1 /*-
2 * Copyright (c) 2003-2007 Tim Kientzle
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 __FBSDID("$FreeBSD: head/lib/libarchive/test/test_read_format_gtar_sparse.c 189308 2009-03-03 17:02:51Z kientzle $");
27
28
29 struct contents {
30 int64_t o;
31 size_t s;
32 const char *d;
33 };
34
35 struct contents archive_contents_sparse[] = {
36 { 1000000, 1, "a" },
37 { 2000000, 1, "a" },
38 { 3145728, 0, NULL }
39 };
40
41 struct contents archive_contents_sparse2[] = {
42 { 1000000, 1, "a" },
43 { 2000000, 1, "a" },
44 { 3000000, 1, "a" },
45 { 4000000, 1, "a" },
46 { 5000000, 1, "a" },
47 { 6000000, 1, "a" },
48 { 7000000, 1, "a" },
49 { 8000000, 1, "a" },
50 { 9000000, 1, "a" },
51 { 10000000, 1, "a" },
52 { 11000000, 1, "a" },
53 { 12000000, 1, "a" },
54 { 13000000, 1, "a" },
55 { 14000000, 1, "a" },
56 { 15000000, 1, "a" },
57 { 16000000, 1, "a" },
58 { 17000000, 1, "a" },
59 { 18000000, 1, "a" },
60 { 19000000, 1, "a" },
61 { 20000000, 1, "a" },
62 { 21000000, 1, "a" },
63 { 22000000, 1, "a" },
64 { 23000000, 1, "a" },
65 { 24000000, 1, "a" },
66 { 25000000, 1, "a" },
67 { 26000000, 1, "a" },
68 { 27000000, 1, "a" },
69 { 28000000, 1, "a" },
70 { 29000000, 1, "a" },
71 { 30000000, 1, "a" },
72 { 31000000, 1, "a" },
73 { 32000000, 1, "a" },
74 { 33000000, 1, "a" },
75 { 34000000, 1, "a" },
76 { 35000000, 1, "a" },
77 { 36000000, 1, "a" },
78 { 37000000, 1, "a" },
79 { 38000000, 1, "a" },
80 { 39000000, 1, "a" },
81 { 40000000, 1, "a" },
82 { 41000000, 1, "a" },
83 { 42000000, 1, "a" },
84 { 43000000, 1, "a" },
85 { 44000000, 1, "a" },
86 { 45000000, 1, "a" },
87 { 46000000, 1, "a" },
88 { 47000000, 1, "a" },
89 { 48000000, 1, "a" },
90 { 49000000, 1, "a" },
91 { 50000000, 1, "a" },
92 { 51000000, 1, "a" },
93 { 52000000, 1, "a" },
94 { 53000000, 1, "a" },
95 { 54000000, 1, "a" },
96 { 55000000, 1, "a" },
97 { 56000000, 1, "a" },
98 { 57000000, 1, "a" },
99 { 58000000, 1, "a" },
100 { 59000000, 1, "a" },
101 { 60000000, 1, "a" },
102 { 61000000, 1, "a" },
103 { 62000000, 1, "a" },
104 { 63000000, 1, "a" },
105 { 64000000, 1, "a" },
106 { 65000000, 1, "a" },
107 { 66000000, 1, "a" },
108 { 67000000, 1, "a" },
109 { 68000000, 1, "a" },
110 { 69000000, 1, "a" },
111 { 70000000, 1, "a" },
112 { 71000000, 1, "a" },
113 { 72000000, 1, "a" },
114 { 73000000, 1, "a" },
115 { 74000000, 1, "a" },
116 { 75000000, 1, "a" },
117 { 76000000, 1, "a" },
118 { 77000000, 1, "a" },
119 { 78000000, 1, "a" },
120 { 79000000, 1, "a" },
121 { 80000000, 1, "a" },
122 { 81000000, 1, "a" },
123 { 82000000, 1, "a" },
124 { 83000000, 1, "a" },
125 { 84000000, 1, "a" },
126 { 85000000, 1, "a" },
127 { 86000000, 1, "a" },
128 { 87000000, 1, "a" },
129 { 88000000, 1, "a" },
130 { 89000000, 1, "a" },
131 { 90000000, 1, "a" },
132 { 91000000, 1, "a" },
133 { 92000000, 1, "a" },
134 { 93000000, 1, "a" },
135 { 94000000, 1, "a" },
136 { 95000000, 1, "a" },
137 { 96000000, 1, "a" },
138 { 97000000, 1, "a" },
139 { 98000000, 1, "a" },
140 { 99000000, 1, "a" },
141 { 99000001, 0, NULL }
142 };
143
144 struct contents archive_contents_nonsparse[] = {
145 { 0, 1, "a" },
146 { 1, 0, NULL }
147 };
148
149 /*
150 * Describe an archive with three entries:
151 *
152 * File 1: named "sparse"
153 * * a length of 3145728 bytes (3MiB)
154 * * a single 'a' byte at offset 1000000
155 * * a single 'a' byte at offset 2000000
156 * File 2: named "sparse2"
157 * * a single 'a' byte at offset 1,000,000, 2,000,000, ..., 99,000,000
158 * * length of 99,000,001
159 * File 3: named 'non-sparse'
160 * * length of 1 byte
161 * * contains a single byte 'a'
162 */
163
164 struct archive_contents {
165 const char *filename;
166 struct contents *contents;
167 } files[] = {
168 { "sparse", archive_contents_sparse },
169 { "sparse2", archive_contents_sparse2 },
170 { "non-sparse", archive_contents_nonsparse },
171 { NULL, NULL }
172 };
173
174 static void
verify_archive_file(const char * name,struct archive_contents * ac)175 verify_archive_file(const char *name, struct archive_contents *ac)
176 {
177 struct archive_entry *ae;
178 int err;
