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
60int	 requ[MAXREQUESTS];	/* job number of spool entries */
61int	 requests;		/* # of spool requests */
62char	*user[MAXUSERS];	/* users to process */
63int	 users;			/* # of users in user array */
64
65volatile sig_atomic_t gotintr;
66
67static __dead void usage(void);
68
69int
70main(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
149static __dead void
150usage(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