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wine/loader/pe_resource.c
Alexandre Julliard cd3afa895b LOAD_LIBRARY_AS_DATAFILE modules must be mapped like normal files, not 
like PE images. Fixed resource loading to handle that.
2002-01-31 23:32:57 +00:00

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/*
* PE (Portable Execute) File Resources
*
* Copyright 1995 Thomas Sandford
* Copyright 1996 Martin von Loewis
*
* Based on the Win16 resource handling code in loader/resource.c
* Copyright 1993 Robert J. Amstadt
* Copyright 1995 Alexandre Julliard
* Copyright 1997 Marcus Meissner
*/
#include "config.h"
#include <stdlib.h>
#include <sys/types.h>
#include "wine/unicode.h"
#include "windef.h"
#include "winnls.h"
#include "winerror.h"
#include "module.h"
#include "stackframe.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(resource);
/**********************************************************************
* get_module_base
*
* Get the base address of a module
*/
static const void *get_module_base( HMODULE hmod )
{
if (!hmod) hmod = GetModuleHandleA( NULL );
else if (!HIWORD(hmod))
{
FIXME("Enumeration of 16-bit resources is not supported\n");
SetLastError(ERROR_INVALID_HANDLE);
return NULL;
}
/* clear low order bit in case of LOAD_LIBRARY_AS_DATAFILE module */
return (void *)((ULONG_PTR)hmod & ~1);
}
/**********************************************************************
* is_data_file_module
*
* Check if a module handle is for a LOAD_LIBRARY_AS_DATAFILE module.
*/
inline static int is_data_file_module( HMODULE hmod )
{
return (ULONG_PTR)hmod & 1;
}
/**********************************************************************
* get_data_file_ptr
*
* Get a pointer to a given offset in a file mapped as data file.
*/
static const void *get_data_file_ptr( const void *base, DWORD offset )
{
const IMAGE_NT_HEADERS *nt = PE_HEADER(base);
const IMAGE_SECTION_HEADER *sec = (IMAGE_SECTION_HEADER *)((char *)&nt->OptionalHeader +
nt->FileHeader.SizeOfOptionalHeader);
int i;
/* find the section containing the virtual address */
for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
{
if ((sec->VirtualAddress <= offset) && (sec->VirtualAddress + sec->SizeOfRawData > offset))
return (char *)base + sec->PointerToRawData + (offset - sec->VirtualAddress);
}
return NULL;
}
/**********************************************************************
* get_resdir
*
* Get the resource directory of a PE module
*/
static const IMAGE_RESOURCE_DIRECTORY* get_resdir( HMODULE hmod )
{
const IMAGE_DATA_DIRECTORY *dir;
const IMAGE_RESOURCE_DIRECTORY *ret = NULL;
const void *base = get_module_base( hmod );
if (base)
{
dir = &PE_HEADER(base)->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE];
if (dir->Size && dir->VirtualAddress)
{
if (is_data_file_module(hmod)) ret = get_data_file_ptr( base, dir->VirtualAddress );
else ret = (IMAGE_RESOURCE_DIRECTORY *)((char *)base + dir->VirtualAddress);
}
}
return ret;
}
/**********************************************************************
* find_entry_by_id
*
* Find an entry by id in a resource directory
*/
static const IMAGE_RESOURCE_DIRECTORY *find_entry_by_id( const IMAGE_RESOURCE_DIRECTORY *dir,
WORD id, const void *root )
{
const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
int min, max, pos;
entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
min = dir->NumberOfNamedEntries;
max = min + dir->NumberOfIdEntries - 1;
while (min <= max)
{
pos = (min + max) / 2;
if (entry[pos].u1.s2.Id == id)
return (IMAGE_RESOURCE_DIRECTORY *)((char *)root + entry[pos].u2.s3.OffsetToDirectory);
if (entry[pos].u1.s2.Id > id) max = pos - 1;
else min = pos + 1;
}
return NULL;
}
/**********************************************************************
* find_entry_by_nameW
*
