Release libbsd 0.4.1

This makes sure the install-exec-hook under src works as expected even
when no runtimelibdir was specified, otherwise the symlinks end up
pointing to non-existing targets.

Reported-by: Ryan Mullen <rmmullen@gmail.com>

.gitignore

@@ -1,6 +1,19 @@
 ChangeLog
-libbsd.pc
+*.pc
+*.la
 *.lo
 *.o
 *.so*
 *.a
+.deps/
+.libs/
+Makefile
+Makefile.in
+aclocal.m4
+autom4te.cache/
+build-aux/
+configure
+config.*
+libtool
+m4/
+stamp-h1

COPYING

@@ -0,0 +1,584 @@
+The following 4-clause BSD licenses are only for man pages, specifically
+for man/arc4random.3, man/tree.3 and man/getprogname.3.
+
+
+    Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+    3. All advertising materials mentioning features or use of this software
+       must display the following acknowledgement:
+         This product includes software developed by Niels Provos.
+    4. The name of the author may not be used to endorse or promote products
+       derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    --
+
+    Copyright © 2001 Christopher G. Demetriou
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+    3. All advertising materials mentioning features or use of this software
+       must display the following acknowledgement:
+             This product includes software developed for the
+             NetBSD Project.  See http://www.netbsd.org/ for
+             information about NetBSD.
+    4. The name of the author may not be used to endorse or promote products
+       derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+The rest of the licenses apply to code and/or man pages.
+
+
+    Copyright © 2004-2006, 2008-2011 Guillem Jover <guillem@hadrons.org>
+    Copyright © 2005 Hector Garcia Alvarez
+    Copyright © 2005 Aurelien Jarno
+    Copyright © 2006 Robert Millan
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+    3. The name of the author may not be used to endorse or promote products
+       derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+    INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+    AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+    THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+    OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+    OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+    ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    --
+
+    Copyright © 1980, 1982, 1986, 1989-1994
+	The Regents of the University of California.  All rights reserved.
+
+    Some code is derived from software contributed to Berkeley by
+    the American National Standards Committee X3, on Information
+    Processing Systems.
+
+    Some code is derived from software contributed to Berkeley by
+    Peter McIlroy.
+
+    Some code is derived from software contributed to Berkeley by
+    Ronnie Kon at Mindcraft Inc., Kevin Lew and Elmer Yglesias.
+
+    Some code is derived from software contributed to Berkeley by
+    Dave Borman at Cray Research, Inc.
+
+    Some code is derived from software contributed to Berkeley by
+    Paul Vixie.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+    3. Neither the name of the University nor the names of its contributors
+       may be used to endorse or promote products derived from this software
+       without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+    SUCH DAMAGE.
+
+    --
+
+    Copyright © 1996  Peter Wemm <peter@FreeBSD.org>.
+    All rights reserved.
+    Copyright © 2002 Networks Associates Technology, Inc.
+    All rights reserved.
+
+    Portions of this software were developed for the FreeBSD Project by
+    ThinkSec AS and NAI Labs, the Security Research Division of Network
+    Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
+    ("CBOSS"), as part of the DARPA CHATS research program.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, is permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+    3. The name of the author may not be used to endorse or promote
+       products derived from this software without specific prior written
+       permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+    SUCH DAMAGE.
+
+    --
+
+    Copyright © 1995 Peter Wemm <peter@FreeBSD.org>
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, is permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice immediately at the beginning of the file, without modification,
+       this list of conditions, and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+    3. This work was done expressly for inclusion into FreeBSD.  Other use
+       is permitted provided this notation is included.
+    4. Absolutely no warranty of function or purpose is made by the author
+       Peter Wemm.
+    5. Modifications may be freely made to this file providing the above
+       conditions are met.
+
+    --
+
+    Copyright © 1997-2000, 2002, 2005, 2006, 2008 The NetBSD Foundation, Inc.
+    All rights reserved.
+
+    Some code was contributed to The NetBSD Foundation by Allen Briggs.
+
+    Some code is derived from software contributed to The NetBSD Foundation
+    by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
+    NASA Ames Research Center, by Luke Mewburn and by Tomas Svensson.
+
+    Some code is derived from software contributed to The NetBSD Foundation
+    by Julio M. Merino Vidal, developed as part of Google's Summer of Code
+    2005 program.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+    TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+    PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+    BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    --
+
+    Copyright (c) 2009 Advanced Computing Technologies LLC
+    Written by: John H. Baldwin <jhb@FreeBSD.org>
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+    SUCH DAMAGE.
+
+    --
+
+    Copyright © 1998, M. Warner Losh <imp@freebsd.org>
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+    SUCH DAMAGE.
+
+    --
+
+    Copyright © 2001 Dima Dorfman.
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+    SUCH DAMAGE.
+
+    --
+
+    Copyright © 2002 Niels Provos <provos@citi.umich.edu>
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    --
+
+    Copyright © 2002 Thomas Moestl <tmm@FreeBSD.org>
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+    SUCH DAMAGE.
+
+    --
+
+    Copyright © 2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+    SUCH DAMAGE.
+
+    --
+
+    Copyright © 2007 Eric Anderson <anderson@FreeBSD.org>
+    Copyright © 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+    SUCH DAMAGE.
+
+    --
+
+    Copyright © 2007 Dag-Erling Coïdan Smørgrav
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+
+    --
+
+    Copyright © 2007 Dag-Erling Coïdan Smørgrav
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer
+       in this position and unchanged.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+    SUCH DAMAGE.
+
+    --
+
+    Copyright © 1998, 2000 Todd C. Miller <Todd.Miller@courtesan.com>
+    Copyright © 2004 Ted Unangst
+
+    Copyright © 2004 Ted Unangst and Todd Miller
+    All rights reserved.
+
+    Permission to use, copy, modify, and distribute this software for any
+    purpose with or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+    --
+
+    Copyright © 2000-2002, 2004-2005, 2007, 2010
+        Todd C. Miller <Todd.Miller@courtesan.com>
+
+    Permission to use, copy, modify, and distribute this software for any
+    purpose with or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+    Sponsored in part by the Defense Advanced Research Projects
+    Agency (DARPA) and Air Force Research Laboratory, Air Force
+    Materiel Command, USAF, under agreement number F39502-99-1-0512
+
+    --
+
+    Copyright © 1996 by Internet Software Consortium.
+
+    Permission to use, copy, modify, and distribute this software for any
+    purpose with or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+    ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+    OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+    CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+    DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+    PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+    ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+    SOFTWARE.
+
+    --
+
+    Copyright © 1996, David Mazieres <dm@uun.org>
+    Copyright © 2008, Damien Miller <djm@openbsd.org>
+
+    Permission to use, copy, modify, and distribute this software for any
+    purpose with or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    Modification and redistribution in source and binary forms is
+    permitted provided that due credit is given to the author and the
+    OpenBSD project (for instance by leaving this copyright notice
+    intact).
+
+    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+    This code is derived from section 17.1 of Applied Cryptography,
+    second edition, which describes a stream cipher allegedly
+    compatible with RSA Labs "RC4" cipher (the actual description of
+    which is a trade secret).  The same algorithm is used as a stream
+    cipher called "arcfour" in Tatu Ylonen's ssh package.
+
+    Here the stream cipher has been modified always to include the time
+    when initializing the state.  That makes it impossible to
+    regenerate the same random sequence twice, so this can't be used
+    for encryption, but will generate good random numbers.
+
+    RC4 is a registered trademark of RSA Laboratories.
+
+    --
+
+    This code implements the MD5 message-digest algorithm.
+    The algorithm is due to Ron Rivest. This code was
+    written by Colin Plumb in 1993, no copyright is claimed.
+    This code is in the public domain; do with it what you wish.
+
+    Equivalent code is available from RSA Data Security, Inc.
+    This code has been tested against that, and is equivalent,
+    except that you don't need to include two pages of legalese
+    with every copy.
+
+    To compute the message digest of a chunk of bytes, declare an
+    MD5Context structure, pass it to MD5Init, call MD5Update as
+    needed on buffers full of bytes, and then call MD5Final, which
+    will fill a supplied 16-byte array with the digest.
+
+    --
+
+    "THE BEER-WARE LICENSE" (Revision 42):
+    <phk@login.dkuug.dk> wrote this file.  As long as you retain this notice you
+    can do whatever you want with this stuff. If we meet some day, and you think
+    this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp

Makefile

@@ -1,162 +0,0 @@
-LIB_NAME := libbsd
-LIB_VERSION_MAJOR := 0
-LIB_VERSION_MINOR := 0
-LIB_VERSION_MICRO := 1
-LIB_VERSION := $(LIB_VERSION_MAJOR).$(LIB_VERSION_MINOR).$(LIB_VERSION_MICRO)
-
-LIB_PKGCONFIG := $(LIB_NAME).pc
-LIB_STATIC := $(LIB_NAME).a
-LIB_SHARED_SO := $(LIB_NAME).so
-LIB_SONAME := $(LIB_SHARED_SO).$(LIB_VERSION_MAJOR)
-LIB_SHARED := $(LIB_SONAME).$(LIB_VERSION_MINOR).$(LIB_VERSION_MICRO)
-
-TAR_NAME := $(LIB_NAME)-$(LIB_VERSION)
-TAR_FILE := $(TAR_NAME).tar.gz
-
-LIB_DIST := \
-	Makefile \
-	README \
-	ChangeLog \
-	Versions \
-	$(LIB_PKGCONFIG).in
-
-LIB_SRCS := \
-	arc4random.c \
-	bsd_getopt.c \
-	err.c \
-	fgetln.c \
-	heapsort.c \
-	humanize_number.c \
-	inet_net_pton.c \
-	hash/md5.c hash/md5hl.c \
-	setmode.c \
-	strlcat.c strlcpy.c \
-	fmtcheck.c \
-	progname.c \
-	vis.c unvis.c
-LIB_SRCS := $(patsubst %,src/%,$(LIB_SRCS))
-
-LIB_GEN_SRCS := \
-	man/md5.3bsd \
-	src/hash/md5hl.c
-
-LIB_INCLUDES := \
-	bsd/err.h \
-	bsd/getopt.h \
-	bsd/inet.h \
-	bsd/ip_icmp.h \
-	bsd/random.h \
-	bsd/queue.h \
-	bsd/md5.h \
-	bsd/string.h \
-	bsd/bsd.h \
-	bsd/cdefs.h \
-	bsd/stdlib.h \
-	vis.h \
-	libutil.h
-
-LIB_MANS := \
-	arc4random.3 \
-	strlcpy.3 \
-	fgetln.3 \
-	fmtcheck.3 \
-	setmode.3 \
-	md5.3bsd
-LIB_MANS := $(patsubst %,man/%,$(LIB_MANS))
-
-LIB_STATIC_OBJS := $(LIB_SRCS:%.c=%.o)
-LIB_SHARED_OBJS := $(LIB_SRCS:%.c=%.lo)
-
-# Set default value for compilation
-CFLAGS ?= -g -Wall -Wextra -Wno-unused-variable
-
-MK_CFLAGS := -Iinclude/ -include bsd/bsd.h -D_GNU_SOURCE -D__REENTRANT
-
-prefix		:= /usr
-exec_prefix	:=
-libdir		:= ${exec_prefix}/lib
-usrlibdir	:= ${prefix}/lib
-includedir	:= ${prefix}/include
-pkgconfigdir	:= ${usrlibdir}/pkgconfig
-mandir		:= ${prefix}/share/man
-
-.PHONY: libs
-libs: $(LIB_STATIC) $(LIB_SHARED_SO) $(LIB_PKGCONFIG)
-
-.PHONY: man
-man: $(LIB_MANS)
-
-%.lo: %.c
-	$(CC) -o $@ $(MK_CFLAGS) $(CFLAGS) -DPIC -fPIC -c $<
-
-%.o: %.c
-	$(CC) -o $@ $(MK_CFLAGS) $(CFLAGS) -c $<
-
-man/md5.3bsd:  man/mdX.3
-	sed -e 's/mdX/md5/g' -e 's/mdY/md4/g' -e 's/MDX/MD5/g' $< > $@
-
-src/hash/md5hl.c: src/hash/helper.c
-	sed -e 's:hashinc:bsd/md5.h:g' -e 's:HASH:MD5:g' $< > $@
-
-# FIXME: the variables should be preserved unexpanded in the .pc file
-$(LIB_PKGCONFIG): $(LIB_PKGCONFIG).in
-	sed -e 's:@VERSION@:$(LIB_VERSION):' \
-	    -e 's:@prefix@:$(prefix):' \
-	    -e 's:@exec_prefix@:$(exec_prefix):' \
-	    -e 's:@libdir@:$(libdir):' \
-	    -e 's:@includedir@:$(includedir):' \
-	    $< > $@
-
-$(LIB_STATIC): $(LIB_STATIC_OBJS)
-	ar rcs $@ $^
-
-$(LIB_SHARED_SO): $(LIB_SONAME)
-	ln -fs $^ $@
-
-$(LIB_SONAME): $(LIB_SHARED)
-	ln -fs $^ $@
-
-$(LIB_SHARED): $(LIB_SHARED_OBJS)
-	gcc -shared \
-	  -Wl,-soname -Wl,$(LIB_SONAME) \
-	  -Wl,--version-script=Versions \
-	  -o $@ $^
-
-.PHONY: ChangeLog
-ChangeLog:
-	-git log --stat -C >$@
-
-.PHONY: dist
-dist: ChangeLog
-	mkdir $(TAR_NAME)
-	cp -a include src man $(LIB_DIST) $(TAR_NAME)
-	tar czf $(TAR_FILE) --exclude=.gitignore $(TAR_NAME)
-	rm -rf $(TAR_NAME)
-	gpg -a -b $(TAR_FILE)
-
-.PHONY: install
-install: libs man
-	mkdir -p $(DESTDIR)/$(libdir)
-	mkdir -p $(DESTDIR)/$(usrlibdir)
-	mkdir -p $(DESTDIR)/$(includedir)/bsd/
-	mkdir -p $(DESTDIR)/$(mandir)/man3
-	mkdir -p $(DESTDIR)/$(pkgconfigdir)
-	install -m644 $(LIB_STATIC) $(DESTDIR)/$(usrlibdir)
-	install -m644 $(LIB_SHARED) $(DESTDIR)/$(libdir)
-	for i in $(LIB_INCLUDES); do \
-	  install -m644 include/$$i $(DESTDIR)/$(includedir)/$$i; \
-	done
-	install -m644 $(LIB_MANS) $(DESTDIR)/$(mandir)/man3
-	install -m644 $(LIB_PKGCONFIG) $(DESTDIR)/$(pkgconfigdir)
-	ln -sf $(libdir)/$(LIB_SHARED) $(DESTDIR)/$(usrlibdir)/$(LIB_SHARED_SO)
-	ln -sf $(LIB_SHARED) $(DESTDIR)/$(libdir)/$(LIB_SONAME)
-
-.PHONY: clean
-clean:
-	rm -f $(LIB_PKGCONFIG)
-	rm -f $(LIB_GEN_SRCS)
-	rm -f $(LIB_STATIC_OBJS)
-	rm -f $(LIB_STATIC)
-	rm -f $(LIB_SHARED_OBJS)
-	rm -f $(LIB_SHARED) $(LIB_SONAME) $(LIB_SHARED_SO)
-

Makefile.am

@@ -0,0 +1,19 @@
+## Process this file with automake to produce Makefile.in
+
+SUBDIRS = include man src test
+
+ACLOCAL_AMFLAGS = -I m4
+
+EXTRA_DIST = \
+	autogen \
+	get-version \
+	$(nil)
+
+DISTCLEANFILES = ChangeLog
+.PHONY: ChangeLog
+
+ChangeLog:
+	git log --stat -C >$@
+
+dist-hook:
+	echo $(VERSION) >$(distdir)/.dist-version

README

@@ -27,6 +27,5 @@ The mail address is:
 Source Repository
 -----------------
 
-  <http://gitweb.freedesktop.org/?p=libbsd.git>
+  <http://cgit.freedesktop.org/libbsd>
   <git://anongit.freedesktop.org/git/libbsd>
-

TODO

@@ -1,4 +1,3 @@
 * Add more functions used by ported packages (check openssh).
-* Fix includes on man pages.
 * Add missing man pages.
 * Add a README.import file.

Versions

@@ -1,36 +0,0 @@
-LIBBSD_0.0 {
-  global:
-    arc4random;
-    arc4random_stir;
-    arc4random_addrandom;
-    bsd_getopt; optreset;
-    errc; warnc; verrc; vwarnc;
-    fgetln;
-    fgetwln;
-    fmtcheck;
-    heapsort;
-    humanize_number;
-    inet_net_pton;
-
-    getprogname; setprogname;
-    strlcpy;
-    strlcat;
-
-    setmode;
-    getmode;
-
-    vis; strvis; strvisx;
-    unvis; strunvis; strunvisx;
-    MD5Init;
-    MD5Update;
-    MD5Pad;
-    MD5Final;
-    MD5Transform;
-    MD5End;
-    MD5File;
-    MD5FileChunk;
-    MD5Data;
-
-  local:
-    *;
-};

autogen

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+mkdir -p m4
+autoreconf -f -i
+rm -rf autom4te.cache

configure.ac

@@ -0,0 +1,78 @@
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ([2.67])
+AC_INIT([libbsd], m4_esyscmd([./get-version]), [libbsd@lists.freedesktop.org])
+AC_CONFIG_SRCDIR([src/fgetln.c])
+AC_CONFIG_AUX_DIR([build-aux])
+AC_CONFIG_MACRO_DIR([m4])
+
+AM_INIT_AUTOMAKE([1.8 foreign nostdinc])
+
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])],
+                            [AC_SUBST([AM_DEFAULT_VERBOSITY], [1])])
+
+# Checks for operating system services and capabilities.
+AC_USE_SYSTEM_EXTENSIONS
+AC_SYS_LARGEFILE
+
+LT_INIT
+
+# Checks for programs.
+AC_PROG_CC
+AC_PROG_INSTALL
+AC_PROG_LN_S
+
+# Checks for libraries.
+
+# Checks for header files.
+AC_CHECK_HEADERS([sys/ndir.h sys/dir.h dir.h dirent.h])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_TYPE_UID_T
+AC_C_INLINE
+AC_TYPE_INT64_T
+AC_TYPE_MODE_T
+AC_TYPE_OFF_T
+AC_TYPE_PID_T
+AC_TYPE_SIZE_T
+AC_TYPE_SSIZE_T
+
+AC_CHECK_DECL([F_CLOSEM],
+              [AC_DEFINE([HAVE_FCNTL_CLOSEM], [1],
+                         [Define to 1 if you have fcntl(F_CLOSEM)])],
+              [],
+              [#include <limits.h>
+               #include <fcntl.h>])
+
+# Checks for library functions.
+AC_MSG_CHECKING([for program_invocation_short_name])
+AC_LINK_IFELSE(
+	[AC_LANG_PROGRAM([[#include <errno.h>]],
+	                 [[const char *p = program_invocation_short_name;]])],
+	[AC_DEFINE([HAVE_PROGRAM_INVOCATION_SHORT_NAME], [1],
+	           [Define to 1 if you have program_invocation_short_name])
+	 AC_MSG_RESULT([yes])],
+	[AC_MSG_RESULT([no])])
+
+AC_MSG_CHECKING([for __progname])
+AC_LINK_IFELSE(
+	[AC_LANG_PROGRAM([[]],
+	                 [[extern char *__progname;
+	                   const char *p = __progname;]])],
+	[AC_DEFINE([HAVE___PROGNAME], [1], [Define to 1 if you have __progname])
+	 AC_MSG_RESULT([yes])],
+	[AC_MSG_RESULT([no])])
+
+AC_CHECK_FUNCS([dirfd __fpurge getexecname getline sysconf])
+
+AC_CONFIG_FILES([
+	Makefile
+	include/Makefile
+	man/Makefile
+	src/Makefile
+	src/libbsd.pc
+	src/libbsd-overlay.pc
+	test/Makefile
+])
+AC_CONFIG_HEADERS([config.h])
+AC_OUTPUT

get-version

@@ -0,0 +1,48 @@
+#!/bin/sh
+#
+# get-version
+#
+# Copyright © 2009 Guillem Jover <guillem@hadrons.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. The name of the author may not be used to endorse or promote products
+#    derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+# AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+# THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+if [ -f .dist-version ]; then
+  # Get the version from the file distributed in the tarball.
+  version=$(cat .dist-version)
+elif [ -d .git ]; then
+  # Ger the version from the git repository.
+  version=$(git describe --abbrev=4 HEAD 2>/dev/null)
+
+  # Check if we are on a dirty checkout.
+  git update-index --refresh -q >/dev/null
+  dirty=$(git diff-index --name-only HEAD 2>/dev/null)
+  if [ -n "$dirty" ]; then
+    version="$version-dirty"
+  fi
+else
+  echo "error: cannot get project version." 1>&2
+  exit 1
+fi
+
+# Use printf to avoid the trailing new line that m4_esyscmd would not handle.
+printf "$version"

include/Makefile.am

@@ -0,0 +1,24 @@
+## Process this file with automake to produce Makefile.in
+
+nobase_include_HEADERS = \
+	bsd/sys/bitstring.h \
+	bsd/sys/cdefs.h \
+	bsd/sys/endian.h \
+	bsd/sys/poll.h \
+	bsd/sys/queue.h \
+	bsd/sys/tree.h \
+	bsd/netinet/ip_icmp.h \
+	bsd/bitstring.h \
+	bsd/bsd.h \
+	bsd/err.h \
+	bsd/getopt.h \
+	bsd/libutil.h \
+	bsd/md5.h \
+	bsd/nlist.h \
+	bsd/readpassphrase.h \
+	bsd/stdio.h \
+	bsd/stdlib.h \
+	bsd/string.h \
+	bsd/unistd.h \
+	bsd/vis.h \
+	$(nil)

include/bsd/bitstring.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008 Guillem Jover
+ * Copyright © 2012 Guillem Jover <guillem@hadrons.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -24,12 +24,9 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef LIBBSD_INET_H
+/* For compatibility with NetBSD and OpenBSD. */
-#define LIBBSD_INET_H
+#ifdef LIBBSD_OVERLAY
-
+#include <sys/bitstring.h>
-#include <stddef.h>
+#else
-
+#include <bsd/sys/bitstring.h>
-int inet_net_pton(int af, const char *src, void *dst, siez_t size);
-
 #endif
-

include/bsd/bsd.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004, 2005, 2006 Guillem Jover
+ * Copyright © 2004, 2005, 2006 Guillem Jover <guillem@hadrons.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -31,15 +31,14 @@
  * Include all bsd compat headers.
  */
 
-#include <bsd/cdefs.h>
+#include <bsd/sys/cdefs.h>
+#include <bsd/sys/queue.h>
+#include <bsd/sys/tree.h>
+#include <bsd/netinet/ip_icmp.h>
 #include <bsd/stdlib.h>
 #include <bsd/string.h>
 #include <bsd/err.h>
 #include <bsd/getopt.h>
-#include <bsd/random.h>
 #include <bsd/md5.h>
-#include <bsd/queue.h>
-#include <bsd/ip_icmp.h>
-#include <time.h>
 
 #endif

include/bsd/err.h

@@ -1,5 +1,6 @@
 /*
- * Copyright (C) 2006 Robert Millan
+ * Copyright © 2006 Robert Millan
+ * Copyright © 2009, 2011 Guillem Jover <guillem@hadrons.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -24,14 +25,24 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef LIBBSD_OVERLAY
+#include_next <err.h>
+#else
+#include <err.h>
+#endif
+
 #ifndef LIBBSD_ERR_H
 #define LIBBSD_ERR_H
 
-#include <err.h>
+#include <sys/cdefs.h>
 
+#include <stdarg.h>
+
+__BEGIN_DECLS
 extern void warnc (int code, const char *format, ...);
 extern void vwarnc (int code, const char *format, va_list ap);
 extern void errc (int status, int code, const char *format, ...);
 extern void verrc (int status, int code, const char *format, va_list ap);
+__END_DECLS
 
 #endif

include/bsd/getopt.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2006 Robert Millan
+ * Copyright © 2011 Guillem Jover <guillem@hadrons.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -24,13 +24,10 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef LIBBSD_GETOPT_H
+#ifdef LIBBSD_OVERLAY
-#define LIBBSD_GETOPT_H
+#include_next <getopt.h>
-
+#include <unistd.h>
+#else
 #include <getopt.h>
-
+#include <bsd/unistd.h>
-extern int optreset;
-
-int bsd_getopt (int, char **, char *);
-
 #endif

include/bsd/libutil.h

@@ -41,11 +41,27 @@
 
 #include <features.h>
 #include <sys/types.h>
+#include <stdint.h>
 
+/* for pidfile.c */
+struct pidfh {
+	int	pf_fd;
+	char	*pf_path;
+	dev_t	pf_dev;
+	ino_t	pf_ino;
+};
 
 __BEGIN_DECLS
 int humanize_number(char *buf, size_t len, int64_t bytes,
     const char *suffix, int scale, int flags);
+int expand_number(const char *_buf, uint64_t *_num);
+
+int flopen(const char *_path, int _flags, ...);
+
+struct pidfh *pidfile_open(const char *path, mode_t mode, pid_t *pidptr);
+int pidfile_write(struct pidfh *pfh);
+int pidfile_close(struct pidfh *pfh);
+int pidfile_remove(struct pidfh *pfh);
 __END_DECLS
 
 /* humanize_number(3) */

include/bsd/nlist.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright © 2009 Guillem Jover <guillem@hadrons.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef LIBBSD_NLIST_H
+#define LIBBSD_NLIST_H
+
+#include <sys/cdefs.h>
+#include <a.out.h>
+
+__BEGIN_DECLS
+extern int nlist(const char *filename, struct nlist *list);
+__END_DECLS
+
+#endif

include/bsd/readpassphrase.h

@@ -0,0 +1,41 @@
+/*	$OpenBSD: readpassphrase.h,v 1.4 2003/06/03 01:52:39 millert Exp $	*/
+
+/*
+ * Copyright (c) 2000, 2002 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F39502-99-1-0512.
+ */
+
+#ifndef _READPASSPHRASE_H_
+#define _READPASSPHRASE_H_
+
+#define RPP_ECHO_OFF    0x00		/* Turn off echo (default). */
+#define RPP_ECHO_ON     0x01		/* Leave echo on. */
+#define RPP_REQUIRE_TTY 0x02		/* Fail if there is no tty. */
+#define RPP_FORCELOWER  0x04		/* Force input to lower case. */
+#define RPP_FORCEUPPER  0x08		/* Force input to upper case. */
+#define RPP_SEVENBIT    0x10		/* Strip the high bit from input. */
+#define RPP_STDIN       0x20		/* Read from stdin, not /dev/tty */
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+__BEGIN_DECLS
+char * readpassphrase(const char *, char *, size_t, int);
+__END_DECLS
+
+#endif /* !_READPASSPHRASE_H_ */

include/bsd/stdio.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004, 2005, 2006 Guillem Jover
+ * Copyright © 2004, 2005, 2009, 2011 Guillem Jover <guillem@hadrons.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -24,45 +24,24 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef LIBBSD_CDEFS_H
+#ifdef LIBBSD_OVERLAY
-#define LIBBSD_CDEFS_H
+#include_next <stdio.h>
+#else
+#include <stdio.h>
+#endif
+
+#ifndef LIBBSD_STDIO_H
+#define LIBBSD_STDIO_H
 
 #include <sys/cdefs.h>
+#include <sys/types.h>
 
-#ifndef setproctitle
+__BEGIN_DECLS
-# define setproctitle(fmt, args...)
+const char *fmtcheck(const char *, const char *);
-#endif
 
-#ifndef __dead2
+char *fgetln(FILE *fp, size_t *lenp);
-# define __dead2
-#endif
 
-/* Linux headers define a struct with a member names __unused.
+int fpurge(FILE *fp);
- * Disable for now. */
+__END_DECLS
-#if 0
-#ifndef __unused
-# ifdef __GNUC__
-#  define __unused __attribute__((unused))
-# else
-#  define __unused
-# endif
-#endif
-#endif
-
-#ifndef __printflike
-# ifdef __GNUC__
-#  define __printflike(x, y) __attribute((format(printf, (x), (y))))
-# else
-#  define __printflike(x, y)
-# endif
-#endif
-
-#ifndef __bounded__
-# define __bounded__(x, y, z)
-#endif
-
-#ifndef __FBSDID
-# define __FBSDID(x)
-#endif
 
 #endif

include/bsd/stdlib.h

@@ -1,7 +1,7 @@
 /*
- * Copyright (C) 2005 Aurelien Jarno
+ * Copyright © 2005 Aurelien Jarno
- * Copyright (C) 2006 Robert Millan
+ * Copyright © 2006 Robert Millan
- * Copyright (C) 2008 Guillem Jover
+ * Copyright © 2008-2011 Guillem Jover <guillem@hadrons.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -26,24 +26,50 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef LIBBSD_OVERLAY
+#include_next <stdlib.h>
+#else
+#include <stdlib.h>
+#endif
+
+/* For compatibility with NetBSD, which defines humanize_number here. */
+#ifdef LIBBSD_OVERLAY
+#include <libutil.h>
+#else
+#include <bsd/libutil.h>
+#endif
+
 #ifndef LIBBSD_STDLIB_H
 #define LIBBSD_STDLIB_H
 
+#include <sys/cdefs.h>
 #include <sys/stat.h>
-#include <stdlib.h>
+#include <stdint.h>
 
-const char *fmtcheck (const char *, const char *);
+__BEGIN_DECLS
+u_int32_t arc4random();
+void arc4random_stir();
+void arc4random_addrandom(u_char *dat, int datlen);
+void arc4random_buf(void *_buf, size_t n);
+u_int32_t arc4random_uniform(u_int32_t upper_bound);
 
-char *getprogname ();
+int dehumanize_number(const char *str, int64_t *size);
-void setprogname (char *);
+
+const char *getprogname(void);
+void setprogname(const char *);
 
 int heapsort (void *, size_t, size_t, int (*)(const void *, const void *));
+int mergesort(void *base, size_t nmemb, size_t size,
+              int (*cmp)(const void *, const void *));
+int radixsort(const unsigned char **base, int nmemb,
+              const unsigned char *table, unsigned endbyte);
+int sradixsort(const unsigned char **base, int nmemb,
+               const unsigned char *table, unsigned endbyte);
 
-#ifndef S_ISTXT
+void *reallocf(void *ptr, size_t size);
-#define S_ISTXT S_ISVTX
-#endif
 
-mode_t getmode(const void *set, mode_t mode);
+long long strtonum(const char *nptr, long long minval, long long maxval,
-void *setmode(const char *mode_str);
+                   const char **errstr);
+__END_DECLS
 
 #endif

include/bsd/string.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004, 2005 Guillem Jover
+ * Copyright © 2004, 2005, 2009, 2011 Guillem Jover <guillem@hadrons.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -24,16 +24,22 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef LIBBSD_OVERLAY
+#include_next <string.h>
+#else
+#include <string.h>
+#endif
+
 #ifndef LIBBSD_STRING_H
 #define LIBBSD_STRING_H
 
+#include <sys/cdefs.h>
 #include <sys/types.h>
-#include <stddef.h>
-#include <stdio.h>
 
+__BEGIN_DECLS
 size_t strlcpy(char *dst, const char *src, size_t siz);
 size_t strlcat(char *dst, const char *src, size_t siz);
-char *fgetln(FILE *fp, size_t *lenp);
+void strmode(mode_t mode, char *str);
-wchar_t *fgetwln(FILE * __restrict fp, size_t *lenp);
+__END_DECLS
 
