assert/assert-perr.c

   1 /* Copyright (C) 1994, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 #include <assert.h>
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <sysdep.h>
  24 #include <libintl.h>
  25
  26
  27 extern const char *__assert_program_name; /* In assert.c.  */
  28
  29 #ifdef USE_IN_LIBIO
  30 # include <libio/iolibio.h>
  31 # define fflush(s) _IO_fflush (s)
  32 #endif
  33
  34 /* This function, when passed an error number, a filename, and a line
  35    number, prints a message on the standard error stream of the form:
  36         a.c:10: foobar: Unexpected error: Computer bought the farm
  37    It then aborts program execution via a call to `abort'.  */
  38
  39 #ifdef FATAL_PREPARE_INCLUDE
  40 # include FATAL_PREPARE_INCLUDE
  41 #endif
  42
  43 void
  44 __assert_perror_fail (int errnum,
  45                       const char *file, unsigned int line,
  46                       const char *function)
  47 {
  48   char errbuf[1024];
  49 #ifdef FATAL_PREPARE
  50   FATAL_PREPARE;
  51 #endif
  52
  53   /* Print the message.  */
  54   (void) fprintf (stderr, _("%s%s%s:%u: %s%sUnexpected error: %s.\n"),
  55                   __assert_program_name ? __assert_program_name : "",
  56                   __assert_program_name ? ": " : "",
  57                   file, line,
  58                   function ? function : "", function ? ": " : "",
  59                   __strerror_r (errnum, errbuf, sizeof errbuf));
  60   (void) fflush (stderr);
  61
  62   abort ();
  63 }