| #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 |
| WspiapiLegacyGetAddrInfo(const char *pszNodeName, |
| const char *pszServiceName, |
| const struct addrinfo *ptHints, |
| struct addrinfo **pptResult) |
| { |
| int iError = 0; |
| int iFlags = 0; |
| int iFamily = PF_UNSPEC; |
| int iSocketType = 0; |
| int iProtocol = 0; |
| WORD wPort = 0; |
| DWORD dwAddress = 0; |
| struct servent *ptService = NULL; |
| char *pc = NULL; |
| WINBOOL bClone = FALSE; |
| WORD wTcpPort = 0; |
| WORD wUdpPort = 0; |
| *pptResult = NULL; |
| if ((!pszNodeName) && (!pszServiceName)) |
| return EAI_NONAME; |
| if (ptHints) { |
| if ((ptHints->ai_addrlen != 0) || (ptHints->ai_canonname != NULL) || |
| (ptHints->ai_addr != NULL) || (ptHints->ai_next != NULL)) |
| return EAI_FAIL; |
| iFlags = ptHints->ai_flags; |
| if ((iFlags & AI_CANONNAME) && !pszNodeName) |
| return EAI_BADFLAGS; |
| iFamily = ptHints->ai_family; |
| if ((iFamily != PF_UNSPEC) && (iFamily != PF_INET)) |
| return EAI_FAMILY; |
| iSocketType = ptHints->ai_socktype; |
| if ((iSocketType != 0) && (iSocketType != SOCK_STREAM) && |
| (iSocketType != SOCK_DGRAM) && (iSocketType != SOCK_RAW)) |
| return EAI_SOCKTYPE; |
| iProtocol = ptHints->ai_protocol; |
| } |
| if (pszServiceName) { |
| wPort = (WORD) strtoul(pszServiceName, &pc, 10); |
| if (*pc == '\0') { |
| wPort = wTcpPort = wUdpPort = htons(wPort); |
| if (iSocketType == 0) { |
| bClone = TRUE; |
| iSocketType = SOCK_STREAM; |
| } |
| } else { |
| if ((iSocketType == 0) || (iSocketType == SOCK_DGRAM)) { |
| ptService = getservbyname(pszServiceName, "udp"); |
| if (ptService) |
| wPort = wUdpPort = ptService->s_port; |
| } |
| if ((iSocketType == 0) || (iSocketType == SOCK_STREAM)) { |
| ptService = getservbyname(pszServiceName, "tcp"); |
| if (ptService) |
| wPort = wTcpPort = ptService->s_port; |
| } |
| if (wPort == 0) |
| return (iSocketType ? EAI_SERVICE : EAI_NONAME); |
| if (iSocketType == 0) { |
| iSocketType = (wTcpPort) ? SOCK_STREAM : SOCK_DGRAM; |
| bClone = (wTcpPort && wUdpPort); |
| } |
| } |
| } |
| if ((!pszNodeName) || (WspiapiParseV4Address(pszNodeName,&dwAddress))) { |
| if (!pszNodeName) { |
| dwAddress = htonl((iFlags & AI_PASSIVE) ? INADDR_ANY : INADDR_LOOPBACK); |
| } |
| *pptResult = WspiapiNewAddrInfo(iSocketType, iProtocol, wPort, dwAddress); |
| if (!(*pptResult)) |
| iError = EAI_MEMORY; |
| if (!iError && pszNodeName) { |
| (*pptResult)->ai_flags |= AI_NUMERICHOST; |
| if (iFlags & AI_CANONNAME) { |
| (*pptResult)->ai_canonname = |
| WspiapiStrdup(inet_ntoa(*((struct in_addr *) &dwAddress))); |
| if (!(*pptResult)->ai_canonname) |
| iError = EAI_MEMORY; |
| } |
| } |
| } else if (iFlags & AI_NUMERICHOST) { |
| iError = EAI_NONAME; |
| } else { |
| iError = WspiapiLookupNode(pszNodeName, iSocketType, iProtocol, wPort, |
| (iFlags & AI_CANONNAME), pptResult); |
| } |
| if (!iError && bClone) |
| iError = WspiapiClone(wUdpPort, *pptResult); |
| if (iError) { |
| WspiapiLegacyFreeAddrInfo(*pptResult); |
| *pptResult = NULL; |
| } |
| return (iError); |
| } |
