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/*
* Resources
*
* Copyright 1993 Robert J. Amstadt
* Copyright 1995, 2003 Alexandre Julliard
* Copyright 2006 Mike McCormack
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winternl.h"
#include "wine/debug.h"
#include "wine/exception.h"
#include "wine/list.h"
#include "kernel_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(resource);
/* we don't want to include winuser.h just for this */
#define IS_INTRESOURCE(x) (((ULONG_PTR)(x) >> 16) == 0)
/* retrieve the resource name to pass to the ntdll functions */
static NTSTATUS get_res_nameA( LPCSTR name, UNICODE_STRING *str )
{
if (IS_INTRESOURCE(name))
{
str->Buffer = ULongToPtr(LOWORD(name));
return STATUS_SUCCESS;
}
if (name[0] == '#')
{
ULONG value;
if (RtlCharToInteger( name + 1, 10, &value ) != STATUS_SUCCESS || HIWORD(value))
return STATUS_INVALID_PARAMETER;
str->Buffer = ULongToPtr(value);
return STATUS_SUCCESS;
}
RtlCreateUnicodeStringFromAsciiz( str, name );
return STATUS_SUCCESS;
}
static NTSTATUS get_res_nameW( LPCWSTR name, UNICODE_STRING *str )
{
if (IS_INTRESOURCE(name))
{
str->Buffer = ULongToPtr( LOWORD(name) );
return STATUS_SUCCESS;
}
if (name[0] == '#')
{
ULONG value;
RtlInitUnicodeString( str, name + 1 );
if (RtlUnicodeStringToInteger( str, 10, &value ) != STATUS_SUCCESS || HIWORD(value))
return STATUS_INVALID_PARAMETER;
str->Buffer = ULongToPtr(value);
return STATUS_SUCCESS;
}
RtlCreateUnicodeString( str, name );
RtlUpcaseUnicodeString( str, str, FALSE );
return STATUS_SUCCESS;
}
/**********************************************************************
* FindResourceExA (KERNEL32.@)
*/
HRSRC WINAPI FindResourceExA( HMODULE module, LPCSTR type, LPCSTR name, WORD lang )
{
NTSTATUS status;
UNICODE_STRING nameW, typeW;
HRSRC ret = NULL;
TRACE( "%p %s %s %04x\n", module, debugstr_a(type), debugstr_a(name), lang );
if (!module) module = GetModuleHandleW(0);
nameW.Buffer = NULL;
typeW.Buffer = NULL;
__TRY
{
if (!(status = get_res_nameA( name, &nameW )) && !(status = get_res_nameA( type, &typeW )))
ret = FindResourceExW( module, typeW.Buffer, nameW.Buffer, lang );
else
SetLastError( RtlNtStatusToDosError(status) );
}
__EXCEPT_PAGE_FAULT
{
SetLastError( ERROR_INVALID_PARAMETER );
}
__ENDTRY
if (!IS_INTRESOURCE(nameW.Buffer)) HeapFree( GetProcessHeap(), 0, nameW.Buffer );
if (!IS_INTRESOURCE(typeW.Buffer)) HeapFree( GetProcessHeap(), 0, typeW.Buffer );
return ret;
}
/**********************************************************************
* FindResourceA (KERNEL32.@)
*/
HRSRC WINAPI FindResourceA( HMODULE hModule, LPCSTR name, LPCSTR type )
{
return FindResourceExA( hModule, type, name, MAKELANGID( LANG_NEUTRAL, SUBLANG_NEUTRAL ) );
}
/**********************************************************************
* EnumResourceTypesA (KERNEL32.@)
*/
BOOL WINAPI EnumResourceTypesA( HMODULE hmod, ENUMRESTYPEPROCA lpfun, LONG_PTR lparam )
{
return EnumResourceTypesExA( hmod, lpfun, lparam, 0, 0 );
}
/**********************************************************************
* EnumResourceTypesW (KERNEL32.@)
*/
BOOL WINAPI EnumResourceTypesW( HMODULE hmod, ENUMRESTYPEPROCW lpfun, LONG_PTR lparam )
{
return EnumResourceTypesExW( hmod, lpfun, lparam, 0, 0 );
}
/**********************************************************************
* EnumResourceNamesA (KERNEL32.@)
*/
BOOL WINAPI EnumResourceNamesA( HMODULE hmod, LPCSTR type, ENUMRESNAMEPROCA lpfun, LONG_PTR lparam )
{
return EnumResourceNamesExA( hmod, type, lpfun, lparam, 0, 0 );
}
/**********************************************************************
* EnumResourceLanguagesA (KERNEL32.@)
*/
BOOL WINAPI EnumResourceLanguagesA( HMODULE hmod, LPCSTR type, LPCSTR name,
ENUMRESLANGPROCA lpfun, LONG_PTR lparam )
{
return EnumResourceLanguagesExA( hmod, type, name, lpfun, lparam, 0, 0 );
}
/**********************************************************************
* EnumResourceLanguagesW (KERNEL32.@)
*/
BOOL WINAPI EnumResourceLanguagesW( HMODULE hmod, LPCWSTR type, LPCWSTR name,
ENUMRESLANGPROCW lpfun, LONG_PTR lparam )
{
return EnumResourceLanguagesExW( hmod, type, name, lpfun, lparam, 0, 0 );
}
/*
* Data structure for updating resources.
