vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 1 | #include <stdio.h> |
| 2 | #include <string.h> |
| 3 | #include <errno.h> |
| 4 | #include <assert.h> |
| 5 | |
| 6 | #include <asn1parser.h> |
| 7 | |
| 8 | #include "asn1print.h" |
| 9 | |
| 10 | #define INDENT(fmt, args...) do { \ |
| 11 | int __i = level; while(__i--) putchar(' '); \ |
| 12 | printf(fmt, ##args); \ |
| 13 | } while(0) |
| 14 | |
| 15 | static int asn1print_module(asn1p_module_t *mod, enum asn1print_flags_e flags); |
| 16 | static int asn1print_oid(asn1p_oid_t *oid, enum asn1print_flags_e flags); |
| 17 | static int asn1print_ref(asn1p_ref_t *ref, enum asn1print_flags_e flags); |
| 18 | static int asn1print_tag(asn1p_expr_t *tc, enum asn1print_flags_e flags); |
| 19 | static int asn1print_params(asn1p_paramlist_t *pl,enum asn1print_flags_e flags); |
| 20 | static int asn1print_with_syntax(asn1p_wsyntx_t *wx, enum asn1print_flags_e flags); |
| 21 | static int asn1print_constraint(asn1p_constraint_t *, enum asn1print_flags_e); |
| 22 | static int asn1print_value(asn1p_value_t *val, enum asn1print_flags_e flags); |
| 23 | static int asn1print_expr(asn1p_expr_t *tc, enum asn1print_flags_e flags, |
| 24 | int level); |
| 25 | |
| 26 | /* |
| 27 | * Print the contents of the parsed ASN tree. |
| 28 | */ |
| 29 | int |
| 30 | asn1print(asn1p_t *asn, enum asn1print_flags_e flags) { |
| 31 | asn1p_module_t *mod; |
| 32 | |
| 33 | if(asn == NULL) { |
| 34 | errno = EINVAL; |
| 35 | return -1; |
| 36 | } |
| 37 | |
| 38 | TQ_FOR(mod, &(asn->modules), mod_next) { |
| 39 | asn1print_module(mod, flags); |
| 40 | } |
| 41 | |
| 42 | return 0; |
| 43 | } |
| 44 | |
| 45 | static int |
| 46 | asn1print_module(asn1p_module_t *mod, enum asn1print_flags_e flags) { |
| 47 | asn1p_expr_t *tc; |
| 48 | |
| 49 | if(!(flags & APF_NO_SOURCE_COMMENTS)) |
| 50 | printf("\n-- Contents of \"%s\"\n", mod->source_file_name); |
| 51 | |
| 52 | printf("\n%s ", mod->Identifier); |
| 53 | if(mod->module_oid) { |
| 54 | asn1print_oid(mod->module_oid, flags); |
| 55 | printf("\n"); |
| 56 | } |
| 57 | |
| 58 | printf("DEFINITIONS"); |
| 59 | |
| 60 | if(mod->module_flags & MSF_EXPLICIT_TAGS) |
| 61 | printf(" EXPLICIT TAGS"); |
| 62 | if(mod->module_flags & MSF_IMPLICIT_TAGS) |
| 63 | printf(" IMPLICIT TAGS"); |
| 64 | if(mod->module_flags & MSF_AUTOMATIC_TAGS) |
| 65 | printf(" AUTOMATIC TAGS"); |
| 66 | if(mod->module_flags & MSF_EXTENSIBILITY_IMPLIED) |
| 67 | printf(" EXTENSIBILITY IMPLIED"); |
| 68 | |
| 69 | printf(" ::=\n"); |
| 70 | printf("BEGIN\n\n"); |
| 71 | |
| 72 | TQ_FOR(tc, &(mod->members), next) { |
| 73 | asn1print_expr(tc, flags, 0); |
| 74 | printf("\n\n"); |
| 75 | } |
| 76 | |
| 77 | printf("END\n"); |
| 78 | |
| 79 | return 0; |
| 80 | } |
| 81 | |
| 82 | static int |
