| /* | |
| * Implementation of VERSION.DLL - Resource Access routines | |
| * | |
| * Copyright 1996,1997 Marcus Meissner | |
| * Copyright 1997 David Cuthbert | |
| * Copyright 1999 Ulrich Weigand | |
| */ | |
| #include <stdlib.h> | |
| #include <string.h> | |
| #include <sys/types.h> | |
| #include <unistd.h> | |
| #include "neexe.h" | |
| #include "module.h" | |
| #include "winver.h" | |
| #include "lzexpand.h" | |
| #include "debugtools.h" | |
| DEFAULT_DEBUG_CHANNEL(ver); | |
| /*********************************************************************** | |
| * read_xx_header [internal] | |
| */ | |
| static int read_xx_header( HFILE lzfd ) | |
| { | |
| IMAGE_DOS_HEADER mzh; | |
| char magic[3]; | |
| LZSeek( lzfd, 0, SEEK_SET ); | |
| if ( sizeof(mzh) != LZRead( lzfd, &mzh, sizeof(mzh) ) ) | |
| return 0; | |
| if ( mzh.e_magic != IMAGE_DOS_SIGNATURE ) | |
| return 0; | |
| LZSeek( lzfd, mzh.e_lfanew, SEEK_SET ); | |
| if ( 2 != LZRead( lzfd, magic, 2 ) ) | |
| return 0; | |
| LZSeek( lzfd, mzh.e_lfanew, SEEK_SET ); | |
| if ( magic[0] == 'N' && magic[1] == 'E' ) | |
| return IMAGE_OS2_SIGNATURE; | |
| if ( magic[0] == 'P' && magic[1] == 'E' ) | |
| return IMAGE_NT_SIGNATURE; | |
| magic[2] = '\0'; | |
| WARN("Can't handle %s files.\n", magic ); | |
| return 0; | |
| } | |
| /*********************************************************************** | |
| * load_ne_resource [internal] | |
| */ | |
| static BOOL find_ne_resource( HFILE lzfd, LPCSTR typeid, LPCSTR resid, | |
| DWORD *resLen, DWORD *resOff ) | |
| { | |
| IMAGE_OS2_HEADER nehd; | |
| NE_TYPEINFO *typeInfo; | |
| NE_NAMEINFO *nameInfo; | |
| DWORD nehdoffset; | |
| LPBYTE resTab; | |
| DWORD resTabSize; | |
| /* Read in NE header */ | |
| nehdoffset = LZSeek( lzfd, 0, SEEK_CUR ); | |
| if ( sizeof(nehd) != LZRead( lzfd, &nehd, sizeof(nehd) ) ) return 0; | |
| resTabSize = nehd.rname_tab_offset - nehd.resource_tab_offset; | |
| if ( !resTabSize ) | |
| { | |
| TRACE("No resources in NE dll\n" ); | |
| return FALSE; | |
| } | |
| /* Read in resource table */ | |
| resTab = HeapAlloc( GetProcessHeap(), 0, resTabSize ); | |
| if ( !resTab ) return FALSE; | |
| LZSeek( lzfd, nehd.resource_tab_offset + nehdoffset, SEEK_SET ); | |
| if ( resTabSize != LZRead( lzfd, resTab, resTabSize ) ) | |
| { | |
| HeapFree( GetProcessHeap(), 0, resTab ); | |
| return FALSE; | |
| } | |
| /* Find resource */ | |
| typeInfo = (NE_TYPEINFO *)(resTab + 2); | |
| typeInfo = NE_FindTypeSection( resTab, typeInfo, typeid ); | |
| if ( !typeInfo ) | |
| { | |
| TRACE("No typeid entry found for %p\n", typeid ); | |
| HeapFree( GetProcessHeap(), 0, resTab ); | |
| return FALSE; | |
| } | |
| nameInfo = NE_FindResourceFromType( resTab, typeInfo, resid ); | |
| if ( !nameInfo ) | |
| { | |
| TRACE("No resid entry found for %p\n", typeid ); | |
| HeapFree( GetProcessHeap(), 0, resTab ); | |
| return FALSE; | |
| } | |
| /* Return resource data */ | |
| if ( resLen ) *resLen = nameInfo->length << *(WORD *)resTab; | |
| if ( resOff ) *resOff = nameInfo->offset << *(WORD *)resTab; | |
| HeapFree( GetProcessHeap(), 0, resTab ); | |
| return TRUE; | |
| } | |
| /*********************************************************************** | |