* Type/Name/Language is a keyset for accessing resource data.
*
* QUEUEDUPDATES (root) ->
* list of struct resource_dir_entry (Type) ->
* list of struct resource_dir_entry (Name) ->
* list of struct resource_data Language + Data
*/
typedef struct
{
void *unknown[6];
LPWSTR pFileName;
BOOL bDeleteExistingResources;
struct list root;
} QUEUEDUPDATES;
/* this structure is shared for types and names */
struct resource_dir_entry {
struct list entry;
LPWSTR id;
struct list children;
};
/* this structure is the leaf */
struct resource_data {
struct list entry;
LANGID lang;
DWORD codepage;
DWORD cbData;
void *lpData;
};
static int resource_strcmp( LPCWSTR a, LPCWSTR b )
{
if ( a == b )
return 0;
if (!IS_INTRESOURCE( a ) && !IS_INTRESOURCE( b ) )
return wcscmp( a, b );
/* strings come before ids */
if (!IS_INTRESOURCE( a ) && IS_INTRESOURCE( b ))
return -1;
if (!IS_INTRESOURCE( b ) && IS_INTRESOURCE( a ))
return 1;
return ( a < b ) ? -1 : 1;
}
static struct resource_dir_entry *find_resource_dir_entry( struct list *dir, LPCWSTR id )
{
struct resource_dir_entry *ent;
/* match either IDs or strings */
LIST_FOR_EACH_ENTRY( ent, dir, struct resource_dir_entry, entry )
if (!resource_strcmp( id, ent->id ))
return ent;
return NULL;
}
static struct resource_data *find_resource_data( struct list *dir, LANGID lang )
{
struct resource_data *res_data;
/* match only languages here */
LIST_FOR_EACH_ENTRY( res_data, dir, struct resource_data, entry )
if ( lang == res_data->lang )
return res_data;
return NULL;
}
static void add_resource_dir_entry( struct list *dir, struct resource_dir_entry *resdir )
{
struct resource_dir_entry *ent;
LIST_FOR_EACH_ENTRY( ent, dir, struct resource_dir_entry, entry )
{
if (0>resource_strcmp( ent->id, resdir->id ))
continue;
list_add_before( &ent->entry, &resdir->entry );
return;
}
list_add_tail( dir, &resdir->entry );
}
static void add_resource_data_entry( struct list *dir, struct resource_data *resdata )
{
struct resource_data *ent;
LIST_FOR_EACH_ENTRY( ent, dir, struct resource_data, entry )
{
if (ent->lang < resdata->lang)
continue;
list_add_before( &ent->entry, &resdata->entry );
return;
}
list_add_tail( dir, &resdata->entry );
}
static LPWSTR res_strdupW( LPCWSTR str )
{
LPWSTR ret;
UINT len;
if (IS_INTRESOURCE(str))
return (LPWSTR) (UINT_PTR) LOWORD(str);
len = (lstrlenW( str ) + 1) * sizeof (WCHAR);
ret = HeapAlloc( GetProcessHeap(), 0, len );
memcpy( ret, str, len );
return ret;
}
static void res_free_str( LPWSTR str )
{
if (!IS_INTRESOURCE(str))
HeapFree( GetProcessHeap(), 0, str );
}
static BOOL update_add_resource( QUEUEDUPDATES *updates, LPCWSTR Type, LPCWSTR Name,
LANGID Lang, struct resource_data *resdata,
BOOL overwrite_existing )
{
struct resource_dir_entry *restype, *resname;
struct resource_data *existing;
TRACE("%p %s %s %p %d\n", updates,
debugstr_w(Type), debugstr_w(Name), resdata, overwrite_existing );
restype = find_resource_dir_entry( &updates->root, Type );
if (!restype)
{
restype = HeapAlloc( GetProcessHeap(), 0, sizeof *restype );
restype->id = res_strdupW( Type );
list_init( &restype->children );
add_resource_dir_entry( &updates->root, restype );
}
resname = find_resource_dir_entry( &restype->children, Name );
if (!resname)
{
resname = HeapAlloc( GetProcessHeap(), 0, sizeof *resname );
resname->id = res_strdupW( Name );
list_init( &resname->children );
add_resource_dir_entry( &restype->children, resname );
}
/*
* If there's an existing resource entry with matching (Type,Name,Language)
* it needs to be removed before adding the new data.
