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print usage more often. remove #ifdef NOSHM stuff

This commit is contained in:
glass 1994-08-07 18:27:42 +00:00
parent 59de58a39b
commit 73319ec07e
1 changed files with 22 additions and 15 deletions
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37
usr.bin/ipcrm/ipcrm.c
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@ -7,7 +7,13 @@
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. The name of the Author may not be used to endorse or promote products
* 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 Adam Glass.
* 4. The name of the Author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Adam Glass ``AS IS'' AND
@ -22,7 +28,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: ipcrm.c,v 1.3 1994/05/11 07:43:59 cgd Exp $
* $Id: ipcrm.c,v 1.4 1994/08/07 18:27:42 glass Exp $
*/
#include <stdio.h>
@ -33,9 +39,7 @@
#include <sys/ipc.h>
#include <sys/msg.h>
#include <sys/sem.h>
#ifndef NOSHM
#include <sys/shm.h>
#endif
#define IPC_TO_STR(x) (x == 'Q' ? "msq" : (x == 'M' ? "shm" : "sem"))
#define IPC_TO_STRING(x) (x == 'Q' ? "message queue" : \
@ -43,6 +47,13 @@
int signaled;
void usage()
{
fprintf(stderr, "usage: ipcrm [ [-q msqid] [-m shmid] [-s semid]\n");
fprintf(stderr, " [-Q msgkey] [-M shmkey] [-S semkey] ...]\n");
exit(1);
}
int msgrm(key, id)
key_t key;
int id;
@ -55,7 +66,6 @@ int msgrm(key, id)
return msgctl(id, IPC_RMID, NULL);
}
#ifndef NOSHM
int shmrm(key, id)
key_t key;
int id;
@ -67,7 +77,6 @@ int shmrm(key, id)
}
return shmctl(id, IPC_RMID, NULL);
}
#endif
int semrm(key, id)
key_t key;
@ -108,10 +117,8 @@ int main(argc, argv)
target_id = atoi(optarg);
if (c == 'q')
result = msgrm(0, target_id);
#ifndef NOSHM
else if (c == 'm')
result = shmrm(0, target_id);
#endif
else
result = semrm(0, target_id);
if (result < 0) {
@ -133,10 +140,8 @@ int main(argc, argv)
}
if (c == 'Q')
result = msgrm(target_key, 0);
#ifndef NOSHM
else if (c == 'M')
result = shmrm(target_key, 0);
#endif
else
result = semrm(target_key, 0);
if (result < 0) {
@ -149,15 +154,17 @@ int main(argc, argv)
}
break;
case ':':
errx(1, "option -%c requires an argument", optopt);
fprintf(stderr, "option -%c requires an argument\n", optopt);
usage();
case '?':
errx(1, "unrecognized option: -%c", optopt);
fprintf(stderr, "unrecognized option: -%c\n", optopt);
usage();
}
}
if (optind != argc) {
fprintf(stderr, "usage: ipcrm [ [-q msqid] [-m shmid] [-s semid]\n");
fprintf(stderr, " [-Q msgkey] [-M shmkey] [-S semkey] ...]\n");
exit(1);
fprintf(stderr, "unknown argument: %s\n", argv[optind]);
usage();
}
exit(errflg);
}