Lev Walkin | 4eceeba | 2007-07-23 06:48:26 +0000 | [diff] [blame] | 1 | #include <stdio.h> |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 2 | #include <assert.h> |
| 3 | |
Lev Walkin | 7f35fd8 | 2013-03-28 03:13:38 -0700 | [diff] [blame] | 4 | #define EMIT_ASN_DEBUG 1 |
| 5 | #include <per_support.c> |
Lev Walkin | 4eceeba | 2007-07-23 06:48:26 +0000 | [diff] [blame] | 6 | #include <per_support.h> |
| 7 | |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 8 | static void |
| 9 | check_per_decoding() { |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 10 | uint8_t buf[] = { 0xB7, 0x19, 0x2F, 0xEE, 0xAD }; |
| 11 | uint8_t tmpbuf[10]; |
| 12 | int32_t z; |
| 13 | asn_per_data_t pos; |
Lev Walkin | fe3dc60 | 2007-06-24 08:47:29 +0000 | [diff] [blame] | 14 | memset(&pos, 0, sizeof(pos)); |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 15 | |
| 16 | pos.buffer = buf; |
| 17 | pos.nboff = 0; |
| 18 | pos.nbits = sizeof(buf) * 8; |
| 19 | |
| 20 | z = per_get_few_bits(&pos, 32); |
| 21 | assert(z == -1); |
Lev Walkin | 6036488 | 2005-11-28 06:58:11 +0000 | [diff] [blame] | 22 | assert(pos.nbits == sizeof(buf) * 8); |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 23 | |
| 24 | z = per_get_few_bits(&pos, 0); |
| 25 | assert(z == 0); |
| 26 | assert(pos.nboff == 0); |
Lev Walkin | 6036488 | 2005-11-28 06:58:11 +0000 | [diff] [blame] | 27 | assert(pos.nbits == sizeof(buf) * 8); |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 28 | |
| 29 | z = per_get_few_bits(&pos, 1); |
| 30 | assert(z == 1); |
| 31 | assert(pos.nboff == 1); |
Lev Walkin | 6036488 | 2005-11-28 06:58:11 +0000 | [diff] [blame] | 32 | assert(pos.nbits == sizeof(buf) * 8); |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 33 | |
| 34 | z = per_get_few_bits(&pos, 2); |
| 35 | assert(z == 1); |
| 36 | assert(pos.nboff == 3); |
Lev Walkin | 6036488 | 2005-11-28 06:58:11 +0000 | [diff] [blame] | 37 | assert(pos.nbits == sizeof(buf) * 8); |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 38 | |
| 39 | z = per_get_few_bits(&pos, 2); |
| 40 | assert(z == 2); |
| 41 | assert(pos.nboff == 5); |
Lev Walkin | 6036488 | 2005-11-28 06:58:11 +0000 | [diff] [blame] | 42 | assert(pos.nbits == sizeof(buf) * 8); |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 43 | |
| 44 | z = per_get_few_bits(&pos, 3); |
| 45 | assert(z == 7); |
| 46 | assert(pos.nboff == 8); |
| 47 | assert(pos.nbits == sizeof(buf) * 8); |
| 48 | |
| 49 | z = per_get_few_bits(&pos, 8); |
| 50 | assert(z == 0x19); |
| 51 | assert(pos.nboff == 8); |
| 52 | assert(pos.nbits == (sizeof(buf) - 1) * 8); |
| 53 | |
| 54 | z = per_get_few_bits(&pos, 1); |
| 55 | assert(z == 0); |
| 56 | assert(pos.nboff == 1); |
| 57 | assert(pos.nbits == (sizeof(buf) - 2) * 8); |
| 58 | |
| 59 | z = per_get_few_bits(&pos, 3); |
| 60 | assert(z == 2); |
| 61 | assert(pos.nboff == 4); |
| 62 | assert(pos.nbits == (sizeof(buf) - 2) * 8); |
| 63 | |
| 64 | z = per_get_few_bits(&pos, 8); |
| 65 | assert(z == 254); |
| 66 | assert(pos.nboff == 12); |
| 67 | |
| 68 | pos.buffer = buf; |
| 69 | pos.nboff = 2; |
