(/home/sate/Testcases/c/cve/wireshark-1.2.0/epan/dissectors/packet-mbtcp.c) |
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| 203 | | | dissect_mbtcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) |
| 204 | | | { |
| 205 | | | |
| 206 | | | mbtcp_hdr mh; |
| 207 | | | proto_item *mi, *mf; |
| 208 | | | proto_tree *mbtcp_tree, *modbus_tree, *group_tree; |
| 209 | | | int offset, group_offset, packet_type; |
| 210 | | | guint i; |
| 211 | | | gint packet_len, payload_start, payload_len; |
| 212 | | | const char *func_string = ""; |
| 213 | | | const char *pkt_type_str = ""; |
| 214 | | | const char *err_str = ""; |
| 215 | | | guint32 byte_cnt, group_byte_cnt, group_word_cnt; |
| 216 | | | guint32 packet_num; |
| 217 | | | |
| 218 | | | guint8 exception_code; |
| 219 | | | gboolean exception_returned; |
| 220 | | | guint8 fc; |
| 221 | | | |
| 222 | | | mh.transaction_id = tvb_get_ntohs(tvb, 0); |
| 223 | | | mh.protocol_id = tvb_get_ntohs(tvb, 2); |
| 224 | | | mh.len = tvb_get_ntohs(tvb, 4); |
| 225 | | | mh.mdbs_hdr.unit_id = tvb_get_guint8(tvb, 6); |
| 226 | | | mh.mdbs_hdr.function_code = tvb_get_guint8(tvb, 7); |
| 227 | | | |
| 228 | | | |
| 229 | | | |
| 230 | | | |
| 231 | | | if( mh.protocol_id != 0 ){ |
| 232 | | | return 0; |
| 233 | | | } |
| 234 | | | |
| 235 | | | if( mh.len < 2 ){ |
| 236 | | | return 0; |
| 237 | | | } |
| 238 | | | |
| 239 | | | |
| 240 | | | |
| 241 | | | fc=mh.mdbs_hdr.function_code&0x7f; |
| 242 | | | if(!match_strval(fc, function_code_vals)) |
| 243 | | | return 0; |
| 244 | | | |
| 245 | | | |
| 246 | | | |
| 247 | | | if (check_col(pinfo->cinfo, COL_PROTOCOL)) |
| 248 | | | col_set_str(pinfo->cinfo, COL_PROTOCOL, "Modbus/TCP"); |
| 249 | | | |
| 250 | | | if (check_col(pinfo->cinfo, COL_INFO)) |
| 251 | | | col_clear(pinfo->cinfo, COL_INFO); |
| 252 | | | |
| 253 | | | |
| 254 | | | |
| 255 | | | offset = 0; |
| 256 | | | |
| 257 | | | if ( mh.mdbs_hdr.function_code & 0x80 ) { |
| 258 | | | exception_code = tvb_get_guint8(tvb, offset + sizeof(mbtcp_hdr)); |
| 259 | | | mh.mdbs_hdr.function_code ^= 0x80; |
| 260 | | | exception_returned = TRUE; |
| 261 | | | } |
| 262 | | | else { |
| 263 | | | exception_code = 0; |
| 264 | | | exception_returned = FALSE; |
| 265 | | | } |
| 266 | | | func_string = val_to_str(mh.mdbs_hdr.function_code, function_code_vals, |
| 267 | | | "Unknown function (%u)"); |
Ignored Return Value
The return value of val_to_str() is never checked in the highlighted execution scenario. - If the return value can indicate an error, the error will be ignored if the highlighted code executes.
- The return value of val_to_str() is checked 98% of the time in this project. CodeSonar is configured to enforce Ignored Return Value checks for any function whose return value is checked at least 96% of the time, unless the function is used fewer than 20 times. (To modify these thresholds, use configuration file parameters RETURN_CHECKER_SAMPLE_SIZE and RETURN_CHECKER_RATIO. To exempt val_to_str() from the Ignored Return Value check, use configuration file parameter RETURN_CHECKER_IGNORED_FUNCS).
