mirror of
git://source.winehq.org/git/wine.git
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477 lines
15 KiB
C
477 lines
15 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 "wine/unicode.h"
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#include "wine/winbase16.h"
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#include "wine/winuser16.h"
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#include "winver.h"
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#include "wine/debug.h"
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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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* find_entry_by_name
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*
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* Find an entry by name 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_name( const IMAGE_RESOURCE_DIRECTORY *dir,
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LPCSTR name, const void *root )
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{
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const IMAGE_RESOURCE_DIRECTORY *ret = NULL;
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LPWSTR nameW;
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DWORD namelen;
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if (!HIWORD(name)) return find_entry_by_id( dir, LOWORD(name), root );
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if (name[0] == '#')
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{
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return find_entry_by_id( dir, atoi(name+1), root );
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}
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namelen = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 );
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if ((nameW = HeapAlloc( GetProcessHeap(), 0, namelen * sizeof(WCHAR) )))
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{
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const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
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const IMAGE_RESOURCE_DIR_STRING_U *str;
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int min, max, res, pos;
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MultiByteToWideChar( CP_ACP, 0, name, -1, nameW, namelen );
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namelen--; /* remove terminating null */
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entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
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min = 0;
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max = dir->NumberOfNamedEntries - 1;
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while (min <= max)
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{
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pos = (min + max) / 2;
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str = (const IMAGE_RESOURCE_DIR_STRING_U *)((const char *)root + entry[pos].u1.s1.NameOffset);
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res = strncmpiW( nameW, str->NameString, str->Length );
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if (!res && namelen == str->Length)
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{
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ret = (const IMAGE_RESOURCE_DIRECTORY *)((const char *)root + entry[pos].u2.s3.OffsetToDirectory);
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break;
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}
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if (res < 0) max = pos - 1;
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else min = pos + 1;
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}
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HeapFree( GetProcessHeap(), 0, nameW );
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}
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return ret;
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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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return 0;
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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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* load_ne_resource [internal]
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*/
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static BOOL find_ne_resource( HFILE lzfd, LPCSTR typeid, LPCSTR resid,
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DWORD *resLen, DWORD *resOff )
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{
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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, 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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if (HIWORD(typeid) != 0) /* named type */
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{
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BYTE len = strlen( typeid );
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while (typeInfo->type_id)
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{
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if (!(typeInfo->type_id & 0x8000))
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{
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BYTE *p = resTab + typeInfo->type_id;
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if ((*p == len) && !strncasecmp( p+1, typeid, len )) goto found_type;
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}
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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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}
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else /* numeric type id */
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{
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WORD id = LOWORD(typeid) | 0x8000;
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while (typeInfo->type_id)
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{
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if (typeInfo->type_id == id) 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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}
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TRACE("No typeid entry found for %p\n", typeid );
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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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if (HIWORD(resid) != 0) /* named resource */
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{
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BYTE len = strlen( resid );
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for (count = typeInfo->count; count > 0; count--, nameInfo++)
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{
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BYTE *p = resTab + nameInfo->id;
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if (nameInfo->id & 0x8000) continue;
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if ((*p == len) && !strncasecmp( p+1, resid, len )) goto found_name;
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}
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}
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else /* numeric resource id */
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{
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WORD id = LOWORD(resid) | 0x8000;
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for (count = typeInfo->count; count > 0; count--, nameInfo++)
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if (nameInfo->id == id) goto found_name;
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}
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TRACE("No resid entry found for %p\n", typeid );
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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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* load_pe_resource [internal]
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*/
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static BOOL find_pe_resource( HFILE lzfd, LPCSTR typeid, LPCSTR resid,
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DWORD *resLen, DWORD *resOff )
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{
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IMAGE_NT_HEADERS 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, 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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if ( sizeof(pehd) != LZRead( lzfd, (LPSTR)&pehd, sizeof(pehd) ) ) return 0;
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resDataDir = pehd.OptionalHeader.DataDirectory+IMAGE_FILE_RESOURCE_DIRECTORY;
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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.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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LZSeek( lzfd, pehdoffset +
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sizeof(DWORD) + /* Signature */
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sizeof(IMAGE_FILE_HEADER) +
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pehd.FileHeader.SizeOfOptionalHeader, 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, 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 = (const IMAGE_RESOURCE_DIRECTORY*)resDir;
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resPtr = find_entry_by_name( resPtr, typeid, resDir );
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if ( !resPtr )
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{
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TRACE("No typeid entry found for %p\n", typeid );
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goto done;
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}
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resPtr = find_entry_by_name( resPtr, resid, resDir );
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if ( !resPtr )
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{
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TRACE("No resid entry found for %p\n", resid );
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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 for %p\n", resid );
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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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* GetFileResourceSize [VER.2]
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*/
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DWORD WINAPI GetFileResourceSize16( LPCSTR lpszFileName, LPCSTR lpszResType,
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LPCSTR lpszResId, LPDWORD lpdwFileOffset )
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{
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BOOL retv = FALSE;
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HFILE lzfd;
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OFSTRUCT ofs;
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DWORD reslen;
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TRACE("(%s,type=0x%lx,id=0x%lx,off=%p)\n",
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debugstr_a(lpszFileName), (LONG)lpszResType, (LONG)lpszResId,
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lpszResId );
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lzfd = LZOpenFileA( (LPSTR)lpszFileName, &ofs, OF_READ );
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if ( lzfd < 0 ) return 0;
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switch ( read_xx_header( lzfd ) )
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{
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case IMAGE_OS2_SIGNATURE:
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retv = find_ne_resource( lzfd, lpszResType, lpszResId,
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&reslen, lpdwFileOffset );
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break;
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case IMAGE_NT_SIGNATURE:
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retv = find_pe_resource( lzfd, lpszResType, lpszResId,
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&reslen, lpdwFileOffset );
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break;
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}
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LZClose( lzfd );
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return retv? reslen : 0;
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}
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/*************************************************************************
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* GetFileResource [VER.3]
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*/
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DWORD WINAPI GetFileResource16( LPCSTR lpszFileName, LPCSTR lpszResType,
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LPCSTR lpszResId, DWORD dwFileOffset,
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DWORD dwResLen, LPVOID lpvData )
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{
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BOOL retv = FALSE;
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HFILE lzfd;
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OFSTRUCT ofs;
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DWORD reslen = dwResLen;
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TRACE("(%s,type=0x%lx,id=0x%lx,off=%ld,len=%ld,data=%p)\n",
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debugstr_a(lpszFileName), (LONG)lpszResType, (LONG)lpszResId,
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dwFileOffset, dwResLen, lpvData );
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lzfd = LZOpenFileA( (LPSTR)lpszFileName, &ofs, OF_READ );
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if ( lzfd < 0 ) return 0;
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if ( !dwFileOffset )
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{
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switch ( read_xx_header( lzfd ) )
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{
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case IMAGE_OS2_SIGNATURE:
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retv = find_ne_resource( lzfd, lpszResType, lpszResId,
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&reslen, &dwFileOffset );
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break;
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case IMAGE_NT_SIGNATURE:
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retv = find_pe_resource( lzfd, lpszResType, lpszResId,
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&reslen, &dwFileOffset );
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break;
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}
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if ( !retv )
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{
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LZClose( lzfd );
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return 0;
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}
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}
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LZSeek( lzfd, dwFileOffset, SEEK_SET );
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reslen = LZRead( lzfd, lpvData, min( reslen, dwResLen ) );
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LZClose( lzfd );
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return reslen;
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}
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