mirror of
https://https.git.savannah.gnu.org/git/gnulib.git
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Bruno Haible
79 lines
2.6 KiB
C
79 lines
2.6 KiB
C
/* va_list error handler for noninteractive utilities
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Copyright (C) 2006-2007 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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/* Written by Eric Blake. */
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#include <config.h>
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#include "verror.h"
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#include "xvasprintf.h"
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#include <errno.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#if ENABLE_NLS
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# include "gettext.h"
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# define _(msgid) gettext (msgid)
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#endif
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#ifndef _
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# define _(String) String
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#endif
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/* Print a message with `vfprintf (stderr, FORMAT, ARGS)';
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if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
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If STATUS is nonzero, terminate the program with `exit (STATUS)'.
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Use the globals error_print_progname and error_message_count similarly
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to error(). */
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void
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verror (int status, int errnum, const char *format, va_list args)
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{
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verror_at_line (status, errnum, NULL, 0, format, args);
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}
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/* Print a message with `vfprintf (stderr, FORMAT, ARGS)';
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if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
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If STATUS is nonzero, terminate the program with `exit (STATUS)'.
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If FNAME is not NULL, prepend the message with `FNAME:LINENO:'.
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Use the globals error_print_progname, error_message_count, and
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error_one_per_line similarly to error_at_line(). */
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void
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verror_at_line (int status, int errnum, const char *file,
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unsigned int line_number, const char *format, va_list args)
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{
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char *message = xvasprintf (format, args);
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if (message)
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{
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/* Until http://sourceware.org/bugzilla/show_bug.cgi?id=2997 is fixed,
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glibc violates GNU Coding Standards when the file argument to
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error_at_line is NULL. */
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if (file)
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error_at_line (status, errnum, file, line_number, "%s", message);
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else
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error (status, errnum, "%s", message);
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}
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else
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{
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/* EOVERFLOW, EINVAL, and EILSEQ from xvasprintf are signs of
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serious programmer errors. */
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error (0, errno, _("unable to display error message"));
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abort ();
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}
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free (message);
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}
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