Add regression tests for sysvipc.

Submitted by: Hiten Pandya <hiten@uk.FreeBSD.org>
Obtained from: NetBSD

10 files changed, 1079 insertions, 0 deletions

diff --git a/tools/regression/README b/tools/regression/README
index 7da4573..40595ec 100644
--- a/tools/regression/README
+++ b/tools/regression/README
@@ -23,3 +23,6 @@ ia64_unaligned	Tests unaligned reads on the IA64
 nfsmmap		Some tests to exercise some tricky cases in NFS and mmap
 p1003_1b	Exercise 1003.1B scheduler
 fsx		General filesystem exerciser
+sysvmsg 	SysV IPC Message Queue Regression Utility
+sysvsem 	SysV IPC Semaphore Regression Utility
+sysvshm 	SysV IPC Shared Memory Regression Utility
diff --git a/tools/regression/sysvmsg/Makefile b/tools/regression/sysvmsg/Makefile
new file mode 100644
index 0000000..45f7b72
--- /dev/null
+++ b/tools/regression/sysvmsg/Makefile
@@ -0,0 +1,15 @@
+# $FreeBSD$
+# SysV Message Queue Regression Utility
+# Obtained from: $NetBSD: Makefile,v 1.3 2002/03/05 21:56:59 thorpej Exp $
+
+PROG=	msgtest
+NOMAN=	yes
+
+regress:
+	@if ./msgtest ./msgtest; then \
+		echo "PASS"; \
+	else \
+		echo "FAIL"; \
+	fi
+
+.include <bsd.prog.mk>
diff --git a/tools/regression/sysvmsg/README b/tools/regression/sysvmsg/README
new file mode 100644
index 0000000..f115b99
--- /dev/null
+++ b/tools/regression/sysvmsg/README
@@ -0,0 +1,13 @@
+$FreeBSD$
+
+SysV IPC Message Queue Regression Utility.
+
+This regression utility will test the SysV Message Queue facility
+in FreeBSD.  You can start the test by running ``make regress'', after
+running ``make''.
+
+Obtained from: The NetBSD Foundation.
+Date of port: 13 August 2002
+
+  -- Hiten Pandya
+  -- hiten@uk.FreeBSD.org
diff --git a/tools/regression/sysvmsg/msgtest.c b/tools/regression/sysvmsg/msgtest.c
new file mode 100644
index 0000000..37981d9
--- /dev/null
+++ b/tools/regression/sysvmsg/msgtest.c
@@ -0,0 +1,347 @@
+/*-
+ * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
+ * NASA Ames Research Center.
+ *
+ * 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 NetBSD
+ *	Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ * 
+ * Obtained from: $NetBSD: msgtest.c,v 1.7 2002/07/20 08:36:25 grant Exp $
+ * $FreeBSD$
+ */
+
+/*
+ * Test the SVID-compatible Message Queue facility.
+ */
+
+#include <sys/param.h>
+#include <sys/ipc.h>
+#include <sys/msg.h>
+#include <sys/wait.h>
+
+#include <err.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+void	print_msqid_ds (struct msqid_ds *, mode_t);
+void	sigsys_handler(int);
+void	sigchld_handler (int);
+void	cleanup (void);
+void	receiver (void);
+void	usage (void);
+
+#define	MESSAGE_TEXT_LEN	255
+
+/*
+ * Define it as test_mymsg because we already have struct mymsg and we dont
+ * want to conflict with it.  Also, regression fails when the default mymsg
+ * struct is used, because mtext[] array is '1', so the passed string cannot
+ * be processed.
+ */
+struct test_mymsg {
+	long	mtype;
+	char	mtext[MESSAGE_TEXT_LEN];
+};
+
+const char *m1_str = "California is overrated.";
+const char *m2_str = "The quick brown fox jumped over the lazy dog.";
+
+#define	MTYPE_1		1
+#define	MTYPE_1_ACK	2
+
+#define	MTYPE_2		3
+#define	MTYPE_2_ACK	4
+
+int	sender_msqid = -1;
+pid_t	child_pid;
+
+key_t	msgkey;
+
+int
+main(int argc, char *argv[])
+{
+	struct sigaction sa;
+	struct msqid_ds m_ds;
+	struct test_mymsg m;
+	sigset_t sigmask;
+
+	if (argc != 2)
+		usage();
+
+	/*
+	 * Install a SIGSYS handler so that we can exit gracefully if
+	 * System V Message Queue support isn't in the kernel.
