vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Mode of operation: |
| 3 | * Each of the *.in files is XER-decoded, then converted into PER, |
| 4 | * compared with *.out file, then decoded and compared with the original. |
| 5 | */ |
| 6 | #undef NDEBUG |
| 7 | #include <stdio.h> |
| 8 | #include <stdlib.h> |
| 9 | #include <sys/types.h> |
| 10 | #include <unistd.h> /* for chdir(2) */ |
| 11 | #include <string.h> |
| 12 | #include <dirent.h> |
| 13 | #include <assert.h> |
| 14 | #include <ctype.h> |
| 15 | #include <errno.h> |
| 16 | |
| 17 | #include <PDU.h> |
| 18 | |
| 19 | static unsigned char buf[4096]; |
| 20 | static int buf_offset; |
| 21 | |
| 22 | static int |
| 23 | _buf_writer(const void *buffer, size_t size, void *app_key) { |
| 24 | unsigned char *b, *bend; |
| 25 | (void)app_key; |
| 26 | assert(buf_offset + size < sizeof(buf)); |
| 27 | memcpy(buf + buf_offset, buffer, size); |
| 28 | b = buf + buf_offset; |
| 29 | bend = b + size; |
| 30 | fprintf(stderr, "=> ["); |
| 31 | for(; b < bend; b++) { |
| 32 | if(*b >= 32 && *b < 127 && *b != '%') |
| 33 | fprintf(stderr, "%c", *b); |
| 34 | else |
| 35 | fprintf(stderr, "%%%02x", *b); |
| 36 | } |
| 37 | fprintf(stderr, "]:%ld\n", (long)size); |
| 38 | buf_offset += size; |
| 39 | return 0; |
| 40 | } |
| 41 | |
| 42 | enum enctype { |
| 43 | AS_PER, |
| 44 | AS_DER, |
| 45 | AS_XER, |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 46 | }; |
| 47 | |
| 48 | static void |
| 49 | save_object_as(PDU_t *st, enum enctype how) { |
| 50 | asn_enc_rval_t rval; /* Return value */ |
| 51 | |
| 52 | buf_offset = 0; |
| 53 | |
| 54 | /* |
| 55 | * Save object using specified method. |
| 56 | */ |
| 57 | switch(how) { |
| 58 | case AS_PER: |
| 59 | rval = uper_encode(&asn_DEF_PDU, st, _buf_writer, 0); |
| 60 | assert(rval.encoded > 0); |
| 61 | fprintf(stderr, "SAVED OBJECT IN SIZE %d\n", buf_offset); |
| 62 | return; |
| 63 | case AS_DER: |
| 64 | rval = der_encode(&asn_DEF_PDU, st, |
| 65 | _buf_writer, 0); |
| 66 | break; |
| 67 | case AS_XER: |
| 68 | rval = xer_encode(&asn_DEF_PDU, st, XER_F_BASIC, |
| 69 | _buf_writer, 0); |
| 70 | break; |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 71 | } |
| 72 | |
| 73 | if (rval.encoded == -1) { |
| 74 | fprintf(stderr, |
| 75 | "Cannot encode %s: %s\n", |
| 76 | rval.failed_type->name, strerror(errno)); |
| 77 | assert(rval.encoded != -1); |
| 78 | return; |
| 79 | } |
| 80 | |
| 81 | fprintf(stderr, "SAVED OBJECT IN SIZE %d\n", buf_offset); |
| 82 | } |
| 83 | |
| 84 | static PDU_t * |
vlm | 72455f6 | 2007-06-24 08:38:34 +0000 | [diff] [blame] | 85 | load_object_from(const char *fname, char *fbuf, int size, enum enctype how, int mustfail) { |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 86 | asn_dec_rval_t rval; |
| 87 | PDU_t *st = 0; |
| 88 | int csize = 1; |
| 89 | |
| 90 | if(getenv("INITIAL_CHUNK_SIZE")) |
| 91 | csize = atoi(getenv("INITIAL_CHUNK_SIZE")); |
| 92 | |
| 93 | /* Perform multiple iterations with multiple chunks sizes */ |
| 94 | for(; csize < 20; csize += 1) { |
| 95 | int fbuf_offset = 0; |
| 96 | int fbuf_left = size; |
| 97 | int fbuf_chunk = csize; |
| 98 | |
| 99 | fprintf(stderr, "LOADING OBJECT OF SIZE %d FROM [%s] as %s," |
| 100 | " chunks %d\n", |
| 101 | size, fname, how==AS_PER?"PER":"XER", csize); |
| 102 | |
| 103 | if(st) asn_DEF_PDU.free_struct(&asn_DEF_PDU, st, 0); |
| 104 | st = 0; |
| 105 | |
| 106 | do { |
