(/home/sate/Testcases/c/cve/wireshark-1.2.0/epan/dissectors/packet-ipsec.c) |
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| 420 | | | get_full_ipv4_addr(char* ipv4_addr_expanded, char *ipv4_addr) |
| 421 | | | { |
| 422 | | | char addr_byte_string_tmp[4]; |
| 423 | | | char addr_byte_string[4]; |
| 424 | | | |
| 425 | | | guint addr_byte = 0; |
| 426 | | | guint i = 0; |
| 427 | | | guint j = 0; |
| 428 | | | guint k = 0; |
| 429 | | | guint cpt = 0; |
| 430 | | | gboolean done_flag = FALSE; |
| 431 | | | |
| 432 | | | if((ipv4_addr == NULL) || (strcmp(ipv4_addr, "") == 0)) return done_flag; |
| 433 | | | |
| 434 | | | if((strlen(ipv4_addr) == 1) && (ipv4_addr[0] == IPSEC_SA_WILDCARDS_ANY)) |
| 435 | | | { |
| 436 | | | for(i = 0; i <= IPSEC_STRLEN_IPV4; i++) |
| 437 | | | { |
| 438 | | | ipv4_addr_expanded[i] = IPSEC_SA_WILDCARDS_ANY; |
| 439 | | | } |
| 440 | | | ipv4_addr_expanded[IPSEC_STRLEN_IPV4] = '\0'; |
| 441 | | | done_flag = TRUE; |
| 442 | | | } |
| 443 | | | |
| 444 | | | else { |
| 445 | | | j = 0; |
| 446 | | | cpt = 0; |
| 447 | | | k = 0; |
| 448 | | | while((done_flag == FALSE) && (j <= strlen(ipv4_addr)) && (cpt < IPSEC_STRLEN_IPV4)) |
Event 5:
Continuing from loop body. Leaving loop. done_flag == 0 evaluates to false.
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| 449 | | | { |
| 450 | | | if(j == strlen(ipv4_addr)) |
| 451 | | | { |
| 452 | | | addr_byte_string_tmp[k] = '\0'; |
| 453 | | | if((strlen(addr_byte_string_tmp) == 1) && (addr_byte_string_tmp[0] == IPSEC_SA_WILDCARDS_ANY)) |
| 454 | | | { |
| 455 | | | for(i = 0; i < 2; i++) |
| 456 | | | { |
| 457 | | | ipv4_addr_expanded[cpt] = IPSEC_SA_WILDCARDS_ANY; |
| 458 | | | cpt ++; |
| 459 | | | } |
| 460 | | | } |
| 461 | | | else |
| 462 | | | { |
| 463 | | | sscanf(addr_byte_string_tmp,"%u",&addr_byte); |
Ignored Return Value
The return value of __isoc99_sscanf() 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.
- CodeSonar is configured to enforce Ignored Return Value checks for __isoc99_sscanf(). (To change the set of enforced Ignored Return Value checks, use configuration file parameters RETURN_CHECKER_CHECKED_FUNCS and RETURN_CHECKER_IGNORED_FUNCS).
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| 464 | | | if(addr_byte < 16) g_snprintf(addr_byte_string,4,"0%X",addr_byte); |
Event 2:
Taking true branch. addr_byte < 16 evaluates to true.
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| 465 | | | else g_snprintf(addr_byte_string,4,"%X",addr_byte); |
| 466 | | | for(i = 0; i < strlen(addr_byte_string); i++) |
| 467 | | | { |
| 468 | | | ipv4_addr_expanded[cpt] = addr_byte_string[i]; |
| 469 | | | cpt ++; |
| 470 | | | } |
| 471 | | | } |
| 472 | | | done_flag = TRUE; |
Event 4:
!0 evaluates to true.
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| 473 | | | } |
| 474 | | | |
| 475 | | | else if(ipv4_addr[j] == '.') |
| 476 | | | { |
| 477 | | | addr_byte_string_tmp[k] = '\0'; |
| 478 | | | if((strlen(addr_byte_string_tmp) == 1) && (addr_byte_string_tmp[0] == IPSEC_SA_WILDCARDS_ANY)) |
| 479 | | | { |
| 480 | | | for(i = 0; i < 2; i++) |
| 481 | | | { |
| 482 | | | ipv4_addr_expanded[cpt] = IPSEC_SA_WILDCARDS_ANY; |
| 483 | | | cpt ++; |
| 484 | | | } |
| 485 | | | } |
| 486 | | | else |
| 487 | | | { |
| 488 | | | sscanf(addr_byte_string_tmp,"%u",&addr_byte); |
| 489 | | | if(addr_byte < 16) g_snprintf(addr_byte_string,4,"0%X",addr_byte); |
| 490 | | | else g_snprintf(addr_byte_string,4,"%X",addr_byte); |
| 491 | | | for(i = 0; i < strlen(addr_byte_string); i++) |
| 492 | | | { |
| 493 | | | ipv4_addr_expanded[cpt] = addr_byte_string[i]; |
| 494 | | | cpt ++; |
| 495 | | | } |
| 496 | | | } |
| 497 | | | k = 0; |
| 498 | | | j++; |
| 499 | | | } |
| 500 | | | else |
| 501 | | | { |
| 502 | | | if(k >= 3) |
| 503 | | | { |
| 504 | | | |
| 505 | | | addr_byte_string_tmp[0] = ipv4_addr[j]; |
| 506 | | | k = 1; |
| 507 | | | j++; |
| 508 | | | } |
| 509 | | | else |
| 510 | | | { |
| 511 | | | addr_byte_string_tmp[k] = ipv4_addr[j]; |
| 512 | | | k++; |
| 513 | | | j++; |
| 514 | | | } |
| 515 | | | } |
| 516 | | | |
| 517 | | | } |
| 518 | | | |
| 519 | | | ipv4_addr_expanded[cpt] = '\0'; |
| 520 | | | } |
| 521 | | | |
| 522 | | | return done_flag; |
| 523 | | | } |
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