Show: All events | Only primary events |
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| 268 | | | if (check_col(pinfo->cinfo, COL_INFO)) |
Event 2:
Skipping " if". check_col(...) evaluates to false.
hide
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| 269 | | | { |
| 270 | | | packet_type = classify_packet(pinfo); |
| 271 | | | switch ( packet_type ) { |
| 272 | | | case QUERY_PACKET : pkt_type_str="query"; |
| 273 | | | break; |
| 274 | | | case RESPONSE_PACKET : pkt_type_str="response"; |
| 275 | | | break; |
| 276 | | | case CANNOT_CLASSIFY : err_str="Unable to classify as query or response."; |
| 277 | | | pkt_type_str="unknown"; |
| 278 | | | break; |
| 279 | | | default : |
| 280 | | | break; |
| 281 | | | } |
| 282 | | | if ( exception_returned ) |
| 283 | | | err_str="Exception returned "; |
| 284 | | | col_add_fstr(pinfo->cinfo, COL_INFO, |
| 285 | | | "%8s [%2u pkt(s)]: trans: %5u; unit: %3u, func: %3u: %s. %s", |
| 286 | | | pkt_type_str, 1, mh.transaction_id, (unsigned char) mh.mdbs_hdr.unit_id, |
| 287 | | | (unsigned char) mh.mdbs_hdr.function_code, func_string, err_str); |
| 288 | | | } |
| 289 | | | |
| 290 | | | |
| 291 | | | packet_num = 0; |
| 292 | | | while (1) { |
| 293 | | | packet_type = classify_packet(pinfo); |
| 294 | | | packet_len = sizeof(mbtcp_hdr) - sizeof(modbus_hdr) + mh.len; |
| 295 | | | |
| 296 | | | |
| 297 | | | if (tree) { |
| 298 | | | mi = proto_tree_add_protocol_format(tree, proto_mbtcp, tvb, offset, |
| 299 | | | packet_len, "Modbus/TCP"); |
| 300 | | | mbtcp_tree = proto_item_add_subtree(mi, ett_mbtcp); |
| 301 | | | |
| 302 | | | |
| 303 | | | proto_tree_add_uint(mbtcp_tree, hf_mbtcp_transid, tvb, offset, 2, |
| 304 | | | mh.transaction_id); |
| 305 | | | proto_tree_add_uint(mbtcp_tree, hf_mbtcp_protid, tvb, offset + 2, 2, |
| 306 | | | mh.protocol_id); |
| 307 | | | proto_tree_add_uint(mbtcp_tree, hf_mbtcp_len, tvb, offset + 4, 2, |
| 308 | | | mh.len); |
| 309 | | | |
| 310 | | | proto_tree_add_uint(mbtcp_tree, hf_mbtcp_unitid, tvb, offset + 6, 1, |
| 311 | | | mh.mdbs_hdr.unit_id); |
| 312 | | | |
| 313 | | | |
| 314 | | | |
| 315 | | | mf = proto_tree_add_text(mbtcp_tree, tvb, offset + 7, mh.len - 1, |
| 316 | | | "Modbus"); |
| 317 | | | modbus_tree = proto_item_add_subtree(mf, ett_modbus_hdr); |
| 318 | | | mi = proto_tree_add_uint(modbus_tree, hf_mbtcp_functioncode, tvb, offset + 7, 1, |
| 319 | | | mh.mdbs_hdr.function_code); |
| 320 | | | |
| 321 | | | |
| 322 | | | func_string = val_to_str(mh.mdbs_hdr.function_code, |
| 323 | | | function_code_vals, "Unknown function"); |
| 324 | | | payload_start = offset + 8; |
| 325 | | | payload_len = mh.len - sizeof(modbus_hdr); |
| 326 | | | if (exception_returned) { |
| 327 | | | proto_item_set_text(mi, "function %u: %s. Exception: %s", |
| 328 | | | mh.mdbs_hdr.function_code, |
| 329 | | | func_string, |
| 330 | | | val_to_str(exception_code, |
| 331 | | | exception_code_vals, |
| 332 | | | "Unknown exception code (%u)")); |
| 333 | | | proto_tree_add_uint(modbus_tree, hf_modbus_exceptioncode, tvb, payload_start, 1, |