vlm | 182758f | 2007-06-26 23:56:54 +0000 | [diff] [blame] | 107 | fprintf(stderr, "\nDecoding bytes %d..%d (left %d) [%s]\n", |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 108 | fbuf_offset, |
| 109 | fbuf_chunk < fbuf_left |
| 110 | ? fbuf_chunk : fbuf_left, |
vlm | 72455f6 | 2007-06-24 08:38:34 +0000 | [diff] [blame] | 111 | fbuf_left, |
| 112 | fname); |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 113 | if(st) { |
| 114 | fprintf(stderr, "=== currently ===\n"); |
| 115 | asn_fprint(stderr, &asn_DEF_PDU, st); |
| 116 | fprintf(stderr, "=== end ===\n"); |
| 117 | } |
| 118 | switch(how) { |
| 119 | case AS_XER: |
| 120 | rval = xer_decode(0, &asn_DEF_PDU, (void **)&st, |
| 121 | fbuf + fbuf_offset, |
| 122 | fbuf_chunk < fbuf_left |
| 123 | ? fbuf_chunk : fbuf_left); |
| 124 | break; |
vlm | 7bbba23 | 2007-06-26 06:47:18 +0000 | [diff] [blame] | 125 | case AS_DER: |
| 126 | assert(0); |
| 127 | break; |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 128 | case AS_PER: |
| 129 | rval = uper_decode(0, &asn_DEF_PDU, |
| 130 | (void **)&st, fbuf + fbuf_offset, |
| 131 | fbuf_chunk < fbuf_left |
| 132 | ? fbuf_chunk : fbuf_left, 0, 0); |
| 133 | if(rval.code == RC_WMORE) { |
| 134 | if(fbuf_chunk == fbuf_left) { |
vlm | 356d6d2 | 2007-06-26 06:46:31 +0000 | [diff] [blame] | 135 | fprintf(stderr, "-> PER decode error (%d bits of %d bytes (c=%d,l=%d)) \n", rval.consumed, size, fbuf_chunk, fbuf_left); |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 136 | rval.code = RC_FAIL; |
| 137 | rval.consumed += 7; |
| 138 | rval.consumed /= 8; |
vlm | 72455f6 | 2007-06-24 08:38:34 +0000 | [diff] [blame] | 139 | if(mustfail) { |
| 140 | fprintf(stderr, "-> (this was expected failure)\n"); |
| 141 | return 0; |
| 142 | } |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 143 | } else { |
| 144 | rval.consumed = 0; /* Not restartable */ |
| 145 | ASN_STRUCT_FREE(asn_DEF_PDU, st); |
| 146 | st = 0; |
| 147 | fprintf(stderr, "-> PER wants more\n"); |
| 148 | } |
| 149 | } else { |
vlm | 72455f6 | 2007-06-24 08:38:34 +0000 | [diff] [blame] | 150 | fprintf(stderr, "-> PER ret %d/%d mf=%d\n", |
| 151 | rval.code, rval.consumed, mustfail); |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 152 | /* uper_decode() returns _bits_ */ |
| 153 | rval.consumed += 7; |
| 154 | rval.consumed /= 8; |
vlm | 72455f6 | 2007-06-24 08:38:34 +0000 | [diff] [blame] | 155 | if((mustfail?1:0) == (rval.code == RC_FAIL)) { |
| 156 | if(mustfail) { |
| 157 | fprintf(stderr, "-> (this was expected failure)\n"); |
vlm | 7bbba23 | 2007-06-26 06:47:18 +0000 | [diff] [blame] | 158 | return 0; |
vlm | 72455f6 | 2007-06-24 08:38:34 +0000 | [diff] [blame] | 159 | } |
| 160 | } else { |
| 161 | fprintf(stderr, "-> (unexpected %s)\n", mustfail ? "success" : "failure"); |
vlm | 356d6d2 | 2007-06-26 06:46:31 +0000 | [diff] [blame] | 162 | rval.code = RC_FAIL; |
vlm | 72455f6 | 2007-06-24 08:38:34 +0000 | [diff] [blame] | 163 | } |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 164 | } |
| 165 | break; |
| 166 | } |
| 167 | fbuf_offset += rval.consumed; |
| 168 | fbuf_left -= rval.consumed; |
| 169 | if(rval.code == RC_WMORE) |
| 170 | fbuf_chunk += 1; /* Give little more */ |
| 171 | else |
| 172 | fbuf_chunk = csize; /* Back off */ |
| 173 | } while(fbuf_left && rval.code == RC_WMORE); |
| 174 | |
| 175 | assert(rval.code == RC_OK); |
| 176 | if(how == AS_PER) { |
| 177 | fprintf(stderr, "[left %d, off %d, size %d]\n", |
| 178 | fbuf_left, fbuf_offset, size); |
