1 /*-
2 * Copyright (c) 2012 Matthias Brantner
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
26 #include "test.h"
27
28 static unsigned long
bitcrc32(unsigned long c,void * _p,size_t s)29 bitcrc32(unsigned long c, void *_p, size_t s)
30 {
31 /* This is a drop-in replacement for crc32() from zlib.
32 * Libarchive should be able to correctly generate
33 * uncompressed zip archives (including correct CRCs) even
34 * when zlib is unavailable, and this function helps us verify
35 * that. Yes, this is very, very slow and unsuitable for
36 * production use, but it's correct, compact, and works well
37 * enough for this particular usage. Libarchive internally
38 * uses a much more efficient implementation. */
39 const unsigned char *p = _p;
40 int bitctr;
41
42 if (p == NULL)
43 return (0);
44
45 for (; s > 0; --s) {
46 c ^= *p++;
47 for (bitctr = 8; bitctr > 0; --bitctr) {
48 if (c & 1) c = (c >> 1);
49 else c = (c >> 1) ^ 0xedb88320;
50 c ^= 0x80000000;
51 }
52 }
53 return (c);
54 }
55
56 /* Quick and dirty: Read 2-byte and 4-byte integers from Zip file. */
i2(const char * p)57 static int i2(const char *p) { return ((p[0] & 0xff) | ((p[1] & 0xff) << 8)); }
i4(const char * p)58 static int i4(const char *p) { return (i2(p) | (i2(p + 2) << 16)); }
59
DEFINE_TEST(test_write_zip_set_compression_store)60 DEFINE_TEST(test_write_zip_set_compression_store)
61 {
62 /* Buffer data */
63 struct archive *a;
64 struct archive_entry *entry;
65 char buff[100000];
66 const char *buffend;
67 /* p is the pointer to walk over the central directory,
68 * q walks over the local headers, the data and the data descriptors. */
69 const char *p, *q;
70 size_t used;
71
72 /* File data */
73 char file_name[] = "file";
74 char file_data1[] = {'1', '2', '3', '4', '5'};
75 char file_data2[] = {'6', '7', '8', '9', '0'};
76 int file_perm = 00644;
77 short file_uid = 10;
78 short file_gid = 20;
79
80 /* Folder data */
81 char folder_name[] = "folder/";
82 int folder_perm = 00755;
83 short folder_uid = 30;
84 short folder_gid = 40;
85
86 /* Time data */
87 time_t t = time(NULL);
88 struct tm *tm = localtime(&t);
89
90 /* Misc variables */
91 unsigned long crc;
92
93 /* Create new ZIP archive in memory without padding. */
94 assert((a = archive_write_new()) != NULL);
95 assertA(0 == archive_write_set_format_zip(a));
96 assertA(0 == archive_write_add_filter_none(a));
97 assertA(0 == archive_write_set_bytes_per_block(a, 1));
98 assertA(0 == archive_write_set_bytes_in_last_block(a, 1));
99 assertA(0 == archive_write_open_memory(a, buff, sizeof(buff), &used));
100
101 /* Write entries. */
102
103 /* Regular file */
104 assert((entry = archive_entry_new()) != NULL);
105 archive_entry_set_pathname(entry, file_name);
106 archive_entry_set_mode(entry, S_IFREG | 0644);
107 archive_entry_set_size(entry, sizeof(file_data1) + sizeof(file_data2));
108 archive_entry_set_uid(entry, file_uid);
109 archive_entry_set_gid(entry, file_gid);
110 archive_entry_set_mtime(entry, t, 0);
111 archive_entry_set_atime(entry, t, 0);
112 archive_entry_set_ctime(entry, t, 0);
113 archive_write_zip_set_compression_store(a);
114 assertEqualIntA(a, 0, archive_write_header(a, entry));
115 assertEqualIntA(a, sizeof(file_data1), archive_write_data(a, file_data1, sizeof(file_data1)));
