241 lines
6.3 KiB
C
241 lines
6.3 KiB
C
/******************************************************************************
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*
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* Copyright (c) International Business Machines Corp., 2006
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will 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
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* the 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 to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* NAME
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* symlinkat01.c
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*
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* DESCRIPTION
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* This test case will verify basic function of symlinkat
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* added by kernel 2.6.16 or up.
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*
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* Author
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* Yi Yang <yyangcdl@cn.ibm.com>
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*
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* History
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* 08/25/2006 Created first by Yi Yang <yyangcdl@cn.ibm.com>
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*
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*****************************************************************************/
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#define _GNU_SOURCE
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <fcntl.h>
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#include <stdlib.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 "test.h"
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#include "safe_macros.h"
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#include "lapi/syscalls.h"
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#define MYRETCODE -999
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#ifndef AT_FDCWD
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#define AT_FDCWD -100
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#endif
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struct test_struct;
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static void setup();
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static void cleanup();
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static void setup_every_copy();
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static void mysymlinkat_test(struct test_struct *desc);
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#define TEST_DIR1 "olddir"
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#define TEST_DIR2 "newdir"
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#define TEST_DIR3 "deldir"
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#define TEST_FILE1 "oldfile"
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#define TEST_FILE2 "newfile"
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#define TEST_FIFO "fifo"
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static char dpathname[256] = "%s/" TEST_DIR2 "/" TEST_FILE1;
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static int olddirfd, newdirfd = -1, cwd_fd = AT_FDCWD, stdinfd = 0, crapfd =
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-1, deldirfd;
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struct test_struct {
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const char *oldfn;
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int *newfd;
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const char *newfn;
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const char *referencefn1;
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const char *referencefn2;
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int expected_errno;
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} test_desc[] = {
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/* relative paths */
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{
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"../" TEST_DIR1 "/" TEST_FILE1, &newdirfd, TEST_FILE1,
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TEST_DIR1 "/" TEST_FILE1, TEST_DIR2 "/" TEST_FILE1, 0},
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/* abs path at dst */
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{
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"../" TEST_DIR1 "/" TEST_FILE1, &newdirfd, dpathname,
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TEST_DIR1 "/" TEST_FILE1, TEST_DIR2 "/" TEST_FILE1, 0},
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/* relative paths to cwd */
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{
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"../" TEST_DIR1 "/" TEST_FILE1, &cwd_fd,
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TEST_DIR2 "/" TEST_FILE1, TEST_DIR1 "/" TEST_FILE1,
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TEST_DIR2 "/" TEST_FILE1, 0},
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/* abs path */
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{
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"../" TEST_DIR1 "/" TEST_FILE1, &cwd_fd, dpathname,
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TEST_DIR1 "/" TEST_FILE1, TEST_DIR2 "/" TEST_FILE1, 0},
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/* relative paths to invalid */
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{
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"../" TEST_DIR1 "/" TEST_FILE1, &stdinfd,
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TEST_DIR2 "/" TEST_FILE1, 0, 0, ENOTDIR},
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/* abs path at dst */
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{
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"../" TEST_DIR1 "/" TEST_FILE1, &stdinfd, dpathname,
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TEST_DIR1 "/" TEST_FILE1, TEST_DIR2 "/" TEST_FILE1, 0},
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/* relative paths to crap */
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{
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"../" TEST_DIR1 "/" TEST_FILE1, &crapfd,
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TEST_DIR2 "/" TEST_FILE1, 0, 0, EBADF},
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/* abs path at dst */
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{
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"../" TEST_DIR1 "/" TEST_FILE1, &crapfd, dpathname,
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TEST_DIR1 "/" TEST_FILE1, TEST_DIR2 "/" TEST_FILE1, 0},
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/* relative paths to deleted */
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{
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"../" TEST_DIR1 "/" TEST_FILE1, &deldirfd,
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TEST_DIR2 "/" TEST_FILE1, 0, 0, ENOENT},
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/* abs path at dst */
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{
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"../" TEST_DIR1 "/" TEST_FILE1, &deldirfd, dpathname,
