Release libbsd 0.12.2

With linker sections GC enabled, we get a test failure in `nlist.c`:
```
nlist: nlist.c:72: main: Assertion `rc == 0' failed.
```

This turns out to be because several sections used by the test can be discarded:
```
ld: removing unused section '.text.func_pub' in file 'nlist.o'
ld: removing unused section '.bss.data_pub_uninit' in file 'nlist.o'
ld: removing unused section '.data.data_pub_init' in file 'nlist.o'
```

Reproduced with `CFLAGS="-Og -fdata-sections -ffunction-sections"` and
`LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--gc-sections -Wl,-z,start-stop-gc"`.

Additionally, `LDFLAGS="... -Wl,--print-gc-sections"` can help with diagnosing
which sections get removed.

We already mark these symbols as `used`, but we need `retain` [0] for them
to survive linker GC too.

[0] https://releases.llvm.org/18.1.0/tools/lld/docs/ELF/start-stop-gc.html#annotate-c-identifier-name-sections

Closes: !29
Signed-off-by: Sam James <sam@gentoo.org>
Signed-off-by: Guillem Jover <guillem@hadrons.org>

.gitignore

@@ -11,6 +11,7 @@ ChangeLog
 *.gcda
 *.gcno
 *.sym
+*.map
 .dirstamp
 .deps/
 .libs/

COPYING

@@ -3,7 +3,7 @@ Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
 Files:
  *
 Copyright:
- Copyright © 2004-2006, 2008-2022 Guillem Jover <guillem@hadrons.org>
+ Copyright © 2004-2024 Guillem Jover <guillem@hadrons.org>
 License: BSD-3-clause
 
 Files:

configure.ac

@@ -16,12 +16,12 @@ AM_INIT_AUTOMAKE(
 )
 AM_SILENT_RULES([yes])
 
-LIBBSD_ABI_MAJOR=0
-LIBBSD_ABI_MINOR=11
-LIBBSD_ABI_PATCH=8
+SOVERSION_MAJOR=0
+SOVERSION_MINOR=12
+SOVERSION_PATCH=2
 
-LIBBSD_ABI="$LIBBSD_ABI_MAJOR:$LIBBSD_ABI_MINOR:$LIBBSD_ABI_PATCH"
-AC_SUBST([LIBBSD_ABI])
+SOVERSION="$SOVERSION_MAJOR:$SOVERSION_MINOR:$SOVERSION_PATCH"
+AC_SUBST([SOVERSION])
 
 # Check and store if we got user supplied variables
 user_CFLAGS=${CFLAGS-unset}
@@ -29,17 +29,352 @@ user_CFLAGS=${CFLAGS-unset}
 # Checks for operating system services and capabilities.
 AC_USE_SYSTEM_EXTENSIONS
 AC_SYS_LARGEFILE
+LIBBSD_SYS_TIME64
 
 AM_PROG_AR
 LT_INIT
 LIBBSD_LINKER_VERSION_SCRIPT
 
+## Select library ABI to expose.
+#
+# The systems have DROP comments for interfaces that could be dropped on
+# the next SOVERSION bump.
+
 is_windows=no
+
+api_time_macros=unknown
+
+abi_accmode=unknown
+abi_arc4random=unknown
+abi_arc4random_stir=unknown
+abi_asprintf=unknown
+abi_bsd_getopt=unknown
+abi_closefrom=unknown
+abi_err=unknown
+abi_errc=unknown
+abi_expand_number=unknown
+abi_explicit_bzero=unknown
+abi_fgetln=unknown
+abi_flopen=unknown
+abi_fmtcheck=unknown
+abi_fpurge=unknown
+abi_freezero=unknown
+abi_funopen=unknown
+abi_getbsize=unknown
+abi_getpeereid=unknown
+abi_humanize_number=unknown
+abi_id_from_name=unknown
+abi_inet_net_pton=unknown
+abi_md5=unknown
+abi_name_from_id=unknown
+abi_nlist=unknown
+abi_pidfile=unknown
+abi_proctitle=unknown
+abi_progname=unknown
+abi_readpassphrase=unknown
+abi_reallocarray=unknown
+abi_reallocf=unknown
+abi_recallocarray=unknown
+abi_stringlist=unknown
+abi_sort=unknown
+abi_strl=unknown
+abi_strmode=unknown
+abi_strnstr=unknown
+abi_strtonum=unknown
+abi_strtox=unknown
+abi_timeconv=unknown
+abi_vis=unknown
+abi_wcsl=unknown
+
 AS_CASE([$host_os],
+  [*-gnu* | gnu*], [
+    api_time_macros=no
+
+    abi_accmode=yes
+    # DROP: On glibc >= 2.36.
+    #abi_arc4random=no
+    abi_arc4random=yes
+    abi_arc4random_stir=yes
+    abi_asprintf=no
+    abi_bsd_getopt=yes
+    # DROP: On glibc >= 2.34.
+    #abi_closefrom=no
+    abi_closefrom=yes
+    abi_err=no
+    abi_errc=yes
+    abi_expand_number=yes
+    # DROP: On glibc >= 2.25.
+    #abi_explicit_bzero=no
+    abi_explicit_bzero=yes
+    abi_fgetln=yes
+    abi_flopen=yes
+    abi_fmtcheck=yes
+    abi_fpurge=yes
+    abi_freezero=yes
+    abi_funopen=yes
+    abi_getbsize=yes
+    abi_getpeereid=yes
+    abi_humanize_number=yes
+    abi_id_from_name=yes
+    # DROP: On glibc.
+    #abi_inet_net_pton=no
+    abi_inet_net_pton=yes
+    # DROP: On libmd.
+    #abi_md5=no
+    abi_md5=yes
+    abi_name_from_id=yes
+    abi_nlist=yes
+    abi_pidfile=yes
+    abi_proctitle=yes
+    abi_progname=yes
+    abi_readpassphrase=yes
+    # DROP: On glibc >= 2.26.
+    #abi_reallocarray=no
+    abi_reallocarray=yes
+    abi_reallocf=yes
+    abi_recallocarray=yes
+    abi_stringlist=yes
+    abi_sort=yes
+    # DROP: On glibc >= 2.38.
+    #abi_strl=no
+    abi_strl=yes
+    abi_strmode=yes
+    abi_strnstr=yes
+    abi_strtonum=yes
+    abi_strtox=yes
+    abi_timeconv=yes
+    # DROP: On libmd.
+    abi_transparent_libmd=yes
+    abi_vis=yes
+    abi_wcsl=yes
+  ],
+  [*-musl*], [
+    api_time_macros=no
+
+    abi_accmode=yes
+    abi_arc4random=yes
+    abi_arc4random_stir=yes
+    abi_asprintf=no
+    # DROP: On musl >= 0.9.7, optreset got implemented.
+    #abi_bsd_getopt=no
+    abi_bsd_getopt=yes
+    abi_closefrom=yes
+    abi_err=no
+    abi_errc=yes
+    abi_expand_number=yes
+    # DROP: On musl >= 1.1.20.
+    #abi_explicit_bzero=no
+    abi_explicit_bzero=yes
+    # DROP: On musl >= 0.9.4.
+    #abi_fgetln=no
+    abi_fgetln=yes
+    abi_flopen=yes
+    abi_fmtcheck=yes
+    abi_fpurge=yes
+    abi_freezero=yes
+    # On musl >= 1.1.19, fopencookie() got implemented, and because we were
+    # checking for its presence to decide whether to build funopen(), it got
+    # included in builds even when previously it had not been included, which
+    # is partially an ABI issue, but given that disabling it now would be
+    # worse, we'll ignore this as this is only a problem with downgrades. And
+    # enable it explicitly
+    #abi_funopen=no
+    abi_funopen=yes
+    abi_getbsize=yes
+    abi_getpeereid=yes
+    abi_humanize_number=yes
+    abi_id_from_name=yes
+    abi_inet_net_pton=yes
+    # DROP: On libmd.
+    #abi_md5=no
+    abi_md5=yes
+    abi_name_from_id=yes
+    abi_nlist=yes
+    abi_pidfile=yes
+    abi_proctitle=yes
+    abi_progname=yes
+    abi_readpassphrase=yes
+    # DROP: On musl >= 1.2.2.
+    #abi_reallocarray=no
+    abi_reallocarray=yes
+    abi_reallocf=ues
+    abi_recallocarray=yes
+    abi_stringlist=yes
+    abi_sort=yes
+    # DROP: On musl >= 0.5.0, strlcpy() and strlcat() were already implemented.
+    #abi_strl=no
+    abi_strl=yes
+    abi_strmode=yes
+    abi_strnstr=yes
+    abi_strtonum=yes
+    abi_strtox=yes
+    abi_timeconv=yes
+    # DROP: On libmd.
+    abi_transparent_libmd=yes
+    abi_vis=yes
+    abi_wcsl=yes
+  ],
+  [darwin*], [
+    api_time_macros=no
+
+    abi_accmode=no
+    abi_arc4random=no
+    abi_arc4random_stir=no
+    abi_asprintf=no
+    abi_bsd_getopt=no
+    abi_closefrom=yes
+    abi_err=no
+    abi_errc=no
+    abi_expand_number=yes
+    abi_explicit_bzero=yes
+    abi_fgetln=no
+    abi_flopen=yes
+    abi_fmtcheck=no
+    abi_fpurge=no
+    abi_freezero=yes
+    abi_funopen=no
+    abi_getbsize=yes
+    abi_getpeereid=no
+    abi_humanize_number=yes
+    abi_id_from_name=yes
+    abi_inet_net_pton=no
+    # On libmd.
+    abi_md5=no
+    abi_name_from_id=no
+    abi_nlist=no
+    abi_pidfile=yes
+    abi_proctitle=yes
+    abi_progname=no
+    abi_readpassphrase=no
+    abi_reallocarray=yes
+    abi_reallocf=no
+    abi_recallocarray=yes
+    abi_stringlist=no
+    abi_sort=no
+    abi_strl=no
+    abi_strmode=no
+    abi_strnstr=no
+    abi_strtonum=no
+    abi_strtox=yes
+    abi_timeconv=no
+    # On libmd.
+    abi_transparent_libmd=no
+    abi_vis=no
+    abi_wcsl=no
+  ],
+  [solaris2*], [
+    api_time_macros=yes
+
+    abi_accmode=yes
+    abi_arc4random=no
+    abi_arc4random_stir=no
+    abi_asprintf=no
+    abi_bsd_getopt=yes
+    abi_closefrom=no
+    abi_err=no
+    abi_errc=yes
+    abi_expand_number=yes
+    abi_explicit_bzero=yes
+    abi_fgetln=yes
+    abi_flopen=yes
+    abi_fmtcheck=no
+    abi_fpurge=yes
+    abi_freezero=yes
+    abi_funopen=no
+    abi_getbsize=yes
+    abi_getpeereid=yes
+    abi_humanize_number=yes
+    abi_id_from_name=yes
+    abi_inet_net_pton=yes
+    # On libmd.
+    abi_md5=no
+    abi_name_from_id=yes
+    abi_nlist=no
+    abi_pidfile=yes
+    abi_proctitle=yes
+    abi_progname=no
+    abi_readpassphrase=yes
+    abi_reallocarray=yes
+    abi_reallocf=no
+    abi_recallocarray=yes
+    abi_stringlist=yes
+    abi_sort=yes
+    abi_strl=no
+    abi_strmode=yes
+    abi_strnstr=no
+    abi_strtonum=no
+    abi_strtox=yes
+    abi_timeconv=yes
+    # On libmd.
+    abi_transparent_libmd=no
+    abi_vis=yes
+    abi_wcsl=yes
+  ],
+  [aix*], [
+    api_time_macros=yes
+
+    abi_accmode=yes
+    abi_arc4random=yes
+    abi_arc4random_stir=yes
+    abi_asprintf=yes
+    abi_bsd_getopt=yes
+    abi_closefrom=yes
+    abi_err=yes
+    abi_errc=yes
+    abi_expand_number=yes
+    abi_explicit_bzero=yes
+    abi_fgetln=yes
+    abi_flopen=yes
+    abi_fmtcheck=yes
+    abi_fpurge=no
+    abi_freezero=yes
+    abi_funopen=no
+    abi_getbsize=yes
+    abi_getpeereid=yes
+    abi_humanize_number=yes
+    abi_id_from_name=yes
+    abi_inet_net_pton=no
+    # On libmd.
+    abi_md5=no
+    abi_name_from_id=yes
+    abi_nlist=no
+    abi_pidfile=yes
+    abi_proctitle=yes
+    abi_progname=yes
+    abi_readpassphrase=yes
+    abi_reallocarray=yes
+    abi_reallocf=yes
+    abi_recallocarray=yes
+    abi_stringlist=yes
+    abi_sort=yes
+    abi_strl=yes
+    abi_strmode=yes
+    abi_strnstr=yes
+    abi_strtonum=yes
+    abi_strtox=yes
+    abi_timeconv=yes
+    # On libmd.
+    abi_transparent_libmd=no
+    abi_vis=yes
+    abi_wcsl=yes
+  ],
   [mingw*], [
     is_windows=yes
   ],
 )
+
+# Handle artificial ABI selections that are combinations of others.
+AS_IF([test "$abi_name_from_id" = "yes" || test "$abi_id_from_name" = "yes"], [
+  abi_pwcache=yes
+], [
+  abi_pwcache=no
+])
+AS_IF([test "$abi_err" = "yes" || test "$abi_errc" = "yes"], [
+  abi_err_h=yes
+], [
+  abi_err_h=no
+])
+
 AM_CONDITIONAL([OS_WINDOWS], [test "x$is_windows" = "xyes"])
 
 # Checks for programs.
@@ -110,20 +445,28 @@ AM_CONDITIONAL([HAVE_LIBTESTU01],
   [test "x$ac_cv_lib_testu01_unif01_CreateExternGenBits" = "xyes"])
 
 saved_LIBS="$LIBS"
-AC_SEARCH_LIBS([MD5Update], [md], [
-  AS_IF([test "x$ac_cv_search_MD5Update" != "xnone required"], [
-    MD5_LIBS="$MD5_LIBS $ac_cv_search_MD5Update"
-    need_transparent_libmd=yes
+AS_IF([test "$abi_md5" = "yes"], [
+  AC_SEARCH_LIBS([MD5Update], [md], [
+    AS_IF([test "x$ac_cv_search_MD5Update" != "xnone required"], [
+      MD5_LIBS="$MD5_LIBS $ac_cv_search_MD5Update"
+      abi_transparent_libmd=yes
+    ])
+  ], [
+    AC_MSG_ERROR([cannot find required MD5 functions in libc or libmd])
   ])
-], [
-  AC_MSG_ERROR([cannot find required MD5 functions in libc or libmd])
 ])
-AC_SEARCH_LIBS([SHA512Update], [md], [
-  AS_IF([test "x$ac_cv_search_SHA512Update" != "xnone required"], [
-    LIBBSD_LIBS="$LIBBSD_LIBS $ac_cv_search_SHA512Update"
+AS_IF([test "$abi_arc4random" = "yes"], [
+  AC_CHECK_FUNCS([getentropy])
+
+  AS_IF([test "$ac_cv_func_getentropy" != "yes"], [
+    AC_SEARCH_LIBS([SHA512Update], [md], [
+      AS_IF([test "x$ac_cv_search_SHA512Update" != "xnone required"], [
+        LIBBSD_LIBS="$SHA512_LIBS $ac_cv_search_SHA512Update"
+      ])
+    ], [
+      AC_MSG_ERROR([cannot find required SHA-2 functions in libc or libmd])
+    ])
   ])
-], [
-  AC_MSG_ERROR([cannot find required SHA-2 functions in libc or libmd])
 ])
 LIBS="$saved_LIBS"
 
