149 lines
3.5 KiB
C
149 lines
3.5 KiB
C
/*
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* Copyright (c) 2014 Fujitsu Ltd.
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* Author: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/*
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* Test Description:
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* Verify that,
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* 1. lchown() fails with -1 return value and sets errno to ELOOP
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* if too many symbolic links were encountered in resolving path.
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* 2. lchown() fails with -1 return value and sets errno to EROFS
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* if the file is on a read-only file system.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <string.h>
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#include <signal.h>
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#include <grp.h>
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#include <pwd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/mman.h>
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#include <sys/mount.h>
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#include "test.h"
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#include "safe_macros.h"
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#include "compat_16.h"
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#define DIR_MODE (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP| \
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S_IXGRP|S_IROTH|S_IXOTH)
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#define TEST_EROFS "mntpoint"
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static char test_eloop[PATH_MAX] = ".";
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static const char *device;
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static int mount_flag;
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static struct test_case_t {
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char *pathname;
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int exp_errno;
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} test_cases[] = {
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{test_eloop, ELOOP},
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{TEST_EROFS, EROFS},
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};
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TCID_DEFINE(lchown03);
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int TST_TOTAL = ARRAY_SIZE(test_cases);
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static void setup(void);
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static void lchown_verify(const struct test_case_t *);
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static void cleanup(void);
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int main(int argc, char *argv[])
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{
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int lc;
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int i;
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tst_parse_opts(argc, argv, NULL, NULL);
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setup();
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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tst_count = 0;
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for (i = 0; i < TST_TOTAL; i++)
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lchown_verify(&test_cases[i]);
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}
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cleanup();
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tst_exit();
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}
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static void setup(void)
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{
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int i;
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const char *fs_type;
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tst_require_root();
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tst_sig(NOFORK, DEF_HANDLER, cleanup);
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TEST_PAUSE;
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tst_tmpdir();
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fs_type = tst_dev_fs_type();
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device = tst_acquire_device(cleanup);
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if (!device)
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tst_brkm(TCONF, cleanup, "Failed to acquire device");
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SAFE_MKDIR(cleanup, "test_eloop", DIR_MODE);
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SAFE_SYMLINK(cleanup, "../test_eloop", "test_eloop/test_eloop");
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for (i = 0; i < 43; i++)
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strcat(test_eloop, "/test_eloop");
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tst_mkfs(cleanup, device, fs_type, NULL, NULL);
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SAFE_MKDIR(cleanup, TEST_EROFS, DIR_MODE);
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SAFE_MOUNT(cleanup, device, TEST_EROFS, fs_type, MS_RDONLY, NULL);
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mount_flag = 1;
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}
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static void lchown_verify(const struct test_case_t *test)
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{
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UID16_CHECK(geteuid(), "lchown", cleanup)
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GID16_CHECK(getegid(), "lchown", cleanup)
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TEST(LCHOWN(cleanup, test->pathname, geteuid(), getegid()));
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if (TEST_RETURN != -1) {
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tst_resm(TFAIL, "lchown() returned %ld, expected -1, errno=%d",
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TEST_RETURN, test->exp_errno);
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return;
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}
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if (TEST_ERRNO == test->exp_errno) {
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tst_resm(TPASS | TTERRNO, "lchown() failed as expected");
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} else {
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tst_resm(TFAIL | TTERRNO,
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"lchown() failed unexpectedly; expected: %d - %s",
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test->exp_errno,
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strerror(test->exp_errno));
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}
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}
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static void cleanup(void)
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{
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if (mount_flag && tst_umount(TEST_EROFS) < 0)
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tst_resm(TWARN | TERRNO, "umount device:%s failed", device);
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if (device)
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tst_release_device(device);
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tst_rmdir();
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}
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