1 /* $NetBSD: lpq.c,v 1.20 2022/04/08 10:17:55 andvar Exp $ */
2
3 /*
4 * Copyright (c) 1983, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #include <sys/cdefs.h>
34 #ifndef lint
35 __COPYRIGHT("@(#) Copyright (c) 1983, 1993\
36 The Regents of the University of California. All rights reserved.");
37 #if 0
38 static char sccsid[] = "@(#)lpq.c 8.3 (Berkeley) 5/10/95";
39 #else
40 __RCSID("$NetBSD: lpq.c,v 1.20 2022/04/08 10:17:55 andvar Exp $");
41 #endif
42 #endif /* not lint */
43
44 /*
45 * Spool Queue examination program
46 *
47 * lpq [-a] [-l] [-Pprinter] [user...] [job...]
48 *
49 * -a show all non-null queues on the local machine
50 * -l long output
51 * -P used to identify printer as per lpr/lprm
52 */
53
54 #include <sys/param.h>
55
56 #include <syslog.h>
57 #include <dirent.h>
58 #include <unistd.h>
59 #include <stdlib.h>
60 #include <stdio.h>
61 #include <ctype.h>
62 #include <err.h>
63
64 #include "lp.h"
65 #include "lp.local.h"
66 #include "pathnames.h"
67
68 int requ[MAXREQUESTS]; /* job number of spool entries */
69 int requests; /* # of spool requests */
70 char *user[MAXUSERS]; /* users to process */
71 int users; /* # of users in user array */
72 uid_t uid, euid;
73
74 static void usage(void) __dead;
75
76 int
main(int argc,char * argv[])77 main(int argc, char *argv[])
78 {
79 int ch, aflag, lflag;
80 char *buf, *cp;
81
82 setprogname(*argv);
83 euid = geteuid();
84 uid = getuid();
85 seteuid(uid);
86 if (gethostname(host, sizeof(host)))
87 err(1, "lpq: gethostname");
88 host[sizeof(host) - 1] = '\0';
89 openlog("lpd", 0, LOG_LPR);
90
91 aflag = lflag = 0;
92 while ((ch = getopt(argc, argv, "alP:w:")) != -1)
93 switch((char)ch) {
94 case 'a':
95 ++aflag;
96 break;
97 case 'l': /* long output */
98 ++lflag;
99 break;
100 case 'P': /* printer name */
101 printer = optarg;
102 break;
103 case 'w':
104 wait_time = atoi(optarg);
105 if (wait_time < 0)
106 errx(1, "wait time must be positive: %s",
107 optarg);
108 if (wait_time < 30)
109 warnx("warning: wait time less than 30 seconds");
110 break;
111 case '?':
112 default:
113 usage();
114 }
115
116 if (!aflag && printer == NULL && (printer = getenv("PRINTER")) == NULL)
117 printer = DEFLP;
118
119 for (argc -= optind, argv += optind; argc; --argc, ++argv)
120 if (isdigit((unsigned char)argv[0][0])) {
121 if (requests >= MAXREQUESTS)
122 fatal("too many requests");
123 requ[requests++] = atoi(*argv);
124 }
125 else {
126 if (users >= MAXUSERS)
127 fatal("too many users");
128 user[users++] = *argv;
129 }
130
131 if (aflag) {
132 while (cgetnext(&buf, printcapdb) > 0) {
133 if (ckqueue(buf) <= 0) {
134 free(buf);
135 continue; /* no jobs */
136 }
137 for (cp = buf; *cp; cp++)
138 if (*cp == '|' || *cp == ':') {
139 *cp = '\0';
140 break;
141 }
142 printer = buf;
143 printf("%s:\n", printer);
144 displayq(lflag);
145 free(buf);
146 printf("\n");
147 }
148 } else
149 displayq(lflag);
150 return 0;
151 }
152
153 static void
usage(void)154 usage(void)
155 {
156 (void)fprintf(stderr, "Usage: %s [-a] [-l] [-Pprinter] [-w maxwait] [user ...] [job ...]\n", getprogname());
157 exit(1);
158 }
159