+	 */
+	sa.sa_handler = sigsys_handler;
+	sigemptyset(&sa.sa_mask);
+	sa.sa_flags = 0;
+	if (sigaction(SIGSYS, &sa, NULL) == -1)
+		err(1, "sigaction SIGSYS");
+
+	/*
+	 * Install and SIGCHLD handler to deal with all possible exit
+	 * conditions of the receiver.
+	 */
+	sa.sa_handler = sigchld_handler;
+	sigemptyset(&sa.sa_mask);
+	sa.sa_flags = 0;
+	if (sigaction(SIGCHLD, &sa, NULL) == -1)
+		err(1, "sigaction SIGCHLD");
+
+	msgkey = ftok(argv[1], 4160);
+
+	/*
+	 * Initialize child_pid to ourselves to that the cleanup function
+	 * works before we create the receiver.
+	 */
+	child_pid = getpid();
+
+	/*
+	 * Make sure that when the sender exits, the message queue is
+	 * removed.
+	 */
+	if (atexit(cleanup) == -1)
+		err(1, "atexit");
+
+	if ((sender_msqid = msgget(msgkey, IPC_CREAT | 0640)) == -1)
+		err(1, "msgget");
+
+	if (msgctl(sender_msqid, IPC_STAT, &m_ds) == -1)
+		err(1, "msgctl IPC_STAT");
+
+	print_msqid_ds(&m_ds, 0640);
+
+	m_ds.msg_perm.mode = (m_ds.msg_perm.mode & ~0777) | 0600;
+
+	if (msgctl(sender_msqid, IPC_SET, &m_ds) == -1)
+		err(1, "msgctl IPC_SET");
+
+	bzero(&m_ds, sizeof m_ds);
+
+	if (msgctl(sender_msqid, IPC_STAT, &m_ds) == -1)
+		err(1, "msgctl IPC_STAT");
+
+	if ((m_ds.msg_perm.mode & 0777) != 0600)
+		err(1, "IPC_SET of mode didn't hold");
+
+	print_msqid_ds(&m_ds, 0600);
+
+	switch ((child_pid = fork())) {
+	case -1:
+		err(1, "fork");
+		/* NOTREACHED */
+
+	case 0:
+		receiver();
+		break;
+
+	default:
+		break;
+	}
+
+	/*
+	 * Send the first message to the receiver and wait for the ACK.
+	 */
+	m.mtype = MTYPE_1;
+	strcpy(m.mtext, m1_str);
+	if (msgsnd(sender_msqid, &m, sizeof(m), 0) == -1)
+		err(1, "sender: msgsnd 1");
+
+	if (msgrcv(sender_msqid, &m, sizeof(m), MTYPE_1_ACK, 0) != sizeof(m))
+		err(1, "sender: msgrcv 1 ack");
+
+	print_msqid_ds(&m_ds, 0600);
+
+	/*
+	 * Send the second message to the receiver and wait for the ACK.
+	 */
+	m.mtype = MTYPE_2;
+	strcpy(m.mtext, m2_str);
+	if (msgsnd(sender_msqid, &m, sizeof(m), 0) == -1)
+		err(1, "sender: msgsnd 2");
+
+	if (msgrcv(sender_msqid, &m, sizeof(m), MTYPE_2_ACK, 0) != sizeof(m))
+		err(1, "sender: msgrcv 2 ack");
+
+	/*
+	 * Suspend forever; when we get SIGCHLD, the handler will exit.
+	 */
+	sigemptyset(&sigmask);
+	(void) sigsuspend(&sigmask);
+
+	/*
+	 * ...and any other signal is an unexpected error.
