1 files changed, 339 insertions, 0 deletions

diff --git a/src/regress/lib/libc/sys/t_msgget.c b/src/regress/lib/libc/sys/t_msgget.c
new file mode 100644
index 0000000000..2a9bb4cf3b
--- /dev/null
+++ b/src/regress/lib/libc/sys/t_msgget.c
@@ -0,0 +1,339 @@
+/*      $OpenBSD: t_msgget.c,v 1.1.1.1 2019/11/19 19:57:04 bluhm Exp $  */
+/* $NetBSD: t_msgget.c,v 1.3 2017/10/08 08:31:05 kre Exp $ */
+
+/*-
+ * Copyright (c) 2011 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jukka Ruohonen.
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+#include "macros.h"
+
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: t_msgget.c,v 1.3 2017/10/08 08:31:05 kre Exp $");
+
+#include <sys/msg.h>
+#include <sys/stat.h>
+#include <sys/sysctl.h>
+#include <sys/wait.h>
+
+#include "atf-c.h"
+#include <errno.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sysexits.h>
+#include <time.h>
+#include <unistd.h>
+
+#define MSG_KEY         12345689
+
+static void             clean(void);
+
+static void
+clean(void)
+{
+        int id;
+
+        if ((id = msgget(MSG_KEY, 0)) != -1)
+                (void)msgctl(id, IPC_RMID, 0);
+}
+
+ATF_TC_WITH_CLEANUP(msgget_excl);
+ATF_TC_HEAD(msgget_excl, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test msgget(2) with IPC_EXCL");
+}
+
+ATF_TC_BODY(msgget_excl, tc)
+{
+        int id;
+
+        /*
+         * Create a message queue and re-open it with
+         * O_CREAT and IPC_EXCL set. This should fail.
+         */
+        id = msgget(MSG_KEY, IPC_CREAT | 0600);
+
+        if (id < 0)
+                atf_tc_fail("failed to create message queue");
+
+        errno = 0;
+
+        if (msgget(MSG_KEY, IPC_CREAT | IPC_EXCL | 0600) != -1)
+                atf_tc_fail("msgget(2) failed for IPC_EXCL");
+
+        ATF_REQUIRE(errno == EEXIST);
+
+        /*
+         * However, the same call should succeed
+         * when IPC_EXCL is not set in the flags.
+         */
+        id = msgget(MSG_KEY, IPC_CREAT | 0600);
+
+        if (id < 0)
+                atf_tc_fail("msgget(2) failed to re-open");
+
+        ATF_REQUIRE(msgctl(id, IPC_RMID, 0) == 0);
+}
+
+ATF_TC_CLEANUP(msgget_excl, tc)
+{
+        clean();
+}
+
+ATF_TC_WITH_CLEANUP(msgget_exit);
+ATF_TC_HEAD(msgget_exit, tc)
+{
+        atf_tc_set_md_var(tc, "descr",
+            "Test that XSI message queues are "
+            "not removed when the process exits");
+}
+
+ATF_TC_BODY(msgget_exit, tc)
+{
+        int id, sta;
+        pid_t pid;
+
+        pid = fork();
+        ATF_REQUIRE(pid >= 0);
+
+        if (pid == 0) {
+
+                if (msgget(MSG_KEY, IPC_CREAT | IPC_EXCL | 0600) == -1)
+                        _exit(EXIT_FAILURE);
+
+                _exit(EXIT_SUCCESS);
+        }
+
+        (void)wait(&sta);
+
+        if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
+                atf_tc_fail("failed to create message queue");
+
+        id = msgget(MSG_KEY, 0);
+
+        if (id == -1)
+                atf_tc_fail("message queue was removed on process exit");
+
+        ATF_REQUIRE(msgctl(id, IPC_RMID, 0) == 0);
+}
+
+ATF_TC_CLEANUP(msgget_exit, tc)
+{
+        clean();
+}
+
+ATF_TC_WITH_CLEANUP(msgget_init);
+ATF_TC_HEAD(msgget_init, tc)
+{
+        atf_tc_set_md_var(tc, "descr",
+            "Test that msgget(2) initializes data structures properly");
+}
+
+ATF_TC_BODY(msgget_init, tc)
+{
+        const uid_t uid = geteuid();
+        const gid_t gid = getegid();
+        struct msqid_ds msgds;
+        time_t t;
+        int id;
+
+        (void)memset(&msgds, 0x9, sizeof(struct msqid_ds));
+
+        t = time(NULL);
+        id = msgget(MSG_KEY, IPC_CREAT | 0600);
+
+        ATF_REQUIRE(id !=-1);
+        ATF_REQUIRE(msgctl(id, IPC_STAT, &msgds) == 0);
+
+        ATF_CHECK(msgds.msg_qnum == 0);
+        ATF_CHECK(msgds.msg_lspid == 0);
+        ATF_CHECK(msgds.msg_lrpid == 0);
+        ATF_CHECK(msgds.msg_rtime == 0);
+        ATF_CHECK(msgds.msg_stime == 0);
+        ATF_CHECK(msgds.msg_perm.uid == uid);
+        ATF_CHECK(msgds.msg_perm.gid == gid);
+        ATF_CHECK(msgds.msg_perm.cuid == uid);
+        ATF_CHECK(msgds.msg_perm.cgid == gid);