| 334 | | | exception_code); |
| 335 | | | } |
| 336 | | | else { |
| 337 | | | proto_item_set_text(mi, "function %u: %s", mh.mdbs_hdr.function_code, |
| 338 | | | func_string); |
| 339 | | | switch (mh.mdbs_hdr.function_code) { |
| 340 | | | |
| 341 | | | case READ_COILS: |
| 342 | | | case READ_INPUT_DISCRETES: |
| 343 | | | if (packet_type == QUERY_PACKET) { |
| 344 | | | proto_tree_add_item(modbus_tree, hf_modbus_reference, tvb, payload_start, 2, FALSE); |
| 345 | | | proto_tree_add_item(modbus_tree, hf_modbus_bitcnt, tvb, payload_start + 2, 2, FALSE); |
| 346 | | | } |
| 347 | | | else if (packet_type == RESPONSE_PACKET) { |
| 348 | | | byte_cnt = (guint32)tvb_get_guint8(tvb, payload_start); |
| 349 | | | proto_tree_add_uint(modbus_tree, hf_modbus_bytecnt, tvb, payload_start, 1, byte_cnt); |
| 350 | | | proto_tree_add_text(modbus_tree, tvb, payload_start + 1, byte_cnt, "Data"); |
| 351 | | | } |
| 352 | | | break; |
| 353 | | | |
| 354 | | | case READ_MULT_REGS: |
| 355 | | | case READ_INPUT_REGS: |
| 356 | | | if (packet_type == QUERY_PACKET) { |
| 357 | | | proto_tree_add_item(modbus_tree, hf_modbus_reference, tvb, payload_start, 2, FALSE); |
| 358 | | | proto_tree_add_item(modbus_tree, hf_modbus_wordcnt, tvb, payload_start + 2, 2, FALSE); |
| 359 | | | } |
| 360 | | | else if (packet_type == RESPONSE_PACKET) { |
| 361 | | | byte_cnt = (guint32)tvb_get_guint8(tvb, payload_start); |
| 362 | | | proto_tree_add_uint(modbus_tree, hf_modbus_bytecnt, tvb, payload_start, 1, byte_cnt); |
| 363 | | | proto_tree_add_text(modbus_tree, tvb, payload_start + 1, byte_cnt, "Data"); |
| 364 | | | } |
| 365 | | | break; |
| 366 | | | |
| 367 | | | case WRITE_COIL: |
| 368 | | | if (packet_type == QUERY_PACKET) { |
| 369 | | | proto_tree_add_item(modbus_tree, hf_modbus_reference, tvb, payload_start, 2, FALSE); |
| 370 | | | proto_tree_add_text(modbus_tree, tvb, payload_start + 2, 1, "Data"); |
| 371 | | | proto_tree_add_text(modbus_tree, tvb, payload_start + 3, 1, "Padding"); |
| 372 | | | } |
| 373 | | | else if (packet_type == RESPONSE_PACKET) { |
| 374 | | | proto_tree_add_item(modbus_tree, hf_modbus_reference, tvb, payload_start, 2, FALSE); |
| 375 | | | proto_tree_add_text(modbus_tree, tvb, payload_start + 2, 1, "Data"); |
| 376 | | | proto_tree_add_text(modbus_tree, tvb, payload_start + 3, 1, "Padding"); |
| 377 | | | } |
| 378 | | | break; |
| 379 | | | |
| 380 | | | case WRITE_SINGLE_REG: |
| 381 | | | if (packet_type == QUERY_PACKET) { |
| 382 | | | proto_tree_add_item(modbus_tree, hf_modbus_reference, tvb, payload_start, 2, FALSE); |
| 383 | | | proto_tree_add_text(modbus_tree, tvb, payload_start + 2, 2, "Data"); |
| 384 | | | } |
| 385 | | | else if (packet_type == RESPONSE_PACKET) { |
| 386 | | | proto_tree_add_item(modbus_tree, hf_modbus_reference, tvb, payload_start, 2, FALSE); |
| 387 | | | proto_tree_add_text(modbus_tree, tvb, payload_start + 2, 2, "Data"); |
| 388 | | | } |
| 389 | | | break; |
| 390 | | | |
| 391 | | | case READ_EXCEPT_STAT: |
| 392 | | | if (packet_type == RESPONSE_PACKET) |
| 393 | | | proto_tree_add_text(modbus_tree, tvb, payload_start, 1, "Data"); |