+	 */
+	errx(1, "sender: received unexpected signal");
+}
+
+void
+sigsys_handler(int signo)
+{
+
+	errx(1, "System V Message Queue support is not present in the kernel");
+}
+
+void
+sigchld_handler(int signo)
+{
+	struct msqid_ds m_ds;
+	int cstatus;
+
+	/*
+	 * Reap the child; if it exited successfully, then the test passed!
+	 */
+	if (waitpid(child_pid, &cstatus, 0) != child_pid)
+		err(1, "waitpid");
+
+	if (WIFEXITED(cstatus) == 0)
+		errx(1, "receiver exited abnormally");
+
+	if (WEXITSTATUS(cstatus) != 0)
+		errx(1, "receiver exited with status %d",
+		    WEXITSTATUS(cstatus));
+
+	/*
+	 * If we get here, the child has exited normally, and thus
+	 * we should exit normally too.  First, tho, we print out
+	 * the final stats for the message queue.
+	 */
+
+	if (msgctl(sender_msqid, IPC_STAT, &m_ds) == -1)
+		err(1, "msgctl IPC_STAT");
+
+	print_msqid_ds(&m_ds, 0600);
+
+	exit(0);
+}
+
+void
+cleanup()
+{
+
+	/*
+	 * If we're the sender, and it exists, remove the message queue.
+	 */
+	if (child_pid != 0 && sender_msqid != -1) {
+		if (msgctl(sender_msqid, IPC_RMID, NULL) == -1)
+			warn("msgctl IPC_RMID");
+	}
+}
+
+void
+print_msqid_ds(struct msqid_ds *mp, mode_t mode)
+{
+	uid_t uid = geteuid();
+	gid_t gid = getegid();
+
+	printf("PERM: uid %d, gid %d, cuid %d, cgid %d, mode 0%o\n",
+	    mp->msg_perm.uid, mp->msg_perm.gid,
+	    mp->msg_perm.cuid, mp->msg_perm.cgid,
+	    mp->msg_perm.mode & 0777);
+
+	printf("qnum %lu, qbytes %lu, lspid %d, lrpid %d\n",
+	    mp->msg_qnum, (u_long)mp->msg_qbytes, mp->msg_lspid,
+	    mp->msg_lrpid);
+
+	printf("stime: %s", ctime(&mp->msg_stime));
+	printf("rtime: %s", ctime(&mp->msg_rtime));
+	printf("ctime: %s", ctime(&mp->msg_ctime));
+
+	/*
+	 * Sanity check a few things.
+	 */
+
+	if (mp->msg_perm.uid != uid || mp->msg_perm.cuid != uid)
+		errx(1, "uid mismatch");
+
+	if (mp->msg_perm.gid != gid || mp->msg_perm.cgid != gid)
+		errx(1, "gid mismatch");
+
+	if ((mp->msg_perm.mode & 0777) != mode)
+		errx(1, "mode mismatch");
+}
+
+void
+usage()
+{
+
+	fprintf(stderr, "usage: %s keypath\n", getprogname());
+	exit(1);
+}
+
+void
+receiver()
+{
+	struct test_mymsg m;
+	int msqid;
+
+	if ((msqid = msgget(msgkey, 0)) == -1)
+		err(1, "receiver: msgget");
+
+	/*
+	 * Receive the first message, print it, and send an ACK.
+	 */
+
+	if (msgrcv(msqid, &m, sizeof(m), MTYPE_1, 0) != sizeof(m))
+		err(1, "receiver: msgrcv 1");
+
+	printf("%s\n", m.mtext);
+	if (strcmp(m.mtext, m1_str) != 0)
+		err(1, "receiver: message 1 data isn't correct");
+
+	m.mtype = MTYPE_1_ACK;
+
+	if (msgsnd(msqid, &m, sizeof(m), 0) == -1)
+		err(1, "receiver: msgsnd ack 1");
+
+	/*
+	 * Receive the second message, print it, and send an ACK.