 #endif

include/bsd/sys/bitstring.h

@@ -0,0 +1,146 @@
+/*-
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Paul Vixie.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _SYS_BITSTRING_H_
+#define	_SYS_BITSTRING_H_
+
+typedef	unsigned char bitstr_t;
+
+/* internal macros */
+				/* byte of the bitstring bit is in */
+#define	_bit_byte(bit) \
+	((bit) >> 3)
+
+				/* mask for the bit within its byte */
+#define	_bit_mask(bit) \
+	(1 << ((bit)&0x7))
+
+/* external macros */
+				/* bytes in a bitstring of nbits bits */
+#define	bitstr_size(nbits) \
+	(((nbits) + 7) >> 3)
+
+				/* allocate a bitstring */
+#define	bit_alloc(nbits) \
+	(bitstr_t *)calloc((size_t)bitstr_size(nbits), sizeof(bitstr_t))
+
+				/* allocate a bitstring on the stack */
+#define	bit_decl(name, nbits) \
+	((name)[bitstr_size(nbits)])
+
+				/* is bit N of bitstring name set? */
+#define	bit_test(name, bit) \
+	((name)[_bit_byte(bit)] & _bit_mask(bit))
+
+				/* set bit N of bitstring name */
+#define	bit_set(name, bit) \
+	((name)[_bit_byte(bit)] |= _bit_mask(bit))
+
+				/* clear bit N of bitstring name */
+#define	bit_clear(name, bit) \
+	((name)[_bit_byte(bit)] &= ~_bit_mask(bit))
+
+				/* clear bits start ... stop in bitstring */
+#define	bit_nclear(name, start, stop) do { \
+	register bitstr_t *_name = (name); \
+	register int _start = (start), _stop = (stop); \
+	register int _startbyte = _bit_byte(_start); \
+	register int _stopbyte = _bit_byte(_stop); \
+	if (_startbyte == _stopbyte) { \
+		_name[_startbyte] &= ((0xff >> (8 - (_start&0x7))) | \
+				      (0xff << ((_stop&0x7) + 1))); \
+	} else { \
+		_name[_startbyte] &= 0xff >> (8 - (_start&0x7)); \
+		while (++_startbyte < _stopbyte) \
+			_name[_startbyte] = 0; \
+		_name[_stopbyte] &= 0xff << ((_stop&0x7) + 1); \
+	} \
+} while (0)
+
+				/* set bits start ... stop in bitstring */
+#define	bit_nset(name, start, stop) do { \
+	register bitstr_t *_name = (name); \
+	register int _start = (start), _stop = (stop); \
+	register int _startbyte = _bit_byte(_start); \
+	register int _stopbyte = _bit_byte(_stop); \
+	if (_startbyte == _stopbyte) { \
+		_name[_startbyte] |= ((0xff << (_start&0x7)) & \
+				    (0xff >> (7 - (_stop&0x7)))); \
+	} else { \
+		_name[_startbyte] |= 0xff << ((_start)&0x7); \
+		while (++_startbyte < _stopbyte) \
+	    		_name[_startbyte] = 0xff; \
+		_name[_stopbyte] |= 0xff >> (7 - (_stop&0x7)); \
+	} \
+} while (0)
+
+				/* find first bit clear in name */
+#define	bit_ffc(name, nbits, value) do { \
+	register bitstr_t *_name = (name); \
+	register int _byte, _nbits = (nbits); \
+	register int _stopbyte = _bit_byte(_nbits - 1), _value = -1; \
+	if (_nbits > 0) \
+		for (_byte = 0; _byte <= _stopbyte; ++_byte) \
+			if (_name[_byte] != 0xff) { \
+				bitstr_t _lb; \
+				_value = _byte << 3; \
+				for (_lb = _name[_byte]; (_lb&0x1); \
+				    ++_value, _lb >>= 1); \
+				break; \
+			} \
+	if (_value >= nbits) \
+		_value = -1; \
+	*(value) = _value; \
+} while (0)
+
+				/* find first bit set in name */
+#define	bit_ffs(name, nbits, value) do { \
+	register bitstr_t *_name = (name); \
+	register int _byte, _nbits = (nbits); \
+	register int _stopbyte = _bit_byte(_nbits - 1), _value = -1; \
+	if (_nbits > 0) \
+		for (_byte = 0; _byte <= _stopbyte; ++_byte) \
+			if (_name[_byte]) { \
+				bitstr_t _lb; \
+				_value = _byte << 3; \
+				for (_lb = _name[_byte]; !(_lb&0x1); \
+				    ++_value, _lb >>= 1); \
+				break; \
+			} \
+	if (_value >= nbits) \
+		_value = -1; \
+	*(value) = _value; \
+} while (0)
+
+#endif /* !_SYS_BITSTRING_H_ */

include/bsd/sys/cdefs.h

@@ -0,0 +1,141 @@
+/*
+ * Copyright © 2004-2006, 2009-2011 Guillem Jover <guillem@hadrons.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef LIBBSD_OVERLAY
+#include_next <sys/cdefs.h>
+#else
+#include <sys/cdefs.h>
+#endif
+
+#ifndef LIBBSD_SYS_CDEFS_H
+#define LIBBSD_SYS_CDEFS_H
+
+/*
+ * Some kFreeBSD headers expect those macros to be set for sanity checks.
+ */
+#ifndef _SYS_CDEFS_H_
+#define _SYS_CDEFS_H_
+#endif
+#ifndef _SYS_CDEFS_H
+#define _SYS_CDEFS_H
+#endif
+
+#ifdef __GNUC__
+#define LIBBSD_GCC_VERSION (__GNUC__ << 8 | __GNUC_MINOR__)
+#else
+#define LIBBSD_GCC_VERSION 0
+#endif
+
+#ifndef __dead2
+# if LIBBSD_GCC_VERSION >= 0x0207
+#  define __dead2 __attribute__((__noreturn__))
+# else
+#  define __dead2
+# endif
+#endif
+
+#ifndef __pure2
+# if LIBBSD_GCC_VERSION >= 0x0207
+#  define __pure2 __attribute__((__const__))
+# else
+#  define __pure2
+# endif
+#endif
+
+#ifndef __packed
+# if LIBBSD_GCC_VERSION >= 0x0207
+#  define __packed __attribute__((__packed__))
+# else
+#  define __packed
+# endif
+#endif
+
+#ifndef __aligned
+# if LIBBSD_GCC_VERSION >= 0x0207
+#  define __aligned(x) __attribute__((__aligned__(x)))
+# else
+#  define __aligned(x)
+# endif
+#endif
+
+/* Linux headers define a struct with a member names __unused.
+ * Debian bugs: #522773 (linux), #522774 (libc).
+ * Disable for now. */
+#if 0
+#ifndef __unused
+# if LIBBSD_GCC_VERSION >= 0x0300
+#  define __unused __attribute__((unused))
+# else
+#  define __unused
+# endif
+#endif
+#endif
+
+#ifndef __printflike
+# if LIBBSD_GCC_VERSION >= 0x0300
+#  define __printflike(x, y) __attribute((format(printf, (x), (y))))
+# else
+#  define __printflike(x, y)
+# endif
+#endif
+
+#ifndef __nonnull
+# if LIBBSD_GCC_VERSION >= 0x0302
+#  define __nonnull(x) __attribute__((__nonnull__(x)))
+# else
+#  define __nonnull(x)
+# endif
+#endif
+
+#ifndef __bounded__
+# define __bounded__(x, y, z)
+#endif
+
+#ifndef __RCSID
+# define __RCSID(x)
+#endif
+
+#ifndef __FBSDID
+# define __FBSDID(x)
+#endif
+
+#ifndef __RCSID
+# define __RCSID(x)
+#endif
+
+#ifndef __RCSID_SOURCE
+# define __RCSID_SOURCE(x)
+#endif
+
+#ifndef __SCCSID
+# define __SCCSID(x)
+#endif
+
+#ifndef __COPYRIGHT
+# define __COPYRIGHT(x)
+#endif
+
+#endif

include/bsd/sys/endian.h

@@ -0,0 +1,188 @@
+/*
+ * Copyright © 2011 Guillem Jover <guillem@hadrons.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef LIBBSD_OVERLAY
+#include_next <endian.h>
+#else
+#include <endian.h>
+#endif
+
+#ifndef LIBBSD_SYS_ENDIAN_H
+#define LIBBSD_SYS_ENDIAN_H
+
+#ifndef _BYTE_ORDER
+#define _BYTE_ORDER __BYTE_ORDER
+#endif
+
+#ifndef _LITTLE_ENDIAN
+#define _LITTLE_ENDIAN __LITTLE_ENDIAN
+#endif
+
+#ifndef _BIG_ENDIAN
+#define _BIG_ENDIAN __BIG_ENDIAN
+#endif
+
+#ifndef _PDP_ENDIAN
+#define _PDP_ENDIAN __PDP_ENDIAN
+#endif
+
+/*
+ * Copyright © 2002 Thomas Moestl <tmm@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdint.h>
+
+/* Alignment-agnostic encode/decode bytestream to/from little/big endian. */
+
+static __inline uint16_t
+be16dec(const void *pp)
+{
+	uint8_t const *p = (uint8_t const *)pp;
+
+	return ((p[0] << 8) | p[1]);
+}
+
+static __inline uint32_t
+be32dec(const void *pp)
+{
+	uint8_t const *p = (uint8_t const *)pp;
+
+	return (((unsigned)p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]);
+}
+
+static __inline uint64_t
+be64dec(const void *pp)
+{
+	uint8_t const *p = (uint8_t const *)pp;
+
+	return (((uint64_t)be32dec(p) << 32) | be32dec(p + 4));
+}
+
+static __inline uint16_t
+le16dec(const void *pp)
+{
+	uint8_t const *p = (uint8_t const *)pp;
+
+	return ((p[1] << 8) | p[0]);
+}
+
+static __inline uint32_t
+le32dec(const void *pp)
+{
+	uint8_t const *p = (uint8_t const *)pp;
+
+	return (((unsigned)p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]);
+}
+
+static __inline uint64_t
+le64dec(const void *pp)
+{
+	uint8_t const *p = (uint8_t const *)pp;
+
+	return (((uint64_t)le32dec(p + 4) << 32) | le32dec(p));
+}
+
+static __inline void
+be16enc(void *pp, uint16_t u)
+{
+	uint8_t *p = (uint8_t *)pp;
+
+	p[0] = (u >> 8) & 0xff;
+	p[1] = u & 0xff;
+}
+
+static __inline void
+be32enc(void *pp, uint32_t u)
+{
+	uint8_t *p = (uint8_t *)pp;
+
+	p[0] = (u >> 24) & 0xff;
+	p[1] = (u >> 16) & 0xff;
+	p[2] = (u >> 8) & 0xff;
+	p[3] = u & 0xff;
+}
+
+static __inline void
+be64enc(void *pp, uint64_t u)
+{
+	uint8_t *p = (uint8_t *)pp;
+
+	be32enc(p, (uint32_t)(u >> 32));
+	be32enc(p + 4, (uint32_t)(u & 0xffffffffU));
+}
+
+static __inline void
+le16enc(void *pp, uint16_t u)
+{
+	uint8_t *p = (uint8_t *)pp;
+
+	p[0] = u & 0xff;
+	p[1] = (u >> 8) & 0xff;
+}
+
+static __inline void
+le32enc(void *pp, uint32_t u)
+{
+	uint8_t *p = (uint8_t *)pp;
+
+	p[0] = u & 0xff;
+	p[1] = (u >> 8) & 0xff;
+	p[2] = (u >> 16) & 0xff;
+	p[3] = (u >> 24) & 0xff;
+}
+
+static __inline void
+le64enc(void *pp, uint64_t u)
+{
+	uint8_t *p = (uint8_t *)pp;
+
+	le32enc(p, (uint32_t)(u & 0xffffffffU));
+	le32enc(p + 4, (uint32_t)(u >> 32));
+}
+
+#endif

include/bsd/sys/poll.h

@@ -0,0 +1,40 @@
+/*
+ * Copyright © 2011 Guillem Jover <guillem@hadrons.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef LIBBSD_OVERLAY
+#include_next <sys/poll.h>
+#else
+#include <sys/poll.h>
+#endif
+
+#ifndef LIBBSD_SYS_POLL_H
+#define LIBBSD_SYS_POLL_H
+
+#ifndef INFTIM
+#define INFTIM (-1)
+#endif
+
+#endif

include/bsd/sys/queue.h

@@ -1,4 +1,4 @@
-/*
+/*-
  * Copyright (c) 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
@@ -10,7 +10,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
+ * 4. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
@@ -27,11 +27,11 @@
  * SUCH DAMAGE.
  *
  *	@(#)queue.h	8.5 (Berkeley) 8/20/94
- * $FreeBSD: src/sys/sys/queue.h,v 1.58 2004/04/07 04:19:49 imp Exp $
+ * $FreeBSD$
  */
 
-#ifndef _SYS_QUEUE_H
+#ifndef _SYS_QUEUE_H_
-#define	_SYS_QUEUE_H
+#define	_SYS_QUEUE_H_
 
 #include <sys/cdefs.h>
 
@@ -96,12 +96,12 @@
  * _INSERT_AFTER		+	+	+	+
  * _INSERT_TAIL			-	-	+	+
  * _CONCAT			-	-	+	+
+ * _REMOVE_AFTER		+	-	+	-
  * _REMOVE_HEAD			+	-	+	-
  * _REMOVE			+	+	+	+
  *
  */
-#define	QUEUE_MACRO_DEBUG 0
+#ifdef QUEUE_MACRO_DEBUG
-#if QUEUE_MACRO_DEBUG
 /* Store the last 2 places the queue element or head was altered */
 struct qm_trace {
 	char * lastfile;
@@ -196,9 +196,14 @@ struct {								\
 		struct type *curelm = SLIST_FIRST((head));		\
 		while (SLIST_NEXT(curelm, field) != (elm))		\
 			curelm = SLIST_NEXT(curelm, field);		\
-		SLIST_NEXT(curelm, field) =				\
+		SLIST_REMOVE_AFTER(curelm, field);			\
-		    SLIST_NEXT(SLIST_NEXT(curelm, field), field);	\
 	}								\
+	TRASHIT((elm)->field.sle_next);					\
+} while (0)
+
+#define SLIST_REMOVE_AFTER(elm, field) do {				\
+	SLIST_NEXT(elm, field) =					\
+	    SLIST_NEXT(SLIST_NEXT(elm, field), field);			\
 } while (0)
 
 #define	SLIST_REMOVE_HEAD(head, field) do {				\
@@ -287,10 +292,9 @@ struct {								\
 		struct type *curelm = STAILQ_FIRST((head));		\
 		while (STAILQ_NEXT(curelm, field) != (elm))		\
 			curelm = STAILQ_NEXT(curelm, field);		\
-		if ((STAILQ_NEXT(curelm, field) =			\
+		STAILQ_REMOVE_AFTER(head, curelm, field);		\
-		     STAILQ_NEXT(STAILQ_NEXT(curelm, field), field)) == NULL)\
-			(head)->stqh_last = &STAILQ_NEXT((curelm), field);\
 	}								\
+	TRASHIT((elm)->field.stqe_next);				\
 } while (0)
 
 #define	STAILQ_REMOVE_HEAD(head, field) do {				\
@@ -299,11 +303,26 @@ struct {								\
 		(head)->stqh_last = &STAILQ_FIRST((head));		\
 } while (0)
 
-#define	STAILQ_REMOVE_HEAD_UNTIL(head, elm, field) do {			\
+#define STAILQ_REMOVE_AFTER(head, elm, field) do {			\
-	if ((STAILQ_FIRST((head)) = STAILQ_NEXT((elm), field)) == NULL)	\
+	if ((STAILQ_NEXT(elm, field) =					\
-		(head)->stqh_last = &STAILQ_FIRST((head));		\
+	     STAILQ_NEXT(STAILQ_NEXT(elm, field), field)) == NULL)	\
+		(head)->stqh_last = &STAILQ_NEXT((elm), field);		\
 } while (0)
 
+#define STAILQ_SWAP(head1, head2, type) do {				\
+	struct type *swap_first = STAILQ_FIRST(head1);			\
+	struct type **swap_last = (head1)->stqh_last;			\
+	STAILQ_FIRST(head1) = STAILQ_FIRST(head2);			\
+	(head1)->stqh_last = (head2)->stqh_last;			\
+	STAILQ_FIRST(head2) = swap_first;				\
+	(head2)->stqh_last = swap_last;					\
+	if (STAILQ_EMPTY(head1))					\
+		(head1)->stqh_last = &STAILQ_FIRST(head1);		\
+	if (STAILQ_EMPTY(head2))					\
+		(head2)->stqh_last = &STAILQ_FIRST(head2);		\
+} while (0)
+
+
 /*
  * List declarations.
  */
@@ -325,6 +344,31 @@ struct {								\
  * List functions.
  */
 
+#if (defined(_KERNEL) && defined(INVARIANTS))
+#define	QMD_LIST_CHECK_HEAD(head, field) do {				\
+	if (LIST_FIRST((head)) != NULL &&				\
+	    LIST_FIRST((head))->field.le_prev !=			\
+	     &LIST_FIRST((head)))					\
+		panic("Bad list head %p first->prev != head", (head));	\
+} while (0)
+
+#define	QMD_LIST_CHECK_NEXT(elm, field) do {				\
+	if (LIST_NEXT((elm), field) != NULL &&				\
+	    LIST_NEXT((elm), field)->field.le_prev !=			\
+	     &((elm)->field.le_next))					\
+	     	panic("Bad link elm %p next->prev != elm", (elm));	\
+} while (0)
+
+#define	QMD_LIST_CHECK_PREV(elm, field) do {				\
+	if (*(elm)->field.le_prev != (elm))				\
+		panic("Bad link elm %p prev->next != elm", (elm));	\
+} while (0)
+#else
+#define	QMD_LIST_CHECK_HEAD(head, field)
+#define	QMD_LIST_CHECK_NEXT(elm, field)
+#define	QMD_LIST_CHECK_PREV(elm, field)
+#endif /* (_KERNEL && INVARIANTS) */
+
 #define	LIST_EMPTY(head)	((head)->lh_first == NULL)
 
 #define	LIST_FIRST(head)	((head)->lh_first)
@@ -344,6 +388,7 @@ struct {								\
 } while (0)
 
 #define	LIST_INSERT_AFTER(listelm, elm, field) do {			\
+	QMD_LIST_CHECK_NEXT(listelm, field);				\
 	if ((LIST_NEXT((elm), field) = LIST_NEXT((listelm), field)) != NULL)\
 		LIST_NEXT((listelm), field)->field.le_prev =		\
 		    &LIST_NEXT((elm), field);				\
@@ -352,6 +397,7 @@ struct {								\
 } while (0)
 
 #define	LIST_INSERT_BEFORE(listelm, elm, field) do {			\
+	QMD_LIST_CHECK_PREV(listelm, field);				\
 	(elm)->field.le_prev = (listelm)->field.le_prev;		\
 	LIST_NEXT((elm), field) = (listelm);				\
 	*(listelm)->field.le_prev = (elm);				\
@@ -359,6 +405,7 @@ struct {								\
 } while (0)
 
 #define	LIST_INSERT_HEAD(head, elm, field) do {				\
+	QMD_LIST_CHECK_HEAD((head), field);				\
 	if ((LIST_NEXT((elm), field) = LIST_FIRST((head))) != NULL)	\
 		LIST_FIRST((head))->field.le_prev = &LIST_NEXT((elm), field);\
 	LIST_FIRST((head)) = (elm);					\
@@ -368,10 +415,24 @@ struct {								\
 #define	LIST_NEXT(elm, field)	((elm)->field.le_next)
 
 #define	LIST_REMOVE(elm, field) do {					\
+	QMD_LIST_CHECK_NEXT(elm, field);				\
+	QMD_LIST_CHECK_PREV(elm, field);				\
 	if (LIST_NEXT((elm), field) != NULL)				\
 		LIST_NEXT((elm), field)->field.le_prev = 		\
 		    (elm)->field.le_prev;				\
 	*(elm)->field.le_prev = LIST_NEXT((elm), field);		\
+	TRASHIT((elm)->field.le_next);					\
+	TRASHIT((elm)->field.le_prev);					\
+} while (0)
+
+#define LIST_SWAP(head1, head2, type, field) do {			\
+	struct type *swap_tmp = LIST_FIRST((head1));			\
+	LIST_FIRST((head1)) = LIST_FIRST((head2));			\
+	LIST_FIRST((head2)) = swap_tmp;					\
+	if ((swap_tmp = LIST_FIRST((head1))) != NULL)			\
+		swap_tmp->field.le_prev = &LIST_FIRST((head1));		\
+	if ((swap_tmp = LIST_FIRST((head2))) != NULL)			\
+		swap_tmp->field.le_prev = &LIST_FIRST((head2));		\
 } while (0)
 
 /*
@@ -397,6 +458,37 @@ struct {								\
 /*
  * Tail queue functions.
  */
+#if (defined(_KERNEL) && defined(INVARIANTS))
+#define	QMD_TAILQ_CHECK_HEAD(head, field) do {				\
+	if (!TAILQ_EMPTY(head) &&					\
+	    TAILQ_FIRST((head))->field.tqe_prev !=			\
+	     &TAILQ_FIRST((head)))					\
+		panic("Bad tailq head %p first->prev != head", (head));	\
+} while (0)
+
+#define	QMD_TAILQ_CHECK_TAIL(head, field) do {				\
+	if (*(head)->tqh_last != NULL)					\
+	    	panic("Bad tailq NEXT(%p->tqh_last) != NULL", (head)); 	\
+} while (0)
+
+#define	QMD_TAILQ_CHECK_NEXT(elm, field) do {				\
+	if (TAILQ_NEXT((elm), field) != NULL &&				\
+	    TAILQ_NEXT((elm), field)->field.tqe_prev !=			\
+	     &((elm)->field.tqe_next))					\
+		panic("Bad link elm %p next->prev != elm", (elm));	\
+} while (0)
+
+#define	QMD_TAILQ_CHECK_PREV(elm, field) do {				\
+	if (*(elm)->field.tqe_prev != (elm))				\
+		panic("Bad link elm %p prev->next != elm", (elm));	\
+} while (0)
+#else
+#define	QMD_TAILQ_CHECK_HEAD(head, field)
+#define	QMD_TAILQ_CHECK_TAIL(head, headname)
+#define	QMD_TAILQ_CHECK_NEXT(elm, field)
+#define	QMD_TAILQ_CHECK_PREV(elm, field)
+#endif /* (_KERNEL && INVARIANTS) */
+
 #define	TAILQ_CONCAT(head1, head2, field) do {				\
 	if (!TAILQ_EMPTY(head2)) {					\
 		*(head1)->tqh_last = (head2)->tqh_first;		\
@@ -439,6 +531,7 @@ struct {								\
 } while (0)
 
 #define	TAILQ_INSERT_AFTER(head, listelm, elm, field) do {		\
+	QMD_TAILQ_CHECK_NEXT(listelm, field);				\
 	if ((TAILQ_NEXT((elm), field) = TAILQ_NEXT((listelm), field)) != NULL)\
 		TAILQ_NEXT((elm), field)->field.tqe_prev = 		\
 		    &TAILQ_NEXT((elm), field);				\
@@ -453,6 +546,7 @@ struct {								\
 } while (0)
 
 #define	TAILQ_INSERT_BEFORE(listelm, elm, field) do {			\
+	QMD_TAILQ_CHECK_PREV(listelm, field);				\
 	(elm)->field.tqe_prev = (listelm)->field.tqe_prev;		\
 	TAILQ_NEXT((elm), field) = (listelm);				\
 	*(listelm)->field.tqe_prev = (elm);				\
@@ -462,6 +556,7 @@ struct {								\
 } while (0)
 
 #define	TAILQ_INSERT_HEAD(head, elm, field) do {			\
+	QMD_TAILQ_CHECK_HEAD(head, field);				\
 	if ((TAILQ_NEXT((elm), field) = TAILQ_FIRST((head))) != NULL)	\
 		TAILQ_FIRST((head))->field.tqe_prev =			\
 		    &TAILQ_NEXT((elm), field);				\
@@ -474,6 +569,7 @@ struct {								\
 } while (0)
 
 #define	TAILQ_INSERT_TAIL(head, elm, field) do {			\
+	QMD_TAILQ_CHECK_TAIL(head, field);				\
 	TAILQ_NEXT((elm), field) = NULL;				\
 	(elm)->field.tqe_prev = (head)->tqh_last;			\
 	*(head)->tqh_last = (elm);					\
@@ -491,6 +587,8 @@ struct {								\
 	(*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))
 
 #define	TAILQ_REMOVE(head, elm, field) do {				\
+	QMD_TAILQ_CHECK_NEXT(elm, field);				\
+	QMD_TAILQ_CHECK_PREV(elm, field);				\
 	if ((TAILQ_NEXT((elm), field)) != NULL)				\
 		TAILQ_NEXT((elm), field)->field.tqe_prev = 		\
 		    (elm)->field.tqe_prev;				\
@@ -504,50 +602,21 @@ struct {								\
 	QMD_TRACE_ELEM(&(elm)->field);					\
 } while (0)
 
+#define TAILQ_SWAP(head1, head2, type, field) do {			\
+	struct type *swap_first = (head1)->tqh_first;			\
+	struct type **swap_last = (head1)->tqh_last;			\
+	(head1)->tqh_first = (head2)->tqh_first;			\
+	(head1)->tqh_last = (head2)->tqh_last;				\
+	(head2)->tqh_first = swap_first;				\
+	(head2)->tqh_last = swap_last;					\
+	if ((swap_first = (head1)->tqh_first) != NULL)			\
+		swap_first->field.tqe_prev = &(head1)->tqh_first;	\
+	else								\
+		(head1)->tqh_last = &(head1)->tqh_first;		\
+	if ((swap_first = (head2)->tqh_first) != NULL)			\
+		swap_first->field.tqe_prev = &(head2)->tqh_first;	\
+	else								\
+		(head2)->tqh_last = &(head2)->tqh_first;		\
+} while (0)
 
-#ifdef _KERNEL
+#endif /* !_SYS_QUEUE_H_ */
-
-/*
- * XXX insque() and remque() are an old way of handling certain queues.
- * They bogusly assumes that all queue heads look alike.
- */
-
-struct quehead {
-	struct quehead *qh_link;
-	struct quehead *qh_rlink;
-};
-
-#if defined(__GNUC__) || defined(__INTEL_COMPILER)
-
-static __inline void
-insque(void *a, void *b)
-{
-	struct quehead *element = (struct quehead *)a,
-		 *head = (struct quehead *)b;
-
-	element->qh_link = head->qh_link;
-	element->qh_rlink = head;
-	head->qh_link = element;
-	element->qh_link->qh_rlink = element;
-}
-
-static __inline void
-remque(void *a)
-{
-	struct quehead *element = (struct quehead *)a;
-
-	element->qh_link->qh_rlink = element->qh_rlink;
-	element->qh_rlink->qh_link = element->qh_link;
-	element->qh_rlink = 0;
-}
-
-#else /* !(__GNUC__ || __INTEL_COMPILER) */
-
-void	insque(void *a, void *b);
-void	remque(void *a);
-
-#endif /* __GNUC__ || __INTEL_COMPILER */
-
-#endif /* _KERNEL */
-
-#endif /* !_SYS_QUEUE_H */