| 179 | assert(fbuf_offset == size); |
| 180 | } else { |
| 181 | assert(fbuf_offset - size < 2 |
| 182 | || (fbuf_offset + 1 /* "\n" */ == size |
| 183 | && fbuf[size - 1] == '\n') |
| 184 | || (fbuf_offset + 2 /* "\r\n" */ == size |
| 185 | && fbuf[size - 2] == '\r' |
| 186 | && fbuf[size - 1] == '\n') |
| 187 | ); |
| 188 | } |
| 189 | } |
| 190 | |
| 191 | if(st) asn_fprint(stderr, &asn_DEF_PDU, st); |
| 192 | return st; |
| 193 | } |
| 194 | |
| 195 | static int |
| 196 | xer_encoding_equal(char *obuf, size_t osize, char *nbuf, size_t nsize) { |
| 197 | char *oend = obuf + osize; |
| 198 | char *nend = nbuf + nsize; |
| 199 | |
| 200 | if((osize && !nsize) || (!osize && nsize)) |
| 201 | return 0; /* not equal apriori */ |
| 202 | |
| 203 | while(1) { |
| 204 | while(obuf < oend && isspace(*obuf)) obuf++; |
| 205 | while(nbuf < nend && isspace(*nbuf)) nbuf++; |
| 206 | |
| 207 | if(obuf == oend || nbuf == nend) { |
| 208 | if(obuf == oend && nbuf == nend) |
| 209 | break; |
| 210 | fprintf(stderr, "%s data in reconstructed encoding\n", |
| 211 | (obuf == oend) ? "More" : "Less"); |
| 212 | return 0; |
| 213 | } |
| 214 | |
| 215 | if(*obuf != *nbuf) { |
| 216 | printf("%c%c != %c%c\n", |
| 217 | obuf[0], obuf[1], |
| 218 | nbuf[0], nbuf[1]); |
| 219 | return 0; |
| 220 | } |
| 221 | obuf++, nbuf++; |
| 222 | } |
| 223 | |
| 224 | return 1; |
| 225 | } |
| 226 | |
| 227 | static void |
vlm | 252357f | 2007-06-23 23:50:25 +0000 | [diff] [blame] | 228 | compare_with_data_out(const char *fname, char *buf, int size) { |
| 229 | char outName[256]; |
| 230 | char fbuf[1024]; |
| 231 | size_t rd; |
| 232 | FILE *f; |
vlm | 4707db7 | 2007-06-26 09:54:17 +0000 | [diff] [blame] | 233 | char lastChar; |
| 234 | int mustfail, compare; |
vlm | 252357f | 2007-06-23 23:50:25 +0000 | [diff] [blame] | 235 | |
| 236 | sprintf(outName, "../data-126/%s", fname); |
| 237 | strcpy(outName + strlen(outName) - 3, ".out"); |
| 238 | |
| 239 | fprintf(stderr, "Comparing PER output with [%s]\n", outName); |
| 240 | |
vlm | 4707db7 | 2007-06-26 09:54:17 +0000 | [diff] [blame] | 241 | lastChar = outName[strlen(outName)-5]; |
| 242 | mustfail = lastChar == 'P'; |
| 243 | compare = lastChar != 'C'; |
vlm | 7917a3e | 2007-06-24 08:45:31 +0000 | [diff] [blame] | 244 | |
vlm | 2fca3ee | 2007-06-26 10:14:11 +0000 | [diff] [blame] | 245 | if((compare && !mustfail) && getenv("REGENERATE")) { |
vlm | c0eae7c | 2007-06-24 00:35:51 +0000 | [diff] [blame] | 246 | f = fopen(outName, "w"); |
| 247 | fwrite(buf, 1, size, f); |
| 248 | fclose(f); |
| 249 | } else { |
| 250 | f = fopen(outName, "r"); |
vlm | 252357f | 2007-06-23 23:50:25 +0000 | [diff] [blame] | 251 | assert(f); |
| 252 | rd = fread(fbuf, 1, sizeof(fbuf), f); |
| 253 | assert(rd); |
| 254 | fclose(f); |
| 255 | |
vlm | 72455f6 | 2007-06-24 08:38:34 +0000 | [diff] [blame] | 256 | fprintf(stderr, "Trying to decode [%s]\n", outName); |
| 257 | load_object_from(outName, fbuf, rd, AS_PER, mustfail); |
| 258 | if(mustfail) return; |
| 259 | |
vlm | 4707db7 | 2007-06-26 09:54:17 +0000 | [diff] [blame] | 260 | if(compare) { |
| 261 | assert(rd == (size_t)size); |
| 262 | assert(memcmp(fbuf, buf, rd) == 0); |
| 263 | fprintf(stderr, "XER->PER recoding .in->.out match.\n"); |
| 264 | } else { |
| 265 | assert(rd != (size_t)size || memcmp(fbuf, buf, rd)); |
| 266 | fprintf(stderr, "XER->PER recoding .in->.out diverge.\n"); |
| 267 | } |
vlm | 252357f | 2007-06-23 23:50:25 +0000 | [diff] [blame] | 268 | } |
| 269 | } |
