glibc/stdio-common/psignal.c

78 lines
2.2 KiB
C

/* Copyright (C) 1991, 1992, 1995, 1996, 1997, 2001, 2002, 2004
Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <stdio.h>
#include <signal.h>
#include <stdlib.h>
#include <libintl.h>
#include <wchar.h>
#ifndef HAVE_GNU_LD
#define _sys_siglist sys_siglist
#endif
/* Defined in sys_siglist.c. */
extern const char *const _sys_siglist[];
extern const char *const _sys_siglist_internal[] attribute_hidden;
/* Print out on stderr a line consisting of the test in S, a colon, a space,
a message describing the meaning of the signal number SIG and a newline.
If S is NULL or "", the colon and space are omitted. */
void
psignal (int sig, const char *s)
{
const char *colon, *desc;
if (s == NULL || s == '\0')
s = colon = "";
else
colon = ": ";
if (sig >= 0 && sig < NSIG && (desc = INTUSE(_sys_siglist)[sig]) != NULL)
{
if (_IO_fwide (stderr, 0) > 0)
(void) __fwprintf (stderr, L"%s%s%s\n", s, colon, _(desc));
else
(void) fprintf (stderr, "%s%s%s\n", s, colon, _(desc));
}
else
{
char *buf;
if (__asprintf (&buf, _("%s%sUnknown signal %d\n"), s, colon, sig) < 0)
{
if (_IO_fwide (stderr, 0) > 0)
(void) __fwprintf (stderr, L"%s%s%s\n", s, colon, _("Unknown signal"));
else
(void) fprintf (stderr, "%s%s%s\n", s, colon, _("Unknown signal"));
}
else
{
if (_IO_fwide (stderr, 0) > 0)
(void) __fwprintf (stderr, L"%s", buf);
else
(void) fputs (buf, stderr);
free (buf);
}
}
}