diff options
Diffstat (limited to 'libs/libcurl/src/system_win32.c')
| -rw-r--r-- | libs/libcurl/src/system_win32.c | 329 |
1 files changed, 329 insertions, 0 deletions
diff --git a/libs/libcurl/src/system_win32.c b/libs/libcurl/src/system_win32.c new file mode 100644 index 0000000000..cfbbf32797 --- /dev/null +++ b/libs/libcurl/src/system_win32.c @@ -0,0 +1,329 @@ +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) 2016 - 2017, Steve Holme, <steve_holme@hotmail.com>. + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms + * are also available at https://curl.haxx.se/docs/copyright.html. + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ***************************************************************************/ + +#include "curl_setup.h" + +#if defined(WIN32) + +#include <curl/curl.h> +#include "system_win32.h" + +/* The last #include files should be: */ +#include "curl_memory.h" +#include "memdebug.h" + +#if defined(USE_WINDOWS_SSPI) || (!defined(CURL_DISABLE_TELNET) && \ + defined(USE_WINSOCK)) + + +#if !defined(LOAD_WITH_ALTERED_SEARCH_PATH) +#define LOAD_WITH_ALTERED_SEARCH_PATH 0x00000008 +#endif + +#if !defined(LOAD_LIBRARY_SEARCH_SYSTEM32) +#define LOAD_LIBRARY_SEARCH_SYSTEM32 0x00000800 +#endif + +/* We use our own typedef here since some headers might lack these */ +typedef HMODULE (APIENTRY *LOADLIBRARYEX_FN)(LPCTSTR, HANDLE, DWORD); + +/* See function definitions in winbase.h */ +#ifdef UNICODE +# ifdef _WIN32_WCE +# define LOADLIBARYEX L"LoadLibraryExW" +# else +# define LOADLIBARYEX "LoadLibraryExW" +# endif +#else +# define LOADLIBARYEX "LoadLibraryExA" +#endif + +#endif /* USE_WINDOWS_SSPI || (!CURL_DISABLE_TELNET && USE_WINSOCK) */ + +/* + * Curl_verify_windows_version() + * + * This is used to verify if we are running on a specific windows version. + * + * Parameters: + * + * majorVersion [in] - The major version number. + * minorVersion [in] - The minor version number. + * platform [in] - The optional platform identifier. + * condition [in] - The test condition used to specifier whether we are + * checking a version less then, equal to or greater than + * what is specified in the major and minor version + * numbers. + * + * Returns TRUE if matched; otherwise FALSE. + */ +bool Curl_verify_windows_version(const unsigned int majorVersion, + const unsigned int minorVersion, + const PlatformIdentifier platform, + const VersionCondition condition) +{ + bool matched = FALSE; + +#if defined(CURL_WINDOWS_APP) + /* We have no way to determine the Windows version from Windows apps, + so let's assume we're running on the target Windows version. */ + const WORD fullVersion = MAKEWORD(minorVersion, majorVersion); + const WORD targetVersion = (WORD)_WIN32_WINNT; + + switch(condition) { + case VERSION_LESS_THAN: + matched = targetVersion < fullVersion; + break; + + case VERSION_LESS_THAN_EQUAL: + matched = targetVersion <= fullVersion; + break; + + case VERSION_EQUAL: + matched = targetVersion == fullVersion; + break; + + case VERSION_GREATER_THAN_EQUAL: + matched = targetVersion >= fullVersion; + break; + + case VERSION_GREATER_THAN: + matched = targetVersion > fullVersion; + break; + } + + if(matched && (platform == PLATFORM_WINDOWS)) { + /* we're always running on PLATFORM_WINNT */ + matched = FALSE; + } +#elif !defined(_WIN32_WINNT) || !defined(_WIN32_WINNT_WIN2K) || \ + (_WIN32_WINNT < _WIN32_WINNT_WIN2K) + OSVERSIONINFO osver; + + memset(&osver, 0, sizeof(osver)); + osver.dwOSVersionInfoSize = sizeof(osver); + + /* Find out Windows version */ + if(GetVersionEx(&osver)) { + /* Verify the Operating System version number */ + switch(condition) { + case VERSION_LESS_THAN: + if(osver.dwMajorVersion < majorVersion || + (osver.dwMajorVersion == majorVersion && + osver.dwMinorVersion < minorVersion)) + matched = TRUE; + break; + + case VERSION_LESS_THAN_EQUAL: + if(osver.dwMajorVersion <= majorVersion && + osver.dwMinorVersion <= minorVersion) + matched = TRUE; + break; + + case VERSION_EQUAL: + if(osver.dwMajorVersion == majorVersion && + osver.dwMinorVersion == minorVersion) + matched = TRUE; + break; + + case VERSION_GREATER_THAN_EQUAL: + if(osver.dwMajorVersion >= majorVersion && + osver.dwMinorVersion >= minorVersion) + matched = TRUE; + break; + + case VERSION_GREATER_THAN: + if(osver.dwMajorVersion > majorVersion || + (osver.dwMajorVersion == majorVersion && + osver.dwMinorVersion > minorVersion)) + matched = TRUE; + break; + } + + /* Verify the platform identifier (if necessary) */ + if(matched) { + switch(platform) { + case PLATFORM_WINDOWS: + if(osver.dwPlatformId != VER_PLATFORM_WIN32_WINDOWS) + matched = FALSE; + break; + + case PLATFORM_WINNT: + if(osver.dwPlatformId != VER_PLATFORM_WIN32_NT) + matched = FALSE; + + default: /* like platform == PLATFORM_DONT_CARE */ + break; + } + } + } +#else + ULONGLONG cm = 0; + OSVERSIONINFOEX osver; + BYTE majorCondition; + BYTE minorCondition; + BYTE spMajorCondition; + BYTE spMinorCondition; + + switch(condition) { + case VERSION_LESS_THAN: + majorCondition = VER_LESS; + minorCondition = VER_LESS; + spMajorCondition = VER_LESS_EQUAL; + spMinorCondition = VER_LESS_EQUAL; + break; + + case VERSION_LESS_THAN_EQUAL: + majorCondition = VER_LESS_EQUAL; + minorCondition = VER_LESS_EQUAL; + spMajorCondition = VER_LESS_EQUAL; + spMinorCondition = VER_LESS_EQUAL; + break; + + case VERSION_EQUAL: + majorCondition = VER_EQUAL; + minorCondition = VER_EQUAL; + spMajorCondition = VER_GREATER_EQUAL; + spMinorCondition = VER_GREATER_EQUAL; + break; + + case VERSION_GREATER_THAN_EQUAL: + majorCondition = VER_GREATER_EQUAL; + minorCondition = VER_GREATER_EQUAL; + spMajorCondition = VER_GREATER_EQUAL; + spMinorCondition = VER_GREATER_EQUAL; + break; + + case VERSION_GREATER_THAN: + majorCondition = VER_GREATER; + minorCondition = VER_GREATER; + spMajorCondition = VER_GREATER_EQUAL; + spMinorCondition = VER_GREATER_EQUAL; + break; + + default: + return FALSE; + } + + memset(&osver, 0, sizeof(osver)); + osver.dwOSVersionInfoSize = sizeof(osver); + osver.dwMajorVersion = majorVersion; + osver.dwMinorVersion = minorVersion; + if(platform == PLATFORM_WINDOWS) + osver.dwPlatformId = VER_PLATFORM_WIN32_WINDOWS; + else if(platform == PLATFORM_WINNT) + osver.dwPlatformId = VER_PLATFORM_WIN32_NT; + + cm = VerSetConditionMask(cm, VER_MAJORVERSION, majorCondition); + cm = VerSetConditionMask(cm, VER_MINORVERSION, minorCondition); + cm = VerSetConditionMask(cm, VER_SERVICEPACKMAJOR, spMajorCondition); + cm = VerSetConditionMask(cm, VER_SERVICEPACKMINOR, spMinorCondition); + if(platform != PLATFORM_DONT_CARE) + cm = VerSetConditionMask(cm, VER_PLATFORMID, VER_EQUAL); + + if(VerifyVersionInfo(&osver, (VER_MAJORVERSION | VER_MINORVERSION | + VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR), + cm)) + matched = TRUE; +#endif + + return matched; +} + +#if defined(USE_WINDOWS_SSPI) || (!defined(CURL_DISABLE_TELNET) && \ + defined(USE_WINSOCK)) + +/* + * Curl_load_library() + * + * This is used to dynamically load DLLs using the most secure method available + * for the version of Windows that we are running on. + * + * Parameters: + * + * filename [in] - The filename or full path of the DLL to load. If only the + * filename is passed then the DLL will be loaded from the + * Windows system directory. + * + * Returns the handle of the module on success; otherwise NULL. + */ +HMODULE Curl_load_library(LPCTSTR filename) +{ + HMODULE hModule = NULL; + LOADLIBRARYEX_FN pLoadLibraryEx = NULL; + + /* Get a handle to kernel32 so we can access it's functions at runtime */ + HMODULE hKernel32 = GetModuleHandle(TEXT("kernel32")); + if(!hKernel32) + return NULL; + + /* Attempt to find LoadLibraryEx() which is only available on Windows 2000 + and above */ + pLoadLibraryEx = (LOADLIBRARYEX_FN) GetProcAddress(hKernel32, LOADLIBARYEX); + + /* Detect if there's already a path in the filename and load the library if + there is. Note: Both back slashes and forward slashes have been supported + since the earlier days of DOS at an API level although they are not + supported by command prompt */ + if(_tcspbrk(filename, TEXT("\\/"))) { + /** !checksrc! disable BANNEDFUNC 1 **/ + hModule = pLoadLibraryEx ? + pLoadLibraryEx(filename, NULL, LOAD_WITH_ALTERED_SEARCH_PATH) : + LoadLibrary(filename); + } + /* Detect if KB2533623 is installed, as LOAD_LIBARY_SEARCH_SYSTEM32 is only + supported on Windows Vista, Windows Server 2008, Windows 7 and Windows + Server 2008 R2 with this patch or natively on Windows 8 and above */ + else if(pLoadLibraryEx && GetProcAddress(hKernel32, "AddDllDirectory")) { + /* Load the DLL from the Windows system directory */ + hModule = pLoadLibraryEx(filename, NULL, LOAD_LIBRARY_SEARCH_SYSTEM32); + } + else { + /* Attempt to get the Windows system path */ + UINT systemdirlen = GetSystemDirectory(NULL, 0); + if(systemdirlen) { + /* Allocate space for the full DLL path (Room for the null terminator + is included in systemdirlen) */ + size_t filenamelen = _tcslen(filename); + TCHAR *path = malloc(sizeof(TCHAR) * (systemdirlen + 1 + filenamelen)); + if(path && GetSystemDirectory(path, systemdirlen)) { + /* Calculate the full DLL path */ + _tcscpy(path + _tcslen(path), TEXT("\\")); + _tcscpy(path + _tcslen(path), filename); + + /* Load the DLL from the Windows system directory */ + /** !checksrc! disable BANNEDFUNC 1 **/ + hModule = pLoadLibraryEx ? + pLoadLibraryEx(path, NULL, LOAD_WITH_ALTERED_SEARCH_PATH) : + LoadLibrary(path); + + } + free(path); + } + } + + return hModule; +} + +#endif /* USE_WINDOWS_SSPI || (!CURL_DISABLE_TELNET && USE_WINSOCK) */ + +#endif /* WIN32 */ |