@@ -187,55 +530,12 @@ AC_CHECK_DECLS([environ], [], [], [[
 LIBBSD_HAS_GNU_INIT_ARRAY
 
 # 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([[
-#include <stdio.h>
-extern char *__progname;
-  ]], [[
-printf("%s", __progname);
-  ]])
-], [
-  AC_DEFINE([HAVE___PROGNAME], [1], [Define to 1 if you have __progname])
-  AC_MSG_RESULT([yes])
-], [
-  AC_MSG_RESULT([no])
-])
-
-AC_MSG_CHECKING([for __register_atfork])
-AC_LINK_IFELSE([
-  AC_LANG_PROGRAM([[
-#include <stddef.h>
-extern void *__dso_handle;
-extern int __register_atfork(void (*)(void), void(*)(void), void (*)(void), void *);
-  ]], [[
-__register_atfork(NULL, NULL, NULL, __dso_handle);
-  ]])
-], [
-  AC_DEFINE([HAVE___REGISTER_ATFORK], [1],
-    [Define to 1 if you have __register_atfork])
-  AC_MSG_RESULT([yes])
-], [
-  LIBBSD_LIBS="$LIBBSD_LIBS -pthread"
-  AC_MSG_RESULT([no])
-])
+LIBBSD_CHECK_PROGNAME
+LIBBSD_CHECK_REGISTER_ATFORK
 
 AC_CHECK_FUNCS([\
+  vasprintf \
+  asprintf \
   clearenv \
   dirfd \
   flock \
@@ -255,72 +555,58 @@ AC_CHECK_FUNCS([\
   group_from_gid \
 ])
 
-need_arc4random=yes
-need_bsd_getopt=yes
-need_progname=yes
-need_md5=yes
-need_nlist=yes
-need_strl=yes
-need_wcsl=yes
-need_strmode=yes
-need_id_from_name=yes
-need_fpurge=yes
-need_funopen=yes
-AS_CASE([$host_os],
-  [*-gnu*], [
-    # On glibc >= 2.38, strlcpy() and strlcat() got added,
-    # so these could then be dropped on the next SOVERSION bump.
-    #need_strl=no
-  ],
-  [*-musl*], [
-    # On musl >= 0.5.0, strlcpy() and strlcat() were already implemented,
-    # so these can then be dropped on the next SOVERSION bump.
-    #need_strl=no
-    # On musl >= 0.9.7, optreset got implemented, so bsd_getopt() can then
-    # be dropped on the next SOVERSION bump.
-    #need_bsd_getopt=no
-    # On musl >= 1.1.19, fopencookie() got implemented, and because we were
-    # checking for its presence to decide whether to build funopen(), it got
-    # included in builds even when previously it had not been included, which
-    # is partially an ABI issue, but given that disabling it now would be
-    # worse, we'll ignore this as this is only a problem with downgrades. And
-    # enable it explicitly
-    need_funopen=yes
-  ],
-  [darwin*], [
-    # On macOS these are provided by the system, and libbsd has never built
-    # there, so we can avoid providing these with no ABI breakage.
-    need_arc4random=no
-    need_bsd_getopt=no
-    need_progname=no
-    need_transparent_libmd=no
-    need_md5=no
-    need_nlist=no
-    need_strl=no
-    need_wcsl=no
-    need_strmode=no
-    need_id_from_name=no
-    need_fpurge=no
-    # On macOS we do not have fopencookie(), and cannot implement it.
-    need_funopen=no
-  ],
-)
-
 AM_CONDITIONAL([HAVE_GETENTROPY], [test "x$ac_cv_func_getentropy" = "xyes"])
 
-AM_CONDITIONAL([NEED_ARC4RANDOM], [test "x$need_arc4random" = "xyes"])
-AM_CONDITIONAL([NEED_BSD_GETOPT], [test "x$need_bsd_getopt" = "xyes"])
-AM_CONDITIONAL([NEED_PROGNAME], [test "x$need_progname" = "xyes"])
-AM_CONDITIONAL([NEED_TRANSPARENT_LIBMD], [test "x$need_transparent_libmd" = "xyes"])
-AM_CONDITIONAL([NEED_MD5], [test "x$need_md5" = "xyes"])
-AM_CONDITIONAL([NEED_NLIST], [test "x$need_nlist" = "xyes"])
-AM_CONDITIONAL([NEED_STRL], [test "x$need_strl" = "xyes"])
-AM_CONDITIONAL([NEED_WCSL], [test "x$need_wcsl" = "xyes"])
-AM_CONDITIONAL([NEED_STRMODE], [test "x$need_strmode" = "xyes"])
-AM_CONDITIONAL([NEED_ID_FROM_NAME], [test "x$need_id_from_name" = "xyes"])
-AM_CONDITIONAL([NEED_FPURGE], [test "x$need_fpurge" = "xyes"])
-AM_CONDITIONAL([NEED_FUNOPEN], [test "x$need_funopen" = "xyes"])
-AS_IF([test "x$need_funopen" = "xno" && \
+# API selection
+LIBBSD_SELECT_API([time_macros], [time struct conversion macros])
+
+# ABI selection
+LIBBSD_SELECT_ABI([accmode], [setmode()/getmode()])
+LIBBSD_SELECT_ABI([arc4random], [arc4random() API])
+LIBBSD_SELECT_ABI([arc4random_stir], [arc4random_stir()/arc4random_addrandom()])
+LIBBSD_SELECT_ABI([asprintf], [vasprintf()/asprintf()])
+LIBBSD_SELECT_ABI([bsd_getopt], [BSD getopt()])
+LIBBSD_SELECT_ABI([closefrom], [closefrom()])
+LIBBSD_SELECT_ABI([err_h], [err.h header])
+LIBBSD_SELECT_ABI([err], [err API])
+LIBBSD_SELECT_ABI([errc], [errc API])
+LIBBSD_SELECT_ABI([expand_number], [expand_number()])
+LIBBSD_SELECT_ABI([explicit_bzero], [explicit_bzero()])
+LIBBSD_SELECT_ABI([fgetln], [fgetln/fgetwln()])
+LIBBSD_SELECT_ABI([flopen], [flopen()/flopenat()])
+LIBBSD_SELECT_ABI([fmtcheck], [fmtcheck()])
+LIBBSD_SELECT_ABI([fpurge], [fpurge()])
+LIBBSD_SELECT_ABI([freezero], [freezero()])
+LIBBSD_SELECT_ABI([funopen], [funopen()])
+LIBBSD_SELECT_ABI([getbsize], [getbsize()])
+LIBBSD_SELECT_ABI([getpeereid], [getpeereid()])
+LIBBSD_SELECT_ABI([humanize_number], [humanize_number()/dehumanize_number()])
+LIBBSD_SELECT_ABI([id_from_name], [uid_from_user()/gid_from_user()])
+LIBBSD_SELECT_ABI([inet_net_pton], [inet_net_pton()])
+LIBBSD_SELECT_ABI([md5], [MD5 digest functions])
+LIBBSD_SELECT_ABI([name_from_id], [user_from_uid()/group_from_gid()])
+LIBBSD_SELECT_ABI([nlist], [nlist()])
+LIBBSD_SELECT_ABI([pidfile], [pidfile API])
+LIBBSD_SELECT_ABI([proctitle], [setproctitle() API])
+LIBBSD_SELECT_ABI([progname], [setprogname()/getprogname()])
+LIBBSD_SELECT_ABI([pwcache], [password cache API])
+LIBBSD_SELECT_ABI([readpassphrase], [readpassphrase()])
+LIBBSD_SELECT_ABI([reallocarray], [reallocarray()])
+LIBBSD_SELECT_ABI([reallocf], [reallocf()])
+LIBBSD_SELECT_ABI([recallocarray], [recallocarray()])
+LIBBSD_SELECT_ABI([stringlist], [stringlist sl_*() API])
+LIBBSD_SELECT_ABI([sort], [BSD sort functions])
+LIBBSD_SELECT_ABI([strl], [strlcpy()/strlcat()])
+LIBBSD_SELECT_ABI([strmode], [strmode()])
+LIBBSD_SELECT_ABI([strnstr], [strnstr()])
+LIBBSD_SELECT_ABI([strtonum], [strtonum()])
+LIBBSD_SELECT_ABI([strtox], [strtoi()/strtou()])
+LIBBSD_SELECT_ABI([timeconv], [timeconv.h API])
+LIBBSD_SELECT_ABI([transparent_libmd], [transparent libmd support])
+LIBBSD_SELECT_ABI([vis], [vis API])
+LIBBSD_SELECT_ABI([wcsl], [wcslcpy()/wcslcat()])
+
+AS_IF([test "x$abi_funopen" = "xno" && \
        test "x$ac_cv_func_funopen" != "xyes" && \
        test "x$ac_cv_func_fopencookie" = "xyes"], [
   AC_MSG_WARN([[can implement funopen() now based on newly added fopencooke(), report upstream]])

include/Makefile.am

@@ -12,31 +12,77 @@ nobase_include_HEADERS = \
 	bsd/netinet/ip_icmp.h \
 	bsd/bitstring.h \
 	bsd/bsd.h \
-	bsd/err.h \
-	bsd/getopt.h \
-	bsd/grp.h \
 	bsd/inttypes.h \
 	bsd/libutil.h \
-	bsd/pwd.h \
-	bsd/readpassphrase.h \
 	bsd/stdio.h \
 	bsd/stdlib.h \
 	bsd/string.h \
-	bsd/stringlist.h \
-	bsd/timeconv.h \
 	bsd/unistd.h \
-	bsd/vis.h \
 	bsd/wchar.h \
 	# EOL
 
-if NEED_MD5
+if ABI_ERR_H
+nobase_include_HEADERS += \
+	bsd/err.h \
+	# EOL
+endif
+
+if ABI_BSD_GETOPT
+nobase_include_HEADERS += \
+	bsd/getopt.h \
+	# EOL
+endif
+
+if ABI_MD5
 nobase_include_HEADERS += \
 	bsd/md5.h \
 	# EOL
 endif
 
-if NEED_NLIST
+if ABI_NLIST
 nobase_include_HEADERS += \
 	bsd/nlist.h \
 	# EOL
 endif
+
+if ABI_READPASSPHRASE
+nobase_include_HEADERS += \
+	bsd/readpassphrase.h \
+	# EOL
+endif
+
+if ABI_PWCACHE
+nobase_include_HEADERS += \
+	bsd/grp.h \
+	bsd/pwd.h \
+	# EOL
+endif
+
+if ABI_STRINGLIST
+nobase_include_HEADERS += \
+	bsd/stringlist.h \
+	# EOL
+endif
+
+if ABI_TIMECONV
+nobase_include_HEADERS += \
+	bsd/timeconv.h \
+	# EOL
+endif
+
+if ABI_VIS
+nobase_include_HEADERS += \
+	bsd/vis.h \
+	# EOL
+endif
+
+do_header_subst = $(AM_V_GEN) $(SED) \
+	-e 's:^//\(.define LIBBSD_SYS_TIME_BITS\).*:\1 $(LIBBSD_SYS_TIME_BITS):' \
+	-e 's:^//\(.define LIBBSD_SYS_HAS_TIME64\).*:\1 $(LIBBSD_SYS_HAS_TIME64):' \
+	# EOL
+
+install-data-hook:
+	$(do_header_subst) <$(DESTDIR)$(includedir)/bsd/sys/cdefs.h \
+	                   >$(DESTDIR)$(includedir)/bsd/sys/cdefs.h.new
+	mv  $(DESTDIR)$(includedir)/bsd/sys/cdefs.h.new \
+	    $(DESTDIR)$(includedir)/bsd/sys/cdefs.h

include/bsd/md5.h

@@ -24,8 +24,10 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifndef _AIX
 #ifdef LIBBSD_OVERLAY
 #include_next <md5.h>
 #else
 #include <md5.h>
 #endif
+#endif

include/bsd/stdio.h

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2004-2005, 2009, 2011-2013 Guillem Jover <guillem@hadrons.org>
+ * Copyright © 2004-2024 Guillem Jover <guillem@hadrons.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -44,8 +44,18 @@
 #include <bsd/sys/cdefs.h>
 #endif
 #include <sys/types.h>
+#if defined(_AIX)
+#include <stdarg.h>
+#endif
 
 __BEGIN_DECLS
+#if defined(_AIX)
+int asprintf(char **strp, char const *fmt, ...)
+	__printflike(2, 3);
+int vasprintf(char **strp, char const *fmt, va_list args)
+	__printflike(2, 0);
+#endif
+
 const char *fmtcheck(const char *, const char *);
 
 /* XXX: The function requires cooperation from the system libc to store the

include/bsd/sys/cdefs.h

@@ -86,6 +86,10 @@
 #define _SYS_CDEFS_H
 #endif
 
+/* Define the ABI for the current system. */
+//#define LIBBSD_SYS_TIME_BITS 0
+//#define LIBBSD_SYS_HAS_TIME64 0
+
 #define LIBBSD_CONCAT(x, y)	x ## y
 #define LIBBSD_STRING(x)	#x
 

include/bsd/timeconv.h

@@ -58,4 +58,17 @@ time_t _long_to_time(long tlong);
 int _time_to_int(time_t t);
 time_t _int_to_time(int tint);
 
