| #ifndef WIN32_LEAN_AND_MEAN |
| #define WIN32_LEAN_AND_MEAN |
| #endif |
| #undef __CRT__NO_INLINE |
| #define __CRT__NO_INLINE |
| #include <winsock2.h> |
| #include <wspiapi.h> |
| |
| int WINAPI |
| WspiapiQueryDNS(const char *pszNodeName, |
| int iSocketType, int iProtocol, |
| WORD wPort, char pszAlias[NI_MAXHOST], |
| struct addrinfo **pptResult) |
| { |
| struct addrinfo **paddrinfo = pptResult; |
| struct hostent *phost = NULL; |
| char **h; |
| |
| *paddrinfo = NULL; |
| pszAlias[0] = 0; |
| phost = gethostbyname (pszNodeName); |
| if (phost) |
| { |
| if (phost->h_addrtype == AF_INET && phost->h_length == sizeof(struct in_addr)) |
| { |
| for (h = phost->h_addr_list; *h != NULL; h++) |
| { |
| *paddrinfo = WspiapiNewAddrInfo (iSocketType, iProtocol, wPort, |
| ((struct in_addr *) *h)->s_addr); |
| if (!*paddrinfo) |
| return EAI_MEMORY; |
| paddrinfo = &((*paddrinfo)->ai_next); |
| } |
| } |
| strncpy (pszAlias, phost->h_name, NI_MAXHOST - 1); |
| pszAlias[NI_MAXHOST - 1] = 0; |
| return 0; |
| } |
| switch(WSAGetLastError()) |
| { |
| case WSAHOST_NOT_FOUND: break; |
| case WSATRY_AGAIN: return EAI_AGAIN; |
| case WSANO_RECOVERY: return EAI_FAIL; |
| case WSANO_DATA: return EAI_NODATA; |
| default: break; |
| } |
| return EAI_NONAME; |
| } |
