172 lines
3.8 KiB
C
172 lines
3.8 KiB
C
/*
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* Copyright (c) 2015 Cedric Hnyda <chnyda@suse.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/* Description:
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* Calls renameat2(2) with the flag RENAME_EXCHANGE and check that
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* the content was swapped
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*/
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#define _GNU_SOURCE
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#include "test.h"
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#include "safe_macros.h"
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#include "lapi/fcntl.h"
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#include "renameat2.h"
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#define TEST_DIR "test_dir/"
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#define TEST_DIR2 "test_dir2/"
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#define TEST_FILE "test_file"
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#define TEST_FILE2 "test_file2"
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char *TCID = "renameat202";
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static int olddirfd;
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static int newdirfd;
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static int fd = -1;
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static int cnt;
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static const char content[] = "content";
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static long fs_type;
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int TST_TOTAL = 1;
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static void setup(void);
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static void cleanup(void);
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static void renameat2_verify(void);
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int main(int ac, char **av)
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{
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int lc;
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tst_parse_opts(ac, av, 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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TEST(renameat2(olddirfd, TEST_FILE,
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newdirfd, TEST_FILE2, RENAME_EXCHANGE));
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cnt++;
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renameat2_verify();
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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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if ((tst_kvercmp(3, 15, 0)) < 0) {
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tst_brkm(TCONF, NULL,
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"This test can only run on kernels that are 3.15. and higher");
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}
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tst_tmpdir();
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fs_type = tst_fs_type(cleanup, ".");
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SAFE_MKDIR(cleanup, TEST_DIR, 0700);
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SAFE_MKDIR(cleanup, TEST_DIR2, 0700);
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SAFE_TOUCH(cleanup, TEST_DIR TEST_FILE, 0600, NULL);
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SAFE_TOUCH(cleanup, TEST_DIR2 TEST_FILE2, 0600, NULL);
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olddirfd = SAFE_OPEN(cleanup, TEST_DIR, O_DIRECTORY);
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newdirfd = SAFE_OPEN(cleanup, TEST_DIR2, O_DIRECTORY);
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SAFE_FILE_PRINTF(cleanup, TEST_DIR TEST_FILE, "%s", content);
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}
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static void cleanup(void)
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{
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if (olddirfd > 0 && close(olddirfd) < 0)
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tst_resm(TWARN | TERRNO, "close olddirfd failed");
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if (newdirfd > 0 && close(newdirfd) < 0)
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tst_resm(TWARN | TERRNO, "close newdirfd failed");
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if (fd > 0 && close(fd) < 0)
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tst_resm(TWARN | TERRNO, "close fd failed");
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tst_rmdir();
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}
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static void renameat2_verify(void)
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{
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char str[BUFSIZ] = { 0 };
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struct stat st;
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char *emptyfile;
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char *contentfile;
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int readn, data_len;
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if (TEST_ERRNO == EINVAL && TST_BTRFS_MAGIC == fs_type) {
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tst_brkm(TCONF, cleanup,
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"RENAME_EXCHANGE flag is not implemeted on %s",
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tst_fs_type_name(fs_type));
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}
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if (TEST_RETURN != 0) {
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tst_resm(TFAIL | TTERRNO, "renameat2() failed unexpectedly");
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return;
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}
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if (cnt % 2 == 1) {
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emptyfile = TEST_DIR TEST_FILE;
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contentfile = TEST_DIR2 TEST_FILE2;
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} else {
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emptyfile = TEST_DIR2 TEST_FILE2;
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contentfile = TEST_DIR TEST_FILE;
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}
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fd = SAFE_OPEN(cleanup, contentfile, O_RDONLY);
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SAFE_STAT(cleanup, emptyfile, &st);
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readn = SAFE_READ(cleanup, 0, fd, str, BUFSIZ);
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if (close(fd) < 0)
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tst_brkm(TERRNO | TFAIL, cleanup, "close fd failed");
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fd = 0;
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data_len = sizeof(content) - 1;
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if (readn != data_len) {
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tst_resm(TFAIL, "Wrong number of bytes read after renameat2(). "
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"Expect %d, got %d", data_len, readn);
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return;
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}
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if (strncmp(content, str, data_len)) {
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tst_resm(TFAIL, "File content changed after renameat2(). "
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"Expect '%s', got '%s'", content, str);
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return;
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}
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if (st.st_size) {
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tst_resm(TFAIL, "emptyfile has non-zero file size");
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return;
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}
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tst_resm(TPASS, "renameat2() test passed");
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}
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