+#if LIBBSD_SYS_TIME_BITS == 32 && LIBBSD_SYS_HAS_TIME64
+#if defined _TIME_BITS &&  _TIME_BITS == 64
+time_t LIBBSD_REDIRECT(_time32_to_time, (int32_t t32), _time32_to_time_time64);
+int32_t LIBBSD_REDIRECT(_time_to_time32, (time_t t), _time_to_time32_time64);
+time_t LIBBSD_REDIRECT(_time64_to_time, (int64_t t64), _time64_to_time_time64);
+int64_t LIBBSD_REDIRECT(_time_to_time64, (time_t t), _time_to_time64_time64);
+long LIBBSD_REDIRECT(_time_to_long, (time_t t), _time_to_long_time64);
+time_t LIBBSD_REDIRECT(_long_to_time, (long tlong), _long_to_time_time64);
+int LIBBSD_REDIRECT(_time_to_int, (time_t t), _time_to_int_time64);
+time_t LIBBSD_REDIRECT(_int_to_time, (int tint), _int_to_time_time64);
+#endif
+#endif
+
 #endif /* LIBBSD_TIMECONV_H */

include/bsd/vis.h

@@ -93,7 +93,7 @@
  * existing one in OpenBSD and Freedesktop's libbsd (the former having existed
  * for over ten years). Despite this incompatibility being reported during
  * development (see http://gnats.netbsd.org/44977) they still shipped it.
- * Even more unfortunately FreeBSD and later MacOS picked up this incompatible
+ * Even more unfortunately FreeBSD and later macOS picked up this incompatible
  * implementation.
  *
  * Provide both implementations and default for now on the historical one to

m4/libbsd-compiler.m4

@@ -70,3 +70,35 @@ int main() { return rc; }
   AM_CONDITIONAL([BUILD_LIBBSD_CTOR],
     [test "$libbsd_cv_gnu_init_array_support" = yes])
 ])
+
+# LIBBSD_SELECT_API(name, desc)
+# -----------------
+AC_DEFUN([LIBBSD_SELECT_API], [
+  AS_IF([test -z "$AS_TR_SH([api_$1])"], [
+    AC_MSG_ERROR([missing API selection for $1])
+  ], [test "$AS_TR_SH([api_$1])" = "unknown"], [
+    AC_MSG_ERROR([unknown ABI selection for $1])
+  ], [test "$AS_TR_SH([api_$1])" = "yes"], [
+    AC_DEFINE(AS_TR_CPP([LIBBSD_API_$1]), [1], [Provide API for $2])
+  ], [
+    AC_DEFINE(AS_TR_CPP([LIBBSD_API_$1]), [0])
+  ])
+  AM_CONDITIONAL(AS_TR_CPP([API_$1]),
+    [test "x$AS_TR_SH([api_$1])" = "xyes"])
+])
+
+# LIBBSD_SELECT_ABI(name, desc)
+# -----------------
+AC_DEFUN([LIBBSD_SELECT_ABI], [
+  AS_IF([test -z "$AS_TR_SH([abi_$1])"], [
+    AC_MSG_ERROR([missing ABI selection for $1])
+  ], [test "$AS_TR_SH([abi_$1])" = "unknown"], [
+    AC_MSG_ERROR([unknown ABI selection for $1])
+  ], [test "$AS_TR_SH([abi_$1])" = "yes"], [
+    AC_DEFINE(AS_TR_CPP([LIBBSD_ABI_$1]), [1], [Provide ABI for $2])
+  ], [
+    AC_DEFINE(AS_TR_CPP([LIBBSD_ABI_$1]), [0])
+  ])
+  AM_CONDITIONAL(AS_TR_CPP([ABI_$1]),
+    [test "x$AS_TR_SH([abi_$1])" = "xyes"])
+])

m4/libbsd-funcs.m4

@@ -0,0 +1,57 @@
+# Copyright © 2011-2024 Guillem Jover <guillem@hadrons.org>
+
+# LIBBSD_CHECK_PROGNAME
+# ---------------------
+AC_DEFUN([LIBBSD_CHECK_PROGNAME], [
+  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([[
+#include <stdio.h>
+extern char *__progname;
+    ]], [[
+printf("%s", __progname);
+    ]])
+  ], [
+    AC_DEFINE([HAVE___PROGNAME], [1], [Define to 1 if you have __progname])
+    AC_MSG_RESULT([yes])
+  ], [
+    AC_MSG_RESULT([no])
+  ])
+])
+
+# LIBBSD_CHECK_REGISTER_ATFORK
+# ----------------------------
+AC_DEFUN([LIBBSD_CHECK_REGISTER_ATFORK], [
+  AC_MSG_CHECKING([for __register_atfork])
+  AC_LINK_IFELSE([
+    AC_LANG_PROGRAM([[
+#include <stddef.h>
+extern void *__dso_handle;
+extern int __register_atfork(void (*)(void), void(*)(void), void (*)(void), void *);
+    ]], [[
+__register_atfork(NULL, NULL, NULL, __dso_handle);
+    ]])
+  ], [
+    AC_DEFINE([HAVE___REGISTER_ATFORK], [1],
+      [Define to 1 if you have __register_atfork])
+    AC_MSG_RESULT([yes])
+  ], [
+    LIBBSD_LIBS="$LIBBSD_LIBS -pthread"
+    AC_MSG_RESULT([no])
+  ])
+])

m4/libbsd-large.m4

@@ -0,0 +1,61 @@
+# Copyright © 2024 Guillem Jover <guillem@hadrons.org>
+
+# LIBBSD_SYS_TIME64
+# -----------------
+# Check for availability of time64 support.
+AC_DEFUN([LIBBSD_SYS_TIME64], [
+  # Check the default time_t size.
+  AC_CHECK_SIZEOF([time_t], [], [[
+#undef _TIME_BITS
+#include <time.h>
+]])
+  AS_IF([test $ac_cv_sizeof_time_t -eq 8], [
+    libbsd_sys_time_bits=64
+  ], [
+    libbsd_sys_time_bits=32
+  ])
+  AC_DEFINE_UNQUOTED([LIBBSD_SYS_TIME_BITS], [$libbsd_sys_time_bits],
+    [The number of bits for the default system time_t ABI])
+  AC_SUBST([LIBBSD_SYS_TIME_BITS], [$libbsd_sys_time_bits])
+  AS_UNSET([ac_cv_sizeof_time_t])
+  AM_CONDITIONAL([LIBBSD_SYS_IS_TIME32], [test "$libbsd_sys_time_bits" -eq 32])
+
+  # Check the whether the system supports 64-bit time_t.
+  AC_CHECK_SIZEOF([time_t], [], [[
+#define _FILE_OFFSET_BITS 64
+#define _TIME_BITS 64
+#include <time.h>
+]])
+  AS_IF([test $ac_cv_sizeof_time_t -eq 8], [
+    libbsd_sys_has_time64=1
+  ], [
+    libbsd_sys_has_time64=0
+  ])
+  AC_DEFINE_UNQUOTED([LIBBSD_SYS_HAS_TIME64], [$libbsd_sys_has_time64],
+    [Enable if the system supports 64-bit time_t])
+  AC_SUBST([LIBBSD_SYS_HAS_TIME64], [$libbsd_sys_has_time64])
+  AM_CONDITIONAL([LIBBSD_SYS_HAS_TIME64], [test "$libbsd_sys_has_time64" -eq 1])
+  AS_IF([test "$libbsd_sys_time_bits" -eq 32 && \
+         test "$libbsd_sys_has_time64" -eq 1], [
+    abi_time64=yes
+  ], [
+    abi_time64=no
+  ])
+  LIBBSD_SELECT_ABI([time64], [explicit time64 time_t support])
+
+  AC_CHECK_SIZEOF([off_t], [], [[
+#define _FILE_OFFSET_BITS 64
+#include <sys/types.h>
+]])
+  AS_IF([test $ac_cv_sizeof_off_t = 8], [
+    libbsd_sys_has_lfs=1
+  ], [
+    libbsd_sys_has_lfs=0
+  ])
+
+  AS_IF([test $libbsd_sys_has_lfs -eq 1 && \
+         test $libbsd_sys_time_bits -eq 32 && \
+         test $ac_cv_sizeof_time_t -eq 8], [
+    AC_DEFINE([_TIME_BITS], [64], [Enable 64-bit time_t support])
+  ])
+])

man/Makefile.am

@@ -11,7 +11,7 @@ CLEANFILES = \
 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) $< > $@
+	$(AM_V_GEN) $(SED) $(SED_MD5_SUBST) $< >$@
 
 dist_man_MANS = \
 	LIST_CLASS_ENTRY.3bsd \
@@ -141,13 +141,6 @@ dist_man_MANS = \
 	TAILQ_PREV.3bsd \
 	TAILQ_REMOVE.3bsd \
 	TAILQ_SWAP.3bsd \
-	TIMESPEC_TO_TIMEVAL.3bsd \
-	TIMEVAL_TO_TIMESPEC.3bsd \
-	arc4random.3bsd \
-	arc4random_addrandom.3bsd \
-	arc4random_buf.3bsd \
-	arc4random_stir.3bsd \
-	arc4random_uniform.3bsd \
 	be16dec.3bsd \
 	be16enc.3bsd \
 	be32dec.3bsd \
@@ -166,23 +159,6 @@ dist_man_MANS = \
 	bitstr_size.3bsd \
 	bitstring.3bsd \
 	byteorder.3bsd \
-	closefrom.3bsd \
-	dehumanize_number.3bsd \
-	errc.3bsd \
-	expand_number.3bsd \
-	explicit_bzero.3bsd \
-	fgetln.3bsd \
-	fgetwln.3bsd \
-	flopen.3bsd \
-	fmtcheck.3bsd \
-	fparseln.3bsd \
-	freezero.3bsd \
-	getbsize.3bsd \
-	getmode.3bsd \
-	getpeereid.3bsd \
-	group_from_gid.3bsd \
-	heapsort.3bsd \
-	humanize_number.3bsd \
 	le16dec.3bsd \
 	le16enc.3bsd \
 	le32dec.3bsd \
@@ -190,110 +166,270 @@ dist_man_MANS = \
 	le64dec.3bsd \
 	le64enc.3bsd \
 	libbsd.7 \
-	mergesort.3bsd \
-	pidfile.3bsd \
-	pidfile_close.3bsd \
-	pidfile_open.3bsd \
-	pidfile_remove.3bsd \
-	pidfile_write.3bsd \
-	pwcache.3bsd \
 	queue.3bsd \
-	radixsort.3bsd \
-	readpassphrase.3bsd \
-	reallocarray.3bsd \
-	reallocf.3bsd \
-	recallocarray.3bsd \
-	setmode.3bsd \
-	setproctitle.3bsd \
-	setproctitle_init.3bsd \
-	sl_add.3bsd \
-	sl_delete.3bsd \
-	sl_find.3bsd \
-	sl_free.3bsd \
-	sl_init.3bsd \
-	sradixsort.3bsd \
-	stringlist.3bsd \
-	strnstr.3bsd \
-	strnunvis.3bsd \
-	strnvis.3bsd \
-	strtoi.3bsd \
-	strtonum.3bsd \
-	strtou.3bsd \
-	strunvis.3bsd \
-	strvis.3bsd \
-	strvisx.3bsd \
 	timeradd.3bsd \
 	timerclear.3bsd \
 	timercmp.3bsd \
 	timerisset.3bsd \
 	timersub.3bsd \
-	timespec.3bsd \
 	timespecadd.3bsd \
 	timespecclear.3bsd \
 	timespeccmp.3bsd \
 	timespecisset.3bsd \
 	timespecsub.3bsd \
-	timeval.3bsd \
 	tree.3bsd \
-	unvis.3bsd \
-	user_from_uid.3bsd \
-	vis.3bsd \
 	# EOL
 
-if NEED_PROGNAME
+if API_TIME_MACROS
+dist_man_MANS += \
+	TIMESPEC_TO_TIMEVAL.3bsd \
+	TIMEVAL_TO_TIMESPEC.3bsd \
+	# EOL
+endif
+
+if ABI_ACCMODE
+dist_man_MANS += \
+	getmode.3bsd \
+	setmode.3bsd \
+	# EOL
+endif
+
+if ABI_ARC4RANDOM
+dist_man_MANS += \
+	arc4random.3bsd \
+	arc4random_addrandom.3bsd \
+	arc4random_buf.3bsd \
+	arc4random_stir.3bsd \
+	arc4random_uniform.3bsd \
+	# EOL
+endif
+
+if ABI_CLOSEFROM
+dist_man_MANS += \
+	closefrom.3bsd \
+	# EOL
+endif
+
+if ABI_ERRC
+dist_man_MANS += \
+	errc.3bsd \
+	verrc.3bsd \
+	vwarnc.3bsd \
+	warnc.3bsd \
+	# EOL
+endif
+
+if ABI_EXPAND_NUMBER
+dist_man_MANS += \
+	expand_number.3bsd \
+	# EOL
+endif
+
+if ABI_EXPLICIT_BZERO
+dist_man_MANS += \
+	explicit_bzero.3bsd \
+	# EOL
+endif
+
+if ABI_FGETLN
+dist_man_MANS += \
+	fgetln.3bsd \
+	fgetwln.3bsd \
+	fparseln.3bsd \
+	# EOL
+endif
+
+if ABI_FLOPEN
+dist_man_MANS += \
+	flopen.3bsd \
+	# EOL
+endif
+
+if ABI_FMTCHECK
+dist_man_MANS += \
+	fmtcheck.3bsd \
+	# EOL
+endif
+
+if ABI_FPURGE
+dist_man_MANS += \
+	fpurge.3bsd \
+	# EOL
+endif
+
+if ABI_FREEZERO
+dist_man_MANS += \
+	freezero.3bsd \
+	# EOL
+endif
+
+if ABI_FUNOPEN
+dist_man_MANS += \
+	funopen.3bsd \
+	# EOL
+endif
+
+if ABI_GETBSIZE
+dist_man_MANS += \
+	getbsize.3bsd \
+	# EOL
+endif
+
+if ABI_GETPEEREID
+dist_man_MANS += \
+	getpeereid.3bsd \
+	# EOL
+endif
+
+if ABI_HUMANIZE_NUMBER
+dist_man_MANS += \
+	dehumanize_number.3bsd \
+	humanize_number.3bsd \
+	# EOL
+endif
+
+if ABI_MD5
+dist_man_MANS += \
+	md5.3bsd \
+	# EOL
+endif
+
+if ABI_NLIST
+dist_man_MANS += \
+	nlist.3bsd \
+	# EOL
+endif
+
+if ABI_PIDFILE
+dist_man_MANS += \
+	pidfile.3bsd \
+	pidfile_close.3bsd \
+	pidfile_open.3bsd \
+	pidfile_remove.3bsd \
+	pidfile_write.3bsd \
+	# EOL
+endif
+
+if ABI_PROCTITLE
+dist_man_MANS += \
+	setproctitle.3bsd \
+	setproctitle_init.3bsd \
+	# EOL
+endif
+
+if ABI_PROGNAME
 dist_man_MANS += \
 	getprogname.3bsd \
 	setprogname.3bsd \
 	# EOL
 endif
 
-if NEED_MD5
+if ABI_PWCACHE
 dist_man_MANS += \
-	md5.3bsd \
+	pwcache.3bsd \
+	gid_from_group.3bsd \
+	uid_from_user.3bsd \
+	# EOL
+
+if ABI_NAME_FROM_ID
+dist_man_MANS += \
+	group_from_gid.3bsd \
+	user_from_uid.3bsd \
+	# EOL
+endif
+endif
+
+if ABI_READPASSPHRASE
+dist_man_MANS += \
+	readpassphrase.3bsd \
 	# EOL
 endif
 
-if NEED_NLIST
+if ABI_REALLOCARRAY
 dist_man_MANS += \
-	nlist.3bsd \
+	reallocarray.3bsd \
 	# EOL
 endif
 
-if NEED_STRL
+if ABI_REALLOCF
+dist_man_MANS += \
+	reallocf.3bsd \
+	# EOL
+endif
+
+if ABI_RECALLOCARRAY
+dist_man_MANS += \
+	recallocarray.3bsd \
+	# EOL
+endif
+
+if ABI_SORT
+dist_man_MANS += \
+	heapsort.3bsd \
+	mergesort.3bsd \
+	radixsort.3bsd \
+	sradixsort.3bsd \
+	# EOL
+endif
+
+if ABI_STRINGLIST
+dist_man_MANS += \
+	sl_add.3bsd \
+	sl_delete.3bsd \
+	sl_find.3bsd \
+	sl_free.3bsd \
+	sl_init.3bsd \
+	stringlist.3bsd \
+	# EOL
+endif
+
+if ABI_STRL
 dist_man_MANS += \
 	strlcat.3bsd \
 	strlcpy.3bsd \
 	# EOL
 endif
 