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TEST_DIR1 "/" TEST_FILE1, TEST_DIR2 "/" TEST_FILE1, 0},
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/* fifo link */
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/* { TEST_FIFO, &newdirfd, TEST_FILE1, TEST_DIR1"/"TEST_FIFO, TEST_DIR2"/"TEST_FILE1, 0 }, */
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};
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char *TCID = "symlinkat01";
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int TST_TOTAL = sizeof(test_desc) / sizeof(*test_desc);
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static int mysymlinkat(const char *oldfilename,
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int newdirfd, const char *newfilename)
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{
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return ltp_syscall(__NR_symlinkat, oldfilename, newdirfd, newfilename);
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}
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int main(int ac, char **av)
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{
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int lc;
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int i;
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/* Disable test if the version of the kernel is less than 2.6.16 */
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if ((tst_kvercmp(2, 6, 16)) < 0) {
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tst_resm(TWARN, "This test can only run on kernels that are ");
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tst_resm(TWARN, "2.6.16 and higher");
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exit(0);
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}
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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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for (i = 0; i < TST_TOTAL; i++) {
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setup_every_copy();
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mysymlinkat_test(&test_desc[i]);
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}
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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_every_copy(void)
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{
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close(newdirfd);
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unlink(dpathname);
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rmdir(TEST_DIR2);
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SAFE_MKDIR(cleanup, TEST_DIR2, 0700);
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newdirfd = SAFE_OPEN(cleanup, TEST_DIR2, O_DIRECTORY);
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}
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static void mysymlinkat_test(struct test_struct *desc)
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{
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int fd;
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TEST(mysymlinkat(desc->oldfn, *desc->newfd, desc->newfn));
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/* check return code */
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if (TEST_ERRNO == desc->expected_errno) {
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if (TEST_RETURN == 0 && desc->referencefn1 != NULL) {
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int tnum = rand(), vnum = ~tnum;
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fd = SAFE_OPEN(cleanup, desc->referencefn1, O_RDWR);
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SAFE_WRITE(cleanup, 1, fd, &tnum, sizeof(tnum));
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SAFE_CLOSE(cleanup, fd);
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fd = SAFE_OPEN(cleanup, desc->referencefn2, O_RDONLY);
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SAFE_READ(cleanup, 1, fd, &vnum, sizeof(vnum));
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SAFE_CLOSE(cleanup, fd);
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if (tnum == vnum)
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tst_resm(TPASS, "Test passed");
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else
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tst_resm(TFAIL,
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"The link file's content isn't as same as the original file's "
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"although symlinkat returned 0");
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} else {
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tst_resm(TPASS,
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"symlinkat() returned the expected errno %d: %s",
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TEST_ERRNO, strerror(TEST_ERRNO));
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}
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} else {
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tst_resm(TFAIL,
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TEST_RETURN ==
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0 ? "symlinkat() surprisingly succeeded" :
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"symlinkat() Failed, errno=%d : %s", TEST_ERRNO,
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strerror(TEST_ERRNO));
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}
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}
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static void setup(void)
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{
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char *tmp;
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int fd;
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tst_sig(NOFORK, DEF_HANDLER, cleanup);
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tst_tmpdir();
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SAFE_MKDIR(cleanup, TEST_DIR1, 0700);
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SAFE_MKDIR(cleanup, TEST_DIR3, 0700);
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olddirfd = SAFE_OPEN(cleanup, TEST_DIR1, O_DIRECTORY);
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deldirfd = SAFE_OPEN(cleanup, TEST_DIR3, O_DIRECTORY);
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SAFE_RMDIR(cleanup, TEST_DIR3);
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fd = SAFE_OPEN(cleanup, TEST_DIR1 "/" TEST_FILE1, O_CREAT | O_EXCL, 0600);
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SAFE_CLOSE(cleanup, fd);
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/* gratuitous memory leak here */
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tmp = strdup(dpathname);
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snprintf(dpathname, sizeof(dpathname), tmp, get_current_dir_name());
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TEST_PAUSE;
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}
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static void cleanup(void)
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{
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tst_rmdir();
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}
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