glibc/assert/assert-perr.c
Ulrich Drepper 383bd1c503 Update.
2001-12-06  Ulrich Drepper  <drepper@redhat.com>

	* libio/vasprintf.c (_IO_vasprintf): Free buffer on failure.
	* assert/assert.c: Check result of __asprintf call and don't use
	string if it failed.
	* assert/assert-perr.c: Likewise.
	* inet/rcmd.c: Likewise.
	* locale/programs/localedef.c (main): Check result of
	construct_output_path and exit if it failed.
	(construct_output_path): Check result of asprintf and mkdir calls and
	fail if they failed.
	* posix/getopt.c: Check result of __asprintf calls and fail if
	they failed.
	Patch by Dmitry V. Levin <ldv@alt-linux.org>.
2001-12-06 08:49:08 +00:00

84 lines
2.4 KiB
C

/* Copyright (C) 1994,1995,1996,1997,1998,2001 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 <assert.h>
#include <libintl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysdep.h>
#include <unistd.h>
extern const char *__progname;
#ifdef USE_IN_LIBIO
# include <wchar.h>
# include <libio/iolibio.h>
# define fflush(s) _IO_fflush (s)
#endif
/* This function, when passed an error number, a filename, and a line
number, prints a message on the standard error stream of the form:
a.c:10: foobar: Unexpected error: Computer bought the farm
It then aborts program execution via a call to `abort'. */
#ifdef FATAL_PREPARE_INCLUDE
# include FATAL_PREPARE_INCLUDE
#endif
void
__assert_perror_fail (int errnum,
const char *file, unsigned int line,
const char *function)
{
char errbuf[1024];
char *buf;
#ifdef FATAL_PREPARE
FATAL_PREPARE;
#endif
if (__asprintf (&buf, _("%s%s%s:%u: %s%sUnexpected error: %s.\n"),
__progname, __progname[0] ? ": " : "",
file, line,
function ? function : "", function ? ": " : "",
__strerror_r (errnum, errbuf, sizeof errbuf)) >= 0)
{
/* Print the message. */
#ifdef USE_IN_LIBIO
if (_IO_fwide (stderr, 0) > 0)
(void) __fwprintf (stderr, L"%s", buf);
else
#endif
(void) fputs (buf, stderr);
(void) fflush (stderr);
/* We have to free the buffer since the appplication might catch the
SIGABRT. */
free (buf);
}
else
/* At least print a minimal message. */
#define STR_N_LEN(str) str, sizeof (str) - 1
__libc_write (STDERR_FILENO, STR_N_LEN ("Unexpected error.\n"));
abort ();
}