include/bsd/sys/tree.h

@@ -0,0 +1,765 @@
+/*	$NetBSD: tree.h,v 1.8 2004/03/28 19:38:30 provos Exp $	*/
+/*	$OpenBSD: tree.h,v 1.7 2002/10/17 21:51:54 art Exp $	*/
+/* $FreeBSD$ */
+
+/*-
+ * Copyright 2002 Niels Provos <provos@citi.umich.edu>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef	_SYS_TREE_H_
+#define	_SYS_TREE_H_
+
+#include <sys/cdefs.h>
+
+/*
+ * This file defines data structures for different types of trees:
+ * splay trees and red-black trees.
+ *
+ * A splay tree is a self-organizing data structure.  Every operation
+ * on the tree causes a splay to happen.  The splay moves the requested
+ * node to the root of the tree and partly rebalances it.
+ *
+ * This has the benefit that request locality causes faster lookups as
+ * the requested nodes move to the top of the tree.  On the other hand,
+ * every lookup causes memory writes.
+ *
+ * The Balance Theorem bounds the total access time for m operations
+ * and n inserts on an initially empty tree as O((m + n)lg n).  The
+ * amortized cost for a sequence of m accesses to a splay tree is O(lg n);
+ *
+ * A red-black tree is a binary search tree with the node color as an
+ * extra attribute.  It fulfills a set of conditions:
+ *	- every search path from the root to a leaf consists of the
+ *	  same number of black nodes,
+ *	- each red node (except for the root) has a black parent,
+ *	- each leaf node is black.
+ *
+ * Every operation on a red-black tree is bounded as O(lg n).
+ * The maximum height of a red-black tree is 2lg (n+1).
+ */
+
+#define SPLAY_HEAD(name, type)						\
+struct name {								\
+	struct type *sph_root; /* root of the tree */			\
+}
+
+#define SPLAY_INITIALIZER(root)						\
+	{ NULL }
+
+#define SPLAY_INIT(root) do {						\
+	(root)->sph_root = NULL;					\
+} while (/*CONSTCOND*/ 0)
+
+#define SPLAY_ENTRY(type)						\
+struct {								\
+	struct type *spe_left; /* left element */			\
+	struct type *spe_right; /* right element */			\
+}
+
+#define SPLAY_LEFT(elm, field)		(elm)->field.spe_left
+#define SPLAY_RIGHT(elm, field)		(elm)->field.spe_right
+#define SPLAY_ROOT(head)		(head)->sph_root
+#define SPLAY_EMPTY(head)		(SPLAY_ROOT(head) == NULL)
+
+/* SPLAY_ROTATE_{LEFT,RIGHT} expect that tmp hold SPLAY_{RIGHT,LEFT} */
+#define SPLAY_ROTATE_RIGHT(head, tmp, field) do {			\
+	SPLAY_LEFT((head)->sph_root, field) = SPLAY_RIGHT(tmp, field);	\
+	SPLAY_RIGHT(tmp, field) = (head)->sph_root;			\
+	(head)->sph_root = tmp;						\
+} while (/*CONSTCOND*/ 0)
+	
+#define SPLAY_ROTATE_LEFT(head, tmp, field) do {			\
+	SPLAY_RIGHT((head)->sph_root, field) = SPLAY_LEFT(tmp, field);	\
+	SPLAY_LEFT(tmp, field) = (head)->sph_root;			\
+	(head)->sph_root = tmp;						\
+} while (/*CONSTCOND*/ 0)
+
+#define SPLAY_LINKLEFT(head, tmp, field) do {				\
+	SPLAY_LEFT(tmp, field) = (head)->sph_root;			\
+	tmp = (head)->sph_root;						\
+	(head)->sph_root = SPLAY_LEFT((head)->sph_root, field);		\
+} while (/*CONSTCOND*/ 0)
+
+#define SPLAY_LINKRIGHT(head, tmp, field) do {				\
+	SPLAY_RIGHT(tmp, field) = (head)->sph_root;			\
+	tmp = (head)->sph_root;						\
+	(head)->sph_root = SPLAY_RIGHT((head)->sph_root, field);	\
+} while (/*CONSTCOND*/ 0)
+
+#define SPLAY_ASSEMBLE(head, node, left, right, field) do {		\
+	SPLAY_RIGHT(left, field) = SPLAY_LEFT((head)->sph_root, field);	\
+	SPLAY_LEFT(right, field) = SPLAY_RIGHT((head)->sph_root, field);\
+	SPLAY_LEFT((head)->sph_root, field) = SPLAY_RIGHT(node, field);	\
+	SPLAY_RIGHT((head)->sph_root, field) = SPLAY_LEFT(node, field);	\
+} while (/*CONSTCOND*/ 0)
+
+/* Generates prototypes and inline functions */
+
+#define SPLAY_PROTOTYPE(name, type, field, cmp)				\
+void name##_SPLAY(struct name *, struct type *);			\
+void name##_SPLAY_MINMAX(struct name *, int);				\
+struct type *name##_SPLAY_INSERT(struct name *, struct type *);		\
+struct type *name##_SPLAY_REMOVE(struct name *, struct type *);		\
+									\
+/* Finds the node with the same key as elm */				\
+static __inline struct type *						\
+name##_SPLAY_FIND(struct name *head, struct type *elm)			\
+{									\
+	if (SPLAY_EMPTY(head))						\
+		return(NULL);						\
+	name##_SPLAY(head, elm);					\
+	if ((cmp)(elm, (head)->sph_root) == 0)				\
+		return (head->sph_root);				\
+	return (NULL);							\
+}									\
+									\
+static __inline struct type *						\
+name##_SPLAY_NEXT(struct name *head, struct type *elm)			\
+{									\
+	name##_SPLAY(head, elm);					\
+	if (SPLAY_RIGHT(elm, field) != NULL) {				\
+		elm = SPLAY_RIGHT(elm, field);				\
+		while (SPLAY_LEFT(elm, field) != NULL) {		\
+			elm = SPLAY_LEFT(elm, field);			\
+		}							\
+	} else								\
+		elm = NULL;						\
+	return (elm);							\
+}									\
+									\
+static __inline struct type *						\
+name##_SPLAY_MIN_MAX(struct name *head, int val)			\
+{									\
+	name##_SPLAY_MINMAX(head, val);					\
+        return (SPLAY_ROOT(head));					\
+}
+
+/* Main splay operation.
+ * Moves node close to the key of elm to top
+ */
+#define SPLAY_GENERATE(name, type, field, cmp)				\
+struct type *								\
+name##_SPLAY_INSERT(struct name *head, struct type *elm)		\
+{									\
+    if (SPLAY_EMPTY(head)) {						\
+	    SPLAY_LEFT(elm, field) = SPLAY_RIGHT(elm, field) = NULL;	\
+    } else {								\
+	    int __comp;							\
+	    name##_SPLAY(head, elm);					\
+	    __comp = (cmp)(elm, (head)->sph_root);			\
+	    if(__comp < 0) {						\
+		    SPLAY_LEFT(elm, field) = SPLAY_LEFT((head)->sph_root, field);\
+		    SPLAY_RIGHT(elm, field) = (head)->sph_root;		\
+		    SPLAY_LEFT((head)->sph_root, field) = NULL;		\
+	    } else if (__comp > 0) {					\
+		    SPLAY_RIGHT(elm, field) = SPLAY_RIGHT((head)->sph_root, field);\
+		    SPLAY_LEFT(elm, field) = (head)->sph_root;		\
+		    SPLAY_RIGHT((head)->sph_root, field) = NULL;	\
+	    } else							\
+		    return ((head)->sph_root);				\
+    }									\
+    (head)->sph_root = (elm);						\
+    return (NULL);							\
+}									\
+									\
+struct type *								\
+name##_SPLAY_REMOVE(struct name *head, struct type *elm)		\
+{									\
+	struct type *__tmp;						\
+	if (SPLAY_EMPTY(head))						\
+		return (NULL);						\
+	name##_SPLAY(head, elm);					\
+	if ((cmp)(elm, (head)->sph_root) == 0) {			\
+		if (SPLAY_LEFT((head)->sph_root, field) == NULL) {	\
+			(head)->sph_root = SPLAY_RIGHT((head)->sph_root, field);\
+		} else {						\
+			__tmp = SPLAY_RIGHT((head)->sph_root, field);	\
+			(head)->sph_root = SPLAY_LEFT((head)->sph_root, field);\
+			name##_SPLAY(head, elm);			\
+			SPLAY_RIGHT((head)->sph_root, field) = __tmp;	\
+		}							\
+		return (elm);						\
+	}								\
+	return (NULL);							\
+}									\
+									\
+void									\
+name##_SPLAY(struct name *head, struct type *elm)			\
+{									\
+	struct type __node, *__left, *__right, *__tmp;			\
+	int __comp;							\
+\
+	SPLAY_LEFT(&__node, field) = SPLAY_RIGHT(&__node, field) = NULL;\
+	__left = __right = &__node;					\
+\
+	while ((__comp = (cmp)(elm, (head)->sph_root)) != 0) {		\
+		if (__comp < 0) {					\
+			__tmp = SPLAY_LEFT((head)->sph_root, field);	\
+			if (__tmp == NULL)				\
+				break;					\
+			if ((cmp)(elm, __tmp) < 0){			\
+				SPLAY_ROTATE_RIGHT(head, __tmp, field);	\
+				if (SPLAY_LEFT((head)->sph_root, field) == NULL)\
+					break;				\
+			}						\
+			SPLAY_LINKLEFT(head, __right, field);		\
+		} else if (__comp > 0) {				\
+			__tmp = SPLAY_RIGHT((head)->sph_root, field);	\
+			if (__tmp == NULL)				\
+				break;					\
+			if ((cmp)(elm, __tmp) > 0){			\
+				SPLAY_ROTATE_LEFT(head, __tmp, field);	\
+				if (SPLAY_RIGHT((head)->sph_root, field) == NULL)\
+					break;				\
+			}						\
+			SPLAY_LINKRIGHT(head, __left, field);		\
+		}							\
+	}								\
+	SPLAY_ASSEMBLE(head, &__node, __left, __right, field);		\
+}									\
+									\
+/* Splay with either the minimum or the maximum element			\
+ * Used to find minimum or maximum element in tree.			\
+ */									\
+void name##_SPLAY_MINMAX(struct name *head, int __comp) \
+{									\
+	struct type __node, *__left, *__right, *__tmp;			\
+\
+	SPLAY_LEFT(&__node, field) = SPLAY_RIGHT(&__node, field) = NULL;\
+	__left = __right = &__node;					\
+\
+	while (1) {							\
+		if (__comp < 0) {					\
+			__tmp = SPLAY_LEFT((head)->sph_root, field);	\
+			if (__tmp == NULL)				\
+				break;					\
+			if (__comp < 0){				\
+				SPLAY_ROTATE_RIGHT(head, __tmp, field);	\
+				if (SPLAY_LEFT((head)->sph_root, field) == NULL)\
+					break;				\
+			}						\
+			SPLAY_LINKLEFT(head, __right, field);		\
+		} else if (__comp > 0) {				\
+			__tmp = SPLAY_RIGHT((head)->sph_root, field);	\
+			if (__tmp == NULL)				\
+				break;					\
+			if (__comp > 0) {				\
+				SPLAY_ROTATE_LEFT(head, __tmp, field);	\
+				if (SPLAY_RIGHT((head)->sph_root, field) == NULL)\
+					break;				\
+			}						\
+			SPLAY_LINKRIGHT(head, __left, field);		\
+		}							\
+	}								\
+	SPLAY_ASSEMBLE(head, &__node, __left, __right, field);		\
+}
+
+#define SPLAY_NEGINF	-1
+#define SPLAY_INF	1
+
+#define SPLAY_INSERT(name, x, y)	name##_SPLAY_INSERT(x, y)
+#define SPLAY_REMOVE(name, x, y)	name##_SPLAY_REMOVE(x, y)
+#define SPLAY_FIND(name, x, y)		name##_SPLAY_FIND(x, y)
+#define SPLAY_NEXT(name, x, y)		name##_SPLAY_NEXT(x, y)
+#define SPLAY_MIN(name, x)		(SPLAY_EMPTY(x) ? NULL	\
+					: name##_SPLAY_MIN_MAX(x, SPLAY_NEGINF))
+#define SPLAY_MAX(name, x)		(SPLAY_EMPTY(x) ? NULL	\
+					: name##_SPLAY_MIN_MAX(x, SPLAY_INF))
+
+#define SPLAY_FOREACH(x, name, head)					\
+	for ((x) = SPLAY_MIN(name, head);				\
+	     (x) != NULL;						\
+	     (x) = SPLAY_NEXT(name, head, x))
+
+/* Macros that define a red-black tree */
+#define RB_HEAD(name, type)						\
+struct name {								\
+	struct type *rbh_root; /* root of the tree */			\
+}
+
+#define RB_INITIALIZER(root)						\
+	{ NULL }
+
+#define RB_INIT(root) do {						\
+	(root)->rbh_root = NULL;					\
+} while (/*CONSTCOND*/ 0)
+
+#define RB_BLACK	0
+#define RB_RED		1
+#define RB_ENTRY(type)							\
+struct {								\
+	struct type *rbe_left;		/* left element */		\
+	struct type *rbe_right;		/* right element */		\
+	struct type *rbe_parent;	/* parent element */		\
+	int rbe_color;			/* node color */		\
+}
+
+#define RB_LEFT(elm, field)		(elm)->field.rbe_left
+#define RB_RIGHT(elm, field)		(elm)->field.rbe_right
+#define RB_PARENT(elm, field)		(elm)->field.rbe_parent
+#define RB_COLOR(elm, field)		(elm)->field.rbe_color
+#define RB_ROOT(head)			(head)->rbh_root
+#define RB_EMPTY(head)			(RB_ROOT(head) == NULL)
+
+#define RB_SET(elm, parent, field) do {					\
+	RB_PARENT(elm, field) = parent;					\
+	RB_LEFT(elm, field) = RB_RIGHT(elm, field) = NULL;		\
+	RB_COLOR(elm, field) = RB_RED;					\
+} while (/*CONSTCOND*/ 0)
+
+#define RB_SET_BLACKRED(black, red, field) do {				\
+	RB_COLOR(black, field) = RB_BLACK;				\
+	RB_COLOR(red, field) = RB_RED;					\
+} while (/*CONSTCOND*/ 0)
+
+#ifndef RB_AUGMENT
+#define RB_AUGMENT(x)	do {} while (0)
+#endif
+
+#define RB_ROTATE_LEFT(head, elm, tmp, field) do {			\
+	(tmp) = RB_RIGHT(elm, field);					\
+	if ((RB_RIGHT(elm, field) = RB_LEFT(tmp, field)) != NULL) {	\
+		RB_PARENT(RB_LEFT(tmp, field), field) = (elm);		\
+	}								\
+	RB_AUGMENT(elm);						\
+	if ((RB_PARENT(tmp, field) = RB_PARENT(elm, field)) != NULL) {	\
+		if ((elm) == RB_LEFT(RB_PARENT(elm, field), field))	\
+			RB_LEFT(RB_PARENT(elm, field), field) = (tmp);	\
+		else							\
+			RB_RIGHT(RB_PARENT(elm, field), field) = (tmp);	\
+	} else								\
+		(head)->rbh_root = (tmp);				\
+	RB_LEFT(tmp, field) = (elm);					\
+	RB_PARENT(elm, field) = (tmp);					\
+	RB_AUGMENT(tmp);						\
+	if ((RB_PARENT(tmp, field)))					\
+		RB_AUGMENT(RB_PARENT(tmp, field));			\
+} while (/*CONSTCOND*/ 0)
+
+#define RB_ROTATE_RIGHT(head, elm, tmp, field) do {			\
+	(tmp) = RB_LEFT(elm, field);					\
+	if ((RB_LEFT(elm, field) = RB_RIGHT(tmp, field)) != NULL) {	\
+		RB_PARENT(RB_RIGHT(tmp, field), field) = (elm);		\
+	}								\
+	RB_AUGMENT(elm);						\
+	if ((RB_PARENT(tmp, field) = RB_PARENT(elm, field)) != NULL) {	\
+		if ((elm) == RB_LEFT(RB_PARENT(elm, field), field))	\
+			RB_LEFT(RB_PARENT(elm, field), field) = (tmp);	\
+		else							\
+			RB_RIGHT(RB_PARENT(elm, field), field) = (tmp);	\
+	} else								\
+		(head)->rbh_root = (tmp);				\
+	RB_RIGHT(tmp, field) = (elm);					\
+	RB_PARENT(elm, field) = (tmp);					\
+	RB_AUGMENT(tmp);						\
+	if ((RB_PARENT(tmp, field)))					\
+		RB_AUGMENT(RB_PARENT(tmp, field));			\
+} while (/*CONSTCOND*/ 0)
+
+/* Generates prototypes and inline functions */
+#define	RB_PROTOTYPE(name, type, field, cmp)				\
+	RB_PROTOTYPE_INTERNAL(name, type, field, cmp,)
+#define	RB_PROTOTYPE_STATIC(name, type, field, cmp)			\
+	RB_PROTOTYPE_INTERNAL(name, type, field, cmp, __unused static)
+#define RB_PROTOTYPE_INTERNAL(name, type, field, cmp, attr)		\
+attr void name##_RB_INSERT_COLOR(struct name *, struct type *);		\
+attr void name##_RB_REMOVE_COLOR(struct name *, struct type *, struct type *);\
+attr struct type *name##_RB_REMOVE(struct name *, struct type *);	\
+attr struct type *name##_RB_INSERT(struct name *, struct type *);	\
+attr struct type *name##_RB_FIND(struct name *, struct type *);		\
+attr struct type *name##_RB_NFIND(struct name *, struct type *);	\
+attr struct type *name##_RB_NEXT(struct type *);			\
+attr struct type *name##_RB_PREV(struct type *);			\
+attr struct type *name##_RB_MINMAX(struct name *, int);			\
+									\
+
+/* Main rb operation.
+ * Moves node close to the key of elm to top
+ */
+#define	RB_GENERATE(name, type, field, cmp)				\
+	RB_GENERATE_INTERNAL(name, type, field, cmp,)
+#define	RB_GENERATE_STATIC(name, type, field, cmp)			\
+	RB_GENERATE_INTERNAL(name, type, field, cmp, __unused static)
+#define RB_GENERATE_INTERNAL(name, type, field, cmp, attr)		\
+attr void								\
+name##_RB_INSERT_COLOR(struct name *head, struct type *elm)		\
+{									\
+	struct type *parent, *gparent, *tmp;				\
+	while ((parent = RB_PARENT(elm, field)) != NULL &&		\
+	    RB_COLOR(parent, field) == RB_RED) {			\
+		gparent = RB_PARENT(parent, field);			\
+		if (parent == RB_LEFT(gparent, field)) {		\
+			tmp = RB_RIGHT(gparent, field);			\
+			if (tmp && RB_COLOR(tmp, field) == RB_RED) {	\
+				RB_COLOR(tmp, field) = RB_BLACK;	\
+				RB_SET_BLACKRED(parent, gparent, field);\
+				elm = gparent;				\
+				continue;				\
+			}						\
+			if (RB_RIGHT(parent, field) == elm) {		\
+				RB_ROTATE_LEFT(head, parent, tmp, field);\
+				tmp = parent;				\
+				parent = elm;				\
+				elm = tmp;				\
+			}						\
+			RB_SET_BLACKRED(parent, gparent, field);	\
+			RB_ROTATE_RIGHT(head, gparent, tmp, field);	\
+		} else {						\
+			tmp = RB_LEFT(gparent, field);			\
+			if (tmp && RB_COLOR(tmp, field) == RB_RED) {	\
+				RB_COLOR(tmp, field) = RB_BLACK;	\
+				RB_SET_BLACKRED(parent, gparent, field);\
+				elm = gparent;				\
+				continue;				\
+			}						\
+			if (RB_LEFT(parent, field) == elm) {		\
+				RB_ROTATE_RIGHT(head, parent, tmp, field);\
+				tmp = parent;				\
+				parent = elm;				\
+				elm = tmp;				\
+			}						\
+			RB_SET_BLACKRED(parent, gparent, field);	\
+			RB_ROTATE_LEFT(head, gparent, tmp, field);	\
+		}							\
+	}								\
+	RB_COLOR(head->rbh_root, field) = RB_BLACK;			\
+}									\
+									\
+attr void								\
+name##_RB_REMOVE_COLOR(struct name *head, struct type *parent, struct type *elm) \
+{									\
+	struct type *tmp;						\
+	while ((elm == NULL || RB_COLOR(elm, field) == RB_BLACK) &&	\
+	    elm != RB_ROOT(head)) {					\
+		if (RB_LEFT(parent, field) == elm) {			\
+			tmp = RB_RIGHT(parent, field);			\
+			if (RB_COLOR(tmp, field) == RB_RED) {		\
+				RB_SET_BLACKRED(tmp, parent, field);	\
+				RB_ROTATE_LEFT(head, parent, tmp, field);\
+				tmp = RB_RIGHT(parent, field);		\
+			}						\
+			if ((RB_LEFT(tmp, field) == NULL ||		\
+			    RB_COLOR(RB_LEFT(tmp, field), field) == RB_BLACK) &&\
+			    (RB_RIGHT(tmp, field) == NULL ||		\
+			    RB_COLOR(RB_RIGHT(tmp, field), field) == RB_BLACK)) {\
+				RB_COLOR(tmp, field) = RB_RED;		\
+				elm = parent;				\
+				parent = RB_PARENT(elm, field);		\
+			} else {					\
+				if (RB_RIGHT(tmp, field) == NULL ||	\
+				    RB_COLOR(RB_RIGHT(tmp, field), field) == RB_BLACK) {\
+					struct type *oleft;		\
+					if ((oleft = RB_LEFT(tmp, field)) \
+					    != NULL)			\
+						RB_COLOR(oleft, field) = RB_BLACK;\
+					RB_COLOR(tmp, field) = RB_RED;	\
+					RB_ROTATE_RIGHT(head, tmp, oleft, field);\
+					tmp = RB_RIGHT(parent, field);	\
+				}					\
+				RB_COLOR(tmp, field) = RB_COLOR(parent, field);\
+				RB_COLOR(parent, field) = RB_BLACK;	\
+				if (RB_RIGHT(tmp, field))		\
+					RB_COLOR(RB_RIGHT(tmp, field), field) = RB_BLACK;\
+				RB_ROTATE_LEFT(head, parent, tmp, field);\
+				elm = RB_ROOT(head);			\
+				break;					\
+			}						\
+		} else {						\
+			tmp = RB_LEFT(parent, field);			\
+			if (RB_COLOR(tmp, field) == RB_RED) {		\
+				RB_SET_BLACKRED(tmp, parent, field);	\
+				RB_ROTATE_RIGHT(head, parent, tmp, field);\
+				tmp = RB_LEFT(parent, field);		\
+			}						\
+			if ((RB_LEFT(tmp, field) == NULL ||		\
+			    RB_COLOR(RB_LEFT(tmp, field), field) == RB_BLACK) &&\
+			    (RB_RIGHT(tmp, field) == NULL ||		\
+			    RB_COLOR(RB_RIGHT(tmp, field), field) == RB_BLACK)) {\
+				RB_COLOR(tmp, field) = RB_RED;		\
+				elm = parent;				\
+				parent = RB_PARENT(elm, field);		\
+			} else {					\
+				if (RB_LEFT(tmp, field) == NULL ||	\
+				    RB_COLOR(RB_LEFT(tmp, field), field) == RB_BLACK) {\
+					struct type *oright;		\
+					if ((oright = RB_RIGHT(tmp, field)) \
+					    != NULL)			\
+						RB_COLOR(oright, field) = RB_BLACK;\
+					RB_COLOR(tmp, field) = RB_RED;	\
+					RB_ROTATE_LEFT(head, tmp, oright, field);\
+					tmp = RB_LEFT(parent, field);	\
+				}					\
+				RB_COLOR(tmp, field) = RB_COLOR(parent, field);\
+				RB_COLOR(parent, field) = RB_BLACK;	\
+				if (RB_LEFT(tmp, field))		\
+					RB_COLOR(RB_LEFT(tmp, field), field) = RB_BLACK;\
+				RB_ROTATE_RIGHT(head, parent, tmp, field);\
+				elm = RB_ROOT(head);			\
+				break;					\
+			}						\
+		}							\
+	}								\
+	if (elm)							\
+		RB_COLOR(elm, field) = RB_BLACK;			\
+}									\
+									\
+attr struct type *							\
+name##_RB_REMOVE(struct name *head, struct type *elm)			\
+{									\
+	struct type *child, *parent, *old = elm;			\
+	int color;							\
+	if (RB_LEFT(elm, field) == NULL)				\
+		child = RB_RIGHT(elm, field);				\
+	else if (RB_RIGHT(elm, field) == NULL)				\
+		child = RB_LEFT(elm, field);				\
+	else {								\
+		struct type *left;					\
+		elm = RB_RIGHT(elm, field);				\
+		while ((left = RB_LEFT(elm, field)) != NULL)		\
+			elm = left;					\
+		child = RB_RIGHT(elm, field);				\
+		parent = RB_PARENT(elm, field);				\
+		color = RB_COLOR(elm, field);				\
+		if (child)						\
+			RB_PARENT(child, field) = parent;		\
+		if (parent) {						\
+			if (RB_LEFT(parent, field) == elm)		\
+				RB_LEFT(parent, field) = child;		\
+			else						\
+				RB_RIGHT(parent, field) = child;	\
+			RB_AUGMENT(parent);				\
+		} else							\
+			RB_ROOT(head) = child;				\
+		if (RB_PARENT(elm, field) == old)			\
+			parent = elm;					\
+		(elm)->field = (old)->field;				\
+		if (RB_PARENT(old, field)) {				\
+			if (RB_LEFT(RB_PARENT(old, field), field) == old)\
+				RB_LEFT(RB_PARENT(old, field), field) = elm;\
+			else						\
+				RB_RIGHT(RB_PARENT(old, field), field) = elm;\
+			RB_AUGMENT(RB_PARENT(old, field));		\
+		} else							\
+			RB_ROOT(head) = elm;				\
+		RB_PARENT(RB_LEFT(old, field), field) = elm;		\
+		if (RB_RIGHT(old, field))				\
+			RB_PARENT(RB_RIGHT(old, field), field) = elm;	\
+		if (parent) {						\
+			left = parent;					\
+			do {						\
+				RB_AUGMENT(left);			\
+			} while ((left = RB_PARENT(left, field)) != NULL); \
+		}							\
+		goto color;						\
+	}								\
+	parent = RB_PARENT(elm, field);					\
+	color = RB_COLOR(elm, field);					\
+	if (child)							\
+		RB_PARENT(child, field) = parent;			\
+	if (parent) {							\
+		if (RB_LEFT(parent, field) == elm)			\
+			RB_LEFT(parent, field) = child;			\
+		else							\
+			RB_RIGHT(parent, field) = child;		\
+		RB_AUGMENT(parent);					\
+	} else								\
+		RB_ROOT(head) = child;					\
+color:									\
+	if (color == RB_BLACK)						\
+		name##_RB_REMOVE_COLOR(head, parent, child);		\
+	return (old);							\
+}									\
+									\
+/* Inserts a node into the RB tree */					\
+attr struct type *							\
+name##_RB_INSERT(struct name *head, struct type *elm)			\
+{									\
+	struct type *tmp;						\
+	struct type *parent = NULL;					\
+	int comp = 0;							\
+	tmp = RB_ROOT(head);						\
+	while (tmp) {							\
+		parent = tmp;						\
+		comp = (cmp)(elm, parent);				\
+		if (comp < 0)						\
+			tmp = RB_LEFT(tmp, field);			\
+		else if (comp > 0)					\
+			tmp = RB_RIGHT(tmp, field);			\
+		else							\
+			return (tmp);					\
+	}								\
+	RB_SET(elm, parent, field);					\
+	if (parent != NULL) {						\
+		if (comp < 0)						\
+			RB_LEFT(parent, field) = elm;			\
+		else							\
+			RB_RIGHT(parent, field) = elm;			\
+		RB_AUGMENT(parent);					\
+	} else								\
+		RB_ROOT(head) = elm;					\
+	name##_RB_INSERT_COLOR(head, elm);				\
+	return (NULL);							\
+}									\
+									\
+/* Finds the node with the same key as elm */				\
+attr struct type *							\
+name##_RB_FIND(struct name *head, struct type *elm)			\
+{									\
+	struct type *tmp = RB_ROOT(head);				\
+	int comp;							\
+	while (tmp) {							\
+		comp = cmp(elm, tmp);					\
+		if (comp < 0)						\
+			tmp = RB_LEFT(tmp, field);			\
+		else if (comp > 0)					\
+			tmp = RB_RIGHT(tmp, field);			\
+		else							\
+			return (tmp);					\
+	}								\
+	return (NULL);							\
+}									\
+									\
+/* Finds the first node greater than or equal to the search key */	\
+attr struct type *							\
+name##_RB_NFIND(struct name *head, struct type *elm)			\
+{									\
+	struct type *tmp = RB_ROOT(head);				\
+	struct type *res = NULL;					\
+	int comp;							\
+	while (tmp) {							\
+		comp = cmp(elm, tmp);					\
+		if (comp < 0) {						\
+			res = tmp;					\
+			tmp = RB_LEFT(tmp, field);			\
+		}							\
+		else if (comp > 0)					\
+			tmp = RB_RIGHT(tmp, field);			\
+		else							\
+			return (tmp);					\
+	}								\
+	return (res);							\
+}									\
+									\
+/* ARGSUSED */								\
+attr struct type *							\
+name##_RB_NEXT(struct type *elm)					\
+{									\
+	if (RB_RIGHT(elm, field)) {					\
+		elm = RB_RIGHT(elm, field);				\
+		while (RB_LEFT(elm, field))				\
+			elm = RB_LEFT(elm, field);			\
+	} else {							\
+		if (RB_PARENT(elm, field) &&				\
+		    (elm == RB_LEFT(RB_PARENT(elm, field), field)))	\
+			elm = RB_PARENT(elm, field);			\
+		else {							\
+			while (RB_PARENT(elm, field) &&			\
+			    (elm == RB_RIGHT(RB_PARENT(elm, field), field)))\
+				elm = RB_PARENT(elm, field);		\
+			elm = RB_PARENT(elm, field);			\
+		}							\
+	}								\
+	return (elm);							\
+}									\
+									\
+/* ARGSUSED */								\
+attr struct type *							\
+name##_RB_PREV(struct type *elm)					\
+{									\
+	if (RB_LEFT(elm, field)) {					\
+		elm = RB_LEFT(elm, field);				\
+		while (RB_RIGHT(elm, field))				\
+			elm = RB_RIGHT(elm, field);			\
+	} else {							\
+		if (RB_PARENT(elm, field) &&				\
+		    (elm == RB_RIGHT(RB_PARENT(elm, field), field)))	\
+			elm = RB_PARENT(elm, field);			\
+		else {							\
+			while (RB_PARENT(elm, field) &&			\
+			    (elm == RB_LEFT(RB_PARENT(elm, field), field)))\
+				elm = RB_PARENT(elm, field);		\
+			elm = RB_PARENT(elm, field);			\
+		}							\
+	}								\
+	return (elm);							\
+}									\
+									\
+attr struct type *							\
+name##_RB_MINMAX(struct name *head, int val)				\
+{									\
+	struct type *tmp = RB_ROOT(head);				\
+	struct type *parent = NULL;					\
+	while (tmp) {							\
+		parent = tmp;						\
+		if (val < 0)						\
+			tmp = RB_LEFT(tmp, field);			\
+		else							\
+			tmp = RB_RIGHT(tmp, field);			\
+	}								\
+	return (parent);						\
+}
+
+#define RB_NEGINF	-1
+#define RB_INF	1
+
+#define RB_INSERT(name, x, y)	name##_RB_INSERT(x, y)
+#define RB_REMOVE(name, x, y)	name##_RB_REMOVE(x, y)
+#define RB_FIND(name, x, y)	name##_RB_FIND(x, y)
+#define RB_NFIND(name, x, y)	name##_RB_NFIND(x, y)
+#define RB_NEXT(name, x, y)	name##_RB_NEXT(y)
+#define RB_PREV(name, x, y)	name##_RB_PREV(y)
+#define RB_MIN(name, x)		name##_RB_MINMAX(x, RB_NEGINF)
+#define RB_MAX(name, x)		name##_RB_MINMAX(x, RB_INF)
+
+#define RB_FOREACH(x, name, head)					\
+	for ((x) = RB_MIN(name, head);					\
+	     (x) != NULL;						\
+	     (x) = name##_RB_NEXT(x))
+
+#define RB_FOREACH_FROM(x, name, y)					\
+	for ((x) = (y);							\
+	    ((x) != NULL) && ((y) = name##_RB_NEXT(x), (x) != NULL);	\
+	     (x) = (y))
+
+#define RB_FOREACH_SAFE(x, name, head, y)				\
+	for ((x) = RB_MIN(name, head);					\
+	    ((x) != NULL) && ((y) = name##_RB_NEXT(x), (x) != NULL);	\
+	     (x) = (y))
+
+#define RB_FOREACH_REVERSE(x, name, head)				\
+	for ((x) = RB_MAX(name, head);					\
+	     (x) != NULL;						\
+	     (x) = name##_RB_PREV(x))
+
+#define RB_FOREACH_REVERSE_FROM(x, name, y)				\
+	for ((x) = (y);							\
+	    ((x) != NULL) && ((y) = name##_RB_PREV(x), (x) != NULL);	\
+	     (x) = (y))
+
+#define RB_FOREACH_REVERSE_SAFE(x, name, head, y)			\
+	for ((x) = RB_MAX(name, head);					\
+	    ((x) != NULL) && ((y) = name##_RB_PREV(x), (x) != NULL);	\
+	     (x) = (y))
+
+#endif	/* _SYS_TREE_H_ */

include/bsd/unistd.h

@@ -0,0 +1,64 @@
+/*
+ * Copyright © 2006 Robert Millan
+ * Copyright © 2008-2011 Guillem Jover <guillem@hadrons.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef LIBBSD_OVERLAY
+#include_next <unistd.h>
+#else
+#include <unistd.h>
+#endif
+
+#ifndef LIBBSD_UNISTD_H
+#define LIBBSD_UNISTD_H
+
+#include <sys/cdefs.h>
+#include <sys/stat.h>
+
+#ifndef S_ISTXT
+#define S_ISTXT S_ISVTX
+#endif
+
+__BEGIN_DECLS
+extern int optreset;
+
+#ifdef LIBBSD_OVERLAY
+#undef getopt
+#define getopt(argc, argv, optstr) bsd_getopt(argc, argv, optstr)
+#endif
+
+int bsd_getopt(int argc, char * const argv[], const char *shortopts);
+
+mode_t getmode(const void *set, mode_t mode);
+void *setmode(const char *mode_str);
+
+void closefrom(int lowfd);
+
+void setproctitle(const char *fmt, ...);
+
+int getpeereid(int s, uid_t *euid, gid_t *egid);
+__END_DECLS
+
+#endif

include/bsd/vis.h

@@ -78,8 +78,10 @@ __BEGIN_DECLS
 char	*vis(char *, int, int, int);
 int	strvis(char *, const char *, int);
 int	strvisx(char *, const char *, size_t, int);
+int	strnvis(char *, const char *, size_t, int);
 int	strunvis(char *, const char *);
 int	strunvisx(char *, const char *, int);
+ssize_t strnunvis(char *, const char *, size_t);
 int	unvis(char *, int, int *, int);
 __END_DECLS
 

man/.gitignore

@@ -1 +1,2 @@
 md5.3
+md5.3bsd

man/Makefile.am

@@ -0,0 +1,53 @@
+## Process this file with automake to produce Makefile.in
+
+EXTRA_DIST = \
+	mdX.3bsd \
+	$(nil)
+
+CLEANFILES = \
+	md5.3bsd \
+	$(nil)
+
+SED_MD5_SUBST = -e 's/mdX/md5/g' -e 's/mdY/md4/g' -e 's/MDX/MD5/g'
+
+md5.3bsd: $(srcdir)/mdX.3bsd
+	$(AM_V_GEN) sed $(SED_MD5_SUBST) $< > $@
+
+dist_man_MANS = \
+	arc4random.3 \
+	arc4random_addrandom.3 \
+	arc4random_buf.3 \
+	arc4random_stir.3 \
+	arc4random_uniform.3 \
+	bitstring.3 \
+	closefrom.3 \
+	dehumanize_number.3 \
+	expand_number.3 \
+	fgetln.3 \
+	flopen.3 \
+	fmtcheck.3 \
+	getmode.3 \
+	getpeereid.3 \
+	getprogname.3 \
+	heapsort.3 \
+	humanize_number.3 \
+	md5.3bsd \
+	mergesort.3 \
+	nlist.3 \
+	pidfile.3 \
+	queue.3bsd \
+	radixsort.3 \
+	readpassphrase.3 \
+	reallocf.3 \
+	setmode.3 \
+	setproctitle.3 \
+	setprogname.3 \
+	sradixsort.3 \
+	strlcat.3 \
+	strlcpy.3 \
+	strmode.3 \
+	strtonum.3 \
+	tree.3 \
+	unvis.3 \
+	vis.3 \
+	$(nil)

man/arc4random.3

@@ -28,23 +28,30 @@
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
 .\" Manual page, using -mandoc macros
-.\" $FreeBSD: /repoman/r/ncvs/src/lib/libc/gen/arc4random.3,v 1.16 2003/07/31 06:18:24 das Exp $
+.\" $FreeBSD$
 .\"
 .Dd April 15, 1997
 .Dt ARC4RANDOM 3
 .Os
 .Sh NAME
 .Nm arc4random ,
+.Nm arc4random_buf ,
+.Nm arc4random_uniform ,
 .Nm arc4random_stir ,
 .Nm arc4random_addrandom
 .Nd arc4 random number generator
 .Sh LIBRARY
-.Lb libc
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
 .Sh SYNOPSIS
-.In stdlib.h
+.In bsd/stdlib.h
 .Ft u_int32_t
 .Fn arc4random "void"
 .Ft void
+.Fn arc4random_buf "void *buf" "size_t nbytes"
+.Ft u_int32_t
+.Fn arc4random_uniform "u_int32_t upper_bound"
+.Ft void
 .Fn arc4random_stir "void"
 .Ft void
 .Fn arc4random_addrandom "unsigned char *dat" "int datlen"
@@ -68,6 +75,21 @@ and therefore has twice the range of
 and
 .Xr random 3 .
 .Pp
+.Fn arc4random_buf
+function fills the region
+.Fa buf
+of length
+.Fa nbytes
+with ARC4-derived random data.
+.Pp
+.Fn arc4random_uniform
+will return a uniformly distributed random number less than
+.Fa upper_bound .
+.Fn arc4random_uniform
+is recommended over constructions like
+.Dq Li arc4random() % upper_bound
+as it avoids "modulo bias" when the upper bound is not a power of two.
+.Pp
 The
 .Fn arc4random_stir
 function reads data from
@@ -78,10 +100,9 @@ and uses it to permute the S-Boxes via
 There is no need to call
 .Fn arc4random_stir
 before using
-.Fn arc4random ,
-since
 .Fn arc4random
-automatically initializes itself.
+functions family, since
+they automatically initialize themselves.
 .Sh EXAMPLES
 The following produces a drop-in replacement for the traditional
 .Fn rand

man/arc4random_addrandom.3

@@ -0,0 +1 @@
+.so man3/arc4random.3

man/arc4random_buf.3

@@ -0,0 +1 @@
+.so man3/arc4random.3

man/arc4random_stir.3

@@ -0,0 +1 @@
+.so man3/arc4random.3

man/arc4random_uniform.3

@@ -0,0 +1 @@
+.so man3/arc4random.3

man/bitstring.3

@@ -0,0 +1,186 @@
+.\" Copyright (c) 1989, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Paul Vixie.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)bitstring.3	8.1 (Berkeley) 7/19/93
+.\" $FreeBSD$
+.\"
+.Dd July 19, 1993
+.Dt BITSTRING 3
+.Os
+.Sh NAME
+.Nm bit_alloc ,
+.Nm bit_clear ,
+.Nm bit_decl ,
+.Nm bit_ffs ,
+.Nm bit_nclear ,
+.Nm bit_nset ,
+.Nm bit_set ,
+.Nm bitstr_size ,
+.Nm bit_test
+.Nd bit-string manipulation macros
+.Sh SYNOPSIS
+.In bsd/bitstring.h
+.Ft bitstr_t *
+.Fn bit_alloc "int nbits"
+.Ft void
+.Fn bit_decl "bitstr_t *name" "int nbits"
+.Ft void
+.Fn bit_clear "bitstr_t *name" "int bit"
+.Ft void
+.Fn bit_ffc "bitstr_t *name" "int nbits" "int *value"
+.Ft void
+.Fn bit_ffs "bitstr_t *name" "int nbits" "int *value"
+.Ft void
+.Fn bit_nclear "bitstr_t *name" "int start" "int stop"
+.Ft void
+.Fn bit_nset "bitstr_t *name" "int start" "int stop"
+.Ft void
+.Fn bit_set "bitstr_t *name" "int bit"
+.Ft int
+.Fn bitstr_size "int nbits"
+.Ft int
+.Fn bit_test "bitstr_t *name" "int bit"
+.Sh DESCRIPTION
+These macros operate on strings of bits.
+.Pp
+The macro
+.Fn bit_alloc
+returns a pointer of type
+.Dq Fa "bitstr_t *"
+to sufficient space to store
+.Fa nbits
+bits, or
+.Dv NULL
+if no space is available.
+.Pp
+The macro
+.Fn bit_decl
+allocates sufficient space to store
+.Fa nbits
+bits on the stack.
+.Pp
+The macro
+.Fn bitstr_size
+returns the number of elements of type
+.Fa bitstr_t
+necessary to store
+.Fa nbits
+bits.
+This is useful for copying bit strings.
+.Pp
+The macros
+.Fn bit_clear
+and
+.Fn bit_set
+clear or set the zero-based numbered bit
+.Fa bit ,
+in the bit string
+.Ar name .
+.Pp
+The
+.Fn bit_nset
+and
+.Fn bit_nclear
+macros
+set or clear the zero-based numbered bits from
+.Fa start
+through
+.Fa stop
+in the bit string
+.Ar name .
+.Pp
+The
+.Fn bit_test
+macro
+evaluates to non-zero if the zero-based numbered bit
+.Fa bit
+of bit string
+.Fa name
+is set, and zero otherwise.
+.Pp
+The
+.Fn bit_ffs
+macro
+stores in the location referenced by
+.Fa value
+the zero-based number of the first bit set in the array of
+.Fa nbits
+bits referenced by
+.Fa name .
+If no bits are set, the location referenced by
+.Fa value
+is set to \-1.
+.Pp
+The macro
+.Fn bit_ffc
+stores in the location referenced by
+.Fa value
+the zero-based number of the first bit not set in the array of
+.Fa nbits
+bits referenced by
+.Fa name .
+If all bits are set, the location referenced by
+.Fa value
+is set to \-1.
+.Pp
+The arguments to these macros are evaluated only once and may safely
+have side effects.
+.Sh EXAMPLES
+.Bd -literal -offset indent
+#include <limits.h>
+#include <bsd/bitstring.h>
+
+\&...
+#define	LPR_BUSY_BIT		0
+#define	LPR_FORMAT_BIT		1
+#define	LPR_DOWNLOAD_BIT	2
+\&...
+#define	LPR_AVAILABLE_BIT	9
+#define	LPR_MAX_BITS		10
+
+make_lpr_available()
+{
+	bitstr_t bit_decl(bitlist, LPR_MAX_BITS);
+	...
+	bit_nclear(bitlist, 0, LPR_MAX_BITS - 1);
+	...
+	if (!bit_test(bitlist, LPR_BUSY_BIT)) {
+		bit_clear(bitlist, LPR_FORMAT_BIT);
+		bit_clear(bitlist, LPR_DOWNLOAD_BIT);
+		bit_set(bitlist, LPR_AVAILABLE_BIT);
+	}
+}
+.Ed
+.Sh SEE ALSO
+.Xr malloc 3
+.Sh HISTORY
+The
+.Nm bitstring
+functions first appeared in
+.Bx 4.4 .

man/closefrom.3

@@ -0,0 +1,54 @@
+.\" Copyright (c) 2009 Advanced Computing Technologies LLC
+.\" Written by: John H. Baldwin <jhb@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd June 12, 2009
+.Dt CLOSEFROM 3
+.Os
+.Sh NAME
+.Nm closefrom
+.Nd delete open file descriptors
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
+.Sh SYNOPSIS
+.In bsd/unistd.h
+.Ft void
+.Fn closefrom "int lowfd"
+.Sh DESCRIPTION
+The
+.Fn closefrom
+system call deletes all open file descriptors greater than or equal to
+.Fa lowfd
+from the per-process object reference table.
+Any errors encountered while closing file descriptors are ignored.
+.Sh SEE ALSO
+.Xr close 2
+.Sh HISTORY
+The
+.Fn closefrom
+function first appeared in
+.Fx 8.0 .