| 83 | asn1print_oid(asn1p_oid_t *oid, enum asn1print_flags_e flags) { |
| 84 | int ac; |
| 85 | int accum = 0; |
| 86 | |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 87 | (void)flags; /* Unused argument */ |
| 88 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 89 | printf("{"); |
| 90 | for(ac = 0; ac < oid->arcs_count; ac++) { |
| 91 | if(accum + strlen(oid->arcs[ac].name?:"") > 50) { |
| 92 | printf("\n\t"); |
| 93 | accum = 0; |
| 94 | } else if(ac) printf(" "); |
| 95 | |
| 96 | if(oid->arcs[ac].name) { |
| 97 | printf("%s(%d)", |
| 98 | oid->arcs[ac].name, |
| 99 | (int)oid->arcs[ac].number); |
| 100 | accum += strlen(oid->arcs[ac].name); |
| 101 | } else { |
| 102 | printf("%d", |
| 103 | (int)oid->arcs[ac].number); |
| 104 | } |
| 105 | accum += 4; |
| 106 | } |
| 107 | printf(" }"); |
| 108 | |
| 109 | return 0; |
| 110 | } |
| 111 | |
| 112 | static int |
| 113 | asn1print_ref(asn1p_ref_t *ref, enum asn1print_flags_e flags) { |
| 114 | int cc; |
| 115 | |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 116 | (void)flags; /* Unused argument */ |
| 117 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 118 | for(cc = 0; cc < ref->comp_count; cc++) { |
| 119 | if(cc) printf("."); |
| 120 | printf("%s", ref->components[cc].name); |
| 121 | } |
| 122 | |
| 123 | return 0; |
| 124 | } |
| 125 | |
| 126 | static int |
| 127 | asn1print_tag(asn1p_expr_t *tc, enum asn1print_flags_e flags) { |
| 128 | struct asn1p_type_tag_s *tag = &tc->tag; |
| 129 | |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 130 | (void)flags; /* Unused argument */ |
| 131 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 132 | if(tag->tag_class == TC_NOCLASS) |
| 133 | return 0; |
| 134 | |
| 135 | printf("["); |
| 136 | switch(tag->tag_class) { |
| 137 | case TC_NOCLASS: |
| 138 | assert(tag->tag_class != TC_NOCLASS); |
| 139 | break; |
| 140 | case TC_UNIVERSAL: printf("UNIVERSAL "); break; |
| 141 | case TC_PRIVATE: printf("PRIVATE "); break; |
| 142 | case TC_APPLICATION: printf("APPLICATION "); break; |
| 143 | case TC_CONTEXT_SPECIFIC: |
| 144 | break; |
| 145 | } |
| 146 | printf("%lld]", (long long)tag->tag_value); |
| 147 | |
| 148 | switch(tag->tag_mode) { |
| 149 | case TM_DEFAULT: break; |
| 150 | case TM_IMPLICIT: printf(" IMPLICIT"); break; |
| 151 | case TM_EXPLICIT: printf(" EXPLICIT"); break; |
| 152 | } |
| 153 | |
| 154 | return 0; |
| 155 | } |
| 156 | |
| 157 | static int |
| 158 | asn1print_value(asn1p_value_t *val, enum asn1print_flags_e flags) { |
| 159 | |
| 160 | if(val == NULL) |
| 161 | return 0; |
| 162 | |
| 163 | switch(val->type) { |
| 164 | case ATV_NOVALUE: |
| 165 | break; |
| 166 | case ATV_REFERENCED: |
| 167 | return asn1print_ref(val->value.reference, flags); |
| 168 | case ATV_INTEGER: |
| 169 | printf("%lld", (long long)val->value.v_integer); |
