mirror of
https://github.com/curl/curl.git
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122 lines
3.6 KiB
C
122 lines
3.6 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2009, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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#include "setup.h"
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#ifdef USE_WINDOWS_SSPI
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#include <curl/curl.h>
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#include "curl_sspi.h"
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#define _MPRINTF_REPLACE /* use our functions only */
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#include <curl/mprintf.h>
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#include "curl_memory.h"
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/* The last #include file should be: */
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#include "memdebug.h"
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/* We use our own typedef here since some headers might lack these */
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typedef PSecurityFunctionTableA (APIENTRY *INITSECURITYINTERFACE_FN_A)(VOID);
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/* Handle of security.dll or secur32.dll, depending on Windows version */
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HMODULE s_hSecDll = NULL;
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/* Pointer to SSPI dispatch table */
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PSecurityFunctionTableA s_pSecFn = NULL;
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/*
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* Curl_sspi_global_init()
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*
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* This is used to load the Security Service Provider Interface (SSPI)
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* dynamic link library portably across all Windows versions, without
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* the need to directly link libcurl, nor the application using it, at
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* build time.
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*
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* Once this function has been executed, Windows SSPI functions can be
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* called through the Security Service Provider Interface dispatch table.
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*/
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CURLcode
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Curl_sspi_global_init(void)
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{
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OSVERSIONINFO osver;
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INITSECURITYINTERFACE_FN_A pInitSecurityInterface;
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/* If security interface is not yet initialized try to do this */
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if(s_hSecDll == NULL) {
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/* Find out Windows version */
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memset(&osver, 0, sizeof(osver));
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osver.dwOSVersionInfoSize = sizeof(osver);
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if(! GetVersionEx(&osver))
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return CURLE_FAILED_INIT;
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/* Security Service Provider Interface (SSPI) functions are located in
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* security.dll on WinNT 4.0 and in secur32.dll on Win9x. Win2K and XP
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* have both these DLLs (security.dll forwards calls to secur32.dll) */
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/* Load SSPI dll into the address space of the calling process */
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if(osver.dwPlatformId == VER_PLATFORM_WIN32_NT
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&& osver.dwMajorVersion == 4)
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s_hSecDll = LoadLibrary("security.dll");
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else
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s_hSecDll = LoadLibrary("secur32.dll");
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if(! s_hSecDll)
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return CURLE_FAILED_INIT;
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/* Get address of the InitSecurityInterfaceA function from the SSPI dll */
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pInitSecurityInterface = (INITSECURITYINTERFACE_FN_A)
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GetProcAddress(s_hSecDll, "InitSecurityInterfaceA");
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if(! pInitSecurityInterface)
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return CURLE_FAILED_INIT;
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/* Get pointer to Security Service Provider Interface dispatch table */
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s_pSecFn = pInitSecurityInterface();
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if(! s_pSecFn)
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return CURLE_FAILED_INIT;
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}
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return CURLE_OK;
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}
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/*
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* Curl_sspi_global_cleanup()
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*
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* This deinitializes the Security Service Provider Interface from libcurl.
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*/
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void
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Curl_sspi_global_cleanup(void)
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{
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if(s_hSecDll) {
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FreeLibrary(s_hSecDll);
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s_hSecDll = NULL;
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s_pSecFn = NULL;
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}
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}
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#endif /* USE_WINDOWS_SSPI */
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