1 /* $OpenBSD: lpq.c,v 1.25 2022/12/28 21:30:17 jmc Exp $ */
2 /* $NetBSD: lpq.c,v 1.9 1999/12/07 14:54:47 mrg Exp $ */
3
4 /*
5 * Copyright (c) 1983, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. 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 /*
35 * Spool Queue examination program
36 *
37 * lpq [-a] [-l] [-Pprinter] [user...] [job...]
38 *
39 * -a show all non-null queues on the local machine
40 * -l long output
41 * -P used to identify printer as per lpr/lprm
42 */
43
44
45 #include <ctype.h>
46 #include <signal.h>
47 #include <dirent.h>
48 #include <err.h>
49 #include <errno.h>
50 #include <unistd.h>
51 #include <stdlib.h>
52 #include <stdio.h>
53 #include <limits.h>
54 #include <syslog.h>
55
56 #include "lp.h"
57 #include "lp.local.h"
58 #include "pathnames.h"
59
60 int requ[MAXREQUESTS]; /* job number of spool entries */
61 int requests; /* # of spool requests */
62 char *user[MAXUSERS]; /* users to process */
63 int users; /* # of users in user array */
64
65 volatile sig_atomic_t gotintr;
66
67 static __dead void usage(void);
68
69 int
main(int argc,char ** argv)70 main(int argc, char **argv)
71 {
72 int ch, aflag, lflag;
73 char *buf, *cp;
74 long l;
75
76 effective_uid = geteuid();
77 real_uid = getuid();
78 effective_gid = getegid();
79 real_gid = getgid();
80 PRIV_END; /* be safe */
81
82 if (gethostname(host, sizeof(host)) != 0)
83 err(1, "gethostname");
84 openlog("lpq", 0, LOG_LPR);
85
86 aflag = lflag = 0;
87 while ((ch = getopt(argc, argv, "alP:w:")) != -1) {
88 switch(ch) {
89 case 'a':
90 aflag = 1;
91 break;
92 case 'l': /* long output */
93 lflag = 1;
94 break;
95 case 'P': /* printer name */
96 printer = optarg;
97 break;
98 case 'w':
99 l = strtol(optarg, &cp, 10);
100 if (*cp != '\0' || l < 0 || l >= INT_MAX)
101 errx(1, "wait time must be positive integer: %s",
102 optarg);
103 wait_time = (u_int)l;
104 if (wait_time < 30)
105 warnx("warning: wait time less than 30 seconds");
106 break;
107 default:
108 usage();
109 }
110 }
111
112 if (!aflag && printer == NULL && (printer = getenv("PRINTER")) == NULL)
113 printer = DEFLP;
114
115 for (argc -= optind, argv += optind; argc; --argc, ++argv)
116 if (isdigit((unsigned char)argv[0][0])) {
117 if (requests >= MAXREQUESTS)
118 fatal("too many requests");
119 requ[requests++] = atoi(*argv);
120 }
121 else {
122 if (users >= MAXUSERS)
123 fatal("too many users");
124 user[users++] = *argv;
125 }
126
127 if (aflag) {
128 while (cgetnext(&buf, printcapdb) > 0) {
129 if (ckqueue(buf) <= 0) {
130 free(buf);
131 continue; /* no jobs */
132 }
133 for (cp = buf; *cp; cp++)
134 if (*cp == '|' || *cp == ':') {
135 *cp = '\0';
136 break;
137 }
138 printer = buf;
139 printf("%s:\n", printer);
140 displayq(lflag);
141 free(buf);
142 printf("\n");
143 }
144 } else
145 displayq(lflag);
146 exit(0);
147 }
148
149 static __dead void
usage(void)150 usage(void)
151 {
152 extern char *__progname;
153
154 fprintf(stderr,
155 "usage: %s [-al] [-Pprinter] [job# ...] [user ...]\n",
156 __progname);
157 exit(1);
158 }
159