| 396 | } |
| 397 | |
| 398 | static int gethostnameinfo(const struct sockaddr *sa, |
| 399 | char *node, |
| 400 | size_t nodelen, |
| 401 | int flags) |
| 402 | { |
| 403 | int ret = -1; |
| 404 | char *p = NULL; |
| 405 | |
| 406 | if (!(flags & NI_NUMERICHOST)) { |
| 407 | struct hostent *hp = gethostbyaddr( |
| 408 | (void *)&((struct sockaddr_in *)sa)->sin_addr, |
| 409 | sizeof (struct in_addr), |
| 410 | sa->sa_family); |
| 411 | ret = check_hostent_err(hp); |
| 412 | if (ret == 0) { |
| 413 | /* Name looked up successfully. */ |
| 414 | ret = snprintf(node, nodelen, "%s", hp->h_name); |
| 415 | if (ret < 0 || (size_t)ret >= nodelen) { |
| 416 | return EAI_MEMORY; |
| 417 | } |
| 418 | if (flags & NI_NOFQDN) { |
| 419 | p = strchr(node,'.'); |
| 420 | if (p) { |
| 421 | *p = '\0'; |
| 422 | } |
| 423 | } |
| 424 | return 0; |
| 425 | } |
| 426 | |
| 427 | if (flags & NI_NAMEREQD) { |
| 428 | /* If we require a name and didn't get one, |
| 429 | * automatically fail. */ |
| 430 | return ret; |
| 431 | } |
| 432 | /* Otherwise just fall into the numeric host code... */ |
| 433 | } |
| 434 | p = inet_ntoa(((struct sockaddr_in *)sa)->sin_addr); |
| 435 | ret = snprintf(node, nodelen, "%s", p); |
| 436 | if (ret < 0 || (size_t)ret >= nodelen) { |
| 437 | return EAI_MEMORY; |
| 438 | } |
| 439 | return 0; |
| 440 | } |
| 441 | |
| 442 | static int getservicenameinfo(const struct sockaddr *sa, |
| 443 | char *service, |
no test coverage detected