1/*-
2 * Copyright (c) 2017 Sean Purcell
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25#include "test.h"
26
27DEFINE_TEST(test_option_zstd)
28{
29	char *p;
30	int r;
31	size_t s;
32
33	/* Create a file. */
34	assertMakeFile("f", 0644, "a");
35
36	/* Archive it with zstd compression. */
37	r = systemf("echo f | %s -o --zstd >archive.out 2>archive.err",
38	    testprog);
39	p = slurpfile(&s, "archive.err");
40	p[s] = '\0';
41	if (r != 0) {
42		if (strstr(p, "Unsupported compression") != NULL) {
43			skipping("This version of bsdcpio was compiled "
44			    "without zstd support");
45			goto done;
46		}
47		/* POSIX permits different handling of the spawnp
48		 * system call used to launch the subsidiary
49		 * program: */
50		/* Some systems fail immediately to spawn the new process. */
51		if (strstr(p, "Can't launch") != NULL && !canZstd()) {
52			skipping("This version of bsdcpio uses an external zstd program "
53			    "but no such program is available on this system.");
54			goto done;
55		}
56		/* Some systems successfully spawn the new process,
57		 * but fail to exec a program within that process.
58		 * This results in failure at the first attempt to
59		 * write. */
60		if (strstr(p, "Can't write") != NULL && !canZstd()) {
61			skipping("This version of bsdcpio uses an external zstd program "
62			    "but no such program is available on this system.");
63			goto done;
64		}
65		/* On some systems the error won't be detected until closing
66		   time, by a 127 exit error returned by waitpid. */
67		if (strstr(p, "Error closing") != NULL && !canZstd()) {
68			skipping("This version of bsdcpio uses an external zstd program "
69			    "but no such program is available on this system.");
70			return;
71		}
72		failure("--zstd option is broken: %s", p);
73		assertEqualInt(r, 0);
74		goto done;
75	}
76	free(p);
77	/* Check that the archive file has an zstd signature. */
78	p = slurpfile(&s, "archive.out");
79	assert(s > 2);
80	assertEqualMem(p, "\x28\xb5\x2f\xfd", 4);
81
82done:
83	free(p);
84}
85