| /* |
| * Modules |
| * |
| * Copyright 1995 Alexandre Julliard |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| */ |
| |
| #include "config.h" |
| #include "wine/port.h" |
| |
| #include <fcntl.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/types.h> |
| #ifdef HAVE_UNISTD_H |
| # include <unistd.h> |
| #endif |
| #include "ntstatus.h" |
| #define WIN32_NO_STATUS |
| #include "wine/winbase16.h" |
| #include "winerror.h" |
| #include "windef.h" |
| #include "winbase.h" |
| #include "winternl.h" |
| #include "kernel_private.h" |
| |
| #include "wine/exception.h" |
| #include "wine/debug.h" |
| #include "wine/unicode.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(module); |
| |
| static WCHAR *dll_directory; /* extra path for SetDllDirectoryW */ |
| |
| static CRITICAL_SECTION dlldir_section; |
| static CRITICAL_SECTION_DEBUG critsect_debug = |
| { |
| 0, 0, &dlldir_section, |
| { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList }, |
| 0, 0, { (DWORD_PTR)(__FILE__ ": dlldir_section") } |
| }; |
| static CRITICAL_SECTION dlldir_section = { &critsect_debug, -1, 0, 0, 0, 0 }; |
| |
| |
| /**************************************************************************** |
| * GetDllDirectoryA (KERNEL32.@) |
| */ |
| DWORD WINAPI GetDllDirectoryA( DWORD buf_len, LPSTR buffer ) |
| { |
| DWORD len; |
| |
| RtlEnterCriticalSection( &dlldir_section ); |
| len = dll_directory ? FILE_name_WtoA( dll_directory, strlenW(dll_directory), NULL, 0 ) : 0; |
| if (buffer && buf_len > len) |
| { |
| if (dll_directory) FILE_name_WtoA( dll_directory, -1, buffer, buf_len ); |
| else *buffer = 0; |
| } |
| else |
| { |
| len++; /* for terminating null */ |
| if (buffer) *buffer = 0; |
| } |
| RtlLeaveCriticalSection( &dlldir_section ); |
| return len; |
| } |
| |
| |
| /**************************************************************************** |
| * GetDllDirectoryW (KERNEL32.@) |
| */ |
| DWORD WINAPI GetDllDirectoryW( DWORD buf_len, LPWSTR buffer ) |
| { |
| DWORD len; |
| |
| RtlEnterCriticalSection( &dlldir_section ); |
| len = dll_directory ? strlenW( dll_directory ) : 0; |
| if (buffer && buf_len > len) |
| { |
| if (dll_directory) memcpy( buffer, dll_directory, (len + 1) * sizeof(WCHAR) ); |
| else *buffer = 0; |
| } |
| else |
| { |
| len++; /* for terminating null */ |
| if (buffer) *buffer = 0; |
| } |
| RtlLeaveCriticalSection( &dlldir_section ); |
| return len; |
| } |
| |
| |
| /**************************************************************************** |
| * SetDllDirectoryA (KERNEL32.@) |
| */ |
| BOOL WINAPI SetDllDirectoryA( LPCSTR dir ) |
| { |
| WCHAR *dirW; |
| BOOL ret; |
| |
| if (!(dirW = FILE_name_AtoW( dir, TRUE ))) return FALSE; |
| ret = SetDllDirectoryW( dirW ); |
| HeapFree( GetProcessHeap(), 0, dirW ); |
| return ret; |
| } |
| |
| |
| /**************************************************************************** |
| * SetDllDirectoryW (KERNEL32.@) |
| */ |
| BOOL WINAPI SetDllDirectoryW( LPCWSTR dir ) |
| { |
| WCHAR *newdir = NULL; |
| |
| if (dir) |
| { |
| DWORD len = (strlenW(dir) + 1) * sizeof(WCHAR); |
| if (!(newdir = HeapAlloc( GetProcessHeap(), 0, len ))) |
| { |
| SetLastError( ERROR_NOT_ENOUGH_MEMORY ); |
| return FALSE; |
| } |
| memcpy( newdir, dir, len ); |
| } |
| |
| RtlEnterCriticalSection( &dlldir_section ); |
| HeapFree( GetProcessHeap(), 0, dll_directory ); |
| dll_directory = newdir; |
| RtlLeaveCriticalSection( &dlldir_section ); |
| return TRUE; |
| } |
| |
| |
| /**************************************************************************** |
| * DisableThreadLibraryCalls (KERNEL32.@) |
| * |
| * Inform the module loader that thread notifications are not required for a dll. |
| * |
| * PARAMS |
| * hModule [I] Module handle to skip calls for |
| * |
| * RETURNS |
| * Success: TRUE. Thread attach and detach notifications will not be sent |
| * to hModule. |
| * Failure: FALSE. Use GetLastError() to determine the cause. |
| * |
| * NOTES |
| * This is typically called from the dll entry point of a dll during process |
| * attachment, for dlls that do not need to process thread notifications. |
| */ |
