mirror of
https://git.libssh.org/projects/libssh.git
synced 2025-08-08 19:02:06 +03:00
Improve checks for Windows version and wspiapi.h.
This commit is contained in:
@@ -23,6 +23,7 @@ endif(CMAKE_COMPILER_IS_GNUC)
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# HEADER FILES
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# HEADER FILES
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check_include_file(pty.h HAVE_PTY_H)
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check_include_file(pty.h HAVE_PTY_H)
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check_include_file(terminos.h HAVE_TERMIOS_H)
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check_include_file(terminos.h HAVE_TERMIOS_H)
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check_include_file(wspiapi.h HAVE_WSPIAPI_H)
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set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIRS})
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set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIRS})
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check_include_file(openssl/aes.h HAVE_OPENSSL_AES_H)
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check_include_file(openssl/aes.h HAVE_OPENSSL_AES_H)
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@@ -23,6 +23,9 @@
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/* Define to 1 if you have the <openssl/aes.h> header file. */
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/* Define to 1 if you have the <openssl/aes.h> header file. */
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#cmakedefine HAVE_OPENSSL_AES_H 1
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#cmakedefine HAVE_OPENSSL_AES_H 1
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/* Define to 1 if you have the <wspiapi.h> header file. */
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#cmakedefine HAVE_WSPIAPI_H 1
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/* Define to 1 if you have the <openssl/blowfish.h> header file. */
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/* Define to 1 if you have the <openssl/blowfish.h> header file. */
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#cmakedefine HAVE_OPENSSL_BLOWFISH_H 1
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#cmakedefine HAVE_OPENSSL_BLOWFISH_H 1
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@@ -1,999 +0,0 @@
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/*++
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Copyright (c) 2000, Microsoft Corporation
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Module Name:
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wspiapi.h
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Abstract:
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The file contains protocol independent API functions.
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Revision History:
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Wed Jul 12 10:50:31 2000, Created
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--*/
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#ifndef _WSPIAPI_H_
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#define _WSPIAPI_H_
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#include <stdio.h> // sprintf()
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#include <stdlib.h> // calloc(), strtoul()
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#include <malloc.h> // calloc()
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#include <string.h> // strlen(), strcmp(), strstr()
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#define WspiapiMalloc(tSize) calloc(1, (tSize))
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#define WspiapiFree(p) free(p)
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#define WspiapiSwap(a, b, c) { (c) = (a); (a) = (b); (b) = (c); }
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#define getaddrinfo WspiapiGetAddrInfo
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#define getnameinfo WspiapiGetNameInfo
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#define freeaddrinfo WspiapiFreeAddrInfo
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typedef int (WINAPI *WSPIAPI_PGETADDRINFO) (
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IN const char *nodename,
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IN const char *servname,
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IN const struct addrinfo *hints,
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OUT struct addrinfo **res);
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typedef int (WINAPI *WSPIAPI_PGETNAMEINFO) (
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IN const struct sockaddr *sa,
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IN socklen_t salen,
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OUT char *host,
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IN size_t hostlen,
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OUT char *serv,
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IN size_t servlen,
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IN int flags);
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typedef void (WINAPI *WSPIAPI_PFREEADDRINFO) (
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IN struct addrinfo *ai);
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#ifdef __cplusplus
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extern "C" {
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#endif
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////////////////////////////////////////////////////////////
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// v4 only versions of getaddrinfo and friends.
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// NOTE: gai_strerror is inlined in ws2tcpip.h
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////////////////////////////////////////////////////////////
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__inline
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char *
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WINAPI
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WspiapiStrdup (
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IN const char * pszString)
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/*++
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Routine Description
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allocates enough storage via calloc() for a copy of the string,
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copies the string into the new memory, and returns a pointer to it.
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Arguments
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pszString string to copy into new memory
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Return Value
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a pointer to the newly allocated storage with the string in it.
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NULL if enough memory could not be allocated, or string was NULL.
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--*/
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{
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char *pszMemory;
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if (!pszString)
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return(NULL);
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pszMemory = (char *) WspiapiMalloc(strlen(pszString) + 1);
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if (!pszMemory)
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return(NULL);
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return(strcpy(pszMemory, pszString));
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}
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__inline
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BOOL
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WINAPI
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WspiapiParseV4Address (
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IN const char * pszAddress,
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OUT PDWORD pdwAddress)
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/*++
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Routine Description
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get the IPv4 address (in network byte order) from its string
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representation. the syntax should be a.b.c.d.
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Arguments
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pszArgument string representation of the IPv4 address
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ptAddress pointer to the resulting IPv4 address
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Return Value
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Returns FALSE if there is an error, TRUE for success.
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--*/
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{
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DWORD dwAddress = 0;
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const char *pcNext = NULL;
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int iCount = 0;
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// ensure there are 3 '.' (periods)
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for (pcNext = pszAddress; *pcNext != '\0'; pcNext++)
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if (*pcNext == '.')
