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Make strerror(3) and strsignal(3) thread-safe, and add psignal(3) and psiginfo(3).

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Change-Id: I426109db25e907980d6cb3a7a695796e45783b78
This commit is contained in:
Irina Tirdea
2012-09-08 09:17:54 +03:00
committed by Elliott Hughes
parent 4a9b7c694a
commit b5f053b5a7
11 changed files with 368 additions and 185 deletions
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85
libc/upstream-netbsd/libc/gen/psignal.c Normal file
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/* $NetBSD: psignal.c,v 1.23 2012/03/13 21:13:36 christos Exp $ */
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char sccsid[] = "@(#)psignal.c 8.1 (Berkeley) 6/4/93";
#else
__RCSID("$NetBSD: psignal.c,v 1.23 2012/03/13 21:13:36 christos Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
#include "namespace.h"
#include <sys/types.h>
#include <sys/uio.h>
#include <limits.h>
#include <signal.h>
#include <string.h>
#include <unistd.h>
#include "extern.h"
#ifdef __weak_alias
__weak_alias(psignal,_psignal)
#endif
void
psignal(int sig, const char *s)
{
struct iovec *v;
struct iovec iov[4];
char buf[NL_TEXTMAX];
v = iov;
if (s && *s) {
v->iov_base = __UNCONST(s);
v->iov_len = strlen(s);
v++;
v->iov_base = __UNCONST(": ");
v->iov_len = 2;
v++;
}
v->iov_base = __UNCONST(__strsignal((int)sig, buf, sizeof(buf)));
v->iov_len = strlen(v->iov_base);
v++;
v->iov_base = __UNCONST("\n");
v->iov_len = 1;
(void)writev(STDERR_FILENO, iov, (int)((v - iov) + 1));
}
void
psiginfo(const siginfo_t *si, const char *s)
{
psignal(si->si_signo, s);
}