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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2014 Michihiro NAKAJIMA
* All rights reserved.
*/
#include "test.h"
DEFINE_TEST(test_option_lz4)
{
char *p;
int r;
size_t s;
/* Create a file. */
assertMakeFile("f", 0644, "a");
/* Archive it with lz4 compression. */
r = systemf("echo f | %s -o --lz4 >archive.out 2>archive.err",
testprog);
p = slurpfile(&s, "archive.err");
p[s] = '\0';
if (r != 0) {
if (strstr(p, "compression not available") != NULL) {
skipping("This version of bsdcpio was compiled "
"without lz4 support");
free(p);
return;
}
/* POSIX permits different handling of the spawnp
* system call used to launch the subsidiary
* program: */
/* Some systems fail immediately to spawn the new process. */
if (strstr(p, "Can't launch") != NULL && !canLz4()) {
skipping("This version of bsdcpio uses an external lz4 program "
"but no such program is available on this system.");
free(p);
return;
}
/* Some systems successfully spawn the new process,
* but fail to exec a program within that process.
* This results in failure at the first attempt to
* write. */
if (strstr(p, "Can't write") != NULL && !canLz4()) {
skipping("This version of bsdcpio uses an external lz4 program "
"but no such program is available on this system.");
free(p);
return;
}
/* On some systems the error won't be detected until closing
time, by a 127 exit error returned by waitpid. */
if (strstr(p, "Error closing") != NULL && !canLz4()) {
skipping("This version of bsdcpio uses an external lz4 program "
"but no such program is available on this system.");
free(p);
return;
}
failure("--lz4 option is broken: %s", p);
free(p);
assertEqualInt(r, 0);
return;
}
free(p);
/* Check that the archive file has an lz4 signature. */
p = slurpfile(&s, "archive.out");
assert(s > 2);
assertEqualMem(p, "\x04\x22\x4d\x18", 4);
free(p);
}
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