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lprm.c revision 1.2 
      1 /*
      2  * Copyright (c) 1983 Regents of the University of California.
      3  * All rights reserved.
      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. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef lint
     35 char copyright[] =
     36 "@(#) Copyright (c) 1983 Regents of the University of California.\n\
     37  All rights reserved.\n";
     38 #endif /* not lint */
     39 
     40 #ifndef lint
     41 /*static char sccsid[] = "from: @(#)lprm.c	5.6 (Berkeley) 3/2/91";*/
     42 static char rcsid[] = "$Id: lprm.c,v 1.2 1993/08/01 17:58:36 mycroft Exp $";
     43 #endif /* not lint */
     44 
     45 /*
     46  * lprm - remove the current user's spool entry
     47  *
     48  * lprm [-] [[job #] [user] ...]
     49  *
     50  * Using information in the lock file, lprm will kill the
     51  * currently active daemon (if necessary), remove the associated files,
     52  * and startup a new daemon.  Priviledged users may remove anyone's spool
     53  * entries, otherwise one can only remove their own.
     54  */
     55 
     56 #include "lp.h"
     57 
     58 /*
     59  * Stuff for handling job specifications
     60  */
     61 char	*user[MAXUSERS];	/* users to process */
     62 int	users;			/* # of users in user array */
     63 int	requ[MAXREQUESTS];	/* job number of spool entries */
     64 int	requests;		/* # of spool requests */
     65 char	*person;		/* name of person doing lprm */
     66 
     67 static char	luser[16];	/* buffer for person */
     68 
     69 main(argc, argv)
     70 	int argc;
     71 	char *argv[];
     72 {
     73 	register char *arg;
     74 	struct passwd *p;
     75 	struct direct **files;
     76 	int nitems, assasinated = 0;
     77 
     78 	name = argv[0];
     79 	gethostname(host, sizeof(host));
     80 	openlog("lpd", 0, LOG_LPR);
     81 	if ((p = getpwuid(getuid())) == NULL)
     82 		fatal("Who are you?");
     83 	if (strlen(p->pw_name) >= sizeof(luser))
     84 		fatal("Your name is too long");
     85 	strcpy(luser, p->pw_name);
     86 	person = luser;
     87 	while (--argc) {
     88 		if ((arg = *++argv)[0] == '-')
     89 			switch (arg[1]) {
     90 			case 'P':
     91 				if (arg[2])
     92 					printer = &arg[2];
     93 				else if (argc > 1) {
     94 					argc--;
     95 					printer = *++argv;
     96 				}
     97 				break;
     98 			case '\0':
     99 				if (!users) {
    100 					users = -1;
    101 					break;
    102 				}
    103 			default:
    104 				usage();
    105 			}
    106 		else {
    107 			if (users < 0)
    108 				usage();
    109 			if (isdigit(arg[0])) {
    110 				if (requests >= MAXREQUESTS)
    111 					fatal("Too many requests");
    112 				requ[requests++] = atoi(arg);
    113 			} else {
    114 				if (users >= MAXUSERS)
    115 					fatal("Too many users");
    116 				user[users++] = arg;
    117 			}
    118 		}
    119 	}
    120 	if (printer == NULL && (printer = getenv("PRINTER")) == NULL)
    121 		printer = DEFLP;
    122 
    123 	rmjob();
    124 }
    125 
    126 usage()
    127 {
    128 	fprintf(stderr, "usage: lprm [-] [-Pprinter] [[job #] [user] ...]\n");
    129 	exit(2);
    130 }
    131