1 files changed, 198 insertions, 0 deletions

diff --git a/src/regress/lib/libc/sys/t_revoke.c b/src/regress/lib/libc/sys/t_revoke.c
new file mode 100644
index 0000000000..ad54f814d1
--- /dev/null
+++ b/src/regress/lib/libc/sys/t_revoke.c
@@ -0,0 +1,198 @@
+/*      $OpenBSD: t_revoke.c,v 1.1.1.1 2019/11/19 19:57:04 bluhm Exp $  */
+/* $NetBSD: t_revoke.c,v 1.2 2017/01/13 21:15:57 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_revoke.c,v 1.2 2017/01/13 21:15:57 christos Exp $");
+
+#include <sys/resource.h>
+#include <sys/wait.h>
+
+#include "atf-c.h"
+#include <fcntl.h>
+#include <errno.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static const char path[] = "revoke";
+
+ATF_TC_WITH_CLEANUP(revoke_basic);
+ATF_TC_HEAD(revoke_basic, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "A basic test of revoke(2)");
+}
+
+ATF_TC_BODY(revoke_basic, tc)
+{
+        struct rlimit res;
+        char tmp[10];
+        size_t i, n;
+        int *buf;
+
+        (void)memset(&res, 0, sizeof(struct rlimit));
+        (void)getrlimit(RLIMIT_NOFILE, &res);
+
+        if ((n = res.rlim_cur / 10) == 0)
+                n = 10;
+
+        buf = calloc(n, sizeof(int));
+        ATF_REQUIRE(buf != NULL);
+
+        buf[0] = open(path, O_RDWR | O_CREAT, 0600);
+        ATF_REQUIRE(buf[0] >= 0);
+
+        for (i = 1; i < n; i++) {
+                buf[i] = open(path, O_RDWR);
+                ATF_REQUIRE(buf[i] >= 0);
+        }
+
+        ATF_REQUIRE(revoke(path) == 0);
+
+        for (i = 0; i < n; i++) {
+
+                ATF_REQUIRE(read(buf[i], tmp, sizeof(tmp)) == -1);
+
+                (void)close(buf[i]);
+        }
+
+        free(buf);
+
+        (void)unlink(path);
+}
+
+ATF_TC_CLEANUP(revoke_basic, tc)
+{
+        (void)unlink(path);
+}
+
+ATF_TC(revoke_err);
+ATF_TC_HEAD(revoke_err, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test errors from revoke(2)");
+        atf_tc_set_md_var(tc, "require.user", "unprivileged");
+}
+
+ATF_TC_BODY(revoke_err, tc)
+{
+        char buf[1024 + 1];     /* XXX: From the manual page... */
+
+        (void)memset(buf, 'x', sizeof(buf));
+
+        errno = 0;
+        ATF_REQUIRE_ERRNO(EFAULT, revoke((char *)-1) == -1);
+
+        errno = 0;
+        ATF_REQUIRE_ERRNO(ENAMETOOLONG, revoke(buf) == -1);
+
+        errno = 0;
+        /* Adjusted for OpenBSD, initially EPERM */
+        ATF_REQUIRE_ERRNO(ENOTTY, revoke("/etc/passwd") == -1);
+
+        errno = 0;
+        ATF_REQUIRE_ERRNO(ENOENT, revoke("/etc/xxx/yyy") == -1);
+}
+
+ATF_TC_WITH_CLEANUP(revoke_perm);
+ATF_TC_HEAD(revoke_perm, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test permissions revoke(2)");
+        atf_tc_set_md_var(tc, "require.user", "root");
+}
+
+ATF_TC_BODY(revoke_perm, tc)
+{
+        struct passwd *pw;
+        int fd, sta;
+        pid_t pid;
+
+        pw = getpwnam("nobody");
+        fd = open(path, O_RDWR | O_CREAT, 0600);
+
+        ATF_REQUIRE(fd >= 0);
+        ATF_REQUIRE(pw != NULL);
+        ATF_REQUIRE(revoke(path) == 0);
+
+        pid = fork();
+        ATF_REQUIRE(pid >= 0);
+
+        if (pid == 0) {
+
+                if (setuid(pw->pw_uid) != 0)
+                        _exit(EXIT_FAILURE);
+
+                errno = 0;
+
+                if (revoke(path) == 0)
+                        _exit(EXIT_FAILURE);
+
+                if (errno != EACCES)
+                        _exit(EXIT_FAILURE);
+
+                if (close(fd) != 0)
+                        _exit(EXIT_FAILURE);
+
+                _exit(EXIT_SUCCESS);
+        }
+
+        (void)wait(&sta);
+
+        if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
+                atf_tc_fail("revoke(2) did not obey permissions");
+
+        (void)close(fd);
+        ATF_REQUIRE(unlink(path) == 0);
+}
+
+ATF_TC_CLEANUP(revoke_perm, tc)
+{
+        (void)unlink(path);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+        /*
+         * Adjusted for OpenBSD, revoke only on ttys supported
+         * ATF_TP_ADD_TC(tp, revoke_basic);
+         */
+        ATF_TP_ADD_TC(tp, revoke_err);
+        /*
+         * Adjusted for OpenBSD, revoke only on ttys supported
+         * ATF_TP_ADD_TC(tp, revoke_perm);
+         */
+
+        return atf_no_error();
+}