| #ifndef WIN32_LEAN_AND_MEAN |
| #define WIN32_LEAN_AND_MEAN |
| #endif |
| #include <windows.h> |
| #undef __CRT__NO_INLINE |
| #define __CRT__NO_INLINE |
| #include <wspiapi.h> |
| |
| int WINAPI |
| WspiapiQueryDNS(const char *pszNodeName, |
| int iSocketType, int iProtocol, |
| WORD wPort, char pszAlias[NI_MAXHOST], |
| struct addrinfo **pptResult) |
| { |
| struct addrinfo **pptNext = pptResult; |
| struct hostent *ptHost = NULL; |
| char **ppAddresses; |
| *pptNext = NULL; |
| pszAlias[0] = '\0'; |
| ptHost = gethostbyname(pszNodeName); |
| if (ptHost) { |
| if ((ptHost->h_addrtype == AF_INET) && |
| (ptHost->h_length == sizeof(struct in_addr))) { |
| for (ppAddresses = ptHost->h_addr_list; *ppAddresses != NULL; |
| ppAddresses++) { |
| *pptNext = WspiapiNewAddrInfo(iSocketType, iProtocol, wPort, |
| ((struct in_addr *) *ppAddresses)->s_addr); |
| if (!*pptNext) |
| return EAI_MEMORY; |
| pptNext = &((*pptNext)->ai_next); |
| } |
| } |
| _WSPIAPI_STRNCPY_S(pszAlias,NI_MAXHOST,ptHost->h_name,NI_MAXHOST - 1); |
| return 0; |
| } |
| switch(WSAGetLastError()) { |
| case WSAHOST_NOT_FOUND: return EAI_NONAME; |
| case WSATRY_AGAIN: return EAI_AGAIN; |
| case WSANO_RECOVERY: return EAI_FAIL; |
| case WSANO_DATA: return EAI_NODATA; |
| default: return EAI_NONAME; |
| } |
| } |