| 70 | pos.nbits = sizeof(buf) * 8; |
| 71 | z = per_get_few_bits(&pos, 24); |
| 72 | assert(z == 14443711); |
| 73 | |
Lev Walkin | d2fab92 | 2013-12-07 10:58:10 -0800 | [diff] [blame] | 74 | pos.buffer = (unsigned char *)"\001"; |
Lev Walkin | 7f35fd8 | 2013-03-28 03:13:38 -0700 | [diff] [blame] | 75 | pos.nboff = 7; |
| 76 | pos.nbits = 7; |
| 77 | z = per_get_few_bits(&pos, 1); |
| 78 | assert(pos.nboff == 7); |
| 79 | assert(pos.nbits == 7); |
| 80 | assert(z == -1); |
| 81 | |
Lev Walkin | d2fab92 | 2013-12-07 10:58:10 -0800 | [diff] [blame] | 82 | pos.buffer = (unsigned char *)"\001"; |
Lev Walkin | 7f35fd8 | 2013-03-28 03:13:38 -0700 | [diff] [blame] | 83 | pos.nboff = 7; |
| 84 | pos.nbits = 8; |
| 85 | z = per_get_few_bits(&pos, 1); |
| 86 | assert(pos.nboff == 8); |
| 87 | assert(pos.nbits == 8); |
| 88 | assert(z == 1); |
| 89 | |
Lev Walkin | d2fab92 | 2013-12-07 10:58:10 -0800 | [diff] [blame] | 90 | pos.buffer = (unsigned char *)"\000"; |
Lev Walkin | 7f35fd8 | 2013-03-28 03:13:38 -0700 | [diff] [blame] | 91 | pos.nboff = 7; |
| 92 | pos.nbits = 8; |
| 93 | z = per_get_few_bits(&pos, 1); |
| 94 | assert(pos.nboff == 8); |
| 95 | assert(pos.nbits == 8); |
| 96 | assert(z == 0); |
| 97 | z = per_get_few_bits(&pos, 1); |
| 98 | assert(pos.nboff == 8); |
| 99 | assert(pos.nbits == 8); |
| 100 | assert(z == -1); |
| 101 | |
Lev Walkin | d2fab92 | 2013-12-07 10:58:10 -0800 | [diff] [blame] | 102 | pos.buffer = (unsigned char *)"\000"; |
Lev Walkin | 7f35fd8 | 2013-03-28 03:13:38 -0700 | [diff] [blame] | 103 | pos.nboff = 7; |
| 104 | pos.nbits = 9; |
| 105 | z = per_get_few_bits(&pos, 1); |
| 106 | assert(pos.nboff == 8); |
| 107 | assert(pos.nbits == 9); |
| 108 | assert(z == 0); |
| 109 | z = per_get_few_bits(&pos, 1); |
| 110 | assert(pos.nboff == 1); |
| 111 | assert(pos.nbits == 1); |
| 112 | assert(z == 0); |
| 113 | |
Lev Walkin | d2fab92 | 2013-12-07 10:58:10 -0800 | [diff] [blame] | 114 | pos.buffer = (unsigned char *)"\001"; |
Lev Walkin | 7f35fd8 | 2013-03-28 03:13:38 -0700 | [diff] [blame] | 115 | pos.nboff = 7; |
| 116 | pos.nbits = 9; |
| 117 | z = per_get_few_bits(&pos, 1); |
| 118 | assert(pos.nboff == 8); |
| 119 | assert(pos.nbits == 9); |
| 120 | assert(z == 1); |
| 121 | z = per_get_few_bits(&pos, 1); |
| 122 | assert(pos.nboff == 1); |
| 123 | assert(pos.nbits == 1); |
| 124 | assert(z == 0); |
| 125 | |
Lev Walkin | 6036488 | 2005-11-28 06:58:11 +0000 | [diff] [blame] | 126 | /* Get full 31-bit range */ |
| 127 | pos.buffer = buf; |
| 128 | pos.nboff = 7; |
| 129 | pos.nbits = sizeof(buf) * 8; |
| 130 | z = per_get_few_bits(&pos, 31); |
| 131 | assert(z == 1179384747); |
| 132 | |
| 133 | /* Get a bit shifted range */ |
| 134 | pos.buffer = buf; |
| 135 | pos.nboff = 6; |
| 136 | pos.nbits = sizeof(buf) * 8; |
| 137 | z = per_get_few_bits(&pos, 31); |
| 138 | assert(z == 1663434197); |
| 139 | |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 140 | pos.buffer = buf; |
| 141 | pos.nboff = 0; |
| 142 | pos.nbits = sizeof(buf) * 8; |
| 143 | z = per_get_many_bits(&pos, tmpbuf, 0, sizeof(buf) * 8); |