| 394 | | | break; |
| 395 | | | |
| 396 | | | case FORCE_MULT_COILS: |
| 397 | | | if (packet_type == QUERY_PACKET) { |
| 398 | | | proto_tree_add_item(modbus_tree, hf_modbus_reference, tvb, payload_start, 2, FALSE); |
| 399 | | | proto_tree_add_item(modbus_tree, hf_modbus_bitcnt, tvb, payload_start + 2, 2, FALSE); |
| 400 | | | byte_cnt = (guint32)tvb_get_guint8(tvb, payload_start + 4); |
| 401 | | | proto_tree_add_uint(modbus_tree, hf_modbus_bytecnt, tvb, payload_start + 4, 1, |
| 402 | | | byte_cnt); |
| 403 | | | proto_tree_add_text(modbus_tree, tvb, payload_start + 5, byte_cnt, "Data"); |
| 404 | | | } |
| 405 | | | else if (packet_type == RESPONSE_PACKET) { |
| 406 | | | proto_tree_add_item(modbus_tree, hf_modbus_reference, tvb, payload_start, 2, FALSE); |
| 407 | | | proto_tree_add_item(modbus_tree, hf_modbus_bitcnt, tvb, payload_start + 2, 2, FALSE); |
| 408 | | | } |
| 409 | | | break; |
| 410 | | | |
| 411 | | | case WRITE_MULT_REGS: |
| 412 | | | if (packet_type == QUERY_PACKET) { |
| 413 | | | proto_tree_add_item(modbus_tree, hf_modbus_reference, tvb, payload_start, 2, FALSE); |
| 414 | | | proto_tree_add_item(modbus_tree, hf_modbus_wordcnt, tvb, payload_start + 2, 2, FALSE); |
| 415 | | | byte_cnt = (guint32)tvb_get_guint8(tvb, payload_start + 4); |
| 416 | | | proto_tree_add_uint(modbus_tree, hf_modbus_bytecnt, tvb, payload_start + 4, 1, |
| 417 | | | byte_cnt); |
| 418 | | | proto_tree_add_text(modbus_tree, tvb, payload_start + 5, byte_cnt, "Data"); |
| 419 | | | } |
| 420 | | | else if (packet_type == RESPONSE_PACKET) { |
| 421 | | | proto_tree_add_item(modbus_tree, hf_modbus_reference, tvb, payload_start, 2, FALSE); |
| 422 | | | proto_tree_add_item(modbus_tree, hf_modbus_wordcnt, tvb, payload_start + 2, 2, FALSE); |
| 423 | | | } |
| 424 | | | break; |
| 425 | | | |
| 426 | | | case READ_GENL_REF: |
| 427 | | | if (packet_type == QUERY_PACKET) { |
| 428 | | | byte_cnt = (guint32)tvb_get_guint8(tvb, payload_start); |
| 429 | | | proto_tree_add_uint(modbus_tree, hf_modbus_bytecnt, tvb, payload_start, 1, |
| 430 | | | byte_cnt); |
| 431 | | | |
| 432 | | | |
| 433 | | | group_offset = payload_start + 1; |
| 434 | | | for (i = 0; i < byte_cnt / 7; i++) { |
| 435 | | | mi = proto_tree_add_text( modbus_tree, tvb, group_offset, 7, |
| 436 | | | "Group %u", i); |
| 437 | | | group_tree = proto_item_add_subtree(mi, ett_group_hdr); |
| 438 | | | proto_tree_add_item(group_tree, hf_modbus_reftype, tvb, group_offset, 1, FALSE); |
| 439 | | | proto_tree_add_item(group_tree, hf_modbus_lreference, tvb, group_offset + 1, 4, FALSE); |
| 440 | | | proto_tree_add_item(group_tree, hf_modbus_wordcnt, tvb, group_offset + 5, 2, FALSE); |
| 441 | | | group_offset += 7; |
| 442 | | | } |
| 443 | | | } |
| 444 | | | else if (packet_type == RESPONSE_PACKET) { |
| 445 | | | byte_cnt = (guint32)tvb_get_guint8(tvb, payload_start); |
| 446 | | | proto_tree_add_uint(modbus_tree, hf_modbus_bytecnt, tvb, payload_start, 1, |
| 447 | | | byte_cnt); |
| 448 | | | |
| 449 | | | |
| 450 | | | group_offset = payload_start + 1; |