+	 */
+
+	if (msgrcv(msqid, &m, sizeof(m), MTYPE_2, 0) != sizeof(m))
+		err(1, "receiver: msgrcv 2");
+
+	printf("%s\n", m.mtext);
+	if (strcmp(m.mtext, m2_str) != 0)
+		err(1, "receiver: message 2 data isn't correct");
+
+	m.mtype = MTYPE_2_ACK;
+
+	if (msgsnd(msqid, &m, sizeof(m), 0) == -1)
+		err(1, "receiver: msgsnd ack 2");
+
+	exit(0);
+}
diff --git a/tools/regression/sysvsem/Makefile b/tools/regression/sysvsem/Makefile
new file mode 100644
index 0000000..f5a3726
--- /dev/null
+++ b/tools/regression/sysvsem/Makefile
@@ -0,0 +1,15 @@
+# $FreeBSD$
+# SysV Semaphores Regression Utility 
+# Obtained from: $NetBSD: Makefile,v 1.3 2002/03/05 21:57:00 thorpej Exp $
+
+PROG=	semtest
+NOMAN=	yes
+
+regress:
+	@if ./semtest ./semtest; then \
+		echo "PASS"; \
+	else \
+		echo "FAIL"; \
+	fi
+
+.include <bsd.prog.mk>
diff --git a/tools/regression/sysvsem/README b/tools/regression/sysvsem/README
new file mode 100644
index 0000000..33b9706
--- /dev/null
+++ b/tools/regression/sysvsem/README
@@ -0,0 +1,13 @@
+$FreeBSD$
+
+SysV IPC Semaphore Regression Utility.
+
+This regression utility will test the SysV semaphore functionality
+in FreeBSD.  You can start the test by running ``make regress'', after
+running ``make''.
+
+Obtained from: NetBSD Foundation Inc.
+Date of port: 13 August 2002
+
+  -- Hiten Pandya
+  -- hiten@uk.FreeBSD.org
diff --git a/tools/regression/sysvsem/semtest.c b/tools/regression/sysvsem/semtest.c
new file mode 100644
index 0000000..83f73e9
--- /dev/null
+++ b/tools/regression/sysvsem/semtest.c
@@ -0,0 +1,348 @@
+/*-
+ * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
+ * NASA Ames Research Center.
+ *
+ * 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 NetBSD
+ *	Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ *
+ * Obtained from: $NetBSD: semtest.c,v 1.4 2002/07/20 08:36:25 grant Exp $
+ * $FreeBSD$
+ */
+
+/*
+ * Test the SVID-compatible Semaphore facility.
+ */
+
+#include <sys/param.h>
+#include <sys/ipc.h>
+#include <sys/sem.h>
+#include <sys/wait.h>
+
+#include <err.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+int	main (int, char *[]);
+void	print_semid_ds (struct semid_ds *, mode_t);
+void	sigsys_handler (int);
+void	sigchld_handler(int);
+void	cleanup (void);
+void	waiter (void);
+void	usage (void);
+
+int	sender_semid = -1;
+pid_t	child_pid;
+int	child_count;
+int	signal_was_sigchld;
+
+key_t	semkey;
+
+/*
+ * This is the original semun union used by the sysvsem utility.
+ * It is deliberately kept here under #if 0'ed condition for future
+ * reference. PLEASE DO NOT REMOVE.  The {SET,GET}ALL in FreeBSD
+ * are signed values, so the default version in sys/sem.h suffices.
+ */
+#if 0
+union semun {
+	int	val;		/* value for SETVAL */
+	struct	semid_ds *buf;	/* buffer for IPC_{STAT,SET} */
+	u_short	*array;		/* array for GETALL & SETALL */
+};
+#endif
+
+int
+main(int argc, char *argv[])
+{
+	struct sigaction sa;
+	union semun sun;
+	struct semid_ds s_ds;
+	sigset_t sigmask;
+	int i;
+
+	if (argc != 2)
+		usage();
+
+	/*
+	 * Install a SIGSYS handler so that we can exit gracefully if
+	 * System V Semaphore support isn't in the kernel.
+	 */
+	sa.sa_handler = sigsys_handler;
+	sigemptyset(&sa.sa_mask);
+	sa.sa_flags = 0;
+	if (sigaction(SIGSYS, &sa, NULL) == -1)
+		err(1, "sigaction SIGSYS");
+
+	/*
+	 * Install and SIGCHLD handler to deal with all possible exit
+	 * conditions of the receiver.
