int main(int argc, char** argv) {
_cleanup_free_ char *cmd = NULL, *cmd2 = NULL, *ans = NULL, *ans2 = NULL, *d = NULL, *tmp = NULL, *line = NULL;
_cleanup_close_ int fd = -1, fd2 = -1;
const char *p = argv[1] ?: "/tmp";
char *pattern;
log_set_max_level(LOG_DEBUG);
log_parse_environment();
pattern = strjoina(p, "/systemd-test-XXXXXX");
fd = open_tmpfile_unlinkable(p, O_RDWR|O_CLOEXEC);
assert_se(fd >= 0);
assert_se(asprintf(&cmd, "ls -l /proc/"PID_FMT"/fd/%d", getpid_cached(), fd) > 0);
(void) system(cmd);
assert_se(readlink_malloc(cmd + 6, &ans) >= 0);
log_debug("link1: %s", ans);
assert_se(endswith(ans, " (deleted)"));
fd2 = mkostemp_safe(pattern);
assert_se(fd >= 0);
assert_se(unlink(pattern) == 0);
assert_se(asprintf(&cmd2, "ls -l /proc/"PID_FMT"/fd/%d", getpid_cached(), fd2) > 0);
(void) system(cmd2);
assert_se(readlink_malloc(cmd2 + 6, &ans2) >= 0);
log_debug("link2: %s", ans2);
assert_se(endswith(ans2, " (deleted)"));
pattern = strjoina(p, "/tmpfiles-test");
assert_se(tempfn_random(pattern, NULL, &d) >= 0);
fd = open_tmpfile_linkable(d, O_RDWR|O_CLOEXEC, &tmp);
assert_se(fd >= 0);
assert_se(write(fd, "foobar\n", 7) == 7);
assert_se(touch(d) >= 0);
assert_se(link_tmpfile(fd, tmp, d) == -EEXIST);
assert_se(unlink(d) >= 0);
assert_se(link_tmpfile(fd, tmp, d) >= 0);
assert_se(read_one_line_file(d, &line) >= 0);
assert_se(streq(line, "foobar"));
assert_se(unlink(d) >= 0);
return 0;
}
static int fix_permissions(
int fd,
const char *filename,
const char *target,
const char *context[_CONTEXT_MAX],
uid_t uid) {
int r;
assert(fd >= 0);
assert(target);
assert(context);
/* Ignore errors on these */
(void) fchmod(fd, 0640);
(void) fix_acl(fd, uid);
(void) fix_xattr(fd, context);
if (fsync(fd) < 0)
return log_error_errno(errno, "Failed to sync coredump %s: %m", coredump_tmpfile_name(filename));
r = link_tmpfile(fd, filename, target);
if (r < 0)
return log_error_errno(r, "Failed to move coredump %s into place: %m", target);
return 0;
}
