Style(9) cleanup.
[dragonfly.git] / usr.sbin / lpr / lpq / lpq.c
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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.
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33 *
34 * @(#) Copyright (c) 1983, 1993 The Regents of the University of California. All rights reserved.
35 * @(#)lpq.c 8.3 (Berkeley) 5/10/95
36 * $FreeBSD: src/usr.sbin/lpr/lpq/lpq.c,v 1.7.2.4 2001/07/22 02:51:53 gad Exp $
be6b9a2e 37 * $DragonFly: src/usr.sbin/lpr/lpq/lpq.c,v 1.3 2004/03/22 22:32:50 cpressey Exp $
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38 */
39
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40/*
41 * Spool Queue examination program
42 *
43 * lpq [-a] [-l] [-Pprinter] [user...] [job...]
44 *
45 * -a show all non-null queues on the local machine
46 * -l long output
47 * -P used to identify printer as per lpr/lprm
48 */
49
50#include <sys/param.h>
51
52#include <ctype.h>
53#include <dirent.h>
54#include <err.h>
55#include <stdio.h>
56#include <stdlib.h>
57#include <syslog.h>
58#include <unistd.h>
59
60#include "lp.h"
61#include "lp.local.h"
62#include "pathnames.h"
63
64int requ[MAXREQUESTS]; /* job number of spool entries */
65int requests; /* # of spool requests */
66char *user[MAXUSERS]; /* users to process */
67int users; /* # of users in user array */
68
69uid_t uid, euid;
70
71static int ckqueue(const struct printer *_pp);
72static void usage(void);
73int main(int _argc, char **_argv);
74
75int
76main(int argc, char **argv)
77{
78 int ch, aflag, lflag;
79 const char *printer;
80 struct printer myprinter, *pp = &myprinter;
81
82 printer = NULL;
83 euid = geteuid();
84 uid = getuid();
85 seteuid(uid);
86 progname = *argv;
87 if (gethostname(local_host, sizeof(local_host)))
88 err(1, "gethostname");
89 openlog("lpd", 0, LOG_LPR);
90
91 aflag = lflag = 0;
92 while ((ch = getopt(argc, argv, "alP:")) != -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 '?':
104 default:
105 usage();
106 }
107
108 if (!aflag && printer == NULL && (printer = getenv("PRINTER")) == NULL)
109 printer = DEFLP;
110
111 for (argc -= optind, argv += optind; argc; --argc, ++argv)
112 if (isdigit(argv[0][0])) {
113 if (requests >= MAXREQUESTS)
114 fatal(0, "too many requests");
115 requ[requests++] = atoi(*argv);
116 }
117 else {
118 if (users >= MAXUSERS)
119 fatal(0, "too many users");
120 user[users++] = *argv;
121 }
122
123 if (aflag) {
124 int more, status;
125
126 more = firstprinter(pp, &status);
127 if (status)
128 goto looperr;
129 while (more) {
130 if (ckqueue(pp) > 0) {
131 printf("%s:\n", pp->printer);
132 displayq(pp, lflag);
133 printf("\n");
134 }
135 do {
136 more = nextprinter(pp, &status);
137looperr:
138 switch (status) {
139 case PCAPERR_TCOPEN:
140 printf("warning: %s: unresolved "
141 "tc= reference(s) ",
142 pp->printer);
143 case PCAPERR_SUCCESS:
144 break;
145 default:
146 fatal(pp, "%s", pcaperr(status));
147 }
148 } while (more && status);
149 }
150 } else {
151 int status;
152
153 init_printer(pp);
154 status = getprintcap(printer, pp);
155 if (status < 0)
156 fatal(pp, "%s", pcaperr(status));
157
158 displayq(pp, lflag);
159 }
160 exit(0);
161}
162
163static int
164ckqueue(const struct printer *pp)
165{
be6b9a2e 166 struct dirent *d;
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167 DIR *dirp;
168 char *spooldir;
169
170 spooldir = pp->spool_dir;
171 if ((dirp = opendir(spooldir)) == NULL)
172 return (-1);
173 while ((d = readdir(dirp)) != NULL) {
174 if (d->d_name[0] != 'c' || d->d_name[1] != 'f')
175 continue; /* daemon control files only */
176 closedir(dirp);
177 return (1); /* found something */
178 }
179 closedir(dirp);
180 return (0);
181}
182
183static void
184usage(void)
185{
186 fprintf(stderr,
187 "usage: lpq [-a] [-l] [-Pprinter] [user ...] [job ...]\n");
188 exit(1);
189}