[src/trunk]: src/tests/lib/libc/sys Add few basic checks.

[jruoho <jruoho%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/755e83dbfd16
branches:  trunk
changeset: 770383:755e83dbfd16
user:      jruoho <jruoho%NetBSD.org@localhost>
date:      Sat Oct 15 07:38:31 2011 +0000

description:
Add few basic checks.

diffstat:

 tests/lib/libc/sys/t_mkdir.c |  134 +++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 130 insertions(+), 4 deletions(-)

diffs (167 lines):

diff -r 53f5bbbcbbd7 -r 755e83dbfd16 tests/lib/libc/sys/t_mkdir.c
--- a/tests/lib/libc/sys/t_mkdir.c      Sat Oct 15 07:00:48 2011 +0000
+++ b/tests/lib/libc/sys/t_mkdir.c      Sat Oct 15 07:38:31 2011 +0000
@@ -1,11 +1,11 @@
-/* $NetBSD: t_mkdir.c,v 1.1 2011/10/15 06:26:33 jruoho Exp $ */
+/* $NetBSD: t_mkdir.c,v 1.2 2011/10/15 07:38:31 jruoho Exp $ */
 
 /*-
- * Copyright (c) 2008 The NetBSD Foundation, Inc.
+ * Copyright (c) 2008, 2011 The NetBSD Foundation, Inc.
  * All rights reserved.
  *
  * This code is derived from software contributed to The NetBSD Foundation
- * by Jason R. Thorpe.
+ * by Jason R. Thorpe and Jukka Ruohonen.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -32,14 +32,136 @@
 #include <sys/cdefs.h>
 __COPYRIGHT("@(#) Copyright (c) 2008\
  The NetBSD Foundation, inc. All rights reserved.");
-__RCSID("$NetBSD: t_mkdir.c,v 1.1 2011/10/15 06:26:33 jruoho Exp $");
+__RCSID("$NetBSD: t_mkdir.c,v 1.2 2011/10/15 07:38:31 jruoho Exp $");
 
 #include <sys/stat.h>
+#include <sys/wait.h>
 
 #include <atf-c.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <pwd.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include <unistd.h>
 
+ATF_TC(mkdir_err);
+ATF_TC_HEAD(mkdir_err, tc)
+{
+       atf_tc_set_md_var(tc, "descr", "Checks errors from mkdir(2)");
+}
+
+ATF_TC_BODY(mkdir_err, tc)
+{
+       char buf[PATH_MAX + 1];
+       int fd;
+
+       (void)memset(buf, 'x', sizeof(buf));
+
+       fd = open("/etc", O_RDONLY);
+
+       if (fd >= 0) {
+
+               (void)close(fd);
+
+               errno = 0;
+               ATF_REQUIRE_ERRNO(EEXIST, mkdir("/etc", 0500) == -1);
+       }
+
+       errno = 0;
+       ATF_REQUIRE_ERRNO(EFAULT, mkdir((void *)-1, 0500) == -1);
+
+       errno = 0;
+       ATF_REQUIRE_ERRNO(ENAMETOOLONG, mkdir(buf, 0500) == -1);
+
+       errno = 0;
+       ATF_REQUIRE_ERRNO(ENOENT, mkdir("/a/b/c/d/e/f/g/h/i/j/k", 0500) == -1);
+}
+
+ATF_TC_WITH_CLEANUP(mkdir_perm);
+ATF_TC_HEAD(mkdir_perm, tc)
+{
+       atf_tc_set_md_var(tc, "descr", "Checks permissions with mkdir(2)");
+       atf_tc_set_md_var(tc, "require.user", "unprivileged");
+}
+
+ATF_TC_BODY(mkdir_perm, tc)
+{
+       errno = 0;
+       ATF_REQUIRE_ERRNO(EACCES, mkdir("/usr/__nonexistent__", 0500) == -1);
+}
+
+ATF_TC_CLEANUP(mkdir_perm, tc)
+{
+       (void)rmdir("/usr/__nonexistent__");
+}
+
+ATF_TC_WITH_CLEANUP(mkdir_mode);
+ATF_TC_HEAD(mkdir_mode, tc)
+{
+       atf_tc_set_md_var(tc, "descr", "Test that UIDs and GIDs are right "
+           "for a directory created with mkdir(2)");
+       atf_tc_set_md_var(tc, "require.user", "root");
+}
+
+ATF_TC_BODY(mkdir_mode, tc)
+{
+       static const char *path = "/tmp/mkdir";
+       struct stat st_a, st_b;
+       struct passwd *pw;
+       pid_t pid;
+       int sta;
+
+       (void)memset(&st_a, 0, sizeof(struct stat));
+       (void)memset(&st_b, 0, sizeof(struct stat));
+
+       pw = getpwnam("nobody");
+
+       ATF_REQUIRE(pw != NULL);
+       ATF_REQUIRE(stat("/tmp", &st_a) == 0);
+
+       pid = fork();
+       ATF_REQUIRE(pid >= 0);
+
+       if (pid == 0) {
+
+               if (setuid(pw->pw_uid) != 0)
+                       _exit(EXIT_FAILURE);
+
+               if (mkdir(path, 0500) != 0)
+                       _exit(EXIT_FAILURE);
+
+               _exit(EXIT_SUCCESS);
+       }
+
+       (void)sleep(1);
+       (void)wait(&sta);
+
+       if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
+               atf_tc_fail("failed to create '%s'", path);
+
+       ATF_REQUIRE(stat(path, &st_b) == 0);
+       ATF_REQUIRE(rmdir(path) == 0);
+
+       /*
+        * The directory's owner ID should be set to the
+        * effective UID, whereas the group ID should be
+        * set to that of the parent directory.
+        */
+       if (st_b.st_uid != pw->pw_uid)
+               atf_tc_fail("invalid UID for '%s'", path);
+
+       if (st_b.st_gid != st_a.st_gid)
+               atf_tc_fail("GID did not follow the parent directory");
+}
+
+ATF_TC_CLEANUP(mkdir_mode, tc)
+{
+       (void)rmdir("/tmp/mkdir");
+}
+
 ATF_TC(mkdir_trail);
 ATF_TC_HEAD(mkdir_trail, tc)
 {
@@ -78,6 +200,10 @@
 
 ATF_TP_ADD_TCS(tp)
 {
+
+       ATF_TP_ADD_TC(tp, mkdir_err);
+       ATF_TP_ADD_TC(tp, mkdir_perm);
+       ATF_TP_ADD_TC(tp, mkdir_mode);
        ATF_TP_ADD_TC(tp, mkdir_trail);
 
        return atf_no_error();