| 170 | return 0; |
| 171 | case ATV_MIN: printf("MIN"); return 0; |
| 172 | case ATV_MAX: printf("MAX"); return 0; |
| 173 | case ATV_FALSE: printf("FALSE"); return 0; |
| 174 | case ATV_TRUE: printf("TRUE"); return 0; |
| 175 | case ATV_REAL: |
| 176 | printf("%f", val->value.v_double); |
| 177 | return 0; |
| 178 | case ATV_STRING: |
| 179 | { |
| 180 | char *p = val->value.string.buf; |
| 181 | putchar('"'); |
| 182 | if(strchr(p, '"')) { |
| 183 | /* Mask quotes */ |
| 184 | for(; *p; p++) { |
| 185 | if(*p == '"') |
| 186 | putchar(*p); |
| 187 | putchar(*p); |
| 188 | } |
| 189 | } else { |
| 190 | fputs(p, stdout); |
| 191 | } |
| 192 | putchar('"'); |
| 193 | } |
| 194 | return 0; |
| 195 | case ATV_UNPARSED: |
| 196 | fputs(val->value.string.buf, stdout); |
| 197 | return 0; |
| 198 | case ATV_BITVECTOR: |
| 199 | { |
| 200 | uint8_t *bitvector; |
| 201 | int bits; |
| 202 | int i; |
| 203 | |
| 204 | bitvector = val->value.binary_vector.bits; |
| 205 | bits = val->value.binary_vector.size_in_bits; |
| 206 | |
| 207 | printf("'"); |
| 208 | if(bits%8) { |
| 209 | for(i = 0; i < bits; i++) { |
| 210 | uint8_t uc; |
| 211 | uc = bitvector[i>>3]; |
| 212 | putchar(((uc >> (7-(i%8)))&1)?'1':'0'); |
| 213 | } |
| 214 | printf("'B"); |
| 215 | } else { |
| 216 | char hextable[16] = "0123456789ABCDEF"; |
| 217 | for(i = 0; i < (bits>>3); i++) { |
| 218 | putchar(hextable[bitvector[i] >> 4]); |
| 219 | putchar(hextable[bitvector[i] & 0x0f]); |
| 220 | } |
| 221 | printf("'H"); |
| 222 | } |
| 223 | } |
| 224 | } |
| 225 | |
| 226 | assert(val->type || !"Unknown"); |
| 227 | |
| 228 | return 0; |
| 229 | } |
| 230 | |
| 231 | static int |
| 232 | asn1print_constraint(asn1p_constraint_t *ct, enum asn1print_flags_e flags) { |
| 233 | int symno = 0; |
| 234 | |
| 235 | if(ct == 0) return 0; |
| 236 | |
| 237 | if(ct->type == ACT_CA_SET) |
| 238 | printf("("); |
| 239 | |
| 240 | switch(ct->type) { |
| 241 | case ACT_EL_VALUE: |
| 242 | asn1print_value(ct->value, flags); |
| 243 | break; |
| 244 | case ACT_EL_RANGE: |
| 245 | case ACT_EL_LLRANGE: |
| 246 | case ACT_EL_RLRANGE: |
| 247 | case ACT_EL_ULRANGE: |
| 248 | asn1print_value(ct->range_start, flags); |
| 249 | switch(ct->type) { |
| 250 | case ACT_EL_RANGE: printf(".."); break; |
| 251 | case ACT_EL_LLRANGE: printf("<.."); break; |
| 252 | case ACT_EL_RLRANGE: printf("..<"); break; |
| 253 | case ACT_EL_ULRANGE: printf("<..<"); break; |
| 254 | default: printf("?..?"); break; |
| 255 | } |
| 256 | asn1print_value(ct->range_stop, flags); |
| 257 | break; |
| 258 | case ACT_EL_EXT: |
| 259 | printf("..."); |
| 260 | break; |
| 261 | case ACT_CT_SIZE: |
| 262 | case ACT_CT_FROM: |
| 263 | switch(ct->type) { |
| 264 | case ACT_CT_SIZE: printf("SIZE ("); break; |
| 265 | case ACT_CT_FROM: printf("FROM ("); break; |