man/dehumanize_number.3

@@ -0,0 +1 @@
+.so man3/humanize_number.3

man/expand_number.3

@@ -0,0 +1,87 @@
+.\" Copyright (c) 2007 Eric Anderson <anderson@FreeBSD.org>
+.\" Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd August 15, 2010
+.Dt EXPAND_NUMBER 3
+.Os
+.Sh NAME
+.Nm expand_number
+.Nd format a number from human readable form
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
+.Sh SYNOPSIS
+.In bsd/libutil.h
+.Ft int
+.Fo expand_number
+.Fa "const char *buf" "uint64_t *num"
+.Fc
+.Sh DESCRIPTION
+The
+.Fn expand_number
+function unformats the
+.Fa buf
+string and stores a unsigned 64-bit quantity at address pointed out by the
+.Fa num
+argument.
+.Pp
+The
+.Fn expand_number
+function
+follows the SI power of two convention.
+.Pp
+The prefixes are:
+.Bl -column "Prefix" "Description" "1000000000000000000" -offset indent
+.It Sy "Prefix" Ta Sy "Description" Ta Sy "Multiplier"
+.It Li k Ta No kilo Ta 1024
+.It Li M Ta No mega Ta 1048576
+.It Li G Ta No giga Ta 1073741824
+.It Li T Ta No tera Ta 1099511627776
+.It Li P Ta No peta Ta 1125899906842624
+.It Li E Ta No exa  Ta 1152921504606846976
+.El
+.Sh RETURN VALUES
+.Rv -std
+.Sh ERRORS
+The
+.Fn expand_number
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The given string contains no digits.
+.It Bq Er EINVAL
+An unrecognized prefix was given.
+.It Bq Er ERANGE
+Result doesn't fit into 64 bits.
+.El
+.Sh SEE ALSO
+.Xr humanize_number 3
+.Sh HISTORY
+The
+.Fn expand_number
+function first appeared in
+.Fx 6.3 .

man/fgetln.3

@@ -35,9 +35,10 @@
 .Nm fgetln
 .Nd get a line from a stream
 .Sh LIBRARY
-.Lb libc
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
 .Sh SYNOPSIS
-.In stdio.h
+.In bsd/stdio.h
 .Ft char *
 .Fn fgetln "FILE *stream" "size_t *len"
 .Sh DESCRIPTION
@@ -54,7 +55,7 @@ character.
 The length of the line, including the final newline,
 is stored in the memory location to which
 .Fa len
-points.
+points and is guaranteed to be greater than 0 upon successful completion.
 (Note, however, that if the line is the last
 in a file that does not end in a newline,
 the returned text will not contain a newline.)

man/flopen.3

@@ -0,0 +1,102 @@
+.\"-
+.\" Copyright (c) 2007 Dag-Erling Co<43>dan Sm<53>rgrav
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd June 6, 2009
+.Dt FLOPEN 3
+.Os
+.Sh NAME
+.Nm flopen
+.Nd reliably open and lock a file
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
+.Sh SYNOPSIS
+.In sys/fcntl.h
+.In bsd/libutil.h
+.Ft int
+.Fn flopen "const char *path" "int flags"
+.Ft int
+.Fn flopen "const char *path" "int flags" "mode_t mode"
+.Sh DESCRIPTION
+The
+.Fn flopen
+function opens or creates a file and acquires an exclusive lock on it.
+It is essentially equivalent with calling
+.Fn open
+with the same parameters followed by
+.Fn flock
+with an
+.Va operation
+argument of
+.Dv LOCK_EX ,
+except that
+.Fn flopen
+will attempt to detect and handle races that may occur between opening
+/ creating the file and locking it.
+Thus, it is well suited for opening lock files, PID files, spool
+files, mailboxes and other kinds of files which are used for
+synchronization between processes.
+.Pp
+If
+.Va flags
+includes
+.Dv O_NONBLOCK
+and the file is already locked,
+.Fn flopen
+will fail and set
+.Va errno
+to
+.Dv EWOULDBLOCK .
+.Pp
+As with
+.Fn open ,
+the additional
+.Va mode
+argument is required if
+.Va flags
+includes
+.Dv O_CREAT .
+.Sh RETURN VALUES
+If successful,
+.Fn flopen
+returns a valid file descriptor.
+Otherwise, it returns -1, and sets
+.Va errno
+as described in
+.Xr flock 2
+and
+.Xr open 2 .
+.Sh SEE ALSO
+.Xr errno 2 ,
+.Xr flock 2 ,
+.Xr open 2
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+function and this manual page were written by
+.An Dag-Erling Sm\(/orgrav Aq des@FreeBSD.org .

man/fmtcheck.3

@@ -34,9 +34,10 @@
 .Xr printf 3 Ns -style
 format string
 .Sh LIBRARY
-.Lb libc
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
 .Sh SYNOPSIS
-.In stdio.h
+.In bsd/stdio.h
 .Ft const char *
 .Fn fmtcheck "const char *fmt_suspect" "const char *fmt_default"
 .Sh DESCRIPTION

man/getmode.3

@@ -0,0 +1 @@
+.so man3/setmode.3

man/getpeereid.3

@@ -0,0 +1,138 @@
+.\"
+.\" Copyright (c) 2001 Dima Dorfman.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd July 15, 2001
+.Dt GETPEEREID 3
+.Os
+.Sh NAME
+.Nm getpeereid
+.Nd get the effective credentials of a UNIX-domain peer
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
+.Sh SYNOPSIS
+.In sys/types.h
+.In bsd/unistd.h
+.Ft int
+.Fn getpeereid "int s" "uid_t *euid" "gid_t *egid"
+.Sh DESCRIPTION
+The
+.Fn getpeereid
+function returns the effective user and group IDs of the
+peer connected to a
+.Ux Ns -domain
+socket.
+The argument
+.Fa s
+must be a
+.Ux Ns -domain
+socket
+.Pq Xr unix 4
+of type
+.Dv SOCK_STREAM
+on which either
+.Xr connect 2
+or
+.Xr listen 2
+have been called.
+The effective used ID is placed in
+.Fa euid ,
+and the effective group ID in
+.Fa egid .
+.Pp
+The credentials returned to the
+.Xr listen 2
+caller are those of its peer at the time it called
+.Xr connect 2 ;
+the credentials returned to the
+.Xr connect 2
+caller are those of its peer at the time it called
+.Xr listen 2 .
+This mechanism is reliable; there is no way for either side to influence
+the credentials returned to its peer except by calling the appropriate
+system call (i.e., either
+.Xr connect 2
+or
+.Xr listen 2 )
+under different effective credentials.
+.Pp
+One common use of this routine is for a
+.Ux Ns -domain
+server
+to verify the credentials of its client.
+Likewise, the client can verify the credentials of the server.
+.Sh IMPLEMENTATION NOTES
+On
+.Fx ,
+.Fn getpeereid
+is implemented in terms of the
+.Dv LOCAL_PEERCRED
+.Xr unix 4
+socket option.
+.Sh RETURN VALUES
+.Rv -std getpeereid
+.Sh ERRORS
+The
+.Fn getpeereid
+function
+fails if:
+.Bl -tag -width Er
+.It Bq Er EBADF
+The argument
+.Fa s
+is not a valid descriptor.
+.It Bq Er ENOTSOCK
+The argument
+.Fa s
+is a file, not a socket.
+.It Bq Er ENOTCONN
+The argument
+.Fa s
+does not refer to a socket on which
+.Xr connect 2
+or
+.Xr listen 2
+have been called.
+.It Bq Er EINVAL
+The argument
+.Fa s
+does not refer to a socket of type
+.Dv SOCK_STREAM ,
+or the kernel returned invalid data.
+.El
+.Sh SEE ALSO
+.Xr connect 2 ,
+.Xr getpeername 2 ,
+.Xr getsockname 2 ,
+.Xr getsockopt 2 ,
+.Xr listen 2 ,
+.Xr unix 4
+.Sh HISTORY
+The
+.Fn getpeereid
+function appeared in
+.Fx 4.6 .

man/getprogname.3

@@ -0,0 +1,95 @@
+.\"
+.\" Copyright (c) 2001 Christopher G. Demetriou
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"          This product includes software developed for the
+.\"          NetBSD Project.  See http://www.netbsd.org/ for
+.\"          information about NetBSD.
+.\" 4. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd May 1, 2001
+.Dt GETPROGNAME 3
+.Os
+.Sh NAME
+.Nm getprogname ,
+.Nm setprogname
+.Nd get or set the program name
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
+.Sh SYNOPSIS
+.In bsd/stdlib.h
+.Ft const char *
+.Fn getprogname "void"
+.Ft void
+.Fn setprogname "const char *progname"
+.Sh DESCRIPTION
+The
+.Fn getprogname
+and
+.Fn setprogname
+functions manipulate the name of the current program.
+They are used by error-reporting routines to produce
+consistent output.
+.Pp
+The
+.Fn getprogname
+function returns the name of the program.
+If the name has not been set yet, it will return
+.Dv NULL .
+.Pp
+The
+.Fn setprogname
+function sets the name of the program to be the last component of the
+.Fa progname
+argument.
+Since a pointer to the given string is kept as the program name,
+it should not be modified for the rest of the program's lifetime.
+.Pp
+In
+.Fx ,
+the name of the program is set by the start-up code that is run before
+.Fn main ;
+thus,
+running
+.Fn setprogname
+is not necessary.
+Programs that desire maximum portability should still call it;
+on another operating system,
+these functions may be implemented in a portability library.
+Calling
+.Fn setprogname
+allows the aforementioned library to learn the program name without
+modifications to the start-up code.
+.Sh SEE ALSO
+.Xr err 3 ,
+.Xr setproctitle 3
+.Sh HISTORY
+These functions first appeared in
+.Nx 1.6 ,
+and made their way into
+.Fx 4.4 .

man/heapsort.3

@@ -0,0 +1,208 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)qsort.3	8.1 (Berkeley) 6/4/93
+.\" $FreeBSD$
+.\"
+.Dd September 30, 2003
+.Dt QSORT 3
+.Os
+.Sh NAME
+.Nm heapsort , mergesort
+.Nd sort functions
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
+.Sh SYNOPSIS
+.In bsd/stdlib.h
+.Ft int
+.Fo heapsort
+.Fa "void *base"
+.Fa "size_t nmemb"
+.Fa "size_t size"
+.Fa "int \*[lp]*compar\*[rp]\*[lp]const void *, const void *\*[rp]"
+.Fc
+.Ft int
+.Fo mergesort
+.Fa "void *base"
+.Fa "size_t nmemb"
+.Fa "size_t size"
+.Fa "int \*[lp]*compar\*[rp]\*[lp]const void *, const void *\*[rp]"
+.Fc
+.Sh DESCRIPTION
+The
+.Fn heapsort
+function is a modified selection sort.
+The
+.Fn mergesort
+function is a modified merge sort with exponential search
+intended for sorting data with pre-existing order.
+.Pp
+The
+.Fn heapsort
+function sorts an array of
+.Fa nmemb
+objects, the initial member of which is pointed to by
+.Fa base .
+The size of each object is specified by
+.Fa size .
+The
+.Fn mergesort
+function
+behaves similarly, but
+.Em requires
+that
+.Fa size
+be greater than
+.Dq "sizeof(void *) / 2" .
+.Pp
+The contents of the array
+.Fa base
+are sorted in ascending order according to
+a comparison function pointed to by
+.Fa compar ,
+which requires two arguments pointing to the objects being
+compared.
+.Pp
+The comparison function must return an integer less than, equal to, or
+greater than zero if the first argument is considered to be respectively
+less than, equal to, or greater than the second.
+.Pp
+The algorithm implemented by
+.Fn heapsort
+is
+.Em not
+stable, that is, if two members compare as equal, their order in
+the sorted array is undefined.
+The
+.Fn mergesort
+algorithm is stable.
+.Pp
+The
+.Fn heapsort
+function is an implementation of
+.An "J.W.J. William" Ns 's
+.Dq heapsort
+algorithm,
+a variant of selection sorting; in particular, see
+.An "D.E. Knuth" Ns 's
+.%T "Algorithm H" .
+.Sy Heapsort
+takes O N lg N worst-case time.
+Its
+.Em only
+advantage over
+.Fn qsort
+is that it uses almost no additional memory; while
+.Fn qsort
+does not allocate memory, it is implemented using recursion.
+.Pp
+The function
+.Fn mergesort
+requires additional memory of size
+.Fa nmemb *
+.Fa size
+bytes; it should be used only when space is not at a premium.
+The
+.Fn mergesort
+function
+is optimized for data with pre-existing order; its worst case
+time is O N lg N; its best case is O N.
+.Pp
+Normally,
+.Fn qsort
+is faster than
+.Fn mergesort
+is faster than
+.Fn heapsort .
+Memory availability and pre-existing order in the data can make this
+untrue.
+.Sh RETURN VALUES
+.Rv -std heapsort mergesort
+.Sh ERRORS
+The
+.Fn heapsort
+and
+.Fn mergesort
+functions succeed unless:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The
+.Fa size
+argument is zero, or,
+the
+.Fa size
+argument to
+.Fn mergesort
+is less than
+.Dq "sizeof(void *) / 2" .
+.It Bq Er ENOMEM
+The
+.Fn heapsort
+or
+.Fn mergesort
+functions
+were unable to allocate memory.
+.El
+.Sh SEE ALSO
+.Xr sort 1 ,
+.Xr radixsort 3
+.Rs
+.%A Williams, J.W.J
+.%D 1964
+.%T "Heapsort"
+.%J "Communications of the ACM"
+.%V 7:1
+.%P pp. 347-348
+.Re
+.Rs
+.%A Knuth, D.E.
+.%D 1968
+.%B "The Art of Computer Programming"
+.%V Vol. 3
+.%T "Sorting and Searching"
+.%P pp. 114-123, 145-149
+.Re
+.Rs
+.%A McIlroy, P.M.
+.%T "Optimistic Sorting and Information Theoretic Complexity"
+.%J "Fourth Annual ACM-SIAM Symposium on Discrete Algorithms"
+.%V January 1992
+.Re
+.Rs
+.%A Bentley, J.L.
+.%A McIlroy, M.D.
+.%T "Engineering a Sort Function"
+.%J "Software--Practice and Experience"
+.%V Vol. 23(11)
+.%P pp. 1249-1265
+.%D November\ 1993
+.Re

man/humanize_number.3

@@ -34,8 +34,11 @@
 .Nm dehumanize_number ,
 .Nm humanize_number
 .Nd format a number into a human readable form and viceversa
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
 .Sh SYNOPSIS
-.In stdlib.h
+.In bsd/stdlib.h
 .Ft int
 .Fn dehumanize_number "const char *str" "int64_t *result"
 .Ft int
@@ -163,4 +166,6 @@ first appeared in
 .Pp
 .Fn dehumanize_number
 first appeared in
+.\" FIXME: This should be in groff, but for now it avoids the warning.
+.ds operating-system-NetBSD-5.0 5.0
 .Nx 5.0 .

man/mdX.3bsd

@@ -10,7 +10,7 @@
 .\" 	$OpenBSD: mdX.3,v 1.9 2004/08/24 20:10:33 millert Exp $
 .\"
 .Dd April 29, 2004
-.Dt MDX 3
+.Dt MDX 3bsd
 .Os
 .Sh NAME
 .Nm MDXInit ,
@@ -23,9 +23,12 @@
 .Nm MDXFileChunk ,
 .Nm MDXData
 .Nd calculate the RSA Data Security, Inc., ``MDX'' message digest
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
 .Sh SYNOPSIS
 .Fd #include <sys/types.h>
-.Fd #include <mdX.h>
+.Fd #include <bsd/mdX.h>
 .Ft void
 .Fn MDXInit "MDX_CTX *context"
 .Ft void

man/mergesort.3

@@ -0,0 +1 @@
+.so man3/heapsort.3

man/nlist.3

@@ -0,0 +1,78 @@
+.\" Copyright (c) 1980, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)nlist.3	8.3 (Berkeley) 4/19/94
+.\" $FreeBSD: /repoman/r/ncvs/src/lib/libc/gen/nlist.3,v 1.7 2001/10/01 16:08:51 ru Exp $
+.\"
+.Dd April 19, 1994
+.Dt NLIST 3
+.Os
+.Sh NAME
+.Nm nlist
+.Nd retrieve symbol table name list from an executable file
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
+.Sh SYNOPSIS
+.In bsd/nlist.h
+.Ft int
+.Fn nlist "const char *filename" "struct nlist *nl"
+.Sh DESCRIPTION
+The
+.Fn nlist
+function
+retrieves name list entries from the symbol table of an
+executable file (see
+.Xr a.out 5 ) .
+The argument
+.Fa \&nl
+is set to reference the
+beginning of the list.
+The list is preened of binary and invalid data;
+if an entry in the
+name list is valid, the
+.Fa n_type
+and
+.Fa n_value
+for the entry are copied into the list
+referenced by
+.Fa \&nl .
+No other data is copied.
+The last entry in the list is always
+.Dv NULL .
+.Sh RETURN VALUES
+The number of invalid entries is returned if successful; otherwise,
+if the file
+.Fa filename
+does not exist or is not executable, the returned value is \-1.
+.Sh SEE ALSO
+.Xr a.out 5
+.Sh HISTORY
+A
+.Fn nlist
+function appeared in
+.At v6 .

man/pidfile.3

@@ -0,0 +1,254 @@
+.\" Copyright (c) 2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd October 20, 2008
+.Dt PIDFILE 3
+.Os
+.Sh NAME
+.Nm pidfile_open ,
+.Nm pidfile_write ,
+.Nm pidfile_close ,
+.Nm pidfile_remove
+.Nd library for PID files handling
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
+.Sh SYNOPSIS
+.In bsd/libutil.h
+.Ft "struct pidfh *"
+.Fn pidfile_open "const char *path" "mode_t mode" "pid_t *pidptr"
+.Ft int
+.Fn pidfile_write "struct pidfh *pfh"
+.Ft int
+.Fn pidfile_close "struct pidfh *pfh"
+.Ft int
+.Fn pidfile_remove "struct pidfh *pfh"
+.Sh DESCRIPTION
+The
+.Nm pidfile
+family of functions allows daemons to handle PID files.
+It uses
+.Xr flopen 3
+to lock a pidfile and detect already running daemons.
+.Pp
+The
+.Fn pidfile_open
+function opens (or creates) a file specified by the
+.Fa path
+argument and locks it.
+If a file can not be locked, a PID of an already running daemon is returned in
+the
+.Fa pidptr
+argument (if it is not
+.Dv NULL ) .
+The function does not write process' PID into the file here, so it can be
+used before
+.Fn fork Ns ing
+and exit with a proper error message when needed.
+If the
+.Fa path
+argument is
+.Dv NULL ,
+.Pa /var/run/ Ns Ao Va progname Ac Ns Pa .pid
+file will be used.
+.Pp
+The
+.Fn pidfile_write
+function writes process' PID into a previously opened file.
+.Pp
+The
+.Fn pidfile_close
+function closes a pidfile.
+It should be used after daemon
+.Fn fork Ns s
+to start a child process.
+.Pp
+The
+.Fn pidfile_remove
+function closes and removes a pidfile.
+.Sh RETURN VALUES
+The
+.Fn pidfile_open
+function returns a valid pointer to a
+.Vt pidfh
+structure on success, or
+.Dv NULL
+if an error occurs.
+If an error occurs,
+.Va errno
+will be set.
+.Pp
+.Rv -std pidfile_write pidfile_close pidfile_remove
+.Sh EXAMPLES
+The following example shows in which order these functions should be used.
+Note that it is safe to pass
+.Dv NULL
+to
+.Fn pidfile_write ,
+.Fn pidfile_remove
+and
+.Fn pidfile_close
+functions.
+.Bd -literal
+struct pidfh *pfh;
+pid_t otherpid, childpid;
+
+pfh = pidfile_open("/var/run/daemon.pid", 0600, &otherpid);
+if (pfh == NULL) {
+	if (errno == EEXIST) {
+		errx(EXIT_FAILURE, "Daemon already running, pid: %jd.",
+		    (intmax_t)otherpid);
+	}
+	/* If we cannot create pidfile from other reasons, only warn. */
+	warn("Cannot open or create pidfile");
+}
+
+if (daemon(0, 0) == -1) {
+	warn("Cannot daemonize");
+	pidfile_remove(pfh);
+	exit(EXIT_FAILURE);
+}
+
+pidfile_write(pfh);
+
+for (;;) {
+	/* Do work. */
+	childpid = fork();
+	switch (childpid) {
+	case -1:
+		syslog(LOG_ERR, "Cannot fork(): %s.", strerror(errno));
+		break;
+	case 0:
+		pidfile_close(pfh);
+		/* Do child work. */
+		break;
+	default:
+		syslog(LOG_INFO, "Child %jd started.", (intmax_t)childpid);
+		break;
+	}
+}
+
+pidfile_remove(pfh);
+exit(EXIT_SUCCESS);
+.Ed
+.Sh ERRORS
+The
+.Fn pidfile_open
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EEXIST
+Some process already holds the lock on the given pidfile, meaning that a
+daemon is already running.
+.It Bq Er ENAMETOOLONG
+Specified pidfile's name is too long.
+.It Bq Er EINVAL
+Some process already holds the lock on the given pidfile, but PID read
+from there is invalid.
+.It Bq Er EAGAIN
+Some process already holds the lock on the given pidfile, but the file
+is truncated.
+Most likely, the existing daemon is writing new PID into
+the file.
+.El
+.Pp
+The
+.Fn pidfile_open
+function may also fail and set
+.Va errno
+for any errors specified for the
+.Xr fstat 2 ,
+.Xr open 2 ,
+and
+.Xr read 2
+calls.
+.Pp
+The
+.Fn pidfile_write
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Improper function use.
+Probably called before
+.Fn pidfile_open .
+.El
+.Pp
+The
+.Fn pidfile_write
+function may also fail and set
+.Va errno
+for any errors specified for the
+.Xr fstat 2 ,
+.Xr ftruncate 2 ,
+and
+.Xr write 2
+calls.
+.Pp
+The
+.Fn pidfile_close
+function may fail and set
+.Va errno
+for any errors specified for the
+.Xr close 2
+and
+.Xr fstat 2
+calls.
+.Pp
+The
+.Fn pidfile_remove
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Improper function use.
+Probably called not from the process which made
+.Fn pidfile_write .
+.El
+.Pp
+The
+.Fn pidfile_remove
+function may also fail and set
+.Va errno
+for any errors specified for the
+.Xr close 2 ,
+.Xr fstat 2 ,
+.Xr write 2 ,
+and
+.Xr unlink 2
+system calls and the
+.Xr flopen 3
+library function.
+.Sh SEE ALSO
+.Xr open 2 ,
+.Xr daemon 3 ,
+.Xr flopen 3
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm pidfile
+functionality is based on ideas from
+.An John-Mark Gurney Aq jmg@FreeBSD.org .
+.Pp
+The code and manual page was written by
+.An Pawel Jakub Dawidek Aq pjd@FreeBSD.org .

man/radixsort.3

@@ -0,0 +1,161 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)radixsort.3	8.2 (Berkeley) 1/27/94
+.\" $FreeBSD$
+.\"
+.Dd January 27, 1994
+.Dt RADIXSORT 3
+.Os
+.Sh NAME
+.Nm radixsort , sradixsort
+.Nd radix sort
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
+.Sh SYNOPSIS
+.In limits.h
+.In bsd/stdlib.h
+.Ft int
+.Fn radixsort "const unsigned char **base" "int nmemb" "const unsigned char *table" "unsigned endbyte"
+.Ft int
+.Fn sradixsort "const unsigned char **base" "int nmemb" "const unsigned char *table" "unsigned endbyte"
+.Sh DESCRIPTION
+The
+.Fn radixsort
+and
+.Fn sradixsort
+functions
+are implementations of radix sort.
+.Pp
+These functions sort an array of pointers to byte strings, the initial
+member of which is referenced by
+.Fa base .
+The byte strings may contain any values; the end of each string
+is denoted by the user-specified value
+.Fa endbyte .
+.Pp
+Applications may specify a sort order by providing the
+.Fa table
+argument.
+If
+.Pf non- Dv NULL ,
+.Fa table
+must reference an array of
+.Dv UCHAR_MAX
++ 1 bytes which contains the sort
+weight of each possible byte value.
+The end-of-string byte must have a sort weight of 0 or 255
+(for sorting in reverse order).
+More than one byte may have the same sort weight.
+The
+.Fa table
+argument
+is useful for applications which wish to sort different characters
+equally, for example, providing a table with the same weights
+for A-Z as for a-z will result in a case-insensitive sort.
+If
+.Fa table
+is NULL, the contents of the array are sorted in ascending order
+according to the
+.Tn ASCII
+order of the byte strings they reference and
+.Fa endbyte
+has a sorting weight of 0.
+.Pp
+The
+.Fn sradixsort
+function is stable, that is, if two elements compare as equal, their
+order in the sorted array is unchanged.
+The
+.Fn sradixsort
+function uses additional memory sufficient to hold
+.Fa nmemb
+pointers.
+.Pp
+The
+.Fn radixsort
+function is not stable, but uses no additional memory.
+.Pp
+These functions are variants of most-significant-byte radix sorting; in
+particular, see
+.An "D.E. Knuth" Ns 's
+.%T "Algorithm R"
+and section 5.2.5, exercise 10.
+They take linear time relative to the number of bytes in the strings.
+.Sh RETURN VALUES
+.Rv -std radixsort
+.Sh ERRORS
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value of the
+.Fa endbyte
+element of
+.Fa table
+is not 0 or 255.
+.El
+.Pp
+Additionally, the
+.Fn sradixsort
+function
+may fail and set
+.Va errno
+for any of the errors specified for the library routine
+.Xr malloc 3 .
+.Sh SEE ALSO
+.Xr sort 1 ,
+.Xr qsort 3
+.Pp
+.Rs
+.%A Knuth, D.E.
+.%D 1968
+.%B "The Art of Computer Programming"
+.%T "Sorting and Searching"
+.%V Vol. 3
+.%P pp. 170-178
+.Re
+.Rs
+.%A Paige, R.
+.%D 1987
+.%T "Three Partition Refinement Algorithms"
+.%J "SIAM J. Comput."
+.%V Vol. 16
+.%N No. 6
+.Re
+.Rs
+.%A McIlroy, P.
+.%D 1993
+.%B "Engineering Radix Sort"
+.%T "Computing Systems"
+.%V Vol. 6:1
+.%P pp. 5-27
+.Re
+.Sh HISTORY
+The
+.Fn radixsort
+function first appeared in
+.Bx 4.4 .

man/readpassphrase.3

@@ -0,0 +1,168 @@
+.\"	$OpenBSD: readpassphrase.3,v 1.16 2005/07/22 03:16:58 jaredy Exp $
+.\"
+.\" Copyright (c) 2000, 2002 Todd C. Miller <Todd.Miller@courtesan.com>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.\" Sponsored in part by the Defense Advanced Research Projects
+.\" Agency (DARPA) and Air Force Research Laboratory, Air Force
+.\" Materiel Command, USAF, under agreement number F39502-99-1-0512.
+.\"
+.Dd $Mdocdate: May 31 2007 $
+.Dt READPASSPHRASE 3
+.Os
+.Sh NAME
+.Nm readpassphrase
+.Nd get a passphrase from the user
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
+.Sh SYNOPSIS
+.Fd #include <bsd/readpassphrase.h>
+.Ft char *
+.Fn readpassphrase "const char *prompt" "char *buf" "size_t bufsiz" "int flags"
+.Sh DESCRIPTION
+The
+.Fn readpassphrase
+function displays a prompt to, and reads in a passphrase from,
+.Pa /dev/tty .
+If this file is inaccessible
+and the
+.Dv RPP_REQUIRE_TTY
+flag is not set,
+.Fn readpassphrase
+displays the prompt on the standard error output and reads from the standard
+input.
+In this case it is generally not possible to turn off echo.
+.Pp
+Up to
+.Fa bufsiz
+- 1 characters (one is for the NUL) are read into the provided buffer
+.Fa buf .
+Any additional
+characters and the terminating newline (or return) character are discarded.
+.Pp
+.Fn readpassphrase
+takes the following optional
+.Fa flags :
+.Bd -literal -offset indent
+RPP_ECHO_OFF		turn off echo (default behavior)
+RPP_ECHO_ON		leave echo on
+RPP_REQUIRE_TTY		fail if there is no tty
+RPP_FORCELOWER		force input to lower case
+RPP_FORCEUPPER		force input to upper case
+RPP_SEVENBIT		strip the high bit from input
+RPP_STDIN		force read of passphrase from stdin
+.Ed
+.Pp
+The calling process should zero the passphrase as soon as possible to
+avoid leaving the cleartext passphrase visible in the process's address
+space.
+.Sh RETURN VALUES
+Upon successful completion,
+.Fn readpassphrase
+returns a pointer to the NUL-terminated passphrase.
+If an error is encountered, the terminal state is restored and
+a null pointer is returned.
+.Sh FILES
+.Bl -tag -width /dev/tty -compact
+.It Pa /dev/tty
+.El
+.Sh EXAMPLES
+The following code fragment will read a passphrase from
+.Pa /dev/tty
+into the buffer
+.Fa passbuf .
+.Bd -literal -offset indent
+char passbuf[1024];
+
+\&...
+
+if (readpassphrase("Response: ", passbuf, sizeof(passbuf),
+    RPP_REQUIRE_TTY) == NULL)
+	errx(1, "unable to read passphrase");
+
+if (compare(transform(passbuf), epass) != 0)
+	errx(1, "bad passphrase");
+
+\&...
+
+memset(passbuf, 0, sizeof(passbuf));
+.Ed
+.Sh ERRORS
+.Bl -tag -width Er
+.It Bq Er EINTR
+The
+.Fn readpassphrase
+function was interrupted by a signal.
+.It Bq Er EINVAL
+The
+.Ar bufsiz
+argument was zero.
+.It Bq Er EIO
+The process is a member of a background process attempting to read
+from its controlling terminal, the process is ignoring or blocking
+the
+.Dv SIGTTIN
+signal, or the process group is orphaned.
+.It Bq Er EMFILE
+The process has already reached its limit for open file descriptors.
+.It Bq Er ENFILE
+The system file table is full.
+.It Bq Er ENOTTY
+There is no controlling terminal and the
+.Dv RPP_REQUIRE_TTY
+flag was specified.
+.El
+.Sh SIGNALS
+.Fn readpassphrase
+will catch the following signals:
+.Bd -literal -offset indent
+SIGALRM		SIGHUP		SIGINT
+SIGPIPE		SIGQUIT		SIGTERM
+SIGTSTP		SIGTTIN		SIGTTOU
+.Ed
+.Pp
+When one of the above signals is intercepted, terminal echo will
+be restored if it had previously been turned off.
+If a signal handler was installed for the signal when
+.Fn readpassphrase
+was called, that handler is then executed.
+If no handler was previously installed for the signal then the
+default action is taken as per
+.Xr sigaction 2 .
+.Pp
+The
+.Dv SIGTSTP ,
+.Dv SIGTTIN ,
+and
+.Dv SIGTTOU
+signals (stop signals generated from keyboard or due to terminal I/O
+from a background process) are treated specially.
+When the process is resumed after it has been stopped,
+.Fn readpassphrase
+will reprint the prompt and the user may then enter a passphrase.
+.Sh SEE ALSO
+.Xr sigaction 2 ,
+.Xr getpass 3
+.Sh STANDARDS
+The
+.Fn readpassphrase
+function is an
+.Ox
+extension and should not be used if portability is desired.
+.Sh HISTORY
+The
+.Fn readpassphrase
+function first appeared in
+.Ox 2.9 .

man/reallocf.3

@@ -0,0 +1,107 @@
+.\" Copyright (c) 1980, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)malloc.3	8.1 (Berkeley) 6/4/93
+.\" $FreeBSD: src/lib/libc/stdlib/malloc.3,v 1.80.2.2.2.1 2010/06/14 02:09:06 kensmith Exp $
+.\"
+.Dd September 26, 2009
+.Dt MALLOC 3
+.Os
+.Sh NAME
+.Nm reallocf
+.Nd general purpose memory allocation functions
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
+.Sh SYNOPSIS
+.In bsd/stdlib.h
+.Ft void *
+.Fn reallocf "void *ptr" "size_t size"
+.Sh DESCRIPTION
+The
+.Fn reallocf
+function changes the size of the previously allocated memory referenced by
+.Fa ptr
+to
+.Fa size
+bytes.
+The contents of the memory are unchanged up to the lesser of the new and
+old sizes.
+If the new size is larger,
+the contents of the newly allocated portion of the memory are undefined.
+Upon success, the memory referenced by
+.Fa ptr
+is freed and a pointer to the newly allocated memory is returned.
+Note that
+.Fn reallocf
+may move the memory allocation, resulting in a different return value than
+.Fa ptr .
+If
+.Fa ptr
+is
+.Dv NULL ,
+the
+.Fn reallocf
+function behaves identically to
+.Fn malloc
+for the specified size.
+Upon failure, when the requested memory cannot be allocated, the passed pointer
+is freed to ease the problems with traditional coding styles for
+.Fn reallocf
+causing memory leaks in libraries.
+.Sh RETURN VALUES
+The
+.Fn reallocf
+function returns a pointer, possibly identical to
+.Fa ptr ,
+to the allocated memory
+if successful; otherwise a
+.Dv NULL
+pointer is returned, and
+.Va errno
+is set to
+.Er ENOMEM
+if the error was the result of an allocation failure.
+The buffer is deallocated in this case.
+.Sh SEE ALSO
+.Xr brk 2 ,
+.Xr mmap 2 ,
+.Xr alloca 3 ,
+.Xr calloc 3 ,
+.Xr free 3 ,
+.Xr malloc 3 ,
+.Xr posix_memalign 3 ,
+.Xr realloc 3 ,
+.Sh HISTORY
+The
+.Fn reallocf
+function first appeared in
+.Fx 3.0 .

