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("$FreeBSD$"); 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 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 %jd " 218 "should be zero", name, 219 (intmax_t)actual.o); 220 assertEqualInt(c, 0); 221 } else if (actual.o == expect.o) { 222 /* 223 * Data at matching offsets must match. 224 */ 225 assertEqualInt(c, *expect.d); 226 expect.d++; 227 expect.o++; 228 expect.s--; 229 /* End of expected? step to next expected. */ 230 if (expect.s <= 0) 231 expect = *cts++; 232 } else { 233 /* 234 * We found data beyond that expected. 235 */ 236 failure("%s: Unexpected trailing data", 237 name); 238 assert(actual.o <= expect.o); 239 archive_read_free(a); 240 return; 241 } 242 actual.d++; 243 actual.o++; 244 actual.s--; 245 } 246 } 247 failure("%s: should be end of entry", name); 248 assertEqualIntA(a, err, ARCHIVE_EOF); 249 failure("%s: Size returned at EOF must be zero", name); 250 assertEqualInt((int)actual.s, 0); 251 failure("%s: Offset of final empty chunk must be same as file size", name); 252 assertEqualInt(actual.o, expect.o); 253 /* Step to next file description. */ 254 ++ac; 255 } 256 257 err = archive_read_next_header(a, &ae); 258 assertEqualIntA(a, ARCHIVE_EOF, err); 259 260 assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a)); 261 assertEqualInt(ARCHIVE_OK, archive_read_free(a)); 262 } 263 264 265 DEFINE_TEST(test_read_format_gtar_sparse) 266 { 267 /* Two archives that use the "GNU tar sparse format". */ 268 verify_archive_file("test_read_format_gtar_sparse_1_13.tar", files); 269 verify_archive_file("test_read_format_gtar_sparse_1_17.tar", files); 270 271 /* 272 * libarchive < 1.9 doesn't support the newer --posix sparse formats 273 * from GNU tar 1.15 and later. 274 */ 275 276 /* 277 * An archive created by GNU tar 1.17 using --posix --sparse-format=0.1 278 */ 279 verify_archive_file( 280 "test_read_format_gtar_sparse_1_17_posix00.tar", 281 files); 282 /* 283 * An archive created by GNU tar 1.17 using --posix --sparse-format=0.1 284 */ 285 verify_archive_file( 286 "test_read_format_gtar_sparse_1_17_posix01.tar", 287 files); 288 /* 289 * An archive created by GNU tar 1.17 using --posix --sparse-format=1.0 290 */ 291 verify_archive_file( 292 "test_read_format_gtar_sparse_1_17_posix10.tar", 293 files); 294 /* 295 * The last test archive here is a little odd. First, it's 296 * uncompressed, because that exercises some of the block 297 * reassembly code a little harder. Second, it includes some 298 * leading comments prior to the sparse block description. 299 * GNU tar doesn't do this, but I think it should, so I want 300 * to ensure that libarchive correctly ignores such comments. 301 * Dump the file, looking for "#!gnu-sparse-format" starting 302 * at byte 0x600. 303 */ 304 verify_archive_file( 305 "test_read_format_gtar_sparse_1_17_posix10_modified.tar", 306 files); 307 } 308 309 310