116 assertEqualIntA(a, sizeof(file_data2), archive_write_data(a, file_data2, sizeof(file_data2)));
117 archive_entry_free(entry);
118 archive_write_finish_entry(a);
119
120 /* Folder */
121 assert((entry = archive_entry_new()) != NULL);
122 archive_entry_set_pathname(entry, folder_name);
123 archive_entry_set_mode(entry, S_IFDIR | folder_perm);
124 archive_entry_set_size(entry, 0);
125 archive_entry_set_uid(entry, folder_uid);
126 archive_entry_set_gid(entry, folder_gid);
127 archive_entry_set_mtime(entry, t, 0);
128 archive_entry_set_atime(entry, t, 0);
129 archive_entry_set_ctime(entry, t, 0);
130 archive_write_zip_set_compression_store(a);
131 assertEqualIntA(a, 0, archive_write_header(a, entry));
132 archive_entry_free(entry);
133 archive_write_finish_entry(a);
134
135 /* Close the archive . */
136 assertEqualIntA(a, ARCHIVE_OK, archive_write_close(a));
137 assertEqualInt(ARCHIVE_OK, archive_write_free(a));
138
139 /* Remember the end of the archive in memory. */
140 buffend = buff + used;
141
142 /* Verify "End of Central Directory" record. */
143 /* Get address of end-of-central-directory record. */
144 p = buffend - 22; /* Assumes there is no zip comment field. */
145 failure("End-of-central-directory begins with PK\\005\\006 signature");
146 assertEqualMem(p, "PK\005\006", 4);
147 failure("This must be disk 0");
148 assertEqualInt(i2(p + 4), 0);
149 failure("Central dir must start on disk 0");
150 assertEqualInt(i2(p + 6), 0);
151 failure("All central dir entries are on this disk");
152 assertEqualInt(i2(p + 8), i2(p + 10));
153 failure("CD start (%d) + CD length (%d) should == archive size - 22",
154 i4(p + 12), i4(p + 16));
155 assertEqualInt(i4(p + 12) + i4(p + 16), used - 22);
156 failure("no zip comment");
157 assertEqualInt(i2(p + 20), 0);
158
159 /* Get address of first entry in central directory. */
160 p = buff + i4(buffend - 6);
161 failure("Central file record at offset %d should begin with"
162 " PK\\001\\002 signature",
163 i4(buffend - 10));
164
165 /* Verify file entry in central directory. */
166 assertEqualMem(p, "PK\001\002", 4); /* Signature */
167 assertEqualInt(i2(p + 4), 3 * 256 + 20); /* Version made by */
168 assertEqualInt(i2(p + 6), 20); /* Version needed to extract */
169 assertEqualInt(i2(p + 8), 8); /* Flags */
170 assertEqualInt(i2(p + 10), 0); /* Compression method */
171 assertEqualInt(i2(p + 12), (tm->tm_hour * 2048) + (tm->tm_min * 32) + (tm->tm_sec / 2)); /* File time */
172 assertEqualInt(i2(p + 14), ((tm->tm_year - 80) * 512) + ((tm->tm_mon + 1) * 32) + tm->tm_mday); /* File date */
173 crc = bitcrc32(0, file_data1, sizeof(file_data1));
174 crc = bitcrc32(crc, file_data2, sizeof(file_data2));
175 assertEqualInt(i4(p + 16), crc); /* CRC-32 */
176 assertEqualInt(i4(p + 20), sizeof(file_data1) + sizeof(file_data2)); /* Compressed size */
177 assertEqualInt(i4(p + 24), sizeof(file_data1) + sizeof(file_data2)); /* Uncompressed size */
178 assertEqualInt(i2(p + 28), strlen(file_name)); /* Pathname length */
179 assertEqualInt(i2(p + 30), 13); /* Extra field length */
180 assertEqualInt(i2(p + 32), 0); /* File comment length */
181 assertEqualInt(i2(p + 34), 0); /* Disk number start */
182 assertEqualInt(i2(p + 36), 0); /* Internal file attrs */
183 assertEqualInt(i4(p + 38) >> 16 & 01777, file_perm); /* External file attrs */