+	 */
+	sa.sa_handler = sigchld_handler;
+	sigemptyset(&sa.sa_mask);
+	sa.sa_flags = 0;
+	if (sigaction(SIGCHLD, &sa, NULL) == -1)
+		err(1, "sigaction SIGCHLD");
+
+	semkey = ftok(argv[1], 4160);
+
+	/*
+	 * Initialize child_pid to ourselves to that the cleanup function
+	 * works before we create the receiver.
+	 */
+	child_pid = getpid();
+
+	/*
+	 * Make sure that when the sender exits, the message queue is
+	 * removed.
+	 */
+	if (atexit(cleanup) == -1)
+		err(1, "atexit");
+
+	if ((sender_semid = semget(semkey, 1, IPC_CREAT | 0640)) == -1)
+		err(1, "semget");
+
+	
+	sun.buf = &s_ds;
+	if (semctl(sender_semid, 0, IPC_STAT, sun) == -1)
+		err(1, "semctl IPC_STAT");
+
+	print_semid_ds(&s_ds, 0640);
+
+	s_ds.sem_perm.mode = (s_ds.sem_perm.mode & ~0777) | 0600;
+
+	sun.buf = &s_ds;
+	if (semctl(sender_semid, 0, IPC_SET, sun) == -1)
+		err(1, "semctl IPC_SET");
+
+	memset(&s_ds, 0, sizeof(s_ds));
+
+	sun.buf = &s_ds;
+	if (semctl(sender_semid, 0, IPC_STAT, sun) == -1)
+		err(1, "semctl IPC_STAT");
+
+	if ((s_ds.sem_perm.mode & 0777) != 0600)
+		err(1, "IPC_SET of mode didn't hold");
+
+	print_semid_ds(&s_ds, 0600);
+
+	for (child_count = 0; child_count < 5; child_count++) {
+		switch ((child_pid = fork())) {
+		case -1:
+			err(1, "fork");
+			/* NOTREACHED */
+
+		case 0:
+			waiter();
+			break;
+
+		default:
+			break;
+		}
+	}
+
+	/*
+	 * Wait for all of the waiters to be attempting to acquire the
+	 * semaphore.
+	 */
+	for (;;) {
+		i = semctl(sender_semid, 0, GETNCNT);
+		if (i == -1)
+			err(1, "semctl GETNCNT");
+		if (i == 5)
+			break;
+	}
+
+	/*
+	 * Now set the thundering herd in motion by initializing the
+	 * semaphore to the value 1.
+	 */
+	sun.val = 1;
+	if (semctl(sender_semid, 0, SETVAL, sun) == -1)
+		err(1, "sender: semctl SETVAL to 1");
+
+	/*
+	 * Suspend forever; when we get SIGCHLD, the handler will exit.
+	 */
+	sigemptyset(&sigmask);
+	for (;;) {
+		(void) sigsuspend(&sigmask);
+		if (signal_was_sigchld)
+			signal_was_sigchld = 0;
+		else
+			break;
+	}
+
+	/*
+	 * ...and any other signal is an unexpected error.
+	 */
+	errx(1, "sender: received unexpected signal");
+}
+
+void
+sigsys_handler(int signo)
+{
+
+	errx(1, "System V Semaphore support is not present in the kernel");
+}
+
+void
+sigchld_handler(int signo)
+{
+	union semun sun;
+	struct semid_ds s_ds;
+	int cstatus;
+
+	/*
+	 * Reap the child; if it exited successfully, then we're on the
+	 * right track!
+	 */
+	if (wait(&cstatus) == -1)
+		err(1, "wait");
+
+	if (WIFEXITED(cstatus) == 0)
+		errx(1, "receiver exited abnormally");
+
+	if (WEXITSTATUS(cstatus) != 0)
+		errx(1, "receiver exited with status %d",
+		    WEXITSTATUS(cstatus));
+
+	/*
+	 * If we get here, the child has exited normally, and we should
+	 * decrement the child count.  If the child_count reaches 0, we
+	 * should exit.