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iCount++;
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if (iCount != 3)
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return FALSE;
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// return an error if dwAddress is INADDR_NONE (255.255.255.255)
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// since this is never a valid argument to getaddrinfo.
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dwAddress = inet_addr(pszAddress);
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if (dwAddress == INADDR_NONE)
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return FALSE;
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*pdwAddress = dwAddress;
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return TRUE;
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}
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__inline
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struct addrinfo *
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WINAPI
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WspiapiNewAddrInfo (
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IN int iSocketType,
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IN int iProtocol,
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IN WORD wPort,
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IN DWORD dwAddress)
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/*++
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Routine Description
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allocate an addrinfo structure and populate fields.
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IPv4 specific internal function, not exported.
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Arguments
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iSocketType SOCK_*. can be wildcarded (zero).
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iProtocol IPPROTO_*. can be wildcarded (zero).
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wPort port number of service (in network order).
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dwAddress IPv4 address (in network order).
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Return Value
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returns an addrinfo struct, or NULL if out of memory.
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--*/
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{
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struct addrinfo *ptNew;
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struct sockaddr_in *ptAddress;
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// allocate a new addrinfo structure.
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ptNew =
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(struct addrinfo *) WspiapiMalloc(sizeof(struct addrinfo));
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if (!ptNew)
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return NULL;
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ptAddress =
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(struct sockaddr_in *) WspiapiMalloc(sizeof(struct sockaddr_in));
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if (!ptAddress)
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{
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WspiapiFree(ptNew);
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return NULL;
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}
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ptAddress->sin_family = AF_INET;
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ptAddress->sin_port = wPort;
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ptAddress->sin_addr.s_addr = dwAddress;
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// fill in the fields...
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ptNew->ai_family = PF_INET;
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ptNew->ai_socktype = iSocketType;
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ptNew->ai_protocol = iProtocol;
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ptNew->ai_addrlen = sizeof(struct sockaddr_in);
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ptNew->ai_addr = (struct sockaddr *) ptAddress;
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return ptNew;
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}
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__inline
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int
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WINAPI
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WspiapiQueryDNS(
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IN const char *pszNodeName,
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IN int iSocketType,
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IN int iProtocol,
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IN WORD wPort,
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OUT char *pszAlias,
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OUT struct addrinfo **pptResult)
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/*++
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Routine Description
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helper routine for WspiapiLookupNode.
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performs name resolution by querying the DNS for A records.
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*pptResult would need to be freed if an error is returned.
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Arguments
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pszNodeName name of node to resolve.
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iSocketType SOCK_*. can be wildcarded (zero).
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iProtocol IPPROTO_*. can be wildcarded (zero).
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wPort port number of service (in network order).
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pszAlias where to return the alias.
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pptResult where to return the result.
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Return Value
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Returns 0 on success, an EAI_* style error value otherwise.
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--*/
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{
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struct addrinfo **pptNext = pptResult;
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struct hostent *ptHost = NULL;
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char **ppAddresses;
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*pptNext = NULL;
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pszAlias[0] = '\0';
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||||||
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ptHost = gethostbyname(pszNodeName);
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if (ptHost)
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{
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if ((ptHost->h_addrtype == AF_INET) &&
|
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||||||
(ptHost->h_length == sizeof(struct in_addr)))
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||||||
{
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for (ppAddresses = ptHost->h_addr_list;
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||||||
*ppAddresses != NULL;
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ppAddresses++)
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||||||
{
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// create an addrinfo structure...
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*pptNext = WspiapiNewAddrInfo(
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iSocketType,
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iProtocol,
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wPort,
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((struct in_addr *) *ppAddresses)->s_addr);
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|
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if (!*pptNext)
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return EAI_MEMORY;
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||||||
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pptNext = &((*pptNext)->ai_next);
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}
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}
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// pick up the canonical name.
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strcpy(pszAlias, ptHost->h_name);
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return 0;
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}
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|
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|
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switch (WSAGetLastError())
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|
||||||
{
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|
||||||
case WSAHOST_NOT_FOUND: return EAI_NONAME;
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|
||||||
case WSATRY_AGAIN: return EAI_AGAIN;
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|
||||||
case WSANO_RECOVERY: return EAI_FAIL;
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|
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case WSANO_DATA: return EAI_NODATA;
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|
||||||
default: return EAI_NONAME;
|
|
||||||
}
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|
||||||
}
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||||||
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||||||
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__inline
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|
||||||
int
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||||||
WINAPI
|
|
||||||
WspiapiLookupNode(
|
|
||||||
IN const char *pszNodeName,
|
|
||||||
IN int iSocketType,
|
|
||||||
IN int iProtocol,
|
|
||||||
IN WORD wPort,
|
|
||||||
IN BOOL bAI_CANONNAME,
|
|
||||||
OUT struct addrinfo **pptResult)
|
|
||||||
/*++
|
|
||||||
|
|
||||||
Routine Description
|
|
||||||
resolve a nodename and return a list of addrinfo structures.