| 451 | | | i = 0; |
| 452 | | | while (byte_cnt > 0) { |
| 453 | | | group_byte_cnt = (guint32)tvb_get_guint8(tvb, group_offset); |
| 454 | | | mi = proto_tree_add_text( modbus_tree, tvb, group_offset, group_byte_cnt + 1, |
| 455 | | | "Group %u", i); |
| 456 | | | group_tree = proto_item_add_subtree(mi, ett_group_hdr); |
| 457 | | | proto_tree_add_uint(group_tree, hf_modbus_bytecnt, tvb, group_offset, 1, |
| 458 | | | group_byte_cnt); |
| 459 | | | proto_tree_add_item(group_tree, hf_modbus_reftype, tvb, group_offset + 1, 1, FALSE); |
| 460 | | | proto_tree_add_text(group_tree, tvb, group_offset + 2, group_byte_cnt - 1, "Data"); |
| 461 | | | group_offset += (group_byte_cnt + 1); |
| 462 | | | byte_cnt -= (group_byte_cnt + 1); |
| 463 | | | i++; |
| 464 | | | } |
| 465 | | | } |
| 466 | | | break; |
| 467 | | | |
| 468 | | | case WRITE_GENL_REF: |
| 469 | | | if ((packet_type == QUERY_PACKET) || (packet_type == RESPONSE_PACKET)) { |
| 470 | | | byte_cnt = (guint32)tvb_get_guint8(tvb, payload_start); |
| 471 | | | proto_tree_add_uint(modbus_tree, hf_modbus_bytecnt, tvb, payload_start, 1, |
| 472 | | | byte_cnt); |
| 473 | | | |
| 474 | | | |
| 475 | | | group_offset = payload_start + 1; |
| 476 | | | i = 0; |
| 477 | | | while (byte_cnt > 0) { |
| 478 | | | group_word_cnt = tvb_get_ntohs(tvb, group_offset + 5); |
| 479 | | | group_byte_cnt = (2 * group_word_cnt) + 7; |
| 480 | | | mi = proto_tree_add_text( modbus_tree, tvb, group_offset, |
| 481 | | | group_byte_cnt, "Group %u", i); |
| 482 | | | group_tree = proto_item_add_subtree(mi, ett_group_hdr); |
| 483 | | | proto_tree_add_item(group_tree, hf_modbus_reftype, tvb, group_offset, 1, FALSE); |
| 484 | | | proto_tree_add_item(group_tree, hf_modbus_lreference, tvb, group_offset + 1, 4, FALSE); |
| 485 | | | proto_tree_add_uint(group_tree, hf_modbus_wordcnt, tvb, group_offset + 5, 2, |
| 486 | | | group_word_cnt); |
| 487 | | | proto_tree_add_text(group_tree, tvb, group_offset + 7, group_byte_cnt - 7, "Data"); |
| 488 | | | group_offset += group_byte_cnt; |
| 489 | | | byte_cnt -= group_byte_cnt; |
| 490 | | | i++; |
| 491 | | | } |
| 492 | | | } |
| 493 | | | break; |
| 494 | | | |
| 495 | | | case MASK_WRITE_REG: |
| 496 | | | if ((packet_type == QUERY_PACKET) || (packet_type == RESPONSE_PACKET)) { |
| 497 | | | proto_tree_add_item(modbus_tree, hf_modbus_reference, tvb, payload_start, 2, FALSE); |
| 498 | | | proto_tree_add_item(modbus_tree, hf_modbus_andmask, tvb, payload_start + 2, 2, FALSE); |
| 499 | | | proto_tree_add_item(modbus_tree, hf_modbus_ormask, tvb, payload_start + 4, 2, FALSE); |
| 500 | | | } |
| 501 | | | break; |
| 502 | | | |
| 503 | | | case READ_WRITE_REG: |
| 504 | | | if (packet_type == QUERY_PACKET) { |
| 505 | | | proto_tree_add_item(modbus_tree, hf_modbus_readref, tvb, payload_start, 2, FALSE); |
| 506 | | | proto_tree_add_item(modbus_tree, hf_modbus_readwordcnt, tvb, payload_start + 2, 2, FALSE); |
| 507 | | | proto_tree_add_item(modbus_tree, hf_modbus_writeref, tvb, payload_start + 4, 2, FALSE); |
| 508 | | | proto_tree_add_item(modbus_tree, hf_modbus_writewordcnt, tvb, payload_start + 6, 2, FALSE); |