| BOOL WINAPI DisableThreadLibraryCalls( HMODULE hModule ) |
| { |
| NTSTATUS nts = LdrDisableThreadCalloutsForDll( hModule ); |
| if (nts == STATUS_SUCCESS) return TRUE; |
| |
| SetLastError( RtlNtStatusToDosError( nts ) ); |
| return FALSE; |
| } |
| |
| |
| /* Check whether a file is an OS/2 or a very old Windows executable |
| * by testing on import of KERNEL. |
| * |
| * FIXME: is reading the module imports the only way of discerning |
| * old Windows binaries from OS/2 ones ? At least it seems so... |
| */ |
| static DWORD MODULE_Decide_OS2_OldWin(HANDLE hfile, const IMAGE_DOS_HEADER *mz, const IMAGE_OS2_HEADER *ne) |
| { |
| DWORD currpos = SetFilePointer( hfile, 0, NULL, SEEK_CUR); |
| DWORD ret = BINARY_OS216; |
| LPWORD modtab = NULL; |
| LPSTR nametab = NULL; |
| DWORD len; |
| int i; |
| |
| /* read modref table */ |
| if ( (SetFilePointer( hfile, mz->e_lfanew + ne->ne_modtab, NULL, SEEK_SET ) == -1) |
| || (!(modtab = HeapAlloc( GetProcessHeap(), 0, ne->ne_cmod*sizeof(WORD)))) |
| || (!(ReadFile(hfile, modtab, ne->ne_cmod*sizeof(WORD), &len, NULL))) |
| || (len != ne->ne_cmod*sizeof(WORD)) ) |
| goto broken; |
| |
| /* read imported names table */ |
| if ( (SetFilePointer( hfile, mz->e_lfanew + ne->ne_imptab, NULL, SEEK_SET ) == -1) |
| || (!(nametab = HeapAlloc( GetProcessHeap(), 0, ne->ne_enttab - ne->ne_imptab))) |
| || (!(ReadFile(hfile, nametab, ne->ne_enttab - ne->ne_imptab, &len, NULL))) |
| || (len != ne->ne_enttab - ne->ne_imptab) ) |
| goto broken; |
| |
| for (i=0; i < ne->ne_cmod; i++) |
| { |
| LPSTR module = &nametab[modtab[i]]; |
| TRACE("modref: %.*s\n", module[0], &module[1]); |
| if (!(strncmp(&module[1], "KERNEL", module[0]))) |
| { /* very old Windows file */ |
| MESSAGE("This seems to be a very old (pre-3.0) Windows executable. Expect crashes, especially if this is a real-mode binary !\n"); |
| ret = BINARY_WIN16; |
| goto good; |
| } |
| } |
| |
| broken: |
| ERR("Hmm, an error occurred. Is this binary file broken?\n"); |
| |
| good: |
| HeapFree( GetProcessHeap(), 0, modtab); |
| HeapFree( GetProcessHeap(), 0, nametab); |
| SetFilePointer( hfile, currpos, NULL, SEEK_SET); /* restore filepos */ |
| return ret; |
| } |
| |
| /*********************************************************************** |
| * MODULE_GetBinaryType |
| */ |
| DWORD MODULE_GetBinaryType( HANDLE hfile, void **res_start, void **res_end ) |
| { |
| union |
| { |
| struct |
| { |
| unsigned char magic[4]; |
| unsigned char class; |
| unsigned char data; |
| unsigned char version; |
| unsigned char ignored[9]; |
| unsigned short type; |
| unsigned short machine; |
| } elf; |
| struct |
| { |
| unsigned int magic; |
| unsigned int cputype; |
| unsigned int cpusubtype; |
| unsigned int filetype; |
| } macho; |
| IMAGE_DOS_HEADER mz; |
| } header; |
| |
| DWORD len; |
| |
| /* Seek to the start of the file and read the header information. */ |
| if (SetFilePointer( hfile, 0, NULL, SEEK_SET ) == -1) |
| return BINARY_UNKNOWN; |
| if (!ReadFile( hfile, &header, sizeof(header), &len, NULL ) || len != sizeof(header)) |
| return BINARY_UNKNOWN; |
| |
| if (!memcmp( header.elf.magic, "\177ELF", 4 )) |
| { |
| DWORD flags = (header.elf.class == 2) ? BINARY_FLAG_64BIT : 0; |
| /* FIXME: we don't bother to check byte order, architecture, etc. */ |
| switch(header.elf.type) |
| { |
| case 2: return flags | BINARY_UNIX_EXE; |
| case 3: return flags | BINARY_UNIX_LIB; |
| } |
| return BINARY_UNKNOWN; |
| } |
| |
| /* Mach-o File with Endian set to Big Endian or Little Endian */ |
| if (header.macho.magic == 0xfeedface || header.macho.magic == 0xcefaedfe) |
| { |
| DWORD flags = (header.macho.cputype >> 24) == 1 ? BINARY_FLAG_64BIT : 0; |
| switch(header.macho.filetype) |
| { |
| case 2: return flags | BINARY_UNIX_EXE; |
| case 8: return flags | BINARY_UNIX_LIB; |
| } |
| return BINARY_UNKNOWN; |
| } |
| |
| /* Not ELF, try DOS */ |
| |
| if (header.mz.e_magic == IMAGE_DOS_SIGNATURE) |
| { |
| union |
| { |
| IMAGE_OS2_HEADER os2; |
| IMAGE_NT_HEADERS32 nt; |
| } ext_header; |
| |
| /* We do have a DOS image so we will now try to seek into |
| * the file by the amount indicated by the field |
