18a16b7a1SPedro F. Giffuni /*-
28a16b7a1SPedro F. Giffuni * SPDX-License-Identifier: BSD-3-Clause
38a16b7a1SPedro F. Giffuni *
4dea673e9SRodney W. Grimes * Copyright (c) 1983, 1993
5dea673e9SRodney W. Grimes * The Regents of the University of California. All rights reserved.
6dea673e9SRodney W. Grimes *
7dea673e9SRodney W. Grimes *
8dea673e9SRodney W. Grimes * Redistribution and use in source and binary forms, with or without
9dea673e9SRodney W. Grimes * modification, are permitted provided that the following conditions
10dea673e9SRodney W. Grimes * are met:
11dea673e9SRodney W. Grimes * 1. Redistributions of source code must retain the above copyright
12dea673e9SRodney W. Grimes * notice, this list of conditions and the following disclaimer.
13dea673e9SRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright
14dea673e9SRodney W. Grimes * notice, this list of conditions and the following disclaimer in the
15dea673e9SRodney W. Grimes * documentation and/or other materials provided with the distribution.
16fbbd9655SWarner Losh * 3. Neither the name of the University nor the names of its contributors
17dea673e9SRodney W. Grimes * may be used to endorse or promote products derived from this software
18dea673e9SRodney W. Grimes * without specific prior written permission.
19dea673e9SRodney W. Grimes *
20dea673e9SRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21dea673e9SRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22dea673e9SRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23dea673e9SRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24dea673e9SRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25dea673e9SRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26dea673e9SRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27dea673e9SRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28dea673e9SRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29dea673e9SRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30dea673e9SRodney W. Grimes * SUCH DAMAGE.
31dea673e9SRodney W. Grimes */
32dea673e9SRodney W. Grimes
338e36ed92SGarance A Drosehn #include "lp.cdefs.h" /* A cross-platform version of <sys/cdefs.h> */
34dea673e9SRodney W. Grimes /*
35dea673e9SRodney W. Grimes * lprm - remove the current user's spool entry
36dea673e9SRodney W. Grimes *
37dea673e9SRodney W. Grimes * lprm [-] [[job #] [user] ...]
38dea673e9SRodney W. Grimes *
39dea673e9SRodney W. Grimes * Using information in the lock file, lprm will kill the
40dea673e9SRodney W. Grimes * currently active daemon (if necessary), remove the associated files,
41dea673e9SRodney W. Grimes * and startup a new daemon. Priviledged users may remove anyone's spool
42dea673e9SRodney W. Grimes * entries, otherwise one can only remove their own.
43dea673e9SRodney W. Grimes */
44dea673e9SRodney W. Grimes
45dea673e9SRodney W. Grimes #include <sys/param.h>
46dea673e9SRodney W. Grimes
47dea673e9SRodney W. Grimes #include <syslog.h>
48dea673e9SRodney W. Grimes #include <dirent.h>
491d1d4a47SEitan Adler #include <err.h>
50dea673e9SRodney W. Grimes #include <pwd.h>
51dea673e9SRodney W. Grimes #include <unistd.h>
52dea673e9SRodney W. Grimes #include <stdlib.h>
53dea673e9SRodney W. Grimes #include <stdio.h>
54dea673e9SRodney W. Grimes #include <string.h>
55dea673e9SRodney W. Grimes #include <ctype.h>
56dea673e9SRodney W. Grimes #include "lp.h"
57dea673e9SRodney W. Grimes #include "lp.local.h"
58dea673e9SRodney W. Grimes
59dea673e9SRodney W. Grimes /*
60dea673e9SRodney W. Grimes * Stuff for handling job specifications
61dea673e9SRodney W. Grimes */
62dea673e9SRodney W. Grimes char *person; /* name of person doing lprm */
63dea673e9SRodney W. Grimes int requ[MAXREQUESTS]; /* job number of spool entries */
64dea673e9SRodney W. Grimes int requests; /* # of spool requests */
65dea673e9SRodney W. Grimes char *user[MAXUSERS]; /* users to process */
66dea673e9SRodney W. Grimes int users; /* # of users in user array */
67360d4ad5SWarner Losh uid_t uid, euid; /* real and effective user id's */
68dea673e9SRodney W. Grimes
69dea673e9SRodney W. Grimes static char luser[16]; /* buffer for person */
70dea673e9SRodney W. Grimes
71ba7a1ad7SGarance A Drosehn int main(int argc, char *_argv[]);
72ba7a1ad7SGarance A Drosehn static void usage(void);
73dea673e9SRodney W. Grimes
74dea673e9SRodney W. Grimes int
main(int argc,char * argv[])75ba7a1ad7SGarance A Drosehn main(int argc, char *argv[])
76dea673e9SRodney W. Grimes {
77ba7a1ad7SGarance A Drosehn char *arg;
78ba7a1ad7SGarance A Drosehn const char *printer;
79dea673e9SRodney W. Grimes struct passwd *p;
804a1a0dbeSGarrett Wollman static char root[] = "root";
81dea673e9SRodney W. Grimes
824a1a0dbeSGarrett Wollman printer = NULL;
83360d4ad5SWarner Losh uid = getuid();
84360d4ad5SWarner Losh euid = geteuid();
851d1d4a47SEitan Adler PRIV_END /* be safe */
8631058a75SGarance A Drosehn progname = argv[0];
87cc3fd56fSGarance A Drosehn gethostname(local_host, sizeof(local_host));
88dea673e9SRodney W. Grimes openlog("lpd", 0, LOG_LPR);
894a1a0dbeSGarrett Wollman
904a1a0dbeSGarrett Wollman /*
914a1a0dbeSGarrett Wollman * Bogus code later checks for string equality between
924a1a0dbeSGarrett Wollman * `person' and "root", so if we are root, better make sure
934a1a0dbeSGarrett Wollman * that code will succeed.
