2 * Implementation of VERSION.DLL - Resource Access routines
4 * Copyright 1996,1997 Marcus Meissner
5 * Copyright 1997 David Cuthbert
6 * Copyright 1999 Ulrich Weigand
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
29 #include <sys/types.h>
34 #define NONAMELESSUNION
35 #define NONAMELESSSTRUCT
41 #include "wine/unicode.h"
42 #include "wine/winbase16.h"
44 #include "wine/debug.h"
46 WINE_DEFAULT_DEBUG_CHANNEL(ver);
49 /**********************************************************************
52 * Find an entry by id in a resource directory
53 * Copied from loader/pe_resource.c
55 static const IMAGE_RESOURCE_DIRECTORY *find_entry_by_id( const IMAGE_RESOURCE_DIRECTORY *dir,
56 WORD id, const void *root )
58 const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
61 entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
62 min = dir->NumberOfNamedEntries;
63 max = min + dir->NumberOfIdEntries - 1;
66 pos = (min + max) / 2;
67 if (entry[pos].u1.s2.Id == id)
68 return (const IMAGE_RESOURCE_DIRECTORY *)((const char *)root + entry[pos].u2.s3.OffsetToDirectory);
69 if (entry[pos].u1.s2.Id > id) max = pos - 1;
76 /**********************************************************************
79 * Find a default entry in a resource directory
80 * Copied from loader/pe_resource.c
82 static const IMAGE_RESOURCE_DIRECTORY *find_entry_default( const IMAGE_RESOURCE_DIRECTORY *dir,
85 const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
87 entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
88 return (const IMAGE_RESOURCE_DIRECTORY *)((const char *)root + entry->u2.s3.OffsetToDirectory);
92 /***********************************************************************
93 * read_xx_header [internal]
95 static int read_xx_header( HFILE lzfd )
100 LZSeek( lzfd, 0, SEEK_SET );
101 if ( sizeof(mzh) != LZRead( lzfd, (LPSTR)&mzh, sizeof(mzh) ) )
103 if ( mzh.e_magic != IMAGE_DOS_SIGNATURE )
106 LZSeek( lzfd, mzh.e_lfanew, SEEK_SET );
107 if ( 2 != LZRead( lzfd, magic, 2 ) )
110 LZSeek( lzfd, mzh.e_lfanew, SEEK_SET );
112 if ( magic[0] == 'N' && magic[1] == 'E' )
113 return IMAGE_OS2_SIGNATURE;
114 if ( magic[0] == 'P' && magic[1] == 'E' )
115 return IMAGE_NT_SIGNATURE;
118 WARN("Can't handle %s files.\n", magic );
122 /***********************************************************************
123 * find_ne_resource [internal]
125 static BOOL find_ne_resource( HFILE lzfd, DWORD *resLen, DWORD *resOff )
127 const WORD typeid = VS_FILE_INFO | 0x8000;
128 const WORD resid = VS_VERSION_INFO | 0x8000;
129 IMAGE_OS2_HEADER nehd;
130 NE_TYPEINFO *typeInfo;
131 NE_NAMEINFO *nameInfo;
137 /* Read in NE header */
138 nehdoffset = LZSeek( lzfd, 0, SEEK_CUR );
139 if ( sizeof(nehd) != LZRead( lzfd, (LPSTR)&nehd, sizeof(nehd) ) ) return 0;
141 resTabSize = nehd.ne_restab - nehd.ne_rsrctab;
144 TRACE("No resources in NE dll\n" );
148 /* Read in resource table */
149 resTab = HeapAlloc( GetProcessHeap(), 0, resTabSize );
150 if ( !resTab ) return FALSE;
152 LZSeek( lzfd, nehd.ne_rsrctab + nehdoffset, SEEK_SET );
153 if ( resTabSize != LZRead( lzfd, (char*)resTab, resTabSize ) )
155 HeapFree( GetProcessHeap(), 0, resTab );
160 typeInfo = (NE_TYPEINFO *)(resTab + 2);
161 while (typeInfo->type_id)
163 if (typeInfo->type_id == typeid) goto found_type;
164 typeInfo = (NE_TYPEINFO *)((char *)(typeInfo + 1) +
165 typeInfo->count * sizeof(NE_NAMEINFO));
167 TRACE("No typeid entry found\n" );
168 HeapFree( GetProcessHeap(), 0, resTab );
172 nameInfo = (NE_NAMEINFO *)(typeInfo + 1);
174 for (count = typeInfo->count; count > 0; count--, nameInfo++)
175 if (nameInfo->id == resid) goto found_name;
177 TRACE("No resid entry found\n" );
