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/*
* error.c: Error handling
*
* Written by: Stefan Frank
* Ullrich Hafner
*
* Credits: Modelled after variable argument routines from Jef
* Poskanzer's pbmplus package.
*
* Copyright (C) 1998 Ullrich Hafner <hafner@informatik.uni-wuerzburg.de>
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
*/
/*
* $Date: 1998/07/10 10:24:48 $
* $Author: hafner $
* $Revision: 1.4 $
* $State: Exp $
*/
#include "config.h"
#include <stdio.h>
#if STDC_HEADERS
# include <stdarg.h>
# define VA_START(args, lastarg) va_start(args, lastarg)
#else /* not STDC_HEADERS */
# include <varargs.h>
# define VA_START(args, lastarg) va_start(args)
#endif /* not STDC_HEADERS */
#include "misc.h"
#include "error.h"
/*******************************************************************************
global variables
*******************************************************************************/
int error_line = 0;
char *error_file = NULL;
enum verbosity verboselevel = SOMEVERBOSITY;
/*******************************************************************************
local variables
*******************************************************************************/
static char *executable = "(name not initialized)";
/*******************************************************************************
public code
*******************************************************************************/
void
init_error_handling (const char *name)
/*
* Initialize filename of executable.
*
* No return value.
*/
{
executable = strdup (name);
}
void
_error (const char *format, ...)
/*
* Print error message and exit.
*
* No return value.
*/
{
va_list args;
VA_START (args, format);
fprintf (stderr, "%s: %s: line %d:\nError: ",
executable, error_file, error_line);
#if HAVE_VPRINTF
vfprintf (stderr, format, args);
#elif HAVE_DOPRNT
_doprnt (format, args, stderr);
#endif /* HAVE_DOPRNT */
fputc ('\n', stderr);
va_end(args);
exit (1);
}
void
_file_error (const char *filename)
/*
* Print file error message and exit.
*
* No return value.
*/
{
fprintf (stderr, "%s: %s: line %d:\nError: ",
executable, error_file, error_line);
perror (filename);
exit (2);
}
void
_warning (const char *format, ...)
/*
* Issue a warning and continue execution.
*
* No return value.
*/
{
va_list args;
VA_START (args, format);
if (verboselevel == NOVERBOSITY)
return;
fprintf (stderr, "%s: %s: line %d:\nWarning: ",
executable, error_file, error_line);
#if HAVE_VPRINTF
vfprintf (stderr, format, args);
#elif HAVE_DOPRNT
_doprnt (format, args, stderr);
#endif /* HAVE_DOPRNT */
fputc ('\n', stderr);
va_end (args);
}
void
message (const char *format, ...)
/*
* Print a message to stderr.
*/
{
va_list args;
VA_START (args, format);
if (verboselevel == NOVERBOSITY)
return;
#if HAVE_VPRINTF
vfprintf (stderr, format, args);
#elif HAVE_DOPRNT
_doprnt (format, args, stderr);
#endif /* HAVE_DOPRNT */
fputc ('\n', stderr);
va_end (args);
}
void
debug_message (const char *format, ...)
/*
* Print a message to stderr.
*/
{
va_list args;
VA_START (args, format);
if (verboselevel < ULTIMATEVERBOSITY)
return;
fprintf (stderr, "*** ");
#if HAVE_VPRINTF
vfprintf (stderr, format, args);
#elif HAVE_DOPRNT
_doprnt (format, args, stderr);
#endif /* HAVE_DOPRNT */
fputc ('\n', stderr);
va_end (args);
}
void
info (const char *format, ...)
/*
* Print a message to stderr. Do not append a newline.
*/
{
va_list args;
VA_START (args, format);
if (verboselevel == NOVERBOSITY)
return;
#if HAVE_VPRINTF
vfprintf (stderr, format, args);
#elif HAVE_DOPRNT
_doprnt (format, args, stderr);
#endif /* HAVE_DOPRNT */
fflush (stderr);
va_end (args);
}
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