wspiapi.h (6716B) - Raw
1 /** 2 * This file has no copyright assigned and is placed in the Public Domain. 3 * This file is part of the mingw-w64 runtime package. 4 * No warranty is given; refer to the file DISCLAIMER.PD within this package. 5 */ 6 #ifndef _WSPIAPI_H_ 7 #define _WSPIAPI_H_ 8 9 #include <stdio.h> 10 #include <stdlib.h> 11 #include <malloc.h> 12 #include <string.h> 13 #include <ws2tcpip.h> 14 15 #define _WSPIAPI_STRCPY_S(_Dst,_Size,_Src) strcpy((_Dst),(_Src)) 16 #define _WSPIAPI_STRCAT_S(_Dst,_Size,_Src) strcat((_Dst),(_Src)) 17 #define _WSPIAPI_STRNCPY_S(_Dst,_Size,_Src,_Count) strncpy((_Dst),(_Src),(_Count)); (_Dst)[(_Size) - 1] = 0 18 #define _WSPIAPI_SPRINTF_S_1(_Dst,_Size,_Format,_Arg1) sprintf((_Dst),(_Format),(_Arg1)) 19 20 #ifndef _WSPIAPI_COUNTOF 21 #ifndef __cplusplus 22 #define _WSPIAPI_COUNTOF(_Array) (sizeof(_Array) / sizeof(_Array[0])) 23 #else 24 template <typename __CountofType,size_t __wspiapi_countof_helper_N> char (&__wspiapi_countof_helper(__CountofType (&_Array)[__wspiapi_countof_helper_N]))[__wspiapi_countof_helper_N]; 25 #define _WSPIAPI_COUNTOF(_Array) sizeof(__wspiapi_countof_helper(_Array)) 26 #endif 27 #endif 28 29 #define WspiapiMalloc(tSize) calloc(1,(tSize)) 30 #define WspiapiFree(p) free(p) 31 #define WspiapiSwap(a,b,c) { (c) = (a); (a) = (b); (b) = (c); } 32 #define getaddrinfo WspiapiGetAddrInfo 33 #define getnameinfo WspiapiGetNameInfo 34 #define freeaddrinfo WspiapiFreeAddrInfo 35 36 typedef int (WINAPI *WSPIAPI_PGETADDRINFO)(const char *nodename,const char *servname,const struct addrinfo *hints,struct addrinfo **res); 37 typedef int (WINAPI *WSPIAPI_PGETNAMEINFO)(const struct sockaddr *sa,socklen_t salen,char *host,size_t hostlen,char *serv,size_t servlen,int flags); 38 typedef void (WINAPI *WSPIAPI_PFREEADDRINFO)(struct addrinfo *ai); 39 40 #ifdef __cplusplus 41 extern "C" { 42 #endif 43 typedef struct { 44 char const *pszName; 45 FARPROC pfAddress; 46 } WSPIAPI_FUNCTION; 47 48 #define WSPIAPI_FUNCTION_ARRAY { { "getaddrinfo",(FARPROC)(void(*)(void)) WspiapiLegacyGetAddrInfo }, \ 49 { "getnameinfo",(FARPROC)(void(*)(void)) WspiapiLegacyGetNameInfo }, \ 50 { "freeaddrinfo",(FARPROC)(void(*)(void)) WspiapiLegacyFreeAddrInfo } } 51 52 char *WINAPI WspiapiStrdup (const char *pszString); 53 WINBOOL WINAPI WspiapiParseV4Address (const char *pszAddress,PDWORD pdwAddress); 54 struct addrinfo * WINAPI WspiapiNewAddrInfo (int iSocketType,int iProtocol,WORD wPort,DWORD dwAddress); 55 int WINAPI WspiapiQueryDNS (const char *pszNodeName,int iSocketType,int iProtocol,WORD wPort,char pszAlias[NI_MAXHOST],struct addrinfo **pptResult); 56 int WINAPI WspiapiLookupNode (const char *pszNodeName,int iSocketType,int iProtocol,WORD wPort,WINBOOL bAI_CANONNAME,struct addrinfo **pptResult); 57 int WINAPI WspiapiClone (WORD wPort,struct addrinfo *ptResult); 58 void WINAPI WspiapiLegacyFreeAddrInfo (struct addrinfo *ptHead); 59 int WINAPI WspiapiLegacyGetAddrInfo(const char *pszNodeName,const char *pszServiceName,const struct addrinfo *ptHints,struct addrinfo **pptResult); 60 int WINAPI WspiapiLegacyGetNameInfo(const struct sockaddr *ptSocketAddress,socklen_t tSocketLength,char *pszNodeName,size_t tNodeLength,char *pszServiceName,size_t tServiceLength,int iFlags); 61 FARPROC WINAPI WspiapiLoad(WORD wFunction); 62 int WINAPI WspiapiGetAddrInfo(const char *nodename,const char *servname,const struct addrinfo *hints,struct addrinfo **res); 63 int WINAPI WspiapiGetNameInfo (const struct sockaddr *sa,socklen_t salen,char *host,size_t hostlen,char *serv,size_t servlen,int flags); 64 void WINAPI WspiapiFreeAddrInfo (struct addrinfo *ai); 65 66 #ifndef __CRT__NO_INLINE 67 __CRT_INLINE char * WINAPI 68 WspiapiStrdup (const char *pszString) 69 { 70 char *rstr; 71 size_t szlen; 72 73 if(!pszString) 74 return NULL; 75 szlen = strlen(pszString) + 1; 76 rstr = (char *) WspiapiMalloc (szlen); 77 if (!rstr) 78 return NULL; 79 strcpy (rstr, pszString); 80 return rstr; 81 } 82 83 __CRT_INLINE WINBOOL WINAPI 84 WspiapiParseV4Address (const char *pszAddress, PDWORD pdwAddress) 85 { 86 DWORD dwAddress = 0; 87 const char *h = NULL; 88 int cnt; 89 90 for (cnt = 0,h = pszAddress; *h != 0; h++) 91 if (h[0] == '.') 92 cnt++; 93 if (cnt != 3) 94 return FALSE; 95 dwAddress = inet_addr (pszAddress); 96 if (dwAddress == INADDR_NONE) 97 return FALSE; 98 *pdwAddress = dwAddress; 99 return TRUE; 100 } 101 102 __CRT_INLINE struct addrinfo * WINAPI 103 WspiapiNewAddrInfo (int iSocketType,int iProtocol, WORD wPort,DWORD dwAddress) 104 { 105 struct addrinfo *n; 106 struct sockaddr_in *pa; 107 108 if ((n = (struct addrinfo *) WspiapiMalloc (sizeof (struct addrinfo))) == NULL) 109 return NULL; 110 if ((pa = (struct sockaddr_in *) WspiapiMalloc (sizeof(struct sockaddr_in))) == NULL) 111 { 112 WspiapiFree(n); 113 return NULL; 114 } 115 pa->sin_family = AF_INET; 116 pa->sin_port = wPort; 117 pa->sin_addr.s_addr = dwAddress; 118 n->ai_family = PF_INET; 119 n->ai_socktype = iSocketType; 120 n->ai_protocol = iProtocol; 121 n->ai_addrlen = sizeof (struct sockaddr_in); 122 n->ai_addr = (struct sockaddr *) pa; 123 return n; 124 } 125 126 __CRT_INLINE int WINAPI 127 WspiapiLookupNode (const char *pszNodeName, int iSocketType, int iProtocol, WORD wPort, 128 WINBOOL bAI_CANONNAME, struct addrinfo **pptResult) 129 { 130 int err = 0, cntAlias = 0; 131 char name[NI_MAXHOST] = ""; 132 char alias[NI_MAXHOST] = ""; 133 char *pname = name, *palias = alias, *tmp = NULL; 134 135 strncpy (pname, pszNodeName, NI_MAXHOST - 1); 136 pname[NI_MAXHOST - 1] = 0; 137 for (;;) 138 { 139 err = WspiapiQueryDNS (pszNodeName, iSocketType, iProtocol, wPort, palias, pptResult); 140 if (err) 141 break; 142 if (*pptResult) 143 break; 144 ++cntAlias; 145 if (strlen (palias) == 0 || !strcmp (pname, palias) || cntAlias == 16) 146 { 147 err = EAI_FAIL; 148 break; 149 } 150 WspiapiSwap(pname, palias, tmp); 151 } 152 if (!err && bAI_CANONNAME) 153 { 154 (*pptResult)->ai_canonname = WspiapiStrdup (palias); 155 if (!(*pptResult)->ai_canonname) 156 err = EAI_MEMORY; 157 } 158 return err; 159 } 160 161 __CRT_INLINE int WINAPI 162 WspiapiClone (WORD wPort,struct addrinfo *ptResult) 163 { 164 struct addrinfo *p = NULL; 165 struct addrinfo *n = NULL; 166 167 for (p = ptResult; p != NULL;) 168 { 169 n = WspiapiNewAddrInfo (SOCK_DGRAM, p->ai_protocol, wPort, 170 ((struct sockaddr_in *) p->ai_addr)->sin_addr.s_addr); 171 if (!n) 172 break; 173 n->ai_next = p->ai_next; 174 p->ai_next = n; 175 p = n->ai_next; 176 } 177 if (p != NULL) 178 return EAI_MEMORY; 179 return 0; 180 } 181 182 __CRT_INLINE void WINAPI 183 WspiapiLegacyFreeAddrInfo (struct addrinfo *ptHead) 184 { 185 struct addrinfo *p; 186 187 for (p = ptHead; p != NULL; p = ptHead) 188 { 189 if (p->ai_canonname) 190 WspiapiFree (p->ai_canonname); 191 if (p->ai_addr) 192 WspiapiFree (p->ai_addr); 193 ptHead = p->ai_next; 194 WspiapiFree (p); 195 } 196 } 197 #endif /* !__CRT__NO_INLINE */ 198 199 #ifdef __cplusplus 200 } 201 #endif 202 203 #endif