| 144 | assert(z == 0); |
| 145 | assert(buf[0] == tmpbuf[0]); |
| 146 | assert(buf[1] == tmpbuf[1]); |
| 147 | assert(buf[2] == tmpbuf[2]); |
| 148 | assert(buf[3] == tmpbuf[3]); |
| 149 | assert(buf[4] == tmpbuf[4]); |
| 150 | |
| 151 | pos.buffer = buf; |
| 152 | pos.nboff = 1; |
| 153 | pos.nbits = sizeof(buf) * 8; |
| 154 | z = per_get_many_bits(&pos, tmpbuf, 0, sizeof(buf) * 8); |
| 155 | assert(z == -1); |
| 156 | |
| 157 | pos.buffer = buf; |
| 158 | pos.nboff = 1; |
| 159 | pos.nbits = sizeof(buf) * 8; |
| 160 | z = per_get_many_bits(&pos, tmpbuf, 0, sizeof(buf) * 8 - 1); |
| 161 | assert(z == 0); |
| 162 | assert(tmpbuf[0] == 110); |
| 163 | assert(tmpbuf[1] == 50); |
| 164 | assert(tmpbuf[2] == 95); |
| 165 | assert(tmpbuf[3] == 221); |
| 166 | assert(tmpbuf[4] == 90); |
| 167 | |
| 168 | pos.buffer = buf; |
| 169 | pos.nboff = 1; |
| 170 | pos.nbits = sizeof(buf) * 8; |
| 171 | z = per_get_many_bits(&pos, tmpbuf, 1, sizeof(buf) * 8 - 1); |
| 172 | assert(z == 0); |
| 173 | assert(tmpbuf[0] == 55); |
| 174 | assert(tmpbuf[0] != buf[0]); |
| 175 | assert(tmpbuf[1] == buf[1]); |
| 176 | assert(tmpbuf[2] == buf[2]); |
| 177 | assert(tmpbuf[3] == buf[3]); |
| 178 | assert(tmpbuf[4] == buf[4]); |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 179 | } |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 180 | |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 181 | static int Ignore(const void *data, size_t size, void *op_key) { |
| 182 | return 0; |
| 183 | } |
| 184 | |
| 185 | static void |
| 186 | check_per_encoding() { |
| 187 | asn_per_outp_t po; |
Lev Walkin | 0bcb49d | 2006-09-18 21:36:30 +0000 | [diff] [blame] | 188 | int ret; |
| 189 | |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 190 | po.buffer = po.tmpspace; |
| 191 | po.nboff = 0; |
| 192 | po.nbits = 0; |
| 193 | po.outper = Ignore; |
| 194 | po.op_key = 0; |
| 195 | po.tmpspace[0] = 0xff; |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 196 | |
| 197 | ret = per_put_few_bits(&po, 0, 0); |
| 198 | assert(ret == 0); |
| 199 | assert(po.nboff == 0); |
| 200 | assert(po.buffer == po.tmpspace); |
| 201 | assert(po.tmpspace[0] == 0xff); |
| 202 | |
| 203 | ret = per_put_few_bits(&po, 0, 1); |
| 204 | assert(ret == 0); |
| 205 | assert(po.nboff == 1); |
| 206 | assert(po.nbits == 8 * sizeof(po.tmpspace)); |
| 207 | assert(po.buffer == po.tmpspace); |
| 208 | assert(po.tmpspace[0] == 0x00); |
| 209 | |
| 210 | ret = per_put_few_bits(&po, 1, 1); |
| 211 | assert(ret == 0); |
| 212 | assert(po.nboff == 2); |
| 213 | assert(po.nbits == 8 * sizeof(po.tmpspace)); |
| 214 | assert(po.buffer == po.tmpspace); |
| 215 | assert(po.tmpspace[0] == 0x40); |
| 216 | |
| 217 | ret = per_put_few_bits(&po, 1, 1); |
| 218 | assert(ret == 0); |
| 219 | assert(po.nboff == 3); |
| 220 | assert(po.nbits == 8 * sizeof(po.tmpspace)); |
| 221 | assert(po.buffer == po.tmpspace); |
| 222 | assert(po.tmpspace[0] == 0x60); |
| 223 | |
| 224 | ret = per_put_few_bits(&po, 15, 5); |
| 225 | assert(ret == 0); |
| 226 | assert(po.nboff == 8); |
| 227 | assert(po.nbits == 8 * sizeof(po.tmpspace)); |