* Find an entry by name in a resource directory
*/
static const IMAGE_RESOURCE_DIRECTORY *find_entry_by_nameW( const IMAGE_RESOURCE_DIRECTORY *dir,
LPCWSTR name, const void *root )
{
const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
const IMAGE_RESOURCE_DIR_STRING_U *str;
int min, max, res, pos, namelen;
if (!HIWORD(name)) return find_entry_by_id( dir, LOWORD(name), root );
if (name[0] == '#')
{
char buf[16];
if (!WideCharToMultiByte( CP_ACP, 0, name+1, -1, buf, sizeof(buf), NULL, NULL ))
return NULL;
return find_entry_by_id( dir, atoi(buf), root );
}
entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
namelen = strlenW(name);
min = 0;
max = dir->NumberOfNamedEntries - 1;
while (min <= max)
{
pos = (min + max) / 2;
str = (IMAGE_RESOURCE_DIR_STRING_U *)((char *)root + entry[pos].u1.s1.NameOffset);
res = strncmpiW( name, str->NameString, str->Length );
if (!res && namelen == str->Length)
return (IMAGE_RESOURCE_DIRECTORY *)((char *)root + entry[pos].u2.s3.OffsetToDirectory);
if (res < 0) max = pos - 1;
else min = pos + 1;
}
return NULL;
}
/**********************************************************************
* find_entry_by_nameA
*
* Find an entry by name in a resource directory
*/
static const IMAGE_RESOURCE_DIRECTORY *find_entry_by_nameA( const IMAGE_RESOURCE_DIRECTORY *dir,
LPCSTR name, const void *root )
{
const IMAGE_RESOURCE_DIRECTORY *ret = NULL;
LPWSTR nameW;
INT len;
if (!HIWORD(name)) return find_entry_by_id( dir, LOWORD(name), root );
if (name[0] == '#')
{
return find_entry_by_id( dir, atoi(name+1), root );
}
len = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 );
if ((nameW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
{
MultiByteToWideChar( CP_ACP, 0, name, -1, nameW, len );
ret = find_entry_by_nameW( dir, nameW, root );
HeapFree( GetProcessHeap(), 0, nameW );
}
return ret;
}
/**********************************************************************
* find_entry_default
*
* Find a default entry in a resource directory
*/
static const IMAGE_RESOURCE_DIRECTORY *find_entry_default( const IMAGE_RESOURCE_DIRECTORY *dir,
const void *root )
{
const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
return (IMAGE_RESOURCE_DIRECTORY *)((char *)root + entry->u2.s3.OffsetToDirectory);
}
/**********************************************************************
* PE_FindResourceExW
*
* FindResourceExA/W does search in the following order:
* 1. Exact specified language
* 2. Language with neutral sublanguage
* 3. Neutral language with neutral sublanguage
* 4. Neutral language with default sublanguage
*/
HRSRC PE_FindResourceExW( HMODULE hmod, LPCWSTR name, LPCWSTR type, WORD lang )
{
const IMAGE_RESOURCE_DIRECTORY *resdirptr = get_resdir(hmod);
const void *root;
HRSRC result;
if (!resdirptr) return 0;
root = resdirptr;
if (!(resdirptr = find_entry_by_nameW(resdirptr, type, root))) return 0;
if (!(resdirptr = find_entry_by_nameW(resdirptr, name, root))) return 0;
/* 1. Exact specified language */
if ((result = (HRSRC)find_entry_by_id( resdirptr, lang, root ))) goto found;
/* 2. Language with neutral sublanguage */
lang = MAKELANGID(PRIMARYLANGID(lang), SUBLANG_NEUTRAL);
if ((result = (HRSRC)find_entry_by_id( resdirptr, lang, root ))) goto found;
/* 3. Neutral language with neutral sublanguage */
lang = MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL);
if ((result = (HRSRC)find_entry_by_id( resdirptr, lang, root ))) goto found;
/* 4. Neutral language with default sublanguage */
lang = MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT);
result = (HRSRC)find_entry_by_id( resdirptr, lang, root );
found:
return result;
}
/**********************************************************************
* PE_FindResourceW
*
* Load[String]/[Icon]/[Menu]/[etc.] does use FindResourceA/W.
