mirror of
https://github.com/checkpoint-restore/criu
synced 2025-08-31 14:25:49 +00:00
93dd984ca0
Acked-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Adrian Reber <areber@redhat.com>
103 lines
2.0 KiB
C
103 lines
2.0 KiB
C
#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <limits.h>
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#include "zdtmtst.h"
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#define TEST_FILE "test_file"
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#define TEST_SYMLINK "test_symlink"
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const char *test_doc = "Check open symlink preserved";
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const char *test_author = "Pavel Tikhomirov <ptikhomirov@virtuozzo.com>";
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char *dirname;
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TEST_OPTION(dirname, string, "directory name", 1);
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int main(int argc, char **argv)
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{
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char test_symlink[PATH_MAX];
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char test_file[PATH_MAX];
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char pathbuf[PATH_MAX];
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struct stat stb, sta;
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int ret, fd;
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test_init(argc, argv);
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if (mkdir(dirname, 0700)) {
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pr_perror("can't make directory %s", dirname);
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exit(1);
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}
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snprintf(test_file, sizeof(test_file), "%s/%s", dirname, TEST_FILE);
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ret = creat(test_file, 0644);
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if (ret == -1) {
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pr_perror("cat't create %s", test_file);
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return 1;
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}
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close(ret);
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snprintf(test_symlink, sizeof(test_symlink), "%s/%s", dirname, TEST_SYMLINK);
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ret = symlink(test_file, test_symlink);
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if (ret == -1) {
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pr_perror("cat't symlink to %s", test_symlink);
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return 1;
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}
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fd = open(test_symlink, O_PATH | O_NOFOLLOW);
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if (fd == -1) {
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pr_perror("cat't open symlink %s", test_symlink);
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return 1;
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}
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ret = fstat(fd, &sta);
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if (ret == -1) {
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pr_perror("cat't fstat %s", test_symlink);
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return 1;
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}
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if (!S_ISLNK(sta.st_mode)) {
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pr_perror("file is not symlink %s", test_symlink);
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return 1;
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}
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#ifdef ZDTM_UNLINK_SYMLINK
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if (unlink(test_symlink)) {
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pr_perror("can't unlink symlink %s", test_symlink);
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return 1;
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}
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#endif
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test_daemon();
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test_waitsig();
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ret = fstat(fd, &stb);
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if (ret == -1) {
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fail("cat't fstat %s", test_symlink);
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return 1;
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}
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if (!S_ISLNK(stb.st_mode)) {
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fail("file is not symlink %s", test_symlink);
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return 1;
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}
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ret = readlinkat(fd, "", pathbuf, sizeof(pathbuf) - 1);
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if (ret < 0) {
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fail("Can't readlinkat");
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return 1;
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}
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pathbuf[ret] = 0;
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if (strcmp(test_file, pathbuf)) {
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fail("symlink points to %s but %s expected", pathbuf, test_file);
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return 1;
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}
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close(fd);
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pass();
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return 0;
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}
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