| 270 | |
| 271 | static void |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 272 | process_XER_data(const char *fname, char *fbuf, int size) { |
| 273 | PDU_t *st; |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 274 | |
vlm | 72455f6 | 2007-06-24 08:38:34 +0000 | [diff] [blame] | 275 | st = load_object_from(fname, fbuf, size, AS_XER, 0); |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 276 | if(!st) return; |
| 277 | |
vlm | 252357f | 2007-06-23 23:50:25 +0000 | [diff] [blame] | 278 | /* Save and re-load as PER */ |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 279 | save_object_as(st, AS_PER); |
vlm | 252357f | 2007-06-23 23:50:25 +0000 | [diff] [blame] | 280 | compare_with_data_out(fname, buf, buf_offset); |
vlm | 72455f6 | 2007-06-24 08:38:34 +0000 | [diff] [blame] | 281 | st = load_object_from("buffer", buf, buf_offset, AS_PER, 0); |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 282 | assert(st); |
| 283 | |
| 284 | save_object_as(st, AS_XER); |
| 285 | fprintf(stderr, "=== original ===\n"); |
| 286 | fwrite(fbuf, 1, size, stderr); |
| 287 | fprintf(stderr, "=== re-encoded ===\n"); |
| 288 | fwrite(buf, 1, buf_offset, stderr); |
| 289 | fprintf(stderr, "=== end ===\n"); |
| 290 | |
vlm | 0931f57 | 2007-06-27 01:54:57 +0000 | [diff] [blame] | 291 | if(fname[strlen(fname) - 4] == 'X') |
| 292 | assert(!xer_encoding_equal(fbuf, size, buf, buf_offset)); |
| 293 | else |
| 294 | assert(xer_encoding_equal(fbuf, size, buf, buf_offset)); |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 295 | |
| 296 | asn_DEF_PDU.free_struct(&asn_DEF_PDU, st, 0); |
| 297 | } |
| 298 | |
| 299 | /* |
| 300 | * Decode the .der files and try to regenerate them. |
| 301 | */ |
| 302 | static int |
| 303 | process(const char *fname) { |
| 304 | char fbuf[4096]; |
| 305 | char *ext = strrchr(fname, '.'); |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 306 | int rd; |
| 307 | FILE *fp; |
| 308 | |
| 309 | if(ext == 0 || strcmp(ext, ".in")) |
| 310 | return 0; |
| 311 | |
| 312 | fprintf(stderr, "\nProcessing file [../%s]\n", fname); |
| 313 | |
| 314 | snprintf(fbuf, sizeof(fbuf), "../data-126/%s", fname); |
| 315 | fp = fopen(fbuf, "r"); |
| 316 | assert(fp); |
| 317 | |
| 318 | rd = fread(fbuf, 1, sizeof(fbuf), fp); |
| 319 | fclose(fp); |
| 320 | |
vlm | 7bbba23 | 2007-06-26 06:47:18 +0000 | [diff] [blame] | 321 | assert((size_t)rd < sizeof(fbuf)); /* expect small files */ |
vlm | f76be72 | 2007-06-23 20:18:15 +0000 | [diff] [blame] | 322 | |
| 323 | process_XER_data(fname, fbuf, rd); |
| 324 | |
| 325 | fprintf(stderr, "Finished [%s]\n", fname); |
| 326 | |
| 327 | return 1; |
| 328 | } |
| 329 | |
| 330 | int |
| 331 | main() { |
| 332 | DIR *dir; |
| 333 | struct dirent *dent; |
| 334 | int processed_files = 0; |
| 335 | char *str; |
| 336 | |
| 337 | /* Process a specific test file */ |
| 338 | str = getenv("DATA_126_FILE"); |
| 339 | if(str && strncmp(str, "data-126-", 9) == 0) { |
| 340 | process(str); |
| 341 | return 0; |
| 342 | } |
| 343 | |
| 344 | dir = opendir("../data-126"); |
| 345 | assert(dir); |
| 346 | |
| 347 | /* |
| 348 | * Process each file in that directory. |
| 349 | */ |
| 350 | while((dent = readdir(dir))) { |
| 351 | if(strncmp(dent->d_name, "data-126-", 9) == 0) |
| 352 | if(process(dent->d_name)) |
| 353 | processed_files++; |
| 354 | } |
| 355 | |
| 356 | assert(processed_files); |
| 357 | closedir(dir); |
| 358 | |
| 359 | return 0; |
| 360 | } |
| 361 | |