| 228 | assert(po.buffer == po.tmpspace); |
| 229 | assert(po.tmpspace[0] == 0x6F); |
| 230 | |
| 231 | ret = per_put_few_bits(&po, 0xf0ff, 16); |
| 232 | assert(ret == 0); |
| 233 | assert(po.nboff == 16); |
| 234 | assert(po.nbits == 8 * sizeof(po.tmpspace) - 8); |
| 235 | assert(po.buffer == po.tmpspace + 1); |
| 236 | assert(po.tmpspace[0] == 0x6F); |
| 237 | assert(po.tmpspace[1] == 0xf0); |
| 238 | assert(po.tmpspace[2] == 0xff); |
| 239 | |
| 240 | po.nboff--; |
| 241 | |
| 242 | ret = per_put_few_bits(&po, 2, 1); |
| 243 | assert(ret == 0); |
| 244 | assert(po.nboff == 8); |
| 245 | assert(po.nbits == 8 * sizeof(po.tmpspace) - 16); |
| 246 | assert(po.buffer == po.tmpspace + 2); |
| 247 | assert(po.tmpspace[0] == 0x6F); |
| 248 | assert(po.tmpspace[1] == 0xf0); |
| 249 | assert(po.tmpspace[2] == 0xfe); |
| 250 | |
| 251 | ret = per_put_few_bits(&po, 2, 32); |
| 252 | assert(ret == -1); |
| 253 | |
| 254 | ret = per_put_few_bits(&po, 2, -1); |
| 255 | assert(ret == -1); |
| 256 | |
| 257 | ret = per_put_few_bits(&po, -1, 31); |
| 258 | assert(ret == 0); |
| 259 | assert(po.nboff == 31); |
| 260 | assert(po.nbits == 8 * sizeof(po.tmpspace) - 24); |
| 261 | assert(po.buffer == po.tmpspace + 3); |
| 262 | assert(po.tmpspace[0] == 0x6F); |
| 263 | assert(po.tmpspace[1] == 0xf0); |
| 264 | assert(po.tmpspace[2] == 0xfe); |
| 265 | assert(po.tmpspace[3] == 0xff); |
| 266 | assert(po.tmpspace[4] == 0xff); |
| 267 | assert(po.tmpspace[5] == 0xff); |
| 268 | assert(po.tmpspace[6] == 0xfe); |
| 269 | |
Lev Walkin | 109ade5 | 2010-10-24 20:48:05 -0700 | [diff] [blame] | 270 | } |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 271 | |
Lev Walkin | 15b8243 | 2012-01-06 03:19:01 -0800 | [diff] [blame] | 272 | /* |
| 273 | * Add N bits after P bits. Should result in N+P bits added. |
| 274 | */ |
| 275 | static void |
| 276 | check_per_encoding_auto() { |
| 277 | int prior, next; |
| 278 | int ret, i; |
| 279 | |
| 280 | for(prior = 0; prior <= 31; prior++) { |
| 281 | for(next = 0; next <= 31; next++) { |
| 282 | asn_per_outp_t po; |
| 283 | po.buffer = po.tmpspace; |
| 284 | po.nboff = 0; |
| 285 | po.nbits = 0; |
| 286 | po.outper = Ignore; |
| 287 | po.op_key = 0; |
| 288 | po.tmpspace[0] = 0xff; |
| 289 | |
| 290 | ret = per_put_few_bits(&po, -1, prior); |
| 291 | assert(ret == 0); |
| 292 | |
| 293 | fprintf(stderr, " (out{nboff=%d,nbits=%d,buf_offset=%d})\n", (int)po.nboff, (int)po.nbits, (int)(po.buffer - po.tmpspace)); |
| 294 | |
| 295 | ret = per_put_few_bits(&po, -1, next); |
| 296 | assert(ret == 0); |
| 297 | |
| 298 | fprintf(stderr, " (out{nboff=%d,nbits=%d,buf_offset=%d})\n", (int)po.nboff, (int)po.nbits, (int)(po.buffer - po.tmpspace)); |
| 299 | |
| 300 | fprintf(stderr, "Putting %d + %d bits (%d/%d), got %d bytes and %d bits\n", |
| 301 | prior, next, (prior + next) / 8, (prior + next) % 8, |
| 302 | (int)(po.buffer - po.tmpspace), (int)po.nboff); |
| 303 | assert((po.buffer - po.tmpspace) * 8 + po.nboff == prior + next); |
| 304 | for(i = 0; i < (po.buffer - po.tmpspace); i++) |