+	 */
+
+	sun.buf = &s_ds;
+	if (semctl(sender_semid, 0, IPC_STAT, sun) == -1)
+		err(1, "semctl IPC_STAT");
+
+	print_semid_ds(&s_ds, 0600);
+
+	if (--child_count != 0) {
+		signal_was_sigchld = 1;
+		return;
+	}
+
+	exit(0);
+}
+
+void
+cleanup()
+{
+
+	/*
+	 * If we're the sender, and it exists, remove the message queue.
+	 */
+	if (child_pid != 0 && sender_semid != -1) {
+		if (semctl(sender_semid, 0, IPC_RMID) == -1)
+			warn("semctl IPC_RMID");
+	}
+}
+
+void
+print_semid_ds(struct semid_ds *sp, mode_t mode)
+{
+	uid_t uid = geteuid();
+	gid_t gid = getegid();
+
+	printf("PERM: uid %d, gid %d, cuid %d, cgid %d, mode 0%o\n",
+	    sp->sem_perm.uid, sp->sem_perm.gid,
+	    sp->sem_perm.cuid, sp->sem_perm.cgid,
+	    sp->sem_perm.mode & 0777);
+
+	printf("nsems %u\n", sp->sem_nsems);
+
+	printf("otime: %s", ctime(&sp->sem_otime));
+	printf("ctime: %s", ctime(&sp->sem_ctime));
+
+	/*
+	 * Sanity check a few things.
+	 */
+
+	if (sp->sem_perm.uid != uid || sp->sem_perm.cuid != uid)
+		errx(1, "uid mismatch");
+
+	if (sp->sem_perm.gid != gid || sp->sem_perm.cgid != gid)
+		errx(1, "gid mismatch");
+
+	if ((sp->sem_perm.mode & 0777) != mode)
+		errx(1, "mode mismatch %o != %o",
+		    (sp->sem_perm.mode & 0777), mode);
+}
+
+void
+usage()
+{
+
+	fprintf(stderr, "usage: %s keypath\n", getprogname());
+	exit(1);
+}
+
+void
+waiter()
+{
+	struct sembuf s;
+	int semid;
+
+	if ((semid = semget(semkey, 1, 0)) == -1)
+		err(1, "waiter: semget");
+
+	/*
+	 * Attempt to acquire the semaphore.
+	 */
+	s.sem_num = 0;
+	s.sem_op = -1;
+	s.sem_flg = SEM_UNDO;
+
+	if (semop(semid, &s, 1) == -1)
+		err(1, "waiter: semop -1");
+
+	printf("WOO!  GOT THE SEMAPHORE!\n");
+	sleep(1);
+
+	/*
+	 * Release the semaphore and exit.
+	 */
+	s.sem_num = 0;
+	s.sem_op = 1;
+	s.sem_flg = SEM_UNDO;
+
+	if (semop(semid, &s, 1) == -1)
+		err(1, "waiter: semop +1");
+
+	exit(0);
+}
diff --git a/tools/regression/sysvshm/Makefile b/tools/regression/sysvshm/Makefile
new file mode 100644
index 0000000..9905385
--- /dev/null
+++ b/tools/regression/sysvshm/Makefile
@@ -0,0 +1,15 @@
+# $FreeBSD$
+# SysV Shared Memory Regression Utility
+# Obtained from: $NetBSD: Makefile,v 1.3 2002/03/05 21:57:00 thorpej Exp $
+
+PROG=	shmtest
+NOMAN=	yes
+
+regress:
+	@if ./shmtest ./shmtest; then \
+		echo "PASS"; \
+	else \
+		echo "FAIL"; \
+	fi
+
+.include <bsd.prog.mk>
diff --git a/tools/regression/sysvshm/README b/tools/regression/sysvshm/README
new file mode 100644
index 0000000..4e0125e
--- /dev/null
+++ b/tools/regression/sysvshm/README
@@ -0,0 +1,13 @@
+$FreeBSD$
+
+SysV IPC Shared Memory Regression Utility.
+
+This regression utility will test the SysV Shared Memory facility
+in FreeBSD.  You can start the test by running ``make regress'', after
+running ``make''.
+
+Obtained from: The NetBSD Foundation.