*/
existing = find_resource_data( &resname->children, Lang );
if (existing)
{
if (!overwrite_existing)
return FALSE;
list_remove( &existing->entry );
HeapFree( GetProcessHeap(), 0, existing );
}
if (resdata)
add_resource_data_entry( &resname->children, resdata );
return TRUE;
}
static struct resource_data *allocate_resource_data( WORD Language, DWORD codepage,
LPVOID lpData, DWORD cbData, BOOL copy_data )
{
struct resource_data *resdata;
if (!lpData || !cbData)
return NULL;
resdata = HeapAlloc( GetProcessHeap(), 0, sizeof *resdata + (copy_data ? cbData : 0) );
if (resdata)
{
resdata->lang = Language;
resdata->codepage = codepage;
resdata->cbData = cbData;
if (copy_data)
{
resdata->lpData = &resdata[1];
memcpy( resdata->lpData, lpData, cbData );
}
else
resdata->lpData = lpData;
}
return resdata;
}
static void free_resource_directory( struct list *head, int level )
{
struct list *ptr = NULL;
while ((ptr = list_head( head )))
{
list_remove( ptr );
if (level)
{
struct resource_dir_entry *ent;
ent = LIST_ENTRY( ptr, struct resource_dir_entry, entry );
res_free_str( ent->id );
free_resource_directory( &ent->children, level - 1 );
HeapFree(GetProcessHeap(), 0, ent);
}
else
{
struct resource_data *data;
data = LIST_ENTRY( ptr, struct resource_data, entry );
HeapFree( GetProcessHeap(), 0, data );
}
}
}
static IMAGE_NT_HEADERS *get_nt_header( void *base, DWORD mapping_size )
{
IMAGE_NT_HEADERS *nt;
IMAGE_DOS_HEADER *dos;
if (mapping_size<sizeof (*dos))
return NULL;
dos = base;
if (dos->e_magic != IMAGE_DOS_SIGNATURE)
return NULL;
if ((dos->e_lfanew + sizeof (*nt)) > mapping_size)
return NULL;
nt = (void*) ((BYTE*)base + dos->e_lfanew);
if (nt->Signature != IMAGE_NT_SIGNATURE)
return NULL;
return nt;
}
static IMAGE_SECTION_HEADER *get_section_header( void *base, DWORD mapping_size, DWORD *num_sections )
{
IMAGE_NT_HEADERS *nt;
DWORD section_ofs;
nt = get_nt_header( base, mapping_size );
if (!nt)
return NULL;
/* check that we don't go over the end of the file accessing the sections */
section_ofs = FIELD_OFFSET(IMAGE_NT_HEADERS, OptionalHeader) + nt->FileHeader.SizeOfOptionalHeader;
if ((nt->FileHeader.NumberOfSections * sizeof (IMAGE_SECTION_HEADER) + section_ofs) > mapping_size)
return NULL;
if (num_sections)
*num_sections = nt->FileHeader.NumberOfSections;
/* from here we have a valid PE exe to update */
return (void*) ((BYTE*)nt + section_ofs);
}
static BOOL check_pe_exe( HANDLE file, QUEUEDUPDATES *updates )
{
const IMAGE_NT_HEADERS32 *nt;
const IMAGE_NT_HEADERS64 *nt64;
const IMAGE_SECTION_HEADER *sec;
const IMAGE_DATA_DIRECTORY *dd;
BOOL ret = FALSE;
HANDLE mapping;
DWORD mapping_size, num_sections = 0;
void *base = NULL;
mapping_size = GetFileSize( file, NULL );
mapping = CreateFileMappingW( file, NULL, PAGE_READONLY, 0, 0, NULL );
if (!mapping)
goto done;
base = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, mapping_size );
if (!base)
goto done;
nt = (IMAGE_NT_HEADERS32 *)get_nt_header( base, mapping_size );
if (!nt)
goto done;
nt64 = (IMAGE_NT_HEADERS64*)nt;
dd = &nt->OptionalHeader.DataDirectory[0];
if (nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC)
dd = &nt64->OptionalHeader.DataDirectory[0];
TRACE("resources: %08x %08x\n",
dd[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress,
dd[IMAGE_DIRECTORY_ENTRY_RESOURCE].Size);
sec = get_section_header( base, mapping_size, &num_sections );
if (!sec)
goto done;
ret = TRUE;
done:
if (base)
UnmapViewOfFile( base );
if (mapping)
CloseHandle( mapping );
return ret;
}
struct resource_size_info {
DWORD types_ofs;
DWORD names_ofs;
DWORD langs_ofs;
DWORD data_entry_ofs;
DWORD strings_ofs;
DWORD data_ofs;
DWORD total_size;
};
struct mapping_info {
HANDLE file;
void *base;
DWORD size;
BOOL read_write;
};
static const IMAGE_SECTION_HEADER *section_from_rva( void *base, DWORD mapping_size, DWORD rva )
{
const IMAGE_SECTION_HEADER *sec;
DWORD num_sections = 0;
int i;
sec = get_section_header( base, mapping_size, &num_sections );
if (!sec)
return NULL;
for (i=num_sections-1; i>=0; i--)
{
if (sec[i].VirtualAddress <= rva &&
rva <= (DWORD)sec[i].VirtualAddress + sec[i].SizeOfRawData)
{
return &sec[i];
}
}
return NULL;
}
static void *address_from_rva( void *base, DWORD mapping_size, DWORD rva, DWORD len )
{
const IMAGE_SECTION_HEADER *sec;
