| #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 | |
| WspiapiLookupNode (const char *pszNodeName, | |
| int iSocketType, int iProtocol, | |
| WORD wPort, WINBOOL bAI_CANONNAME, | |
| struct addrinfo **pptResult) | |
| { | |
| int err = 0, cntAlias = 0; | |
| char name[NI_MAXHOST] = ""; | |
| char alias[NI_MAXHOST] = ""; | |
| char *pname = name, *palias = alias, *tmp = NULL; | |
| strncpy (pname, pszNodeName, NI_MAXHOST - 1); | |
| pname[NI_MAXHOST - 1] = 0; | |
| for (;;) | |
| { | |
| err = WspiapiQueryDNS (pszNodeName, iSocketType, iProtocol, wPort, palias, pptResult); | |
| if (err) | |
| break; | |
| if (*pptResult) | |
| break; | |
| ++cntAlias; | |
| if (strlen (palias) == 0 || !strcmp (pname, palias) || cntAlias == 16) | |
| { | |
| err = EAI_FAIL; | |
| break; | |
| } | |
| WspiapiSwap(pname, palias, tmp); | |
| } | |
| if (!err && bAI_CANONNAME) | |
| { | |
| (*pptResult)->ai_canonname = WspiapiStrdup (palias); | |
| if (!(*pptResult)->ai_canonname) | |
| err = EAI_MEMORY; | |
| } | |
| return err; | |
| } |