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/* Error handler for noninteractive utilities
Copyright (C) 1990-1998, 2000-2004, 2005 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. */
/* Written by David MacKenzie <djm@gnu.ai.mit.edu>. */
/* Adjusted slightly by Erik Andersen <andersen@uclibc.org> */
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <error.h>
libc_hidden_proto(strcmp)
libc_hidden_proto(strerror)
libc_hidden_proto(fprintf)
libc_hidden_proto(exit)
libc_hidden_proto(putc)
libc_hidden_proto(vfprintf)
libc_hidden_proto(fflush)
libc_hidden_proto(fputc)
libc_hidden_proto(__fputc_unlocked)
libc_hidden_proto(stdout)
libc_hidden_proto(stderr)
/* This variable is incremented each time `error' is called. */
libc_hidden_proto(error_message_count)
unsigned int error_message_count = 0;
libc_hidden_data_def(error_message_count)
/* Sometimes we want to have at most one error per line. This
variable controls whether this mode is selected or not. */
int error_one_per_line;
/* If NULL, error will flush stdout, then print on stderr the program
name, a colon and a space. Otherwise, error will call this
function without parameters instead. */
/* void (*error_print_progname) (void) = NULL; */
extern __typeof(error) __error attribute_hidden;
void __error (int status, int errnum, const char *message, ...)
{
va_list args;
fflush (stdout);
va_start (args, message);
vfprintf (stderr, message, args);
va_end (args);
++error_message_count;
if (errnum) {
fprintf (stderr, ": %s", strerror (errnum));
}
putc ('\n', stderr);
if (status)
exit (status);
}
extern __typeof(error_at_line) __error_at_line attribute_hidden;
void __error_at_line (int status, int errnum, const char *file_name,
unsigned int line_number, const char *message, ...)
{
va_list args;
if (error_one_per_line) {
static const char *old_file_name;
static unsigned int old_line_number;
if (old_line_number == line_number &&
(file_name == old_file_name || !strcmp (old_file_name, file_name)))
/* Simply return and print nothing. */
return;
old_file_name = file_name;
old_line_number = line_number;
}
fflush (stdout);
if (file_name != NULL)
fprintf (stderr, "%s:%d: ", file_name, line_number);
va_start (args, message);
vfprintf (stderr, message, args);
va_end (args);
++error_message_count;
if (errnum) {
fprintf (stderr, ": %s", strerror (errnum));
}
putc ('\n', stderr);
if (status)
exit (status);
}
/* psm: keep this weak, too many use this in common code */
weak_alias(__error,error)
strong_alias(__error_at_line,error_at_line)
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