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https://github.com/reactos/wine.git
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364 lines
11 KiB
C
364 lines
11 KiB
C
/*
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* Implementation of VERSION.DLL - Resource Access routines
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*
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* Copyright 1996,1997 Marcus Meissner
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* Copyright 1997 David Cuthbert
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* Copyright 1999 Ulrich Weigand
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#define NONAMELESSUNION
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#define NONAMELESSSTRUCT
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#include "windef.h"
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#include "winbase.h"
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#include "lzexpand.h"
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#include "winver.h"
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#include "wine/unicode.h"
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#include "wine/debug.h"
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typedef struct
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{
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WORD offset;
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WORD length;
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WORD flags;
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WORD id;
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WORD handle;
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WORD usage;
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} NE_NAMEINFO;
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typedef struct
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{
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WORD type_id;
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WORD count;
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DWORD resloader;
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} NE_TYPEINFO;
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WINE_DEFAULT_DEBUG_CHANNEL(ver);
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/**********************************************************************
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* find_entry_by_id
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*
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* Find an entry by id in a resource directory
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* Copied from loader/pe_resource.c
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*/
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static const IMAGE_RESOURCE_DIRECTORY *find_entry_by_id( const IMAGE_RESOURCE_DIRECTORY *dir,
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WORD id, const void *root )
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{
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const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
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int min, max, pos;
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entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
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min = dir->NumberOfNamedEntries;
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max = min + dir->NumberOfIdEntries - 1;
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while (min <= max)
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{
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pos = (min + max) / 2;
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if (entry[pos].u1.s2.Id == id)
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return (const IMAGE_RESOURCE_DIRECTORY *)((const char *)root + entry[pos].u2.s3.OffsetToDirectory);
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if (entry[pos].u1.s2.Id > id) max = pos - 1;
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else min = pos + 1;
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}
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return NULL;
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}
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/**********************************************************************
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* find_entry_default
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*
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* Find a default entry in a resource directory
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* Copied from loader/pe_resource.c
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*/
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static const IMAGE_RESOURCE_DIRECTORY *find_entry_default( const IMAGE_RESOURCE_DIRECTORY *dir,
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const void *root )
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{
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const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
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entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
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return (const IMAGE_RESOURCE_DIRECTORY *)((const char *)root + entry->u2.s3.OffsetToDirectory);
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}
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/***********************************************************************
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* read_xx_header [internal]
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*/
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static int read_xx_header( HFILE lzfd )
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{
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IMAGE_DOS_HEADER mzh;
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char magic[3];
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LZSeek( lzfd, 0, SEEK_SET );
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if ( sizeof(mzh) != LZRead( lzfd, (LPSTR)&mzh, sizeof(mzh) ) )
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return 0;
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if ( mzh.e_magic != IMAGE_DOS_SIGNATURE )
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{
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if (!memcmp( &mzh, "\177ELF", 4 )) return 1; /* ELF */
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if (*(UINT *)&mzh == 0xfeedface || *(UINT *)&mzh == 0xcefaedfe) return 1; /* Mach-O */
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return 0;
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}
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LZSeek( lzfd, mzh.e_lfanew, SEEK_SET );
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if ( 2 != LZRead( lzfd, magic, 2 ) )
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return 0;
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LZSeek( lzfd, mzh.e_lfanew, SEEK_SET );
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if ( magic[0] == 'N' && magic[1] == 'E' )
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return IMAGE_OS2_SIGNATURE;
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if ( magic[0] == 'P' && magic[1] == 'E' )
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return IMAGE_NT_SIGNATURE;
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magic[2] = '\0';
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WARN("Can't handle %s files.\n", magic );
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return 0;
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}
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/***********************************************************************