man/setmode.3

@@ -36,9 +36,10 @@
 .Nm setmode
 .Nd modify mode bits
 .Sh LIBRARY
-.Lb libc
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
 .Sh SYNOPSIS
-.In unistd.h
+.In bsd/unistd.h
 .Ft mode_t
 .Fn getmode "const void *set" "mode_t mode"
 .Ft void *

man/setproctitle.3

@@ -0,0 +1,124 @@
+.\" Copyright (c) 1995 Peter Wemm <peter@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, is permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice immediately at the beginning of the file, without modification,
+.\"    this list of conditions, and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. This work was done expressly for inclusion into FreeBSD.  Other use
+.\"    is permitted provided this notation is included.
+.\" 4. Absolutely no warranty of function or purpose is made by the author
+.\"    Peter Wemm.
+.\" 5. Modifications may be freely made to this file providing the above
+.\"    conditions are met.
+.\"
+.\" $FreeBSD$
+.\"
+.\" The following requests are required for all man pages.
+.Dd December 16, 1995
+.Dt SETPROCTITLE 3
+.Os
+.Sh NAME
+.Nm setproctitle
+.Nd set process title
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
+.Sh SYNOPSIS
+.In sys/types.h
+.In bsd/unistd.h
+.Ft void
+.Fn setproctitle "const char *fmt" "..."
+.Sh DESCRIPTION
+The
+.Fn setproctitle
+library routine sets the process title that appears on the
+.Xr ps 1
+command.
+.Pp
+The title is set from the executable's name, followed by the
+result of a
+.Xr printf 3
+style expansion of the arguments as specified by the
+.Va fmt
+argument.
+If the
+.Va fmt
+argument begins with a
+.Dq -
+character, the executable's name is skipped.
+.Pp
+If
+.Va fmt
+is NULL, the process title is restored.
+.Sh EXAMPLES
+To set the title on a daemon to indicate its activity:
+.Bd -literal -offset indent
+setproctitle("talking to %s", inet_ntoa(addr));
+.Ed
+.Sh SEE ALSO
+.Xr ps 1 ,
+.Xr w 1 ,
+.Xr kvm 3 ,
+.Xr kvm_getargv 3 ,
+.Xr printf 3
+.Sh STANDARDS
+The
+.Fn setproctitle
+function
+is implicitly non-standard.
+Other methods of causing the
+.Xr ps 1
+command line to change, including copying over the argv[0] string are
+also implicitly non-portable.
+It is preferable to use an operating system
+supplied
+.Fn setproctitle
+if present.
+.Pp
+Unfortunately, it is possible that there are other calling conventions
+to other versions of
+.Fn setproctitle ,
+although none have been found by the author as yet.
+This is believed to be
+the predominant convention.
+.Pp
+It is thought that the implementation is compatible with other systems,
+including
+.Nx
+and
+.Bsx .
+.Sh HISTORY
+The
+.Fn setproctitle
+function
+first appeared in
+.Fx 2.2 .
+Other operating systems have
+similar functions.
+.Sh AUTHORS
+.An -nosplit
+.An Peter Wemm Aq peter@FreeBSD.org
+stole the idea from the
+.Sy "Sendmail 8.7.3"
+source code by
+.An Eric Allman Aq eric@sendmail.org .
+.Sh BUGS
+Never pass a string with user-supplied data as a format without using
+.Ql %s .
+An attacker can put format specifiers in the string to mangle your stack,
+leading to a possible security hole.
+This holds true even if the string was built using a function like
+.Fn snprintf ,
+as the resulting string may still contain user-supplied conversion specifiers
+for later interpolation by
+.Fn setproctitle .
+.Pp
+Always use the proper secure idiom:
+.Pp
+.Dl setproctitle("%s", string);

man/setprogname.3

@@ -0,0 +1 @@
+.so man3/getprogname.3

man/sradixsort.3

@@ -0,0 +1 @@
+.so man3/radixsort.3

man/strlcat.3

@@ -0,0 +1 @@
+.so man3/strlcpy.3

man/strlcpy.3

@@ -1,33 +1,20 @@
-.\" $OpenBSD: strlcpy.3,v 1.5 1999/06/06 15:17:32 aaron Exp $
+.\" $OpenBSD: strlcpy.3,v 1.18 2005/08/06 03:24:19 jaredy Exp $
 .\"
-.\" Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+.\" Copyright (c) 1998, 2000 Todd C. Miller <Todd.Miller@courtesan.com>
-.\" All rights reserved.
 .\"
-.\" Redistribution and use in source and binary forms, with or without
+.\" Permission to use, copy, modify, and distribute this software for any
-.\" modification, are permitted provided that the following conditions
+.\" purpose with or without fee is hereby granted, provided that the above
-.\" are met:
+.\" copyright notice and this permission notice appear in all copies.
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\" 3. The name of the author may not be used to endorse or promote products
-.\"    derived from this software without specific prior written permission.
 .\"
-.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-.\" AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-.\" THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-.\" EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-.\" PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-.\" OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-.\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-.\" ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\" $FreeBSD: /repoman/r/ncvs/src/lib/libc/string/strlcpy.3,v 1.13 2004/07/02 23:52:13 ru Exp $
+.Dd $Mdocdate: May 31 2007 $
-.\"
-.Dd June 22, 1998
 .Dt STRLCPY 3
 .Os
 .Sh NAME
@@ -35,9 +22,10 @@
 .Nm strlcat
 .Nd size-bounded string copying and concatenation
 .Sh LIBRARY
-.Lb libc
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
 .Sh SYNOPSIS
-.In string.h
+.In bsd/string.h
 .Ft size_t
 .Fn strlcpy "char *dst" "const char *src" "size_t size"
 .Ft size_t
@@ -64,7 +52,7 @@ is larger than 0 or, in the case of
 .Fn strlcat ,
 as long as there is at least one byte free in
 .Fa dst ) .
-Note that you should include a byte for the NUL in
+Note that a byte for the NUL should be included in
 .Fa size .
 Also note that
 .Fn strlcpy
@@ -108,8 +96,7 @@ The
 .Fn strlcpy
 and
 .Fn strlcat
-functions return the total length of the string they tried to
+functions return the total length of the string they tried to create.
-create.
 For
 .Fn strlcpy
 that means the length of
@@ -121,10 +108,10 @@ that means the initial length of
 plus
 the length of
 .Fa src .
-While this may seem somewhat confusing it was done to make
+While this may seem somewhat confusing, it was done to make
 truncation detection simple.
 .Pp
-Note however, that if
+Note, however, that if
 .Fn strlcat
 traverses
 .Fa size
@@ -168,8 +155,8 @@ if (strlcat(pname, file, sizeof(pname)) >= sizeof(pname))
 	goto toolong;
 .Ed
 .Pp
-Since we know how many characters we copied the first time, we can
+Since it is known how many characters were copied the first time, things
-speed things up a bit by using a copy instead of an append:
+can be sped up a bit by using a copy instead of an append:
 .Bd -literal -offset indent
 char *dir, *file, pname[MAXPATHLEN];
 size_t n;

man/strmode.3

@@ -0,0 +1,145 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)strmode.3	8.3 (Berkeley) 7/28/94
+.\" $FreeBSD: src/lib/libc/string/strmode.3,v 1.9 2003/07/01 15:28:05 maxim Exp $
+.\"
+.Dd July 28, 1994
+.Dt STRMODE 3
+.Os
+.Sh NAME
+.Nm strmode
+.Nd convert inode status information into a symbolic string
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
+.Sh SYNOPSIS
+.In bsd/string.h
+.Ft void
+.Fn strmode "mode_t mode" "char *bp"
+.Sh DESCRIPTION
+The
+.Fn strmode
+function
+converts a file
+.Fa mode
+(the type and permission information associated with an inode, see
+.Xr stat 2 )
+into a symbolic string which is stored in the location referenced by
+.Fa bp .
+This stored string is eleven characters in length plus a trailing
+.Dv NUL .
+.Pp
+The first character is the inode type, and will be one of the following:
+.Pp
+.Bl -tag -width flag -offset indent -compact
+.It \-
+regular file
+.It b
+block special
+.It c
+character special
+.It d
+directory
+.It l
+symbolic link
+.It p
+fifo
+.It s
+socket
+.It w
+whiteout
+.It ?
+unknown inode type
+.El
+.Pp
+The next nine characters encode three sets of permissions, in three
+characters each.
+The first three characters are the permissions for the owner of the
+file, the second three for the group the file belongs to, and the
+third for the ``other'', or default, set of users.
+.Pp
+Permission checking is done as specifically as possible.
+If read permission is denied to the owner of a file in the first set
+of permissions, the owner of the file will not be able to read the file.
+This is true even if the owner is in the file's group and the group
+permissions allow reading or the ``other'' permissions allow reading.
+.Pp
+If the first character of the three character set is an ``r'', the file is
+readable for that set of users; if a dash ``\-'', it is not readable.
+.Pp
+If the second character of the three character set is a ``w'', the file is
+writable for that set of users; if a dash ``\-'', it is not writable.
+.Pp
+The third character is the first of the following characters that apply:
+.Bl -tag -width xxxx
+.It S
+If the character is part of the owner permissions and the file is not
+executable or the directory is not searchable by the owner, and the
+set-user-id bit is set.
+.It S
+If the character is part of the group permissions and the file is not
+executable or the directory is not searchable by the group, and the
+set-group-id bit is set.
+.It T
+If the character is part of the other permissions and the file is not
+executable or the directory is not searchable by others, and the ``sticky''
+.Pq Dv S_ISVTX
+bit is set.
+.It s
+If the character is part of the owner permissions and the file is
+executable or the directory searchable by the owner, and the set-user-id
+bit is set.
+.It s
+If the character is part of the group permissions and the file is
+executable or the directory searchable by the group, and the set-group-id
+bit is set.
+.It t
+If the character is part of the other permissions and the file is
+executable or the directory searchable by others, and the ``sticky''
+.Pq Dv S_ISVTX
+bit is set.
+.It x
+The file is executable or the directory is searchable.
+.It \-
+None of the above apply.
+.El
+.Pp
+The last character is a plus sign ``+'' if any there are any alternate
+or additional access control methods associated with the inode, otherwise
+it will be a space.
+.Sh SEE ALSO
+.Xr chmod 1 ,
+.Xr find 1 ,
+.Xr stat 2 ,
+.Xr getmode 3 ,
+.Xr setmode 3
+.Sh HISTORY
+The
+.Fn strmode
+function first appeared in
+.Bx 4.4 .

man/strtonum.3

@@ -0,0 +1,159 @@
+.\" Copyright (c) 2004 Ted Unangst
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.\" $OpenBSD: strtonum.3,v 1.12 2005/10/26 11:37:58 jmc Exp $
+.\" $FreeBSD$
+.\"
+.Dd April 29, 2004
+.Dt STRTONUM 3
+.Os
+.Sh NAME
+.Nm strtonum
+.Nd reliably convert string value to an integer
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
+.Sh SYNOPSIS
+.In limits.h
+.In bsd/stdlib.h
+.Ft long long
+.Fo strtonum
+.Fa "const char *nptr"
+.Fa "long long minval"
+.Fa "long long maxval"
+.Fa "const char **errstr"
+.Fc
+.Sh DESCRIPTION
+The
+.Fn strtonum
+function converts the string in
+.Fa nptr
+to a
+.Vt "long long"
+value.
+The
+.Fn strtonum
+function was designed to facilitate safe, robust programming
+and overcome the shortcomings of the
+.Xr atoi 3
+and
+.Xr strtol 3
+family of interfaces.
+.Pp
+The string may begin with an arbitrary amount of whitespace
+(as determined by
+.Xr isspace 3 )
+followed by a single optional
+.Ql +
+or
+.Ql -
+sign.
+.Pp
+The remainder of the string is converted to a
+.Vt "long long"
+value according to base 10.
+.Pp
+The value obtained is then checked against the provided
+.Fa minval
+and
+.Fa maxval
+bounds.
+If
+.Fa errstr
+is non-null,
+.Fn strtonum
+stores an error string in
+.Fa *errstr
+indicating the failure.
+.Sh RETURN VALUES
+The
+.Fn strtonum
+function returns the result of the conversion,
+unless the value would exceed the provided bounds or is invalid.
+On error, 0 is returned,
+.Va errno
+is set, and
+.Fa errstr
+will point to an error message.
+On success,
+.Fa *errstr
+will be set to
+.Dv NULL ;
+this fact can be used to differentiate
+a successful return of 0 from an error.
+.Sh EXAMPLES
+Using
+.Fn strtonum
+correctly is meant to be simpler than the alternative functions.
+.Bd -literal -offset indent
+int iterations;
+const char *errstr;
+
+iterations = strtonum(optarg, 1, 64, &errstr);
+if (errstr)
+	errx(1, "number of iterations is %s: %s", errstr, optarg);
+.Ed
+.Pp
+The above example will guarantee that the value of iterations is between
+1 and 64 (inclusive).
+.Sh ERRORS
+.Bl -tag -width Er
+.It Bq Er ERANGE
+The given string was out of range.
+.It Bq Er EINVAL
+The given string did not consist solely of digit characters.
+.It Bq Er EINVAL
+The supplied
+.Fa minval
+was larger than
+.Fa maxval .
+.El
+.Pp
+If an error occurs,
+.Fa errstr
+will be set to one of the following strings:
+.Pp
+.Bl -tag -width ".Li too large" -compact
+.It Li "too large"
+The result was larger than the provided maximum value.
+.It Li "too small"
+The result was smaller than the provided minimum value.
+.It Li invalid
+The string did not consist solely of digit characters.
+.El
+.Sh SEE ALSO
+.Xr atof 3 ,
+.Xr atoi 3 ,
+.Xr atol 3 ,
+.Xr atoll 3 ,
+.Xr sscanf 3 ,
+.Xr strtod 3 ,
+.Xr strtol 3 ,
+.Xr strtoul 3
+.Sh STANDARDS
+The
+.Fn strtonum
+function is a
+.Bx
+extension.
+The existing alternatives, such as
+.Xr atoi 3
+and
+.Xr strtol 3 ,
+are either impossible or difficult to use safely.
+.Sh HISTORY
+The
+.Fn strtonum
+function first appeared in
+.Ox 3.6 .

man/tree.3

@@ -0,0 +1,504 @@
+.\"	$OpenBSD: tree.3,v 1.7 2002/06/12 01:09:20 provos Exp $
+.\"
+.\" Copyright 2002 Niels Provos <provos@citi.umich.edu>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"      This product includes software developed by Niels Provos.
+.\" 4. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd December 27, 2007
+.Dt TREE 3
+.Os
+.Sh NAME
+.Nm SPLAY_PROTOTYPE ,
+.Nm SPLAY_GENERATE ,
+.Nm SPLAY_ENTRY ,
+.Nm SPLAY_HEAD ,
+.Nm SPLAY_INITIALIZER ,
+.Nm SPLAY_ROOT ,
+.Nm SPLAY_EMPTY ,
+.Nm SPLAY_NEXT ,
+.Nm SPLAY_MIN ,
+.Nm SPLAY_MAX ,
+.Nm SPLAY_FIND ,
+.Nm SPLAY_LEFT ,
+.Nm SPLAY_RIGHT ,
+.Nm SPLAY_FOREACH ,
+.Nm SPLAY_INIT ,
+.Nm SPLAY_INSERT ,
+.Nm SPLAY_REMOVE ,
+.Nm RB_PROTOTYPE ,
+.Nm RB_PROTOTYPE_STATIC ,
+.Nm RB_GENERATE ,
+.Nm RB_GENERATE_STATIC ,
+.Nm RB_ENTRY ,
+.Nm RB_HEAD ,
+.Nm RB_INITIALIZER ,
+.Nm RB_ROOT ,
+.Nm RB_EMPTY ,
+.Nm RB_NEXT ,
+.Nm RB_PREV ,
+.Nm RB_MIN ,
+.Nm RB_MAX ,
+.Nm RB_FIND ,
+.Nm RB_NFIND ,
+.Nm RB_LEFT ,
+.Nm RB_RIGHT ,
+.Nm RB_PARENT ,
+.Nm RB_FOREACH ,
+.Nm RB_FOREACH_REVERSE ,
+.Nm RB_INIT ,
+.Nm RB_INSERT ,
+.Nm RB_REMOVE
+.Nd implementations of splay and red-black trees
+.Sh SYNOPSIS
+.In bsd/sys/tree.h
+.Fn SPLAY_PROTOTYPE NAME TYPE FIELD CMP
+.Fn SPLAY_GENERATE NAME TYPE FIELD CMP
+.Fn SPLAY_ENTRY TYPE
+.Fn SPLAY_HEAD HEADNAME TYPE
+.Ft "struct TYPE *"
+.Fn SPLAY_INITIALIZER "SPLAY_HEAD *head"
+.Fn SPLAY_ROOT "SPLAY_HEAD *head"
+.Ft bool
+.Fn SPLAY_EMPTY "SPLAY_HEAD *head"
+.Ft "struct TYPE *"
+.Fn SPLAY_NEXT NAME "SPLAY_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn SPLAY_MIN NAME "SPLAY_HEAD *head"
+.Ft "struct TYPE *"
+.Fn SPLAY_MAX NAME "SPLAY_HEAD *head"
+.Ft "struct TYPE *"
+.Fn SPLAY_FIND NAME "SPLAY_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn SPLAY_LEFT "struct TYPE *elm" "SPLAY_ENTRY NAME"
+.Ft "struct TYPE *"
+.Fn SPLAY_RIGHT "struct TYPE *elm" "SPLAY_ENTRY NAME"
+.Fn SPLAY_FOREACH VARNAME NAME "SPLAY_HEAD *head"
+.Ft void
+.Fn SPLAY_INIT "SPLAY_HEAD *head"
+.Ft "struct TYPE *"
+.Fn SPLAY_INSERT NAME "SPLAY_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn SPLAY_REMOVE NAME "SPLAY_HEAD *head" "struct TYPE *elm"
+.Fn RB_PROTOTYPE NAME TYPE FIELD CMP
+.Fn RB_PROTOTYPE_STATIC NAME TYPE FIELD CMP
+.Fn RB_GENERATE NAME TYPE FIELD CMP
+.Fn RB_GENERATE_STATIC NAME TYPE FIELD CMP
+.Fn RB_ENTRY TYPE
+.Fn RB_HEAD HEADNAME TYPE
+.Fn RB_INITIALIZER "RB_HEAD *head"
+.Ft "struct TYPE *"
+.Fn RB_ROOT "RB_HEAD *head"
+.Ft "bool"
+.Fn RB_EMPTY "RB_HEAD *head"
+.Ft "struct TYPE *"
+.Fn RB_NEXT NAME "RB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn RB_PREV NAME "RB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn RB_MIN NAME "RB_HEAD *head"
+.Ft "struct TYPE *"
+.Fn RB_MAX NAME "RB_HEAD *head"
+.Ft "struct TYPE *"
+.Fn RB_FIND NAME "RB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn RB_NFIND NAME "RB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn RB_LEFT "struct TYPE *elm" "RB_ENTRY NAME"
+.Ft "struct TYPE *"
+.Fn RB_RIGHT "struct TYPE *elm" "RB_ENTRY NAME"
+.Ft "struct TYPE *"
+.Fn RB_PARENT "struct TYPE *elm" "RB_ENTRY NAME"
+.Fn RB_FOREACH VARNAME NAME "RB_HEAD *head"
+.Fn RB_FOREACH_REVERSE VARNAME NAME "RB_HEAD *head"
+.Ft void
+.Fn RB_INIT "RB_HEAD *head"
+.Ft "struct TYPE *"
+.Fn RB_INSERT NAME "RB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn RB_REMOVE NAME "RB_HEAD *head" "struct TYPE *elm"
+.Sh DESCRIPTION
+These macros define data structures for different types of trees:
+splay trees and red-black trees.
+.Pp
+In the macro definitions,
+.Fa TYPE
+is the name tag of a user defined structure that must contain a field of type
+.Vt SPLAY_ENTRY ,
+or
+.Vt RB_ENTRY ,
+named
+.Fa ENTRYNAME .
+The argument
+.Fa HEADNAME
+is the name tag of a user defined structure that must be declared
+using the macros
+.Fn SPLAY_HEAD ,
+or
+.Fn RB_HEAD .
+The argument
+.Fa NAME
+has to be a unique name prefix for every tree that is defined.
+.Pp
+The function prototypes are declared with
+.Fn SPLAY_PROTOTYPE ,
+.Fn RB_PROTOTYPE ,
+or
+.Fn RB_PROTOTYPE_STATIC .
+The function bodies are generated with
+.Fn SPLAY_GENERATE ,
+.Fn RB_GENERATE ,
+or
+.Fn RB_GENERATE_STATIC .
+See the examples below for further explanation of how these macros are used.
+.Sh SPLAY TREES
+A splay tree is a self-organizing data structure.
+Every operation on the tree causes a splay to happen.
+The splay moves the requested
+node to the root of the tree and partly rebalances it.
+.Pp
+This has the benefit that request locality causes faster lookups as
+the requested nodes move to the top of the tree.
+On the other hand, every lookup causes memory writes.
+.Pp
+The Balance Theorem bounds the total access time for
+.Ar m
+operations and
+.Ar n
+inserts on an initially empty tree as
+.Fn O "\*[lp]m + n\*[rp]lg n" .
+The
+amortized cost for a sequence of
+.Ar m
+accesses to a splay tree is
+.Fn O "lg n" .
+.Pp
+A splay tree is headed by a structure defined by the
+.Fn SPLAY_HEAD
+macro.
+A
+structure is declared as follows:
+.Bd -ragged -offset indent
+.Fn SPLAY_HEAD HEADNAME TYPE
+.Va head ;
+.Ed
+.Pp
+where
+.Fa HEADNAME
+is the name of the structure to be defined, and struct
+.Fa TYPE
+is the type of the elements to be inserted into the tree.
+.Pp
+The
+.Fn SPLAY_ENTRY
+macro declares a structure that allows elements to be connected in the tree.
+.Pp
+In order to use the functions that manipulate the tree structure,
+their prototypes need to be declared with the
+.Fn SPLAY_PROTOTYPE
+macro,
+where
+.Fa NAME
+is a unique identifier for this particular tree.
+The
+.Fa TYPE
+argument is the type of the structure that is being managed
+by the tree.
+The
+.Fa FIELD
+argument is the name of the element defined by
+.Fn SPLAY_ENTRY .
+.Pp
+The function bodies are generated with the
+.Fn SPLAY_GENERATE
+macro.
+It takes the same arguments as the
+.Fn SPLAY_PROTOTYPE
+macro, but should be used only once.
+.Pp
+Finally,
+the
+.Fa CMP
+argument is the name of a function used to compare tree nodes
+with each other.
+The function takes two arguments of type
+.Vt "struct TYPE *" .
+If the first argument is smaller than the second, the function returns a
+value smaller than zero.
+If they are equal, the function returns zero.
+Otherwise, it should return a value greater than zero.
+The compare
+function defines the order of the tree elements.
+.Pp
+The
+.Fn SPLAY_INIT
+macro initializes the tree referenced by
+.Fa head .
+.Pp
+The splay tree can also be initialized statically by using the
+.Fn SPLAY_INITIALIZER
+macro like this:
+.Bd -ragged -offset indent
+.Fn SPLAY_HEAD HEADNAME TYPE
+.Va head
+=
+.Fn SPLAY_INITIALIZER &head ;
+.Ed
+.Pp
+The
+.Fn SPLAY_INSERT
+macro inserts the new element
+.Fa elm
+into the tree.
+.Pp
+The
+.Fn SPLAY_REMOVE
+macro removes the element
+.Fa elm
+from the tree pointed by
+.Fa head .
+.Pp
+The
+.Fn SPLAY_FIND
+macro can be used to find a particular element in the tree.
+.Bd -literal -offset indent
+struct TYPE find, *res;
+find.key = 30;
+res = SPLAY_FIND(NAME, head, &find);
+.Ed
+.Pp
+The
+.Fn SPLAY_ROOT ,
+.Fn SPLAY_MIN ,
+.Fn SPLAY_MAX ,
+and
+.Fn SPLAY_NEXT
+macros can be used to traverse the tree:
+.Bd -literal -offset indent
+for (np = SPLAY_MIN(NAME, &head); np != NULL; np = SPLAY_NEXT(NAME, &head, np))
+.Ed
+.Pp
+Or, for simplicity, one can use the
+.Fn SPLAY_FOREACH
+macro:
+.Bd -ragged -offset indent
+.Fn SPLAY_FOREACH np NAME head
+.Ed
+.Pp
+The
+.Fn SPLAY_EMPTY
+macro should be used to check whether a splay tree is empty.
+.Sh RED-BLACK TREES
+A red-black tree is a binary search tree with the node color as an
+extra attribute.
+It fulfills a set of conditions:
+.Bl -enum -offset indent
+.It
+Every search path from the root to a leaf consists of the same number of
+black nodes.
+.It
+Each red node (except for the root) has a black parent.
+.It
+Each leaf node is black.
+.El
+.Pp
+Every operation on a red-black tree is bounded as
+.Fn O "lg n" .
+The maximum height of a red-black tree is
+.Fn 2lg "n + 1" .
+.Pp
+A red-black tree is headed by a structure defined by the
+.Fn RB_HEAD
+macro.
+A
+structure is declared as follows:
+.Bd -ragged -offset indent
+.Fn RB_HEAD HEADNAME TYPE
+.Va head ;
+.Ed
+.Pp
+where
+.Fa HEADNAME
+is the name of the structure to be defined, and struct
+.Fa TYPE
+is the type of the elements to be inserted into the tree.
+.Pp
+The
+.Fn RB_ENTRY
+macro declares a structure that allows elements to be connected in the tree.
+.Pp
+In order to use the functions that manipulate the tree structure,
+their prototypes need to be declared with the
+.Fn RB_PROTOTYPE
+or
+.Fn RB_PROTOTYPE_STATIC
+macro,
+where
+.Fa NAME
+is a unique identifier for this particular tree.
+The
+.Fa TYPE
+argument is the type of the structure that is being managed
+by the tree.
+The
+.Fa FIELD
+argument is the name of the element defined by
+.Fn RB_ENTRY .
+.Pp
+The function bodies are generated with the
+.Fn RB_GENERATE
+or
+.Fn RB_GENERATE_STATIC
+macro.
+These macros take the same arguments as the
+.Fn RB_PROTOTYPE
+and
+.Fn RB_PROTOTYPE_STATIC
+macros, but should be used only once.
+.Pp
+Finally,
+the
+.Fa CMP
+argument is the name of a function used to compare tree nodes
+with each other.
+The function takes two arguments of type
+.Vt "struct TYPE *" .
+If the first argument is smaller than the second, the function returns a
+value smaller than zero.
+If they are equal, the function returns zero.
+Otherwise, it should return a value greater than zero.
+The compare
+function defines the order of the tree elements.
+.Pp
+The
+.Fn RB_INIT
+macro initializes the tree referenced by
+.Fa head .
+.Pp
+The red-black tree can also be initialized statically by using the
+.Fn RB_INITIALIZER
+macro like this:
+.Bd -ragged -offset indent
+.Fn RB_HEAD HEADNAME TYPE
+.Va head
+=
+.Fn RB_INITIALIZER &head ;
+.Ed
+.Pp
+The
+.Fn RB_INSERT
+macro inserts the new element
+.Fa elm
+into the tree.
+.Pp
+The
+.Fn RB_REMOVE
+macro removes the element
+.Fa elm
+from the tree pointed by
+.Fa head .
+.Pp
+The
+.Fn RB_FIND
+and
+.Fn RB_NFIND
+macros can be used to find a particular element in the tree.
+.Bd -literal -offset indent
+struct TYPE find, *res;
+find.key = 30;
+res = RB_FIND(NAME, head, &find);
+.Ed
+.Pp
+The
+.Fn RB_ROOT ,
+.Fn RB_MIN ,
+.Fn RB_MAX ,
+.Fn RB_NEXT ,
+and
+.Fn RB_PREV
+macros can be used to traverse the tree:
+.Pp
+.Dl "for (np = RB_MIN(NAME, &head); np != NULL; np = RB_NEXT(NAME, &head, np))"
+.Pp
+Or, for simplicity, one can use the
+.Fn RB_FOREACH
+or
+.Fn RB_FOREACH_REVERSE
+macro:
+.Bd -ragged -offset indent
+.Fn RB_FOREACH np NAME head
+.Ed
+.Pp
+The
+.Fn RB_EMPTY
+macro should be used to check whether a red-black tree is empty.
+.Sh NOTES
+Trying to free a tree in the following way is a common error:
+.Bd -literal -offset indent
+SPLAY_FOREACH(var, NAME, head) {
+	SPLAY_REMOVE(NAME, head, var);
+	free(var);
+}
+free(head);
+.Ed
+.Pp
+Since
+.Va var
+is freed, the
+.Fn FOREACH
+macro refers to a pointer that may have been reallocated already.
+Proper code needs a second variable.
+.Bd -literal -offset indent
+for (var = SPLAY_MIN(NAME, head); var != NULL; var = nxt) {
+	nxt = SPLAY_NEXT(NAME, head, var);
+	SPLAY_REMOVE(NAME, head, var);
+	free(var);
+}
+.Ed
+.Pp
+Both
+.Fn RB_INSERT
+and
+.Fn SPLAY_INSERT
+return
+.Dv NULL
+if the element was inserted in the tree successfully, otherwise they
+return a pointer to the element with the colliding key.
+.Pp
+Accordingly,
+.Fn RB_REMOVE
+and
+.Fn SPLAY_REMOVE
+return the pointer to the removed element otherwise they return
+.Dv NULL
+to indicate an error.
+.Sh SEE ALSO
+.Xr queue 3
+.Sh AUTHORS
+The author of the tree macros is
+.An Niels Provos .

man/unvis.3

@@ -0,0 +1,198 @@
+.\"	$OpenBSD: unvis.3,v 1.15 2005/07/22 03:16:58 jaredy Exp $
+.\"
+.\" Copyright (c) 1989, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: May 31 2007 $
+.Dt UNVIS 3
+.Os
+.Sh NAME
+.Nm unvis ,
+.Nm strunvis ,
+.Nm strnunvis
+.Nd decode a visual representation of characters
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
+.Sh SYNOPSIS
+.In bsd/vis.h
+.Ft int
+.Fn unvis "char *cp" "char c" "int *astate" "int flag"
+.Ft int
+.Fn strunvis "char *dst" "char *src"
+.Ft ssize_t
+.Fn strnunvis "char *dst" "char *src" "size_t size"
+.Sh DESCRIPTION
+The
+.Fn unvis ,
+.Fn strunvis
+and
+.Fn strnunvis
+functions are used to decode a visual representation of characters,
+as produced by the
+.Xr vis 3
+function, back into the original form.
+.Fn unvis
+is called with successive characters in
+.Fa c
+until a valid
+sequence is recognized, at which time the decoded character is
+available at the character pointed to by
+.Fa cp .
+.Pp
+.Fn strunvis
+decodes the characters pointed to by
+.Fa src
+into the buffer pointed to by
+.Fa dst .
+.Pp
+.Fn strnunvis
+decodes the characters pointed to by
+.Fa src
+into the buffer pointed to by
+.Fa dst ,
+writing a maximum of
+.Fa size
+bytes.
+The
+.Fn strunvis
+function simply copies
+.Fa src
+to
+.Fa dst ,
+decoding any escape sequences along the way,
+and returns the number of characters placed into
+.Fa dst ,
+or \-1 if an
+invalid escape sequence was detected.
+The size of
+.Fa dst
+should be
+equal to the size of
+.Fa src
+(that is, no expansion takes place during decoding).
+.Fn strunvis
+terminates the destination string with a trailing NUL byte;
+.Fn strnunvis
+does so if
+.Fa size
+is larger than 0.
+.Pp
+The
+.Fn unvis
+function implements a state machine that can be used to decode an arbitrary
+stream of bytes.
+All state associated with the bytes being decoded is stored outside the
+.Fn unvis
+function (that is, a pointer to the state is passed in), so
+calls decoding different streams can be freely intermixed.
+To start decoding a stream of bytes, first initialize an integer
+to zero.
+Call
+.Fn unvis
+with each successive byte, along with a pointer
+to this integer, and a pointer to a destination character.
+.Sh RETURN VALUES
+The
+.Fn unvis
+function has several return codes that must be handled properly.
+They are:
+.Bl -tag -width UNVIS_VALIDPUSH
+.It Li \&0 (zero)
+Another character is necessary; nothing has been recognized yet.
+.It Dv UNVIS_VALID
+A valid character has been recognized and is available at the location
+pointed to by
+.Fa cp .
+.It Dv UNVIS_VALIDPUSH
+A valid character has been recognized and is available at the location
+pointed to by
+.Fa cp ;
+however, the character currently passed in should be passed in again.
+.It Dv UNVIS_NOCHAR
+A valid sequence was detected, but no character was produced.
+This return code is necessary to indicate a logical break between characters.
+.It Dv UNVIS_SYNBAD
+An invalid escape sequence was detected, or the decoder is in an
+unknown state.
+The decoder is placed into the starting state.
+.El
+.Pp
+When all bytes in the stream have been processed, call
+.Fn unvis
+one more time with
+.Fa flag
+set to
+.Dv UNVIS_END
+to extract any remaining character (the character passed in is ignored).
+.Pp
+The
+.Fn strunvis
+function returns the number of bytes written (not counting
+the trailing NUL byte) or \-1 if an error occurred.
+.Pp
+The
+.Fn strnunvis
+function returns the number of bytes (not counting the trailing NUL byte)
+that would be needed to fully convert the input string, or \-1 if an
+error occurred.
+.Sh EXAMPLES
+The following code fragment illustrates a proper use of
+.Fn unvis .
+.Bd -literal -offset indent
+int state = 0;
+char out;
+
+while ((ch = getchar()) != EOF) {
+again:
+	switch(unvis(&out, ch, &state, 0)) {
+	case 0:
+	case UNVIS_NOCHAR:
+		break;
+	case UNVIS_VALID:
+		(void) putchar(out);
+		break;
+	case UNVIS_VALIDPUSH:
+		(void) putchar(out);
+		goto again;
+	case UNVIS_SYNBAD:
+		(void)fprintf(stderr, "bad sequence!\en");
+		exit(1);
+	}
+}
+if (unvis(&out, (char)0, &state, UNVIS_END) == UNVIS_VALID)
+	(void) putchar(out);
+.Ed
+.Sh SEE ALSO
+.Xr unvis 1 ,
+.Xr vis 1 ,
+.Xr vis 3
+.Sh HISTORY
+The
+.Fn unvis
+function first appeared in
+.Bx 4.4 .