944a1a0dbeSGarrett Wollman */
954a1a0dbeSGarrett Wollman if (getuid() == 0) {
964a1a0dbeSGarrett Wollman person = root;
974a1a0dbeSGarrett Wollman } else if ((person = getlogin()) == NULL) {
98dea673e9SRodney W. Grimes if ((p = getpwuid(getuid())) == NULL)
994a1a0dbeSGarrett Wollman fatal(0, "Who are you?");
100dea673e9SRodney W. Grimes if (strlen(p->pw_name) >= sizeof(luser))
1014a1a0dbeSGarrett Wollman fatal(0, "Your name is too long");
102dea673e9SRodney W. Grimes strcpy(luser, p->pw_name);
103dea673e9SRodney W. Grimes person = luser;
1044a1a0dbeSGarrett Wollman }
105dea673e9SRodney W. Grimes while (--argc) {
106dea673e9SRodney W. Grimes if ((arg = *++argv)[0] == '-')
107dea673e9SRodney W. Grimes switch (arg[1]) {
108dea673e9SRodney W. Grimes case 'P':
109dea673e9SRodney W. Grimes if (arg[2])
110dea673e9SRodney W. Grimes printer = &arg[2];
111dea673e9SRodney W. Grimes else if (argc > 1) {
112dea673e9SRodney W. Grimes argc--;
113dea673e9SRodney W. Grimes printer = *++argv;
114dea673e9SRodney W. Grimes }
115dea673e9SRodney W. Grimes break;
116dea673e9SRodney W. Grimes case '\0':
117dea673e9SRodney W. Grimes if (!users) {
118dea673e9SRodney W. Grimes users = -1;
119dea673e9SRodney W. Grimes break;
120dea673e9SRodney W. Grimes }
121dea673e9SRodney W. Grimes default:
122dea673e9SRodney W. Grimes usage();
123dea673e9SRodney W. Grimes }
124dea673e9SRodney W. Grimes else {
125dea673e9SRodney W. Grimes if (users < 0)
126dea673e9SRodney W. Grimes usage();
127dea673e9SRodney W. Grimes if (isdigit(arg[0])) {
128dea673e9SRodney W. Grimes if (requests >= MAXREQUESTS)
1294a1a0dbeSGarrett Wollman fatal(0, "Too many requests");
130dea673e9SRodney W. Grimes requ[requests++] = atoi(arg);
131dea673e9SRodney W. Grimes } else {
132dea673e9SRodney W. Grimes if (users >= MAXUSERS)
1334a1a0dbeSGarrett Wollman fatal(0, "Too many users");
134dea673e9SRodney W. Grimes user[users++] = arg;
135dea673e9SRodney W. Grimes }
136dea673e9SRodney W. Grimes }
137dea673e9SRodney W. Grimes }
138dea673e9SRodney W. Grimes if (printer == NULL && (printer = getenv("PRINTER")) == NULL)
139dea673e9SRodney W. Grimes printer = DEFLP;
140dea673e9SRodney W. Grimes
1414a1a0dbeSGarrett Wollman rmjob(printer);
142dea673e9SRodney W. Grimes exit(0);
143dea673e9SRodney W. Grimes }
144dea673e9SRodney W. Grimes
1459b3fe531SPhilippe Charnier static void
usage(void)146ba7a1ad7SGarance A Drosehn usage(void)
147dea673e9SRodney W. Grimes {
148dea673e9SRodney W. Grimes fprintf(stderr, "usage: lprm [-] [-Pprinter] [[job #] [user] ...]\n");
149dea673e9SRodney W. Grimes exit(2);
150dea673e9SRodney W. Grimes }
151