-if NEED_WCSL
-dist_man_MANS += \
-	wcslcat.3bsd \
-	wcslcpy.3bsd \
-	# EOL
-endif
-
-if NEED_STRMODE
+if ABI_STRMODE
 dist_man_MANS += \
 	strmode.3bsd \
 	# EOL
 endif
 
-if NEED_ID_FROM_NAME
+if ABI_STRNSTR
 dist_man_MANS += \
-	uid_from_user.3bsd \
-	gid_from_group.3bsd \
+	strnstr.3bsd \
 	# EOL
 endif
 
-if NEED_FPURGE
+if ABI_STRTOX
 dist_man_MANS += \
-	fpurge.3bsd \
+	strtoi.3bsd \
+	strtou.3bsd \
 	# EOL
 endif
 
-if NEED_FUNOPEN
+if ABI_STRTONUM
 dist_man_MANS += \
-	funopen.3bsd \
+	strtonum.3bsd \
+	# EOL
+endif
+
+if ABI_VIS
+dist_man_MANS += \
+	strnunvis.3bsd \
+	strnvis.3bsd \
+	strunvis.3bsd \
+	strvis.3bsd \
+	strvisx.3bsd \
+	unvis.3bsd \
+	vis.3bsd \
+	# EOL
+endif
+
+if ABI_WCSL
+dist_man_MANS += \
+	wcslcat.3bsd \
+	wcslcpy.3bsd \
 	# EOL
 endif

man/TIMESPEC_TO_TIMEVAL.3bsd

@@ -1 +1,100 @@
-.so man3/timeval.3bsd
+.\" $NetBSD: timeval.3,v 1.12 2011/04/12 08:39:26 jruoho Exp $
+.\"
+.\" Copyright (c) 2010 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Jukka Ruohonen.
+.\"
+.\" 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.
+.\"
+.Dd April 12, 2011
+.Dt TIMEVAL_TO_TIMESPEC 3bsd
+.Os
+.Sh NAME
+.Nm TIMEVAL_TO_TIMESPEC ,
+.Nm TIMESPEC_TO_TIMEVAL
+.Nd time structures conversion macros
+.Sh LIBRARY
+.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
+.ds doc-str-Lb-libbsd \*[str-Lb-libbsd]
+.Lb libbsd
+.Sh SYNOPSIS
+.In sys/time.h
+(See
+.Xr libbsd 7
+for include usage.)
+.Ft void
+.Fn TIMEVAL_TO_TIMESPEC "struct timeval *tv" "struct timespec *ts"
+.Ft void
+.Fn TIMESPEC_TO_TIMEVAL "struct timeval *tv" "struct timespec *ts"
+.Sh DESCRIPTION
+The
+.Va timeval
+structure represents elapsed time, in whole seconds,
+and the rest of the elapsed time in microseconds.
+.Pp
+The
+.Va timespec
+structure represents elapsed time, in whole seconds,
+and the rest of the elapsed time in nanoseconds.
+.Pp
+A microsecond is equal to one millionth of a second,
+1000 nanoseconds, or 1/1000 milliseconds.
+To ease the conversions, the macros
+.Fn TIMEVAL_TO_TIMESPEC
+and
+.Fn TIMESPEC_TO_TIMEVAL
+can be used to convert between
+.Em struct timeval
+and
+.Em struct timespec .
+.Sh EXAMPLES
+It can be stressed that the traditional
+.Tn UNIX
+.Va timeval
+and
+.Va timespec
+structures represent elapsed time, measured by the system clock.
+The following sketch implements a function suitable
+for use in a context where the
+.Va timespec
+structure is required for a conditional timeout:
+.Bd -literal -offset indent
+static void
+example(struct timespec *spec, time_t minutes)
+{
+	struct timeval elapsed;
+
+	(void)gettimeofday(&elapsed, NULL);
+
+	TIMEVAL_TO_TIMESPEC(&elapsed, spec);
+
+	/* Add the offset for timeout in minutes. */
+	spec->tv_sec = spec->tv_sec + minutes * 60;
+}
+.Ed
+.Pp
+A better alternative would use the more precise
+.Xr clock_gettime 2 .
+.Sh SEE ALSO
+.Xr timeradd 3bsd

man/TIMEVAL_TO_TIMESPEC.3bsd

@@ -1 +1 @@
-.so man3/timeval.3bsd
+.so man3/TIMESPEC_TO_TIMEVAL.3bsd

man/funopen.3bsd

@@ -168,11 +168,10 @@ functions first appeared in
 .Sh BUGS
 The
 .Fn funopen
-function
-may not be portable to systems other than
-.Bx
-and glibc-based (as the libbsd implementation is only provided when the
-system has
+function may not be portable to systems other than
+.Bx ,
+glibc- and musl-based ones
+(as the libbsd implementation is only provided when the system has
 .Fn fopencookie
 available).
 .Pp

man/libbsd.7

@@ -1,6 +1,6 @@
 .\" libbsd man page
 .\"
-.\" Copyright © 2017-2022 Guillem Jover <guillem@hadrons.org>
+.\" Copyright © 2017-2024 Guillem Jover <guillem@hadrons.org>
 .\"
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
@@ -24,7 +24,7 @@
 .\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 .\" ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd August 3, 2022
+.Dd January 8, 2024
 .Dt libbsd 7
 .Os
 .Sh NAME
@@ -76,7 +76,7 @@ The package also provides a
 .Nm libbsd-ctor
 static library that can be used to inject automatic constructors into a
 program so that the
-.Xr setproctitle_init 3
+.Xr setproctitle_init 3bsd
 function gets invoked automatically at startup time.
 This can be done with the
 .Xr pkgconf 1
@@ -136,13 +136,13 @@ at build-time.
 This is the list of functions that provide multiple implementations:
 .Pp
 .Bl -tag -width 4m -compact
-.It Fn strnvis 3
-.It Fn strnunvis 3
+.It Xr strnvis 3bsd
+.It Xr strnunvis 3bsd
 .Nx
 added
-.Xr strnvis 3
+.Xr strnvis 3bsd
 and
-.Xr strnunvis 3
+.Xr strnunvis 3bsd
 but unfortunately made it incompatible with the existing one in
 .Ox
 and Freedesktop's libbsd (the former having existed for over ten years).
@@ -150,13 +150,13 @@ Despite this incompatibility being reported during development (see
 http://gnats.netbsd.org/44977) they still shipped it.
 Even more unfortunately
 .Fx
-and later MacOS picked up this incompatible implementation.
+and later macOS picked up this incompatible implementation.
 .Pp
 Provide both implementations and default for now to the historical one to
 avoid breakage, but we will switch to the
 .Nx
 one in a later release, which is internally consistent with the other
-.Xr vis 3
+.Xr vis 3bsd
 functions and is now more widespread.
 Define
 .Dv LIBBSD_NETBSD_VIS
@@ -178,7 +178,7 @@ or non-buggy way; or because there are better more portable replacements now.
 .Pp
 This is the list of currently deprecated macros and functions:
 .Bl -tag -width 4m
-.It Fn fgetln 3
+.It Xr fgetln 3bsd
 Unportable, requires assistance from the stdio layer.
 An implementation has to choose between leaking buffers or being reentrant
 for a limited amount of streams (this implementation chose the latter with
@@ -187,7 +187,7 @@ Use
 .Xr getline 3
 instead, which is available in many systems and required by
 .St -p1003.1-2008 .
-.It Fn fgetwln 3
+.It Xr fgetwln 3bsd
 Unportable, requires assistance from the stdio layer.
 An implementation has to choose between leaking buffers or being reentrant
 for a limited amount of streams (this implementation chose the latter with
@@ -198,9 +198,9 @@ instead, which is available in many systems and required by
 .St -isoC-99
 and
 .St -p1003.1-2001 .
-.It Fn funopen 3
+.It Xr funopen 3bsd
 Unportable, requires assistance from the stdio layer or some hook framework.
-On GNU systems the
+On glibc- and musl-based systems the
 .Xr fopencookie 3
 function can be used.
 Otherwise the code needs to be prepared for neither of these functions being
@@ -215,42 +215,53 @@ are present in all major
 for example.
 .Pp
 .Bl -tag -width 4m -compact
-.It Fn MD5Init 3
-.It Fn MD5Update 3
-.It Fn MD5Pad 3
-.It Fn MD5Final 3
-.It Fn MD5Transform 3
-.It Fn MD5End 3
-.It Fn MD5File 3
-.It Fn MD5FileChunk 3
-.It Fn MD5Data 3
+.It Xr MD5Init 3
+.It Xr MD5Update 3
+.It Xr MD5Pad 3
+.It Xr MD5Final 3
+.It Xr MD5Transform 3
+.It Xr MD5End 3
+.It Xr MD5File 3
+.It Xr MD5FileChunk 3
+.It Xr MD5Data 3
 The set of MD5 digest functions are now proxies for the implementations
 provided by the
 .Nm libmd
 companion library, so it is advised to switch to use that directly instead.
-.It Fn explicit_bzero 3
+.It Xr explicit_bzero 3bsd
 This function is provided by
 .Nm glibc
 2.25, and
 .Nm musl
 1.1.20.
-.It Fn reallocarray 3
+.It Xr reallocarray 3bsd
 This function is provided by
 .Nm glibc
 2.26, and
 .Nm musl
 1.2.2.
-.It Xr arc4random 3
-.It Xr arc4random_buf 3
-.It Xr arc4random_uniform 3
+.It Xr closefrom 3bsd
+This function is provided by
+.Nm glibc
+2.34.
+.It Xr arc4random 3bsd
+.It Xr arc4random_buf 3bsd
+.It Xr arc4random_uniform 3bsd
 These functions are provided by
 .Nm glibc
 2.36.
 Note that it does not provide the
-.Xr arc4random_stir 3
+.Xr arc4random_stir 3bsd
 and
-.Xr arc4random_addrandom 3
+.Xr arc4random_addrandom 3bsd
 functions.
+.It Xr strlcpy 3bsd
+.It Xr strlcat 3bsd
+These functions are provided by
+.Nm glibc
+2.38, and
+.Nm musl
+0.5.0.
 .El
 .Sh SEE ALSO
 .Xr arc4random 3bsd ,

man/strtoi.3bsd

@@ -1,4 +1,4 @@
-.\"	$NetBSD: strtoi.3,v 1.7 2017/07/03 21:32:50 wiz Exp $
+.\"	$NetBSD: strtoi.3,v 1.10 2024/02/10 18:43:51 andvar Exp $
 .\"
 .\" Copyright (c) 1990, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -36,12 +36,12 @@
 .\" Created by Kamil Rytarowski, based on ID:
 .\" NetBSD: strtol.3,v 1.31 2015/03/11 09:57:35 wiz Exp
 .\"
-.Dd November 13, 2015
+.Dd January 20, 2024
 .Dt strtoi 3bsd
 .Os
 .Sh NAME
 .Nm strtoi
-.Nd convert string value to an intmax_t integer
+.Nd convert a string value to an intmax_t integer
 .Sh LIBRARY
 .ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
 .ds doc-str-Lb-libbsd \*[str-Lb-libbsd]
@@ -63,8 +63,7 @@ for include usage.)
 .Sh DESCRIPTION
 The
 .Fn strtoi
-function
-converts the string in
+function converts the string in
 .Fa nptr
 to an
 .Ft intmax_t
@@ -77,7 +76,7 @@ and ensures that the result is always in the range [
 .Fa lo ..
 .Fa hi
 ].
-In adddition it always places
+In addition it always places
 .Dv 0
 on success or a conversion status in the
 .Fa rstatus
@@ -122,10 +121,11 @@ is taken as 10 (decimal) unless the next character is
 .Ql 0 ,
 in which case it is taken as 8 (octal).
 .Pp
-The remainder of the string is converted to a
+The remainder of the string is converted to an
 .Em intmax_t
 value in the obvious manner,
-stopping at the first character which is not a valid digit
+stopping at the end of the string
+or at the first character which is not a valid digit
 in the given base.
 (In bases above 10, the letter
 .Ql A
@@ -206,6 +206,12 @@ or the range given was invalid, i.e.
 >
 .Fa hi .
 .El
+.Pp
+The range check is more important than the unconverted characters check,
+and it is performed first.
+If a program needs to know if there were unconverted characters when an
+out of range number has been provided, it needs to supply and test
+.Fa endptr.
 .Sh SEE ALSO
 .Xr atof 3 ,
 .Xr atoi 3 ,

man/strtou.3bsd

@@ -1,4 +1,4 @@
-.\"	$NetBSD: strtou.3,v 1.7 2017/07/03 21:32:50 wiz Exp $
+.\"	$NetBSD: strtou.3,v 1.8 2024/01/20 16:13:39 christos Exp $
 .\"
 .\" Copyright (c) 1990, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -36,12 +36,12 @@
 .\" Created by Kamil Rytarowski, based on ID:
 .\" NetBSD: strtoul.3,v 1.29 2015/03/10 13:00:58 christos Exp
 .\"
-.Dd November 13, 2015
+.Dd January 20, 2024
 .Dt strtou 3bsd
 .Os
 .Sh NAME
 .Nm strtou
-.Nd convert a string to an uintmax_t integer
+.Nd convert a string value to an uintmax_t integer
 .Sh LIBRARY
 .ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
 .ds doc-str-Lb-libbsd \*[str-Lb-libbsd]
@@ -76,7 +76,7 @@ and ensures that the result is always in the range [
 .Fa lo ..
 .Fa hi
 ].
-In adddition it always places
+In addition it always places
 .Dv 0
 on success or a conversion status in the
 .Fa rstatus
@@ -125,7 +125,7 @@ The remainder of the string is converted to an
 .Em uintmax_t
 value in the obvious manner,
 stopping at the end of the string
-or at the first character that does not produce a valid digit
+or at the first character which is not a valid digit
 in the given base.
 (In bases above 10, the letter
 .Ql A
@@ -200,12 +200,18 @@ In this case,
 .Fa endptr
 points to the first unconverted character.
 .It Bq Er ERANGE
-The given string was out of range; the value converted has been clamped; or
-the range given was invalid, i.e.
+The given string was out of range; the value converted has been clamped;
+or the range given was invalid, i.e.
 .Fa lo
 >
 .Fa hi .
 .El
+.Pp
+The range check is more important than the unconverted characters check,
+and it is performed first.
+If a program needs to know if there were unconverted characters when an
+out of range number has been provided, it needs to supply and test
+.Fa endptr.
 .Sh SEE ALSO
 .Xr atof 3 ,
 .Xr atoi 3 ,
@@ -220,13 +226,13 @@ the range given was invalid, i.e.
 .Xr strtoull 3 ,
 .Xr strtoumax 3
 .Sh STANDARDS
-.ds doc-operating-system-NetBSD-7.0 7.0
 The
 .Fn strtou
 function is a
 .Nx
 extension.
 .Sh HISTORY
+.ds doc-operating-system-NetBSD-7.0 7.0
 The
 .Fn strtou
 function first appeared in