| * "Offset to extended header" and read in the |
| * "magic" field information at that location. |
| * This will tell us if there is more header information |
| * to read or not. |
| */ |
| if (SetFilePointer( hfile, header.mz.e_lfanew, NULL, SEEK_SET ) == -1) |
| return BINARY_DOS; |
| if (!ReadFile( hfile, &ext_header, sizeof(ext_header), &len, NULL ) || len < 4) |
| return BINARY_DOS; |
| |
| /* Reading the magic field succeeded so |
| * we will try to determine what type it is. |
| */ |
| if (!memcmp( &ext_header.nt.Signature, "PE\0\0", 4 )) |
| { |
| if (len >= sizeof(ext_header.nt.FileHeader)) |
| { |
| DWORD ret = BINARY_PE; |
| if (ext_header.nt.FileHeader.Characteristics & IMAGE_FILE_DLL) ret |= BINARY_FLAG_DLL; |
| if (len < sizeof(ext_header.nt)) /* clear remaining part of header if missing */ |
| memset( (char *)&ext_header.nt + len, 0, sizeof(ext_header.nt) - len ); |
| if (res_start) *res_start = (void *)ext_header.nt.OptionalHeader.ImageBase; |
| if (res_end) *res_end = (void *)(ext_header.nt.OptionalHeader.ImageBase + |
| ext_header.nt.OptionalHeader.SizeOfImage); |
| switch (ext_header.nt.OptionalHeader.Magic) |
| { |
| case IMAGE_NT_OPTIONAL_HDR32_MAGIC: |
| if (res_start) *res_start = (void *)ext_header.nt.OptionalHeader.ImageBase; |
| if (res_end) *res_end = (void *)(ext_header.nt.OptionalHeader.ImageBase + |
| ext_header.nt.OptionalHeader.SizeOfImage); |
| return ret; |
| case IMAGE_NT_OPTIONAL_HDR64_MAGIC: |
| if (res_start) *res_start = NULL; |
| if (res_end) *res_end = NULL; |
| return ret | BINARY_FLAG_64BIT; |
| } |
| } |
| return BINARY_DOS; |
| } |
| |
| if (!memcmp( &ext_header.os2.ne_magic, "NE", 2 )) |
| { |
| /* This is a Windows executable (NE) header. This can |
| * mean either a 16-bit OS/2 or a 16-bit Windows or even a |
| * DOS program (running under a DOS extender). To decide |
| * which, we'll have to read the NE header. |
| */ |
| if (len >= sizeof(ext_header.os2)) |
| { |
| DWORD flags = (ext_header.os2.ne_flags & NE_FFLAGS_LIBMODULE) ? BINARY_FLAG_DLL : 0; |
| switch ( ext_header.os2.ne_exetyp ) |
| { |
| case 1: return flags | BINARY_OS216; /* OS/2 */ |
| case 2: return flags | BINARY_WIN16; /* Windows */ |
| case 3: return flags | BINARY_DOS; /* European MS-DOS 4.x */ |
| case 4: return flags | BINARY_WIN16; /* Windows 386; FIXME: is this 32bit??? */ |
| case 5: return flags | BINARY_DOS; /* BOSS, Borland Operating System Services */ |
| /* other types, e.g. 0 is: "unknown" */ |
| default: return flags | MODULE_Decide_OS2_OldWin(hfile, &header.mz, &ext_header.os2); |
| } |
| } |
| /* Couldn't read header, so abort. */ |
| return BINARY_DOS; |
| } |
| |
| /* Unknown extended header, but this file is nonetheless DOS-executable. */ |
| return BINARY_DOS; |
| } |
| |
| return BINARY_UNKNOWN; |
| } |
| |
| /*********************************************************************** |
| * GetBinaryTypeW [KERNEL32.@] |
| * |
| * Determine whether a file is executable, and if so, what kind. |
| * |
| * PARAMS |
| * lpApplicationName [I] Path of the file to check |
| * lpBinaryType [O] Destination for the binary type |
| * |
| * RETURNS |
| * TRUE, if the file is an executable, in which case lpBinaryType is set. |
| * FALSE, if the file is not an executable or if the function fails. |
| * |
| * NOTES |
| * The type of executable is a property that determines which subsystem an |
| * executable file runs under. lpBinaryType can be set to one of the following |
| * values: |
| * SCS_32BIT_BINARY: A Win32 based application |
| * SCS_DOS_BINARY: An MS-Dos based application |
| * SCS_WOW_BINARY: A Win16 based application |
| * SCS_PIF_BINARY: A PIF file that executes an MS-Dos based app |
| * SCS_POSIX_BINARY: A POSIX based application ( Not implemented ) |
| * SCS_OS216_BINARY: A 16bit OS/2 based application |
| * |
| * To find the binary type, this function reads in the files header information. |
| * If extended header information is not present it will assume that the file |
| * is a DOS executable. If extended header information is present it will |
| * determine if the file is a 16 or 32 bit Windows executable by checking the |
| * flags in the header. |
| * |