184 assertEqualInt(i4(p + 42), 0); /* Offset of local header */
185 assertEqualMem(p + 46, file_name, strlen(file_name)); /* Pathname */
186 p = p + 46 + strlen(file_name);
187 assertEqualInt(i2(p), 0x5455); /* 'UT' extension header */
188 assertEqualInt(i2(p + 2), 5); /* 'UT' size */
189 assertEqualInt(p[4], 7); /* 'UT' flags */
190 assertEqualInt(i4(p + 5), t); /* 'UT' mtime */
191 p = p + 9;
192 assertEqualInt(i2(p), 0x7875); /* 'ux' extension header */
193 assertEqualInt(i2(p + 2), 0); /* 'ux' size */
194 p = p + 4;
195
196 /* Verify local header of file entry. */
197 q = buff;
198 assertEqualMem(q, "PK\003\004", 4); /* Signature */
199 assertEqualInt(i2(q + 4), 20); /* Version needed to extract */
200 assertEqualInt(i2(q + 6), 8); /* Flags */
201 assertEqualInt(i2(q + 8), 0); /* Compression method */
202 assertEqualInt(i2(q + 10), (tm->tm_hour * 2048) + (tm->tm_min * 32) + (tm->tm_sec / 2)); /* File time */
203 assertEqualInt(i2(q + 12), ((tm->tm_year - 80) * 512) + ((tm->tm_mon + 1) * 32) + tm->tm_mday); /* File date */
204 assertEqualInt(i4(q + 14), 0); /* CRC-32 */
205 assertEqualInt(i4(q + 18), sizeof(file_data1) + sizeof(file_data2)); /* Compressed size */
206 assertEqualInt(i4(q + 22), sizeof(file_data1) + sizeof(file_data2)); /* Uncompressed size */
207 assertEqualInt(i2(q + 26), strlen(file_name)); /* Pathname length */
208 assertEqualInt(i2(q + 28), 32); /* Extra field length */
209 assertEqualMem(q + 30, file_name, strlen(file_name)); /* Pathname */
210 q = q + 30 + strlen(file_name);
211 assertEqualInt(i2(q), 0x5455); /* 'UT' extension header */
212 assertEqualInt(i2(q + 2), 13); /* 'UT' size */
213 assertEqualInt(q[4], 7); /* 'UT' flags */
214 assertEqualInt(i4(q + 5), t); /* 'UT' mtime */
215 assertEqualInt(i4(q + 9), t); /* 'UT' atime */
216 assertEqualInt(i4(q + 13), t); /* 'UT' ctime */
217 q = q + 17;
218 assertEqualInt(i2(q), 0x7875); /* 'ux' extension header */
219 assertEqualInt(i2(q + 2), 11); /* 'ux' size */
220 assertEqualInt(q[4], 1); /* 'ux' version */
221 assertEqualInt(q[5], 4); /* 'ux' uid size */
222 assertEqualInt(i4(q + 6), file_uid); /* 'Ux' UID */
223 assertEqualInt(q[10], 4); /* 'ux' gid size */
224 assertEqualInt(i4(q + 11), file_gid); /* 'Ux' GID */
225 q = q + 15;
226
227 /* Verify data of file entry. */
228 assertEqualMem(q, file_data1, sizeof(file_data1));
229 assertEqualMem(q + sizeof(file_data1), file_data2, sizeof(file_data2));
230 q = q + sizeof(file_data1) + sizeof(file_data2);
231
232 /* Verify data descriptor of file entry. */
233 assertEqualMem(q, "PK\007\010", 4); /* Signature */
234 assertEqualInt(i4(q + 4), crc); /* CRC-32 */
235 assertEqualInt(i4(q + 8), sizeof(file_data1) + sizeof(file_data2)); /* Compressed size */
236 assertEqualInt(i4(q + 12), sizeof(file_data1) + sizeof(file_data2)); /* Uncompressed size */
237 q = q + 16;
238
239 /* Verify folder entry in central directory. */
240 assertEqualMem(p, "PK\001\002", 4); /* Signature */
241 assertEqualInt(i2(p + 4), 3 * 256 + 20); /* Version made by */
242 assertEqualInt(i2(p + 6), 20); /* Version needed to extract */
243 assertEqualInt(i2(p + 8), 8); /* Flags */
244 assertEqualInt(i2(p + 10), 0); /* Compression method */
245 assertEqualInt(i2(p + 12), (tm->tm_hour * 2048) + (tm->tm_min * 32) + (tm->tm_sec / 2)); /* File time */