| 305 | assert(po.tmpspace[0] == (unsigned char)-1); |
| 306 | } |
| 307 | } |
| 308 | } |
| 309 | |
Lev Walkin | 109ade5 | 2010-10-24 20:48:05 -0700 | [diff] [blame] | 310 | static void |
| 311 | check_per_encoding_sweep_with(uint8_t buf[], int already_bits, int add_bits) { |
| 312 | size_t buf_size = 8; |
| 313 | asn_per_data_t pos; |
| 314 | asn_per_outp_t out; |
| 315 | int32_t d_already; |
| 316 | int32_t d_add; |
| 317 | int32_t d_left; |
| 318 | int left_bits; |
| 319 | int i; |
| 320 | |
| 321 | memset(&pos, 0, sizeof(pos)); |
| 322 | pos.buffer = buf; |
| 323 | pos.nboff = 0; |
| 324 | pos.nbits = buf_size * 8; |
| 325 | |
| 326 | memset(&out, 0, sizeof(out)); |
| 327 | out.buffer = out.tmpspace; |
| 328 | out.nbits = 8 * sizeof(out.tmpspace); |
| 329 | assert(sizeof(out.tmpspace) >= buf_size); |
| 330 | memcpy(out.buffer, buf, buf_size); |
| 331 | |
| 332 | d_already = per_get_few_bits(&pos, already_bits); |
| 333 | d_add = per_get_few_bits(&pos, add_bits); |
| 334 | |
| 335 | per_put_few_bits(&out, d_already, already_bits); |
| 336 | per_put_few_bits(&out, d_add, add_bits); |
| 337 | if(out.nboff % 8) { |
| 338 | left_bits = 8 - (out.nboff % 8); |
| 339 | d_left = per_get_few_bits(&pos, left_bits); |
| 340 | } else { |
| 341 | left_bits = 0; |
| 342 | d_left = 0; |
| 343 | } |
| 344 | per_put_few_bits(&out, d_left, left_bits); |
| 345 | assert(0 == (out.nboff % 8)); |
| 346 | |
| 347 | if(0 != memcmp(out.tmpspace, buf, buf_size)) { |
| 348 | printf("IN: "); |
| 349 | for(i = 0; i < buf_size; i++) |
| 350 | printf(" %02x", buf[i]); |
| 351 | printf("\nOUT:"); |
| 352 | for(i = 0; i < buf_size; i++) |
| 353 | printf(" %02x", out.tmpspace[i]); |
| 354 | printf(" (out{nboff=%d,left=%d,%02x})\n", (int)out.nboff, left_bits, (int)d_left); |
| 355 | assert(0 == memcmp(out.tmpspace, buf, buf_size)); |
| 356 | } |
| 357 | } |
| 358 | |
| 359 | static void |
| 360 | check_per_encoding_sweep() { |
| 361 | uint8_t buf[3][8] = { |
| 362 | { 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA }, |
| 363 | { 0xB7, 0x19, 0x2F, 0xEE, 0xAD, 0x11, 0xAA, 0x55 }, |
| 364 | { 0xEE, 0xAD, 0x11, 0xAA, 0x55, 0xB7, 0x19, 0x2F } |
| 365 | }; |
| 366 | int already_bits; |
| 367 | int add_bits; |
| 368 | int buf_idx; |
| 369 | |
| 370 | for(buf_idx = 0; buf_idx < 3; buf_idx++) { |
| 371 | for(already_bits = 0; already_bits < 24; already_bits++) { |
| 372 | for(add_bits = 0; add_bits <= 31; add_bits++) { |
| 373 | /*fprintf(stderr, "PER %d += %d\n", already_bits, add_bits);*/ |
| 374 | check_per_encoding_sweep_with(buf[buf_idx], already_bits, add_bits); |
| 375 | } |
| 376 | } |
| 377 | } |
Lev Walkin | 523de9e | 2006-08-18 01:34:18 +0000 | [diff] [blame] | 378 | } |
| 379 | |
| 380 | int |
| 381 | main() { |
| 382 | check_per_decoding(); |
| 383 | check_per_encoding(); |
Lev Walkin | 15b8243 | 2012-01-06 03:19:01 -0800 | [diff] [blame] | 384 | check_per_encoding_auto(); |
Lev Walkin | 109ade5 | 2010-10-24 20:48:05 -0700 | [diff] [blame] | 385 | check_per_encoding_sweep(); |
Lev Walkin | 59b176e | 2005-11-26 11:25:14 +0000 | [diff] [blame] | 386 | return 0; |
| 387 | } |