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 36 static 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 #if 0 42 #ifndef lint 43 static char sccsid[] = "@(#)lpq.c 8.3 (Berkeley) 5/10/95"; 44 #endif /* not lint */ 45 #endif 46 47 #include "lp.cdefs.h" /* A cross-platform version of <sys/cdefs.h> */ 48 __FBSDID("$FreeBSD$"); 49 50 /* 51 * Spool Queue examination program 52 * 53 * lpq [-a] [-l] [-Pprinter] [user...] [job...] 54 * 55 * -a show all non-null queues on the local machine 56 * -l long output 57 * -P used to identify printer as per lpr/lprm 58 */ 59 60 #include <sys/param.h> 61 62 #include <ctype.h> 63 #include <dirent.h> 64 #include <err.h> 65 #include <stdio.h> 66 #include <stdlib.h> 67 #include <syslog.h> 68 #include <unistd.h> 69 70 #include "lp.h" 71 #include "lp.local.h" 72 #include "pathnames.h" 73 74 int requ[MAXREQUESTS]; /* job number of spool entries */ 75 int requests; /* # of spool requests */ 76 char *user[MAXUSERS]; /* users to process */ 77 int users; /* # of users in user array */ 78 79 uid_t uid, euid; 80 81 static int ckqueue(const struct printer *_pp); 82 static void usage(void); 83 int main(int _argc, char **_argv); 84 85 int 86 main(int argc, char **argv) 87 { 88 int ch, aflag, lflag; 89 const char *printer; 90 struct printer myprinter, *pp = &myprinter; 91 92 printer = NULL; 93 euid = geteuid(); 94 uid = getuid(); 95 seteuid(uid); 96 progname = *argv; 97 if (gethostname(local_host, sizeof(local_host))) 98 err(1, "gethostname"); 99 openlog("lpd", 0, LOG_LPR); 100 101 aflag = lflag = 0; 102 while ((ch = getopt(argc, argv, "alP:")) != -1) 103 switch((char)ch) { 104 case 'a': 105 ++aflag; 106 break; 107 case 'l': /* long output */ 108 ++lflag; 109 break; 110 case 'P': /* printer name */ 111 printer = optarg; 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(0, "too many requests"); 125 requ[requests++] = atoi(*argv); 126 } 127 else { 128 if (users >= MAXUSERS) 129 fatal(0, "too many users"); 130 user[users++] = *argv; 131 } 132 133 if (aflag) { 134 int more, status; 135 136 more = firstprinter(pp, &status); 137 if (status) 138 goto looperr; 139 while (more) { 140 if (ckqueue(pp) > 0) { 141 printf("%s:\n", pp->printer); 142 displayq(pp, lflag); 143 printf("\n"); 144 } 145 do { 146 more = nextprinter(pp, &status); 147 looperr: 148 switch (status) { 149 case PCAPERR_TCOPEN: 150 printf("warning: %s: unresolved " 151 "tc= reference(s) ", 152 pp->printer); 153 case PCAPERR_SUCCESS: 154 break; 155 default: 156 fatal(pp, "%s", pcaperr(status)); 157 } 158 } while (more && status); 159 } 160 } else { 161 int status; 162 163 init_printer(pp); 164 status = getprintcap(printer, pp); 165 if (status < 0) 166 fatal(pp, "%s", pcaperr(status)); 167 168 displayq(pp, lflag); 169 } 170 exit(0); 171 } 172 173 static int 174 ckqueue(const struct printer *pp) 175 { 176 register struct dirent *d; 177 DIR *dirp; 178 char *spooldir; 179 180 spooldir = pp->spool_dir; 181 if ((dirp = opendir(spooldir)) == NULL) 182 return (-1); 183 while ((d = readdir(dirp)) != NULL) { 184 if (d->d_name[0] != 'c' || d->d_name[1] != 'f') 185 continue; /* daemon control files only */ 186 closedir(dirp); 187 return (1); /* found something */ 188 } 189 closedir(dirp); 190 return (0); 191 } 192 193 static void 194 usage(void) 195 { 196 fprintf(stderr, 197 "usage: lpq [-a] [-l] [-Pprinter] [user ...] [job ...]\n"); 198 exit(1); 199 } 200