246 assertEqualInt(i2(p + 14), ((tm->tm_year - 80) * 512) + ((tm->tm_mon + 1) * 32) + tm->tm_mday); /* File date */
247 crc = 0;
248 assertEqualInt(i4(p + 16), crc); /* CRC-32 */
249 assertEqualInt(i4(p + 20), 0); /* Compressed size */
250 assertEqualInt(i4(p + 24), 0); /* Uncompressed size */
251 assertEqualInt(i2(p + 28), strlen(folder_name)); /* Pathname length */
252 assertEqualInt(i2(p + 30), 13); /* Extra field length */
253 assertEqualInt(i2(p + 32), 0); /* File comment length */
254 assertEqualInt(i2(p + 34), 0); /* Disk number start */
255 assertEqualInt(i2(p + 36), 0); /* Internal file attrs */
256 assertEqualInt(i4(p + 38) >> 16 & 01777, folder_perm); /* External file attrs */
257 assertEqualInt(i4(p + 42), q - buff); /* Offset of local header */
258 assertEqualMem(p + 46, folder_name, strlen(folder_name)); /* Pathname */
259 p = p + 46 + strlen(folder_name);
260 assertEqualInt(i2(p), 0x5455); /* 'UT' extension header */
261 assertEqualInt(i2(p + 2), 5); /* 'UT' size */
262 assertEqualInt(p[4], 7); /* 'UT' flags */
263 assertEqualInt(i4(p + 5), t); /* 'UT' mtime */
264 p = p + 9;
265 assertEqualInt(i2(p), 0x7875); /* 'ux' extension header */
266 assertEqualInt(i2(p + 2), 0); /* 'ux' size */
267 /*p = p + 4;*/
268
269 /* Verify local header of folder entry. */
270 assertEqualMem(q, "PK\003\004", 4); /* Signature */
271 assertEqualInt(i2(q + 4), 20); /* Version needed to extract */
272 assertEqualInt(i2(q + 6), 8); /* Flags */
273 assertEqualInt(i2(q + 8), 0); /* Compression method */
274 assertEqualInt(i2(q + 10), (tm->tm_hour * 2048) + (tm->tm_min * 32) + (tm->tm_sec / 2)); /* File time */
275 assertEqualInt(i2(q + 12), ((tm->tm_year - 80) * 512) + ((tm->tm_mon + 1) * 32) + tm->tm_mday); /* File date */
276 assertEqualInt(i4(q + 14), 0); /* CRC-32 */
277 assertEqualInt(i4(q + 18), 0); /* Compressed size */
278 assertEqualInt(i4(q + 22), 0); /* Uncompressed size */
279 assertEqualInt(i2(q + 26), strlen(folder_name)); /* Pathname length */
280 assertEqualInt(i2(q + 28), 32); /* Extra field length */
281 assertEqualMem(q + 30, folder_name, strlen(folder_name)); /* Pathname */
282 q = q + 30 + strlen(folder_name);
283 assertEqualInt(i2(q), 0x5455); /* 'UT' extension header */
284 assertEqualInt(i2(q + 2), 13); /* 'UT' size */
285 assertEqualInt(q[4], 7); /* 'UT' flags */
286 assertEqualInt(i4(q + 5), t); /* 'UT' mtime */
287 assertEqualInt(i4(q + 9), t); /* 'UT' atime */
288 assertEqualInt(i4(q + 13), t); /* 'UT' ctime */
289 q = q + 17;
290 assertEqualInt(i2(q), 0x7875); /* 'ux' extension header */
291 assertEqualInt(i2(q + 2), 11); /* 'ux' size */
292 assertEqualInt(q[4], 1); /* 'ux' version */
293 assertEqualInt(q[5], 4); /* 'ux' uid size */
294 assertEqualInt(i4(q + 6), folder_uid); /* 'ux' UID */
295 assertEqualInt(q[10], 4); /* 'ux' gid size */
296 assertEqualInt(i4(q + 11), folder_gid); /* 'ux' GID */
297 q = q + 15;
298
299 /* There should not be any data in the folder entry,
300 * meaning next is the data descriptor header. */
301
302 /* Verify data descriptor of folder entry. */
303 assertEqualMem(q, "PK\007\010", 4); /* Signature */
304 assertEqualInt(i4(q + 4), crc); /* CRC-32 */
305 assertEqualInt(i4(q + 8), 0); /* Compressed size */
306 assertEqualInt(i4(q + 12), 0); /* Uncompressed size */
307 /*q = q + 16;*/
308 }
309