17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*d4188195Sraf * Common Development and Distribution License (the "License").
6*d4188195Sraf * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate *
87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate * and limitations under the License.
127c478bd9Sstevel@tonic-gate *
137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate *
197c478bd9Sstevel@tonic-gate * CDDL HEADER END
207c478bd9Sstevel@tonic-gate */
21*d4188195Sraf
227c478bd9Sstevel@tonic-gate /*
23*d4188195Sraf * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
247c478bd9Sstevel@tonic-gate * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
277c478bd9Sstevel@tonic-gate /* Copyright (c) 1984 AT&T */
287c478bd9Sstevel@tonic-gate /* All Rights Reserved */
297c478bd9Sstevel@tonic-gate
305d54f3d8Smuffin #pragma ident "%Z%%M% %I% %E% SMI"
317c478bd9Sstevel@tonic-gate
32*d4188195Sraf #include <sys/syscall.h>
335d54f3d8Smuffin #include <stdarg.h>
347c478bd9Sstevel@tonic-gate #include <sys/types.h>
357c478bd9Sstevel@tonic-gate #include <sys/ipc.h>
367c478bd9Sstevel@tonic-gate #include <sys/shm.h>
375d54f3d8Smuffin #include <errno.h>
387c478bd9Sstevel@tonic-gate
397c478bd9Sstevel@tonic-gate
407c478bd9Sstevel@tonic-gate /* shmsys dispatch argument */
417c478bd9Sstevel@tonic-gate #define SHMAT 0
427c478bd9Sstevel@tonic-gate #define SHMCTL 1
437c478bd9Sstevel@tonic-gate #define SHMDT 2
447c478bd9Sstevel@tonic-gate #define SHMGET 3
457c478bd9Sstevel@tonic-gate
467c478bd9Sstevel@tonic-gate struct shmid_sv {
477c478bd9Sstevel@tonic-gate struct ipc_perm shm_perm;
487c478bd9Sstevel@tonic-gate int shm_segsz;
497c478bd9Sstevel@tonic-gate struct anon_map *shm_amp;
507c478bd9Sstevel@tonic-gate unsigned short shm_lkcnt;
517c478bd9Sstevel@tonic-gate char pad[2];
527c478bd9Sstevel@tonic-gate short shm_lpid;
537c478bd9Sstevel@tonic-gate short shm_cpid;
547c478bd9Sstevel@tonic-gate unsigned short shm_nattch;
557c478bd9Sstevel@tonic-gate unsigned short shm_cnattch;
567c478bd9Sstevel@tonic-gate time_t shm_atime;
577c478bd9Sstevel@tonic-gate time_t shm_dtime;
587c478bd9Sstevel@tonic-gate time_t shm_ctime;
597c478bd9Sstevel@tonic-gate };
607c478bd9Sstevel@tonic-gate
617c478bd9Sstevel@tonic-gate
627c478bd9Sstevel@tonic-gate char *
shmat(int shmid,char * shmaddr,int shmflg)635d54f3d8Smuffin shmat(int shmid, char *shmaddr, int shmflg)
647c478bd9Sstevel@tonic-gate {
657c478bd9Sstevel@tonic-gate return ((char *)_syscall(SYS_shmsys, SHMAT, shmid, shmaddr, shmflg));
667c478bd9Sstevel@tonic-gate }
677c478bd9Sstevel@tonic-gate
685d54f3d8Smuffin int
shmctl(int shmid,int cmd,struct shmid_ds * buf)695d54f3d8Smuffin shmctl(int shmid, int cmd, struct shmid_ds *buf)
707c478bd9Sstevel@tonic-gate {
717c478bd9Sstevel@tonic-gate struct shmid_sv n_buf;
727c478bd9Sstevel@tonic-gate int ret;
737c478bd9Sstevel@tonic-gate
747c478bd9Sstevel@tonic-gate if (buf == (struct shmid_ds *)-1) {
757c478bd9Sstevel@tonic-gate errno = EFAULT;
767c478bd9Sstevel@tonic-gate return (-1);
777c478bd9Sstevel@tonic-gate }
787c478bd9Sstevel@tonic-gate
797c478bd9Sstevel@tonic-gate if (buf == 0) {
807c478bd9Sstevel@tonic-gate ret = _syscall(SYS_shmsys, SHMCTL, shmid, cmd, 0);
817c478bd9Sstevel@tonic-gate } else {
827c478bd9Sstevel@tonic-gate n_buf.shm_perm = buf->shm_perm;
837c478bd9Sstevel@tonic-gate n_buf.shm_segsz = buf->shm_segsz;
847c478bd9Sstevel@tonic-gate n_buf.shm_amp = buf->shm_amp;
857c478bd9Sstevel@tonic-gate n_buf.shm_lpid = buf->shm_lpid;
867c478bd9Sstevel@tonic-gate n_buf.shm_cpid = buf->shm_cpid;