sec = section_from_rva( base, mapping_size, rva );
if (!sec)
return NULL;
if (rva + len <= (DWORD)sec->VirtualAddress + sec->SizeOfRawData)
return (void*)((LPBYTE) base + (sec->PointerToRawData + rva - sec->VirtualAddress));
return NULL;
}
static LPWSTR resource_dup_string( const IMAGE_RESOURCE_DIRECTORY *root, const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry )
{
const IMAGE_RESOURCE_DIR_STRING_U* string;
LPWSTR s;
if (!entry->u.s.NameIsString)
return UIntToPtr(entry->u.Id);
string = (const IMAGE_RESOURCE_DIR_STRING_U*) (((const char *)root) + entry->u.s.NameOffset);
s = HeapAlloc(GetProcessHeap(), 0, (string->Length + 1)*sizeof (WCHAR) );
memcpy( s, string->NameString, (string->Length + 1)*sizeof (WCHAR) );
s[string->Length] = 0;
return s;
}
/* this function is based on the code in winedump's pe.c */
static BOOL enumerate_mapped_resources( QUEUEDUPDATES *updates,
void *base, DWORD mapping_size,
const IMAGE_RESOURCE_DIRECTORY *root )
{
const IMAGE_RESOURCE_DIRECTORY *namedir, *langdir;
const IMAGE_RESOURCE_DIRECTORY_ENTRY *e1, *e2, *e3;
const IMAGE_RESOURCE_DATA_ENTRY *data;
DWORD i, j, k;
TRACE("version (%d.%d) %d named %d id entries\n",
root->MajorVersion, root->MinorVersion, root->NumberOfNamedEntries, root->NumberOfIdEntries);
for (i = 0; i< root->NumberOfNamedEntries + root->NumberOfIdEntries; i++)
{
LPWSTR Type;
e1 = (const IMAGE_RESOURCE_DIRECTORY_ENTRY*)(root + 1) + i;
Type = resource_dup_string( root, e1 );
namedir = (const IMAGE_RESOURCE_DIRECTORY *)((const char *)root + e1->u2.s2.OffsetToDirectory);
for (j = 0; j < namedir->NumberOfNamedEntries + namedir->NumberOfIdEntries; j++)
{
LPWSTR Name;
e2 = (const IMAGE_RESOURCE_DIRECTORY_ENTRY*)(namedir + 1) + j;
Name = resource_dup_string( root, e2 );
langdir = (const IMAGE_RESOURCE_DIRECTORY *)((const char *)root + e2->u2.s2.OffsetToDirectory);
for (k = 0; k < langdir->NumberOfNamedEntries + langdir->NumberOfIdEntries; k++)
{
LANGID Lang;
void *p;
struct resource_data *resdata;
e3 = (const IMAGE_RESOURCE_DIRECTORY_ENTRY*)(langdir + 1) + k;
Lang = e3->u.Id;
data = (const IMAGE_RESOURCE_DATA_ENTRY *)((const char *)root + e3->u2.OffsetToData);
p = address_from_rva( base, mapping_size, data->OffsetToData, data->Size );
resdata = allocate_resource_data( Lang, data->CodePage, p, data->Size, FALSE );
if (resdata)
{
if (!update_add_resource( updates, Type, Name, Lang, resdata, FALSE ))
HeapFree( GetProcessHeap(), 0, resdata );
}
}
res_free_str( Name );
}
res_free_str( Type );
}
return TRUE;
}
static BOOL read_mapped_resources( QUEUEDUPDATES *updates, void *base, DWORD mapping_size )
{
const IMAGE_RESOURCE_DIRECTORY *root;
const IMAGE_NT_HEADERS *nt;
const IMAGE_SECTION_HEADER *sec;
DWORD num_sections = 0, i;
nt = get_nt_header( base, mapping_size );
if (!nt)
return FALSE;
sec = get_section_header( base, mapping_size, &num_sections );
if (!sec)
return FALSE;
for (i=0; i<num_sections; i++)
if (!memcmp(sec[i].Name, ".rsrc", 6))
break;
if (i == num_sections)
return TRUE;
/* check the resource data is inside the mapping */
if (sec[i].PointerToRawData > mapping_size ||
(sec[i].PointerToRawData + sec[i].SizeOfRawData) > mapping_size)
return TRUE;
TRACE("found .rsrc at %08x, size %08x\n", sec[i].PointerToRawData, sec[i].SizeOfRawData);
if (!sec[i].PointerToRawData || sec[i].SizeOfRawData < sizeof(IMAGE_RESOURCE_DIRECTORY))
return TRUE;
root = (void*) ((BYTE*)base + sec[i].PointerToRawData);
enumerate_mapped_resources( updates, base, mapping_size, root );
return TRUE;
}
static BOOL map_file_into_memory( struct mapping_info *mi )
{
DWORD page_attr, perm;
HANDLE mapping;
if (mi->read_write)
{
page_attr = PAGE_READWRITE;
perm = FILE_MAP_WRITE | FILE_MAP_READ;
}
else
{
page_attr = PAGE_READONLY;
perm = FILE_MAP_READ;
}
mapping = CreateFileMappingW( mi->file, NULL, page_attr, 0, 0, NULL );
if (!mapping) return FALSE;
mi->base = MapViewOfFile( mapping, perm, 0, 0, mi->size );
CloseHandle( mapping );
return mi->base != NULL;
}
static BOOL unmap_file_from_memory( struct mapping_info *mi )
{
if (mi->base)
UnmapViewOfFile( mi->base );
mi->base = NULL;
return TRUE;
}
static void destroy_mapping( struct mapping_info *mi )
{
if (!mi)
return;
unmap_file_from_memory( mi );
if (mi->file)
CloseHandle( mi->file );
HeapFree( GetProcessHeap(), 0, mi );
