1 /* $NetBSD: lpq.c,v 1.14 2003/09/01 00:21:09 itojun 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. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 #ifndef lint 35 __COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\ 36 The Regents of the University of California. All rights reserved.\n"); 37 #if 0 38 static char sccsid[] = "@(#)lpq.c 8.3 (Berkeley) 5/10/95"; 39 #else 40 __RCSID("$NetBSD: lpq.c,v 1.14 2003/09/01 00:21:09 itojun Exp $"); 41 #endif 42 #endif /* not lint */ 43 44 /* 45 * Spool Queue examination program 46 * 47 * lpq [-a] [-l] [-Pprinter] [user...] [job...] 48 * 49 * -a show all non-null queues on the local machine 50 * -l long output 51 * -P used to identify printer as per lpr/lprm 52 */ 53 54 #include <sys/param.h> 55 56 #include <syslog.h> 57 #include <dirent.h> 58 #include <unistd.h> 59 #include <stdlib.h> 60 #include <stdio.h> 61 #include <ctype.h> 62 #include <err.h> 63 64 #include "lp.h" 65 #include "lp.local.h" 66 #include "pathnames.h" 67 68 int requ[MAXREQUESTS]; /* job number of spool entries */ 69 int requests; /* # of spool requests */ 70 char *user[MAXUSERS]; /* users to process */ 71 int users; /* # of users in user array */ 72 uid_t uid, euid; 73 74 static int ckqueue(char *); 75 static void usage(void); 76 int main(int, char *[]); 77 78 int 79 main(int argc, char *argv[]) 80 { 81 int ch, aflag, lflag; 82 char *buf, *cp; 83 84 euid = geteuid(); 85 uid = getuid(); 86 seteuid(uid); 87 name = *argv; 88 if (gethostname(host, sizeof(host))) 89 err(1, "lpq: gethostname"); 90 host[sizeof(host) - 1] = '\0'; 91 openlog("lpd", 0, LOG_LPR); 92 93 aflag = lflag = 0; 94 while ((ch = getopt(argc, argv, "alP:w:")) != -1) 95 switch((char)ch) { 96 case 'a': 97 ++aflag; 98 break; 99 case 'l': /* long output */ 100 ++lflag; 101 break; 102 case 'P': /* printer name */ 103 printer = optarg; 104 break; 105 case 'w': 106 wait_time = atoi(optarg); 107 if (wait_time < 0) 108 errx(1, "wait time must be postive: %s", 109 optarg); 110 if (wait_time < 30) 111 warnx("warning: wait time less than 30 seconds"); 112 break; 113 case '?': 114 default: 115 usage(); 116 } 117 118 if (!aflag && printer == NULL && (printer = getenv("PRINTER")) == NULL) 119 printer = DEFLP; 120 121 for (argc -= optind, argv += optind; argc; --argc, ++argv) 122 if (isdigit(argv[0][0])) { 123 if (requests >= MAXREQUESTS) 124 fatal("too many requests"); 125 requ[requests++] = atoi(*argv); 126 } 127 else { 128 if (users >= MAXUSERS) 129 fatal("too many users"); 130 user[users++] = *argv; 131 } 132 133 if (aflag) { 134 while (cgetnext(&buf, printcapdb) > 0) { 135 if (ckqueue(buf) <= 0) { 136 free(buf); 137 continue; /* no jobs */ 138 } 139 for (cp = buf; *cp; cp++) 140 if (*cp == '|' || *cp == ':') { 141 *cp = '\0'; 142 break; 143 } 144 printer = buf; 145 printf("%s:\n", printer); 146 displayq(lflag); 147 free(buf); 148 printf("\n"); 149 } 150 } else 151 displayq(lflag); 152 exit(0); 153 } 154 155 static int 156 ckqueue(char *cap) 157 { 158 struct dirent *d; 159 DIR *dirp; 160 char *spooldir; 161 162 if (cgetstr(cap, "sd", &spooldir) == -1) 163 spooldir = _PATH_DEFSPOOL; 164 if ((dirp = opendir(spooldir)) == NULL) { 165 if (spooldir != _PATH_DEFSPOOL) 166 free(spooldir); 167 return (-1); 168 } 169 while ((d = readdir(dirp)) != NULL) { 170 if (d->d_name[0] != 'c' || d->d_name[1] != 'f') 171 continue; /* daemon control files only */ 172 closedir(dirp); 173 if (spooldir != _PATH_DEFSPOOL) 174 free(spooldir); 175 return (1); /* found something */ 176 } 177 closedir(dirp); 178 if (spooldir != _PATH_DEFSPOOL) 179 free(spooldir); 180 return (0); 181 } 182 183 static void 184 usage(void) 185 { 186 puts("usage: lpq [-a] [-l] [-Pprinter] [-w maxwait] [user ...] [job ...]"); 187 exit(1); 188 } 189