877c478bd9Sstevel@tonic-gate n_buf.shm_nattch = buf->shm_nattch;
887c478bd9Sstevel@tonic-gate n_buf.shm_atime = buf->shm_atime;
897c478bd9Sstevel@tonic-gate n_buf.shm_dtime = buf->shm_dtime;
907c478bd9Sstevel@tonic-gate n_buf.shm_ctime = buf->shm_ctime;
917c478bd9Sstevel@tonic-gate n_buf.shm_lkcnt = 0;
927c478bd9Sstevel@tonic-gate n_buf.shm_cnattch = 0;
937c478bd9Sstevel@tonic-gate
947c478bd9Sstevel@tonic-gate ret = _syscall(SYS_shmsys, SHMCTL, shmid, cmd, &n_buf);
957c478bd9Sstevel@tonic-gate
967c478bd9Sstevel@tonic-gate buf->shm_perm = n_buf.shm_perm;
977c478bd9Sstevel@tonic-gate buf->shm_segsz = n_buf.shm_segsz;
987c478bd9Sstevel@tonic-gate buf->shm_amp = n_buf.shm_amp;
997c478bd9Sstevel@tonic-gate buf->shm_lpid = n_buf.shm_lpid;
1007c478bd9Sstevel@tonic-gate buf->shm_cpid = n_buf.shm_cpid;
1017c478bd9Sstevel@tonic-gate buf->shm_nattch = n_buf.shm_nattch;
1027c478bd9Sstevel@tonic-gate buf->shm_atime = n_buf.shm_atime;
1037c478bd9Sstevel@tonic-gate buf->shm_dtime = n_buf.shm_dtime;
1047c478bd9Sstevel@tonic-gate buf->shm_ctime = n_buf.shm_ctime;
1057c478bd9Sstevel@tonic-gate }
1067c478bd9Sstevel@tonic-gate
1077c478bd9Sstevel@tonic-gate return (ret);
1087c478bd9Sstevel@tonic-gate }
1097c478bd9Sstevel@tonic-gate
1105d54f3d8Smuffin int
shmdt(char * shmaddr)1115d54f3d8Smuffin shmdt(char *shmaddr)
1127c478bd9Sstevel@tonic-gate {
1137c478bd9Sstevel@tonic-gate return (_syscall(SYS_shmsys, SHMDT, shmaddr));
1147c478bd9Sstevel@tonic-gate }
1157c478bd9Sstevel@tonic-gate
1165d54f3d8Smuffin int
shmget(key_t key,int size,int shmflg)1175d54f3d8Smuffin shmget(key_t key, int size, int shmflg)
1187c478bd9Sstevel@tonic-gate {
1197c478bd9Sstevel@tonic-gate return (_syscall(SYS_shmsys, SHMGET, key, size, shmflg));
1207c478bd9Sstevel@tonic-gate }
1217c478bd9Sstevel@tonic-gate
1225d54f3d8Smuffin int
shmsys(int sysnum,...)1235d54f3d8Smuffin shmsys(int sysnum, ...)
1247c478bd9Sstevel@tonic-gate {
1257c478bd9Sstevel@tonic-gate va_list ap;
1267c478bd9Sstevel@tonic-gate int shmid, shmflg, cmd, size;
1277c478bd9Sstevel@tonic-gate char *shmaddr;
1287c478bd9Sstevel@tonic-gate struct shmid_ds *buf;
1297c478bd9Sstevel@tonic-gate key_t key;
1307c478bd9Sstevel@tonic-gate
1315d54f3d8Smuffin va_start(ap, sysnum);
1327c478bd9Sstevel@tonic-gate switch (sysnum) {
1337c478bd9Sstevel@tonic-gate case SHMAT:
1347c478bd9Sstevel@tonic-gate shmid = va_arg(ap, int);
1357c478bd9Sstevel@tonic-gate shmaddr = va_arg(ap, char *);
1367c478bd9Sstevel@tonic-gate shmflg = va_arg(ap, int);
1375d54f3d8Smuffin va_end(ap);
1387c478bd9Sstevel@tonic-gate return ((int)shmat(shmid, shmaddr, shmflg));
1397c478bd9Sstevel@tonic-gate case SHMCTL:
1407c478bd9Sstevel@tonic-gate shmid = va_arg(ap, int);
1417c478bd9Sstevel@tonic-gate cmd = va_arg(ap, int);
1427c478bd9Sstevel@tonic-gate buf = va_arg(ap, struct shmid_ds *);
1435d54f3d8Smuffin va_end(ap);
1447c478bd9Sstevel@tonic-gate return (shmctl(shmid, cmd, buf));
1457c478bd9Sstevel@tonic-gate case SHMDT:
1467c478bd9Sstevel@tonic-gate shmaddr = va_arg(ap, char *);
1475d54f3d8Smuffin va_end(ap);
1487c478bd9Sstevel@tonic-gate return (shmdt(shmaddr));
1497c478bd9Sstevel@tonic-gate case SHMGET:
1507c478bd9Sstevel@tonic-gate key = va_arg(ap, key_t);
1517c478bd9Sstevel@tonic-gate size = va_arg(ap, int);
1527c478bd9Sstevel@tonic-gate shmflg = va_arg(ap, int);
1535d54f3d8Smuffin va_end(ap);
1547c478bd9Sstevel@tonic-gate return (shmget(key, size, shmflg));
1557c478bd9Sstevel@tonic-gate }
1565d54f3d8Smuffin va_end(ap);
1575d54f3d8Smuffin return (-1);
1587c478bd9Sstevel@tonic-gate }
159