* FindResourceA/W does search in the following order:
* 1. Neutral language with neutral sublanguage
* 2. Neutral language with default sublanguage
* 3. Current locale lang id
* 4. Current locale lang id with neutral sublanguage
* 5. (!) LANG_ENGLISH, SUBLANG_DEFAULT
* 6. Return first in the list
*/
HRSRC PE_FindResourceW( HMODULE hmod, LPCWSTR name, LPCWSTR type )
{
const IMAGE_RESOURCE_DIRECTORY *resdirptr = get_resdir(hmod);
const void *root;
HRSRC result;
WORD lang;
if (!resdirptr) return 0;
root = resdirptr;
if (!(resdirptr = find_entry_by_nameW(resdirptr, type, root))) return 0;
if (!(resdirptr = find_entry_by_nameW(resdirptr, name, root))) return 0;
/* 1. Neutral language with neutral sublanguage */
lang = MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL);
if ((result = (HRSRC)find_entry_by_id( resdirptr, lang, root ))) goto found;
/* 2. Neutral language with default sublanguage */
lang = MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT);
if ((result = (HRSRC)find_entry_by_id( resdirptr, lang, root ))) goto found;
/* 3. Current locale lang id */
lang = LANGIDFROMLCID(GetUserDefaultLCID());
if ((result = (HRSRC)find_entry_by_id( resdirptr, lang, root ))) goto found;
/* 4. Current locale lang id with neutral sublanguage */
lang = MAKELANGID(PRIMARYLANGID(lang), SUBLANG_NEUTRAL);
if ((result = (HRSRC)find_entry_by_id( resdirptr, lang, root ))) goto found;
/* 5. (!) LANG_ENGLISH, SUBLANG_DEFAULT */
lang = MAKELANGID(LANG_ENGLISH, SUBLANG_DEFAULT);
if ((result = (HRSRC)find_entry_by_id( resdirptr, lang, root ))) goto found;
/* 6. Return first in the list */
result = (HRSRC)find_entry_default( resdirptr, root );
found:
return result;
}
/**********************************************************************
* PE_LoadResource
*/
HGLOBAL PE_LoadResource( HMODULE hmod, HRSRC hRsrc )
{
DWORD offset;
const void *base = get_module_base( hmod );
if (!hRsrc || !base) return 0;
offset = ((PIMAGE_RESOURCE_DATA_ENTRY)hRsrc)->OffsetToData;
if (is_data_file_module(hmod))
return (HANDLE)get_data_file_ptr( base, offset );
else
return (HANDLE)((char *)base + offset);
}
/**********************************************************************
* PE_SizeofResource
*/
DWORD PE_SizeofResource( HRSRC hRsrc )
{
if (!hRsrc) return 0;
return ((PIMAGE_RESOURCE_DATA_ENTRY)hRsrc)->Size;
}
/**********************************************************************
* EnumResourceTypesA (KERNEL32.@)
*/
BOOL WINAPI EnumResourceTypesA( HMODULE hmod, ENUMRESTYPEPROCA lpfun, LONG lparam)
{
int i;
const IMAGE_RESOURCE_DIRECTORY *resdir = get_resdir(hmod);
const IMAGE_RESOURCE_DIRECTORY_ENTRY *et;
BOOL ret;
if (!resdir) return FALSE;
et =(PIMAGE_RESOURCE_DIRECTORY_ENTRY)(resdir + 1);
ret = FALSE;
for (i=0;i<resdir->NumberOfNamedEntries+resdir->NumberOfIdEntries;i++) {
LPSTR type;
if (et[i].u1.s1.NameIsString)
{
