1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2017 Sean Purcell
5 * All rights reserved.
6 */
7 #include "test.h"
8
DEFINE_TEST(test_option_zstd)9 DEFINE_TEST(test_option_zstd)
10 {
11 char *p;
12 int r;
13 size_t s;
14
15 /* Create a file. */
16 assertMakeFile("f", 0644, "a");
17
18 /* Archive it with lz4 compression. */
19 r = systemf("%s -cf - --zstd f >archive.out 2>archive.err",
20 testprog);
21 p = slurpfile(&s, "archive.err");
22 p[s] = '\0';
23 if (r != 0) {
24 if (strstr(p, "Unsupported compression") != NULL) {
25 skipping("This version of bsdtar was compiled "
26 "without zstd support");
27 goto done;
28 }
29 /* POSIX permits different handling of the spawnp
30 * system call used to launch the subsidiary
31 * program: */
32 /* Some systems fail immediately to spawn the new process. */
33 if (strstr(p, "Can't launch") != NULL && !canZstd()) {
34 skipping("This version of bsdtar uses an external zstd program "
35 "but no such program is available on this system.");
36 goto done;
37 }
38 /* Some systems successfully spawn the new process,
39 * but fail to exec a program within that process.
40 * This results in failure at the first attempt to
41 * write. */
42 if (strstr(p, "Can't write") != NULL && !canZstd()) {
43 skipping("This version of bsdtar uses an external zstd program "
44 "but no such program is available on this system.");
45 goto done;
46 }
47 /* On some systems the error won't be detected until closing
48 time, by a 127 exit error returned by waitpid. */
49 if (strstr(p, "Error closing") != NULL && !canZstd()) {
50 skipping("This version of bsdcpio uses an external zstd program "
51 "but no such program is available on this system.");
52 return;
53 }
54 failure("--zstd option is broken: %s", p);
55 assertEqualInt(r, 0);
56 goto done;
57 }
58 free(p);
59 /* Check that the archive file has an lz4 signature. */
60 p = slurpfile(&s, "archive.out");
61 assert(s > 2);
62 assertEqualMem(p, "\x28\xb5\x2f\xfd", 4);
63
64 done:
65 free(p);
66 }
67