78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
|
/* va_list error handler for noninteractive utilities
|
||
|
|
Copyright (C) 2006-2007, 2009-2020 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
This program is free software: you can redistribute it and/or modify
|
||
|
|
it under the terms of the GNU General Public License as published by
|
||
|
|
the Free Software Foundation; either version 3 of the License, or
|
||
|
|
(at your option) any later version.
|
||
|
|
|
||
|
|
This program 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 General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License
|
||
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
/* Written by Eric Blake. */
|
||
|
|
|
||
|
|
#include <config.h>
|
||
|
|
|
||
|
|
#include "verror.h"
|
||
|
|
#include "xvasprintf.h"
|
||
|
|
|
||
|
|
#include <errno.h>
|
||
|
|
#include <stdarg.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
#if ENABLE_NLS
|
||
|
|
# include "gettext.h"
|
||
|
|
# define _(msgid) gettext (msgid)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef _
|
||
|
|
# define _(String) String
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Print a message with 'vfprintf (stderr, FORMAT, ARGS)';
|
||
|
|
if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
|
||
|
|
If STATUS is nonzero, terminate the program with 'exit (STATUS)'.
|
||
|
|
Use the globals error_print_progname and error_message_count similarly
|
||
|
|
to error(). */
|
||
|
|
void
|
||
|
|
verror (int status, int errnum, const char *format, va_list args)
|
||
|
|
{
|
||
|
|
verror_at_line (status, errnum, NULL, 0, format, args);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Print a message with 'vfprintf (stderr, FORMAT, ARGS)';
|
||
|
|
if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
|
||
|
|
If STATUS is nonzero, terminate the program with 'exit (STATUS)'.
|
||
|
|
If FNAME is not NULL, prepend the message with "FNAME:LINENO:".
|
||
|
|
Use the globals error_print_progname, error_message_count, and
|
||
|
|
error_one_per_line similarly to error_at_line(). */
|
||
|
|
void
|
||
|
|
verror_at_line (int status, int errnum, const char *file,
|
||
|
|
unsigned int line_number, const char *format, va_list args)
|
||
|
|
{
|
||
|
|
char *message = xvasprintf (format, args);
|
||
|
|
if (message)
|
||
|
|
{
|
||
|
|
/* Until https://sourceware.org/bugzilla/show_bug.cgi?id=2997 is fixed,
|
||
|
|
glibc violates GNU Coding Standards when the file argument to
|
||
|
|
error_at_line is NULL. */
|
||
|
|
if (file)
|
||
|
|
error_at_line (status, errnum, file, line_number, "%s", message);
|
||
|
|
else
|
||
|
|
error (status, errnum, "%s", message);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
/* EOVERFLOW, EINVAL, and EILSEQ from xvasprintf are signs of
|
||
|
|
serious programmer errors. */
|
||
|
|
error (0, errno, _("unable to display error message"));
|
||
|
|
abort ();
|
||
|
|
}
|
||
|
|
free (message);
|
||
|
|
}
|