1 /* $OpenBSD: lpq.c,v 1.18 2008/05/26 06:30:36 otto 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 #ifndef lint 35 static const char copyright[] = 36 "@(#) Copyright (c) 1983, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 #if 0 42 static const char sccsid[] = "@(#)lpq.c 8.3 (Berkeley) 5/10/95"; 43 #else 44 static const char rcsid[] = "$OpenBSD: lpq.c,v 1.18 2008/05/26 06:30:36 otto 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 <ctype.h> 61 #include <dirent.h> 62 #include <err.h> 63 #include <errno.h> 64 #include <unistd.h> 65 #include <stdlib.h> 66 #include <stdio.h> 67 #include <syslog.h> 68 69 #include "lp.h" 70 #include "lp.local.h" 71 #include "pathnames.h" 72 73 int requ[MAXREQUESTS]; /* job number of spool entries */ 74 int requests; /* # of spool requests */ 75 char *user[MAXUSERS]; /* users to process */ 76 int users; /* # of users in user array */ 77 78 volatile sig_atomic_t gotintr; 79 80 static int ckqueue(char *); 81 static __dead void usage(void); 82 83 int 84 main(int argc, char **argv) 85 { 86 int ch, aflag, lflag; 87 char *buf, *cp; 88 long l; 89 90 effective_uid = geteuid(); 91 real_uid = getuid(); 92 effective_gid = getegid(); 93 real_gid = getgid(); 94 PRIV_END; /* be safe */ 95 96 if (gethostname(host, sizeof(host)) != 0) 97 err(1, "gethostname"); 98 openlog("lpq", 0, LOG_LPR); 99 100 aflag = lflag = 0; 101 while ((ch = getopt(argc, argv, "alP:w:")) != -1) { 102 switch(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 'w': 113 l = strtol(optarg, &cp, 10); 114 if (*cp != '\0' || l < 0 || l >= INT_MAX) 115 errx(1, "wait time must be postive integer: %s", 116 optarg); 117 wait_time = (u_int)l; 118 if (wait_time < 30) 119 warnx("warning: wait time less than 30 seconds"); 120 break; 121 case '?': 122 default: 123 usage(); 124 } 125 } 126 127 if (!aflag && printer == NULL && (printer = getenv("PRINTER")) == NULL) 128 printer = DEFLP; 129 130 for (argc -= optind, argv += optind; argc; --argc, ++argv) 131 if (isdigit(argv[0][0])) { 132 if (requests >= MAXREQUESTS) 133 fatal("too many requests"); 134 requ[requests++] = atoi(*argv); 135 } 136 else { 137 if (users >= MAXUSERS) 138 fatal("too many users"); 139 user[users++] = *argv; 140 } 141 142 if (aflag) { 143 while (cgetnext(&buf, printcapdb) > 0) { 144 if (ckqueue(buf) <= 0) { 145 free(buf); 146 continue; /* no jobs */ 147 } 148 for (cp = buf; *cp; cp++) 149 if (*cp == '|' || *cp == ':') { 150 *cp = '\0'; 151 break; 152 } 153 printer = buf; 154 printf("%s:\n", printer); 155 displayq(lflag); 156 free(buf); 157 printf("\n"); 158 } 159 } else 160 displayq(lflag); 161 exit(0); 162 } 163 164 /* XXX - could be common w/ lpd */ 165 static int 166 ckqueue(char *cap) 167 { 168 struct dirent *d; 169 DIR *dirp; 170 char *spooldir; 171 172 if (cgetstr(cap, "sd", &spooldir) >= 0) { 173 dirp = opendir(spooldir); 174 free(spooldir); 175 } else 176 dirp = opendir(_PATH_DEFSPOOL); 177 178 if (dirp == NULL) 179 return (-1); 180 while ((d = readdir(dirp)) != NULL) { 181 if (d->d_name[0] != 'c' || d->d_name[1] != 'f') 182 continue; /* daemon control files only */ 183 closedir(dirp); 184 return (1); /* found something */ 185 } 186 closedir(dirp); 187 return (0); 188 } 189 190 static __dead void 191 usage(void) 192 { 193 extern char *__progname; 194 195 fprintf(stderr, 196 "usage: %s [-al] [-Pprinter] [job# ...] [user ...]\n", 197 __progname); 198 exit(1); 199 } 200