2 This file is part of systemd
4 Copyright 2014 Ronny Chevalier
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
11 systemd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 static void test_compress_uncompress(void) {
25 char text[] = "foofoofoofoo AAAA aaaaaaaaa ghost busters barbarbar FFF"
26 "foofoofoofoo AAAA aaaaaaaaa ghost busters barbarbar FFF";
30 _cleanup_free_ char *uncompressed = NULL;
32 assert_se(compress_blob(text, sizeof(text), compressed, &csize));
33 assert_se(uncompress_blob(compressed,
35 (void **) &uncompressed,
37 assert_se(uncompressed);
38 assert_se(streq(uncompressed, text));
39 assert_se(!uncompress_blob("garbage",
41 (void **) &uncompressed,
45 static void test_uncompress_startswith(void) {
46 char text[] = "foofoofoofoo AAAA aaaaaaaaa ghost busters barbarbar FFF"
47 "foofoofoofoo AAAA aaaaaaaaa ghost busters barbarbar FFF";
51 _cleanup_free_ char *uncompressed = NULL;
53 assert_se(compress_blob(text, sizeof(text), compressed, &csize));
54 assert_se(uncompress_startswith(compressed,
56 (void **) &uncompressed,
58 "foofoofoofoo", 12, ' '));
59 assert_se(!uncompress_startswith(compressed,
61 (void **) &uncompressed,
63 "foofoofoofoo", 12, 'w'));
64 assert_se(!uncompress_startswith(compressed,
66 (void **) &uncompressed,
68 "barbarbar", 9, ' '));
71 static void test_compress_stream(const char *srcfile) {
72 _cleanup_close_ int src = -1, dst = -1, dst2 = -1;
73 char pattern[] = "/tmp/systemd-test.xz.XXXXXX",
74 pattern2[] = "/tmp/systemd-test.xz.XXXXXX";
76 _cleanup_free_ char *cmd, *cmd2;
79 log_debug("/* create source from %s */", srcfile);
81 assert_se((src = open(srcfile, O_RDONLY|O_CLOEXEC)) >= 0);
83 log_debug("/* test compression */");
85 assert_se((dst = mkostemp_safe(pattern, O_RDWR|O_CLOEXEC)) >= 0);
87 r = compress_stream(src, dst, 1, -1);
90 assert_se(asprintf(&cmd, "xzcat %s | diff %s -", pattern, srcfile) > 0);
91 assert_se(system(cmd) == 0);
93 log_debug("/* test decompression */");
95 assert_se((dst2 = mkostemp_safe(pattern2, O_RDWR|O_CLOEXEC)) >= 0);
97 assert_se(stat(srcfile, &st) == 0);
99 assert_se(lseek(dst, 0, SEEK_SET) == 0);
100 r = decompress_stream(dst, dst2, st.st_size);
103 assert_se(asprintf(&cmd2, "diff %s %s", srcfile, pattern2) > 0);
104 assert_se(system(cmd2) == 0);
106 log_debug("/* test faulty decompression */");
108 assert_se(lseek(dst, 1, SEEK_SET) == 1);
109 r = decompress_stream(dst, dst2, st.st_size);
110 assert(r == -EBADMSG);
112 assert_se(lseek(dst, 0, SEEK_SET) == 0);
113 assert_se(lseek(dst2, 0, SEEK_SET) == 0);
114 r = decompress_stream(dst, dst2, st.st_size - 1);
117 assert_se(unlink(pattern) == 0);
118 assert_se(unlink(pattern2) == 0);
121 int main(int argc, char *argv[]) {
123 log_set_max_level(LOG_DEBUG);
125 test_compress_uncompress();
126 test_uncompress_startswith();
127 test_compress_stream(argv[0]);