/*      $NetBSD: lpq.c,v 1.20 2022/04/08 10:17:55 andvar Exp $  */

/*
* Copyright (c) 1983, 1993
*      The Regents of the University of California.  All rights reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1983, 1993\
The Regents of the University of California.  All rights reserved.");
#if 0
static char sccsid[] = "@(#)lpq.c       8.3 (Berkeley) 5/10/95";
#else
__RCSID("$NetBSD: lpq.c,v 1.20 2022/04/08 10:17:55 andvar Exp $");
#endif
#endif /* not lint */

/*
* Spool Queue examination program
*
* lpq [-a] [-l] [-Pprinter] [user...] [job...]
*
* -a show all non-null queues on the local machine
* -l long output
* -P used to identify printer as per lpr/lprm
*/

#include <sys/param.h>

#include <syslog.h>
#include <dirent.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <err.h>

#include "lp.h"
#include "lp.local.h"
#include "pathnames.h"

int      requ[MAXREQUESTS];     /* job number of spool entries */
int      requests;              /* # of spool requests */
char    *user[MAXUSERS];        /* users to process */
int      users;                 /* # of users in user array */
uid_t   uid, euid;

static void usage(void) __dead;

int
main(int argc, char *argv[])
{
       int     ch, aflag, lflag;
       char    *buf, *cp;

       setprogname(*argv);
       euid = geteuid();
       uid = getuid();
       seteuid(uid);
       if (gethostname(host, sizeof(host)))
               err(1, "lpq: gethostname");
       host[sizeof(host) - 1] = '\0';
       openlog("lpd", 0, LOG_LPR);

       aflag = lflag = 0;
       while ((ch = getopt(argc, argv, "alP:w:")) != -1)
               switch((char)ch) {
               case 'a':
                       ++aflag;
                       break;
               case 'l':                       /* long output */
                       ++lflag;
                       break;
               case 'P':               /* printer name */
                       printer = optarg;
                       break;
               case 'w':
                       wait_time = atoi(optarg);
                       if (wait_time < 0)
                               errx(1, "wait time must be positive: %s",
                                   optarg);
                       if (wait_time < 30)
                           warnx("warning: wait time less than 30 seconds");
                       break;
               case '?':
               default:
                       usage();
               }

       if (!aflag && printer == NULL && (printer = getenv("PRINTER")) == NULL)
               printer = DEFLP;

       for (argc -= optind, argv += optind; argc; --argc, ++argv)
               if (isdigit((unsigned char)argv[0][0])) {
                       if (requests >= MAXREQUESTS)
                               fatal("too many requests");
                       requ[requests++] = atoi(*argv);
               }
               else {
                       if (users >= MAXUSERS)
                               fatal("too many users");
                       user[users++] = *argv;
               }

       if (aflag) {
               while (cgetnext(&buf, printcapdb) > 0) {
                       if (ckqueue(buf) <= 0) {
                               free(buf);
                               continue;       /* no jobs */
                       }
                       for (cp = buf; *cp; cp++)
                               if (*cp == '|' || *cp == ':') {
                                       *cp = '\0';
                                       break;
                               }
                       printer = buf;
                       printf("%s:\n", printer);
                       displayq(lflag);
                       free(buf);
                       printf("\n");
               }
       } else
               displayq(lflag);
       return 0;
}

static void
usage(void)
{
       (void)fprintf(stderr, "Usage: %s [-a] [-l] [-Pprinter] [-w maxwait] [user ...] [job ...]\n", getprogname());
       exit(1);
}