}
static struct mapping_info *create_mapping( LPCWSTR name, BOOL rw )
{
struct mapping_info *mi;
mi = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof *mi );
if (!mi)
return NULL;
mi->read_write = rw;
mi->file = CreateFileW( name, GENERIC_READ | (rw ? GENERIC_WRITE : 0),
0, NULL, OPEN_EXISTING, 0, 0 );
if (mi->file != INVALID_HANDLE_VALUE)
{
mi->size = GetFileSize( mi->file, NULL );
if (map_file_into_memory( mi ))
return mi;
}
destroy_mapping( mi );
return NULL;
}
static BOOL resize_mapping( struct mapping_info *mi, DWORD new_size )
{
if (!unmap_file_from_memory( mi ))
return FALSE;
/* change the file size */
SetFilePointer( mi->file, new_size, NULL, FILE_BEGIN );
if (!SetEndOfFile( mi->file ))
{
ERR("failed to set file size to %08x\n", new_size );
return FALSE;
}
mi->size = new_size;
return map_file_into_memory( mi );
}
static void get_resource_sizes( QUEUEDUPDATES *updates, struct resource_size_info *si )
{
struct resource_dir_entry *types, *names;
struct resource_data *data;
DWORD num_types = 0, num_names = 0, num_langs = 0, strings_size = 0, data_size = 0;
memset( si, 0, sizeof *si );
LIST_FOR_EACH_ENTRY( types, &updates->root, struct resource_dir_entry, entry )
{
num_types++;
if (!IS_INTRESOURCE( types->id ))
strings_size += sizeof (WORD) + lstrlenW( types->id )*sizeof (WCHAR);
LIST_FOR_EACH_ENTRY( names, &types->children, struct resource_dir_entry, entry )
{
num_names++;
if (!IS_INTRESOURCE( names->id ))
strings_size += sizeof (WORD) + lstrlenW( names->id )*sizeof (WCHAR);
LIST_FOR_EACH_ENTRY( data, &names->children, struct resource_data, entry )
{
num_langs++;
data_size += (data->cbData + 3) & ~3;
}
}
}
/* names are at the end of the types */
si->names_ofs = sizeof (IMAGE_RESOURCE_DIRECTORY) +
num_types * sizeof (IMAGE_RESOURCE_DIRECTORY_ENTRY);
/* language directories are at the end of the names */
si->langs_ofs = si->names_ofs +
num_types * sizeof (IMAGE_RESOURCE_DIRECTORY) +
num_names * sizeof (IMAGE_RESOURCE_DIRECTORY_ENTRY);
si->data_entry_ofs = si->langs_ofs +
num_names * sizeof (IMAGE_RESOURCE_DIRECTORY) +
num_langs * sizeof (IMAGE_RESOURCE_DIRECTORY_ENTRY);
si->strings_ofs = si->data_entry_ofs +
num_langs * sizeof (IMAGE_RESOURCE_DATA_ENTRY);
si->data_ofs = si->strings_ofs + ((strings_size + 3) & ~3);
si->total_size = si->data_ofs + data_size;
TRACE("names %08x langs %08x data entries %08x strings %08x data %08x total %08x\n",
si->names_ofs, si->langs_ofs, si->data_entry_ofs,
si->strings_ofs, si->data_ofs, si->total_size);
}
static void res_write_padding( BYTE *res_base, DWORD size )
{
static const BYTE pad[] = {
'P','A','D','D','I','N','G','X','X','P','A','D','D','I','N','G' };
DWORD i;
for ( i = 0; i < size / sizeof pad; i++ )
memcpy( &res_base[i*sizeof pad], pad, sizeof pad );
memcpy( &res_base[i*sizeof pad], pad, size%sizeof pad );
}
static BOOL write_resources( QUEUEDUPDATES *updates, LPBYTE base, struct resource_size_info *si, DWORD rva )
{
struct resource_dir_entry *types, *names;
struct resource_data *data;
IMAGE_RESOURCE_DIRECTORY *root;
TRACE("%p %p %p %08x\n", updates, base, si, rva );
memset( base, 0, si->total_size );
/* the root entry always exists */
root = (IMAGE_RESOURCE_DIRECTORY*) base;
memset( root, 0, sizeof *root );
root->MajorVersion = 4;
si->types_ofs = sizeof *root;
LIST_FOR_EACH_ENTRY( types, &updates->root, struct resource_dir_entry, entry )
{
IMAGE_RESOURCE_DIRECTORY_ENTRY *e1;
IMAGE_RESOURCE_DIRECTORY *namedir;
e1 = (IMAGE_RESOURCE_DIRECTORY_ENTRY*) &base[si->types_ofs];
memset( e1, 0, sizeof *e1 );
if (!IS_INTRESOURCE( types->id ))
{
WCHAR *strings;
DWORD len;
root->NumberOfNamedEntries++;
e1->u.s.NameIsString = 1;
e1->u.s.NameOffset = si->strings_ofs;
strings = (WCHAR*) &base[si->strings_ofs];
len = lstrlenW( types->id );
strings[0] = len;
memcpy( &strings[1], types->id, len * sizeof (WCHAR) );
si->strings_ofs += (len + 1) * sizeof (WCHAR);
}
else
{
root->NumberOfIdEntries++;
e1->u.Id = LOWORD( types->id );
}
e1->u2.s2.OffsetToDirectory = si->names_ofs;
e1->u2.s2.DataIsDirectory = TRUE;
si->types_ofs += sizeof (IMAGE_RESOURCE_DIRECTORY_ENTRY);
namedir = (IMAGE_RESOURCE_DIRECTORY*) &base[si->names_ofs];
memset( namedir, 0, sizeof *namedir );
namedir->MajorVersion = 4;
si->names_ofs += sizeof (IMAGE_RESOURCE_DIRECTORY);