man/vis.3

@@ -0,0 +1,321 @@
+.\"	$OpenBSD: vis.3,v 1.23 2005/08/28 19:51:27 millert Exp $
+.\"
+.\" Copyright (c) 1989, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd $Mdocdate: May 31 2007 $
+.Dt VIS 3
+.Os
+.Sh NAME
+.Nm vis ,
+.Nm strvis ,
+.Nm strnvis ,
+.Nm strvisx
+.Nd visually encode characters
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.Lb libbsd
+.Sh SYNOPSIS
+.In stdlib.h
+.In bsd/vis.h
+.Ft char *
+.Fn vis "char *dst" "int c" "int flag" "int nextc"
+.Ft int
+.Fn strvis "char *dst" "const char *src" "int flag"
+.Ft int
+.Fn strnvis "char *dst" "const char *src" "size_t size" "int flag"
+.Ft int
+.Fn strvisx "char *dst" "const char *src" "size_t len" "int flag"
+.Sh DESCRIPTION
+The
+.Fn vis
+function copies into
+.Fa dst
+a string which represents the character
+.Fa c .
+If
+.Fa c
+needs no encoding, it is copied in unaltered.
+The string is NUL terminated and a pointer to the end of the string is
+returned.
+The maximum length of any encoding is four
+characters (not including the trailing NUL);
+thus, when
+encoding a set of characters into a buffer, the size of the buffer should
+be four times the number of characters encoded, plus one for the trailing
+NUL.
+The
+.Fa flag
+parameter is used for altering the default range of
+characters considered for encoding and for altering the visual
+representation.
+The additional character,
+.Fa nextc ,
+is only used when selecting the
+.Dv VIS_CSTYLE
+encoding format (explained below).
+.Pp
+The
+.Fn strvis ,
+.Fn strnvis
+and
+.Fn strvisx
+functions copy into
+.Fa dst
+a visual representation of
+the string
+.Fa src .
+The
+.Fn strvis
+function encodes characters from
+.Fa src
+up to the first NUL.
+The
+.Fn strnvis
+function encodes characters from
+.Fa src
+up to the first NUL or the end of
+.Fa dst ,
+as indicated by
+.Fa size .
+The
+.Fn strvisx
+function encodes exactly
+.Fa len
+characters from
+.Fa src
+(this
+is useful for encoding a block of data that may contain NULs).
+All three forms NUL terminate
+.Fa dst ,
+except for
+.Fn strnvis
+when
+.Fa size
+is zero, in which case
+.Fa dst
+is not touched.
+For
+.Fn strvis
+and
+.Fn strvisx ,
+the size of
+.Fa dst
+must be four times the number
+of characters encoded from
+.Fa src
+(plus one for the NUL).
+.Fn strvis
+and
+.Fn strvisx
+return the number of characters in
+.Fa dst
+(not including the trailing NUL).
+.Fn strnvis
+returns the length that
+.Fa dst
+would become if it were of unlimited size (similar to
+.Xr snprintf 3
+or
+.Xr strlcpy 3 ) .
+This can be used to detect truncation but it also means that
+the return value of
+.Fn strnvis
+must not be used without checking it against
+.Fa size .
+.Pp
+The encoding is a unique, invertible representation composed entirely of
+graphic characters; it can be decoded back into the original form using
+the
+.Xr unvis 3
+or
+.Xr strunvis 3
+functions.
+.Pp
+There are two parameters that can be controlled: the range of
+characters that are encoded, and the type
+of representation used.
+By default, all non-graphic characters
+except space, tab, and newline are encoded
+(see
+.Xr isgraph 3 ) .
+The following flags
+alter this:
+.Bl -tag -width VIS_WHITEX
+.It Dv VIS_GLOB
+Also encode magic characters recognized by
+.Xr glob 3
+.Pf ( Ql * ,
+.Ql \&? ,
+.Ql \&[ )
+and
+.Ql # .
+.It Dv VIS_SP
+Also encode space.
+.It Dv VIS_TAB
+Also encode tab.
+.It Dv VIS_NL
+Also encode newline.
+.It Dv VIS_WHITE
+Synonym for
+.Dv VIS_SP
+\&|
+.Dv VIS_TAB
+\&|
+.Dv VIS_NL .
+.It Dv VIS_SAFE
+Only encode
+.Dq unsafe
+characters.
+These are control characters which may cause common terminals to perform
+unexpected functions.
+Currently this form allows space,
+tab, newline, backspace, bell, and return -- in addition
+to all graphic characters -- unencoded.
+.El
+.Pp
+There are three forms of encoding.
+All forms use the backslash
+.Ql \e
+character to introduce a special
+sequence; two backslashes are used to represent a real backslash.
+These are the visual formats:
+.Bl -tag -width VIS_CSTYLE
+.It (default)
+Use an
+.Ql M
+to represent meta characters (characters with the 8th
+bit set), and use a caret
+.Ql ^
+to represent control characters (see
+.Xr iscntrl 3 ) .
+The following formats are used:
+.Bl -tag -width xxxxx
+.It Dv \e^C
+Represents the control character
+.Ql C .
+Spans characters
+.Ql \e000
+through
+.Ql \e037 ,
+and
+.Ql \e177
+(as
+.Ql \e^? ) .
+.It Dv \eM-C
+Represents character
+.Ql C
+with the 8th bit set.
+Spans characters
+.Ql \e241
+through
+.Ql \e376 .
+.It Dv \eM^C
+Represents control character
+.Ql C
+with the 8th bit set.
+Spans characters
+.Ql \e200
+through
+.Ql \e237 ,
+and
+.Ql \e377
+(as
+.Ql \eM^? ) .
+.It Dv \e040
+Represents
+.Tn ASCII
+space.
+.It Dv \e240
+Represents Meta-space.
+.El
+.Pp
+.It Dv VIS_CSTYLE
+Use C-style backslash sequences to represent standard non-printable
+characters.
+The following sequences are used to represent the indicated characters:
+.Bd -unfilled -offset indent
+.Li \ea Tn  - BEL No (007)
+.Li \eb Tn  - BS No (010)
+.Li \ef Tn  - NP No (014)
+.Li \en Tn  - NL No (012)
+.Li \er Tn  - CR No (015)
+.Li \es Tn  - SP No (040)
+.Li \et Tn  - HT No (011)
+.Li \ev Tn  - VT No (013)
+.Li \e0 Tn  - NUL No (000)
+.Ed
+.Pp
+When using this format, the
+.Fa nextc
+parameter is looked at to determine
+if a NUL character can be encoded as
+.Ql \e0
+instead of
+.Ql \e000 .
+If
+.Fa nextc
+is an octal digit, the latter representation is used to
+avoid ambiguity.
+.It Dv VIS_OCTAL
+Use a three digit octal sequence.
+The form is
+.Ql \eddd
+where
+.Ar d
+represents an octal digit.
+.El
+.Pp
+There is one additional flag,
+.Dv VIS_NOSLASH ,
+which inhibits the
+doubling of backslashes and the backslash before the default
+format (that is, control characters are represented by
+.Ql ^C
+and
+meta characters as
+.Ql M-C ) .
+With this flag set, the encoding is
+ambiguous and non-invertible.
+.Sh SEE ALSO
+.Xr unvis 1 ,
+.Xr vis 1 ,
+.Xr snprintf 3 ,
+.Xr strlcpy 3 ,
+.Xr unvis 3
+.Sh HISTORY
+The
+.Fn vis ,
+.Fn strvis
+and
+.Fn strvisx
+functions first appeared in
+.Bx 4.4 .
+The
+.Fn strnvis
+function first appeared in
+.Ox 2.9 .

src/Makefile.am

@@ -0,0 +1,90 @@
+## Process this file with automake to produce Makefile.in
+
+# Set default values for user variables
+CFLAGS = -Wall -Wextra -Wno-unused-variable -Wno-unused-parameter
+
+AM_CPPFLAGS = \
+	-I$(top_builddir) \
+	-isystem $(top_srcdir)/include/bsd/ \
+	-include $(top_builddir)/config.h \
+	-DLIBBSD_OVERLAY -DLIBBSD_DISABLE_DEPRECATED \
+	-D__REENTRANT
+
+EXTRA_DIST = \
+	libbsd.map \
+	libbsd.pc.in \
+	libbsd-overlay.pc.in \
+	hash/helper.c \
+	$(nil)
+
+CLEANFILES = \
+	hash/md5hl.c \
+	$(nil)
+
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = \
+	libbsd.pc \
+	libbsd-overlay.pc \
+	$(nil)
+
+lib_LTLIBRARIES = libbsd.la
+
+hash/md5hl.c: $(srcdir)/hash/helper.c
+	$(MKDIR_P) hash
+	$(AM_V_GEN) sed -e 's:hashinc:md5.h:g' -e 's:HASH:MD5:g' $< > $@
+
+libbsd_la_DEPENDENCIES = \
+	libbsd.map
+libbsd_la_LDFLAGS = \
+	-Wl,--version-script=$(srcdir)/libbsd.map \
+	-version-number 0:4:1
+libbsd_la_SOURCES = \
+	arc4random.c \
+	bsd_getopt.c \
+	closefrom.c \
+	dehumanize_number.c \
+	err.c \
+	expand_number.c \
+	fgetln.c \
+	flopen.c \
+	fmtcheck.c \
+	fpurge.c \
+	getpeereid.c \
+	hash/md5.c \
+	hash/md5hl.c \
+	heapsort.c \
+	humanize_number.c \
+	inet_net_pton.c \
+	local-elf.h \
+	merge.c \
+	nlist.c \
+	pidfile.c \
+	progname.c \
+	radixsort.c \
+	readpassphrase.c \
+	reallocf.c \
+	setmode.c \
+	setproctitle.c \
+	strlcat.c \
+	strlcpy.c \
+	strmode.c \
+	strtonum.c \
+	unvis.c \
+	vis.c \
+	$(nil)
+
+runtimelibdir = $(libdir)
+
+install-exec-hook:
+	if [ "$(libdir)" != "$(runtimelibdir)" ]; then \
+		$(MKDIR_P) $(DESTDIR)$(runtimelibdir); \
+		mv $(DESTDIR)$(libdir)/libbsd*.so.* \
+		   $(DESTDIR)$(runtimelibdir)/; \
+		soname=`readlink $(DESTDIR)$(libdir)/libbsd.so`; \
+		sorelprefix=`echo $(libdir) | sed -r -e 's:(^/)?[^/]+:..:g'`; \
+		ln -sf $$sorelprefix$(runtimelibdir)/$$soname \
+		       $(DESTDIR)$(libdir)/libbsd.so; \
+	fi
+
+uninstall-hook:
+	rm -f $(DESTDIR)$(runtimelibdir)/libbsd*.so*

src/arc4random.c

@@ -1,14 +1,23 @@
 /*
- * Arc4 random number generator for OpenBSD.
+ * Copyright (c) 1996, David Mazieres <dm@uun.org>
- * Copyright 1996 David Mazieres <dm@lcs.mit.edu>.
+ * Copyright (c) 2008, Damien Miller <djm@openbsd.org>
  *
- * Modification and redistribution in source and binary forms is
+ * Permission to use, copy, modify, and distribute this software for any
- * permitted provided that due credit is given to the author and the
+ * purpose with or without fee is hereby granted, provided that the above
- * OpenBSD project (for instance by leaving this copyright notice
+ * copyright notice and this permission notice appear in all copies.
- * intact).
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
 /*
+ * Arc4 random number generator for OpenBSD.
+ *
  * This code is derived from section 17.1 of Applied Cryptography,
  * second edition, which describes a stream cipher allegedly
  * compatible with RSA Labs "RC4" cipher (the actual description of
@@ -24,7 +33,7 @@
  */
 
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/gen/arc4random.c,v 1.10 2004/03/24 14:44:57 green Exp $");
+__FBSDID("$FreeBSD$");
 
 #include <sys/types.h>
 #include <sys/time.h>
@@ -40,6 +49,8 @@ struct arc4_stream {
 };
 
 #define	RANDOMDEV	"/dev/urandom"
+#define KEYSIZE		128
+
 #ifdef __REENTRANT
 static pthread_mutex_t arc4random_mtx = PTHREAD_MUTEX_INITIALIZER;
 #define	THREAD_LOCK()	pthread_mutex_lock(&arc4random_mtx)
@@ -52,58 +63,63 @@ static pthread_mutex_t arc4random_mtx = PTHREAD_MUTEX_INITIALIZER;
 static struct arc4_stream rs;
 static int rs_initialized;
 static int rs_stired;
+static int arc4_count;
 
-static inline u_int8_t arc4_getbyte(struct arc4_stream *);
+static inline u_int8_t arc4_getbyte(void);
-static void arc4_stir(struct arc4_stream *);
+static void arc4_stir(void);
 
 static inline void
-arc4_init(struct arc4_stream *as)
+arc4_init(void)
 {
 	int     n;
 
 	for (n = 0; n < 256; n++)
-		as->s[n] = n;
+		rs.s[n] = n;
-	as->i = 0;
+	rs.i = 0;
-	as->j = 0;
+	rs.j = 0;
 }
 
 static inline void
-arc4_addrandom(struct arc4_stream *as, u_char *dat, int datlen)
+arc4_addrandom(u_char *dat, int datlen)
 {
 	int     n;
 	u_int8_t si;
 
-	as->i--;
+	rs.i--;
 	for (n = 0; n < 256; n++) {
-		as->i = (as->i + 1);
+		rs.i = (rs.i + 1);
-		si = as->s[as->i];
+		si = rs.s[rs.i];
-		as->j = (as->j + si + dat[n % datlen]);
+		rs.j = (rs.j + si + dat[n % datlen]);
-		as->s[as->i] = as->s[as->j];
+		rs.s[rs.i] = rs.s[rs.j];
-		as->s[as->j] = si;
+		rs.s[rs.j] = si;
 	}
+	rs.j = rs.i;
 }
 
 static void
-arc4_stir(struct arc4_stream *as)
+arc4_stir(void)
 {
-	int     fd, n;
+	int done, fd, n;
 	struct {
-		struct timeval tv;
+		struct timeval	tv;
-		pid_t pid;
+		pid_t 		pid;
-		u_int8_t rnd[128 - sizeof(struct timeval) - sizeof(pid_t)];
+		u_int8_t 	rnd[KEYSIZE];
-	}       rdat;
+	} rdat;
 
-	gettimeofday(&rdat.tv, NULL);
-	rdat.pid = getpid();
 	fd = open(RANDOMDEV, O_RDONLY, 0);
+	done = 0;
 	if (fd >= 0) {
-		(void) read(fd, rdat.rnd, sizeof(rdat.rnd));
+		if (read(fd, &rdat, KEYSIZE) == KEYSIZE)
-		close(fd);
+			done = 1;
+		(void)close(fd);
 	} 
-	/* fd < 0?  Ah, what the heck. We'll just take whatever was on the
+	if (!done) {
-	 * stack... */
+		(void)gettimeofday(&rdat.tv, NULL);
+		rdat.pid = getpid();
+		/* We'll just take whatever was on the stack too... */
+	}
 
-	arc4_addrandom(as, (void *) &rdat, sizeof(rdat));
+	arc4_addrandom((u_char *)&rdat, KEYSIZE);
 
 	/*
 	 * Throw away the first N bytes of output, as suggested in the
@@ -113,33 +129,34 @@ arc4_stir(struct arc4_stream *as)
 	 * by Ilya Mironov.
 	 */
 	for (n = 0; n < 1024; n++)
-		arc4_getbyte(as);
+		(void) arc4_getbyte();
+	arc4_count = 1600000;
 }
 
 static inline u_int8_t
-arc4_getbyte(struct arc4_stream *as)
+arc4_getbyte(void)
 {
 	u_int8_t si, sj;
 
-	as->i = (as->i + 1);
+	rs.i = (rs.i + 1);
-	si = as->s[as->i];
+	si = rs.s[rs.i];
-	as->j = (as->j + si);
+	rs.j = (rs.j + si);
-	sj = as->s[as->j];
+	sj = rs.s[rs.j];
-	as->s[as->i] = sj;
+	rs.s[rs.i] = sj;
-	as->s[as->j] = si;
+	rs.s[rs.j] = si;
 
-	return (as->s[(si + sj) & 0xff]);
+	return (rs.s[(si + sj) & 0xff]);
 }
 
 static inline u_int32_t
-arc4_getword(struct arc4_stream *as)
+arc4_getword(void)
 {
 	u_int32_t val;
 
-	val = arc4_getbyte(as) << 24;
+	val = arc4_getbyte() << 24;
-	val |= arc4_getbyte(as) << 16;
+	val |= arc4_getbyte() << 16;
-	val |= arc4_getbyte(as) << 8;
+	val |= arc4_getbyte() << 8;
-	val |= arc4_getbyte(as);
+	val |= arc4_getbyte();
 
 	return (val);
 }
@@ -148,55 +165,115 @@ static void
 arc4_check_init(void)
 {
 	if (!rs_initialized) {
-		arc4_init(&rs);
+		arc4_init();
 		rs_initialized = 1;
 	}
 }
 
-static void
+static inline void
 arc4_check_stir(void)
 {
-	if (!rs_stired) {
+	if (!rs_stired || arc4_count <= 0) {
-		arc4_stir(&rs);
+		arc4_stir();
 		rs_stired = 1;
 	}
 }
 
 void
-arc4random_stir()
+arc4random_stir(void)
 {
 	THREAD_LOCK();
 	arc4_check_init();
-	arc4_stir(&rs);
+	arc4_stir();
+	rs_stired = 1;
 	THREAD_UNLOCK();
 }
 
 void
-arc4random_addrandom(dat, datlen)
+arc4random_addrandom(u_char *dat, int datlen)
-	u_char *dat;
-	int     datlen;
 {
 	THREAD_LOCK();
 	arc4_check_init();
 	arc4_check_stir();
-	arc4_addrandom(&rs, dat, datlen);
+	arc4_addrandom(dat, datlen);
 	THREAD_UNLOCK();
 }
 
 u_int32_t
-arc4random()
+arc4random(void)
 {
 	u_int32_t rnd;
 
 	THREAD_LOCK();
 	arc4_check_init();
 	arc4_check_stir();
-	rnd = arc4_getword(&rs);
+	rnd = arc4_getword();
+	arc4_count -= 4;
 	THREAD_UNLOCK();
 
 	return (rnd);
 }
 
+void
+arc4random_buf(void *_buf, size_t n)
+{
+	u_char *buf = (u_char *)_buf;
+
+	THREAD_LOCK();
+	arc4_check_init();
+	while (n--) {
+		arc4_check_stir();
+		buf[n] = arc4_getbyte();
+		arc4_count--;
+	}
+	THREAD_UNLOCK();
+}
+
+/*
+ * Calculate a uniformly distributed random number less than upper_bound
+ * avoiding "modulo bias".
+ *
+ * Uniformity is achieved by generating new random numbers until the one
+ * returned is outside the range [0, 2**32 % upper_bound).  This
+ * guarantees the selected random number will be inside
+ * [2**32 % upper_bound, 2**32) which maps back to [0, upper_bound)
+ * after reduction modulo upper_bound.
+ */
+u_int32_t
+arc4random_uniform(u_int32_t upper_bound)
+{
+	u_int32_t r, min;
+
+	if (upper_bound < 2)
+		return (0);
+
+#if (ULONG_MAX > 0xffffffffUL)
+	min = 0x100000000UL % upper_bound;
+#else
+	/* Calculate (2**32 % upper_bound) avoiding 64-bit math */
+	if (upper_bound > 0x80000000)
+		min = 1 + ~upper_bound;		/* 2**32 - upper_bound */
+	else {
+		/* (2**32 - (x * 2)) % x == 2**32 % x when x <= 2**31 */
+		min = ((0xffffffff - (upper_bound * 2)) + 1) % upper_bound;
+	}
+#endif
+
+	/*
+	 * This could theoretically loop forever but each retry has
+	 * p > 0.5 (worst case, usually far better) of selecting a
+	 * number inside the range we need, so it should rarely need
+	 * to re-roll.
+	 */
+	for (;;) {
+		r = arc4random();
+		if (r >= min)
+			break;
+	}
+
+	return (r % upper_bound);
+}
+
 #if 0
 /*-------- Test code for i386 --------*/
 #include <stdio.h>

src/bsd_getopt.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2006 Robert Millan
+ * Copyright © 2006 Robert Millan
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -24,18 +24,21 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <bsd/getopt.h>
+#include <getopt.h>
 
 int optreset = 0;
 
 int
-bsd_getopt (int argc, char **argv, char *shortopts)
+bsd_getopt(int argc, char * const argv[], const char *shortopts)
 {
-  if (optreset == 1)
+	if (optreset == 1) {
-    {
+		optreset = 0;
-      optreset = 0;
+		optind = 0;
-      optind = 0;
+	}
-    }
 
-  return getopt (argc, argv, shortopts);
+	/*
+	 * Make sure we are using the system getopt() and not a possible
+	 * overlay macro.
+	 */
+	return (getopt)(argc, argv, shortopts);
 }

src/closefrom.c

@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2004-2005, 2007, 2010
+ *	Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <config.h>
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <unistd.h>
+#include <stdio.h>
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif /* STDC_HEADERS */
+#include <fcntl.h>
+#ifdef HAVE_DIRENT_H
+# include <dirent.h>
+# define NAMLEN(dirent) strlen((dirent)->d_name)
+#else
+# define dirent direct
+# define NAMLEN(dirent) (dirent)->d_namlen
+# ifdef HAVE_SYS_NDIR_H
+#  include <sys/ndir.h>
+# endif
+# ifdef HAVE_SYS_DIR_H
+#  include <sys/dir.h>
+# endif
+# ifdef HAVE_NDIR_H
+#  include <ndir.h>
+# endif
+#endif
+
+#ifndef OPEN_MAX
+# define OPEN_MAX 256
+#endif
+
+#ifndef HAVE_FCNTL_CLOSEM
+# ifndef HAVE_DIRFD
+#   define closefrom_fallback	closefrom
+# endif
+#endif
+
+/*
+ * Close all file descriptors greater than or equal to lowfd.
+ * This is the expensive (ballback) method.
+ */
+void
+closefrom_fallback(int lowfd)
+{
+	long fd, maxfd;
+
+	/*
+	 * Fall back on sysconf() or getdtablesize().  We avoid checking
+	 * resource limits since it is possible to open a file descriptor
+	 * and then drop the rlimit such that it is below the open fd.
+	 */
+#ifdef HAVE_SYSCONF
+	maxfd = sysconf(_SC_OPEN_MAX);
+#else
+	maxfd = getdtablesize();
+#endif /* HAVE_SYSCONF */
+	if (maxfd < 0)
+		maxfd = OPEN_MAX;
+
+	for (fd = lowfd; fd < maxfd; fd++)
+		(void)close((int)fd);
+}
+
+/*
+ * Close all file descriptors greater than or equal to lowfd.
+ * We try the fast way first, falling back on the slow method.
+ */
+#ifdef HAVE_FCNTL_CLOSEM
+void
+closefrom(int lowfd)
+{
+	if (fcntl(lowfd, F_CLOSEM, 0) == -1)
+		closefrom_fallback(lowfd);
+}
+#else
+# ifdef HAVE_DIRFD
+void
+closefrom(int lowfd)
+{
+	struct dirent *dent;
+	DIR *dirp;
+	char *endp;
+	long fd;
+
+	/* Use /proc/self/fd directory if it exists. */
+	dirp = opendir("/proc/self/fd");
+	if (dirp != NULL) {
+		while ((dent = readdir(dirp)) != NULL) {
+			fd = strtol(dent->d_name, &endp, 10);
+			if (dent->d_name != endp && *endp == '\0' &&
+			    fd >= 0 && fd < INT_MAX && fd >= lowfd &&
+			    fd != dirfd(dirp))
+				(void)close((int)fd);
+		}
+		(void)closedir(dirp);
+	} else
+		closefrom_fallback(lowfd);
+}
+#endif /* HAVE_DIRFD */
+#endif /* HAVE_FCNTL_CLOSEM */

src/dehumanize_number.c

@@ -0,0 +1,114 @@
+/*	$NetBSD: dehumanize_number.c,v 1.2 2007/12/14 17:32:47 xtraeme Exp $	*/
+
+/*
+ * Copyright (c) 2005, 2006 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Julio M. Merino Vidal, developed as part of Google's Summer of Code
+ * 2005 program.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: dehumanize_number.c,v 1.2 2007/12/14 17:32:47 xtraeme Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+#include <inttypes.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <limits.h>
+
+/*
+ * Converts the number given in 'str', which may be given in a humanized
+ * form (as described in humanize_number(3), but with some limitations),
+ * to an int64_t without units.
+ * In case of success, 0 is returned and *size holds the value.
+ * Otherwise, -1 is returned and *size is untouched.
+ *
+ * TODO: Internationalization, SI units.
+ */
+int
+dehumanize_number(const char *str, int64_t *size)
+{
+	char *ep, unit;
+	const char *delimit;
+	long multiplier;
+	long long tmp, tmp2;
+	size_t len;
+
+	len = strlen(str);
+	if (len == 0) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	multiplier = 1;
+
+	unit = str[len - 1];
+	if (isalpha((unsigned char)unit)) {
+		switch (tolower((unsigned char)unit)) {
+		case 'b':
+			multiplier = 1;
+			break;
+
+		case 'k':
+			multiplier = 1024;
+			break;
+
+		case 'm':
+			multiplier = 1024 * 1024;
+			break;
+
+		case 'g':
+			multiplier = 1024 * 1024 * 1024;
+			break;
+
+		default:
+			errno = EINVAL;
+			return -1; /* Invalid suffix. */
+		}
+
+		delimit = &str[len - 1];
+	} else
+		delimit = NULL;
+
+	errno = 0;
+	tmp = strtoll(str, &ep, 10);
+	if (str[0] == '\0' || (ep != delimit && *ep != '\0'))
+		return -1; /* Not a number. */
+	else if (errno == ERANGE && (tmp == LLONG_MAX || tmp == LLONG_MIN))
+		return -1; /* Out of range. */
+
+	tmp2 = tmp * multiplier;
+	tmp2 = tmp2 / multiplier;
+	if (tmp != tmp2) {
+		errno = ERANGE;
+		return -1; /* Out of range. */
+	}
+	*size = tmp * multiplier;
+
+	return 0;
+}

src/err.c

@@ -1,5 +1,6 @@
 /*
- * Copyright (C) 2006 Robert Millan
+ * Copyright © 2006 Robert Millan
+ * Copyright © 2011 Guillem Jover <guillem@hadrons.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -24,49 +25,43 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <bsd/err.h>
+#include <err.h>
 #include <errno.h>
 #include <stdarg.h>
 
 void
-warnc (int code, const char *format, ...)
+warnc(int code, const char *format, ...)
 {
-  int tmp = errno;
+	va_list ap;
-  va_list ap;
-  va_start (ap, format);
 
-  errno = code;
+	va_start(ap, format);
-  warn (format, ap);
+	vwarnc(code, format, ap);
-  errno = tmp;
+	va_end(ap);
-
-  va_end (ap);
 }
 
 void
-vwarnc (int code, const char *format, va_list ap)
+vwarnc(int code, const char *format, va_list ap)
 {
-  int tmp = errno;
+	int tmp = errno;
 
-  errno = code;
+	errno = code;
-  vwarn (format, ap);
+	vwarn(format, ap);
-  errno = tmp;
+	errno = tmp;
 }
 
 void
-errc (int status, int code, const char *format, ...)
+errc(int status, int code, const char *format, ...)
 {
-  va_list ap;
+	va_list ap;
-  va_start (ap, format);
 
-  errno = code;
+	va_start(ap, format);
-  err (status, format, ap);
+	verrc(status, code, format, ap);
-
+	va_end(ap);
-  va_end (ap);
 }
 
 void
-verrc (int status, int code, const char *format, va_list ap)
+verrc(int status, int code, const char *format, va_list ap)
 {
-  errno = code;
+	errno = code;
-  verr (status, format, ap);
+	verr(status, format, ap);
 }

src/expand_number.c

@@ -0,0 +1,101 @@
+/*-
+ * Copyright (c) 2007 Eric Anderson <anderson@FreeBSD.org>
+ * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <ctype.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <libutil.h>
+#include <stdint.h>
+
+/*
+ * Convert an expression of the following forms to a uint64_t.
+ *	1) A positive decimal number.
+ *	2) A positive decimal number followed by a 'b' or 'B' (mult by 1).
+ *	3) A positive decimal number followed by a 'k' or 'K' (mult by 1 << 10).
+ *	4) A positive decimal number followed by a 'm' or 'M' (mult by 1 << 20).
+ *	5) A positive decimal number followed by a 'g' or 'G' (mult by 1 << 30).
+ *	6) A positive decimal number followed by a 't' or 'T' (mult by 1 << 40).
+ *	7) A positive decimal number followed by a 'p' or 'P' (mult by 1 << 50).
+ *	8) A positive decimal number followed by a 'e' or 'E' (mult by 1 << 60).
+ */
+int
+expand_number(const char *buf, uint64_t *num)
+{
+	uint64_t number;
+	unsigned shift;
+	char *endptr;
+
+	number = strtoumax(buf, &endptr, 0);
+
+	if (endptr == buf) {
+		/* No valid digits. */
+		errno = EINVAL;
+		return (-1);
+	}
+
+	switch (tolower((unsigned char)*endptr)) {
+	case 'e':
+		shift = 60;
+		break;
+	case 'p':
+		shift = 50;
+		break;
+	case 't':
+		shift = 40;
+		break;
+	case 'g':
+		shift = 30;
+		break;
+	case 'm':
+		shift = 20;
+		break;
+	case 'k':
+		shift = 10;
+		break;
+	case 'b':
+	case '\0': /* No unit. */
+		*num = number;
+		return (0);
+	default:
+		/* Unrecognized unit. */
+		errno = EINVAL;
+		return (-1);
+	}
+
+	if ((number << shift) >> shift != number) {
+		/* Overflow */
+		errno = ERANGE;
+		return (-1);
+	}
+
+	*num = number << shift;
+	return (0);
+}

src/fgetln.c

@@ -1,6 +1,6 @@
 /*
- * Copyright (C) 2005 Hector Garcia Alvarez
+ * Copyright © 2005 Hector Garcia Alvarez
- * Copyright (C) 2005, 2008 Guillem Jover
+ * Copyright © 2005, 2008, 2009, 2011 Guillem Jover <guillem@hadrons.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -30,21 +30,24 @@
 #include <sys/types.h>
 #include <string.h>
 
-#ifdef __GLIBC__
+#ifdef HAVE_GETLINE
 char *
-fgetln (FILE *stream, size_t *len)
+fgetln(FILE *stream, size_t *len)
 {
-	char *line = NULL;
+	static char *line = NULL;
+	static size_t line_len = 0;
 	ssize_t nread;
 
-	nread = getline (&line, len, stream);
+	nread = getline(&line, &line_len, stream);
-	if (nread == -1)
+	/* Note: the getdelim/getline API ensures nread != 0. */
+	if (nread == -1) {
+		*len = 0;
 		return NULL;
-
+	} else {
-	/* Get rid of the trailing \0, fgetln does not have it. */
+		*len = (size_t)nread;
-	(*len)--;
+		return line;
-
+	}
-	return line;
 }
+#else
+#error "Function fgetln() needs to be ported."
 #endif
-

src/flopen.c

@@ -0,0 +1,104 @@
+/*-
+ * Copyright (c) 2007 Dag-Erling Coïdan Smørgrav
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer
+ *    in this position and unchanged.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/file.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <libutil.h>
+
+int
+flopen(const char *path, int flags, ...)
+{
+	int fd, operation, serrno, trunc;
+	struct stat sb, fsb;
+	mode_t mode;
+
+#ifdef O_EXLOCK
+	flags &= ~O_EXLOCK;
+#endif
+
+	mode = 0;
+	if (flags & O_CREAT) {
+		va_list ap;
+
+		va_start(ap, flags);
+		mode = (mode_t)va_arg(ap, int); /* mode_t promoted to int */
+		va_end(ap);
+	}
+
+        operation = LOCK_EX;
+        if (flags & O_NONBLOCK)
+                operation |= LOCK_NB;
+
+	trunc = (flags & O_TRUNC);
+	flags &= ~O_TRUNC;
+
+	for (;;) {
+		if ((fd = open(path, flags, mode)) == -1)
+			/* non-existent or no access */
+			return (-1);
+		if (flock(fd, operation) == -1) {
+			/* unsupported or interrupted */
+			serrno = errno;
+			(void)close(fd);
+			errno = serrno;
+			return (-1);
+		}
+		if (stat(path, &sb) == -1) {
+			/* disappeared from under our feet */
+			(void)close(fd);
+			continue;
+		}
+		if (fstat(fd, &fsb) == -1) {
+			/* can't happen [tm] */
+			serrno = errno;
+			(void)close(fd);
+			errno = serrno;
+			return (-1);
+		}
+		if (sb.st_dev != fsb.st_dev ||
+		    sb.st_ino != fsb.st_ino) {
+			/* changed under our feet */
+			(void)close(fd);
+			continue;
+		}
+		if (trunc && ftruncate(fd, 0) != 0) {
+			/* can't happen [tm] */
+			serrno = errno;
+			(void)close(fd);
+			errno = serrno;
+			return (-1);
+		}
+		return (fd);
+	}
+}

src/fpurge.c

@@ -0,0 +1,66 @@
+/*
+ * Copyright © 2011 Guillem Jover <guillem@hadrons.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdio_ext.h>
+
+#ifdef HAVE___FPURGE
+int
+fpurge(FILE *fp)
+{
+	if (fp == NULL || fileno(fp) < 0) {
+		errno = EBADF;
+		return EOF;
+	}
+
+	__fpurge(fp);
+
+	return 0;
+}
+#else
+#error "Function fpurge() needs to be ported."
+#endif
+
+#ifdef TEST
+int
+main()
+{
+	static FILE fp_bad;
+	FILE *fp;
+
+	if (fpurge(&fp_bad) == 0)
+		return 1;
+
+	fp = fopen("/dev/zero", "r");
+	if (fpurge(fp) < 0)
+		return 1;
+
+	fclose(fp);
+
+	return 0;
+}
+#endif

src/getpeereid.c

@@ -0,0 +1,132 @@
+/*
+ * Copyright © 2010 Guillem Jover <guillem@hadrons.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include <errno.h>
+#include <unistd.h>
+
+#if defined(SO_PEERCRED)
+/* Linux and OpenBSD */
+int
+getpeereid(int s, uid_t *euid, gid_t *egid)
+{
+/* XXX: This should be autodetected at build time instead. */
+#if defined(__linux__)
+	struct ucred cred;
+#elif defined(__OpenBSD__)
+	struct sockpeercred cred;
+#endif
+	socklen_t credlen = sizeof(cred);
+	int ret;
+
+	ret = getsockopt(s, SOL_SOCKET, SO_PEERCRED, &cred, &credlen);
+	if (ret != 0)
+		return ret;
+
+	*euid = cred.uid;
+	*egid = cred.gid;
+
+	return 0;
+}
+#elif defined(LOCAL_PEERCRED)
+/* FreeBSD */
+#include <sys/ucred.h>
+
+int
+getpeereid(int s, uid_t *euid, gid_t *egid)
+{
+	struct xucred cred;
+	socklen_t credlen = sizeof(cred);
+	int ret;
+
+	ret = getsockopt(s, 0, LOCAL_PEERCRED, &cred, &credlen);
+	if (ret != 0)
+		return ret;
+	if (cred.cr_version != XUCRED_VERSION)
+		return EINVAL;
+
+	*euid = cred.cr_uid;
+	*egid = cred.cr_gid;
+
+	return 0;
+}
+#elif defined(LOCAL_PEEREID)
+/* NetBSD */
+int
+getpeereid(int s, uid_t *euid, gid_t *egid)
+{
+	struct unpcbid cred;
+	socklen_t credlen = sizeof(cred);
+	int ret;
+
+	ret = getsockopt(s, 0, LOCAL_PEEREID, &cred, &credlen);
+	if (ret != 0)
+		return ret;
+
+	*euid = cred.unp_euid;
+	*egid = cred.unp_egid;
+
+	return 0;
+}
+#elif defined(__sun)
+/* Solaris */
+int
+getpeereid(int s, uid_t *euid, gid_t *egid)
+{
+	ucred_t cred_inst;
+	ucred_t *cred = &cred_inst;
+	int ret;
+
+	ret = getpeerucred(s, &cred);
+	if (ret != 0)
+		return ret;
+
+	*euid = ucred_geteuid(cred);
+	if (*euid < 0)
+		return -1;
+	*egid = ucred_getegid(cred);
+	if (*egid < 0)
+		return -1;
+
+	return 0;
+}
+#else
+#warning "This platform needs an implementation of getpeereid()"
+int
+getpeereid(int s, uid_t *euid, gid_t *egid)
+{
+	*euid = geteuid();
+	*egid = getegid();
+
+	return 0;
+}
+#endif

src/hash/md5.c

@@ -19,7 +19,7 @@
 
 #include <sys/types.h>
 #include <string.h>
-#include <bsd/md5.h>
+#include <md5.h>
 