| * load_pe_resource [internal] | |
| */ | |
| static BOOL find_pe_resource( HFILE lzfd, LPCSTR typeid, LPCSTR resid, | |
| DWORD *resLen, DWORD *resOff ) | |
| { | |
| IMAGE_NT_HEADERS pehd; | |
| DWORD pehdoffset; | |
| PIMAGE_DATA_DIRECTORY resDataDir; | |
| PIMAGE_SECTION_HEADER sections; | |
| LPBYTE resSection; | |
| DWORD resSectionSize; | |
| DWORD resDir; | |
| PIMAGE_RESOURCE_DIRECTORY resPtr; | |
| PIMAGE_RESOURCE_DATA_ENTRY resData; | |
| int i, nSections; | |
| /* Read in PE header */ | |
| pehdoffset = LZSeek( lzfd, 0, SEEK_CUR ); | |
| if ( sizeof(pehd) != LZRead( lzfd, &pehd, sizeof(pehd) ) ) return 0; | |
| resDataDir = pehd.OptionalHeader.DataDirectory+IMAGE_FILE_RESOURCE_DIRECTORY; | |
| if ( !resDataDir->Size ) | |
| { | |
| TRACE("No resources in PE dll\n" ); | |
| return FALSE; | |
| } | |
| /* Read in section table */ | |
| nSections = pehd.FileHeader.NumberOfSections; | |
| sections = HeapAlloc( GetProcessHeap(), 0, | |
| nSections * sizeof(IMAGE_SECTION_HEADER) ); | |
| if ( !sections ) return FALSE; | |
| LZSeek( lzfd, pehdoffset + | |
| sizeof(DWORD) + /* Signature */ | |
| sizeof(IMAGE_FILE_HEADER) + | |
| pehd.FileHeader.SizeOfOptionalHeader, SEEK_SET ); | |
| if ( nSections * sizeof(IMAGE_SECTION_HEADER) != | |
| LZRead( lzfd, sections, nSections * sizeof(IMAGE_SECTION_HEADER) ) ) | |
| { | |
| HeapFree( GetProcessHeap(), 0, sections ); | |
| return FALSE; | |
| } | |
| /* Find resource section */ | |
| for ( i = 0; i < nSections; i++ ) | |
| if ( resDataDir->VirtualAddress >= sections[i].VirtualAddress | |
| && resDataDir->VirtualAddress < sections[i].VirtualAddress + | |
| sections[i].SizeOfRawData ) | |
| break; | |
| if ( i == nSections ) | |
| { | |
| HeapFree( GetProcessHeap(), 0, sections ); | |
| TRACE("Couldn't find resource section\n" ); | |
| return FALSE; | |
| } | |
| /* Read in resource section */ | |
| resSectionSize = sections[i].SizeOfRawData; | |
| resSection = HeapAlloc( GetProcessHeap(), 0, resSectionSize ); | |
| if ( !resSection ) | |
| { | |
| HeapFree( GetProcessHeap(), 0, sections ); | |
| return FALSE; | |
| } | |
| LZSeek( lzfd, sections[i].PointerToRawData, SEEK_SET ); | |
| if ( resSectionSize != LZRead( lzfd, resSection, resSectionSize ) ) | |
| { | |
| HeapFree( GetProcessHeap(), 0, resSection ); | |
| HeapFree( GetProcessHeap(), 0, sections ); | |
| return FALSE; | |
| } | |
| /* Find resource */ | |
| resDir = (DWORD)resSection + | |
| (resDataDir->VirtualAddress - sections[i].VirtualAddress); | |
| resPtr = (PIMAGE_RESOURCE_DIRECTORY)resDir; | |
| resPtr = GetResDirEntryA( resPtr, typeid, resDir, FALSE ); | |
| if ( !resPtr ) | |
| { | |
| TRACE("No typeid entry found for %p\n", typeid ); | |
| HeapFree( GetProcessHeap(), 0, resSection ); | |
| HeapFree( GetProcessHeap(), 0, sections ); | |
| return FALSE; | |
| } | |
| resPtr = GetResDirEntryA( resPtr, resid, resDir, FALSE ); | |
| if ( !resPtr ) | |
| { | |
| TRACE("No resid entry found for %p\n", resid ); | |
| HeapFree( GetProcessHeap(), 0, resSection ); | |
| HeapFree( GetProcessHeap(), 0, sections ); | |
| return FALSE; | |
| } | |
| resPtr = GetResDirEntryA( resPtr, 0, resDir, TRUE ); | |
| if ( !resPtr ) | |
| { | |
| TRACE("No default language entry found for %p\n", resid ); | |