PIMAGE_RESOURCE_DIR_STRING_U pResString = (PIMAGE_RESOURCE_DIR_STRING_U) ((LPBYTE) resdir + et[i].u1.s1.NameOffset);
DWORD len = WideCharToMultiByte( CP_ACP, 0, pResString->NameString, pResString->Length,
NULL, 0, NULL, NULL);
if (!(type = HeapAlloc(GetProcessHeap(), 0, len + 1)))
return FALSE;
WideCharToMultiByte( CP_ACP, 0, pResString->NameString, pResString->Length,
type, len, NULL, NULL);
type[len] = '\0';
ret = lpfun(hmod,type,lparam);
HeapFree(GetProcessHeap(), 0, type);
}
else
{
type = (LPSTR)(int)et[i].u1.s2.Id;
ret = lpfun(hmod,type,lparam);
}
if (!ret)
break;
}
return ret;
}
/**********************************************************************
* EnumResourceTypesW (KERNEL32.@)
*/
BOOL WINAPI EnumResourceTypesW( HMODULE hmod, ENUMRESTYPEPROCW lpfun, LONG lparam)
{
int i;
const IMAGE_RESOURCE_DIRECTORY *resdir = get_resdir(hmod);
const IMAGE_RESOURCE_DIRECTORY_ENTRY *et;
BOOL ret;
if (!resdir) return FALSE;
et =(PIMAGE_RESOURCE_DIRECTORY_ENTRY)(resdir + 1);
ret = FALSE;
for (i=0;i<resdir->NumberOfNamedEntries+resdir->NumberOfIdEntries;i++) {
LPWSTR type;
if (et[i].u1.s1.NameIsString)
{
PIMAGE_RESOURCE_DIR_STRING_U pResString = (PIMAGE_RESOURCE_DIR_STRING_U) ((LPBYTE) resdir + et[i].u1.s1.NameOffset);
if (!(type = HeapAlloc(GetProcessHeap(), 0, (pResString->Length+1) * sizeof (WCHAR))))
return FALSE;
memcpy(type, pResString->NameString, pResString->Length * sizeof (WCHAR));
type[pResString->Length] = '\0';
ret = lpfun(hmod,type,lparam);
HeapFree(GetProcessHeap(), 0, type);
}
else
{
type = (LPWSTR)(int)et[i].u1.s2.Id;
ret = lpfun(hmod,type,lparam);
}
if (!ret)
break;
}
return ret;
}
/**********************************************************************
* EnumResourceNamesA (KERNEL32.@)
*/
BOOL WINAPI EnumResourceNamesA( HMODULE hmod, LPCSTR type, ENUMRESNAMEPROCA lpfun, LONG lparam )
{
int i;
const IMAGE_RESOURCE_DIRECTORY *basedir = get_resdir(hmod);
const IMAGE_RESOURCE_DIRECTORY *resdir;
const IMAGE_RESOURCE_DIRECTORY_ENTRY *et;
BOOL ret;
if (!basedir) return FALSE;
if (!(resdir = find_entry_by_nameA( basedir, type, basedir ))) return FALSE;
et =(PIMAGE_RESOURCE_DIRECTORY_ENTRY)(resdir + 1);
ret = FALSE;
for (i=0;i<resdir->NumberOfNamedEntries+resdir->NumberOfIdEntries;i++) {
LPSTR name;
if (et[i].u1.s1.NameIsString)
{
PIMAGE_RESOURCE_DIR_STRING_U pResString = (PIMAGE_RESOURCE_DIR_STRING_U) ((LPBYTE) basedir + et[i].u1.s1.NameOffset);
DWORD len = WideCharToMultiByte(CP_ACP, 0, pResString->NameString, pResString->Length,
NULL, 0, NULL, NULL);
if (!(name = HeapAlloc(GetProcessHeap(), 0, len + 1 )))
return FALSE;
WideCharToMultiByte( CP_ACP, 0, pResString->NameString, pResString->Length,
name, len, NULL, NULL );
name[len] = '\0';
ret = lpfun(hmod,type,name,lparam);
HeapFree( GetProcessHeap(), 0, name );
}
else
{
name = (LPSTR)(int)et[i].u1.s2.Id;
ret = lpfun(hmod,type,name,lparam);
}
if (!ret)
break;
}
return ret;
}