LIST_FOR_EACH_ENTRY( names, &types->children, struct resource_dir_entry, entry )
{
IMAGE_RESOURCE_DIRECTORY_ENTRY *e2;
IMAGE_RESOURCE_DIRECTORY *langdir;
e2 = (IMAGE_RESOURCE_DIRECTORY_ENTRY*) &base[si->names_ofs];
memset( e2, 0, sizeof *e2 );
if (!IS_INTRESOURCE( names->id ))
{
WCHAR *strings;
DWORD len;
namedir->NumberOfNamedEntries++;
e2->u.s.NameIsString = 1;
e2->u.s.NameOffset = si->strings_ofs;
strings = (WCHAR*) &base[si->strings_ofs];
len = lstrlenW( names->id );
strings[0] = len;
memcpy( &strings[1], names->id, len * sizeof (WCHAR) );
si->strings_ofs += (len + 1) * sizeof (WCHAR);
}
else
{
namedir->NumberOfIdEntries++;
e2->u.Id = LOWORD( names->id );
}
e2->u2.s2.OffsetToDirectory = si->langs_ofs;
e2->u2.s2.DataIsDirectory = TRUE;
si->names_ofs += sizeof (IMAGE_RESOURCE_DIRECTORY_ENTRY);
langdir = (IMAGE_RESOURCE_DIRECTORY*) &base[si->langs_ofs];
memset( langdir, 0, sizeof *langdir );
langdir->MajorVersion = 4;
si->langs_ofs += sizeof (IMAGE_RESOURCE_DIRECTORY);
LIST_FOR_EACH_ENTRY( data, &names->children, struct resource_data, entry )
{
IMAGE_RESOURCE_DIRECTORY_ENTRY *e3;
IMAGE_RESOURCE_DATA_ENTRY *de;
int pad_size;
e3 = (IMAGE_RESOURCE_DIRECTORY_ENTRY*) &base[si->langs_ofs];
memset( e3, 0, sizeof *e3 );
langdir->NumberOfIdEntries++;
e3->u.Id = LOWORD( data->lang );
e3->u2.OffsetToData = si->data_entry_ofs;
si->langs_ofs += sizeof (IMAGE_RESOURCE_DIRECTORY_ENTRY);
/* write out all the data entries */
de = (IMAGE_RESOURCE_DATA_ENTRY*) &base[si->data_entry_ofs];
memset( de, 0, sizeof *de );
de->OffsetToData = si->data_ofs + rva;
de->Size = data->cbData;
de->CodePage = data->codepage;
si->data_entry_ofs += sizeof (IMAGE_RESOURCE_DATA_ENTRY);
/* write out the resource data */
memcpy( &base[si->data_ofs], data->lpData, data->cbData );
si->data_ofs += data->cbData;
pad_size = (-si->data_ofs)&3;
res_write_padding( &base[si->data_ofs], pad_size );
si->data_ofs += pad_size;
}
}
}
return TRUE;
}
/*
* FIXME:
* Assumes that the resources are in .rsrc
* and .rsrc is the last section in the file.
* Not sure whether updating resources will other cases on Windows.
* If the resources lie in a section containing other data,
* resizing that section could possibly cause trouble.
* If the section with the resources isn't last, the remaining
* sections need to be moved down in the file, and the section header
* would need to be adjusted.
* If we needed to add a section, what would we name it?
* If we needed to add a section and there wasn't space in the file
* header, how would that work?
* Seems that at least some of these cases can't be handled properly.
*/
static IMAGE_SECTION_HEADER *get_resource_section( void *base, DWORD mapping_size )
{
IMAGE_SECTION_HEADER *sec;
IMAGE_NT_HEADERS *nt;
DWORD i, num_sections = 0;
nt = get_nt_header( base, mapping_size );
if (!nt)
return NULL;
sec = get_section_header( base, mapping_size, &num_sections );
if (!sec)
return NULL;
/* find the resources section */
for (i=0; i<num_sections; i++)
if (!memcmp(sec[i].Name, ".rsrc", 6))
break;
if (i == num_sections)
return NULL;
return &sec[i];
}
static DWORD get_init_data_size( void *base, DWORD mapping_size )
{
DWORD i, sz = 0, num_sections = 0;
IMAGE_SECTION_HEADER *s;
s = get_section_header( base, mapping_size, &num_sections );
for (i=0; i<num_sections; i++)
if (s[i].Characteristics & IMAGE_SCN_CNT_INITIALIZED_DATA)
sz += s[i].SizeOfRawData;
TRACE("size = %08x\n", sz);
return sz;
}
static BOOL write_raw_resources( QUEUEDUPDATES *updates )
{
static const WCHAR prefix[] = { 'r','e','s','u',0 };
WCHAR tempdir[MAX_PATH], tempfile[MAX_PATH];
DWORD i, section_size;
BOOL ret = FALSE;
IMAGE_SECTION_HEADER *sec;
IMAGE_NT_HEADERS32 *nt;
IMAGE_NT_HEADERS64 *nt64;
struct resource_size_info res_size;
BYTE *res_base;
struct mapping_info *read_map = NULL, *write_map = NULL;
DWORD PeSectionAlignment, PeFileAlignment, PeSizeOfImage;
/* copy the exe to a temp file then update the temp file... */
tempdir[0] = 0;
if (!GetTempPathW( MAX_PATH, tempdir ))
return ret;
if (!GetTempFileNameW( tempdir, prefix, 0, tempfile ))
return ret;
if (!CopyFileW( updates->pFileName, tempfile, FALSE ))
goto done;
TRACE("tempfile %s\n", debugstr_w(tempfile));
if (!updates->bDeleteExistingResources)
{
read_map = create_mapping( updates->pFileName, FALSE );
if (!read_map)
