NetBSD/usr.sbin/lpr/lprm/lprm.c

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/* $NetBSD: lprm.c,v 1.10 1999/12/07 14:54:48 mrg Exp $ */
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/*
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* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
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*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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>
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#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\
The Regents of the University of California. All rights reserved.\n");
#if 0
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static char sccsid[] = "@(#)lprm.c 8.1 (Berkeley) 6/6/93";
#else
__RCSID("$NetBSD: lprm.c,v 1.10 1999/12/07 14:54:48 mrg Exp $");
#endif
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#endif /* not lint */
/*
* lprm - remove the current user's spool entry
*
* lprm [-] [[job #] [user] ...]
*
* Using information in the lock file, lprm will kill the
* currently active daemon (if necessary), remove the associated files,
* and startup a new daemon. Privileged users may remove anyone's spool
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* entries, otherwise one can only remove their own.
*/
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#include <sys/param.h>
#include <err.h>
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#include <syslog.h>
#include <dirent.h>
#include <pwd.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
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#include "lp.h"
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#include "lp.local.h"
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/*
* Stuff for handling job specifications
*/
char *person; /* name of person doing lprm */
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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; /* real and effective user id's */
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static char luser[16]; /* buffer for person */
static void usage __P((void));
int main __P((int, char *[]));
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int
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main(argc, argv)
int argc;
char *argv[];
{
char *arg;
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struct passwd *p;
uid = getuid();
euid = geteuid();
seteuid(uid); /* be safe */
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name = argv[0];
gethostname(host, sizeof(host));
host[sizeof(host) - 1] = '\0';
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openlog("lpd", 0, LOG_LPR);
if ((p = getpwuid(getuid())) == NULL)
fatal("Who are you?");
if (strlen(p->pw_name) >= sizeof(luser))
fatal("Your name is too long");
strncpy(luser, p->pw_name, sizeof(luser) - 1);
luser[sizeof(luser) - 1] = '\0';
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person = luser;
while (--argc) {
if ((arg = *++argv)[0] == '-')
switch (arg[1]) {
case 'P':
if (arg[2])
printer = &arg[2];
else if (argc > 1) {
argc--;
printer = *++argv;
}
break;
case 'w':
if (arg[2])
wait_time = atoi(&arg[2]);
else if (argc > 1) {
argc--;
wait_time = atoi(*++argv);
}
if (wait_time < 0)
errx(1, "wait time must be postive: %s",
optarg);
if (wait_time < 30)
warnx("warning: wait time less than 30 seconds");
break;
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case '\0':
if (!users) {
users = -1;
break;
}
default:
usage();
}
else {
if (users < 0)
usage();
if (isdigit(arg[0])) {
if (requests >= MAXREQUESTS)
fatal("Too many requests");
requ[requests++] = atoi(arg);
} else {
if (users >= MAXUSERS)
fatal("Too many users");
user[users++] = arg;
}
}
}
if (printer == NULL && (printer = getenv("PRINTER")) == NULL)
printer = DEFLP;
rmjob();
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exit(0);
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}
static void
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usage()
{
fprintf(stderr, "usage: lprm [-] [-Pprinter] [[job #] [user] ...]\n");
exit(2);
}