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/* $OpenBSD: lpq.c,v 1.21 2015/01/16 06:40:18 deraadt Exp $ */
/* $NetBSD: lpq.c,v 1.9 1999/12/07 14:54:47 mrg 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.
*/
/*
* 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 <ctype.h>
#include <signal.h>
#include <dirent.h>
#include <err.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <limits.h>
#include <syslog.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 */
volatile sig_atomic_t gotintr;
static int ckqueue(char *);
static __dead void usage(void);
int
main(int argc, char **argv)
{
int ch, aflag, lflag;
char *buf, *cp;
long l;
effective_uid = geteuid();
real_uid = getuid();
effective_gid = getegid();
real_gid = getgid();
PRIV_END; /* be safe */
if (gethostname(host, sizeof(host)) != 0)
err(1, "gethostname");
openlog("lpq", 0, LOG_LPR);
aflag = lflag = 0;
while ((ch = getopt(argc, argv, "alP:w:")) != -1) {
switch(ch) {
case 'a':
++aflag;
break;
case 'l': /* long output */
++lflag;
break;
case 'P': /* printer name */
printer = optarg;
break;
case 'w':
l = strtol(optarg, &cp, 10);
if (*cp != '\0' || l < 0 || l >= INT_MAX)
errx(1, "wait time must be postive integer: %s",
optarg);
wait_time = (u_int)l;
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);
exit(0);
}
/* XXX - could be common w/ lpd */
static int
ckqueue(char *cap)
{
struct dirent *d;
DIR *dirp;
char *spooldir;
if (cgetstr(cap, "sd", &spooldir) >= 0) {
dirp = opendir(spooldir);
free(spooldir);
} else
dirp = opendir(_PATH_DEFSPOOL);
if (dirp == NULL)
return (-1);
while ((d = readdir(dirp)) != NULL) {
if (d->d_name[0] != 'c' || d->d_name[1] != 'f')
continue; /* daemon control files only */
closedir(dirp);
return (1); /* found something */
}
closedir(dirp);
return (0);
}
static __dead void
usage(void)
{
extern char *__progname;
fprintf(stderr,
"usage: %s [-al] [-Pprinter] [job# ...] [user ...]\n",
__progname);
exit(1);
}
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