| * ".com" and ".pif" files are only recognized by their file name extension, |
| * as per native Windows. |
| */ |
| BOOL WINAPI GetBinaryTypeW( LPCWSTR lpApplicationName, LPDWORD lpBinaryType ) |
| { |
| BOOL ret = FALSE; |
| HANDLE hfile; |
| DWORD binary_type; |
| |
| TRACE("%s\n", debugstr_w(lpApplicationName) ); |
| |
| /* Sanity check. |
| */ |
| if ( lpApplicationName == NULL || lpBinaryType == NULL ) |
| return FALSE; |
| |
| /* Open the file indicated by lpApplicationName for reading. |
| */ |
| hfile = CreateFileW( lpApplicationName, GENERIC_READ, FILE_SHARE_READ, |
| NULL, OPEN_EXISTING, 0, 0 ); |
| if ( hfile == INVALID_HANDLE_VALUE ) |
| return FALSE; |
| |
| /* Check binary type |
| */ |
| binary_type = MODULE_GetBinaryType( hfile, NULL, NULL ); |
| switch (binary_type & BINARY_TYPE_MASK) |
| { |
| case BINARY_UNKNOWN: |
| { |
| static const WCHAR comW[] = { '.','C','O','M',0 }; |
| static const WCHAR pifW[] = { '.','P','I','F',0 }; |
| const WCHAR *ptr; |
| |
| /* try to determine from file name */ |
| ptr = strrchrW( lpApplicationName, '.' ); |
| if (!ptr) break; |
| if (!strcmpiW( ptr, comW )) |
| { |
| *lpBinaryType = SCS_DOS_BINARY; |
| ret = TRUE; |
| } |
| else if (!strcmpiW( ptr, pifW )) |
| { |
| *lpBinaryType = SCS_PIF_BINARY; |
| ret = TRUE; |
| } |
| break; |
| } |
| case BINARY_PE: |
| *lpBinaryType = SCS_32BIT_BINARY; |
| ret = TRUE; |
| break; |
| case BINARY_WIN16: |
| *lpBinaryType = SCS_WOW_BINARY; |
| ret = TRUE; |
| break; |
| case BINARY_OS216: |
| *lpBinaryType = SCS_OS216_BINARY; |
| ret = TRUE; |
| break; |
| case BINARY_DOS: |
| *lpBinaryType = SCS_DOS_BINARY; |
| ret = TRUE; |
| break; |
| case BINARY_UNIX_EXE: |
| case BINARY_UNIX_LIB: |
| ret = FALSE; |
| break; |
| } |
| |
| CloseHandle( hfile ); |
| return ret; |
| } |
| |
| /*********************************************************************** |
| * GetBinaryTypeA [KERNEL32.@] |
| * GetBinaryType [KERNEL32.@] |
| * |
| * See GetBinaryTypeW. |
| */ |
| BOOL WINAPI GetBinaryTypeA( LPCSTR lpApplicationName, LPDWORD lpBinaryType ) |
| { |
| ANSI_STRING app_nameA; |
| NTSTATUS status; |
| |
| TRACE("%s\n", debugstr_a(lpApplicationName)); |
| |
| /* Sanity check. |
| */ |
| if ( lpApplicationName == NULL || lpBinaryType == NULL ) |
| return FALSE; |
| |
| RtlInitAnsiString(&app_nameA, lpApplicationName); |
| status = RtlAnsiStringToUnicodeString(&NtCurrentTeb()->StaticUnicodeString, |
| &app_nameA, FALSE); |
| if (!status) |
| return GetBinaryTypeW(NtCurrentTeb()->StaticUnicodeString.Buffer, lpBinaryType); |
| |
| SetLastError(RtlNtStatusToDosError(status)); |
| return FALSE; |
| } |
| |
| /*********************************************************************** |
| * GetModuleHandleExA (KERNEL32.@) |
| */ |
| BOOL WINAPI GetModuleHandleExA( DWORD flags, LPCSTR name, HMODULE *module ) |
| { |
| WCHAR *nameW; |
| |
| if (!name || (flags & GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS)) |
| return GetModuleHandleExW( flags, (LPCWSTR)name, module ); |
| |
| if (!(nameW = FILE_name_AtoW( name, FALSE ))) return FALSE; |
| return GetModuleHandleExW( flags, nameW, module ); |
| } |
| |
| /*********************************************************************** |
| * GetModuleHandleExW (KERNEL32.@) |
| */ |
| BOOL WINAPI GetModuleHandleExW( DWORD flags, LPCWSTR name, HMODULE *module ) |
| { |
| NTSTATUS status = STATUS_SUCCESS; |
| HMODULE ret; |
| ULONG magic; |
| |
| /* if we are messing with the refcount, grab the loader lock */ |
| if ((flags & GET_MODULE_HANDLE_EX_FLAG_PIN) || |
| !(flags & GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT)) |
| LdrLockLoaderLock( 0, NULL, &magic ); |
| |
| if (!name) |
| { |
| ret = NtCurrentTeb()->Peb->ImageBaseAddress; |
| } |
| else if (flags & GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS) |
| { |
| void *dummy; |
| if (!(ret = RtlPcToFileHeader( (void *)name, &dummy ))) status = STATUS_DLL_NOT_FOUND; |
| } |
| else |
| { |
| UNICODE_STRING wstr; |
| RtlInitUnicodeString( &wstr, name ); |
| status = LdrGetDllHandle( NULL, 0, &wstr, &ret ); |
| } |
| |
| if (status == STATUS_SUCCESS) |
| { |
| if (flags & GET_MODULE_HANDLE_EX_FLAG_PIN) |
