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lprm.c revision 1.1 
      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[] = "@(#)lprm.c	5.6 (Berkeley) 3/2/91";
     42 #endif /* not lint */
     43 
     44 /*
     45  * lprm - remove the current user's spool entry
     46  *
     47  * lprm [-] [[job #] [user] ...]
     48  *
     49  * Using information in the lock file, lprm will kill the
     50  * currently active daemon (if necessary), remove the associated files,
     51  * and startup a new daemon.  Priviledged users may remove anyone's spool
     52  * entries, otherwise one can only remove their own.
     53  */
     54 
     55 #include "lp.h"
     56 
     57 /*
     58  * Stuff for handling job specifications
     59  */
     60 char	*user[MAXUSERS];	/* users to process */
     61 int	users;			/* # of users in user array */
     62 int	requ[MAXREQUESTS];	/* job number of spool entries */
     63 int	requests;		/* # of spool requests */
     64 char	*person;		/* name of person doing lprm */
     65 
     66 static char	luser[16];	/* buffer for person */
     67 
     68 main(argc, argv)
     69 	int argc;
     70 	char *argv[];
     71 {
     72 	register char *arg;
     73 	struct passwd *p;
     74 	struct direct **files;
     75 	int nitems, assasinated = 0;
     76 
     77 	name = argv[0];
     78 	gethostname(host, sizeof(host));
     79 	openlog("lpd", 0, LOG_LPR);
     80 	if ((p = getpwuid(getuid())) == NULL)
     81 		fatal("Who are you?");
     82 	if (strlen(p->pw_name) >= sizeof(luser))
     83 		fatal("Your name is too long");
     84 	strcpy(luser, p->pw_name);
     85 	person = luser;
     86 	while (--argc) {
     87 		if ((arg = *++argv)[0] == '-')
     88 			switch (arg[1]) {
     89 			case 'P':
     90 				if (arg[2])
     91 					printer = &arg[2];
     92 				else if (argc > 1) {
     93 					argc--;
     94 					printer = *++argv;
     95 				}
     96 				break;
     97 			case '\0':
     98 				if (!users) {
     99 					users = -1;
    100 					break;
    101 				}
    102 			default:
    103 				usage();
    104 			}
    105 		else {
    106 			if (users < 0)
    107 				usage();
    108 			if (isdigit(arg[0])) {
    109 				if (requests >= MAXREQUESTS)
    110 					fatal("Too many requests");
    111 				requ[requests++] = atoi(arg);
    112 			} else {
    113 				if (users >= MAXUSERS)
    114 					fatal("Too many users");
    115 				user[users++] = arg;
    116 			}
    117 		}
    118 	}
    119 	if (printer == NULL && (printer = getenv("PRINTER")) == NULL)
    120 		printer = DEFLP;
    121 
    122 	rmjob();
    123 }
    124 
    125 usage()
    126 {
    127 	fprintf(stderr, "usage: lprm [-] [-Pprinter] [[job #] [user] ...]\n");
    128 	exit(2);
    129 }
    130