166 lines
4.6 KiB
C
166 lines
4.6 KiB
C
/*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1983, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)lprm.c 8.1 (Berkeley) 6/6/93";
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#endif
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static const char rcsid[] =
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"$Id: lprm.c,v 1.4 1997/12/02 20:46:15 wollman Exp $";
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#endif /* not lint */
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/*
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* lprm - remove the current user's spool entry
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*
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* lprm [-] [[job #] [user] ...]
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*
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* Using information in the lock file, lprm will kill the
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* currently active daemon (if necessary), remove the associated files,
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* and startup a new daemon. Priviledged users may remove anyone's spool
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* entries, otherwise one can only remove their own.
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*/
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#include <sys/param.h>
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#include <syslog.h>
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#include <dirent.h>
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#include <pwd.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include "lp.h"
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#include "lp.local.h"
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/*
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* Stuff for handling job specifications
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*/
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char *person; /* name of person doing lprm */
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int requ[MAXREQUESTS]; /* job number of spool entries */
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int requests; /* # of spool requests */
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char *user[MAXUSERS]; /* users to process */
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int users; /* # of users in user array */
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uid_t uid, euid; /* real and effective user id's */
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static char luser[16]; /* buffer for person */
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int main __P((int, char *[]));
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static void usage __P((void));
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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char *arg, *printer;
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struct passwd *p;
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static char root[] = "root";
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printer = NULL;
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uid = getuid();
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euid = geteuid();
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seteuid(uid); /* be safe */
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name = argv[0];
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gethostname(host, sizeof(host));
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openlog("lpd", 0, LOG_LPR);
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/*
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* Bogus code later checks for string equality between
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* `person' and "root", so if we are root, better make sure
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* that code will succeed.
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*/
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if (getuid() == 0) {
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person = root;
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} else if ((person = getlogin()) == NULL) {
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if ((p = getpwuid(getuid())) == NULL)
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fatal(0, "Who are you?");
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if (strlen(p->pw_name) >= sizeof(luser))
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fatal(0, "Your name is too long");
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strcpy(luser, p->pw_name);
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person = luser;
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}
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while (--argc) {
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if ((arg = *++argv)[0] == '-')
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switch (arg[1]) {
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case 'P':
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if (arg[2])
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printer = &arg[2];
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else if (argc > 1) {
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argc--;
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printer = *++argv;
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}
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break;
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case '\0':
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if (!users) {
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users = -1;
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break;
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}
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default:
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usage();
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}
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else {
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if (users < 0)
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usage();
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if (isdigit(arg[0])) {
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if (requests >= MAXREQUESTS)
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fatal(0, "Too many requests");
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requ[requests++] = atoi(arg);
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} else {
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if (users >= MAXUSERS)
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fatal(0, "Too many users");
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user[users++] = arg;
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}
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}
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}
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if (printer == NULL && (printer = getenv("PRINTER")) == NULL)
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printer = DEFLP;
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rmjob(printer);
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exit(0);
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}
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static void
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usage()
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{
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fprintf(stderr, "usage: lprm [-] [-Pprinter] [[job #] [user] ...]\n");
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exit(2);
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}
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