goto done;
ret = read_mapped_resources( updates, read_map->base, read_map->size );
if (!ret)
{
ERR("failed to read existing resources\n");
goto done;
}
}
write_map = create_mapping( tempfile, TRUE );
if (!write_map)
goto done;
nt = (IMAGE_NT_HEADERS32*)get_nt_header( write_map->base, write_map->size );
if (!nt)
goto done;
nt64 = (IMAGE_NT_HEADERS64*)nt;
if (nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC) {
PeSectionAlignment = nt64->OptionalHeader.SectionAlignment;
PeFileAlignment = nt64->OptionalHeader.FileAlignment;
PeSizeOfImage = nt64->OptionalHeader.SizeOfImage;
} else {
PeSectionAlignment = nt->OptionalHeader.SectionAlignment;
PeFileAlignment = nt->OptionalHeader.FileAlignment;
PeSizeOfImage = nt->OptionalHeader.SizeOfImage;
}
if ((LONG)PeSectionAlignment <= 0)
{
ERR("invalid section alignment %08x\n", PeSectionAlignment);
goto done;
}
if ((LONG)PeFileAlignment <= 0)
{
ERR("invalid file alignment %08x\n", PeFileAlignment);
goto done;
}
sec = get_resource_section( write_map->base, write_map->size );
if (!sec) /* no section, add one */
{
DWORD num_sections;
sec = get_section_header( write_map->base, write_map->size, &num_sections );
if (!sec)
goto done;
sec += num_sections;
nt->FileHeader.NumberOfSections++;
memset( sec, 0, sizeof *sec );
memcpy( sec->Name, ".rsrc", 5 );
sec->Characteristics = IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_MEM_READ;
sec->VirtualAddress = PeSizeOfImage;
}
if (!sec->PointerToRawData) /* empty section */
{
sec->PointerToRawData = write_map->size + (-write_map->size) % PeFileAlignment;
sec->SizeOfRawData = 0;
}
TRACE("before .rsrc at %08x, size %08x\n", sec->PointerToRawData, sec->SizeOfRawData);
get_resource_sizes( updates, &res_size );
/* round up the section size */
section_size = res_size.total_size;
section_size += (-section_size) % PeFileAlignment;
TRACE("requires %08x (%08x) bytes\n", res_size.total_size, section_size );
/* check if the file size needs to be changed */
if (section_size != sec->SizeOfRawData)
{
DWORD old_size = write_map->size;
DWORD virtual_section_size = res_size.total_size + (-res_size.total_size) % PeSectionAlignment;
int delta = section_size - (sec->SizeOfRawData + (-sec->SizeOfRawData) % PeFileAlignment);
int rva_delta = virtual_section_size -
(sec->Misc.VirtualSize + (-sec->Misc.VirtualSize) % PeSectionAlignment);
/* when new section is added it could end past current mapping size */
BOOL rsrc_is_last = sec->PointerToRawData + sec->SizeOfRawData >= old_size;
/* align .rsrc size when possible */
DWORD mapping_size = rsrc_is_last ? sec->PointerToRawData + section_size : old_size + delta;
/* postpone file truncation if there are some data to be moved down from file end */
BOOL resize_after = mapping_size < old_size && !rsrc_is_last;
TRACE("file size %08x -> %08x\n", old_size, mapping_size);
if (!resize_after)
{
/* unmap the file before changing the file size */
ret = resize_mapping( write_map, mapping_size );
/* get the pointers again - they might be different after remapping */
nt = (IMAGE_NT_HEADERS32*)get_nt_header( write_map->base, mapping_size );
if (!nt)
{
ERR("couldn't get NT header\n");
goto done;
}
nt64 = (IMAGE_NT_HEADERS64*)nt;
sec = get_resource_section( write_map->base, mapping_size );
if (!sec)
goto done;
}
if (!rsrc_is_last) /* not last section, relocate trailing sections */
{
IMAGE_SECTION_HEADER *s;
DWORD tail_start = sec->PointerToRawData + sec->SizeOfRawData;
DWORD i, num_sections = 0;
memmove( (char*)write_map->base + tail_start + delta, (char*)write_map->base + tail_start, old_size - tail_start );
s = get_section_header( write_map->base, mapping_size, &num_sections );
for (i=0; i<num_sections; i++)
{
if (s[i].PointerToRawData > sec->PointerToRawData)
{
s[i].PointerToRawData += delta;
s[i].VirtualAddress += rva_delta;
}
}
}
if (resize_after)
{
ret = resize_mapping( write_map, mapping_size );
nt = (IMAGE_NT_HEADERS32*)get_nt_header( write_map->base, mapping_size );
if (!nt)
{
ERR("couldn't get NT header\n");
goto done;
}
nt64 = (IMAGE_NT_HEADERS64*)nt;
sec = get_resource_section( write_map->base, mapping_size );
if (!sec)
goto done;
}
/* adjust the PE header information */
sec->SizeOfRawData = section_size;
sec->Misc.VirtualSize = virtual_section_size;
if (nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC) {