man/timespec.3bsd

@@ -1 +0,0 @@
-.so man3/timeval.3bsd

man/timeval.3bsd

@@ -1,134 +0,0 @@
-.\" $NetBSD: timeval.3,v 1.12 2011/04/12 08:39:26 jruoho Exp $
-.\"
-.\" Copyright (c) 2010 The NetBSD Foundation, Inc.
-.\" All rights reserved.
-.\"
-.\" This code is derived from software contributed to The NetBSD Foundation
-.\" by Jukka Ruohonen.
-.\"
-.\" 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.
-.\"
-.Dd April 12, 2011
-.Dt timeval 3bsd
-.Os
-.Sh NAME
-.Nm timeval ,
-.Nm timespec
-.Nd time structures
-.Sh LIBRARY
-.ds str-Lb-libbsd Utility functions from BSD systems (libbsd, \-lbsd)
-.ds doc-str-Lb-libbsd \*[str-Lb-libbsd]
-.Lb libbsd
-.Sh SYNOPSIS
-.In sys/time.h
-(See
-.Xr libbsd 7
-for include usage.)
-.Ft void
-.Fn TIMEVAL_TO_TIMESPEC "struct timeval *tv" "struct timespec *ts"
-.Ft void
-.Fn TIMESPEC_TO_TIMEVAL "struct timeval *tv" "struct timespec *ts"
-.Sh DESCRIPTION
-The
-.In sys/time.h
-header, included by
-.In time.h ,
-defines various structures related to time and timers.
-.Bl -enum -offset 1n
-.It
-The following structure is used by
-.Xr gettimeofday 2 ,
-among others:
-.Bd -literal -offset indent
-struct timeval {
-	time_t		tv_sec;
-	suseconds_t	tv_usec;
-};
-.Ed
-.Pp
-The
-.Va tv_sec
-member represents the elapsed time, in whole seconds.
-The
-.Va tv_usec
-member captures rest of the elapsed time,
-represented as the number of microseconds.
-.It
-The following structure is used by
-.Xr nanosleep 2 ,
-among others:
-.Bd -literal -offset indent
-struct timespec {
-	time_t		tv_sec;
-	long		tv_nsec;
-};
-.Ed
-.Pp
-The
-.Va tv_sec
-member is again the elapsed time in whole seconds.
-The
-.Va tv_nsec
-member represents the rest of the elapsed time in nanoseconds.
-.Pp
-A microsecond is equal to one millionth of a second,
-1000 nanoseconds, or 1/1000 milliseconds.
-To ease the conversions, the macros
-.Fn TIMEVAL_TO_TIMESPEC
-and
-.Fn TIMESPEC_TO_TIMEVAL
-can be used to convert between
-.Em struct timeval
-and
-.Em struct timespec .
-.El
-.Sh EXAMPLES
-It can be stressed that the traditional
-.Tn UNIX
-.Va timeval
-and
-.Va timespec
-structures represent elapsed time, measured by the system clock.
-The following sketch implements a function suitable
-for use in a context where the
-.Va timespec
-structure is required for a conditional timeout:
-.Bd -literal -offset indent
-static void
-example(struct timespec *spec, time_t minutes)
-{
-	struct timeval elapsed;
-
-	(void)gettimeofday(&elapsed, NULL);
-
-	_DIAGASSERT(spec != NULL);
-	TIMEVAL_TO_TIMESPEC(&elapsed, spec);
-
-	/* Add the offset for timeout in minutes. */
-	spec->tv_sec = spec->tv_sec + minutes * 60;
-}
-.Ed
-.Pp
-A better alternative would use the more precise
-.Xr clock_gettime 2 .
-.Sh SEE ALSO
-.Xr timeradd 3bsd

man/verrc.3bsd

@@ -0,0 +1 @@
+.so man3/errc.3bsd

man/vwarnc.3bsd

@@ -0,0 +1 @@
+.so man3/errc.3bsd

man/warnc.3bsd

@@ -0,0 +1 @@
+.so man3/errc.3bsd

src/Makefile.am

@@ -28,7 +28,7 @@ libbsd_la_included_sources = \
 
 CLEANFILES =
 EXTRA_DIST = \
-	libbsd.map \
+	libbsd.map.in \
 	libbsd.pc.in \
 	libbsd-ctor.pc.in \
 	libbsd-overlay.pc.in \
@@ -53,6 +53,7 @@ endif
 EXTRA_libbsd_la_DEPENDENCIES = \
 	$(libbsd_la_included_sources) \
 	libbsd.map \
+	libbsd.map.in \
 	# EOL
 libbsd_la_LIBADD = \
 	$(MD5_LIBS) \
@@ -60,11 +61,11 @@ libbsd_la_LIBADD = \
 	# EOL
 libbsd_la_LDFLAGS = \
 	-no-undefined \
-	-version-number $(LIBBSD_ABI) \
+	-version-number $(SOVERSION) \
 	# EOL
 if HAVE_LINKER_VERSION_SCRIPT
 libbsd_la_LDFLAGS += \
-	-Wl,--version-script=$(srcdir)/libbsd.map \
+	-Wl,--version-script=libbsd.map \
 	# EOL
 else
 libbsd_la_LDFLAGS += \
@@ -75,57 +76,17 @@ EXTRA_libbsd_la_DEPENDENCIES += \
 	# EOL
 endif
 libbsd_la_SOURCES = \
-	closefrom.c \
-	dehumanize_number.c \
-	err.c \
-	expand_number.c \
-	explicit_bzero.c \
-	fgetln.c \
-	fgetwln.c \
-	flopen.c \
-	fmtcheck.c \
-	fparseln.c \
-	freezero.c \
-	getbsize.c \
-	getpeereid.c \
-	heapsort.c \
-	humanize_number.c \
-	inet_net_pton.c \
 	local-elf.h \
 	local-link.h \
-	merge.c \
-	pidfile.c \
-	pwcache.c \
-	radixsort.c \
-	readpassphrase.c \
-	reallocarray.c \
-	reallocf.c \
-	recallocarray.c \
+	# EOL
+
+if ABI_ACCMODE
+libbsd_la_SOURCES += \
 	setmode.c \
-	setproctitle.c \
-	stringlist.c \
-	strnstr.c \
-	strtoi.c \
-	strtonum.c \
-	strtou.c \
-	timeconv.c \
-	unvis.c \
-	vis.c \
-	# EOL
-
-if NEED_PROGNAME
-libbsd_la_SOURCES += \
-	progname.c \
 	# EOL
 endif
 
-if NEED_BSD_GETOPT
-libbsd_la_SOURCES += \
-	bsd_getopt.c \
-	# EOL
-endif
-
-if NEED_ARC4RANDOM
+if ABI_ARC4RANDOM
 if !HAVE_GETENTROPY
 libbsd_la_SOURCES += \
 	getentropy.c \
@@ -142,51 +103,239 @@ libbsd_la_SOURCES += \
 	# EOL
 endif
 
-if NEED_MD5
+if ABI_ASPRINTF
+libbsd_la_SOURCES += \
+	asprintf.c \
+	vasprintf.c \
+	# EOL
+endif
+
+if ABI_BSD_GETOPT
+libbsd_la_SOURCES += \
+	bsd_getopt.c \
+	# EOL
+endif
+
+if ABI_CLOSEFROM
+libbsd_la_SOURCES += \
+	closefrom.c \
+	# EOL
+endif
+
+if ABI_ERR
+libbsd_la_SOURCES += \
+	err.c \
+	# EOL
+endif
+
+if ABI_ERRC
+libbsd_la_SOURCES += \
+	errc.c \
+	# EOL
+endif
+
+if ABI_EXPAND_NUMBER
+libbsd_la_SOURCES += \
+	expand_number.c \
+	# EOL
+endif
+
+if ABI_EXPLICIT_BZERO
+libbsd_la_SOURCES += \
+	explicit_bzero.c \
+	# EOL
+endif
+
+if ABI_FGETLN
+libbsd_la_SOURCES += \
+	fgetln.c \
+	fgetwln.c \
+	fparseln.c \
+	# EOL
+endif
+
+if ABI_FLOPEN
+libbsd_la_SOURCES += \
+	flopen.c \
+	# EOL
+endif
+
+if ABI_FMTCHECK
+libbsd_la_SOURCES += \
+	fmtcheck.c \
+	# EOL
+endif
+
+if ABI_FPURGE
+libbsd_la_SOURCES += \
+	fpurge.c \
+	# EOL
+endif
+
+if ABI_FREEZERO
+libbsd_la_SOURCES += \
+	freezero.c \
+	# EOL
+endif
+
+if ABI_FUNOPEN
+libbsd_la_SOURCES += \
+	funopen.c \
+	# EOL
+endif
+
+if ABI_GETBSIZE
+libbsd_la_SOURCES += \
+	getbsize.c \
+	# EOL
+endif
+
+if ABI_GETPEEREID
+libbsd_la_SOURCES += \
+	getpeereid.c \
+	# EOL
+endif
+
+if ABI_HUMANIZE_NUMBER
+libbsd_la_SOURCES += \
+	dehumanize_number.c \
+	humanize_number.c \
+	# EOL
+endif
+
+if ABI_INET_NET_PTON
+libbsd_la_SOURCES += \
+	inet_net_pton.c \
+	# EOL
+endif
+
+if ABI_MD5
 libbsd_la_SOURCES += \
 	md5.c \
 	# EOL
 endif
 
-if NEED_NLIST
+if ABI_NLIST
 libbsd_la_SOURCES += \
 	nlist.c \
 	# EOL
 endif
 
-if NEED_STRL
+if ABI_PIDFILE
+libbsd_la_SOURCES += \
+	pidfile.c \
+	# EOL
+endif
+
+if ABI_PROCTITLE
+libbsd_la_SOURCES += \
+	setproctitle.c \
+	# EOL
+endif
+
+if ABI_PROGNAME
+libbsd_la_SOURCES += \
+	progname.c \
+	# EOL
+endif
+
+if ABI_PWCACHE
+libbsd_la_SOURCES += \
+	pwcache.c \
+	# EOL
+endif
+
+if ABI_READPASSPHRASE
+libbsd_la_SOURCES += \
+	readpassphrase.c \
+	# EOL
+endif
+
+if ABI_REALLOCARRAY
+libbsd_la_SOURCES += \
+	reallocarray.c \
+	# EOL
+endif
+
+if ABI_REALLOCF
+libbsd_la_SOURCES += \
+	reallocf.c \
+	# EOL
+endif
+
+if ABI_RECALLOCARRAY
+libbsd_la_SOURCES += \
+	recallocarray.c \
+	# EOL
+endif
+
+if ABI_SORT
+libbsd_la_SOURCES += \
+	heapsort.c \
+	merge.c \
+	radixsort.c \
+	# EOL
+endif
+
+if ABI_STRINGLIST
+libbsd_la_SOURCES += \
+	stringlist.c \
+	# EOL
+endif
+
+if ABI_STRL
 libbsd_la_SOURCES += \
 	strlcat.c \
 	strlcpy.c \
 	# EOL
 endif
 
-if NEED_WCSL
+if ABI_STRMODE
+libbsd_la_SOURCES += \
+	strmode.c \
+	# EOL
+endif
+
+if ABI_STRNSTR
+libbsd_la_SOURCES += \
+	strnstr.c \
+	# EOL
+endif
+
+if ABI_STRTONUM
+libbsd_la_SOURCES += \
+	strtonum.c \
+	# EOL
+endif
+
+if ABI_STRTOX
+libbsd_la_SOURCES += \
+	strtoi.c \
+	strtou.c \
+	# EOL
+endif
+
+if ABI_TIMECONV
+libbsd_la_SOURCES += \
+	timeconv.c \
+	# EOL
+endif
+
+if ABI_VIS
+libbsd_la_SOURCES += \
+	unvis.c \
+	vis.c \
+	# EOL
+endif
+
+if ABI_WCSL
 libbsd_la_SOURCES += \
 	wcslcat.c \
 	wcslcpy.c \
 	# EOL
 endif
 
-if NEED_STRMODE
-libbsd_la_SOURCES += \
-	strmode.c \
-	# EOL
-endif
-
-if NEED_FPURGE
-libbsd_la_SOURCES += \
-	fpurge.c \
-	# EOL
-endif
-
-if NEED_FUNOPEN
-libbsd_la_SOURCES += \
-	funopen.c \
-	# EOL
-endif
-
-if NEED_TRANSPARENT_LIBMD
+if ABI_TRANSPARENT_LIBMD
 CLEANFILES += \
 	format.ld \
 	# EOL
@@ -194,23 +343,29 @@ endif
 
 DISTCLEANFILES = \
 	libbsd.sym \
+	libbsd.map \
 	# EOL
 
 libbsd_ctor_a_SOURCES = \
 	setproctitle_ctor.c \
 	# EOL
 
+# Generate the library map file with the pre-processor to selectively include
+# symbols depending on the host system, otherwise some linkers might fail.
+libbsd.map: libbsd.map.in
+	$(AM_V_GEN) $(CPP) $(AM_CPPFLAGS) $(CPPFLAGS) -P - <$(srcdir)/libbsd.map.in >$@
+
 # Generate a simple libtool symbol export list to be used as a fallback if
 # there is no version script support.
 libbsd.sym: libbsd.map
-	$(AM_V_GEN) $(SED) -ne 's/^[[:space:]]\{1,\}\([A-Za-z0-9_]\{1,\}\);/\1/p' libbsd.map > $@
+	$(AM_V_GEN) $(SED) -ne 's/^[[:space:]]\{1,\}\([A-Za-z0-9_]\{1,\}\);/\1/p' libbsd.map >$@
 
-if NEED_TRANSPARENT_LIBMD
+if ABI_TRANSPARENT_LIBMD
 TRANSPARENT_LIBMD_DEPENDS = format.ld
 
 format.ld:
 	$(CC) -shared -nostdlib -nostartfiles -x assembler /dev/null -o $@.so
-	$(OBJDUMP) -f $@.so | sed -n 's/.*file format \(.*\)/OUTPUT_FORMAT(\1)/;T;p' > $@
+	$(OBJDUMP) -f $@.so | sed -n 's/.*file format \(.*\)/OUTPUT_FORMAT(\1)/;T;p' >$@
 	rm -f $@.so
 endif
 
@@ -222,7 +377,7 @@ install-exec-hook: $(TRANSPARENT_LIBMD_DEPENDS)
 		mv $(DESTDIR)$(libdir)/libbsd*.so.* \
 		   $(DESTDIR)$(runtimelibdir)/; \
 	fi
-if NEED_TRANSPARENT_LIBMD
+if ABI_TRANSPARENT_LIBMD
 # The "GNU ld script" magic is required so that GNU ldconfig does not complain
 # about an unknown format file.
 	soname=`readlink $(DESTDIR)$(libdir)/libbsd.so`; \

src/asprintf.c

@@ -0,0 +1,43 @@
+/*
+ * Copyright © 2010-2024 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 <config.h>
+
+#include <stdarg.h>
+#include <stdio.h>
+
+int
+asprintf(char **strp, char const *fmt, ...)
+{
+	va_list args;
+	int n;
+
+	va_start(args, fmt);
+	n = vasprintf(strp, fmt, args);
+	va_end(args);
+
+	return n;
+}

src/closefrom.c

@@ -153,6 +153,9 @@ closefrom_procfs(int lowfd)
 		const char *errstr;
 		int fd;
 
