1 files changed, 210 insertions, 0 deletions

diff --git a/src/regress/lib/libc/sys/t_umask.c b/src/regress/lib/libc/sys/t_umask.c
new file mode 100644
index 0000000000..b312e8183b
--- /dev/null
+++ b/src/regress/lib/libc/sys/t_umask.c
@@ -0,0 +1,210 @@
+/*      $OpenBSD: t_umask.c,v 1.1.1.1 2019/11/19 19:57:04 bluhm Exp $   */
+/* $NetBSD: t_umask.c,v 1.2 2017/01/13 19:34:19 christos 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_umask.c,v 1.2 2017/01/13 19:34:19 christos Exp $");
+
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include "atf-c.h"
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static const char path[] = "umask";
+static const mode_t mask[] = {
+        S_IRWXU,
+        S_IRUSR,
+        S_IWUSR,
+        S_IXUSR,
+        S_IRWXG,
+        S_IRGRP,
+        S_IWGRP,
+        S_IXGRP,
+        S_IRWXO,
+        S_IROTH,
+        S_IWOTH,
+        S_IXOTH
+};
+
+ATF_TC_WITH_CLEANUP(umask_fork);
+ATF_TC_HEAD(umask_fork, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Check that umask(2) is inherited");
+}
+
+ATF_TC_BODY(umask_fork, tc)
+{
+        mode_t mode;
+        pid_t pid;
+        size_t i;
+        int sta;
+
+        for (i = 0; i < __arraycount(mask) - 1; i++) {
+
+                (void)umask(mask[i] | mask[i + 1]);
+
+                pid = fork();
+
+                if (pid < 0)
+                        continue;
+
+                if (pid == 0) {
+
+                        mode = umask(mask[i]);
+
+                        if (mode != (mask[i] | mask[i + 1]))
+                                _exit(EXIT_FAILURE);
+
+                        _exit(EXIT_SUCCESS);
+                }
+
+                (void)wait(&sta);
+
+                if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
+                        goto fail;
+        }
+
+        return;
+
+fail:
+        (void)umask(S_IWGRP | S_IWOTH);
+
+        atf_tc_fail("umask(2) was not inherited");
+}
+
+ATF_TC_CLEANUP(umask_fork, tc)
+{
+        (void)umask(S_IWGRP | S_IWOTH);
+}
+
+ATF_TC_WITH_CLEANUP(umask_open);
+ATF_TC_HEAD(umask_open, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "A basic test of open(2) and umask(2)");
+}
+
+ATF_TC_BODY(umask_open, tc)
+{
+        const char *str = NULL;
+        struct stat st;
+        size_t i;
+        int fd;
+
+        for (i = 0; i < __arraycount(mask); i++) {
+
+                (void)umask(mask[i]);
+
+                fd = open(path, O_RDWR | O_CREAT, 0777);
+
+                if (fd < 0)
+                        continue;
+
+                (void)close(fd);
+                (void)memset(&st, 0, sizeof(struct stat));
+
+                if (stat(path, &st) != 0) {
+                        str = "failed to stat(2)";
+                        goto out;
+                }
+
+                if ((st.st_mode & mask[i]) != 0) {
+                        str = "invalid umask(2)";
+                        goto out;
+                }
+
+                if (unlink(path) != 0) {
+                        str = "failed to unlink(2)";
+                        goto out;
+                }
+
+        }
+
+out:
+        (void)umask(S_IWGRP | S_IWOTH);
+
+        if (str != NULL)
+                atf_tc_fail("%s", str);
+}
+
+ATF_TC_CLEANUP(umask_open, tc)
+{
+        (void)umask(S_IWGRP | S_IWOTH);
+        (void)unlink(path);
+}
+
+ATF_TC_WITH_CLEANUP(umask_previous);
+ATF_TC_HEAD(umask_previous, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test the return value from umask(2)");
+}
+
+ATF_TC_BODY(umask_previous, tc)
+{
+        mode_t mode;
+        size_t i;
+
+        for (i = 0; i < __arraycount(mask); i++) {
+
+                mode = umask(mask[i]);
+                mode = umask(mask[i]);
+
+                if (mode != mask[i])
+                        goto fail;
+        }
+
+        return;
+
+fail:
+        (void)umask(S_IWGRP | S_IWOTH);
+
+        atf_tc_fail("umask(2) did not return the previous mask");
+}
+
+ATF_TC_CLEANUP(umask_previous, tc)
+{
+        (void)umask(S_IWGRP | S_IWOTH);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+        ATF_TP_ADD_TC(tp, umask_fork);
+        ATF_TP_ADD_TC(tp, umask_open);
+        ATF_TP_ADD_TC(tp, umask_previous);
+
+        return atf_no_error();
+}