| 509 | | | byte_cnt = (guint32)tvb_get_guint8(tvb, payload_start + 8); |
| 510 | | | proto_tree_add_uint(modbus_tree, hf_modbus_bytecnt, tvb, payload_start + 8, 1, |
| 511 | | | byte_cnt); |
| 512 | | | proto_tree_add_text(modbus_tree, tvb, payload_start + 9, byte_cnt, "Data"); |
| 513 | | | } |
| 514 | | | else if (packet_type == RESPONSE_PACKET) { |
| 515 | | | byte_cnt = (guint32)tvb_get_guint8(tvb, payload_start); |
| 516 | | | proto_tree_add_uint(modbus_tree, hf_modbus_bytecnt, tvb, payload_start, 1, |
| 517 | | | byte_cnt); |
| 518 | | | proto_tree_add_text(modbus_tree, tvb, payload_start + 1, byte_cnt, "Data"); |
| 519 | | | } |
| 520 | | | break; |
| 521 | | | |
| 522 | | | case READ_FIFO_QUEUE: |
| 523 | | | if (packet_type == QUERY_PACKET) |
| 524 | | | proto_tree_add_item(modbus_tree, hf_modbus_reference, tvb, payload_start, 2, FALSE); |
| 525 | | | else if (packet_type == RESPONSE_PACKET) { |
| 526 | | | byte_cnt = (guint32)tvb_get_ntohs(tvb, payload_start); |
| 527 | | | proto_tree_add_uint(modbus_tree, hf_modbus_lbytecnt, tvb, payload_start, 2, |
| 528 | | | byte_cnt); |
| 529 | | | proto_tree_add_item(modbus_tree, hf_modbus_wordcnt, tvb, payload_start + 2, 2, FALSE); |
| 530 | | | proto_tree_add_text(modbus_tree, tvb, payload_start + 4, byte_cnt - 2, "Data"); |
| 531 | | | } |
| 532 | | | break; |
| 533 | | | |
| 534 | | | case DIAGNOSTICS: |
| 535 | | | case PROGRAM_484: |
| 536 | | | case POLL_484: |
| 537 | | | case GET_COMM_EVENT_CTRS: |
| 538 | | | case GET_COMM_EVENT_LOG: |
| 539 | | | case PROGRAM_584_984: |
| 540 | | | case POLL_584_984: |
| 541 | | | case REPORT_SLAVE_ID: |
| 542 | | | case PROGRAM_884_U84: |
| 543 | | | case RESET_COMM_LINK: |
| 544 | | | case PROGRAM_CONCEPT: |
| 545 | | | case FIRMWARE_REPLACE: |
| 546 | | | case PROGRAM_584_984_2: |
| 547 | | | case REPORT_LOCAL_ADDR_MB: |
| 548 | | | |
| 549 | | | default: |
| 550 | | | if (payload_len > 0) |
| 551 | | | proto_tree_add_text(modbus_tree, tvb, payload_start, payload_len, "Data"); |
| 552 | | | break; |
| 553 | | | } |
| 554 | | | } |
| 555 | | | } |
| 556 | | | |
| 557 | | | |
| 558 | | | offset += packet_len; |
| 559 | | | packet_num++; |
| 560 | | | if (tvb_reported_length_remaining(tvb, offset) > 0) { |
| 561 | | | |
| 562 | | | |
| 563 | | | mh.transaction_id = tvb_get_ntohs(tvb, offset+0); |
| 564 | | | mh.protocol_id = tvb_get_ntohs(tvb, offset+2); |
| 565 | | | mh.len = tvb_get_ntohs(tvb, offset+4); |
| 566 | | | mh.mdbs_hdr.unit_id = tvb_get_guint8(tvb, offset+6); |
| 567 | | | mh.mdbs_hdr.function_code = tvb_get_guint8(tvb, offset+7); |
| 568 | | | |
| 569 | | | |
| 570 | | | if ( mh.mdbs_hdr.function_code & 0x80 ) { |
| 571 | | | exception_code = tvb_get_guint8(tvb, offset + sizeof(mbtcp_hdr)); |
| 572 | | | mh.mdbs_hdr.function_code ^= 0x80; |
| 573 | | | exception_returned = TRUE; |
| 574 | | | } else |
| 575 | | | exception_returned = FALSE; |
| 576 | | | } |
| 577 | | | else |
| 578 | | | break; |
| 579 | | | } |
| 580 | | | |
| 581 | | | return tvb_length(tvb); |
| 582 | | | } |
| |