| 266 | default: printf("??? ("); break; |
| 267 | } |
| 268 | assert(ct->el_count != 0); |
| 269 | assert(ct->el_count == 1); |
| 270 | asn1print_constraint(ct->elements[0], flags); |
| 271 | printf(")"); |
| 272 | break; |
| 273 | case ACT_CT_WCOMP: |
| 274 | case ACT_CT_WCOMPS: |
| 275 | printf("???"); |
| 276 | break; |
| 277 | case ACT_CA_SET: symno++; |
| 278 | case ACT_CA_CRC: symno++; |
| 279 | case ACT_CA_CSV: symno++; |
| 280 | case ACT_CA_UNI: symno++; |
| 281 | case ACT_CA_INT: symno++; |
| 282 | case ACT_CA_EXC: |
| 283 | { |
| 284 | char *symtable[] = { " EXCEPT ", "^", "|", ",", |
| 285 | "", "(" }; |
| 286 | int i; |
| 287 | for(i = 0; i < ct->el_count; i++) { |
| 288 | enum asn1print_flags_e nflags = flags; |
| 289 | if(i) fputs(symtable[symno], stdout); |
| 290 | if(ct->type == ACT_CA_CRC) fputs("{", stdout); |
| 291 | asn1print_constraint(ct->elements[i], nflags); |
| 292 | if(ct->type == ACT_CA_CRC) fputs("}", stdout); |
| 293 | if(i+1 < ct->el_count |
| 294 | && ct->type == ACT_CA_SET) |
| 295 | fputs(")", stdout); |
| 296 | } |
| 297 | } |
| 298 | break; |
| 299 | case ACT_INVALID: |
| 300 | assert(ct->type != ACT_INVALID); |
| 301 | break; |
| 302 | } |
| 303 | |
| 304 | if(ct->type == ACT_CA_SET) |
| 305 | printf(")"); |
| 306 | |
| 307 | return 0; |
| 308 | } |
| 309 | |
| 310 | static int |
| 311 | asn1print_params(asn1p_paramlist_t *pl, enum asn1print_flags_e flags) { |
| 312 | if(pl) { |
| 313 | int i; |
| 314 | printf("{"); |
| 315 | for(i = 0; i < pl->params_count; i++) { |
| 316 | if(i) printf(", "); |
| 317 | if(pl->params[i].governor) { |
| 318 | asn1print_ref(pl->params[i].governor, flags); |
| 319 | printf(":"); |
| 320 | } |
| 321 | printf("%s", pl->params[i].argument); |
| 322 | } |
| 323 | printf("}"); |
| 324 | } |
| 325 | |
| 326 | return 0; |
| 327 | } |
| 328 | |
| 329 | static int |
| 330 | asn1print_with_syntax(asn1p_wsyntx_t *wx, enum asn1print_flags_e flags) { |
| 331 | if(wx) { |
| 332 | asn1p_wsyntx_chunk_t *wc; |
| 333 | printf(" WITH SYNTAX {"); |
| 334 | TQ_FOR(wc, &(wx->chunks), next) { |
| 335 | if(wc->ref) { |
| 336 | asn1print_ref(wc->ref, flags); |
| 337 | } else { |
| 338 | fwrite(wc->buf, 1, wc->len, stdout); |
| 339 | } |
| 340 | } |
| 341 | printf("}\n"); |
| 342 | } |
| 343 | |
| 344 | return 0; |
| 345 | } |
| 346 | |
| 347 | static int |
| 348 | asn1print_expr(asn1p_expr_t *tc, enum asn1print_flags_e flags, int level) { |
| 349 | |
| 350 | if(flags & APF_LINE_COMMENTS) |
| 351 | INDENT("-- #line %d\n", tc->_lineno); |
| 352 | if(tc->Identifier) |
| 353 | INDENT("%s", tc->Identifier); |
| 354 | |
| 355 | if(tc->params) { |
| 356 | asn1print_params(tc->params, flags); |
| 357 | } |
| 358 | |
| 359 | if(tc->meta_type != AMT_VALUE |
| 360 | && tc->expr_type != A1TC_EXTENSIBLE) { |
| 361 | if(level) { |
