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843fecc0 RC |
1 | /*** |
2 | This file is part of systemd | |
3 | ||
4 | Copyright 2014 Ronny Chevalier | |
5 | ||
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. | |
10 | ||
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. | |
15 | ||
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/>. | |
18 | ***/ | |
19 | ||
20 | #include "compress.h" | |
21 | #include "util.h" | |
22 | #include "macro.h" | |
23 | ||
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"; | |
27 | char compressed[512]; | |
28 | uint64_t csize = 512; | |
29 | uint64_t usize = 0; | |
30 | _cleanup_free_ char *uncompressed = NULL; | |
31 | ||
32 | assert_se(compress_blob(text, sizeof(text), compressed, &csize)); | |
33 | assert_se(uncompress_blob(compressed, | |
34 | csize, | |
35 | (void **) &uncompressed, | |
36 | &usize, &csize, 0)); | |
37 | assert_se(uncompressed); | |
38 | assert_se(streq(uncompressed, text)); | |
39 | assert_se(!uncompress_blob("garbage", | |
40 | 7, | |
41 | (void **) &uncompressed, | |
42 | &usize, &csize, 0)); | |
43 | } | |
44 | ||
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"; | |
48 | char compressed[512]; | |
49 | uint64_t csize = 512; | |
50 | uint64_t usize = 0; | |
51 | _cleanup_free_ char *uncompressed = NULL; | |
52 | ||
53 | assert_se(compress_blob(text, sizeof(text), compressed, &csize)); | |
54 | assert_se(uncompress_startswith(compressed, | |
55 | csize, | |
56 | (void **) &uncompressed, | |
57 | &usize, | |
58 | "foofoofoofoo", 12, ' ')); | |
59 | assert_se(!uncompress_startswith(compressed, | |
60 | csize, | |
61 | (void **) &uncompressed, | |
62 | &usize, | |
63 | "foofoofoofoo", 12, 'w')); | |
64 | assert_se(!uncompress_startswith(compressed, | |
65 | csize, | |
66 | (void **) &uncompressed, | |
67 | &usize, | |
68 | "barbarbar", 9, ' ')); | |
69 | } | |
70 | ||
355b59e2 ZJS |
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"; | |
75 | int r; | |
76 | _cleanup_free_ char *cmd, *cmd2; | |
77 | struct stat st = {}; | |
78 | ||
79 | log_debug("/* create source from %s */", srcfile); | |
80 | ||
81 | assert_se((src = open(srcfile, O_RDONLY|O_CLOEXEC)) >= 0); | |
82 | ||
83 | log_debug("/* test compression */"); | |
84 | ||
85 | assert_se((dst = mkostemp_safe(pattern, O_RDWR|O_CLOEXEC)) >= 0); | |
86 | ||
34727273 | 87 | r = compress_stream(src, dst, 1, -1); |
355b59e2 ZJS |
88 | assert(r == 0); |
89 | ||
90 | assert_se(asprintf(&cmd, "xzcat %s | diff %s -", pattern, srcfile) > 0); | |
91 | assert_se(system(cmd) == 0); | |
92 | ||
93 | log_debug("/* test decompression */"); | |
94 | ||
95 | assert_se((dst2 = mkostemp_safe(pattern2, O_RDWR|O_CLOEXEC)) >= 0); | |
96 | ||
97 | assert_se(stat(srcfile, &st) == 0); | |
98 | ||
99 | assert_se(lseek(dst, 0, SEEK_SET) == 0); | |
100 | r = decompress_stream(dst, dst2, st.st_size); | |
101 | assert(r == 0); | |
102 | ||
103 | assert_se(asprintf(&cmd2, "diff %s %s", srcfile, pattern2) > 0); | |
104 | assert_se(system(cmd2) == 0); | |
105 | ||
106 | log_debug("/* test faulty decompression */"); | |
107 | ||
108 | assert_se(lseek(dst, 1, SEEK_SET) == 1); | |
109 | r = decompress_stream(dst, dst2, st.st_size); | |
110 | assert(r == -EBADMSG); | |
111 | ||
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); | |
115 | assert(r == -E2BIG); | |
116 | ||
117 | assert_se(unlink(pattern) == 0); | |
118 | assert_se(unlink(pattern2) == 0); | |
119 | } | |
120 | ||
843fecc0 | 121 | int main(int argc, char *argv[]) { |
355b59e2 ZJS |
122 | |
123 | log_set_max_level(LOG_DEBUG); | |
124 | ||
843fecc0 RC |
125 | test_compress_uncompress(); |
126 | test_uncompress_startswith(); | |
355b59e2 | 127 | test_compress_stream(argv[0]); |
843fecc0 RC |
128 | |
129 | return 0; | |
130 | } |