|
|
||||||
IPv4 specific internal function, not exported.
|
|
||||||
*pptResult would need to be freed if an error is returned.
|
|
||||||
|
|
||||||
NOTE: if bAI_CANONNAME is true, the canonical name should be
|
|
||||||
returned in the first addrinfo structure.
|
|
||||||
|
|
||||||
Arguments
|
|
||||||
pszNodeName name of node to resolve.
|
|
||||||
iSocketType SOCK_*. can be wildcarded (zero).
|
|
||||||
iProtocol IPPROTO_*. can be wildcarded (zero).
|
|
||||||
wPort port number of service (in network order).
|
|
||||||
bAI_CANONNAME whether the AI_CANONNAME flag is set.
|
|
||||||
pptResult where to return result.
|
|
||||||
|
|
||||||
Return Value
|
|
||||||
Returns 0 on success, an EAI_* style error value otherwise.
|
|
||||||
|
|
||||||
--*/
|
|
||||||
{
|
|
||||||
int iError = 0;
|
|
||||||
int iAliasCount = 0;
|
|
||||||
|
|
||||||
char szFQDN1[NI_MAXHOST] = "";
|
|
||||||
char szFQDN2[NI_MAXHOST] = "";
|
|
||||||
char *pszName = szFQDN1;
|
|
||||||
char *pszAlias = szFQDN2;
|
|
||||||
char *pszScratch = NULL;
|
|
||||||
strcpy(pszName, pszNodeName);
|
|
||||||
|
|
||||||
for (;;)
|
|
||||||
{
|
|
||||||
iError = WspiapiQueryDNS(pszNodeName,
|
|
||||||
iSocketType,
|
|
||||||
iProtocol,
|
|
||||||
wPort,
|
|
||||||
pszAlias,
|
|
||||||
pptResult);
|
|
||||||
if (iError)
|
|
||||||
break;
|
|
||||||
|
|
||||||
// if we found addresses, then we are done.
|
|
||||||
if (*pptResult)
|
|
||||||
break;
|
|
||||||
|
|
||||||
// stop infinite loops due to DNS misconfiguration. there appears
|
|
||||||
// to be no particular recommended limit in RFCs 1034 and 1035.
|
|
||||||
if ((!strlen(pszAlias)) ||
|
|
||||||
(!strcmp(pszName, pszAlias)) ||
|
|
||||||
(++iAliasCount == 16))
|
|
||||||
{
|
|
||||||
iError = EAI_FAIL;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
// there was a new CNAME, look again.
|
|
||||||
WspiapiSwap(pszName, pszAlias, pszScratch);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (!iError && bAI_CANONNAME)
|
|
||||||
{
|
|
||||||
(*pptResult)->ai_canonname = WspiapiStrdup(pszAlias);
|
|
||||||
if (!(*pptResult)->ai_canonname)
|
|
||||||
iError = EAI_MEMORY;
|
|
||||||
}
|
|
||||||
|
|
||||||
return iError;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
__inline
|
|
||||||
int
|
|
||||||
WINAPI
|
|
||||||
WspiapiClone (
|
|
||||||
IN WORD wPort,
|
|
||||||
IN struct addrinfo *ptResult)
|
|
||||||
/*++
|
|
||||||
|
|
||||||
Routine Description
|
|
||||||
clone every addrinfo structure in ptResult for the UDP service.
|
|
||||||
ptResult would need to be freed if an error is returned.
|
|
||||||
|
|
||||||
Arguments
|
|
||||||
wPort port number of UDP service.
|
|
||||||
ptResult list of addrinfo structures, each
|
|
||||||
of whose node needs to be cloned.
|
|
||||||
|
|
||||||
Return Value
|
|
||||||
Returns 0 on success, an EAI_MEMORY on allocation failure.
|
|
||||||
|
|
||||||
--*/
|
|
||||||
{
|
|
||||||
struct addrinfo *ptNext = NULL;
|
|
||||||
struct addrinfo *ptNew = NULL;
|
|
||||||
|
|
||||||
for (ptNext = ptResult; ptNext != NULL; )
|
|
||||||
{
|
|
||||||
// create an addrinfo structure...
|
|
||||||
ptNew = WspiapiNewAddrInfo(
|
|
||||||
SOCK_DGRAM,
|
|
||||||
ptNext->ai_protocol,
|
|
||||||
wPort,
|
|
||||||
((struct sockaddr_in *) ptNext->ai_addr)->sin_addr.s_addr);
|
|
||||||
if (!ptNew)
|
|
||||||
break;
|
|
||||||
|
|
||||||
// link the cloned addrinfo
|
|
||||||
ptNew->ai_next = ptNext->ai_next;
|
|
||||||
ptNext->ai_next = ptNew;
|
|
||||||
ptNext = ptNew->ai_next;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (ptNext != NULL)
|
|
||||||
return EAI_MEMORY;
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
__inline
|
|
||||||
void
|
|
||||||
WINAPI
|
|
||||||
WspiapiLegacyFreeAddrInfo (
|
|
||||||
IN struct addrinfo *ptHead)
|
|
||||||
/*++
|
|
||||||
|
|
||||||
Routine Description
|
|
||||||
Free an addrinfo structure (or chain of structures).