+Date of port: 13 August 2002
+
+  -- Hiten Pandya
+  -- hiten@uk.FreeBSD.org
diff --git a/tools/regression/sysvshm/shmtest.c b/tools/regression/sysvshm/shmtest.c
new file mode 100644
index 0000000..22f626e
--- /dev/null
+++ b/tools/regression/sysvshm/shmtest.c
@@ -0,0 +1,297 @@
+/*-
+ * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
+ * NASA Ames Research Center.
+ *
+ * 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 NetBSD
+ *	Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ *
+ * Obtained from: $NetBSD: shmtest.c,v 1.3 2002/07/20 08:36:26 grant Exp $
+ * $FreeBSD$
+ */
+
+/*
+ * Test the SVID-compatible Shared Memory facility.
+ */
+
+#include <sys/param.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <sys/wait.h>
+
+#include <err.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+int	main __P((int, char *[]));
+void	print_shmid_ds __P((struct shmid_ds *, mode_t));
+void	sigsys_handler __P((int));
+void	sigchld_handler __P((int));
+void	cleanup __P((void));
+void	receiver __P((void));
+void	usage __P((void));
+
+const char *m_str = "The quick brown fox jumped over the lazy dog.";
+
+int	sender_shmid = -1;
+pid_t	child_pid;
+
+key_t	shmkey;
+
+size_t	pgsize;
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	struct sigaction sa;
+	struct shmid_ds s_ds;
+	sigset_t sigmask;
+	char *shm_buf;
+
+	if (argc != 2)
+		usage();
+
+	/*
+	 * Install a SIGSYS handler so that we can exit gracefully if
+	 * System V Shared Memory support isn't in the kernel.
+	 */
+	sa.sa_handler = sigsys_handler;
+	sigemptyset(&sa.sa_mask);
+	sa.sa_flags = 0;
+	if (sigaction(SIGSYS, &sa, NULL) == -1)
+		err(1, "sigaction SIGSYS");
+
+	/*
+	 * Install and SIGCHLD handler to deal with all possible exit
+	 * conditions of the receiver.
+	 */
+	sa.sa_handler = sigchld_handler;
+	sigemptyset(&sa.sa_mask);
+	sa.sa_flags = 0;
+	if (sigaction(SIGCHLD, &sa, NULL) == -1)
+		err(1, "sigaction SIGCHLD");
+
+	pgsize = sysconf(_SC_PAGESIZE);
+
+	shmkey = ftok(argv[1], 4160);
+
+	/*
+	 * Initialize child_pid to ourselves to that the cleanup function
+	 * works before we create the receiver.
+	 */
+	child_pid = getpid();
+
+	/*
+	 * Make sure that when the sender exits, the message queue is
+	 * removed.
+	 */
+	if (atexit(cleanup) == -1)
+		err(1, "atexit");
+
+	if ((sender_shmid = shmget(shmkey, pgsize, IPC_CREAT | 0640)) == -1)
+		err(1, "shmget");
+
+	if (shmctl(sender_shmid, IPC_STAT, &s_ds) == -1)
+		err(1, "shmctl IPC_STAT");
+
+	print_shmid_ds(&s_ds, 0640);
+
+	s_ds.shm_perm.mode = (s_ds.shm_perm.mode & ~0777) | 0600;
+
+	if (shmctl(sender_shmid, IPC_SET, &s_ds) == -1)
+		err(1, "shmctl IPC_SET");
+
+	memset(&s_ds, 0, sizeof(s_ds));
+
+	if (shmctl(sender_shmid, IPC_STAT, &s_ds) == -1)
+		err(1, "shmctl IPC_STAT");
+
+	if ((s_ds.shm_perm.mode & 0777) != 0600)
+		err(1, "IPC_SET of mode didn't hold");
+
+	print_shmid_ds(&s_ds, 0600);
+
+	if ((shm_buf = shmat(sender_shmid, NULL, 0)) == (void *) -1)
+		err(1, "sender: shmat");
+
+	/*
+	 * Write the test pattern into the shared memory buffer.
