usr.sbin/lpr/lpq/lpq.c

   1 /*      $NetBSD: lpq.c,v 1.18 2008/07/21 13:36:58 lukem 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\
  36  The Regents of the University of California.  All rights reserved.");
  37 #if 0
  38 static char sccsid[] = "@(#)lpq.c       8.3 (Berkeley) 5/10/95";
  39 #else
  40 __RCSID("$NetBSD: lpq.c,v 1.18 2008/07/21 13:36:58 lukem 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 void usage(void) __dead;
  75
  76 int
  77 main(int argc, char *argv[])
  78 {
  79         int     ch, aflag, lflag;
  80         char    *buf, *cp;
  81
  82         setprogname(*argv);
  83         euid = geteuid();
  84         uid = getuid();
  85         seteuid(uid);
  86         if (gethostname(host, sizeof(host)))
  87                 err(1, "lpq: gethostname");
  88         host[sizeof(host) - 1] = '\0';
  89         openlog("lpd", 0, LOG_LPR);
  90
  91         aflag = lflag = 0;
  92         while ((ch = getopt(argc, argv, "alP:w:")) != -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 'w':
 104                         wait_time = atoi(optarg);
 105                         if (wait_time < 0)
 106                                 errx(1, "wait time must be postive: %s",
 107                                     optarg);
 108                         if (wait_time < 30)
 109                             warnx("warning: wait time less than 30 seconds");
 110                         break;
 111                 case '?':
 112                 default:
 113                         usage();
 114                 }
 115
 116         if (!aflag && printer == NULL && (printer = getenv("PRINTER")) == NULL)
 117                 printer = DEFLP;
 118
 119         for (argc -= optind, argv += optind; argc; --argc, ++argv)
 120                 if (isdigit((unsigned char)argv[0][0])) {
 121                         if (requests >= MAXREQUESTS)
 122                                 fatal("too many requests");
 123                         requ[requests++] = atoi(*argv);
 124                 }
 125                 else {
 126                         if (users >= MAXUSERS)
 127                                 fatal("too many users");
 128                         user[users++] = *argv;
 129                 }
 130
 131         if (aflag) {
 132                 while (cgetnext(&buf, printcapdb) > 0) {
 133                         if (ckqueue(buf) <= 0) {
 134                                 free(buf);
 135                                 continue;       /* no jobs */
 136                         }
 137                         for (cp = buf; *cp; cp++)
 138                                 if (*cp == '|' || *cp == ':') {
 139                                         *cp = '\0';
 140                                         break;
 141                                 }
 142                         printer = buf;
 143                         printf("%s:\n", printer);
 144                         displayq(lflag);
 145                         free(buf);
 146                         printf("\n");
 147                 }
 148         } else
 149                 displayq(lflag);
 150         return 0;
 151 }
 152
 153 static void
 154 usage(void)
 155 {
 156         (void)fprintf(stderr, "Usage: %s [-a] [-l] [-Pprinter] [-w maxwait] [user ...] [job ...]\n", getprogname());
 157         exit(1);
 158 }