| FIXME( "should pin refcount for %p\n", ret ); |
| else if (!(flags & GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT)) |
| LdrAddRefDll( 0, ret ); |
| } |
| else SetLastError( RtlNtStatusToDosError( status ) ); |
| |
| if ((flags & GET_MODULE_HANDLE_EX_FLAG_PIN) || |
| !(flags & GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT)) |
| LdrUnlockLoaderLock( 0, magic ); |
| |
| if (module) *module = ret; |
| return (status == STATUS_SUCCESS); |
| } |
| |
| /*********************************************************************** |
| * GetModuleHandleA (KERNEL32.@) |
| * GetModuleHandle32 (KERNEL.488) |
| * |
| * Get the handle of a dll loaded into the process address space. |
| * |
| * PARAMS |
| * module [I] Name of the dll |
| * |
| * RETURNS |
| * Success: A handle to the loaded dll. |
| * Failure: A NULL handle. Use GetLastError() to determine the cause. |
| */ |
| HMODULE WINAPI GetModuleHandleA(LPCSTR module) |
| { |
| HMODULE ret; |
| |
| if (!GetModuleHandleExA( GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT, module, &ret )) ret = 0; |
| return ret; |
| } |
| |
| /*********************************************************************** |
| * GetModuleHandleW (KERNEL32.@) |
| * |
| * Unicode version of GetModuleHandleA. |
| */ |
| HMODULE WINAPI GetModuleHandleW(LPCWSTR module) |
| { |
| HMODULE ret; |
| |
| if (!GetModuleHandleExW( GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT, module, &ret )) ret = 0; |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * GetModuleFileNameA (KERNEL32.@) |
| * GetModuleFileName32 (KERNEL.487) |
| * |
| * Get the file name of a loaded module from its handle. |
| * |
| * RETURNS |
| * Success: The length of the file name, excluding the terminating NUL. |
| * Failure: 0. Use GetLastError() to determine the cause. |
| * |
| * NOTES |
| * This function always returns the long path of hModule (as opposed to |
| * GetModuleFileName16() which returns short paths when the modules version |
| * field is < 4.0). |
| * The function doesn't write a terminating '\0' if the buffer is too |
| * small. |
| */ |
| DWORD WINAPI GetModuleFileNameA( |
| HMODULE hModule, /* [in] Module handle (32 bit) */ |
| LPSTR lpFileName, /* [out] Destination for file name */ |
| DWORD size ) /* [in] Size of lpFileName in characters */ |
| { |
| LPWSTR filenameW = HeapAlloc( GetProcessHeap(), 0, size * sizeof(WCHAR) ); |
| DWORD len; |
| |
| if (!filenameW) |
| { |
| SetLastError( ERROR_NOT_ENOUGH_MEMORY ); |
| return 0; |
| } |
| if ((len = GetModuleFileNameW( hModule, filenameW, size ))) |
| { |
| len = FILE_name_WtoA( filenameW, len, lpFileName, size ); |
| if (len < size) |
| lpFileName[len] = '\0'; |
| else |
| SetLastError( ERROR_INSUFFICIENT_BUFFER ); |
| } |
| HeapFree( GetProcessHeap(), 0, filenameW ); |
| return len; |
| } |
| |
| /*********************************************************************** |
| * GetModuleFileNameW (KERNEL32.@) |
| * |
| * Unicode version of GetModuleFileNameA. |
| */ |
| DWORD WINAPI GetModuleFileNameW( HMODULE hModule, LPWSTR lpFileName, DWORD size ) |
| { |
| ULONG magic, len = 0; |
| LDR_MODULE *pldr; |
| NTSTATUS nts; |
| WIN16_SUBSYSTEM_TIB *win16_tib; |
| |
| if (!hModule && ((win16_tib = NtCurrentTeb()->Tib.SubSystemTib)) && win16_tib->exe_name) |
| { |
| len = min(size, win16_tib->exe_name->Length / sizeof(WCHAR)); |
| memcpy( lpFileName, win16_tib->exe_name->Buffer, len * sizeof(WCHAR) ); |
| if (len < size) lpFileName[len] = '\0'; |
| goto done; |
| } |
| |
| LdrLockLoaderLock( 0, NULL, &magic ); |
| |
| if (!hModule) hModule = NtCurrentTeb()->Peb->ImageBaseAddress; |
| nts = LdrFindEntryForAddress( hModule, &pldr ); |
| if (nts == STATUS_SUCCESS) |
| { |
| len = min(size, pldr->FullDllName.Length / sizeof(WCHAR)); |
| memcpy(lpFileName, pldr->FullDllName.Buffer, len * sizeof(WCHAR)); |
| if (len < size) |
| lpFileName[len] = '\0'; |
| else |
| SetLastError( ERROR_INSUFFICIENT_BUFFER ); |
| } |
| else SetLastError( RtlNtStatusToDosError( nts ) ); |
| |
| LdrUnlockLoaderLock( 0, magic ); |
| done: |
| TRACE( "%s\n", debugstr_wn(lpFileName, len) ); |
| return len; |
| } |
| |
| |