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* find_ne_resource [internal]
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*/
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static BOOL find_ne_resource( HFILE lzfd, DWORD *resLen, DWORD *resOff )
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{
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const WORD typeid = VS_FILE_INFO | 0x8000;
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const WORD resid = VS_VERSION_INFO | 0x8000;
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IMAGE_OS2_HEADER nehd;
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NE_TYPEINFO *typeInfo;
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NE_NAMEINFO *nameInfo;
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DWORD nehdoffset;
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LPBYTE resTab;
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DWORD resTabSize;
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int count;
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/* Read in NE header */
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nehdoffset = LZSeek( lzfd, 0, SEEK_CUR );
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if ( sizeof(nehd) != LZRead( lzfd, (LPSTR)&nehd, sizeof(nehd) ) ) return 0;
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resTabSize = nehd.ne_restab - nehd.ne_rsrctab;
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if ( !resTabSize )
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{
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TRACE("No resources in NE dll\n" );
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return FALSE;
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}
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/* Read in resource table */
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resTab = HeapAlloc( GetProcessHeap(), 0, resTabSize );
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if ( !resTab ) return FALSE;
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LZSeek( lzfd, nehd.ne_rsrctab + nehdoffset, SEEK_SET );
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if ( resTabSize != LZRead( lzfd, (char*)resTab, resTabSize ) )
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{
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HeapFree( GetProcessHeap(), 0, resTab );
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return FALSE;
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}
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/* Find resource */
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typeInfo = (NE_TYPEINFO *)(resTab + 2);
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while (typeInfo->type_id)
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{
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if (typeInfo->type_id == typeid) goto found_type;
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typeInfo = (NE_TYPEINFO *)((char *)(typeInfo + 1) +
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typeInfo->count * sizeof(NE_NAMEINFO));
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}
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TRACE("No typeid entry found\n" );
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HeapFree( GetProcessHeap(), 0, resTab );
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return FALSE;
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found_type:
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nameInfo = (NE_NAMEINFO *)(typeInfo + 1);
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for (count = typeInfo->count; count > 0; count--, nameInfo++)
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if (nameInfo->id == resid) goto found_name;
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TRACE("No resid entry found\n" );
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HeapFree( GetProcessHeap(), 0, resTab );
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return FALSE;
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found_name:
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/* Return resource data */
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if ( resLen ) *resLen = nameInfo->length << *(WORD *)resTab;
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if ( resOff ) *resOff = nameInfo->offset << *(WORD *)resTab;
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HeapFree( GetProcessHeap(), 0, resTab );
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return TRUE;
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}
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/***********************************************************************
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* find_pe_resource [internal]
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*/
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static BOOL find_pe_resource( HFILE lzfd, DWORD *resLen, DWORD *resOff )
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{
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union
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{
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IMAGE_NT_HEADERS32 nt32;
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IMAGE_NT_HEADERS64 nt64;
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} pehd;
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DWORD pehdoffset;
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PIMAGE_DATA_DIRECTORY resDataDir;
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PIMAGE_SECTION_HEADER sections;
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LPBYTE resSection;
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DWORD resSectionSize;
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const void *resDir;
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const IMAGE_RESOURCE_DIRECTORY *resPtr;
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const IMAGE_RESOURCE_DATA_ENTRY *resData;
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int i, len, nSections;
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BOOL ret = FALSE;
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/* Read in PE header */
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pehdoffset = LZSeek( lzfd, 0, SEEK_CUR );
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len = LZRead( lzfd, (LPSTR)&pehd, sizeof(pehd) );
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if (len < sizeof(pehd.nt32.FileHeader)) return 0;
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if (len < sizeof(pehd)) memset( (char *)&pehd + len, 0, sizeof(pehd) - len );
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switch (pehd.nt32.OptionalHeader.Magic)
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{
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case IMAGE_NT_OPTIONAL_HDR32_MAGIC:
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resDataDir = pehd.nt32.OptionalHeader.DataDirectory + IMAGE_DIRECTORY_ENTRY_RESOURCE;
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break;
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case IMAGE_NT_OPTIONAL_HDR64_MAGIC:
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resDataDir = pehd.nt64.OptionalHeader.DataDirectory + IMAGE_DIRECTORY_ENTRY_RESOURCE;
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break;
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default:
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return 0;
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}
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if ( !resDataDir->Size )
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{
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TRACE("No resources in PE dll\n" );
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return FALSE;