+		if (dent->d_name[0] == '.')
+			continue;
+
 		fd = strtonum(dent->d_name, lowfd, INT_MAX, &errstr);
 		if (errstr != NULL || fd == dirfd(dirp))
 			continue;

src/err.c

@@ -1,6 +1,5 @@
 /*
- * Copyright © 2006 Robert Millan
- * Copyright © 2011, 2019 Guillem Jover <guillem@hadrons.org>
+ * Copyright © 2019 Guillem Jover <guillem@hadrons.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -26,58 +25,12 @@
  */
 
 #include <err.h>
-#ifdef LIBBSD_NEED_ERR_H_FUNCS
 #include <errno.h>
-#endif
 #include <string.h>
 #include <stdarg.h>
 #include <stdlib.h>
 #include <stdio.h>
 
-void
-vwarnc(int code, const char *format, va_list ap)
-{
-	fprintf(stderr, "%s: ", getprogname());
-	if (format) {
-		vfprintf(stderr, format, ap);
-		fprintf(stderr, ": ");
-	}
-	fprintf(stderr, "%s\n", strerror(code));
-}
-
-void
-warnc(int code, const char *format, ...)
-{
-	va_list ap;
-
-	va_start(ap, format);
-	vwarnc(code, format, ap);
-	va_end(ap);
-}
-
-void
-verrc(int status, int code, const char *format, va_list ap)
-{
-	fprintf(stderr, "%s: ", getprogname());
-	if (format) {
-		vfprintf(stderr, format, ap);
-		fprintf(stderr, ": ");
-	}
-	fprintf(stderr, "%s\n", strerror(code));
-	exit(status);
-}
-
-void
-errc(int status, int code, const char *format, ...)
-{
-	va_list ap;
-
-	va_start(ap, format);
-	verrc(status, code, format, ap);
-	va_end(ap);
-}
-
-#ifdef LIBBSD_NEED_ERR_H_FUNCS
 void
 vwarn(const char *format, va_list ap)
 {
@@ -148,4 +101,3 @@ errx(int eval, const char *format, ...)
 	verrx(eval, format, ap);
 	va_end(ap);
 }
-#endif

src/errc.c

@@ -0,0 +1,75 @@
+/*
+ * Copyright © 2006 Robert Millan
+ * Copyright © 2011, 2019 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 <err.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+void
+vwarnc(int code, const char *format, va_list ap)
+{
+	fprintf(stderr, "%s: ", getprogname());
+	if (format) {
+		vfprintf(stderr, format, ap);
+		fprintf(stderr, ": ");
+	}
+	fprintf(stderr, "%s\n", strerror(code));
+}
+
+void
+warnc(int code, const char *format, ...)
+{
+	va_list ap;
+
+	va_start(ap, format);
+	vwarnc(code, format, ap);
+	va_end(ap);
+}
+
+void
+verrc(int status, int code, const char *format, va_list ap)
+{
+	fprintf(stderr, "%s: ", getprogname());
+	if (format) {
+		vfprintf(stderr, format, ap);
+		fprintf(stderr, ": ");
+	}
+	fprintf(stderr, "%s\n", strerror(code));
+	exit(status);
+}
+
+void
+errc(int status, int code, const char *format, ...)
+{
+	va_list ap;
+
+	va_start(ap, format);
+	verrc(status, code, format, ap);
+	va_end(ap);
+}

src/libbsd-overlay.pc.in

@@ -9,4 +9,5 @@ Version: @VERSION@
 URL: https://libbsd.freedesktop.org/
 Libs: -L${libdir} -lbsd
 Libs.private: @LIBBSD_LIBS@ @MD5_LIBS@
+# We use -isystem instead of -I due the overlay via #include_next usage.
 Cflags: -isystem ${includedir}/bsd -DLIBBSD_OVERLAY

src/libbsd.map.in

@@ -1,43 +1,72 @@
+#include "config.h"
+
 LIBBSD_0.0 {
   global:
+#if LIBBSD_ABI_ARC4RANDOM
     arc4random;
+#endif
+#if LIBBSD_ABI_ARC4RANDOM_STIR
     arc4random_stir;
     arc4random_addrandom;
+#endif
 
+#if LIBBSD_ABI_BSD_GETOPT
     bsd_getopt;
     optreset;
+#endif
 
+#if LIBBSD_ABI_ERRC
     errc;
     warnc;
     verrc;
     vwarnc;
+#endif
 
+#if LIBBSD_ABI_FGETLN
     fgetln;
+#endif
+
+#if LIBBSD_ABI_FMTCHECK
     fmtcheck;
+#endif
+
+#if LIBBSD_ABI_SORT
     heapsort;
+#endif
+
+#if LIBBSD_ABI_HUMANIZE_NUMBER
     humanize_number;
+#endif
 
-    /* XXX: Already provided by glibc, remove. */
+#if LIBBSD_ABI_INET_NET_PTON
     inet_net_pton;
+#endif
 
+#if LIBBSD_ABI_PROGNAME
     getprogname;
     setprogname;
+#endif
 
+#if LIBBSD_ABI_STRL
     strlcpy;
     strlcat;
+#endif
 
+#if LIBBSD_ABI_ACCMODE
     setmode;
     getmode;
+#endif
 
+#if LIBBSD_ABI_VIS
     vis;
     strvis;
     strvisx;
     unvis;
     strunvis;
     strunvisx;
+#endif
 
-    /* The following functions are provided via the system libc or libmd
-     * implementations. */
+#if LIBBSD_ABI_MD5
     MD5Init;
     MD5Update;
     MD5Pad;
@@ -47,89 +76,138 @@ LIBBSD_0.0 {
     MD5File;
     MD5FileChunk;
     MD5Data;
+#endif
 
   local:
     *;
 };
 
 LIBBSD_0.1 {
+#if LIBBSD_ABI_STRMODE
     strmode;
+#endif
 
+#if LIBBSD_ABI_NLIST
     /* Private symbol, but libkvm uses it. */
     __fdnlist;
     nlist;
+#endif
 } LIBBSD_0.0;
 
 LIBBSD_0.2 {
+#if LIBBSD_ABI_STRTONUM
     strtonum;
+#endif
 
+#if LIBBSD_ABI_VIS
     strnvis;
     strnunvis;
+#endif
 
+#if LIBBSD_ABI_HUMANIZE_NUMBER
     dehumanize_number;
+#endif
 
+#if LIBBSD_ABI_READPASSPHRASE
     readpassphrase;
+#endif
 
+#if LIBBSD_ABI_FLOPEN
     flopen;
+#endif
 
+#if LIBBSD_ABI_PIDFILE
     pidfile_open;
     pidfile_write;
     pidfile_close;
     pidfile_remove;
+#endif
 
+#if LIBBSD_ABI_ARC4RANDOM
     arc4random_buf;
     arc4random_uniform;
+#endif
 } LIBBSD_0.1;
 
 LIBBSD_0.3 {
+#if LIBBSD_ABI_REALLOCF
     reallocf;
-    getpeereid;
+#endif
 
+#if LIBBSD_ABI_GETPEEREID
+    getpeereid;
+#endif
+
+#if LIBBSD_ABI_SORT
     mergesort;
     radixsort;
     sradixsort;
+#endif
 
+#if LIBBSD_ABI_FPURGE
     fpurge;
+#endif
 } LIBBSD_0.2;
 
 LIBBSD_0.4 {
+#if LIBBSD_ABI_CLOSEFROM
     closefrom;
+#endif
+
+#if LIBBSD_ABI_EXPAND_NUMBER
     expand_number;
+#endif
 } LIBBSD_0.3;
 
 LIBBSD_0.5 {
+#if LIBBSD_ABI_FGETLN
     fgetwln;
     fparseln;
+#endif
 
+#if LIBBSD_ABI_PROCTITLE
     /* Introduced in 0.2 as a stub, implemented in 0.5. */
     setproctitle;
+#endif
 
+#if LIBBSD_ABI_STRNSTR
     strnstr;
+#endif
 
+#if LIBBSD_ABI_WCSL
     wcslcat;
     wcslcpy;
+#endif
 } LIBBSD_0.4;
 
 LIBBSD_0.6 {
+#if LIBBSD_ABI_PROCTITLE
     /* Exported to cope with the constructor+dlopen+threads mess. */
     setproctitle_init;
+#endif
 } LIBBSD_0.5;
 
 LIBBSD_0.7 {
+#if LIBBSD_ABI_GETBSIZE
     getbsize;
+#endif
 
-    /* This symbol might not be present on some specific systems, such
-     * as musl based ones. It might need to be removed on SOVERSION bump,
-     * as it cannot be portabily implemented everywhere. */
+#if LIBBSD_ABI_FUNOPEN
     funopen;
+#endif
 
+#if LIBBSD_ABI_REALLOCARRAY
     reallocarray;
+#endif
 
+#if LIBBSD_ABI_STRINGLIST
     sl_init;
     sl_add;
     sl_free;
     sl_find;
+#endif
 
+#if LIBBSD_ABI_TIMECONV
     _time32_to_time;
     _time_to_time32;
     _time64_to_time;
@@ -138,20 +216,30 @@ LIBBSD_0.7 {
     _long_to_time;
     _time_to_int;
     _int_to_time;
+#endif
 } LIBBSD_0.6;
 
 LIBBSD_0.8 {
+#if LIBBSD_ABI_EXPLICIT_BZERO
     explicit_bzero;
+#endif
 } LIBBSD_0.7;
 
 LIBBSD_0.9 {
+#if LIBBSD_ABI_FLOPEN
     flopenat;
+#endif
 
+#if LIBBSD_ABI_PIDFILE
     pidfile_fileno;
+#endif
 
+#if LIBBSD_ABI_STRTOX
     strtoi;
     strtou;
+#endif
 
+#if LIBBSD_ABI_VIS
     nvis;
     snvis;
     stravis;
@@ -163,19 +251,21 @@ LIBBSD_0.9 {
     strsvis;
     strsvisx;
     svis;
+#endif
 } LIBBSD_0.8;
 
 LIBBSD_0.9.1 {
+#if LIBBSD_ABI_VIS
     /* The strnvis() and strnunvis() symbols changed prototype to match
      * the NetBSD implementation. Provided as versioned nodes in 0.9.1, and
      * exposed here explicitly so that we can redirect at compile-time. */
     strnvis_netbsd;
     strnunvis_netbsd;
+#endif
 } LIBBSD_0.9;
 
 LIBBSD_0.10.0 {
-    /* These BSD extensions are available on GNU systems, but not on other
-     * systems such as Windows or musl libc based ones. */
+#if LIBBSD_ABI_ERR
     vwarn;
     vwarnx;
     warn;
@@ -184,16 +274,46 @@ LIBBSD_0.10.0 {
     verrx;
     err;
     errx;
+#endif
 } LIBBSD_0.9.1;
 
 LIBBSD_0.11.0 {
+#if LIBBSD_ABI_VIS
     strnvisx;
+#endif
 
+#if LIBBSD_ABI_RECALLOCARRAY
     recallocarray;
-    freezero;
+#endif
 
+#if LIBBSD_ABI_FREEZERO
+    freezero;
+#endif
+
+#if LIBBSD_ABI_ID_FROM_NAME
     gid_from_group;
-    group_from_gid;
     uid_from_user;
+#endif
+#if LIBBSD_ABI_NAME_FROM_ID
     user_from_uid;
+    group_from_gid;
+#endif
 } LIBBSD_0.10.0;
+
+LIBBSD_0.12.0 {
+#if LIBBSD_ABI_ASPRINTF
+    vasprintf;
+    asprintf;
+#endif
+
+#if LIBBSD_ABI_TIMECONV && LIBBSD_ABI_TIME64
+    _time32_to_time_time64;
+    _time_to_time32_time64;
+    _time64_to_time_time64;
+    _time_to_time64_time64;
+    _time_to_long_time64;
+    _long_to_time_time64;
+    _time_to_int_time64;
+    _int_to_time_time64;
+#endif
+} LIBBSD_0.11.0;

src/local-link.h

@@ -38,47 +38,47 @@
 #endif
 
 #if defined(__APPLE__)
-#define libbsd_strong_alias(alias, symbol) \
+#define libbsd_strong_alias(symbol, alias) \
 	__asm__(".globl _" #alias); \
 	__asm__(".set _" #alias ", _" #symbol); \
 	extern __typeof(symbol) alias
 #elif !defined(_MSC_VER)
-#define libbsd_strong_alias(alias, symbol) \
+#define libbsd_strong_alias(symbol, alias) \
 	extern __typeof__(symbol) alias __attribute__((__alias__(#symbol)))
 #endif
 
-#ifdef __ELF__
+#if defined(__ELF__) && !defined(__sun)
 #  if __has_attribute(symver)
 /* The symver attribute is supported since gcc 10.x. */
-#define libbsd_symver_default(alias, symbol, version) \
+#define libbsd_symver_default(symbol, alias, version) \
 	extern __typeof__(symbol) symbol \
 		__attribute__((__symver__(#alias "@@" #version)))
-#define libbsd_symver_variant(alias, symbol, version) \
+#define libbsd_symver_variant(symbol, alias, version) \
 	extern __typeof__(symbol) symbol \
 		__attribute__((__symver__(#alias "@" #version)))
 
-#define libbsd_symver_weak(alias, symbol, version) \
+#define libbsd_symver_weak(symbol, alias, version) \
 	extern __typeof__(symbol) symbol \
 		__attribute__((__symver__(#alias "@" #version), __weak__))
 #  else
-#define libbsd_symver_default(alias, symbol, version) \
+#define libbsd_symver_default(symbol, alias, version) \
 	__asm__(".symver " #symbol "," #alias "@@" #version)
 
-#define libbsd_symver_variant(alias, symbol, version) \
+#define libbsd_symver_variant(symbol, alias, version) \
 	__asm__(".symver " #symbol "," #alias "@" #version)
 
-#define libbsd_symver_weak(alias, symbol, version) \
-	libbsd_symver_variant(alias, symbol, version); \
+#define libbsd_symver_weak(symbol, alias, version) \
+	libbsd_symver_variant(symbol, alias, version); \
 	extern __typeof__(symbol) alias \
 		__attribute__((__weak__))
 #  endif
 #else
-#define libbsd_symver_default(alias, symbol, version) \
-	libbsd_strong_alias(alias, symbol)
+#define libbsd_symver_default(symbol, alias, version) \
+	libbsd_strong_alias(symbol, alias)
 
-#define libbsd_symver_variant(alias, symbol, version)
+#define libbsd_symver_variant(symbol, alias, version)
 
-#define libbsd_symver_weak(alias, symbol, version)
+#define libbsd_symver_weak(symbol, alias, version)
 #endif
 
