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/*
* panic.c - terminate fast in case of error
* Copyright (C) 1993 Thomas Koenig
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
/* System Headers */
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_STDARG_H
#include <stdarg.h>
#endif
/* Local headers */
#include "panic.h"
#include "privs.h"
#include "at.h"
/* File scope variables */
/* External variables */
/* Global functions */
void
panic(char *a)
{
/* Something fatal has happened, print error message and exit.
*/
fprintf(stderr, "%s: %s\n", namep, a);
if (fcreated) {
setregid(real_gid, effective_gid);
unlink(atfile);
setregid(effective_gid, real_gid);
}
exit(EXIT_FAILURE);
}
void
perr(const char *fmt,...)
{
/* Some operating system error; print error message and exit.
*/
char buf[1024];
va_list args;
va_start(args, fmt);
vsnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
perror(buf);
if (fcreated) {
setregid(real_gid, effective_gid);
unlink(atfile);
setregid(effective_gid, real_gid);
}
exit(EXIT_FAILURE);
}
void
usage(void)
{
/* Print usage and exit.
*/
fprintf(stderr, "Usage: at [-V] [-q x] [-f file] [-mMlbv] timespec ...\n"
" at [-V] [-q x] [-f file] [-mMlbv] -t time\n"
" at -c job ...\n"
" atq [-V] [-q x]\n"
" at [ -rd ] job ...\n"
" atrm [-V] job ...\n"
" batch\n");
exit(EXIT_FAILURE);
}
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