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}
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/* Read in section table */
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nSections = pehd.nt32.FileHeader.NumberOfSections;
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sections = HeapAlloc( GetProcessHeap(), 0,
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nSections * sizeof(IMAGE_SECTION_HEADER) );
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if ( !sections ) return FALSE;
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len = FIELD_OFFSET( IMAGE_NT_HEADERS32, OptionalHeader ) + pehd.nt32.FileHeader.SizeOfOptionalHeader;
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LZSeek( lzfd, pehdoffset + len, SEEK_SET );
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if ( nSections * sizeof(IMAGE_SECTION_HEADER) !=
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LZRead( lzfd, (LPSTR)sections, nSections * sizeof(IMAGE_SECTION_HEADER) ) )
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{
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HeapFree( GetProcessHeap(), 0, sections );
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return FALSE;
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}
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/* Find resource section */
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for ( i = 0; i < nSections; i++ )
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if ( resDataDir->VirtualAddress >= sections[i].VirtualAddress
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&& resDataDir->VirtualAddress < sections[i].VirtualAddress +
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sections[i].SizeOfRawData )
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break;
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if ( i == nSections )
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{
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HeapFree( GetProcessHeap(), 0, sections );
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TRACE("Couldn't find resource section\n" );
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return FALSE;
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}
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/* Read in resource section */
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resSectionSize = sections[i].SizeOfRawData;
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resSection = HeapAlloc( GetProcessHeap(), 0, resSectionSize );
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if ( !resSection )
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{
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HeapFree( GetProcessHeap(), 0, sections );
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return FALSE;
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}
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LZSeek( lzfd, sections[i].PointerToRawData, SEEK_SET );
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if ( resSectionSize != LZRead( lzfd, (char*)resSection, resSectionSize ) ) goto done;
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/* Find resource */
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resDir = resSection + (resDataDir->VirtualAddress - sections[i].VirtualAddress);
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resPtr = resDir;
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resPtr = find_entry_by_id( resPtr, VS_FILE_INFO, resDir );
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if ( !resPtr )
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{
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TRACE("No typeid entry found\n" );
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goto done;
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}
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resPtr = find_entry_by_id( resPtr, VS_VERSION_INFO, resDir );
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if ( !resPtr )
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{
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TRACE("No resid entry found\n" );
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goto done;
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}
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resPtr = find_entry_default( resPtr, resDir );
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if ( !resPtr )
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{
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TRACE("No default language entry found\n" );
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goto done;
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}
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/* Find resource data section */
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resData = (const IMAGE_RESOURCE_DATA_ENTRY*)resPtr;
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for ( i = 0; i < nSections; i++ )
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if ( resData->OffsetToData >= sections[i].VirtualAddress
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&& resData->OffsetToData < sections[i].VirtualAddress +
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sections[i].SizeOfRawData )
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break;
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if ( i == nSections )
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{
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TRACE("Couldn't find resource data section\n" );
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goto done;
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}
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/* Return resource data */
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if ( resLen ) *resLen = resData->Size;
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if ( resOff ) *resOff = resData->OffsetToData - sections[i].VirtualAddress
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+ sections[i].PointerToRawData;
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ret = TRUE;
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done:
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HeapFree( GetProcessHeap(), 0, resSection );
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HeapFree( GetProcessHeap(), 0, sections );
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return ret;
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}
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/***********************************************************************
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* find_version_resource [internal]
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*/
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DWORD find_version_resource( HFILE lzfd, DWORD *reslen, DWORD *offset )
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{
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DWORD magic = read_xx_header( lzfd );
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switch (magic)
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{
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case IMAGE_OS2_SIGNATURE:
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if (!find_ne_resource( lzfd, reslen, offset )) magic = 0;
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break;
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case IMAGE_NT_SIGNATURE:
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if (!find_pe_resource( lzfd, reslen, offset )) magic = 0;
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break;
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}
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return magic;
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}
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