|
|
||||||
As specified in RFC 2553, Section 6.4.
|
|
||||||
|
|
||||||
Arguments
|
|
||||||
ptHead structure (chain) to free
|
|
||||||
|
|
||||||
--*/
|
|
||||||
{
|
|
||||||
struct addrinfo *ptNext; // next strcture to free
|
|
||||||
|
|
||||||
for (ptNext = ptHead; ptNext != NULL; ptNext = ptHead)
|
|
||||||
{
|
|
||||||
if (ptNext->ai_canonname)
|
|
||||||
WspiapiFree(ptNext->ai_canonname);
|
|
||||||
|
|
||||||
if (ptNext->ai_addr)
|
|
||||||
WspiapiFree(ptNext->ai_addr);
|
|
||||||
|
|
||||||
ptHead = ptNext->ai_next;
|
|
||||||
WspiapiFree(ptNext);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
__inline
|
|
||||||
int
|
|
||||||
WINAPI
|
|
||||||
WspiapiLegacyGetAddrInfo(
|
|
||||||
IN const char *pszNodeName,
|
|
||||||
IN const char *pszServiceName,
|
|
||||||
IN const struct addrinfo *ptHints,
|
|
||||||
OUT struct addrinfo **pptResult)
|
|
||||||
/*++
|
|
||||||
|
|
||||||
Routine Description
|
|
||||||
Protocol-independent name-to-address translation.
|
|
||||||
As specified in RFC 2553, Section 6.4.
|
|
||||||
This is the hacked version that only supports IPv4.
|
|
||||||
|
|
||||||
Arguments
|
|
||||||
pszNodeName node name to lookup.
|
|
||||||
pszServiceName service name to lookup.
|
|
||||||
ptHints hints about how to process request.
|
|
||||||
pptResult where to return result.
|
|
||||||
|
|
||||||
Return Value
|
|
||||||
returns zero if successful, an EAI_* error code if not.
|
|
||||||
|
|
||||||
--*/
|
|
||||||
{
|
|
||||||
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;
|
|
||||||
BOOL bClone = FALSE;
|
|
||||||
WORD wTcpPort = 0;
|
|
||||||
WORD wUdpPort = 0;
|
|
||||||
|
|
||||||
|
|
||||||
// initialize pptResult with default return value.
|
|
||||||
*pptResult = NULL;
|
|
||||||
|
|
||||||
|
|
||||||
////////////////////////////////////////
|
|
||||||
// validate arguments...
|
|
||||||
//
|
|
||||||
|
|
||||||
// both the node name and the service name can't be NULL.
|
|
||||||
if ((!pszNodeName) && (!pszServiceName))
|
|
||||||
return EAI_NONAME;
|
|
||||||
|
|
||||||
// validate hints.
|
|
||||||
if (ptHints)
|
|
||||||
{
|
|
||||||
// all members other than ai_flags, ai_family, ai_socktype
|
|
||||||
// and ai_protocol must be zero or a null pointer.
|
|
||||||
if ((ptHints->ai_addrlen != 0) ||
|
|
||||||
(ptHints->ai_canonname != NULL) ||
|
|
||||||
(ptHints->ai_addr != NULL) ||
|
|
||||||
(ptHints->ai_next != NULL))
|
|
||||||
{
|
|
||||||
return EAI_FAIL;
|
|
||||||
}
|
|
||||||
|
|
||||||
// the spec has the "bad flags" error code, so presumably we
|
|
||||||
// should check something here. insisting that there aren't
|
|
||||||
// any unspecified flags set would break forward compatibility,
|
|
||||||
// however. so we just check for non-sensical combinations.
|
|
||||||
//
|
|
||||||
// we cannot come up with a canonical name given a null node name.
|
|
||||||
iFlags = ptHints->ai_flags;
|
|
||||||
if ((iFlags & AI_CANONNAME) && !pszNodeName)
|
|
||||||
return EAI_BADFLAGS;
|
|
||||||
|
|
||||||
// we only support a limited number of protocol families.
|
|
||||||
iFamily = ptHints->ai_family;
|
|
||||||
if ((iFamily != PF_UNSPEC) && (iFamily != PF_INET))
|
|
||||||
return EAI_FAMILY;
|
|
||||||
|
|
||||||
// we only support only these socket types.
|
|
||||||
iSocketType = ptHints->ai_socktype;
|
|
||||||
if ((iSocketType != 0) &&
|
|
||||||
(iSocketType != SOCK_STREAM) &&
|
|
||||||
(iSocketType != SOCK_DGRAM) &&
|
|
||||||
(iSocketType != SOCK_RAW))
|
|
||||||
return EAI_SOCKTYPE;
|
|
||||||
|
|
||||||
// REVIEW: What if ai_socktype and ai_protocol are at odds?
