240 lines
7.4 KiB
C
240 lines
7.4 KiB
C
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 2016 - 2021, 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.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"
|
|
#include "version_win32.h"
|
|
#include "curl_sspi.h"
|
|
#include "warnless.h"
|
|
|
|
/* The last #include files should be: */
|
|
#include "curl_memory.h"
|
|
#include "memdebug.h"
|
|
|
|
LARGE_INTEGER Curl_freq;
|
|
bool Curl_isVistaOrGreater;
|
|
|
|
/* Handle of iphlpapp.dll */
|
|
static HMODULE s_hIpHlpApiDll = NULL;
|
|
|
|
/* Pointer to the if_nametoindex function */
|
|
IF_NAMETOINDEX_FN Curl_if_nametoindex = NULL;
|
|
|
|
/* Curl_win32_init() performs win32 global initialization */
|
|
CURLcode Curl_win32_init(long flags)
|
|
{
|
|
/* CURL_GLOBAL_WIN32 controls the *optional* part of the initialization which
|
|
is just for Winsock at the moment. Any required win32 initialization
|
|
should take place after this block. */
|
|
if(flags & CURL_GLOBAL_WIN32) {
|
|
#ifdef USE_WINSOCK
|
|
WORD wVersionRequested;
|
|
WSADATA wsaData;
|
|
int res;
|
|
|
|
wVersionRequested = MAKEWORD(2, 2);
|
|
res = WSAStartup(wVersionRequested, &wsaData);
|
|
|
|
if(res)
|
|
/* Tell the user that we couldn't find a usable */
|
|
/* winsock.dll. */
|
|
return CURLE_FAILED_INIT;
|
|
|
|
/* Confirm that the Windows Sockets DLL supports what we need.*/
|
|
/* Note that if the DLL supports versions greater */
|
|
/* than wVersionRequested, it will still return */
|
|
/* wVersionRequested in wVersion. wHighVersion contains the */
|
|
/* highest supported version. */
|
|
|
|
if(LOBYTE(wsaData.wVersion) != LOBYTE(wVersionRequested) ||
|
|
HIBYTE(wsaData.wVersion) != HIBYTE(wVersionRequested) ) {
|
|
/* Tell the user that we couldn't find a usable */
|
|
|
|
/* winsock.dll. */
|
|
WSACleanup();
|
|
return CURLE_FAILED_INIT;
|
|
}
|
|
/* The Windows Sockets DLL is acceptable. Proceed. */
|
|
#elif defined(USE_LWIPSOCK)
|
|
lwip_init();
|
|
#endif
|
|
} /* CURL_GLOBAL_WIN32 */
|
|
|
|
#ifdef USE_WINDOWS_SSPI
|
|
{
|
|
CURLcode result = Curl_sspi_global_init();
|
|
if(result)
|
|
return result;
|
|
}
|
|
#endif
|
|
|
|
s_hIpHlpApiDll = Curl_load_library(TEXT("iphlpapi.dll"));
|
|
if(s_hIpHlpApiDll) {
|
|
/* Get the address of the if_nametoindex function */
|
|
IF_NAMETOINDEX_FN pIfNameToIndex =
|
|
CURLX_FUNCTION_CAST(IF_NAMETOINDEX_FN,
|
|
(GetProcAddress(s_hIpHlpApiDll, "if_nametoindex")));
|
|
|
|
if(pIfNameToIndex)
|
|
Curl_if_nametoindex = pIfNameToIndex;
|
|
}
|
|
|
|
/* curlx_verify_windows_version must be called during init at least once
|
|
because it has its own initialization routine. */
|
|
if(curlx_verify_windows_version(6, 0, PLATFORM_WINNT,
|
|
VERSION_GREATER_THAN_EQUAL)) {
|
|
Curl_isVistaOrGreater = TRUE;
|
|
}
|
|
else
|
|
Curl_isVistaOrGreater = FALSE;
|
|
|
|
QueryPerformanceFrequency(&Curl_freq);
|
|
return CURLE_OK;
|
|
}
|
|
|
|
/* Curl_win32_cleanup() is the opposite of Curl_win32_init() */
|
|
void Curl_win32_cleanup(long init_flags)
|
|
{
|
|
if(s_hIpHlpApiDll) {
|
|
FreeLibrary(s_hIpHlpApiDll);
|
|
s_hIpHlpApiDll = NULL;
|
|
Curl_if_nametoindex = NULL;
|
|
}
|
|
|
|
#ifdef USE_WINDOWS_SSPI
|
|
Curl_sspi_global_cleanup();
|
|
#endif
|
|
|
|
if(init_flags & CURL_GLOBAL_WIN32) {
|
|
#ifdef USE_WINSOCK
|
|
WSACleanup();
|
|
#endif
|
|
}
|
|
}
|
|
|
|
#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
|
|
|
|
/*
|
|
* 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)
|
|
{
|
|
#ifndef CURL_WINDOWS_APP
|
|
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 =
|
|
CURLX_FUNCTION_CAST(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_LIBRARY_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;
|
|
#else
|
|
/* the Universal Windows Platform (UWP) can't do this */
|
|
(void)filename;
|
|
return NULL;
|
|
#endif
|
|
}
|
|
|
|
#endif /* WIN32 */
|