 #endif

src/md5.c

@@ -37,7 +37,7 @@ libbsd_MD5Init(MD5_CTX *context)
 libbsd_link_warning(MD5Init,
                     "The MD5Init() function in libbsd is a deprecated wrapper, "
                     "use libmd instead.");
-libbsd_symver_weak(MD5Init, libbsd_MD5Init, LIBBSD_0.0);
+libbsd_symver_weak(libbsd_MD5Init, MD5Init, LIBBSD_0.0);
 
 void
 libbsd_MD5Update(MD5_CTX *context, const uint8_t *data, size_t len)
@@ -47,7 +47,7 @@ libbsd_MD5Update(MD5_CTX *context, const uint8_t *data, size_t len)
 libbsd_link_warning(MD5Update,
                     "The MD5Update() function in libbsd is a deprecated wrapper, "
                     "use libmd instead.");
-libbsd_symver_weak(MD5Update, libbsd_MD5Update, LIBBSD_0.0);
+libbsd_symver_weak(libbsd_MD5Update, MD5Update, LIBBSD_0.0);
 
 void
 libbsd_MD5Pad(MD5_CTX *context)
@@ -57,7 +57,7 @@ libbsd_MD5Pad(MD5_CTX *context)
 libbsd_link_warning(MD5Pad,
                     "The MD5Pad() function in libbsd is a deprecated wrapper, "
                     "use libmd instead.");
-libbsd_symver_weak(MD5Pad, libbsd_MD5Pad, LIBBSD_0.0);
+libbsd_symver_weak(libbsd_MD5Pad, MD5Pad, LIBBSD_0.0);
 
 void
 libbsd_MD5Final(uint8_t digest[MD5_DIGEST_LENGTH], MD5_CTX *context)
@@ -67,7 +67,7 @@ libbsd_MD5Final(uint8_t digest[MD5_DIGEST_LENGTH], MD5_CTX *context)
 libbsd_link_warning(MD5Final,
                     "The MD5Final() function in libbsd is a deprecated wrapper, "
                     "use libmd instead.");
-libbsd_symver_weak(MD5Final, libbsd_MD5Final, LIBBSD_0.0);
+libbsd_symver_weak(libbsd_MD5Final, MD5Final, LIBBSD_0.0);
 
 void
 libbsd_MD5Transform(uint32_t state[4], const uint8_t block[MD5_BLOCK_LENGTH])
@@ -77,7 +77,7 @@ libbsd_MD5Transform(uint32_t state[4], const uint8_t block[MD5_BLOCK_LENGTH])
 libbsd_link_warning(MD5Transform,
                     "The MD5Transform() function in libbsd is a deprecated wrapper, "
                     "use libmd instead.");
-libbsd_symver_weak(MD5Transform, libbsd_MD5Transform, LIBBSD_0.0);
+libbsd_symver_weak(libbsd_MD5Transform, MD5Transform, LIBBSD_0.0);
 
 char *
 libbsd_MD5End(MD5_CTX *context, char *buf)
@@ -87,7 +87,7 @@ libbsd_MD5End(MD5_CTX *context, char *buf)
 libbsd_link_warning(MD5End,
                     "The MD5End() function in libbsd is a deprecated wrapper, "
                     "use libmd instead.");
-libbsd_symver_weak(MD5End, libbsd_MD5End, LIBBSD_0.0);
+libbsd_symver_weak(libbsd_MD5End, MD5End, LIBBSD_0.0);
 
 char *
 libbsd_MD5File(const char *filename, char *buf)
@@ -97,7 +97,7 @@ libbsd_MD5File(const char *filename, char *buf)
 libbsd_link_warning(MD5File,
                     "The MD5File() function in libbsd is a deprecated wrapper, "
                     "use libmd instead.");
-libbsd_symver_weak(MD5File, libbsd_MD5File, LIBBSD_0.0);
+libbsd_symver_weak(libbsd_MD5File, MD5File, LIBBSD_0.0);
 
 char *
 libbsd_MD5FileChunk(const char *filename, char *buf, off_t offset, off_t length)
@@ -107,7 +107,7 @@ libbsd_MD5FileChunk(const char *filename, char *buf, off_t offset, off_t length)
 libbsd_link_warning(MD5FileChunk,
                     "The MD5FileChunk() function in libbsd is a deprecated wrapper, "
                     "use libmd instead.");
-libbsd_symver_weak(MD5FileChunk, libbsd_MD5FileChunk, LIBBSD_0.0);
+libbsd_symver_weak(libbsd_MD5FileChunk, MD5FileChunk, LIBBSD_0.0);
 
 char *
 libbsd_MD5Data(const uint8_t *data, size_t len, char *buf)
@@ -117,4 +117,4 @@ libbsd_MD5Data(const uint8_t *data, size_t len, char *buf)
 libbsd_link_warning(MD5Data,
                     "The MD5Data() function in libbsd is a deprecated wrapper, "
                     "use libmd instead.");
-libbsd_symver_weak(MD5Data, libbsd_MD5Data, LIBBSD_0.0);
+libbsd_symver_weak(libbsd_MD5Data, MD5Data, LIBBSD_0.0);

src/setproctitle.c

@@ -289,17 +289,17 @@ setproctitle_impl(const char *fmt, ...)
 		*++nul = '\0';
 	}
 }
-libbsd_symver_default(setproctitle, setproctitle_impl, LIBBSD_0.5);
+libbsd_symver_default(setproctitle_impl, setproctitle, LIBBSD_0.5);
 
 /* The original function introduced in 0.2 was a stub, it only got implemented
  * in 0.5, make the implementation available in the old version as an alias
  * for code linking against that version, and change the default to use the
  * new version, so that new code depends on the implemented version. */
 #if defined(libbsd_strong_alias)
-libbsd_strong_alias(setproctitle_stub, setproctitle_impl);
+libbsd_strong_alias(setproctitle_impl, setproctitle_stub);
 #else
 void
 setproctitle_stub(const char *fmt, ...)
 	__attribute__((__alias__("setproctitle_impl")));
 #endif
-libbsd_symver_variant(setproctitle, setproctitle_stub, LIBBSD_0.2);
+libbsd_symver_variant(setproctitle_stub, setproctitle, LIBBSD_0.2);

src/strtoi.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: _strtoi.h,v 1.2 2015/01/18 17:55:22 christos Exp $	*/
+/*	$NetBSD: _strtoi.h,v 1.3 2024/01/20 16:13:39 christos Exp $	*/
 
 /*-
  * Copyright (c) 1990, 1993
@@ -32,7 +32,7 @@
  * NetBSD: src/lib/libc/locale/_wcstoul.h,v 1.2 2003/08/07 16:43:03 agc Exp
  *
  * Created by Kamil Rytarowski, based on ID:
- * NetBSD: src/common/lib/libc/stdlib/_strtoul.h,v 1.7 2013/05/17 12:55:56 joe…
+ * NetBSD: src/common/lib/libc/stdlib/_strtoul.h,v 1.7 2013/05/17 12:55:56 joerg Exp
  */
 
 #include <sys/cdefs.h>
@@ -73,25 +73,25 @@ strtoi(const char *__restrict nptr,
 	*rstatus = errno;
 	errno = serrno;
 
-	if (*rstatus == 0) {
-		/* No digits were found */
-		if (nptr == *endptr)
-			*rstatus = ECANCELED;
-		/* There are further characters after number */
-		else if (**endptr != '\0')
-			*rstatus = ENOTSUP;
-	}
+	/* No digits were found */
+	if (*rstatus == 0 && nptr == *endptr)
+		*rstatus = ECANCELED;
 
 	if (im < lo) {
 		if (*rstatus == 0)
 			*rstatus = ERANGE;
 		return lo;
 	}
+
 	if (im > hi) {
 		if (*rstatus == 0)
 			*rstatus = ERANGE;
 		return hi;
 	}
 
+	/* There are further characters after number */
+	if (*rstatus == 0 && **endptr != '\0')
+		*rstatus = ENOTSUP;
+
 	return im;
 }

src/strtonum.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: strtonum.c,v 1.5 2018/01/04 20:57:29 kamil Exp $	*/
+/*	$NetBSD: strtonum.c,v 1.7 2024/01/20 16:13:39 christos Exp $	*/
 /*-
  * Copyright (c) 2014 The NetBSD Foundation, Inc.
  * All rights reserved.
@@ -42,21 +42,34 @@ strtonum(const char *nptr, long long minval, long long maxval,
 	int e;
 	long long rv;
 	const char *resp;
+	char *eptr;
 
 	if (errstr == NULL)
 		errstr = &resp;
 
-	rv = (long long)strtoi(nptr, NULL, 10, minval, maxval, &e);
+	if (minval > maxval)
+		goto out;
 
-	if (e == 0) {
+	rv = (long long)strtoi(nptr, &eptr, 10, minval, maxval, &e);
+
+	switch (e) {
+	case 0:
 		*errstr = NULL;
 		return rv;
+	case ECANCELED:
+	case ENOTSUP:
+	case EINVAL:
+		goto out;
+	case ERANGE:
+		if (*eptr)
+			goto out;
+		*errstr = rv == maxval ? "too large" : "too small";
+		return 0;
+	default:
+		abort();
 	}
 
-	if (e == ERANGE)
-		*errstr = (rv == maxval ? "too large" : "too small");
-	else
-		*errstr = "invalid";
-
+out:
+	*errstr = "invalid";
 	return 0;
 }

src/strtou.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: _strtoi.h,v 1.2 2015/01/18 17:55:22 christos Exp $	*/
+/*	$NetBSD: _strtoi.h,v 1.3 2024/01/20 16:13:39 christos Exp $	*/
 
 /*-
  * Copyright (c) 1990, 1993
@@ -73,25 +73,25 @@ strtou(const char *__restrict nptr,
 	*rstatus = errno;
 	errno = serrno;
 
-	if (*rstatus == 0) {
-		/* No digits were found */
-		if (nptr == *endptr)
-			*rstatus = ECANCELED;
-		/* There are further characters after number */
-		else if (**endptr != '\0')
-			*rstatus = ENOTSUP;
-	}
+	/* No digits were found */
+	if (*rstatus == 0 && nptr == *endptr)
+		*rstatus = ECANCELED;
 
 	if (im < lo) {
 		if (*rstatus == 0)
 			*rstatus = ERANGE;
 		return lo;
 	}
+
 	if (im > hi) {
 		if (*rstatus == 0)
 			*rstatus = ERANGE;
 		return hi;
 	}
 
+	/* There are further characters after number */
+	if (*rstatus == 0 && **endptr != '\0')
+		*rstatus = ENOTSUP;
+
 	return im;
 }

src/timeconv.c

@@ -32,17 +32,55 @@
 
 #include <sys/cdefs.h>
 #include <sys/types.h>
-#include <timeconv.h>
+
+#include "local-link.h"
+
+#if LIBBSD_SYS_TIME_BITS == 64
+/*
+ * - enable time64 functions
+ * - symver libbsd<func>_time64 -> <func> 0.7
+ */
+#define time32_symbol(name)
+#define time64_symbol(name) \
+	libbsd_strong_alias(libbsd ## name ## _time64, name)
+#elif LIBBSD_SYS_TIME_BITS == 32 && LIBBSD_SYS_HAS_TIME64
+/*
+ * - enable time32 functions
+ * - enable time64 functions
+ * - symver libbsd<func>_time32 -> <func> 0.7
+ * - map libbsd<func>_time64 <func>_time64 0.12
+ */
+#define time32_symbol(name) \
+	libbsd_strong_alias(libbsd ## name ## _time32, name)
+#define time64_symbol(name) \
+	libbsd_strong_alias(libbsd ## name ## _time64, name ## _time64)
+#elif LIBBSD_SYS_TIME_BITS == 32 && !LIBBSD_SYS_HAS_TIME64
+/*
+ * - enable time32 functions
+ * - symver libbsd<func>_time32 -> <func>
+ */
+#define time32_symbol(name) \
+	libbsd_strong_alias(libbsd ## name ## _time32, name)
+#define time64_symbol(name)
+#else
+#error "Unknown time_t support"
+#endif
+
+#if LIBBSD_SYS_HAS_TIME64
+typedef int64_t libbsd_time64_t;
 
 /*
  * Convert a 32 bit representation of time_t into time_t.  XXX needs to
  * implement the 50-year rule to handle post-2038 conversions.
  */
-time_t
-_time32_to_time(int32_t t32)
+libbsd_time64_t
+libbsd_time32_to_time_time64(int32_t t32);
+libbsd_time64_t
+libbsd_time32_to_time_time64(int32_t t32)
 {
-    return((time_t)t32);
+    return((libbsd_time64_t)t32);
 }
+time64_symbol(_time32_to_time);
 
 /*
  * Convert time_t to a 32 bit representation.  If time_t is 64 bits we can
@@ -50,68 +88,196 @@ _time32_to_time(int32_t t32)
  * converted back to a temporally local 64 bit time_t using time32_to_time.
  */
 int32_t
-_time_to_time32(time_t t)
+libbsd_time_to_time32_time64(libbsd_time64_t t);
+int32_t
+libbsd_time_to_time32_time64(libbsd_time64_t t)
 {
     return((int32_t)t);
 }
+time64_symbol(_time_to_time32);
 
 /*
  * Convert a 64 bit representation of time_t into time_t.  If time_t is
  * represented as 32 bits we can simply chop it and not support times
  * past 2038.
  */
-time_t
-_time64_to_time(int64_t t64)
+libbsd_time64_t
+libbsd_time64_to_time_time64(int64_t t64);
+libbsd_time64_t
+libbsd_time64_to_time_time64(int64_t t64)
 {
-    return((time_t)t64);
+    return((libbsd_time64_t)t64);
 }
+time64_symbol(_time64_to_time);
 
 /*
  * Convert time_t to a 64 bit representation.  If time_t is represented
  * as 32 bits we simply sign-extend and do not support times past 2038.
  */
 int64_t
-_time_to_time64(time_t t)
+libbsd_time_to_time64_time64(libbsd_time64_t t);
+int64_t
+libbsd_time_to_time64_time64(libbsd_time64_t t)
 {
     return((int64_t)t);
 }
+time64_symbol(_time_to_time64);
 
 /*
  * Convert to/from 'long'.  Depending on the sizeof(long) this may or
  * may not require using the 50-year rule.
  */
 long
-_time_to_long(time_t t)
+libbsd_time_to_long_time64(libbsd_time64_t t);
+long
+libbsd_time_to_long_time64(libbsd_time64_t t)
 {
     if (sizeof(long) == sizeof(int64_t))
-	return(_time_to_time64(t));
+	return(libbsd_time_to_time64_time64(t));
     return((long)t);
 }
+time64_symbol(_time_to_long);
 
-time_t
-_long_to_time(long tlong)
+libbsd_time64_t
+libbsd_long_to_time_time64(long tlong);
+libbsd_time64_t
+libbsd_long_to_time_time64(long tlong)
 {
     if (sizeof(long) == sizeof(int32_t))
-	return(_time32_to_time(tlong));
-    return((time_t)tlong);
+	return(libbsd_time32_to_time_time64(tlong));
+    return((libbsd_time64_t)tlong);
 }
+time64_symbol(_long_to_time);
 
 /*
  * Convert to/from 'int'.  Depending on the sizeof(int) this may or
  * may not require using the 50-year rule.
  */
 int
-_time_to_int(time_t t)
+libbsd_time_to_int_time64(time_t t);
+int
+libbsd_time_to_int_time64(time_t t)
 {
     if (sizeof(int) == sizeof(int64_t))
-	return(_time_to_time64(t));
+	return(libbsd_time_to_time64_time64(t));
     return((int)t);
 }
+time64_symbol(_time_to_int);
 