 #define PUT_64BIT_LE(cp, value) do {					\
 	(cp)[7] = (value) >> 56;					\

src/heapsort.c

@@ -86,7 +86,7 @@
  * Select the top of the heap and 'heapify'.  Since by far the most expensive
  * action is the call to the compar function, a considerable optimization
  * in the average case can be achieved due to the fact that k, the displaced
- * elememt, is ususally quite small, so it would be preferable to first
+ * elememt, is usually quite small, so it would be preferable to first
  * heapify, always maintaining the invariant that the larger child is copied
  * over its parent's record.
  *

src/libbsd-overlay.pc.in

@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libbsd
+Description: Utility functions from BSD systems (overlay)
+Version: @VERSION@
+URL: http://libbsd.freedesktop.org/
+Libs: -L${libdir} -lbsd
+Cflags: -isystem ${includedir}/bsd -DLIBBSD_OVERLAY

src/libbsd.map

@@ -0,0 +1,96 @@
+LIBBSD_0.0 {
+  global:
+    arc4random;
+    arc4random_stir;
+    arc4random_addrandom;
+
+    bsd_getopt;
+    optreset;
+
+    errc;
+    warnc;
+    verrc;
+    vwarnc;
+
+    fgetln;
+    fmtcheck;
+    heapsort;
+    humanize_number;
+
+    inet_net_pton; /* XXX: Already provided by glibc, remove. */
+
+    getprogname;
+    setprogname;
+
+    strlcpy;
+    strlcat;
+
+    setmode;
+    getmode;
+
+    vis;
+    strvis;
+    strvisx;
+    unvis;
+    strunvis;
+    strunvisx;
+
+    MD5Init;
+    MD5Update;
+    MD5Pad;
+    MD5Final;
+    MD5Transform;
+    MD5End;
+    MD5File;
+    MD5FileChunk;
+    MD5Data;
+
+  local:
+    *;
+};
+
+LIBBSD_0.1 {
+    strmode;
+
+    __fdnlist; /* Private symbol, but libkvm uses it. */
+    nlist;
+} LIBBSD_0.0;
+
+LIBBSD_0.2 {
+    strtonum;
+
+    strnvis;
+    strnunvis;
+
+    dehumanize_number;
+
+    readpassphrase;
+
+    flopen;
+
+    pidfile_open;
+    pidfile_write;
+    pidfile_close;
+    pidfile_remove;
+
+    setproctitle;
+
+    arc4random_buf;
+    arc4random_uniform;
+} LIBBSD_0.1;
+
+LIBBSD_0.3 {
+    reallocf;
+    getpeereid;
+
+    mergesort;
+    radixsort;
+    sradixsort;
+
+    fpurge;
+} LIBBSD_0.2;
+
+LIBBSD_0.4 {
+    closefrom;
+    expand_number;
+} LIBBSD_0.3;

src/local-elf.h

@@ -0,0 +1,196 @@
+/*
+ * Copyright © 2009 Guillem Jover <guillem@hadrons.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef LIBBSD_LOCAL_ELF_H
+#define LIBBSD_LOCAL_ELF_H
+
+#include <elf.h>
+
+#define IS_ELF(ehdr) \
+	((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
+	 (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
+	 (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
+	 (ehdr).e_ident[EI_MAG3] == ELFMAG3)
+
+#define ELF_TARG_VER	EV_CURRENT
+
+#if defined(__alpha__)
+
+#define ELF_TARG_MACH	EM_ALPHA
+#define ELF_TARG_CLASS	ELFCLASS64
+#define ELF_TARG_DATA	ELFDATA2LSB
+
+#elif defined(__amd64__)
+
+#define ELF_TARG_MACH	EM_X86_64
+#define ELF_TARG_CLASS	ELFCLASS64
+#define ELF_TARG_DATA	ELFDATA2LSB
+
+#elif defined(__arm__)
+
+#define ELF_TARG_MACH	EM_ARM
+#define ELF_TARG_CLASS	ELFCLASS32
+#if defined(__ARMEB__)
+#define ELF_TARG_DATA	ELFDATA2MSB
+#else
+#define ELF_TARG_DATA	ELFDATA2LSB
+#endif
+
+#elif defined(__avr32__)
+
+#ifndef EM_AVR32
+#define EM_AVR32	0x18ad
+#endif
+#define ELF_TARG_MACH	EM_AVR32
+#define ELF_TARG_CLASS	ELFCLASS32
+#if defined(__LITTLE_ENDIAN__)
+#define ELF_TARG_DATA	ELFDATA2LSB
+#elif defined(__BIG_ENDIAN__)
+#define ELF_TARG_DATA	ELFDATA2LMSB
+#else
+#error Unknown AVR32 endianness
+#endif
+
+#elif defined(__hppa__)
+
+#define ELF_TARG_MACH	EM_PARISC
+#define ELF_TARG_CLASS	ELFCLASS32
+#define ELF_TARG_DATA	ELFDATA2MSB
+
+#elif defined(__i386__)
+
+#define ELF_TARG_MACH	EM_386
+#define ELF_TARG_CLASS	ELFCLASS32
+#define ELF_TARG_DATA	ELFDATA2LSB
+
+#elif defined(__ia64__)
+
+#define ELF_TARG_MACH	EM_IA_64
+#define ELF_TARG_CLASS	ELFCLASS64
+#define ELF_TARG_DATA	ELFDATA2LSB
+
+#elif defined(__m32r__)
+
+#define ELF_TARG_MACH	EM_M32R
+#define ELF_TARG_CLASS	ELFCLASS32
+#if defined(__LITTLE_ENDIAN__)
+#define ELF_TARG_DATA	ELFDATA2LSB
+#elif defined(__BIG_ENDIAN__)
+#define ELF_TARG_DATA	ELFDATA2MSB
+#else
+#error Unknown M32R endianness
+#endif
+
+#elif defined(__m68k__)
+
+#define ELF_TARG_MACH	EM_68K
+#define ELF_TARG_CLASS	ELFCLASS32
+#define ELF_TARG_DATA	ELFDATA2MSB
+
+#elif defined(__mips__)
+
+#define ELF_TARG_MACH	EM_MIPS
+#define ELF_TARG_CLASS	ELFCLASS32
+#if defined(__MIPSEB__)
+#define ELF_TARG_DATA	ELFDATA2MSB
+#else
+#define ELF_TARG_DATA	ELFDATA2LSB
+#endif
+
+#elif defined(__powerpc__)
+
+#define ELF_TARG_MACH	EM_PPC
+#define ELF_TARG_CLASS	ELFCLASS32
+#define ELF_TARG_DATA	ELFDATA2MSB
+
+#elif defined(__powerpc64__)
+
+#define ELF_TARG_MACH	EM_PPC64
+#define ELF_TARG_CLASS	ELFCLASS64
+#define ELF_TARG_DATA	ELFDATA2MSB
+
+#elif defined(__sparc__)
+
+#if defined(__arch64__)
+#define ELF_TARG_MACH	EM_SPARCV9
+#define ELF_TARG_CLASS	ELFCLASS64
+#else
+#define ELF_TARG_MACH	EM_SPARC
+#define ELF_TARG_CLASS	ELFCLASS32
+#endif
+#define ELF_TARG_DATA	ELFDATA2MSB
+
+#elif defined(__sh__)
+
+#define ELF_TARG_MACH	EM_SH
+#define ELF_TARG_CLASS	ELFCLASS32
+#if defined(__LITTLE_ENDIAN__)
+#define ELF_TARG_DATA	ELFDATA2LSB
+#elif defined(__BIG_ENDIAN__)
+#define ELF_TARG_DATA	ELFDATA2LMSB
+#else
+#error Unknown SH endianness
+#endif
+
+#elif defined(__s390__)
+
+#define ELF_TARG_MACH	EM_S390
+#if defined(__s390x__)
+#define ELF_TARG_CLASS	ELFCLASS64
+#else
+#define ELF_TARG_CLASS	ELFCLASS32
+#endif
+#define ELF_TARG_DATA	ELFDATA2MSB
+
+#else
+
+#error Unknown ELF machine type
+
+#endif
+
+#if ELF_TARG_CLASS == ELFCLASS32
+#define ELF_ST_BIND	ELF32_ST_BIND
+#define ELF_ST_TYPE	ELF32_ST_TYPE
+#define Elf_Word	Elf32_Word
+#define Elf_Sword	Elf32_Sword
+#define Elf_Sym		Elf32_Sym
+#define Elf_Off		Elf32_Off
+#define Elf_Shdr	Elf32_Shdr
+#define Elf_Ehdr	Elf32_Ehdr
+#elif ELF_TARG_CLASS == ELFCLASS64
+#define ELF_ST_BIND	ELF64_ST_BIND
+#define ELF_ST_TYPE	ELF64_ST_TYPE
+#define Elf_Word	Elf64_Word
+#define Elf_Sword	Elf64_Sword
+#define Elf_Sym		Elf64_Sym
+#define Elf_Off		Elf64_Off
+#define Elf_Shdr	Elf64_Shdr
+#define Elf_Ehdr	Elf64_Ehdr
+#else
+#error Unknown ELF class
+#endif
+
+#endif

src/merge.c

@@ -0,0 +1,351 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Peter McIlroy.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)merge.c	8.2 (Berkeley) 2/14/94";
+#endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * Hybrid exponential search/linear search merge sort with hybrid
+ * natural/pairwise first pass.  Requires about .3% more comparisons
+ * for random data than LSMS with pairwise first pass alone.
+ * It works for objects as small as two bytes.
+ */
+
+#define NATURAL
+#define THRESHOLD 16	/* Best choice for natural merge cut-off. */
+
+/* #define NATURAL to get hybrid natural merge.
+ * (The default is pairwise merging.)
+ */
+
+#include <sys/types.h>
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+static void setup(u_char *, u_char *, size_t, size_t,
+    int (*)(const void *, const void *));
+static void insertionsort(u_char *, size_t, size_t,
+    int (*)(const void *, const void *));
+
+#define ISIZE sizeof(int)
+#define PSIZE sizeof(u_char *)
+#define ICOPY_LIST(src, dst, last)				\
+	do							\
+	*(int*)dst = *(int*)src, src += ISIZE, dst += ISIZE;	\
+	while(src < last)
+#define ICOPY_ELT(src, dst, i)					\
+	do							\
+	*(int*) dst = *(int*) src, src += ISIZE, dst += ISIZE;	\
+	while (i -= ISIZE)
+
+#define CCOPY_LIST(src, dst, last)		\
+	do					\
+		*dst++ = *src++;		\
+	while (src < last)
+#define CCOPY_ELT(src, dst, i)			\
+	do					\
+		*dst++ = *src++;		\
+	while (i -= 1)
+
+/*
+ * Find the next possible pointer head.  (Trickery for forcing an array
+ * to do double duty as a linked list when objects do not align with word
+ * boundaries.
+ */
+/* Assumption: PSIZE is a power of 2. */
+#define EVAL(p) (u_char **)						\
+	((u_char *)0 +							\
+	    (((u_char *)p + PSIZE - 1 - (u_char *) 0) & ~(PSIZE - 1)))
+
+/*
+ * Arguments are as for qsort.
+ */
+int
+mergesort(base, nmemb, size, cmp)
+	void *base;
+	size_t nmemb;
+	size_t size;
+	int (*cmp)(const void *, const void *);
+{
+	size_t i;
+	int sense;
+	int big, iflag;
+	u_char *f1, *f2, *t, *b, *tp2, *q, *l1, *l2;
+	u_char *list2, *list1, *p2, *p, *last, **p1;
+
+	if (size < PSIZE / 2) {		/* Pointers must fit into 2 * size. */
+		errno = EINVAL;
+		return (-1);
+	}
+
+	if (nmemb == 0)
+		return (0);
+
+	/*
+	 * XXX
+	 * Stupid subtraction for the Cray.
+	 */
+	iflag = 0;
+	if (!(size % ISIZE) && !(((char *)base - (char *)0) % ISIZE))
+		iflag = 1;
+
+	if ((list2 = malloc(nmemb * size + PSIZE)) == NULL)
+		return (-1);
+
+	list1 = base;
+	setup(list1, list2, nmemb, size, cmp);
+	last = list2 + nmemb * size;
+	i = big = 0;
+	while (*EVAL(list2) != last) {
+	    l2 = list1;
+	    p1 = EVAL(list1);
+	    for (tp2 = p2 = list2; p2 != last; p1 = EVAL(l2)) {
+	    	p2 = *EVAL(p2);
+	    	f1 = l2;
+	    	f2 = l1 = list1 + (p2 - list2);
+	    	if (p2 != last)
+	    		p2 = *EVAL(p2);
+	    	l2 = list1 + (p2 - list2);
+	    	while (f1 < l1 && f2 < l2) {
+	    		if ((*cmp)(f1, f2) <= 0) {
+	    			q = f2;
+	    			b = f1, t = l1;
+	    			sense = -1;
+	    		} else {
+	    			q = f1;
+	    			b = f2, t = l2;
+	    			sense = 0;
+	    		}
+	    		if (!big) {	/* here i = 0 */
+				while ((b += size) < t && cmp(q, b) >sense)
+	    				if (++i == 6) {
+	    					big = 1;
+	    					goto EXPONENTIAL;
+	    				}
+	    		} else {
+EXPONENTIAL:	    		for (i = size; ; i <<= 1)
+	    				if ((p = (b + i)) >= t) {
+	    					if ((p = t - size) > b &&
+						    (*cmp)(q, p) <= sense)
+	    						t = p;
+	    					else
+	    						b = p;
+	    					break;
+	    				} else if ((*cmp)(q, p) <= sense) {
+	    					t = p;
+	    					if (i == size)
+	    						big = 0;
+	    					goto FASTCASE;
+	    				} else
+	    					b = p;
+				while (t > b+size) {
+	    				i = (((t - b) / size) >> 1) * size;
+	    				if ((*cmp)(q, p = b + i) <= sense)
+	    					t = p;
+	    				else
+	    					b = p;
+	    			}
+	    			goto COPY;
+FASTCASE:	    		while (i > size)
+	    				if ((*cmp)(q,
+	    					p = b + (i >>= 1)) <= sense)
+	    					t = p;
+	    				else
+	    					b = p;
+COPY:	    			b = t;
+	    		}
+	    		i = size;
+	    		if (q == f1) {
+	    			if (iflag) {
+	    				ICOPY_LIST(f2, tp2, b);
+	    				ICOPY_ELT(f1, tp2, i);
+	    			} else {
+	    				CCOPY_LIST(f2, tp2, b);
+	    				CCOPY_ELT(f1, tp2, i);
+	    			}
+	    		} else {
+	    			if (iflag) {
+	    				ICOPY_LIST(f1, tp2, b);
+	    				ICOPY_ELT(f2, tp2, i);
+	    			} else {
+	    				CCOPY_LIST(f1, tp2, b);
+	    				CCOPY_ELT(f2, tp2, i);
+	    			}
+	    		}
+	    	}
+	    	if (f2 < l2) {
+	    		if (iflag)
+	    			ICOPY_LIST(f2, tp2, l2);
+	    		else
+	    			CCOPY_LIST(f2, tp2, l2);
+	    	} else if (f1 < l1) {
+	    		if (iflag)
+	    			ICOPY_LIST(f1, tp2, l1);
+	    		else
+	    			CCOPY_LIST(f1, tp2, l1);
+	    	}
+	    	*p1 = l2;
+	    }
+	    tp2 = list1;	/* swap list1, list2 */
+	    list1 = list2;
+	    list2 = tp2;
+	    last = list2 + nmemb*size;
+	}
+	if (base == list2) {
+		memmove(list2, list1, nmemb*size);
+		list2 = list1;
+	}
+	free(list2);
+	return (0);
+}
+
+#define	swap(a, b) {					\
+		s = b;					\
+		i = size;				\
+		do {					\
+			tmp = *a; *a++ = *s; *s++ = tmp; \
+		} while (--i);				\
+		a -= size;				\
+	}
+#define reverse(bot, top) {				\
+	s = top;					\
+	do {						\
+		i = size;				\
+		do {					\
+			tmp = *bot; *bot++ = *s; *s++ = tmp; \
+		} while (--i);				\
+		s -= size2;				\
+	} while(bot < s);				\
+}
+
+/*
+ * Optional hybrid natural/pairwise first pass.  Eats up list1 in runs of
+ * increasing order, list2 in a corresponding linked list.  Checks for runs
+ * when THRESHOLD/2 pairs compare with same sense.  (Only used when NATURAL
+ * is defined.  Otherwise simple pairwise merging is used.)
+ */
+void
+setup(list1, list2, n, size, cmp)
+	size_t n, size;
+	int (*cmp)(const void *, const void *);
+	u_char *list1, *list2;
+{
+	int i, length, size2, tmp, sense;
+	u_char *f1, *f2, *s, *l2, *last, *p2;
+
+	size2 = size*2;
+	if (n <= 5) {
+		insertionsort(list1, n, size, cmp);
+		*EVAL(list2) = (u_char*) list2 + n*size;
+		return;
+	}
+	/*
+	 * Avoid running pointers out of bounds; limit n to evens
+	 * for simplicity.
+	 */
+	i = 4 + (n & 1);
+	insertionsort(list1 + (n - i) * size, i, size, cmp);
+	last = list1 + size * (n - i);
+	*EVAL(list2 + (last - list1)) = list2 + n * size;
+
+#ifdef NATURAL
+	p2 = list2;
+	f1 = list1;
+	sense = (cmp(f1, f1 + size) > 0);
+	for (; f1 < last; sense = !sense) {
+		length = 2;
+					/* Find pairs with same sense. */
+		for (f2 = f1 + size2; f2 < last; f2 += size2) {
+			if ((cmp(f2, f2+ size) > 0) != sense)
+				break;
+			length += 2;
+		}
+		if (length < THRESHOLD) {		/* Pairwise merge */
+			do {
+				p2 = *EVAL(p2) = f1 + size2 - list1 + list2;
+				if (sense > 0)
+					swap (f1, f1 + size);
+			} while ((f1 += size2) < f2);
+		} else {				/* Natural merge */
+			l2 = f2;
+			for (f2 = f1 + size2; f2 < l2; f2 += size2) {
+				if ((cmp(f2-size, f2) > 0) != sense) {
+					p2 = *EVAL(p2) = f2 - list1 + list2;
+					if (sense > 0)
+						reverse(f1, f2-size);
+					f1 = f2;
+				}
+			}
+			if (sense > 0)
+				reverse (f1, f2-size);
+			f1 = f2;
+			if (f2 < last || cmp(f2 - size, f2) > 0)
+				p2 = *EVAL(p2) = f2 - list1 + list2;
+			else
+				p2 = *EVAL(p2) = list2 + n*size;
+		}
+	}
+#else		/* pairwise merge only. */
+	for (f1 = list1, p2 = list2; f1 < last; f1 += size2) {
+		p2 = *EVAL(p2) = p2 + size2;
+		if (cmp (f1, f1 + size) > 0)
+			swap(f1, f1 + size);
+	}
+#endif /* NATURAL */
+}
+
+/*
+ * This is to avoid out-of-bounds addresses in sorting the
+ * last 4 elements.
+ */
+static void
+insertionsort(a, n, size, cmp)
+	u_char *a;
+	size_t n, size;
+	int (*cmp)(const void *, const void *);
+{
+	u_char *ai, *s, *t, *u, tmp;
+	int i;
+
+	for (ai = a+size; --n >= 1; ai += size)
+		for (t = ai; t > a; t -= size) {
+			u = t - size;
+			if (cmp(u, t) <= 0)
+				break;
+			swap(u, t);
+		}
+}

src/nlist.c

@@ -0,0 +1,422 @@
+/*
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)nlist.c	8.1 (Berkeley) 6/4/93";
+#endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+
+#include <sys/param.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/file.h>
+#include <arpa/inet.h>
+
+#include <errno.h>
+#include <a.out.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#if !defined(__NO_A_OUT_SUPPORT)
+#define _NLIST_DO_AOUT
+#endif
+#define _NLIST_DO_ELF
+
+#ifdef _NLIST_DO_ELF
+#include "local-elf.h"
+#endif
+
+#define SIZE_T_MAX 0xffffffffU
+
+#ifdef _NLIST_DO_AOUT
+static int __aout_fdnlist(int, struct nlist *);
+#ifndef N_SYMSIZE
+#define N_SYMSIZE(a)	((a).a_syms)
+#endif
+#endif
+#ifdef _NLIST_DO_ELF
+static int __elf_fdnlist(int, struct nlist *);
+#endif
+
+/* FIXME: This function is used by libkvm0, so we need to export it.
+   It is not declared in the include files though. */
+int __fdnlist(int, struct nlist *);
+
+int
+nlist(name, list)
+	const char *name;
+	struct nlist *list;
+{
+	int fd, n;
+
+	fd = open(name, O_RDONLY, 0);
+	if (fd < 0)
+		return (-1);
+	n = __fdnlist(fd, list);
+	(void)close(fd);
+	return (n);
+}
+
+static struct nlist_handlers {
+	int	(*fn)(int fd, struct nlist *list);
+} nlist_fn[] = {
+#ifdef _NLIST_DO_AOUT
+	{ __aout_fdnlist },
+#endif
+#ifdef _NLIST_DO_ELF
+	{ __elf_fdnlist },
+#endif
+};
+
+int
+__fdnlist(fd, list)
+	int fd;
+	struct nlist *list;
+{
+	int n = -1, i;
+
+	for (i = 0; i < sizeof(nlist_fn) / sizeof(nlist_fn[0]); i++) {
+		n = (nlist_fn[i].fn)(fd, list);
+		if (n != -1)
+			break;
+	}
+	return (n);
+}
+
+#define	ISLAST(p)	(p->n_un.n_name == 0 || p->n_un.n_name[0] == 0)
+
+#ifdef _NLIST_DO_AOUT
+static int
+__aout_fdnlist(fd, list)
+	int fd;
+	struct nlist *list;
+{
+	struct nlist *p, *symtab;
+	caddr_t strtab, a_out_mmap;
+	off_t stroff, symoff;
+	u_long symsize;
+	int nent;
+	struct exec * exec;
+	struct stat st;
+
+	/* check that file is at least as large as struct exec! */
+	if ((fstat(fd, &st) < 0) || (st.st_size < sizeof(struct exec)))
+		return (-1);
+
+	/* Check for files too large to mmap. */
+	if (st.st_size > SIZE_T_MAX) {
+		errno = EFBIG;
+		return (-1);
+	}
+
+	/*
+	 * Map the whole a.out file into our address space.
+	 * We then find the string table within this area.
+	 * We do not just mmap the string table, as it probably
+	 * does not start at a page boundary - we save ourselves a
+	 * lot of nastiness by mmapping the whole file.
+	 *
+	 * This gives us an easy way to randomly access all the strings,
+	 * without making the memory allocation permanent as with
+	 * malloc/free (i.e., munmap will return it to the system).
+	 */
+	a_out_mmap = mmap(NULL, (size_t)st.st_size, PROT_READ, MAP_PRIVATE, fd, (off_t)0);
+	if (a_out_mmap == MAP_FAILED)
+		return (-1);
+
+	exec = (struct exec *)a_out_mmap;
+	if (N_BADMAG(*exec)) {
+		munmap(a_out_mmap, (size_t)st.st_size);
+		return (-1);
+	}
+
+	symoff = N_SYMOFF(*exec);
+	symsize = N_SYMSIZE(*exec);
+	stroff = symoff + symsize;
+
+	/* find the string table in our mmapped area */
+	strtab = a_out_mmap + stroff;
+	symtab = (struct nlist *)(a_out_mmap + symoff);
+
+	/*
+	 * clean out any left-over information for all valid entries.
+	 * Type and value defined to be 0 if not found; historical
+	 * versions cleared other and desc as well.  Also figure out
+	 * the largest string length so don't read any more of the
+	 * string table than we have to.
+	 *
+	 * XXX clearing anything other than n_type and n_value violates
+	 * the semantics given in the man page.
+	 */
+	nent = 0;
+	for (p = list; !ISLAST(p); ++p) {
+		p->n_type = 0;
+		p->n_other = 0;
+		p->n_desc = 0;
+		p->n_value = 0;
+		++nent;
+	}
+
+	while (symsize > 0) {
+		int soff;
+
+		symsize-= sizeof(struct nlist);
+		soff = symtab->n_un.n_strx;
+
+
+		if (soff != 0 && (symtab->n_type & N_STAB) == 0)
+			for (p = list; !ISLAST(p); p++)
+				if (!strcmp(&strtab[soff], p->n_un.n_name)) {
+					p->n_value = symtab->n_value;
+					p->n_type = symtab->n_type;
+					p->n_desc = symtab->n_desc;
+					p->n_other = symtab->n_other;
+					if (--nent <= 0)
+						break;
+				}
+		symtab++;
+	}
+	munmap(a_out_mmap, (size_t)st.st_size);
+	return (nent);
+}
+#endif
+
+#ifdef _NLIST_DO_ELF
+static void elf_sym_to_nlist(struct nlist *, Elf_Sym *, Elf_Shdr *, int);
+
+/*
+ * __elf_is_okay__ - Determine if ehdr really
+ * is ELF and valid for the target platform.
+ *
+ * WARNING:  This is NOT an ELF ABI function and
+ * as such its use should be restricted.
+ */
+static int
+__elf_is_okay__(ehdr)
+	Elf_Ehdr *ehdr;
+{
+	int retval = 0;
+	/*
+	 * We need to check magic, class size, endianess,
+	 * and version before we look at the rest of the
+	 * Elf_Ehdr structure.  These few elements are
+	 * represented in a machine independent fashion.
+	 */
+	if (IS_ELF(*ehdr) &&
+	    ehdr->e_ident[EI_CLASS] == ELF_TARG_CLASS &&
+	    ehdr->e_ident[EI_DATA] == ELF_TARG_DATA &&
+	    ehdr->e_ident[EI_VERSION] == ELF_TARG_VER) {
+
+		/* Now check the machine dependent header */
+		if (ehdr->e_machine == ELF_TARG_MACH &&
+		    ehdr->e_version == ELF_TARG_VER)
+			retval = 1;
+	}
+	return retval;
+}
+
+static int
+__elf_fdnlist(fd, list)
+	int fd;
+	struct nlist *list;
+{
+	struct nlist *p;
+	Elf_Off symoff = 0, symstroff = 0;
+	Elf_Word symsize = 0, symstrsize = 0;
+	Elf_Sword cc, i;
+	int nent = -1;
+	int errsave;
+	Elf_Sym sbuf[1024];
+	Elf_Sym *s;
+	Elf_Ehdr ehdr;
+	char *strtab = NULL;
+	Elf_Shdr *shdr = NULL;
+	Elf_Word shdr_size;
+	void *base;
+	struct stat st;
+
+	/* Make sure obj is OK */
+	if (lseek(fd, (off_t)0, SEEK_SET) == -1 ||
+	    read(fd, &ehdr, sizeof(Elf_Ehdr)) != sizeof(Elf_Ehdr) ||
+	    !__elf_is_okay__(&ehdr) ||
+	    fstat(fd, &st) < 0)
+		return (-1);
+
+	/* calculate section header table size */
+	shdr_size = ehdr.e_shentsize * ehdr.e_shnum;
+
+	/* Make sure it's not too big to mmap */
+	if (shdr_size > SIZE_T_MAX) {
+		errno = EFBIG;
+		return (-1);
+	}
+
+	/* mmap section header table */
+	base = mmap(NULL, (size_t)shdr_size, PROT_READ, 0, fd,
+	    (off_t)ehdr.e_shoff);
+	if (base == MAP_FAILED)
+		return (-1);
+	shdr = (Elf_Shdr *)base;
+
+	/*
+	 * Find the symbol table entry and it's corresponding
+	 * string table entry.	Version 1.1 of the ABI states
+	 * that there is only one symbol table but that this
+	 * could change in the future.
+	 */
+	for (i = 0; i < ehdr.e_shnum; i++) {
+		if (shdr[i].sh_type == SHT_SYMTAB) {
+			symoff = shdr[i].sh_offset;
+			symsize = shdr[i].sh_size;
+			symstroff = shdr[shdr[i].sh_link].sh_offset;
+			symstrsize = shdr[shdr[i].sh_link].sh_size;
+			break;
+		}
+	}
+
+	/* Check for files too large to mmap. */
+	if (symstrsize > SIZE_T_MAX) {
+		errno = EFBIG;
+		goto done;
+	}
+	/*
+	 * Map string table into our address space.  This gives us
+	 * an easy way to randomly access all the strings, without
+	 * making the memory allocation permanent as with malloc/free
+	 * (i.e., munmap will return it to the system).
+	 */
+	base = mmap(NULL, (size_t)symstrsize, PROT_READ, 0, fd,
+	    (off_t)symstroff);
+	if (base == MAP_FAILED)
+		goto done;
+	strtab = (char *)base;
+
+	/*
+	 * clean out any left-over information for all valid entries.
+	 * Type and value defined to be 0 if not found; historical
+	 * versions cleared other and desc as well.  Also figure out
+	 * the largest string length so don't read any more of the
+	 * string table than we have to.
+	 *
+	 * XXX clearing anything other than n_type and n_value violates
+	 * the semantics given in the man page.
+	 */
+	nent = 0;
+	for (p = list; !ISLAST(p); ++p) {
+		p->n_type = 0;
+		p->n_other = 0;
+		p->n_desc = 0;
+		p->n_value = 0;
+		++nent;
+	}
+
+	/* Don't process any further if object is stripped. */
+	if (symoff == 0)
+		goto done;
+		
+	if (lseek(fd, (off_t) symoff, SEEK_SET) == -1) {
+		nent = -1;
+		goto done;
+	}
+
+	while (symsize > 0 && nent > 0) {
+		cc = MIN(symsize, sizeof(sbuf));
+		if (read(fd, sbuf, cc) != cc)
+			break;
+		symsize -= cc;
+		for (s = sbuf; cc > 0 && nent > 0; ++s, cc -= sizeof(*s)) {
+			char *name;
+			struct nlist *p;
+
+			name = strtab + s->st_name;
+			if (name[0] == '\0')
+				continue;
+			for (p = list; !ISLAST(p); p++) {
+				if ((p->n_un.n_name[0] == '_' &&
+				    strcmp(name, p->n_un.n_name+1) == 0)
+				    || strcmp(name, p->n_un.n_name) == 0) {
+					elf_sym_to_nlist(p, s, shdr,
+					    ehdr.e_shnum);
+					if (--nent <= 0)
+						break;
+				}
+			}
+		}
+	}
+  done:
+	errsave = errno;
+	if (strtab != NULL)
+		munmap(strtab, symstrsize);
+	if (shdr != NULL)
+		munmap(shdr, shdr_size);
+	errno = errsave;
+	return (nent);
+}
+
+/*
+ * Convert an Elf_Sym into an nlist structure.  This fills in only the
+ * n_value and n_type members.
+ */
+static void
+elf_sym_to_nlist(nl, s, shdr, shnum)
+	struct nlist *nl;
+	Elf_Sym *s;
+	Elf_Shdr *shdr;
+	int shnum;
+{
+	nl->n_value = s->st_value;
+
+	switch (s->st_shndx) {
+	case SHN_UNDEF:
+	case SHN_COMMON:
+		nl->n_type = N_UNDF;
+		break;
+	case SHN_ABS:
+		nl->n_type = ELF_ST_TYPE(s->st_info) == STT_FILE ?
+		    N_FN : N_ABS;
+		break;
+	default:
+		if (s->st_shndx >= shnum)
+			nl->n_type = N_UNDF;
+		else {
+			Elf_Shdr *sh = shdr + s->st_shndx;
+
+			nl->n_type = sh->sh_type == SHT_PROGBITS ?
+			    (sh->sh_flags & SHF_WRITE ? N_DATA : N_TEXT) :
+			    (sh->sh_type == SHT_NOBITS ? N_BSS : N_UNDF);
+		}
+		break;
+	}
+
+	if (ELF_ST_BIND(s->st_info) == STB_GLOBAL ||
+	    ELF_ST_BIND(s->st_info) == STB_WEAK)
+		nl->n_type |= N_EXT;
+}
+#endif /* _NLIST_DO_ELF */

src/pidfile.c

@@ -0,0 +1,255 @@
+/*-
+ * Copyright (c) 2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/file.h>
+#include <sys/stat.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <time.h>
+#include <err.h>
+#include <errno.h>
+#include <libutil.h>
+
+static int _pidfile_remove(struct pidfh *pfh, int freeit);
+
+static int
+pidfile_verify(struct pidfh *pfh)
+{
+	struct stat sb;
+
+	if (pfh == NULL || pfh->pf_fd == -1)
+		return (EINVAL);
+	/*
+	 * Check remembered descriptor.
+	 */
+	if (fstat(pfh->pf_fd, &sb) == -1)
+		return (errno);
+	if (sb.st_dev != pfh->pf_dev || sb.st_ino != pfh->pf_ino)
+		return (EINVAL);
+	return (0);
+}
+
+static int
+pidfile_read(const char *path, pid_t *pidptr)
+{
+	char buf[16], *endptr;
+	int error, fd, i;
+
+	fd = open(path, O_RDONLY);
+	if (fd == -1)
+		return (errno);
+
+	i = read(fd, buf, sizeof(buf) - 1);
+	error = errno;	/* Remember errno in case close() wants to change it. */
+	close(fd);
+	if (i == -1)
+		return (error);
+	else if (i == 0)
+		return (EAGAIN);
+	buf[i] = '\0';
+
+	*pidptr = strtol(buf, &endptr, 10);
+	if (endptr != &buf[i])
+		return (EINVAL);
+
+	return (0);
+}
+
+struct pidfh *
+pidfile_open(const char *path, mode_t mode, pid_t *pidptr)
+{
+	struct pidfh *pfh;
+	struct stat sb;
+	int error, fd, len, count;
+	struct timespec rqtp;
+
+	pfh = malloc(sizeof(*pfh));
+	if (pfh == NULL)
+		return (NULL);
+
+	if (path == NULL) {
+		len = asprintf(&pfh->pf_path, "/var/run/%s.pid", getprogname());
+		if (len < 0) {
+			free(pfh);
+			return (NULL);
+		}
+	} else
+		pfh->pf_path = strdup(path);
+
+	/*
+	 * Open the PID file and obtain exclusive lock.
+	 * We truncate PID file here only to remove old PID immediately,
+	 * PID file will be truncated again in pidfile_write(), so
+	 * pidfile_write() can be called multiple times.
+	 */
+	fd = flopen(pfh->pf_path,
+	    O_WRONLY | O_CREAT | O_TRUNC | O_NONBLOCK, mode);
+	if (fd == -1) {
+		count = 0;
+		rqtp.tv_sec = 0;
+		rqtp.tv_nsec = 5000000;
+		if (errno == EWOULDBLOCK && pidptr != NULL) {
+		again:
+			errno = pidfile_read(pfh->pf_path, pidptr);
+			if (errno == 0)
+				errno = EEXIST;
+			else if (errno == EAGAIN) {
+				if (++count <= 3) {
+					nanosleep(&rqtp, 0);
+					goto again;
+				}
+			}
+		}
+		free(pfh->pf_path);
+		free(pfh);
+		return (NULL);
+	}
+	/*
+	 * Remember file information, so in pidfile_write() we are sure we write
+	 * to the proper descriptor.
+	 */
+	if (fstat(fd, &sb) == -1) {
+		error = errno;
+		unlink(pfh->pf_path);
+		free(pfh->pf_path);
+		close(fd);
+		free(pfh);
+		errno = error;
+		return (NULL);
+	}
+
+	pfh->pf_fd = fd;
+	pfh->pf_dev = sb.st_dev;
+	pfh->pf_ino = sb.st_ino;
+
+	return (pfh);
+}
+
+int
+pidfile_write(struct pidfh *pfh)
+{
+	char pidstr[16];
+	int error, fd;
+
+	/*
+	 * Check remembered descriptor, so we don't overwrite some other
+	 * file if pidfile was closed and descriptor reused.
+	 */
+	errno = pidfile_verify(pfh);
+	if (errno != 0) {
+		/*
+		 * Don't close descriptor, because we are not sure if it's ours.
+		 */
+		return (-1);
+	}
+	fd = pfh->pf_fd;
+
+	/*
+	 * Truncate PID file, so multiple calls of pidfile_write() are allowed.
+	 */
+	if (ftruncate(fd, 0) == -1) {
+		error = errno;
+		_pidfile_remove(pfh, 0);
+		errno = error;
+		return (-1);
+	}
+
+	snprintf(pidstr, sizeof(pidstr), "%u", getpid());
+	if (pwrite(fd, pidstr, strlen(pidstr), 0) != (ssize_t)strlen(pidstr)) {
+		error = errno;
+		_pidfile_remove(pfh, 0);
+		errno = error;
+		return (-1);
+	}
+
+	return (0);
+}
+
+int
+pidfile_close(struct pidfh *pfh)
+{
+	int error;
+
+	error = pidfile_verify(pfh);
+	if (error != 0) {
+		errno = error;
+		return (-1);
+	}
+
+	if (close(pfh->pf_fd) == -1)
+		error = errno;
+	free(pfh->pf_path);
+	free(pfh);
+	if (error != 0) {
+		errno = error;
+		return (-1);
+	}
+	return (0);
+}
+
+static int
+_pidfile_remove(struct pidfh *pfh, int freeit)
+{
+	int error;
+
+	error = pidfile_verify(pfh);
+	if (error != 0) {
+		errno = error;
+		return (-1);
+	}
+
+	if (unlink(pfh->pf_path) == -1)
+		error = errno;
+	if (close(pfh->pf_fd) == -1) {
+		if (error == 0)
+			error = errno;
+	}
+	if (freeit) {
+		free(pfh->pf_path);
+		free(pfh);
+	} else
+		pfh->pf_fd = -1;
+	if (error != 0) {
+		errno = error;
+		return (-1);
+	}
+	return (0);
+}
+
+int
+pidfile_remove(struct pidfh *pfh)
+{
+
+	return (_pidfile_remove(pfh, 1));
+}

src/progname.c

@@ -1,5 +1,6 @@
 /*
- * Copyright (C) 2006 Robert Millan
+ * Copyright © 2006 Robert Millan
+ * Copyright © 2010-2012 Guillem Jover <guillem@hadrons.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -28,18 +29,39 @@
   Rejected in glibc (http://sourceware.org/ml/libc-alpha/2006-03/msg00125.html)
 */
 
