1 files changed, 175 insertions, 0 deletions

diff --git a/src/regress/lib/libc/sys/t_getgroups.c b/src/regress/lib/libc/sys/t_getgroups.c
new file mode 100644
index 0000000000..dcef3c16f5
--- /dev/null
+++ b/src/regress/lib/libc/sys/t_getgroups.c
@@ -0,0 +1,175 @@
+/*      $OpenBSD: t_getgroups.c,v 1.1.1.1 2019/11/19 19:57:03 bluhm Exp $       */
+/* $NetBSD: t_getgroups.c,v 1.1 2011/07/07 06:57:53 jruoho 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_getgroups.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $");
+
+#include <sys/wait.h>
+
+#include "atf-c.h"
+#include <errno.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+ATF_TC(getgroups_err);
+ATF_TC_HEAD(getgroups_err, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test errors in getgroups(2)");
+}
+
+ATF_TC_BODY(getgroups_err, tc)
+{
+        gid_t gidset[NGROUPS_MAX];
+
+        errno = 0;
+
+        ATF_REQUIRE(getgroups(NGROUPS_MAX, (gid_t *)-1) == -1);
+        ATF_REQUIRE(errno == EFAULT);
+
+        errno = 0;
+
+        ATF_REQUIRE(getgroups(-1, gidset) == -1);
+        ATF_REQUIRE(errno == EINVAL);
+}
+
+ATF_TC(getgroups_getgid);
+ATF_TC_HEAD(getgroups_getgid, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test getgid(2) from getgroups(2)");
+}
+
+ATF_TC_BODY(getgroups_getgid, tc)
+{
+        gid_t gidset[NGROUPS_MAX];
+        gid_t gid = getgid();
+        int i, n;
+
+        /*
+         * Check that getgid(2) is found from
+         * the GIDs returned by getgroups(2).
+         */
+        n = getgroups(NGROUPS_MAX, gidset);
+
+        for (i = 0; i < n; i++) {
+
+                if (gidset[i] == gid)
+                        return;
+        }
+
+        atf_tc_fail("getgid(2) not found from getgroups(2)");
+}
+
+ATF_TC(getgroups_setgid);
+ATF_TC_HEAD(getgroups_setgid, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test setgid(2) from getgroups(2)");
+        atf_tc_set_md_var(tc, "require.user", "root");
+}
+
+ATF_TC_BODY(getgroups_setgid, tc)
+{
+        gid_t gidset[NGROUPS_MAX];
+        int i, n, rv, sta;
+        pid_t pid;
+
+        /*
+         * Check that we can setgid(2)
+         * to the returned group IDs.
+         */
+        n = getgroups(NGROUPS_MAX, gidset);
+        ATF_REQUIRE(n >= 0);
+
+        for (i = 0; i < n; i++) {
+
+                pid = fork();
+                ATF_REQUIRE(pid >= 0);
+
+                if (pid == 0) {
+
+                        rv = setgid(gidset[i]);
+
+                        if (rv != 0)
+                                _exit(EXIT_FAILURE);
+
+                        _exit(EXIT_SUCCESS);
+                }
+
+                (void)wait(&sta);
+
+                if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
+                        atf_tc_fail("getgroups(2) is inconsistent");
+        }
+}
+
+ATF_TC(getgroups_zero);
+ATF_TC_HEAD(getgroups_zero, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test getgroups(2) with zero param");
+}
+
+ATF_TC_BODY(getgroups_zero, tc)
+{
+        const gid_t val = 123456789;
+        gid_t gidset[NGROUPS_MAX];
+        size_t i;
+
+        /*
+         * If the first parameter is zero, the number
+         * of groups should be returned but the supplied
+         * buffer should remain intact.
+         */
+        for (i = 0; i < __arraycount(gidset); i++)
+                gidset[i] = val;
+
+        ATF_REQUIRE(getgroups(0, gidset) >= 0);
+
+        for (i = 0; i < __arraycount(gidset); i++) {
+
+                if (gidset[i] != val)
+                        atf_tc_fail("getgroups(2) modified the buffer");
+        }
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+        ATF_TP_ADD_TC(tp, getgroups_err);
+        ATF_TP_ADD_TC(tp, getgroups_getgid);
+        ATF_TP_ADD_TC(tp, getgroups_setgid);
+        ATF_TP_ADD_TC(tp, getgroups_zero);
+
+        return atf_no_error();
+}