| 362 | if(tc->Identifier) |
| 363 | printf("\t"); |
| 364 | } else { |
| 365 | printf(" ::="); |
| 366 | } |
| 367 | } |
| 368 | |
| 369 | if(tc->tag.tag_class) { |
| 370 | printf(" "); |
| 371 | asn1print_tag(tc, flags); |
| 372 | } |
| 373 | |
| 374 | switch(tc->expr_type) { |
| 375 | case A1TC_EXTENSIBLE: |
| 376 | if(tc->value) { |
| 377 | printf("!"); |
| 378 | asn1print_value(tc->value, flags); |
| 379 | } |
| 380 | break; |
| 381 | case A1TC_REFERENCE: |
| 382 | case A1TC_UNIVERVAL: |
| 383 | case A1TC_PARAMETRIZED: |
| 384 | break; |
| 385 | case A1TC_CLASSDEF: |
| 386 | printf(" CLASS"); |
| 387 | break; |
| 388 | case A1TC_CLASSFIELD: |
| 389 | /* Nothing to print here */ |
| 390 | break; |
| 391 | default: |
| 392 | { |
| 393 | char *p = ASN_EXPR_TYPE2STR(tc->expr_type); |
| 394 | printf(" %s", p?p:"<unknown type!>"); |
| 395 | } |
| 396 | break; |
| 397 | } |
| 398 | |
| 399 | if(tc->reference) { |
| 400 | printf(" "); |
| 401 | asn1print_ref(tc->reference, flags); |
| 402 | } |
| 403 | |
| 404 | /* |
| 405 | * Display the descendants (children) of the current type. |
| 406 | */ |
| 407 | if(TQ_FIRST(&(tc->members))) { |
| 408 | asn1p_expr_t *se; /* SubExpression */ |
| 409 | |
| 410 | if((tc->expr_type != ASN_CONSTR_SEQUENCE_OF |
| 411 | && tc->expr_type != ASN_CONSTR_SET_OF) |
| 412 | || TQ_FIRST(&(tc->members))->expr_type & ASN_CONSTR_MASK) |
| 413 | printf(" {\n"); |
| 414 | |
| 415 | TQ_FOR(se, &(tc->members), next) { |
| 416 | /* |
| 417 | * Print the expression as it were stand-alone type. |
| 418 | */ |
| 419 | asn1print_expr(se, flags, level + 4); |
| 420 | switch(se->marker) { |
| 421 | case EM_NOMARK: break; |
| 422 | case EM_OPTIONAL: printf(" OPTIONAL"); break; |
| 423 | case EM_DEFAULT: printf(" DEFAULT <?>"); break; |
| 424 | } |
| 425 | if(TQ_NEXT(se, next)) { |
| 426 | printf(","); |
| 427 | INDENT("\n"); |
| 428 | } |
| 429 | } |
| 430 | |
| 431 | if((tc->expr_type != ASN_CONSTR_SEQUENCE_OF |
| 432 | && tc->expr_type != ASN_CONSTR_SET_OF) |
| 433 | || TQ_FIRST(&(tc->members))->expr_type & ASN_CONSTR_MASK) { |
| 434 | printf("\n"); |
| 435 | INDENT("}"); |
| 436 | } |
| 437 | } |
| 438 | |
| 439 | if(tc->with_syntax) |
| 440 | asn1print_with_syntax(tc->with_syntax, flags); |
| 441 | |
| 442 | if(tc->constraints) { |
| 443 | printf(" "); |
| 444 | asn1print_constraint(tc->constraints, flags); |
| 445 | } |
| 446 | if(tc->unique) { |
| 447 | printf(" UNIQUE"); |
| 448 | } |
| 449 | |
| 450 | if(tc->meta_type == AMT_VALUE |
| 451 | && tc->expr_type != A1TC_EXTENSIBLE) { |
| 452 | if(tc->expr_type == A1TC_UNIVERVAL) |
| 453 | printf("("); |
| 454 | else |
| 455 | printf(" ::= "); |
| 456 | asn1print_value(tc->value, flags); |
| 457 | if(tc->expr_type == A1TC_UNIVERVAL) |
| 458 | printf(")"); |
| 459 | } |
| 460 | |
| 461 | return 0; |
| 462 | } |