|
|
||||||
iProtocol = ptHints->ai_protocol;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
////////////////////////////////////////
|
|
||||||
// do service lookup...
|
|
||||||
|
|
||||||
if (pszServiceName)
|
|
||||||
{
|
|
||||||
wPort = (WORD) strtoul(pszServiceName, &pc, 10);
|
|
||||||
if (*pc == '\0') // numeric port string
|
|
||||||
{
|
|
||||||
wPort = wTcpPort = wUdpPort = htons(wPort);
|
|
||||||
if (iSocketType == 0)
|
|
||||||
{
|
|
||||||
bClone = TRUE;
|
|
||||||
iSocketType = SOCK_STREAM;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
else // non numeric port string
|
|
||||||
{
|
|
||||||
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;
|
|
||||||
}
|
|
||||||
|
|
||||||
// assumes 0 is an invalid service port...
|
|
||||||
if (wPort == 0) // no service exists
|
|
||||||
return (iSocketType ? EAI_SERVICE : EAI_NONAME);
|
|
||||||
|
|
||||||
if (iSocketType == 0)
|
|
||||||
{
|
|
||||||
// if both tcp and udp, process tcp now & clone udp later.
|
|
||||||
iSocketType = (wTcpPort) ? SOCK_STREAM : SOCK_DGRAM;
|
|
||||||
bClone = (wTcpPort && wUdpPort);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
////////////////////////////////////////
|
|
||||||
// do node name lookup...
|
|
||||||
|
|
||||||
// if we weren't given a node name,
|
|
||||||
// return the wildcard or loopback address (depending on AI_PASSIVE).
|
|
||||||
//
|
|
||||||
// if we have a numeric host address string,
|
|
||||||
// return the binary address.
|
|
||||||
//
|
|
||||||
if ((!pszNodeName) || (WspiapiParseV4Address(pszNodeName, &dwAddress)))
|
|
||||||
{
|
|
||||||
if (!pszNodeName)
|
|
||||||
{
|
|
||||||
dwAddress = htonl((iFlags & AI_PASSIVE)
|
|
||||||
? INADDR_ANY
|
|
||||||
: INADDR_LOOPBACK);
|
|
||||||
}
|
|
||||||
|
|
||||||
// create an addrinfo structure...
|
|
||||||
*pptResult =
|
|
||||||
WspiapiNewAddrInfo(iSocketType, iProtocol, wPort, dwAddress);
|
|
||||||
if (!(*pptResult))
|
|
||||||
iError = EAI_MEMORY;
|
|
||||||
|
|
||||||
if (!iError && pszNodeName)
|
|
||||||
{
|
|
||||||
// implementation specific behavior: set AI_NUMERICHOST
|
|
||||||
// to indicate that we got a numeric host address string.
|
|
||||||
(*pptResult)->ai_flags |= AI_NUMERICHOST;
|
|
||||||
|
|
||||||
// return the numeric address string as the canonical name
|
|
||||||
if (iFlags & AI_CANONNAME)
|
|
||||||
{
|
|
||||||
(*pptResult)->ai_canonname =
|
|
||||||
WspiapiStrdup(inet_ntoa(*((struct in_addr *) &dwAddress)));
|
|
||||||
if (!(*pptResult)->ai_canonname)
|
|
||||||
iError = EAI_MEMORY;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
// if we do not have a numeric host address string and
|
|
||||||
// AI_NUMERICHOST flag is set, return an error!
|
|
||||||
else if (iFlags & AI_NUMERICHOST)
|
|
||||||
{
|
|
||||||
iError = EAI_NONAME;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
// since we have a non-numeric node name,
|
|
||||||
// we have to do a regular node name lookup.
|
|
||||||
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);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
__inline
|
|
||||||
int
|
|
||||||
WINAPI
|
|
||||||
WspiapiLegacyGetNameInfo(
|
|
||||||
IN const struct sockaddr *ptSocketAddress,
|
|
||||||
IN socklen_t tSocketLength,
|
|
||||||
OUT char *pszNodeName,
|
|
||||||
IN size_t tNodeLength,
|
|
||||||
OUT char *pszServiceName,
|
|
||||||
IN size_t tServiceLength,
|
|
||||||
IN int iFlags)
|
|
||||||
/*++
|
|
||||||
|
|
||||||
Routine Description
|
|
||||||
protocol-independent address-to-name translation.
|
|
||||||
as specified in RFC 2553, Section 6.5.
|
|
||||||
this is the hacked version that only supports IPv4.
|
|
||||||
|
|
||||||
Arguments
|
|
||||||
ptSocketAddress socket address to translate.
|
|
||||||
tSocketLength length of above socket address.
|
|
||||||
pszNodeName where to return the node name.
|
|
||||||
tNodeLength size of above buffer.
|
|
||||||
pszServiceName where to return the service name.
|
|
||||||
tServiceLength size of above buffer.