-#include <bsd/stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
 
-static char *__progname = NULL;
+#ifdef HAVE___PROGNAME
+extern const char *__progname;
+#else
+static const char *__progname = NULL;
+#endif
 
-char *
+const char *
-getprogname ()
+getprogname(void)
 {
-  return __progname;
+#if defined(HAVE_PROGRAM_INVOCATION_SHORT_NAME)
+	if (__progname == NULL)
+		__progname = program_invocation_short_name;
+#elif defined(HAVE_GETEXECNAME)
+	/* getexecname(3) returns an absolute pathname, normalize it. */
+	if (__progname == NULL)
+		setprogname(getexecname());
+#endif
+
+	return __progname;
 }
 
 void
-setprogname (char *new)
+setprogname(const char *progname)
 {
-  __progname = new;
+	const char *last_slash;
+
+	last_slash = strrchr(progname, '/');
+	if (last_slash == NULL)
+		__progname = progname;
+	else
+		__progname = last_slash + 1;
 }

src/radixsort.c

@@ -0,0 +1,327 @@
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Peter McIlroy and by Dan Bernstein at New York University,
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)radixsort.c	8.2 (Berkeley) 4/28/95";
+#endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * Radixsort routines.
+ *
+ * Program r_sort_a() is unstable but uses O(logN) extra memory for a stack.
+ * Use radixsort(a, n, trace, endchar) for this case.
+ *
+ * For stable sorting (using N extra pointers) use sradixsort(), which calls
+ * r_sort_b().
+ *
+ * For a description of this code, see D. McIlroy, P. McIlroy, K. Bostic,
+ * "Engineering Radix Sort".
+ */
+
+#include <sys/types.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <errno.h>
+
+typedef struct {
+	const u_char **sa;
+	int sn, si;
+} stack;
+
+static inline void simplesort
+(const u_char **, int, int, const u_char *, u_int);
+static void r_sort_a(const u_char **, int, int, const u_char *, u_int);
+static void r_sort_b(const u_char **, const u_char **, int, int,
+    const u_char *, u_int);
+
+#define	THRESHOLD	20		/* Divert to simplesort(). */
+#define	SIZE		512		/* Default stack size. */
+
+#define SETUP {								\
+	if (tab == NULL) {						\
+		tr = tr0;						\
+		for (c = 0; c < endch; c++)				\
+			tr0[c] = c + 1;					\
+		tr0[c] = 0;						\
+		for (c++; c < 256; c++)					\
+			tr0[c] = c;					\
+		endch = 0;						\
+	} else {							\
+		endch = tab[endch];					\
+		tr = tab;						\
+		if (endch != 0 && endch != 255) {			\
+			errno = EINVAL;					\
+			return (-1);					\
+		}							\
+	}								\
+}
+
+int
+radixsort(a, n, tab, endch)
+	const u_char **a, *tab;
+	int n;
+	u_int endch;
+{
+	const u_char *tr;
+	int c;
+	u_char tr0[256];
+
+	SETUP;
+	r_sort_a(a, n, 0, tr, endch);
+	return (0);
+}
+
+int
+sradixsort(a, n, tab, endch)
+	const u_char **a, *tab;
+	int n;
+	u_int endch;
+{
+	const u_char *tr, **ta;
+	int c;
+	u_char tr0[256];
+
+	SETUP;
+	if (n < THRESHOLD)
+		simplesort(a, n, 0, tr, endch);
+	else {
+		if ((ta = malloc(n * sizeof(a))) == NULL)
+			return (-1);
+		r_sort_b(a, ta, n, 0, tr, endch);
+		free(ta);
+	}
+	return (0);
+}
+
+#define empty(s)	(s >= sp)
+#define pop(a, n, i)	a = (--sp)->sa, n = sp->sn, i = sp->si
+#define push(a, n, i)	sp->sa = a, sp->sn = n, (sp++)->si = i
+#define swap(a, b, t)	t = a, a = b, b = t
+
+/* Unstable, in-place sort. */
+static void
+r_sort_a(a, n, i, tr, endch)
+	const u_char **a;
+	int n, i;
+	const u_char *tr;
+	u_int endch;
+{
+	static int count[256], nc, bmin;
+	int c;
+	const u_char **ak, *r;
+	stack s[SIZE], *sp, *sp0, *sp1, temp;
+	int *cp, bigc;
+	const u_char **an, *t, **aj, **top[256];
+
+	/* Set up stack. */
+	sp = s;
+	push(a, n, i);
+	while (!empty(s)) {
+		pop(a, n, i);
+		if (n < THRESHOLD) {
+			simplesort(a, n, i, tr, endch);
+			continue;
+		}
+		an = a + n;
+
+		/* Make character histogram. */
+		if (nc == 0) {
+			bmin = 255;	/* First occupied bin, excluding eos. */
+			for (ak = a; ak < an;) {
+				c = tr[(*ak++)[i]];
+				if (++count[c] == 1 && c != endch) {
+					if (c < bmin)
+						bmin = c;
+					nc++;
+				}
+			}
+			if (sp + nc > s + SIZE) {	/* Get more stack. */
+				r_sort_a(a, n, i, tr, endch);
+				continue;
+			}
+		}
+
+		/*
+		 * Special case: if all strings have the same
+		 * character at position i, move on to the next
+		 * character.
+		 */
+		if (nc == 1 && count[bmin] == n) {
+			push(a, n, i+1);
+			nc = count[bmin] = 0;
+			continue;
+		}
+
+		/*
+		 * Set top[]; push incompletely sorted bins onto stack.
+		 * top[] = pointers to last out-of-place element in bins.
+		 * count[] = counts of elements in bins.
+		 * Before permuting: top[c-1] + count[c] = top[c];
+		 * during deal: top[c] counts down to top[c-1].
+		 */
+		sp0 = sp1 = sp;		/* Stack position of biggest bin. */
+		bigc = 2;		/* Size of biggest bin. */
+		if (endch == 0)		/* Special case: set top[eos]. */
+			top[0] = ak = a + count[0];
+		else {
+			ak = a;
+			top[255] = an;
+		}
+		for (cp = count + bmin; nc > 0; cp++) {
+			while (*cp == 0)	/* Find next non-empty pile. */
+				cp++;
+			if (*cp > 1) {
+				if (*cp > bigc) {
+					bigc = *cp;
+					sp1 = sp;
+				}
+				push(ak, *cp, i+1);
+			}
+			top[cp-count] = ak += *cp;
+			nc--;
+		}
+		swap(*sp0, *sp1, temp);	/* Play it safe -- biggest bin last. */
+
+		/*
+		 * Permute misplacements home.  Already home: everything
+		 * before aj, and in bin[c], items from top[c] on.
+		 * Inner loop:
+		 *	r = next element to put in place;
+		 *	ak = top[r[i]] = location to put the next element.
+		 *	aj = bottom of 1st disordered bin.
+		 * Outer loop:
+		 *	Once the 1st disordered bin is done, ie. aj >= ak,
+		 *	aj<-aj + count[c] connects the bins in a linked list;
+		 *	reset count[c].
+		 */
+		for (aj = a; aj < an;  *aj = r, aj += count[c], count[c] = 0)
+			for (r = *aj;  aj < (ak = --top[c = tr[r[i]]]);)
+				swap(*ak, r, t);
+	}
+}
+
+/* Stable sort, requiring additional memory. */
+static void
+r_sort_b(a, ta, n, i, tr, endch)
+	const u_char **a, **ta;
+	int n, i;
+	const u_char *tr;
+	u_int endch;
+{
+	static int count[256], nc, bmin;
+	int c;
+	const u_char **ak, **ai;
+	stack s[512], *sp, *sp0, *sp1, temp;
+	const u_char **top[256];
+	int *cp, bigc;
+
+	sp = s;
+	push(a, n, i);
+	while (!empty(s)) {
+		pop(a, n, i);
+		if (n < THRESHOLD) {
+			simplesort(a, n, i, tr, endch);
+			continue;
+		}
+
+		if (nc == 0) {
+			bmin = 255;
+			for (ak = a + n; --ak >= a;) {
+				c = tr[(*ak)[i]];
+				if (++count[c] == 1 && c != endch) {
+					if (c < bmin)
+						bmin = c;
+					nc++;
+				}
+			}
+			if (sp + nc > s + SIZE) {
+				r_sort_b(a, ta, n, i, tr, endch);
+				continue;
+			}
+		}
+
+		sp0 = sp1 = sp;
+		bigc = 2;
+		if (endch == 0) {
+			top[0] = ak = a + count[0];
+			count[0] = 0;
+		} else {
+			ak = a;
+			top[255] = a + n;
+			count[255] = 0;
+		}
+		for (cp = count + bmin; nc > 0; cp++) {
+			while (*cp == 0)
+				cp++;
+			if ((c = *cp) > 1) {
+				if (c > bigc) {
+					bigc = c;
+					sp1 = sp;
+				}
+				push(ak, c, i+1);
+			}
+			top[cp-count] = ak += c;
+			*cp = 0;			/* Reset count[]. */
+			nc--;
+		}
+		swap(*sp0, *sp1, temp);
+
+		for (ak = ta + n, ai = a+n; ak > ta;)	/* Copy to temp. */
+			*--ak = *--ai;
+		for (ak = ta+n; --ak >= ta;)		/* Deal to piles. */
+			*--top[tr[(*ak)[i]]] = *ak;
+	}
+}
+
+static inline void
+simplesort(a, n, b, tr, endch)	/* insertion sort */
+	const u_char **a;
+	int n, b;
+	const u_char *tr;
+	u_int endch;
+{
+	u_char ch;
+	const u_char  **ak, **ai, *s, *t;
+
+	for (ak = a+1; --n >= 1; ak++)
+		for (ai = ak; ai > a; ai--) {
+			for (s = ai[0] + b, t = ai[-1] + b;
+			    (ch = tr[*s]) != endch; s++, t++)
+				if (ch != tr[*t])
+					break;
+			if (ch >= tr[*t])
+				break;
+			swap(ai[0], ai[-1], s);
+		}
+}

src/readpassphrase.c

@@ -0,0 +1,187 @@
+/*	$OpenBSD: readpassphrase.c,v 1.20 2007/10/30 12:03:48 millert Exp $	*/
+
+/*
+ * Copyright (c) 2000-2002, 2007 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F39502-99-1-0512.
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <paths.h>
+#include <pwd.h>
+#include <signal.h>
+#include <string.h>
+#include <termios.h>
+#include <unistd.h>
+#include <readpassphrase.h>
+
+#ifndef TCSASOFT
+#define TCSASOFT 0
+#endif
+
+static volatile sig_atomic_t signo;
+
+static void handler(int);
+
+char *
+readpassphrase(const char *prompt, char *buf, size_t bufsiz, int flags)
+{
+	ssize_t nr;
+	int input, output, save_errno;
+	char ch, *p, *end;
+	struct termios term, oterm;
+	struct sigaction sa, savealrm, saveint, savehup, savequit, saveterm;
+	struct sigaction savetstp, savettin, savettou, savepipe;
+
+	/* I suppose we could alloc on demand in this case (XXX). */
+	if (bufsiz == 0) {
+		errno = EINVAL;
+		return(NULL);
+	}
+
+restart:
+	signo = 0;
+	nr = -1;
+	save_errno = 0;
+	/*
+	 * Read and write to /dev/tty if available.  If not, read from
+	 * stdin and write to stderr unless a tty is required.
+	 */
+	if ((flags & RPP_STDIN) ||
+	    (input = output = open(_PATH_TTY, O_RDWR)) == -1) {
+		if (flags & RPP_REQUIRE_TTY) {
+			errno = ENOTTY;
+			return(NULL);
+		}
+		input = STDIN_FILENO;
+		output = STDERR_FILENO;
+	}
+
+	/*
+	 * Catch signals that would otherwise cause the user to end
+	 * up with echo turned off in the shell.  Don't worry about
+	 * things like SIGXCPU and SIGVTALRM for now.
+	 */
+	sigemptyset(&sa.sa_mask);
+	sa.sa_flags = 0;		/* don't restart system calls */
+	sa.sa_handler = handler;
+	(void)sigaction(SIGALRM, &sa, &savealrm);
+	(void)sigaction(SIGHUP, &sa, &savehup);
+	(void)sigaction(SIGINT, &sa, &saveint);
+	(void)sigaction(SIGPIPE, &sa, &savepipe);
+	(void)sigaction(SIGQUIT, &sa, &savequit);
+	(void)sigaction(SIGTERM, &sa, &saveterm);
+	(void)sigaction(SIGTSTP, &sa, &savetstp);
+	(void)sigaction(SIGTTIN, &sa, &savettin);
+	(void)sigaction(SIGTTOU, &sa, &savettou);
+
+	/* Turn off echo if possible. */
+	if (input != STDIN_FILENO && tcgetattr(input, &oterm) == 0) {
+		memcpy(&term, &oterm, sizeof(term));
+		if (!(flags & RPP_ECHO_ON))
+			term.c_lflag &= ~(ECHO | ECHONL);
+#ifdef VSTATUS
+		if (term.c_cc[VSTATUS] != _POSIX_VDISABLE)
+			term.c_cc[VSTATUS] = _POSIX_VDISABLE;
+#endif
+		(void)tcsetattr(input, TCSAFLUSH|TCSASOFT, &term);
+	} else {
+		memset(&term, 0, sizeof(term));
+		term.c_lflag |= ECHO;
+		memset(&oterm, 0, sizeof(oterm));
+		oterm.c_lflag |= ECHO;
+	}
+
+	/* No I/O if we are already backgrounded. */
+	if (signo != SIGTTOU && signo != SIGTTIN) {
+		if (!(flags & RPP_STDIN))
+			(void)write(output, prompt, strlen(prompt));
+		end = buf + bufsiz - 1;
+		p = buf;
+		while ((nr = read(input, &ch, 1)) == 1 && ch != '\n' && ch != '\r') {
+			if (p < end) {
+				if ((flags & RPP_SEVENBIT))
+					ch &= 0x7f;
+				if (isalpha(ch)) {
+					if ((flags & RPP_FORCELOWER))
+						ch = (char)tolower(ch);
+					if ((flags & RPP_FORCEUPPER))
+						ch = (char)toupper(ch);
+				}
+				*p++ = ch;
+			}
+		}
+		*p = '\0';
+		save_errno = errno;
+		if (!(term.c_lflag & ECHO))
+			(void)write(output, "\n", 1);
+	}
+
+	/* Restore old terminal settings and signals. */
+	if (memcmp(&term, &oterm, sizeof(term)) != 0) {
+		while (tcsetattr(input, TCSAFLUSH|TCSASOFT, &oterm) == -1 &&
+		    errno == EINTR)
+			continue;
+	}
+	(void)sigaction(SIGALRM, &savealrm, NULL);
+	(void)sigaction(SIGHUP, &savehup, NULL);
+	(void)sigaction(SIGINT, &saveint, NULL);
+	(void)sigaction(SIGQUIT, &savequit, NULL);
+	(void)sigaction(SIGPIPE, &savepipe, NULL);
+	(void)sigaction(SIGTERM, &saveterm, NULL);
+	(void)sigaction(SIGTSTP, &savetstp, NULL);
+	(void)sigaction(SIGTTIN, &savettin, NULL);
+	(void)sigaction(SIGTTOU, &savettou, NULL);
+	if (input != STDIN_FILENO)
+		(void)close(input);
+
+	/*
+	 * If we were interrupted by a signal, resend it to ourselves
+	 * now that we have restored the signal handlers.
+	 */
+	if (signo) {
+		kill(getpid(), signo);
+		switch (signo) {
+		case SIGTSTP:
+		case SIGTTIN:
+		case SIGTTOU:
+			goto restart;
+		}
+	}
+
+	if (save_errno)
+		errno = save_errno;
+	return(nr == -1 ? NULL : buf);
+}
+
+#if 0
+char *
+getpass(const char *prompt)
+{
+	static char buf[_PASSWORD_LEN + 1];
+
+	return(readpassphrase(prompt, buf, sizeof(buf), RPP_ECHO_OFF));
+}
+#endif
+
+static void handler(int s)
+{
+
+	signo = s;
+}

src/reallocf.c

@@ -0,0 +1,48 @@
+/*-
+ * Copyright (c) 1998, M. Warner Losh <imp@freebsd.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <stdlib.h>
+
+void *
+reallocf(void *ptr, size_t size)
+{
+	void *nptr;
+
+	nptr = realloc(ptr, size);
+
+	/*
+	 * When the System V compatibility option (malloc "V" flag) is
+	 * in effect, realloc(ptr, 0) frees the memory and returns NULL.
+	 * So, to avoid double free, call free() only when size != 0.
+	 * realloc(ptr, 0) can't fail when ptr != NULL.
+	 */
+	if (!nptr && ptr && size != 0)
+		free(ptr);
+	return (nptr);
+}

src/setproctitle.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004, 2005 Guillem Jover
+ * Copyright © 2010 Guillem Jover <guillem@hadrons.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -24,14 +24,9 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef LIBBSD_RANDOM_H
+void
-#define LIBBSD_RANDOM_H
+setproctitle(const char *fmt, ...)
-
+{
-#include <sys/types.h>
+	/* Stub so that we can implement it later on and programs will
-
+	 * automatically benefit from it, w/o needing to recompile. */
-u_int32_t arc4random();
+}
-void arc4random_stir();
-void arc4random_addrandom(u_char *dat, int datlen);
-
-#endif
-

src/strlcat.c

@@ -1,37 +1,21 @@
-/*	$OpenBSD: strlcat.c,v 1.2 1999/06/17 16:28:58 millert Exp $	*/
+/*	$OpenBSD: strlcat.c,v 1.12 2005/03/30 20:13:52 otto Exp $	*/
 
 /*
  * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
- * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
+ * Permission to use, copy, modify, and distribute this software for any
- * modification, are permitted provided that the following conditions
+ * purpose with or without fee is hereby granted, provided that the above
- * are met:
+ * copyright notice and this permission notice appear in all copies.
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
  *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#if defined(LIBC_SCCS) && !defined(lint)
-static char *rcsid = "$OpenBSD: strlcat.c,v 1.2 1999/06/17 16:28:58 millert Exp $");
-#endif /* LIBC_SCCS and not lint */
-#include <sys/cdefs.h>
-
 #include <sys/types.h>
 #include <string.h>
 
@@ -43,10 +27,7 @@ static char *rcsid = "$OpenBSD: strlcat.c,v 1.2 1999/06/17 16:28:58 millert Exp
  * If retval >= siz, truncation occurred.
  */
 size_t
-strlcat(dst, src, siz)
+strlcat(char *dst, const char *src, size_t siz)
-	char *dst;
-	const char *src;
-	size_t siz;
 {
 	char *d = dst;
 	const char *s = src;

src/strlcpy.c

@@ -1,37 +1,21 @@
-/*	$OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp $	*/
+/*	$OpenBSD: strlcpy.c,v 1.10 2005/08/08 08:05:37 espie Exp $	*/
 
 /*
  * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
- * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
+ * Permission to use, copy, modify, and distribute this software for any
- * modification, are permitted provided that the following conditions
+ * purpose with or without fee is hereby granted, provided that the above
- * are met:
+ * copyright notice and this permission notice appear in all copies.
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
  *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#if defined(LIBC_SCCS) && !defined(lint)
-static char *rcsid = "$OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp $");
-#endif /* LIBC_SCCS and not lint */
-#include <sys/cdefs.h>
-
 #include <sys/types.h>
 #include <string.h>
 
@@ -40,21 +24,19 @@ static char *rcsid = "$OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp
  * will be copied.  Always NUL terminates (unless siz == 0).
  * Returns strlen(src); if retval >= siz, truncation occurred.
  */
-size_t strlcpy(dst, src, siz)
+size_t
-	char *dst;
+strlcpy(char *dst, const char *src, size_t siz)
-	const char *src;
-	size_t siz;
 {
 	char *d = dst;
 	const char *s = src;
 	size_t n = siz;
 
 	/* Copy as many bytes as will fit */
-	if (n != 0 && --n != 0) {
+	if (n != 0) {
-		do {
+		while (--n != 0) {
-			if ((*d++ = *s++) == 0)
+			if ((*d++ = *s++) == '\0')
 				break;
-		} while (--n != 0);
+		}
 	}
 
 	/* Not enough room in dst, add NUL and traverse rest of src */

src/strmode.c

@@ -0,0 +1,149 @@
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)strmode.c	8.3 (Berkeley) 8/15/94";
+#endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <string.h>
+
+void
+strmode(mode, p)
+	mode_t mode;
+	char *p;
+{
+	 /* print type */
+	switch (mode & S_IFMT) {
+	case S_IFDIR:			/* directory */
+		*p++ = 'd';
+		break;
+	case S_IFCHR:			/* character special */
+		*p++ = 'c';
+		break;
+	case S_IFBLK:			/* block special */
+		*p++ = 'b';
+		break;
+	case S_IFREG:			/* regular */
+		*p++ = '-';
+		break;
+	case S_IFLNK:			/* symbolic link */
+		*p++ = 'l';
+		break;
+	case S_IFSOCK:			/* socket */
+		*p++ = 's';
+		break;
+#ifdef S_IFIFO
+	case S_IFIFO:			/* fifo */
+		*p++ = 'p';
+		break;
+#endif
+#ifdef S_IFWHT
+	case S_IFWHT:			/* whiteout */
+		*p++ = 'w';
+		break;
+#endif
+	default:			/* unknown */
+		*p++ = '?';
+		break;
+	}
+	/* usr */
+	if (mode & S_IRUSR)
+		*p++ = 'r';
+	else
+		*p++ = '-';
+	if (mode & S_IWUSR)
+		*p++ = 'w';
+	else
+		*p++ = '-';
+	switch (mode & (S_IXUSR | S_ISUID)) {
+	case 0:
+		*p++ = '-';
+		break;
+	case S_IXUSR:
+		*p++ = 'x';
+		break;
+	case S_ISUID:
+		*p++ = 'S';
+		break;
+	case S_IXUSR | S_ISUID:
+		*p++ = 's';
+		break;
+	}
+	/* group */
+	if (mode & S_IRGRP)
+		*p++ = 'r';
+	else
+		*p++ = '-';
+	if (mode & S_IWGRP)
+		*p++ = 'w';
+	else
+		*p++ = '-';
+	switch (mode & (S_IXGRP | S_ISGID)) {
+	case 0:
+		*p++ = '-';
+		break;
+	case S_IXGRP:
+		*p++ = 'x';
+		break;
+	case S_ISGID:
+		*p++ = 'S';
+		break;
+	case S_IXGRP | S_ISGID:
+		*p++ = 's';
+		break;
+	}
+	/* other */
+	if (mode & S_IROTH)
+		*p++ = 'r';
+	else
+		*p++ = '-';
+	if (mode & S_IWOTH)
+		*p++ = 'w';
+	else
+		*p++ = '-';
+	switch (mode & (S_IXOTH | S_ISVTX)) {
+	case 0:
+		*p++ = '-';
+		break;
+	case S_IXOTH:
+		*p++ = 'x';
+		break;
+	case S_ISVTX:
+		*p++ = 'T';
+		break;
+	case S_IXOTH | S_ISVTX:
+		*p++ = 't';
+		break;
+	}
+	*p++ = ' ';		/* will be a '+' if ACL's implemented */
+	*p = '\0';
+}

src/strtonum.c

@@ -0,0 +1,68 @@
+/*-
+ * Copyright (c) 2004 Ted Unangst and Todd Miller
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ *	$OpenBSD: strtonum.c,v 1.6 2004/08/03 19:38:01 millert Exp $
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <errno.h>
+#include <limits.h>
+#include <stdlib.h>
+
+#define INVALID 	1
+#define TOOSMALL 	2
+#define TOOLARGE 	3
+
+long long
+strtonum(const char *numstr, long long minval, long long maxval,
+    const char **errstrp)
+{
+	long long ll = 0;
+	char *ep;
+	int error = 0;
+	struct errval {
+		const char *errstr;
+		int err;
+	} ev[4] = {
+		{ NULL,		0 },
+		{ "invalid",	EINVAL },
+		{ "too small",	ERANGE },
+		{ "too large",	ERANGE },
+	};
+
+	ev[0].err = errno;
+	errno = 0;
+	if (minval > maxval)
+		error = INVALID;
+	else {
+		ll = strtoll(numstr, &ep, 10);
+		if (errno == EINVAL || numstr == ep || *ep != '\0')
+			error = INVALID;
+		else if ((ll == LLONG_MIN && errno == ERANGE) || ll < minval)
+			error = TOOSMALL;
+		else if ((ll == LLONG_MAX && errno == ERANGE) || ll > maxval)
+			error = TOOLARGE;
+	}
+	if (errstrp != NULL)
+		*errstrp = ev[error].errstr;
+	errno = ev[error].err;
+	if (error)
+		ll = 0;
+
+	return (ll);
+}

src/unvis.c

@@ -235,7 +235,7 @@ strunvis(char *dst, const char *src)
 	char *start = dst;
 	int state = 0;
 
-	while ( (c = *src++) ) {
+	while ((c = *src++)) {
 	again:
 		switch (unvis(dst, c, &state, 0)) {
 		case UNVIS_VALID:
@@ -248,6 +248,7 @@ strunvis(char *dst, const char *src)
 		case UNVIS_NOCHAR:
 			break;
 		default:
+			*dst = '\0';
 			return (-1);
 		}
 	}
@@ -257,14 +258,55 @@ strunvis(char *dst, const char *src)
 	return (dst - start);
 }
 
+ssize_t
+strnunvis(char *dst, const char *src, size_t sz)
+{
+	char c, p;
+	char *start = dst, *end = dst + sz - 1;
+	int state = 0;
+
+	if (sz > 0)
+		*end = '\0';
+	while ((c = *src++)) {
+	again:
+		switch (unvis(&p, c, &state, 0)) {
+		case UNVIS_VALID:
+			if (dst < end)
+				*dst = p;
+			dst++;
+			break;
+		case UNVIS_VALIDPUSH:
+			if (dst < end)
+				*dst = p;
+			dst++;
+			goto again;
+		case 0:
+		case UNVIS_NOCHAR:
+			break;
+		default:
+			if (dst <= end)
+				*dst = '\0';
+			return (-1);
+		}
+	}
+	if (unvis(&p, c, &state, UNVIS_END) == UNVIS_VALID) {
+		if (dst < end)
+			*dst = p;
+		dst++;
+	}
+	if (dst <= end)
+		*dst = '\0';
+	return (dst - start);
+}
+
 int
 strunvisx(char *dst, const char *src, int flag)
 {
 	char c;
 	char *start = dst;
 	int state = 0;
-    
+
-	while ( (c = *src++) ) {
+	while ((c = *src++)) {
 	again:
 		switch (unvis(dst, c, &state, flag)) {
 		case UNVIS_VALID:

src/vis.c

@@ -1,3 +1,4 @@
+/*	$OpenBSD: vis.c,v 1.18 2005/08/29 18:38:41 otto Exp $ */
 /*-
  * Copyright (c) 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -30,19 +31,27 @@
 #include <sys/types.h>
 #include <limits.h>
 #include <ctype.h>
+#include <string.h>
 #include <stdio.h>
 #include <vis.h>
 
 #define	isoctal(c)	(((u_char)(c)) >= '0' && ((u_char)(c)) <= '7')
+#define	isvisible(c)							\
+	(((u_int)(c) <= UCHAR_MAX && isascii((u_char)(c)) &&		\
+	(((c) != '*' && (c) != '?' && (c) != '[' && (c) != '#') ||	\
+		(flag & VIS_GLOB) == 0) && isgraph((u_char)(c))) ||	\
+	((flag & VIS_SP) == 0 && (c) == ' ') ||				\
+	((flag & VIS_TAB) == 0 && (c) == '\t') ||			\
+	((flag & VIS_NL) == 0 && (c) == '\n') ||			\
+	((flag & VIS_SAFE) && ((c) == '\b' ||				\
+		(c) == '\007' || (c) == '\r' ||				\
+		isgraph((u_char)(c)))))
 
 /*
  * vis - visually encode characters
  */
 char *
-vis(dst, c, flag, nextc)
+vis(char *dst, int c, int flag, int nextc)
-	char *dst;
-	int c, nextc;
-	int flag;
 {
 	c = (unsigned char)c;
 
@@ -149,20 +158,20 @@ done:
 }
 
 /*
- * strvis, strvisx - visually encode characters from src into dst
+ * strvis, strnvis, strvisx - visually encode characters from src into dst
  *
  *	Dst must be 4 times the size of src to account for possible
  *	expansion.  The length of dst, not including the trailing NUL,
  *	is returned.
  *
+ *	Strnvis will write no more than siz-1 bytes (and will NULL terminate).
+ *	The number of bytes needed to fully encode the string is returned.
+ *
  *	Strvisx encodes exactly len bytes from src into dst.
  *	This is useful for encoding a block of data.
  */
 int
-strvis(dst, src, flag)
+strvis(char *dst, const char *src, int flag)
-	char *dst;
-	const char *src;
-	int flag;
 {
 	char c;
 	char *start;
@@ -174,11 +183,51 @@ strvis(dst, src, flag)
 }
 
 int
-strvisx(dst, src, len, flag)
+strnvis(char *dst, const char *src, size_t siz, int flag)
-	char *dst;
+{
-	const char *src;
+	char *start, *end;
-	size_t len;
+	char tbuf[5];
-	int flag;
+	int c, i;
+
+	i = 0;
+	for (start = dst, end = start + siz - 1; (c = *src) && dst < end; ) {
+		if (isvisible(c)) {
+			i = 1;
+			*dst++ = c;
+			if (c == '\\' && (flag & VIS_NOSLASH) == 0) {
+				/* need space for the extra '\\' */
+				if (dst < end)
+					*dst++ = '\\';
+				else {
+					dst--;
+					i = 2;
+					break;
+				}
+			}
+			src++;
+		} else {
+			i = vis(tbuf, c, flag, *++src) - tbuf;
+			if (dst + i <= end) {
+				memcpy(dst, tbuf, i);
+				dst += i;
+			} else {
+				src--;
+				break;
+			}
+		}
+	}
+	if (siz > 0)
+		*dst = '\0';
+	if (dst + i > end) {
+		/* adjust return value for truncation */
+		while ((c = *src))
+			dst += vis(tbuf, c, flag, *++src) - tbuf;
+	}
+	return (dst - start);
+}
+
+int
+strvisx(char *dst, const char *src, size_t len, int flag)
 {
 	int c;
 	char *start;

test/.gitignore

@@ -0,0 +1,3 @@
+endian
+headers
+overlay