178 HeapFree( GetProcessHeap(), 0, resTab );
182 /* Return resource data */
183 if ( resLen ) *resLen = nameInfo->length << *(WORD *)resTab;
184 if ( resOff ) *resOff = nameInfo->offset << *(WORD *)resTab;
186 HeapFree( GetProcessHeap(), 0, resTab );
190 /***********************************************************************
191 * find_pe_resource [internal]
193 static BOOL find_pe_resource( HFILE lzfd, DWORD *resLen, DWORD *resOff )
195 IMAGE_NT_HEADERS pehd;
197 PIMAGE_DATA_DIRECTORY resDataDir;
198 PIMAGE_SECTION_HEADER sections;
200 DWORD resSectionSize;
202 const IMAGE_RESOURCE_DIRECTORY *resPtr;
203 const IMAGE_RESOURCE_DATA_ENTRY *resData;
207 /* Read in PE header */
208 pehdoffset = LZSeek( lzfd, 0, SEEK_CUR );
209 if ( sizeof(pehd) != LZRead( lzfd, (LPSTR)&pehd, sizeof(pehd) ) ) return 0;
211 resDataDir = pehd.OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_RESOURCE;
212 if ( !resDataDir->Size )
214 TRACE("No resources in PE dll\n" );
218 /* Read in section table */
219 nSections = pehd.FileHeader.NumberOfSections;
220 sections = HeapAlloc( GetProcessHeap(), 0,
221 nSections * sizeof(IMAGE_SECTION_HEADER) );
222 if ( !sections ) return FALSE;
224 LZSeek( lzfd, pehdoffset +
225 sizeof(DWORD) + /* Signature */
226 sizeof(IMAGE_FILE_HEADER) +
227 pehd.FileHeader.SizeOfOptionalHeader, SEEK_SET );
229 if ( nSections * sizeof(IMAGE_SECTION_HEADER) !=
230 LZRead( lzfd, (LPSTR)sections, nSections * sizeof(IMAGE_SECTION_HEADER) ) )
232 HeapFree( GetProcessHeap(), 0, sections );
236 /* Find resource section */
237 for ( i = 0; i < nSections; i++ )
238 if ( resDataDir->VirtualAddress >= sections[i].VirtualAddress
239 && resDataDir->VirtualAddress < sections[i].VirtualAddress +
240 sections[i].SizeOfRawData )
243 if ( i == nSections )
245 HeapFree( GetProcessHeap(), 0, sections );
246 TRACE("Couldn't find resource section\n" );
250 /* Read in resource section */
251 resSectionSize = sections[i].SizeOfRawData;
252 resSection = HeapAlloc( GetProcessHeap(), 0, resSectionSize );
255 HeapFree( GetProcessHeap(), 0, sections );
259 LZSeek( lzfd, sections[i].PointerToRawData, SEEK_SET );
260 if ( resSectionSize != LZRead( lzfd, (char*)resSection, resSectionSize ) ) goto done;
263 resDir = resSection + (resDataDir->VirtualAddress - sections[i].VirtualAddress);
266 resPtr = find_entry_by_id( resPtr, VS_FILE_INFO, resDir );
269 TRACE("No typeid entry found\n" );
272 resPtr = find_entry_by_id( resPtr, VS_VERSION_INFO, resDir );
275 TRACE("No resid entry found\n" );
278 resPtr = find_entry_default( resPtr, resDir );
281 TRACE("No default language entry found\n" );
285 /* Find resource data section */
286 resData = (const IMAGE_RESOURCE_DATA_ENTRY*)resPtr;
287 for ( i = 0; i < nSections; i++ )
288 if ( resData->OffsetToData >= sections[i].VirtualAddress
289 && resData->OffsetToData < sections[i].VirtualAddress +
290 sections[i].SizeOfRawData )
293 if ( i == nSections )
295 TRACE("Couldn't find resource data section\n" );
299 /* Return resource data */
300 if ( resLen ) *resLen = resData->Size;
301 if ( resOff ) *resOff = resData->OffsetToData - sections[i].VirtualAddress
302 + sections[i].PointerToRawData;
306 HeapFree( GetProcessHeap(), 0, resSection );
307 HeapFree( GetProcessHeap(), 0, sections );
312 /***********************************************************************
313 * find_version_resource [internal]
315 DWORD find_version_resource( HFILE lzfd, DWORD *reslen, DWORD *offset )
317 DWORD magic = read_xx_header( lzfd );
321 case IMAGE_OS2_SIGNATURE:
322 if (!find_ne_resource( lzfd, reslen, offset )) magic = 0;
324 case IMAGE_NT_SIGNATURE:
325 if (!find_pe_resource( lzfd, reslen, offset )) magic = 0;