|
|
||||||
iFlags flags of type NI_*.
|
|
||||||
|
|
||||||
Return Value
|
|
||||||
returns zero if successful, an EAI_* error code if not.
|
|
||||||
|
|
||||||
--*/
|
|
||||||
{
|
|
||||||
struct servent *ptService;
|
|
||||||
WORD wPort;
|
|
||||||
char szBuffer[] = "65535";
|
|
||||||
char *pszService = szBuffer;
|
|
||||||
|
|
||||||
struct hostent *ptHost;
|
|
||||||
struct in_addr tAddress;
|
|
||||||
char *pszNode = NULL;
|
|
||||||
char *pc = NULL;
|
|
||||||
|
|
||||||
|
|
||||||
// sanity check ptSocketAddress and tSocketLength.
|
|
||||||
if (!ptSocketAddress)
|
|
||||||
return EAI_FAIL;
|
|
||||||
|
|
||||||
if ((ptSocketAddress->sa_family != AF_INET) ||
|
|
||||||
(tSocketLength != sizeof(struct sockaddr_in)))
|
|
||||||
{
|
|
||||||
return EAI_FAMILY;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (!(pszNodeName && tNodeLength) &&
|
|
||||||
!(pszServiceName && tServiceLength))
|
|
||||||
{
|
|
||||||
return EAI_NONAME;
|
|
||||||
}
|
|
||||||
|
|
||||||
// the draft has the "bad flags" error code, so presumably we
|
|
||||||
// should check something here. insisting that there aren't
|
|
||||||
// any unspecified flags set would break forward compatibility,
|
|
||||||
// however. so we just check for non-sensical combinations.
|
|
||||||
if ((iFlags & NI_NUMERICHOST) && (iFlags & NI_NAMEREQD))
|
|
||||||
{
|
|
||||||
return EAI_BADFLAGS;
|
|
||||||
}
|
|
||||||
|
|
||||||
// translate the port to a service name (if requested).
|
|
||||||
if (pszServiceName && tServiceLength)
|
|
||||||
{
|
|
||||||
wPort = ((struct sockaddr_in *) ptSocketAddress)->sin_port;
|
|
||||||
|
|
||||||
if (iFlags & NI_NUMERICSERV)
|
|
||||||
{
|
|
||||||
// return numeric form of the address.
|
|
||||||
sprintf(szBuffer, "%u", ntohs(wPort));
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
// return service name corresponding to port.
|
|
||||||
ptService = getservbyport(wPort,
|
|
||||||
(iFlags & NI_DGRAM) ? "udp" : NULL);
|
|
||||||
if (ptService && ptService->s_name)
|
|
||||||
{
|
|
||||||
// lookup successful.
|
|
||||||
pszService = ptService->s_name;
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
// DRAFT: return numeric form of the port!
|
|
||||||
sprintf(szBuffer, "%u", ntohs(wPort));
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
if (tServiceLength > strlen(pszService))
|
|
||||||
strcpy(pszServiceName, pszService);
|
|
||||||
else
|
|
||||||
return EAI_FAIL;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
// translate the address to a node name (if requested).
|
|
||||||
if (pszNodeName && tNodeLength)
|
|
||||||
{
|
|
||||||
// this is the IPv4-only version, so we have an IPv4 address.
|
|
||||||
tAddress = ((struct sockaddr_in *) ptSocketAddress)->sin_addr;
|
|
||||||
|
|
||||||
if (iFlags & NI_NUMERICHOST)
|
|
||||||
{
|
|
||||||
// return numeric form of the address.
|
|
||||||
pszNode = inet_ntoa(tAddress);
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
// return node name corresponding to address.
|
|
||||||
ptHost = gethostbyaddr((char *) &tAddress,
|
|
||||||
sizeof(struct in_addr),
|
|
||||||
AF_INET);
|
|
||||||
if (ptHost && ptHost->h_name)
|
|
||||||
{
|
|
||||||
// DNS lookup successful.
|
|
||||||
// stop copying at a "." if NI_NOFQDN is specified.
|
|
||||||
pszNode = ptHost->h_name;
|
|
||||||
if ((iFlags & NI_NOFQDN) && (pc = strchr(pszNode, '.')))
|
|
||||||
*pc = '\0';
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
// DNS lookup failed. return numeric form of the address.