| /*********************************************************************** |
| * get_dll_system_path |
| */ |
| static const WCHAR *get_dll_system_path(void) |
| { |
| static WCHAR *cached_path; |
| |
| if (!cached_path) |
| { |
| WCHAR *p, *path; |
| int len = 3; |
| |
| len += 2 * GetSystemDirectoryW( NULL, 0 ); |
| len += GetWindowsDirectoryW( NULL, 0 ); |
| p = path = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) ); |
| *p++ = '.'; |
| *p++ = ';'; |
| GetSystemDirectoryW( p, path + len - p); |
| p += strlenW(p); |
| /* if system directory ends in "32" add 16-bit version too */ |
| if (p[-2] == '3' && p[-1] == '2') |
| { |
| *p++ = ';'; |
| GetSystemDirectoryW( p, path + len - p); |
| p += strlenW(p) - 2; |
| } |
| *p++ = ';'; |
| GetWindowsDirectoryW( p, path + len - p); |
| cached_path = path; |
| } |
| return cached_path; |
| } |
| |
| /****************************************************************** |
| * get_module_path_end |
| * |
| * Returns the end of the directory component of the module path. |
| */ |
| static inline const WCHAR *get_module_path_end(const WCHAR *module) |
| { |
| const WCHAR *p; |
| const WCHAR *mod_end = module; |
| if (!module) return mod_end; |
| |
| if ((p = strrchrW( mod_end, '\\' ))) mod_end = p; |
| if ((p = strrchrW( mod_end, '/' ))) mod_end = p; |
| if (mod_end == module + 2 && module[1] == ':') mod_end++; |
| if (mod_end == module && module[0] && module[1] == ':') mod_end += 2; |
| |
| return mod_end; |
| } |
| |
| /****************************************************************** |
| * MODULE_get_dll_load_path |
| * |
| * Compute the load path to use for a given dll. |
| * Returned pointer must be freed by caller. |
| */ |
| WCHAR *MODULE_get_dll_load_path( LPCWSTR module ) |
| { |
| static const WCHAR pathW[] = {'P','A','T','H',0}; |
| |
| const WCHAR *system_path = get_dll_system_path(); |
| const WCHAR *mod_end = NULL; |
| UNICODE_STRING name, value; |
| WCHAR *p, *ret; |
| int len = 0, path_len = 0; |
| |
| /* adjust length for module name */ |
| |
| if (module) |
| mod_end = get_module_path_end( module ); |
| /* if module is NULL or doesn't contain a path, fall back to directory |
| * process was loaded from */ |
| if (module == mod_end) |
| { |
| module = NtCurrentTeb()->Peb->ProcessParameters->ImagePathName.Buffer; |
| mod_end = get_module_path_end( module ); |
| } |
| len += (mod_end - module) + 1; |
| |
| len += strlenW( system_path ) + 2; |
| |
| /* get the PATH variable */ |
| |
| RtlInitUnicodeString( &name, pathW ); |
| value.Length = 0; |
| value.MaximumLength = 0; |
| value.Buffer = NULL; |
| if (RtlQueryEnvironmentVariable_U( NULL, &name, &value ) == STATUS_BUFFER_TOO_SMALL) |
| path_len = value.Length; |
| |
| RtlEnterCriticalSection( &dlldir_section ); |
| if (dll_directory) len += strlenW(dll_directory) + 1; |
| if ((p = ret = HeapAlloc( GetProcessHeap(), 0, path_len + len * sizeof(WCHAR) ))) |
| { |
| if (module) |
| { |
| memcpy( ret, module, (mod_end - module) * sizeof(WCHAR) ); |
| p += (mod_end - module); |
| *p++ = ';'; |
| } |
| if (dll_directory) |
| { |
| strcpyW( p, dll_directory ); |
| p += strlenW(p); |
| *p++ = ';'; |
| } |
| } |
| RtlLeaveCriticalSection( &dlldir_section ); |
| if (!ret) return NULL; |
| |
| strcpyW( p, system_path ); |
| p += strlenW(p); |
| *p++ = ';'; |
| value.Buffer = p; |
| value.MaximumLength = path_len; |
| |
| while (RtlQueryEnvironmentVariable_U( NULL, &name, &value ) == STATUS_BUFFER_TOO_SMALL) |
| { |
| WCHAR *new_ptr; |
| |
| /* grow the buffer and retry */ |
| path_len = value.Length; |
| if (!(new_ptr = HeapReAlloc( GetProcessHeap(), 0, ret, path_len + len * sizeof(WCHAR) ))) |
| { |
| HeapFree( GetProcessHeap(), 0, ret ); |
| return NULL; |
| } |
| value.Buffer = new_ptr + (value.Buffer - ret); |
| value.MaximumLength = path_len; |
| ret = new_ptr; |
| } |
| value.Buffer[value.Length / sizeof(WCHAR)] = 0; |
| return ret; |
| } |
| |
| |
| /****************************************************************** |
| * load_library_as_datafile |
| */ |
| static BOOL load_library_as_datafile( LPCWSTR name, HMODULE* hmod) |
| { |
| static const WCHAR dotDLL[] = {'.','d','l','l',0}; |