-time_t
-_int_to_time(int tint)
+libbsd_time64_t
+libbsd_int_to_time_time64(int tint);
+libbsd_time64_t
+libbsd_int_to_time_time64(int tint)
 {
     if (sizeof(int) == sizeof(int32_t))
-	return(_time32_to_time(tint));
-    return((time_t)tint);
+	return(libbsd_time32_to_time_time64(tint));
+    return((libbsd_time64_t)tint);
 }
+time64_symbol(_int_to_time);
+#endif
+
+#if LIBBSD_SYS_TIME_BITS == 32
+typedef int32_t libbsd_time32_t;
+
+libbsd_time32_t
+libbsd_time32_to_time_time32(int32_t t32);
+libbsd_time32_t
+libbsd_time32_to_time_time32(int32_t t32)
+{
+    return((libbsd_time32_t)t32);
+}
+time32_symbol(_time32_to_time);
+
+/*
+ * Convert time_t to a 32 bit representation.  If time_t is 64 bits we can
+ * simply chop it down.   The resulting 32 bit representation can be
+ * converted back to a temporally local 64 bit time_t using time32_to_time.
+ */
+int32_t
+libbsd_time_to_time32_time32(libbsd_time32_t t);
+int32_t
+libbsd_time_to_time32_time32(libbsd_time32_t t)
+{
+    return((int32_t)t);
+}
+time32_symbol(_time_to_time32);
+
+/*
+ * Convert a 64 bit representation of time_t into time_t.  If time_t is
+ * represented as 32 bits we can simply chop it and not support times
+ * past 2038.
+ */
+libbsd_time32_t
+libbsd_time64_to_time_time32(int64_t t64);
+libbsd_time32_t
+libbsd_time64_to_time_time32(int64_t t64)
+{
+    return((libbsd_time32_t)t64);
+}
+time32_symbol(_time64_to_time);
+
+/*
+ * Convert time_t to a 64 bit representation.  If time_t is represented
+ * as 32 bits we simply sign-extend and do not support times past 2038.
+ */
+int64_t
+libbsd_time_to_time64_time32(libbsd_time32_t t);
+int64_t
+libbsd_time_to_time64_time32(libbsd_time32_t t)
+{
+    return((int64_t)t);
+}
+time32_symbol(_time_to_time64);
+
+/*
+ * Convert to/from 'long'.  Depending on the sizeof(long) this may or
+ * may not require using the 50-year rule.
+ */
+long
+libbsd_time_to_long_time32(libbsd_time32_t t);
+long
+libbsd_time_to_long_time32(libbsd_time32_t t)
+{
+    if (sizeof(long) == sizeof(int64_t))
+	return(libbsd_time_to_time64_time32(t));
+    return((long)t);
+}
+time32_symbol(_time_to_long);
+
+libbsd_time32_t
+libbsd_long_to_time_time32(long tlong);
+libbsd_time32_t
+libbsd_long_to_time_time32(long tlong)
+{
+    if (sizeof(long) == sizeof(int32_t))
+	return(libbsd_time32_to_time_time32(tlong));
+    return((libbsd_time32_t)tlong);
+}
+time32_symbol(_long_to_time);
+
+/*
+ * Convert to/from 'int'.  Depending on the sizeof(int) this may or
+ * may not require using the 50-year rule.
+ */
+int
+libbsd_time_to_int_time32(libbsd_time32_t t);
+int
+libbsd_time_to_int_time32(libbsd_time32_t t)
+{
+    if (sizeof(int) == sizeof(int64_t))
+	return(libbsd_time_to_time64_time32(t));
+    return((int)t);
+}
+time32_symbol(_time_to_int);
+
+libbsd_time32_t
+libbsd_int_to_time_time32(int tint);
+libbsd_time32_t
+libbsd_int_to_time_time32(int tint)
+{
+    if (sizeof(int) == sizeof(int32_t))
+	return(libbsd_time32_to_time_time32(tint));
+    return((libbsd_time32_t)tint);
+}
+time32_symbol(_int_to_time);
+#endif

src/unvis.c

@@ -554,7 +554,7 @@ strunvis(char *dst, const char *src)
  * existing one in OpenBSD and Freedesktop's libbsd (the former having existed
  * for over ten years). Despite this incompatibility being reported during
  * development (see http://gnats.netbsd.org/44977) they still shipped it.
- * Even more unfortunately FreeBSD and later MacOS picked up this incompatible
+ * Even more unfortunately FreeBSD and later macOS picked up this incompatible
  * implementation.
  *
  * Provide both implementations and default for now on the historical one to
@@ -570,7 +570,7 @@ strnunvis_openbsd(char *dst, const char *src, size_t dlen)
 {
 	return strnunvisx(dst, dlen, src, 0);
 }
-libbsd_symver_default(strnunvis, strnunvis_openbsd, LIBBSD_0.2);
+libbsd_symver_default(strnunvis_openbsd, strnunvis, LIBBSD_0.2);
 
 int
 strnunvis_netbsd(char *, size_t, const char *);
@@ -579,4 +579,4 @@ strnunvis_netbsd(char *dst, size_t dlen, const char *src)
 {
 	return strnunvisx(dst, dlen, src, 0);
 }
-libbsd_symver_variant(strnunvis, strnunvis_netbsd, LIBBSD_0.9.1);
+libbsd_symver_variant(strnunvis_netbsd, strnunvis, LIBBSD_0.9.1);

src/vasprintf.c

@@ -0,0 +1,64 @@
+/*
+ * Copyright © 2010-2024 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 <config.h>
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int
+vasprintf(char **strp, char const *fmt, va_list args)
+{
+	va_list args_copy;
+	int needed, n;
+	char *str;
+
+	va_copy(args_copy, args);
+	needed = vsnprintf(NULL, 0, fmt, args_copy);
+	va_end(args_copy);
+
+	if (needed < 0) {
+		*strp = NULL;
+		return -1;
+	}
+
+	str = malloc(needed + 1);
+	if (str == NULL) {
+		*strp = NULL;
+		return -1;
+	}
+
+	n = vsnprintf(str, needed + 1, fmt, args);
+	if (n < 0) {
+		free(str);
+		str = NULL;
+	}
+
+	*strp = str;
+
+	return n;
+}

src/vis.c

@@ -723,7 +723,7 @@ strvis(char *mbdst, const char *mbsrc, int flags)
  * existing one in OpenBSD and Freedesktop's libbsd (the former having existed
  * for over ten years). Despite this incompatibility being reported during
  * development (see http://gnats.netbsd.org/44977) they still shipped it.
- * Even more unfortunately FreeBSD and later MacOS picked up this incompatible
+ * Even more unfortunately FreeBSD and later macOS picked up this incompatible
  * implementation.
  *
  * Provide both implementations and default for now on the historical one to
@@ -739,7 +739,7 @@ strnvis_openbsd(char *mbdst, const char *mbsrc, size_t dlen, int flags)
 {
 	return istrsenvisxl(mbdst, &dlen, mbsrc, flags, "", NULL);
 }
-libbsd_symver_default(strnvis, strnvis_openbsd, LIBBSD_0.2);
+libbsd_symver_default(strnvis_openbsd, strnvis, LIBBSD_0.2);
 
 int
 strnvis_netbsd(char *, size_t, const char *, int);
@@ -748,7 +748,7 @@ strnvis_netbsd(char *mbdst, size_t dlen, const char *mbsrc, int flags)
 {
 	return istrsenvisxl(mbdst, &dlen, mbsrc, flags, "", NULL);
 }
-libbsd_symver_variant(strnvis, strnvis_netbsd, LIBBSD_0.9.1);
+libbsd_symver_variant(strnvis_netbsd, strnvis, LIBBSD_0.9.1);
 
 int
 stravis(char **mbdstp, const char *mbsrc, int flags)

test/.gitignore

@@ -22,5 +22,7 @@ strl
 strmode
 strnstr
 strtonum
+timeconv32
+timeconv64
 vis
 vis-openbsd

test/Makefile.am

@@ -33,78 +33,161 @@ check_SCRIPTS = \
 
 check_PROGRAMS = \
 	overlay \
-	bzero \
-	closefrom \
 	endian \
-	explicit_bzero \
-	humanize \
-	fgetln \
-	fparseln \
-	proctitle-init \
-	pwcache \
-	setmode \
-	strnstr \
-	strtonum \
-	vis \
-	vis-openbsd \
 	# EOL
 
-if NEED_PROGNAME
-check_PROGRAMS += progname
+if ABI_ACCMODE
+check_PROGRAMS += \
+	setmode \
+	# EOL
 endif
 
-if NEED_NLIST
-check_PROGRAMS += nlist
+if ABI_ARC4RANDOM
+if HAVE_LIBTESTU01
+check_PROGRAMS += arc4random
+
+arc4random_LDADD = $(LDADD) $(TESTU01_LIBS)
+endif
 endif
 
-if NEED_STRL
-check_PROGRAMS += strl
+if ABI_CLOSEFROM
+check_PROGRAMS += \
+	closefrom \
+	# EOL
 endif
 
-if NEED_STRMODE
-check_PROGRAMS += strmode
+if ABI_EXPLICIT_BZERO
+check_PROGRAMS += \
+	bzero \
+	explicit_bzero \
+	# EOL
 endif
 
-if NEED_FPURGE
+if ABI_FGETLN
+check_PROGRAMS += \
+	fgetln \
+	fparseln \
+	# EOL
+
+fgetln_SOURCES = \
+	test-stream.c \
+	test-stream.h \
+	fgetln.c \
+	# EOL
+
+fgetln_CFLAGS = -Wno-deprecated-declarations
+
+fparseln_SOURCES = \
+	test-stream.c \
+	test-stream.h \
+	fparseln.c \
+	# EOL
+endif
+
+if ABI_FPURGE
 check_PROGRAMS += fpurge
 endif
 
-if NEED_FUNOPEN
+if ABI_FUNOPEN
 check_PROGRAMS += funopen
 endif
 
-if NEED_ARC4RANDOM
-if HAVE_LIBTESTU01
-arc4random_LDADD = $(LDADD) $(TESTU01_LIBS)
-
-check_PROGRAMS += arc4random
-endif
-endif
-
-if BUILD_LIBBSD_CTOR
-proctitle_LDFLAGS = \
-	-Wl,-u,libbsd_init_func \
-	$(top_builddir)/src/libbsd-ctor.a \
-	$(top_builddir)/src/libbsd.la \
+if ABI_HUMANIZE_NUMBER
+check_PROGRAMS += \
+	humanize \
 	# EOL
-
-check_PROGRAMS += proctitle
 endif
 
-if NEED_MD5
+if ABI_FPURGE
+check_PROGRAMS += fpurge
+endif
+
+if ABI_FUNOPEN
+check_PROGRAMS += funopen
+endif
+
+if ABI_MD5
 check_PROGRAMS += md5
 
-if NEED_TRANSPARENT_LIBMD
+if ABI_TRANSPARENT_LIBMD
 # On the installed system this is handled via the ld script.
 md5_LDADD = $(LDADD) $(MD5_LIBS)
 endif
 endif
 
-fgetln_SOURCES = test-stream.c test-stream.h fgetln.c
-fgetln_CFLAGS = -Wno-deprecated-declarations
-fparseln_SOURCES = test-stream.c test-stream.h fparseln.c
+if ABI_NLIST
+check_PROGRAMS += nlist
+endif
+
+if ABI_PROGNAME
+check_PROGRAMS += progname
+endif
+
+if ABI_PROCTITLE
+check_PROGRAMS += \
+	proctitle-init \
+	# EOL
+
+proctitle_init_SOURCES = \
+	proctitle.c \
+	# EOL
 
-proctitle_init_SOURCES = proctitle.c
 proctitle_init_CPPFLAGS = $(AM_CPPFLAGS) -DTEST_USE_SETPROCTITLE_INIT=1
 
+if BUILD_LIBBSD_CTOR
+check_PROGRAMS += proctitle
+
+proctitle_LDFLAGS = \
+	-Wl,-u,libbsd_init_func \
+	$(top_builddir)/src/libbsd-ctor.a \
+	$(top_builddir)/src/libbsd.la \
+	# EOL
+endif
+endif
+
+if ABI_PWCACHE
+check_PROGRAMS += \
+	pwcache \
+	# EOL
+endif
+
+if ABI_PROGNAME
+check_PROGRAMS += progname
+endif
+
+if ABI_STRL
+check_PROGRAMS += strl
+endif
+
+if ABI_STRMODE
+check_PROGRAMS += strmode
+endif
+
+if ABI_STRNSTR
+check_PROGRAMS += \
+	strnstr \
+	# EOL
+endif
+
+if ABI_STRTONUM
+check_PROGRAMS += \
+	strtonum \
+	# EOL
+endif
+
+if ABI_VIS
+check_PROGRAMS += \
+	vis \
+	vis-openbsd \
+	# EOL
+endif
+
+if LIBBSD_SYS_IS_TIME32
+check_PROGRAMS += timeconv32
+endif
+
+if LIBBSD_SYS_HAS_TIME64
+check_PROGRAMS += timeconv64
+endif
+
 TESTS = $(check_SCRIPTS) $(check_PROGRAMS)

test/nlist.c

@@ -33,17 +33,29 @@
 #include <fcntl.h>
 #include <nlist.h>
 
+#if defined(__has_attribute)
+#if __has_attribute(__retain__)
+#define ATTRIBUTE_RETAIN __attribute__((__retain__))
+#else
+#define ATTRIBUTE_RETAIN
+#endif
+#endif
+
 static int data_prv_init = 50;
 extern int data_pub_init;
 extern int data_pub_uninit[2048];
 extern int *data_pub_ptr;
 
+/* GCC's __has_attribute has odd behavior for retain: https://gcc.gnu.org/PR99587 */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wattributes"
 int *data_pub_ptr = &data_prv_init;
-int data_pub_init __attribute__((__used__)) = 10;
-int data_pub_uninit[2048] __attribute__((__used__));
+int data_pub_init ATTRIBUTE_RETAIN __attribute__((__used__)) = 10;
+int data_pub_uninit[2048] ATTRIBUTE_RETAIN __attribute__((__used__));
 
 extern int
-func_pub(void) __attribute__((__used__)) ;
+func_pub(void) ATTRIBUTE_RETAIN __attribute__((__used__));
+#pragma GCC diagnostic pop
 
 int
 func_pub(void)

test/timeconv32.c

@@ -0,0 +1,43 @@
+/*
+ * Copyright © 2024 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.
+ */
+
+#undef _TIME_BITS
+
+#include <assert.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <timeconv.h>
+
+int
+main(int argc, char **argv)
+{
+	time_t t;
+
+	t = _time64_to_time(INT64_MAX);
+	assert(t < INT64_MAX);
+
+	return 0;
+}

test/timeconv64.c

@@ -0,0 +1,40 @@
+/*
+ * Copyright © 2024 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 <assert.h>
+#include <stdint.h>
+#include <timeconv.h>
+
+int
+main(int argc, char **argv)
+{
+	time_t t;
+
+	t = _time64_to_time(INT64_MAX);
+	assert(t == INT64_MAX);
+
+	return 0;
+}