|
|
||||||
if (iFlags & NI_NAMEREQD)
|
|
||||||
{
|
|
||||||
switch (WSAGetLastError())
|
|
||||||
{
|
|
||||||
case WSAHOST_NOT_FOUND: return EAI_NONAME;
|
|
||||||
case WSATRY_AGAIN: return EAI_AGAIN;
|
|
||||||
case WSANO_RECOVERY: return EAI_FAIL;
|
|
||||||
default: return EAI_NONAME;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
else
|
|
||||||
pszNode = inet_ntoa(tAddress);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (tNodeLength > strlen(pszNode))
|
|
||||||
strcpy(pszNodeName, pszNode);
|
|
||||||
else
|
|
||||||
return EAI_FAIL;
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
typedef struct
|
|
||||||
{
|
|
||||||
char const *pszName;
|
|
||||||
FARPROC pfAddress;
|
|
||||||
} WSPIAPI_FUNCTION;
|
|
||||||
|
|
||||||
#define WSPIAPI_FUNCTION_ARRAY \
|
|
||||||
{ \
|
|
||||||
"getaddrinfo", (FARPROC) WspiapiLegacyGetAddrInfo, \
|
|
||||||
"getnameinfo", (FARPROC) WspiapiLegacyGetNameInfo, \
|
|
||||||
"freeaddrinfo", (FARPROC) WspiapiLegacyFreeAddrInfo, \
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
__inline
|
|
||||||
FARPROC
|
|
||||||
WINAPI
|
|
||||||
WspiapiLoad(
|
|
||||||
IN WORD wFunction)
|
|
||||||
/*++
|
|
||||||
|
|
||||||
Routine Description
|
|
||||||
try to locate the address family independent name resolution routines
|
|
||||||
(i.e. getaddrinfo, getnameinfo, freeaddrinfo, gai_strerror).
|
|
||||||
|
|
||||||
Locks
|
|
||||||
this function call is not synchronized. hence the library containing
|
|
||||||
the routines might be loaded multiple times. another option is to
|
|
||||||
synchronize through a spin lock using a static local variable and the
|
|
||||||
InterlockedExchange operation.
|
|
||||||
|
|
||||||
|
|
||||||
Arguments
|
|
||||||
wFunction ordinal # of the function to get the pointer to
|
|
||||||
0 getaddrinfo
|
|
||||||
1 getnameinfo
|
|
||||||
2 freeaddrinfo
|
|
||||||
|
|
||||||
Return Value
|
|
||||||
address of the library/legacy routine
|
|
||||||
|
|
||||||
--*/
|
|
||||||
{
|
|
||||||
HMODULE hLibrary = NULL;
|
|
||||||
|
|
||||||
// these static variables store state across calls, across threads.
|
|
||||||
static BOOL bInitialized = FALSE;
|
|
||||||
static WSPIAPI_FUNCTION rgtGlobal[] = WSPIAPI_FUNCTION_ARRAY;
|
|
||||||
static const int iNumGlobal = (sizeof(rgtGlobal) /
|
|
||||||
sizeof(WSPIAPI_FUNCTION));
|
|
||||||
|
|
||||||
// we overwrite rgtGlobal only if all routines exist in library.
|
|
||||||
WSPIAPI_FUNCTION rgtLocal[] = WSPIAPI_FUNCTION_ARRAY;
|
|
||||||
FARPROC fScratch = NULL;
|
|
||||||
int i = 0;
|
|
||||||
|
|
||||||
|
|
||||||
if (bInitialized) // WspiapiLoad has already been called once
|
|
||||||
return (rgtGlobal[wFunction].pfAddress);
|
|
||||||
|
|
||||||
do // breakout loop
|
|
||||||
{
|
|
||||||
// in Whistler and beyond...
|
|
||||||
// the routines are present in the WinSock 2 library (ws2_32.dll).
|
|
||||||
// printf("Looking in ws2_32 for getaddrinfo...\n");
|
|
||||||
hLibrary = LoadLibraryA("ws2_32");
|
|
||||||
if (hLibrary != NULL)
|
|
||||||
{
|
|
||||||
fScratch = GetProcAddress(hLibrary, "getaddrinfo");
|
|
||||||
if (fScratch == NULL)
|
|
||||||
{
|
|
||||||
FreeLibrary(hLibrary);
|
|
||||||
hLibrary = NULL;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
if (hLibrary != NULL)
|
|
||||||
break;
|
|
||||||
|
|
||||||
|
|
||||||
// in the IPv6 Technology Preview...
|
|
||||||
// the routines are present in the IPv6 WinSock library (wship6.dll).
|
|
||||||
// printf("Looking in wship6 for getaddrinfo...\n");
|
|
||||||
hLibrary = LoadLibraryA("wship6");
|
|
||||||
if (hLibrary != NULL)
|
|
||||||
{
|
|
||||||
fScratch = GetProcAddress(hLibrary, "getaddrinfo");
|
|
||||||
if (fScratch == NULL)
|
|
||||||
{
|
|
||||||
FreeLibrary(hLibrary);
|
|
||||||
hLibrary = NULL;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
} while (FALSE);
|
|
||||||
|
|
||||||
|
|
||||||
if (hLibrary != NULL)
|
|
||||||
{
|
|
||||||
// use routines from this library...
|
|
||||||
// since getaddrinfo is here, we expect all routines to be here,
|
|
||||||
// but will fall back to IPv4-only if any of them is missing.
