#include "macro.h"
#include "mkdir.h"
#include "path-util.h"
+#include "random-util.h"
#include "rm-rf.h"
#include "stdio-util.h"
#include "string-util.h"
test_path_is_encrypted_one("/dev", booted > 0 ? false : -1);
}
+static void create_binary_file(const char *p, const void *data, size_t l) {
+ _cleanup_close_ int fd = -1;
+
+ fd = open(p, O_CREAT|O_WRONLY|O_EXCL|O_CLOEXEC, 0600);
+ assert_se(fd >= 0);
+ assert_se(write(fd, data, l) == (ssize_t) l);
+}
+
static void test_conservative_rename(void) {
_cleanup_(unlink_and_freep) char *p = NULL;
_cleanup_free_ char *q = NULL;
+ size_t l = 16*1024 + random_u64() % (32 * 1024); /* some randomly sized buffer 16k…48k */
+ uint8_t buffer[l+1];
+
+ random_bytes(buffer, l);
assert_se(tempfn_random_child(NULL, NULL, &p) >= 0);
- assert_se(write_string_file(p, "this is a test", WRITE_STRING_FILE_CREATE) >= 0);
+ create_binary_file(p, buffer, l);
assert_se(tempfn_random_child(NULL, NULL, &q) >= 0);
assert_se(access(q, F_OK) < 0 && errno == ENOENT);
/* Check that a manual copy is detected */
- assert_se(copy_file(p, q, 0, (mode_t) -1, 0, 0, COPY_REFLINK) >= 0);
+ assert_se(copy_file(p, q, 0, MODE_INVALID, 0, 0, COPY_REFLINK) >= 0);
assert_se(conservative_renameat(AT_FDCWD, q, AT_FDCWD, p) == 0);
assert_se(access(q, F_OK) < 0 && errno == ENOENT);
/* Check that a manual new writeout is also detected */
- assert_se(write_string_file(q, "this is a test", WRITE_STRING_FILE_CREATE) >= 0);
+ create_binary_file(q, buffer, l);
assert_se(conservative_renameat(AT_FDCWD, q, AT_FDCWD, p) == 0);
assert_se(access(q, F_OK) < 0 && errno == ENOENT);
/* Check that a minimally changed version is detected */
- assert_se(write_string_file(q, "this is a_test", WRITE_STRING_FILE_CREATE) >= 0);
+ buffer[47] = ~buffer[47];
+ create_binary_file(q, buffer, l);
assert_se(conservative_renameat(AT_FDCWD, q, AT_FDCWD, p) > 0);
assert_se(access(q, F_OK) < 0 && errno == ENOENT);
/* Check that this really is new updated version */
- assert_se(write_string_file(q, "this is a_test", WRITE_STRING_FILE_CREATE) >= 0);
+ create_binary_file(q, buffer, l);
assert_se(conservative_renameat(AT_FDCWD, q, AT_FDCWD, p) == 0);
assert_se(access(q, F_OK) < 0 && errno == ENOENT);
/* Make sure we detect extended files */
- assert_se(write_string_file(q, "this is a_testx", WRITE_STRING_FILE_CREATE) >= 0);
+ buffer[l++] = 47;
+ create_binary_file(q, buffer, l);
assert_se(conservative_renameat(AT_FDCWD, q, AT_FDCWD, p) > 0);
assert_se(access(q, F_OK) < 0 && errno == ENOENT);
/* Make sure we detect truncated files */
- assert_se(write_string_file(q, "this is a_test", WRITE_STRING_FILE_CREATE) >= 0);
+ l--;
+ create_binary_file(q, buffer, l);
assert_se(conservative_renameat(AT_FDCWD, q, AT_FDCWD, p) > 0);
assert_se(access(q, F_OK) < 0 && errno == ENOENT);
}