| HeapFree( GetProcessHeap(), 0, resSection ); | |
| HeapFree( GetProcessHeap(), 0, sections ); | |
| return FALSE; | |
| } | |
| /* Find resource data section */ | |
| resData = (PIMAGE_RESOURCE_DATA_ENTRY)resPtr; | |
| for ( i = 0; i < nSections; i++ ) | |
| if ( resData->OffsetToData >= sections[i].VirtualAddress | |
| && resData->OffsetToData < sections[i].VirtualAddress + | |
| sections[i].SizeOfRawData ) | |
| break; | |
| if ( i == nSections ) | |
| { | |
| TRACE("Couldn't find resource data section\n" ); | |
| HeapFree( GetProcessHeap(), 0, resSection ); | |
| HeapFree( GetProcessHeap(), 0, sections ); | |
| return FALSE; | |
| } | |
| /* Return resource data */ | |
| if ( resLen ) *resLen = resData->Size; | |
| if ( resOff ) *resOff = resData->OffsetToData - sections[i].VirtualAddress | |
| + sections[i].PointerToRawData; | |
| HeapFree( GetProcessHeap(), 0, resSection ); | |
| HeapFree( GetProcessHeap(), 0, sections ); | |
| return TRUE; | |
| } | |
| /*********************************************************************** | |
| * GetFileResourceSize32 [internal] | |
| */ | |
| DWORD WINAPI GetFileResourceSize( LPCSTR lpszFileName, | |
| LPCSTR lpszResType, LPCSTR lpszResId, | |
| LPDWORD lpdwFileOffset ) | |
| { | |
| BOOL retv = FALSE; | |
| HFILE lzfd; | |
| OFSTRUCT ofs; | |
| DWORD reslen; | |
| TRACE("(%s,type=0x%lx,id=0x%lx,off=%p)\n", | |
| debugstr_a(lpszFileName), (LONG)lpszResType, (LONG)lpszResId, | |
| lpszResId ); | |
| lzfd = LZOpenFileA( lpszFileName, &ofs, OF_READ ); | |
| if ( !lzfd ) return 0; | |
| switch ( read_xx_header( lzfd ) ) | |
| { | |
| case IMAGE_OS2_SIGNATURE: | |
| retv = find_ne_resource( lzfd, lpszResType, lpszResId, | |
| &reslen, lpdwFileOffset ); | |
| break; | |
| case IMAGE_NT_SIGNATURE: | |
| retv = find_pe_resource( lzfd, lpszResType, lpszResId, | |
| &reslen, lpdwFileOffset ); | |
| break; | |
| } | |
| LZClose( lzfd ); | |
| return retv? reslen : 0; | |
| } | |
| /*********************************************************************** | |
| * GetFileResource32 [internal] | |
| */ | |
| DWORD WINAPI GetFileResource( LPCSTR lpszFileName, | |
| LPCSTR lpszResType, LPCSTR lpszResId, | |
| DWORD dwFileOffset, | |
| DWORD dwResLen, LPVOID lpvData ) | |
| { | |
| BOOL retv = FALSE; | |
| HFILE lzfd; | |
| OFSTRUCT ofs; | |
| DWORD reslen = dwResLen; | |
| TRACE("(%s,type=0x%lx,id=0x%lx,off=%ld,len=%ld,data=%p)\n", | |
| debugstr_a(lpszFileName), (LONG)lpszResType, (LONG)lpszResId, | |
| dwFileOffset, dwResLen, lpvData ); | |
| lzfd = LZOpenFileA( lpszFileName, &ofs, OF_READ ); | |
| if ( lzfd == 0 ) return 0; | |
| if ( !dwFileOffset ) | |
| { | |
| switch ( read_xx_header( lzfd ) ) | |
| { | |
| case IMAGE_OS2_SIGNATURE: | |
| retv = find_ne_resource( lzfd, lpszResType, lpszResId, | |
| &reslen, &dwFileOffset ); | |
| break; | |
| case IMAGE_NT_SIGNATURE: | |
| retv = find_pe_resource( lzfd, lpszResType, lpszResId, | |
| &reslen, &dwFileOffset ); | |
| break; | |
| } | |
| if ( !retv ) | |
| { | |
| LZClose( lzfd ); | |
| return 0; | |
| } | |
| } | |
| LZSeek( lzfd, dwFileOffset, SEEK_SET ); | |
| reslen = LZRead( lzfd, lpvData, min( reslen, dwResLen ) ); | |
| LZClose( lzfd ); | |
| return reslen; | |
| } | |