|
|
||||||
for (i = 0; i < iNumGlobal; i++)
|
|
||||||
{
|
|
||||||
rgtLocal[i].pfAddress
|
|
||||||
= GetProcAddress(hLibrary, rgtLocal[i].pszName);
|
|
||||||
if (rgtLocal[i].pfAddress == NULL)
|
|
||||||
{
|
|
||||||
FreeLibrary(hLibrary);
|
|
||||||
hLibrary = NULL;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (hLibrary != NULL)
|
|
||||||
{
|
|
||||||
// printf("found!\n");
|
|
||||||
for (i = 0; i < iNumGlobal; i++)
|
|
||||||
rgtGlobal[i].pfAddress = rgtLocal[i].pfAddress;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
bInitialized = TRUE;
|
|
||||||
return (rgtGlobal[wFunction].pfAddress);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
__inline
|
|
||||||
int
|
|
||||||
WINAPI
|
|
||||||
WspiapiGetAddrInfo(
|
|
||||||
IN const char *nodename,
|
|
||||||
IN const char *servname,
|
|
||||||
IN const struct addrinfo *hints,
|
|
||||||
OUT struct addrinfo **res)
|
|
||||||
{
|
|
||||||
static WSPIAPI_PGETADDRINFO pfGetAddrInfo = NULL;
|
|
||||||
|
|
||||||
if (!pfGetAddrInfo)
|
|
||||||
pfGetAddrInfo = (WSPIAPI_PGETADDRINFO) WspiapiLoad(0);
|
|
||||||
return ((*pfGetAddrInfo)
|
|
||||||
(nodename, servname, hints, res));
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
__inline
|
|
||||||
int
|
|
||||||
WINAPI
|
|
||||||
WspiapiGetNameInfo (
|
|
||||||
IN const struct sockaddr *sa,
|
|
||||||
IN socklen_t salen,
|
|
||||||
OUT char *host,
|
|
||||||
IN size_t hostlen,
|
|
||||||
OUT char *serv,
|
|
||||||
IN size_t servlen,
|
|
||||||
IN int flags)
|
|
||||||
{
|
|
||||||
static WSPIAPI_PGETNAMEINFO pfGetNameInfo = NULL;
|
|
||||||
|
|
||||||
if (!pfGetNameInfo)
|
|
||||||
pfGetNameInfo = (WSPIAPI_PGETNAMEINFO) WspiapiLoad(1);
|
|
||||||
return ((*pfGetNameInfo)
|
|
||||||
(sa, salen, host, hostlen, serv, servlen, flags));
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
__inline
|
|
||||||
void
|
|
||||||
WINAPI
|
|
||||||
WspiapiFreeAddrInfo (
|
|
||||||
IN struct addrinfo *ai)
|
|
||||||
{
|
|
||||||
static WSPIAPI_PFREEADDRINFO pfFreeAddrInfo = NULL;
|
|
||||||
|
|
||||||
if (!pfFreeAddrInfo)
|
|
||||||
pfFreeAddrInfo = (WSPIAPI_PFREEADDRINFO) WspiapiLoad(2);
|
|
||||||
(*pfFreeAddrInfo)(ai);
|
|
||||||
}
|
|
||||||
|
|
||||||
#ifdef __cplusplus
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#endif // _WSPIAPI_H_
|
|
@@ -28,13 +28,25 @@
|
|||||||
#include <string.h>
|
#include <string.h>
|
||||||
|
|
||||||
#ifdef _WIN32
|
#ifdef _WIN32
|
||||||
/* getaddrinfo, freeaddrinfo, getnameinfo */
|
/*
|
||||||
#define _WIN32_WINNT 0x0501
|
* Only use Windows API functions available on Windows 2000 SP4 or later.
|
||||||
|
* The available constants are in <sdkddkver.h>.
|
||||||
|
* http://msdn.microsoft.com/en-us/library/aa383745.aspx
|
||||||
|
* http://blogs.msdn.com/oldnewthing/archive/2007/04/11/2079137.aspx
|
||||||
|
*/
|
||||||
|
#undef _WIN32_WINNT
|
||||||
|
#define _WIN32_WINNT 0x0500 /* _WIN32_WINNT_WIN2K */
|
||||||
|
#undef NTDDI_VERSION
|
||||||
|
#define NTDDI_VERSION 0x05000400 /* NTDDI_WIN2KSP4 */
|
||||||
|
|
||||||
#include <winsock2.h>
|
#include <winsock2.h>
|
||||||
#include <ws2tcpip.h>
|
#include <ws2tcpip.h>
|
||||||
|
|
||||||
#include "wspiapi.h" /* Workaround for w2k systems */
|
/* <wspiapi.h> is necessary for getaddrinfo before Windows XP, but it isn't
|
||||||
|
* available on some platforms like MinGW. */
|
||||||
|
#ifdef HAVE_WSPIAPI_H
|
||||||
|
#include <wspiapi.h>
|
||||||
|
#endif
|
||||||
|
|
||||||
#else /* _WIN32 */
|
#else /* _WIN32 */
|
||||||
|
|
||||||
|
Reference in New Issue
Block a user