179 /* data, size, offset of next expected block. */
180 struct contents expect;
181 /* data, size, offset of block read from archive. */
182 struct contents actual;
183 const void *p;
184 struct archive *a;
185
186 extract_reference_file(name);
187
188 assert((a = archive_read_new()) != NULL);
189 assert(0 == archive_read_support_filter_all(a));
190 assert(0 == archive_read_support_format_tar(a));
191 failure("Can't open %s", name);
192 assert(0 == archive_read_open_filename(a, name, 3));
193
194 while (ac->filename != NULL) {
195 struct contents *cts = ac->contents;
196
197 if (!assertEqualIntA(a, 0, archive_read_next_header(a, &ae))) {
198 assertEqualInt(ARCHIVE_OK, archive_read_free(a));
199 return;
200 }
201 failure("Name mismatch in archive %s", name);
202 assertEqualString(ac->filename, archive_entry_pathname(ae));
203 assertEqualInt(archive_entry_is_encrypted(ae), 0);
204 assertEqualIntA(a, archive_read_has_encrypted_entries(a), ARCHIVE_READ_FORMAT_ENCRYPTION_UNSUPPORTED);
205
206 expect = *cts++;
207 while (0 == (err = archive_read_data_block(a,
208 &p, &actual.s, &actual.o))) {
209 actual.d = p;
210 while (actual.s > 0) {
211 char c = *actual.d;
212 if(actual.o < expect.o) {
213 /*
214 * Any byte before the expected
215 * data must be NULL.
216 */
217 failure("%s: pad at offset %d "
218 "should be zero", name, actual.o);
219 assertEqualInt(c, 0);
220 } else if (actual.o == expect.o) {
221 /*
222 * Data at matching offsets must match.
223 */
224 assertEqualInt(c, *expect.d);
225 expect.d++;
226 expect.o++;
227 expect.s--;
228 /* End of expected? step to next expected. */
229 if (expect.s <= 0)
230 expect = *cts++;
231 } else {
232 /*
233 * We found data beyond that expected.
234 */
235 failure("%s: Unexpected trailing data",
236 name);
237 assert(actual.o <= expect.o);
238 archive_read_free(a);
239 return;
240 }
241 actual.d++;
242 actual.o++;
243 actual.s--;
244 }
245 }
246 failure("%s: should be end of entry", name);
247 assertEqualIntA(a, err, ARCHIVE_EOF);
248 failure("%s: Size returned at EOF must be zero", name);
249 assertEqualInt((int)actual.s, 0);
250 failure("%s: Offset of final empty chunk must be same as file size", name);
251 assertEqualInt(actual.o, expect.o);
252 /* Step to next file description. */
253 ++ac;
254 }
255
256 err = archive_read_next_header(a, &ae);
257 assertEqualIntA(a, ARCHIVE_EOF, err);
258
259 assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
260 assertEqualInt(ARCHIVE_OK, archive_read_free(a));
261 }
262
263
DEFINE_TEST(test_read_format_gtar_sparse)264 DEFINE_TEST(test_read_format_gtar_sparse)
265 {
266 /* Two archives that use the "GNU tar sparse format". */
267 verify_archive_file("test_read_format_gtar_sparse_1_13.tar", files);
268 verify_archive_file("test_read_format_gtar_sparse_1_17.tar", files);
269
270 /*
271 * libarchive < 1.9 doesn't support the newer --posix sparse formats
272 * from GNU tar 1.15 and later.
273 */
274
275 /*
276 * An archive created by GNU tar 1.17 using --posix --sparse-format=0.1
277 */
278 verify_archive_file(
279 "test_read_format_gtar_sparse_1_17_posix00.tar",
280 files);
281 /*
282 * An archive created by GNU tar 1.17 using --posix --sparse-format=0.1
283 */
284 verify_archive_file(
285 "test_read_format_gtar_sparse_1_17_posix01.tar",
286 files);
287 /*
288 * An archive created by GNU tar 1.17 using --posix --sparse-format=1.0
289 */
290 verify_archive_file(
291 "test_read_format_gtar_sparse_1_17_posix10.tar",
292 files);
293 /*
294 * The last test archive here is a little odd. First, it's
295 * uncompressed, because that exercises some of the block
296 * reassembly code a little harder. Second, it includes some
297 * leading comments prior to the sparse block description.
298 * GNU tar doesn't do this, but I think it should, so I want
299 * to ensure that libarchive correctly ignores such comments.
300 * Dump the file, looking for "#!gnu-sparse-format" starting
301 * at byte 0x600.
302 */
303 verify_archive_file(
304 "test_read_format_gtar_sparse_1_17_posix10_modified.tar",
305 files);
306 }
307
308
309