+	 */
+	strcpy(shm_buf, m_str);
+
+	switch ((child_pid = fork())) {
+	case -1:
+		err(1, "fork");
+		/* NOTREACHED */
+
+	case 0:
+		receiver();
+		break;
+
+	default:
+		break;
+	}
+
+	/*
+	 * Suspend forever; when we get SIGCHLD, the handler will exit.
+	 */
+	sigemptyset(&sigmask);
+	(void) sigsuspend(&sigmask);
+
+	/*
+	 * ...and any other signal is an unexpected error.
+	 */
+	errx(1, "sender: received unexpected signal");
+}
+
+void
+sigsys_handler(signo)
+	int signo;
+{
+
+	errx(1, "System V Shared Memory support is not present in the kernel");
+}
+
+void
+sigchld_handler(signo)
+	int signo;
+{
+	struct shmid_ds s_ds;
+	int cstatus;
+
+	/*
+	 * Reap the child; if it exited successfully, then the test passed!
+	 */
+	if (waitpid(child_pid, &cstatus, 0) != child_pid)
+		err(1, "waitpid");
+
+	if (WIFEXITED(cstatus) == 0)
+		errx(1, "receiver exited abnormally");
+
+	if (WEXITSTATUS(cstatus) != 0)
+		errx(1, "receiver exited with status %d",
+		    WEXITSTATUS(cstatus));
+
+	/*
+	 * If we get here, the child has exited normally, and thus
+	 * we should exit normally too.  First, tho, we print out
+	 * the final stats for the message queue.
+	 */
+
+	if (shmctl(sender_shmid, IPC_STAT, &s_ds) == -1)
+		err(1, "shmctl IPC_STAT");
+
+	print_shmid_ds(&s_ds, 0600);
+
+	exit(0);
+}
+
+void
+cleanup()
+{
+
+	/*
+	 * If we're the sender, and it exists, remove the shared memory area.
+	 */
+	if (child_pid != 0 && sender_shmid != -1) {
+		if (shmctl(sender_shmid, IPC_RMID, NULL) == -1)
+			warn("shmctl IPC_RMID");
+	}
+}
+
+void
+print_shmid_ds(sp, mode)
+	struct shmid_ds *sp;
+	mode_t mode;
+{
+	uid_t uid = geteuid();
+	gid_t gid = getegid();
+
+	printf("PERM: uid %d, gid %d, cuid %d, cgid %d, mode 0%o\n",
+	    sp->shm_perm.uid, sp->shm_perm.gid,
+	    sp->shm_perm.cuid, sp->shm_perm.cgid,
+	    sp->shm_perm.mode & 0777);
+
+	printf("segsz %lu, lpid %d, cpid %d, nattch %u\n",
+	    (u_long)sp->shm_segsz, sp->shm_lpid, sp->shm_cpid,
+	    sp->shm_nattch);
+
+	printf("atime: %s", ctime(&sp->shm_atime));
+	printf("dtime: %s", ctime(&sp->shm_dtime));
+	printf("ctime: %s", ctime(&sp->shm_ctime));
+
+	/*
+	 * Sanity check a few things.
+	 */
+
+	if (sp->shm_perm.uid != uid || sp->shm_perm.cuid != uid)
+		errx(1, "uid mismatch");
+
+	if (sp->shm_perm.gid != gid || sp->shm_perm.cgid != gid)
+		errx(1, "gid mismatch");
+
+	if ((sp->shm_perm.mode & 0777) != mode)
+		errx(1, "mode mismatch");
+}
+
+void
+usage()
+{
+
+	fprintf(stderr, "usage: %s keypath\n", getprogname());
+	exit(1);
+}
+
+void
+receiver()
+{
+	int shmid;
+	void *shm_buf;
+
+	if ((shmid = shmget(shmkey, pgsize, 0)) == -1)
+		err(1, "receiver: shmget");
+
+	if ((shm_buf = shmat(shmid, NULL, 0)) == (void *) -1)
+		err(1, "receiver: shmat");
+
+	printf("%s\n", (const char *)shm_buf);
+	if (strcmp((const char *)shm_buf, m_str) != 0)
+		err(1, "receiver: data isn't correct");
+
+	exit(0);
+}