| |
| WCHAR filenameW[MAX_PATH]; |
| HANDLE hFile = INVALID_HANDLE_VALUE; |
| HANDLE mapping; |
| HMODULE module; |
| |
| *hmod = 0; |
| |
| if (SearchPathW( NULL, name, dotDLL, sizeof(filenameW) / sizeof(filenameW[0]), |
| filenameW, NULL )) |
| { |
| hFile = CreateFileW( filenameW, GENERIC_READ, FILE_SHARE_READ, |
| NULL, OPEN_EXISTING, 0, 0 ); |
| } |
| if (hFile == INVALID_HANDLE_VALUE) return FALSE; |
| |
| mapping = CreateFileMappingW( hFile, NULL, PAGE_READONLY, 0, 0, NULL ); |
| CloseHandle( hFile ); |
| if (!mapping) return FALSE; |
| |
| module = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 ); |
| CloseHandle( mapping ); |
| if (!module) return FALSE; |
| |
| /* make sure it's a valid PE file */ |
| if (!RtlImageNtHeader(module)) |
| { |
| UnmapViewOfFile( module ); |
| return FALSE; |
| } |
| *hmod = (HMODULE)((char *)module + 1); /* set low bit of handle to indicate datafile module */ |
| return TRUE; |
| } |
| |
| |
| /****************************************************************** |
| * load_library |
| * |
| * Helper for LoadLibraryExA/W. |
| */ |
| static HMODULE load_library( const UNICODE_STRING *libname, DWORD flags ) |
| { |
| NTSTATUS nts; |
| HMODULE hModule; |
| WCHAR *load_path; |
| |
| load_path = MODULE_get_dll_load_path( flags & LOAD_WITH_ALTERED_SEARCH_PATH ? libname->Buffer : NULL ); |
| |
| if (flags & LOAD_LIBRARY_AS_DATAFILE) |
| { |
| ULONG magic; |
| |
| LdrLockLoaderLock( 0, NULL, &magic ); |
| if (!(nts = LdrGetDllHandle( load_path, flags, libname, &hModule ))) |
| { |
| LdrAddRefDll( 0, hModule ); |
| LdrUnlockLoaderLock( 0, magic ); |
| goto done; |
| } |
| LdrUnlockLoaderLock( 0, magic ); |
| |
| /* The method in load_library_as_datafile allows searching for the |
| * 'native' libraries only |
| */ |
| if (load_library_as_datafile( libname->Buffer, &hModule )) goto done; |
| flags |= DONT_RESOLVE_DLL_REFERENCES; /* Just in case */ |
| /* Fallback to normal behaviour */ |
| } |
| |
| nts = LdrLoadDll( load_path, flags, libname, &hModule ); |
| if (nts != STATUS_SUCCESS) |
| { |
| hModule = 0; |
| SetLastError( RtlNtStatusToDosError( nts ) ); |
| } |
| done: |
| HeapFree( GetProcessHeap(), 0, load_path ); |
| return hModule; |
| } |
| |
| |
| /****************************************************************** |
| * LoadLibraryExA (KERNEL32.@) |
| * |
| * Load a dll file into the process address space. |
| * |
| * PARAMS |
| * libname [I] Name of the file to load |
| * hfile [I] Reserved, must be 0. |
| * flags [I] Flags for loading the dll |
| * |
| * RETURNS |
| * Success: A handle to the loaded dll. |
| * Failure: A NULL handle. Use GetLastError() to determine the cause. |
| * |
| * NOTES |
| * The HFILE parameter is not used and marked reserved in the SDK. I can |
| * only guess that it should force a file to be mapped, but I rather |
| * ignore the parameter because it would be extremely difficult to |
| * integrate this with different types of module representations. |
| */ |
| HMODULE WINAPI LoadLibraryExA(LPCSTR libname, HANDLE hfile, DWORD flags) |
| { |
| WCHAR *libnameW; |
| |
| if (!(libnameW = FILE_name_AtoW( libname, FALSE ))) return 0; |
| return LoadLibraryExW( libnameW, hfile, flags ); |
| } |
| |
| /*********************************************************************** |
| * LoadLibraryExW (KERNEL32.@) |
| * |
| * Unicode version of LoadLibraryExA. |
| */ |
| HMODULE WINAPI LoadLibraryExW(LPCWSTR libnameW, HANDLE hfile, DWORD flags) |
| { |
| UNICODE_STRING wstr; |
| HMODULE res; |
| |
| if (!libnameW) |
| { |
| SetLastError(ERROR_INVALID_PARAMETER); |
| return 0; |
| } |
| RtlInitUnicodeString( &wstr, libnameW ); |
| if (wstr.Buffer[wstr.Length/sizeof(WCHAR) - 1] != ' ') |
| return load_library( &wstr, flags ); |
| |
| /* Library name has trailing spaces */ |
| RtlCreateUnicodeString( &wstr, libnameW ); |
| while (wstr.Length > sizeof(WCHAR) && |
| wstr.Buffer[wstr.Length/sizeof(WCHAR) - 1] == ' ') |
| { |
| wstr.Length -= sizeof(WCHAR); |
| } |
| wstr.Buffer[wstr.Length/sizeof(WCHAR)] = '\0'; |
| res = load_library( &wstr, flags ); |
| RtlFreeUnicodeString( &wstr ); |
| return res; |
| } |
| |
