lpq.c revision 1.12 
1/*	$NetBSD: lpq.c,v 1.12 2002/07/14 15:28:00 wiz 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. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This product includes software developed by the University of
19 *	California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#include <sys/cdefs.h>
38#ifndef lint
39__COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\
40	The Regents of the University of California.  All rights reserved.\n");
41#if 0
42static char sccsid[] = "@(#)lpq.c	8.3 (Berkeley) 5/10/95";
43#else
44__RCSID("$NetBSD: lpq.c,v 1.12 2002/07/14 15:28:00 wiz Exp $");
45#endif
46#endif /* not lint */
47
48/*
49 * Spool Queue examination program
50 *
51 * lpq [-a] [-l] [-Pprinter] [user...] [job...]
52 *
53 * -a show all non-null queues on the local machine
54 * -l long output
55 * -P used to identify printer as per lpr/lprm
56 */
57
58#include <sys/param.h>
59
60#include <syslog.h>
61#include <dirent.h>
62#include <unistd.h>
63#include <stdlib.h>
64#include <stdio.h>
65#include <ctype.h>
66#include <err.h>
67
68#include "lp.h"
69#include "lp.local.h"
70#include "pathnames.h"
71
72int	 requ[MAXREQUESTS];	/* job number of spool entries */
73int	 requests;		/* # of spool requests */
74char	*user[MAXUSERS];	/* users to process */
75int	 users;			/* # of users in user array */
76uid_t	uid, euid;
77
78static int ckqueue(char *);
79static void usage(void);
80int main(int, char *[]);
81
82int
83main(int argc, char *argv[])
84{
85	int	ch, aflag, lflag;
86	char	*buf, *cp;
87
88	euid = geteuid();
89	uid = getuid();
90	seteuid(uid);
91	name = *argv;
92	if (gethostname(host, sizeof(host)))
93		err(1, "lpq: gethostname");
94	host[sizeof(host) - 1] = '\0';
95	openlog("lpd", 0, LOG_LPR);
96
97	aflag = lflag = 0;
98	while ((ch = getopt(argc, argv, "alP:w:")) != -1)
99		switch((char)ch) {
100		case 'a':
101			++aflag;
102			break;
103		case 'l':			/* long output */
104			++lflag;
105			break;
106		case 'P':		/* printer name */
107			printer = optarg;
108			break;
109		case 'w':
110			wait_time = atoi(optarg);
111			if (wait_time < 0)
112				errx(1, "wait time must be postive: %s",
113				    optarg);
114			if (wait_time < 30)
115			    warnx("warning: wait time less than 30 seconds");
116			break;
117		case '?':
118		default:
119			usage();
120		}
121
122	if (!aflag && printer == NULL && (printer = getenv("PRINTER")) == NULL)
123		printer = DEFLP;
124
125	for (argc -= optind, argv += optind; argc; --argc, ++argv)
126		if (isdigit(argv[0][0])) {
127			if (requests >= MAXREQUESTS)
128				fatal("too many requests");
129			requ[requests++] = atoi(*argv);
130		}
131		else {
132			if (users >= MAXUSERS)
133				fatal("too many users");
134			user[users++] = *argv;
135		}
136
137	if (aflag) {
138		while (cgetnext(&buf, printcapdb) > 0) {
139			if (ckqueue(buf) <= 0) {
140				free(buf);
141				continue;	/* no jobs */
142			}
143			for (cp = buf; *cp; cp++)
144				if (*cp == '|' || *cp == ':') {
145					*cp = '\0';
146					break;
147				}
148			printer = buf;
149			printf("%s:\n", printer);
150			displayq(lflag);
151			free(buf);
152			printf("\n");
153		}
154	} else
155		displayq(lflag);
156	exit(0);
157}
158
159static int
160ckqueue(char *cap)
161{
162	struct dirent *d;
163	DIR *dirp;
164	char *spooldir;
165
166	if (cgetstr(cap, "sd", &spooldir) == -1)
167		spooldir = _PATH_DEFSPOOL;
168	if ((dirp = opendir(spooldir)) == NULL)
169		return (-1);
170	while ((d = readdir(dirp)) != NULL) {
171		if (d->d_name[0] != 'c' || d->d_name[1] != 'f')
172			continue;	/* daemon control files only */
173		closedir(dirp);
174		return (1);		/* found something */
175	}
176	closedir(dirp);
177	return (0);
178}
179
180static void
181usage(void)
182{
183	puts("usage: lpq [-a] [-l] [-Pprinter] [-w maxwait] [user ...] [job ...]");
184	exit(1);
185}
186