Initial import from FreeBSD RELENG_4:
[dragonfly.git] / usr.sbin / lpr / lpq / lpq.c
CommitLineData
984263bc
MD
1/*
2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by the University of
17 * California, Berkeley and its contributors.
18 * 4. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#ifndef lint
36static const char copyright[] =
37"@(#) Copyright (c) 1983, 1993\n\
38 The Regents of the University of California. All rights reserved.\n";
39#endif /* not lint */
40
41#ifndef lint
42/*
43static char sccsid[] = "@(#)lpq.c 8.3 (Berkeley) 5/10/95";
44*/
45static const char rcsid[] =
46 "$FreeBSD: src/usr.sbin/lpr/lpq/lpq.c,v 1.7.2.4 2001/07/22 02:51:53 gad Exp $";
47#endif /* not lint */
48
49/*
50 * Spool Queue examination program
51 *
52 * lpq [-a] [-l] [-Pprinter] [user...] [job...]
53 *
54 * -a show all non-null queues on the local machine
55 * -l long output
56 * -P used to identify printer as per lpr/lprm
57 */
58
59#include <sys/param.h>
60
61#include <ctype.h>
62#include <dirent.h>
63#include <err.h>
64#include <stdio.h>
65#include <stdlib.h>
66#include <syslog.h>
67#include <unistd.h>
68
69#include "lp.h"
70#include "lp.local.h"
71#include "pathnames.h"
72
73int requ[MAXREQUESTS]; /* job number of spool entries */
74int requests; /* # of spool requests */
75char *user[MAXUSERS]; /* users to process */
76int users; /* # of users in user array */
77
78uid_t uid, euid;
79
80static int ckqueue(const struct printer *_pp);
81static void usage(void);
82int main(int _argc, char **_argv);
83
84int
85main(int argc, char **argv)
86{
87 int ch, aflag, lflag;
88 const char *printer;
89 struct printer myprinter, *pp = &myprinter;
90
91 printer = NULL;
92 euid = geteuid();
93 uid = getuid();
94 seteuid(uid);
95 progname = *argv;
96 if (gethostname(local_host, sizeof(local_host)))
97 err(1, "gethostname");
98 openlog("lpd", 0, LOG_LPR);
99
100 aflag = lflag = 0;
101 while ((ch = getopt(argc, argv, "alP:")) != -1)
102 switch((char)ch) {
103 case 'a':
104 ++aflag;
105 break;
106 case 'l': /* long output */
107 ++lflag;
108 break;
109 case 'P': /* printer name */
110 printer = optarg;
111 break;
112 case '?':
113 default:
114 usage();
115 }
116
117 if (!aflag && printer == NULL && (printer = getenv("PRINTER")) == NULL)
118 printer = DEFLP;
119
120 for (argc -= optind, argv += optind; argc; --argc, ++argv)
121 if (isdigit(argv[0][0])) {
122 if (requests >= MAXREQUESTS)
123 fatal(0, "too many requests");
124 requ[requests++] = atoi(*argv);
125 }
126 else {
127 if (users >= MAXUSERS)
128 fatal(0, "too many users");
129 user[users++] = *argv;
130 }
131
132 if (aflag) {
133 int more, status;
134
135 more = firstprinter(pp, &status);
136 if (status)
137 goto looperr;
138 while (more) {
139 if (ckqueue(pp) > 0) {
140 printf("%s:\n", pp->printer);
141 displayq(pp, lflag);
142 printf("\n");
143 }
144 do {
145 more = nextprinter(pp, &status);
146looperr:
147 switch (status) {
148 case PCAPERR_TCOPEN:
149 printf("warning: %s: unresolved "
150 "tc= reference(s) ",
151 pp->printer);
152 case PCAPERR_SUCCESS:
153 break;
154 default:
155 fatal(pp, "%s", pcaperr(status));
156 }
157 } while (more && status);
158 }
159 } else {
160 int status;
161
162 init_printer(pp);
163 status = getprintcap(printer, pp);
164 if (status < 0)
165 fatal(pp, "%s", pcaperr(status));
166
167 displayq(pp, lflag);
168 }
169 exit(0);
170}
171
172static int
173ckqueue(const struct printer *pp)
174{
175 register struct dirent *d;
176 DIR *dirp;
177 char *spooldir;
178
179 spooldir = pp->spool_dir;
180 if ((dirp = opendir(spooldir)) == NULL)
181 return (-1);
182 while ((d = readdir(dirp)) != NULL) {
183 if (d->d_name[0] != 'c' || d->d_name[1] != 'f')
184 continue; /* daemon control files only */
185 closedir(dirp);
186 return (1); /* found something */
187 }
188 closedir(dirp);
189 return (0);
190}
191
192static void
193usage(void)
194{
195 fprintf(stderr,
196 "usage: lpq [-a] [-l] [-Pprinter] [user ...] [job ...]\n");
197 exit(1);
198}