+
−/* va_list error handler for noninteractive utilities
+
−   Copyright (C) 2006-2007, 2009-2013 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 <http://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
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−   to error().  */
+
−void
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−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
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−   error_one_per_line similarly to error_at_line().  */
+
−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)
+
−{
+
−  char *message = xvasprintf (format, args);
+
−  if (message)
+
−    {
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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.  */
+
−      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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−  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.  */
+
−      error (0, errno, _("unable to display error message"));
+
−      abort ();
+
−    }
+
−  free (message);
+
−}