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panic.c revision 1.2 
      1 /*	$NetBSD: panic.c,v 1.2 1995/03/25 18:13:33 glass Exp $	*/
      2 
      3 /*
      4  * panic.c - terminate fast in case of error
      5  * Copyright (c) 1993 by Thomas Koenig
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. The name of the author(s) may not be used to endorse or promote
     14  *    products derived from this software without specific prior written
     15  *    permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 /* System Headers */
     30 
     31 #include <errno.h>
     32 #include <stdio.h>
     33 #include <stdlib.h>
     34 #include <unistd.h>
     35 
     36 /* Local headers */
     37 
     38 #include "panic.h"
     39 #include "at.h"
     40 
     41 /* File scope variables */
     42 
     43 #ifndef lint
     44 static char rcsid[] = "$NetBSD: panic.c,v 1.2 1995/03/25 18:13:33 glass Exp $";
     45 #endif
     46 
     47 /* External variables */
     48 
     49 /* Global functions */
     50 
     51 void
     52 panic(a)
     53 	char *a;
     54 {
     55 /* Something fatal has happened, print error message and exit.
     56  */
     57 	fprintf(stderr, "%s: %s\n", namep, a);
     58 	if (fcreated)
     59 		unlink(atfile);
     60 
     61 	exit(EXIT_FAILURE);
     62 }
     63 
     64 void
     65 perr(a)
     66 	char *a;
     67 {
     68 /* Some operating system error; print error message and exit.
     69  */
     70 	perror(a);
     71 	if (fcreated)
     72 		unlink(atfile);
     73 
     74 	exit(EXIT_FAILURE);
     75 }
     76 
     77 void
     78 perr2(a, b)
     79 	char *a, *b;
     80 {
     81 	fprintf(stderr, "%s", a);
     82 	perr(b);
     83 }
     84 
     85 void
     86 usage(void)
     87 {
     88 /* Print usage and exit.
     89 */
     90 	fprintf(stderr, "Usage: at [-q x] [-f file] [-m] time\n"
     91 	    "       atq [-q x] [-v]\n"
     92 	    "       atrm [-q x] job ...\n"
     93 	    "       batch [-f file] [-m]\n");
     94 	exit(EXIT_FAILURE);
     95 }
     96