2 * Copyright (c) 1994 Adam Glass
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Adam Glass.
16 * 4. The name of the Author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY Adam Glass ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL Adam Glass BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * $FreeBSD: src/usr.bin/ipcrm/ipcrm.c,v 1.6 1999/08/28 01:02:14 peter Exp $
32 * $DragonFly: src/usr.bin/ipcrm/ipcrm.c,v 1.4 2004/11/19 18:35:29 liamfoy Exp $
41 #include <sys/types.h>
47 #define IPC_TO_STR(x) (x == 'Q' ? "msq" : (x == 'M' ? "shm" : "sem"))
48 #define IPC_TO_STRING(x) (x == 'Q' ? "message queue" : \
49 (x == 'M' ? "shared memory segment" : "semaphore"))
51 volatile sig_atomic_t signaled;
53 static void usage(void);
54 static int msgrm(key_t, int);
55 static int shmrm(key_t, int);
56 static int semrm(key_t, int);
57 static void not_configured(int);
62 fprintf(stderr, "%s\n%s\n",
63 "usage: ipcrm [-q msqid] [-m shmid] [-s semid]",
64 " [-Q msgkey] [-M shmkey] [-S semkey] ...");
69 msgrm(key_t key, int id)
76 return msgctl(id, IPC_RMID, NULL);
80 shmrm(key_t key, int id)
83 id = shmget(key, 0, 0);
87 return shmctl(id, IPC_RMID, NULL);
91 semrm(key_t key, int id)
96 id = semget(key, 0, 0);
100 return semctl(id, 0, IPC_RMID, arg);
104 not_configured(int signo __unused)
110 main(int argc, char **argv)
112 int c, result, errflg, target_id;
116 signal(SIGSYS, not_configured);
117 while ((c = getopt(argc, argv, ":q:m:s:Q:M:S:")) != -1) {
124 target_id = atoi(optarg);
126 result = msgrm(0, target_id);
128 result = shmrm(0, target_id);
130 result = semrm(0, target_id);
134 warn("%sid(%d)", IPC_TO_STR(toupper(c)), target_id);
136 warnx("%ss are not configured in the running kernel",
137 IPC_TO_STRING(toupper(c)));
143 target_key = atol(optarg);
144 if (target_key == IPC_PRIVATE) {
145 warnx("can't remove private %ss", IPC_TO_STRING(c));
149 result = msgrm(target_key, 0);
151 result = shmrm(target_key, 0);
153 result = semrm(target_key, 0);
157 warn("%s key %ld aborted", IPC_TO_STR(c), target_key);
159 warnx("%ss are not configured in the running kernel",
164 warnx("option -%c requires an argument\n", optopt);
167 warnx("unrecognized option: -%c\n", optopt);
172 if (optind != argc) {
173 warnx("unknown argument: %s\n", argv[optind]);