+        ATF_CHECK(msgds.msg_perm.mode == 0600);
+
+        if (llabs(t - msgds.msg_ctime) > 5)
+                atf_tc_fail("msgget(2) initialized current time incorrectly");
+
+        ATF_REQUIRE(msgctl(id, IPC_RMID, 0) == 0);
+}
+
+ATF_TC_CLEANUP(msgget_init, tc)
+{
+        clean();
+}
+
+ATF_TC(msgget_limit);
+ATF_TC_HEAD(msgget_limit, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test msgget(2) against system limits");
+}
+
+ATF_TC_BODY(msgget_limit, tc)
+{
+        size_t len = sizeof(int);
+        bool fail = false;
+        int i, lim = 0;
+        int *buf;
+
+        if (sysctlbyname("kern.ipc.msgmni", &lim, &len, NULL, 0) != 0)
+                atf_tc_skip("failed to read kern.ipc.msgmni sysctl");
+
+        buf = calloc(lim + 1, sizeof(*buf));
+        ATF_REQUIRE(buf != NULL);
+
+        for (i = 0; i < lim; i++) {
+
+                buf[i] = msgget(MSG_KEY + i, IPC_CREAT | IPC_EXCL | 0600);
+
+                (void)fprintf(stderr, "key[%d] = %d\n", i, buf[i]);
+
+                /*
+                 * This test only works when there are zero existing
+                 * message queues. Thus, bypass the unit test when
+                 * this precondition is not met, for reason or another.
+                 */
+                if (buf[i] == -1)
+                        goto out;
+        }
+
+        i++;
+        errno = 0;
+
+        buf[i] = msgget(MSG_KEY + i, IPC_CREAT | IPC_EXCL | 0600);
+
+        if (buf[i] != -1 || errno != ENOSPC)
+                fail = true;
+
+out:    /* Remember to clean-up. */
+        for (i = 0; i < lim; i++)
+                (void)msgctl(buf[i], IPC_RMID, 0);
+
+        free(buf);
+
+        if (fail != false)
+                atf_tc_fail("msgget(2) opened more than %d queues", lim);
+}
+
+ATF_TC_WITH_CLEANUP(msgget_mode);
+ATF_TC_HEAD(msgget_mode, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test different modes with msgget(2)");
+        atf_tc_set_md_var(tc, "require.user", "root");
+}
+
+ATF_TC_BODY(msgget_mode, tc)
+{
+        static const mode_t mode[] = {
+                S_IRWXU, S_IRUSR, S_IWUSR, S_IXUSR, S_IRWXG, S_IRGRP,
+                S_IWGRP, S_IXGRP, S_IRWXO, S_IROTH, S_IWOTH, S_IXOTH
+        };
+
+        struct msqid_ds msgds;
+        size_t i;
+        int id;
+
+        for (i = 0; i < __arraycount(mode); i++) {
+
+                (void)fprintf(stderr, "testing mode %d\n", mode[i]);
+                (void)memset(&msgds, 0, sizeof(struct msqid_ds));
+
+                id = msgget(MSG_KEY, IPC_CREAT | IPC_EXCL | (int)mode[i]);
+
+                ATF_REQUIRE(id != -1);
+                ATF_REQUIRE(msgctl(id, IPC_STAT, &msgds) == 0);
+                ATF_REQUIRE(msgds.msg_perm.mode == mode[i]);
+                ATF_REQUIRE(msgctl(id, IPC_RMID, 0) == 0);
+        }
+}
+
+ATF_TC_CLEANUP(msgget_mode, tc)
+{
+        clean();
+}
+
+static volatile int sig_caught;
+
+static void
+sigsys_handler(int signum)
+{
+
+        sig_caught = signum;
+}
+
+static int
+no_kernel_sysvmsg(void)
+{
+        int id;
+        void (*osig)(int);
+
+        sig_caught = 0;
+        osig = signal(SIGSYS, sigsys_handler);
+        id = msgget(MSG_KEY, IPC_CREAT | 0600);
+        if (sig_caught || id == -1)
+                return 1;
+
+        (void)msgctl(id, IPC_RMID, 0);
+        (void)signal(SIGSYS, osig);
+
+        return 0;
+}
+
+ATF_TC(msgget_query);
+ATF_TC_HEAD(msgget_query, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Skip msgget_* tests - no SYSVMSG");
+}
+ATF_TC_BODY(msgget_query, tc)
+{
+        atf_tc_skip("No SYSVMSG in kernel");
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+        if (no_kernel_sysvmsg()) {
+                ATF_TP_ADD_TC(tp, msgget_query);
+        } else {
+                ATF_TP_ADD_TC(tp, msgget_excl);
+                ATF_TP_ADD_TC(tp, msgget_exit);
+                ATF_TP_ADD_TC(tp, msgget_init);
+                /*
+                 * Adjusted for OpenBSD, not available
+                 * ATF_TP_ADD_TC(tp, msgget_limit);
+                 */
+                ATF_TP_ADD_TC(tp, msgget_mode);
+        }
+
+        return atf_no_error();
+}