/**********************************************************************
* EnumResourceNamesW (KERNEL32.@)
*/
BOOL WINAPI EnumResourceNamesW( HMODULE hmod, LPCWSTR type, ENUMRESNAMEPROCW lpfun, LONG lparam )
{
int i;
const IMAGE_RESOURCE_DIRECTORY *basedir = get_resdir(hmod);
const IMAGE_RESOURCE_DIRECTORY *resdir;
const IMAGE_RESOURCE_DIRECTORY_ENTRY *et;
BOOL ret;
if (!basedir) return FALSE;
if (!(resdir = find_entry_by_nameW( basedir, type, basedir ))) return FALSE;
et = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(resdir + 1);
ret = FALSE;
for (i=0;i<resdir->NumberOfNamedEntries+resdir->NumberOfIdEntries;i++) {
LPWSTR name;
if (et[i].u1.s1.NameIsString)
{
PIMAGE_RESOURCE_DIR_STRING_U pResString = (PIMAGE_RESOURCE_DIR_STRING_U) ((LPBYTE) basedir + et[i].u1.s1.NameOffset);
if (!(name = HeapAlloc(GetProcessHeap(), 0, (pResString->Length + 1) * sizeof (WCHAR))))
return FALSE;
memcpy(name, pResString->NameString, pResString->Length * sizeof (WCHAR));
name[pResString->Length] = '\0';
ret = lpfun(hmod,type,name,lparam);
HeapFree(GetProcessHeap(), 0, name);
}
else
{
name = (LPWSTR)(int)et[i].u1.s2.Id;
ret = lpfun(hmod,type,name,lparam);
}
if (!ret)
break;
}
return ret;
}
/**********************************************************************
* EnumResourceLanguagesA (KERNEL32.@)
*/
BOOL WINAPI EnumResourceLanguagesA( HMODULE hmod, LPCSTR type, LPCSTR name,
ENUMRESLANGPROCA lpfun, LONG lparam )
{
int i;
const IMAGE_RESOURCE_DIRECTORY *basedir = get_resdir(hmod);
const IMAGE_RESOURCE_DIRECTORY *resdir;
const IMAGE_RESOURCE_DIRECTORY_ENTRY *et;
BOOL ret;
if (!basedir) return FALSE;
if (!(resdir = find_entry_by_nameA( basedir, type, basedir ))) return FALSE;
if (!(resdir = find_entry_by_nameA( resdir, name, basedir ))) return FALSE;
et =(PIMAGE_RESOURCE_DIRECTORY_ENTRY)(resdir + 1);
ret = FALSE;
for (i=0;i<resdir->NumberOfNamedEntries+resdir->NumberOfIdEntries;i++) {
/* languages are just ids... I hope */
ret = lpfun(hmod,type,name,et[i].u1.s2.Id,lparam);
if (!ret)
break;
}
return ret;
}
/**********************************************************************
* EnumResourceLanguagesW (KERNEL32.@)
*/
BOOL WINAPI EnumResourceLanguagesW( HMODULE hmod, LPCWSTR type, LPCWSTR name,
ENUMRESLANGPROCW lpfun, LONG lparam )
{
int i;
const IMAGE_RESOURCE_DIRECTORY *basedir = get_resdir(hmod);
const IMAGE_RESOURCE_DIRECTORY *resdir;
const IMAGE_RESOURCE_DIRECTORY_ENTRY *et;
BOOL ret;
if (!basedir) return FALSE;
if (!(resdir = find_entry_by_nameW( basedir, type, basedir ))) return FALSE;
if (!(resdir = find_entry_by_nameW( resdir, name, basedir ))) return FALSE;
et =(PIMAGE_RESOURCE_DIRECTORY_ENTRY)(resdir + 1);
ret = FALSE;
for (i=0;i<resdir->NumberOfNamedEntries+resdir->NumberOfIdEntries;i++) {
ret = lpfun(hmod,type,name,et[i].u1.s2.Id,lparam);
if (!ret)
break;
}
return ret;
}
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