| /*********************************************************************** |
| * LoadLibraryA (KERNEL32.@) |
| * |
| * Load a dll file into the process address space. |
| * |
| * PARAMS |
| * libname [I] Name of the file to load |
| * |
| * RETURNS |
| * Success: A handle to the loaded dll. |
| * Failure: A NULL handle. Use GetLastError() to determine the cause. |
| * |
| * NOTES |
| * See LoadLibraryExA(). |
| */ |
| HMODULE WINAPI LoadLibraryA(LPCSTR libname) |
| { |
| return LoadLibraryExA(libname, 0, 0); |
| } |
| |
| /*********************************************************************** |
| * LoadLibraryW (KERNEL32.@) |
| * |
| * Unicode version of LoadLibraryA. |
| */ |
| HMODULE WINAPI LoadLibraryW(LPCWSTR libnameW) |
| { |
| return LoadLibraryExW(libnameW, 0, 0); |
| } |
| |
| /*********************************************************************** |
| * FreeLibrary (KERNEL32.@) |
| * FreeLibrary32 (KERNEL.486) |
| * |
| * Free a dll loaded into the process address space. |
| * |
| * PARAMS |
| * hLibModule [I] Handle to the dll returned by LoadLibraryA(). |
| * |
| * RETURNS |
| * Success: TRUE. The dll is removed if it is not still in use. |
| * Failure: FALSE. Use GetLastError() to determine the cause. |
| */ |
| BOOL WINAPI FreeLibrary(HINSTANCE hLibModule) |
| { |
| BOOL retv = FALSE; |
| NTSTATUS nts; |
| |
| if (!hLibModule) |
| { |
| SetLastError( ERROR_INVALID_HANDLE ); |
| return FALSE; |
| } |
| |
| if ((ULONG_PTR)hLibModule & 1) |
| { |
| /* this is a LOAD_LIBRARY_AS_DATAFILE module */ |
| char *ptr = (char *)hLibModule - 1; |
| UnmapViewOfFile( ptr ); |
| return TRUE; |
| } |
| |
| if ((nts = LdrUnloadDll( hLibModule )) == STATUS_SUCCESS) retv = TRUE; |
| else SetLastError( RtlNtStatusToDosError( nts ) ); |
| |
| return retv; |
| } |
| |
| /*********************************************************************** |
| * GetProcAddress (KERNEL32.@) |
| * |
| * Find the address of an exported symbol in a loaded dll. |
| * |
| * PARAMS |
| * hModule [I] Handle to the dll returned by LoadLibraryA(). |
| * function [I] Name of the symbol, or an integer ordinal number < 16384 |
| * |
| * RETURNS |
| * Success: A pointer to the symbol in the process address space. |
| * Failure: NULL. Use GetLastError() to determine the cause. |
| */ |
| FARPROC WINAPI GetProcAddress( HMODULE hModule, LPCSTR function ) |
| { |
| NTSTATUS nts; |
| FARPROC fp; |
| |
| if (!hModule) hModule = NtCurrentTeb()->Peb->ImageBaseAddress; |
| |
| if (HIWORD(function)) |
| { |
| ANSI_STRING str; |
| |
| RtlInitAnsiString( &str, function ); |
| nts = LdrGetProcedureAddress( hModule, &str, 0, (void**)&fp ); |
| } |
| else |
| nts = LdrGetProcedureAddress( hModule, NULL, LOWORD(function), (void**)&fp ); |
| if (nts != STATUS_SUCCESS) |
| { |
| SetLastError( RtlNtStatusToDosError( nts ) ); |
| fp = NULL; |
| } |
| return fp; |
| } |
| |
| /*********************************************************************** |
| * GetProcAddress32 (KERNEL.453) |
| * |
| * Find the address of an exported symbol in a loaded dll. |
| * |
| * PARAMS |
| * hModule [I] Handle to the dll returned by LoadLibraryA(). |
| * function [I] Name of the symbol, or an integer ordinal number < 16384 |
| * |
| * RETURNS |
| * Success: A pointer to the symbol in the process address space. |
| * Failure: NULL. Use GetLastError() to determine the cause. |
| */ |
| FARPROC WINAPI GetProcAddress32_16( HMODULE hModule, LPCSTR function ) |
| { |
| /* FIXME: we used to disable snoop when returning proc for Win16 subsystem */ |
| return GetProcAddress( hModule, function ); |
| } |
| |
| |
| /*********************************************************************** |
| * DelayLoadFailureHook (KERNEL32.@) |
| */ |
| FARPROC WINAPI DelayLoadFailureHook( LPCSTR name, LPCSTR function ) |
| { |
| ULONG_PTR args[2]; |
| |
| if ((ULONG_PTR)function >> 16) |
| ERR( "failed to delay load %s.%s\n", name, function ); |
| else |
| ERR( "failed to delay load %s.%u\n", name, LOWORD(function) ); |
| args[0] = (ULONG_PTR)name; |
| args[1] = (ULONG_PTR)function; |
| RaiseException( EXCEPTION_WINE_STUB, EH_NONCONTINUABLE, 2, args ); |
| return NULL; |
| } |
