[apple/system_cmds.git] / at.tproj / panic.c

/* 
 *  panic.c - terminate fast in case of error
 *  Copyright (C) 1993  Thomas Koenig
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. The name of the author(s) may not be used to endorse or promote
 *    products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/usr.bin/at/panic.c,v 1.17 2002/05/16 00:47:14 tjr Exp $");

/* System Headers */

#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

/* Local headers */

#include "panic.h"
#include "privs.h"
#include "at.h"

/* External variables */

/* Global functions */

void
panic(const char *a)
{
/* Something fatal has happened, print error message and exit.
 */
	if (fcreated) {
		PRIV_START
		unlink(atfile);
		PRIV_END
	}

	errx(EXIT_FAILURE, "%s", a);
}

void
perr(const char *a)
{
/* Some operating system error; print error message and exit.
 */
	int serrno = errno;

	if (fcreated) {
		PRIV_START
		unlink(atfile);
		PRIV_END
	}

	errno = serrno;
	err(EXIT_FAILURE, "%s", a);
}

void
usage(void)
{
	/* Print usage and exit. */
    fprintf(stderr, "usage: at [-q x] [-f file] [-m] time\n"
		    "       at -c job [job ...]\n"
		    "       at [-f file] -t [[CC]YY]MMDDhhmm[.SS]\n"
		    "       at -r job [job ...]\n"
		    "       at -l -q queuename\n"
		    "       at -l [job ...]\n"
		    "       atq [-q x] [-v]\n"
		    "       atrm job [job ...]\n"
		    "       batch [-f file] [-m]\n");
    exit(EXIT_FAILURE);
}
Commit	Line	Data
2fc1e207 A	1	/*
	2	* panic.c - terminate fast in case of error
	3	* Copyright (C) 1993 Thomas Koenig
1815bff5 A	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. The name of the author(s) may not be used to endorse or promote
	11	* products derived from this software without specific prior written
	12	* permission.
	13	*
	14	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
	15	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
	16	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
2fc1e207	17	* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
1815bff5 A	18	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	19	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	20	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	21	* THEORY OF LIABILITY, WETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	22	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	23	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	24	*/
	25
2fc1e207 A	26	#include <sys/cdefs.h>
	27	__FBSDID("$FreeBSD: src/usr.bin/at/panic.c,v 1.17 2002/05/16 00:47:14 tjr Exp $");
	28
1815bff5 A	29	/* System Headers */
1815bff5 A	30
2fc1e207	31	#include <err.h>
1815bff5 A	32	#include <errno.h>
	33	#include <stdio.h>
	34	#include <stdlib.h>
	35	#include <unistd.h>
	36
	37	/* Local headers */
	38
	39	#include "panic.h"
2fc1e207	40	#include "privs.h"
1815bff5 A	41	#include "at.h"
1815bff5 A	42
1815bff5 A	43	/* External variables */
	44
	45	/* Global functions */
	46
1815bff5	47	void
2fc1e207	48	panic(const char *a)
1815bff5 A	49	{
	50	/* Something fatal has happened, print error message and exit.
	51	*/
2fc1e207 A	52	if (fcreated) {
2fc1e207 A	53	PRIV_START
1815bff5	54	unlink(atfile);
2fc1e207 A	55	PRIV_END
2fc1e207 A	56	}
1815bff5	57
2fc1e207	58	errx(EXIT_FAILURE, "%s", a);
1815bff5 A	59	}
	60
	61	void
2fc1e207	62	perr(const char *a)
1815bff5 A	63	{
	64	/* Some operating system error; print error message and exit.
	65	*/
2fc1e207	66	int serrno = errno;
1815bff5	67
2fc1e207 A	68	if (fcreated) {
	69	PRIV_START
	70	unlink(atfile);
	71	PRIV_END
	72	}
83f6dbe8	73
2fc1e207 A	74	errno = serrno;
2fc1e207 A	75	err(EXIT_FAILURE, "%s", a);
1815bff5 A	76	}
	77
	78	void
	79	usage(void)
	80	{
2fc1e207 A	81	/* Print usage and exit. */
	82	fprintf(stderr, "usage: at [-q x] [-f file] [-m] time\n"
	83	" at -c job [job ...]\n"
	84	" at [-f file] -t [[CC]YY]MMDDhhmm[.SS]\n"
	85	" at -r job [job ...]\n"
	86	" at -l -q queuename\n"
	87	" at -l [job ...]\n"
	88	" atq [-q x] [-v]\n"
	89	" atrm job [job ...]\n"
	90	" batch [-f file] [-m]\n");
	91	exit(EXIT_FAILURE);
1815bff5	92	}