nt64->OptionalHeader.SizeOfImage += rva_delta;
nt64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress = sec->VirtualAddress;
nt64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].Size = res_size.total_size;
nt64->OptionalHeader.SizeOfInitializedData = get_init_data_size( write_map->base, mapping_size );
for (i=0; i<nt64->OptionalHeader.NumberOfRvaAndSizes; i++)
if (nt64->OptionalHeader.DataDirectory[i].VirtualAddress > sec->VirtualAddress)
nt64->OptionalHeader.DataDirectory[i].VirtualAddress += rva_delta;
} else {
nt->OptionalHeader.SizeOfImage += rva_delta;
nt->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress = sec->VirtualAddress;
nt->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].Size = res_size.total_size;
nt->OptionalHeader.SizeOfInitializedData = get_init_data_size( write_map->base, mapping_size );
for (i=0; i<nt->OptionalHeader.NumberOfRvaAndSizes; i++)
if (nt->OptionalHeader.DataDirectory[i].VirtualAddress > sec->VirtualAddress)
nt->OptionalHeader.DataDirectory[i].VirtualAddress += rva_delta;
}
}
res_base = (LPBYTE) write_map->base + sec->PointerToRawData;
TRACE("base = %p offset = %08x\n", write_map->base, sec->PointerToRawData);
ret = write_resources( updates, res_base, &res_size, sec->VirtualAddress );
res_write_padding( res_base + res_size.total_size, section_size - res_size.total_size );
TRACE("after .rsrc at %08x, size %08x\n", sec->PointerToRawData, sec->SizeOfRawData);
done:
destroy_mapping( read_map );
destroy_mapping( write_map );
if (ret)
ret = CopyFileW( tempfile, updates->pFileName, FALSE );
DeleteFileW( tempfile );
return ret;
}
/***********************************************************************
* BeginUpdateResourceW (KERNEL32.@)
*/
HANDLE WINAPI BeginUpdateResourceW( LPCWSTR pFileName, BOOL bDeleteExistingResources )
{
QUEUEDUPDATES *updates = NULL;
HANDLE hUpdate, file, ret = NULL;
TRACE("%s, %d\n", debugstr_w(pFileName), bDeleteExistingResources);
hUpdate = GlobalAlloc(GHND, sizeof(QUEUEDUPDATES));
if (!hUpdate)
return ret;
updates = GlobalLock(hUpdate);
if (updates)
{
list_init( &updates->root );
updates->bDeleteExistingResources = bDeleteExistingResources;
updates->pFileName = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(pFileName)+1)*sizeof(WCHAR));
if (updates->pFileName)
{
lstrcpyW(updates->pFileName, pFileName);
file = CreateFileW( pFileName, GENERIC_READ | GENERIC_WRITE,
0, NULL, OPEN_EXISTING, 0, 0 );
/* if resources are deleted, only the file's presence is checked */
if (file != INVALID_HANDLE_VALUE &&
(bDeleteExistingResources || check_pe_exe( file, updates )))
ret = hUpdate;
else
HeapFree( GetProcessHeap(), 0, updates->pFileName );
CloseHandle( file );
}
GlobalUnlock(hUpdate);
}
if (!ret)
GlobalFree(hUpdate);
return ret;
}
/***********************************************************************
* BeginUpdateResourceA (KERNEL32.@)
*/
HANDLE WINAPI BeginUpdateResourceA( LPCSTR pFileName, BOOL bDeleteExistingResources )
{
UNICODE_STRING FileNameW;
HANDLE ret;
RtlCreateUnicodeStringFromAsciiz(&FileNameW, pFileName);
ret = BeginUpdateResourceW(FileNameW.Buffer, bDeleteExistingResources);
RtlFreeUnicodeString(&FileNameW);
return ret;
}
/***********************************************************************
* EndUpdateResourceW (KERNEL32.@)
*/
BOOL WINAPI EndUpdateResourceW( HANDLE hUpdate, BOOL fDiscard )
{
QUEUEDUPDATES *updates;
BOOL ret;
TRACE("%p %d\n", hUpdate, fDiscard);
updates = GlobalLock(hUpdate);
if (!updates)
return FALSE;
ret = fDiscard || write_raw_resources( updates );
free_resource_directory( &updates->root, 2 );
HeapFree( GetProcessHeap(), 0, updates->pFileName );
GlobalUnlock( hUpdate );
GlobalFree( hUpdate );
return ret;
}
/***********************************************************************
* EndUpdateResourceA (KERNEL32.@)
*/
BOOL WINAPI EndUpdateResourceA( HANDLE hUpdate, BOOL fDiscard )
{
return EndUpdateResourceW(hUpdate, fDiscard);
}
/***********************************************************************
* UpdateResourceW (KERNEL32.@)
*/
BOOL WINAPI UpdateResourceW( HANDLE hUpdate, LPCWSTR lpType, LPCWSTR lpName,
WORD wLanguage, LPVOID lpData, DWORD cbData)
{
QUEUEDUPDATES *updates;
UNICODE_STRING nameW, typeW;
BOOL ret = FALSE;
TRACE("%p %s %s %08x %p %d\n", hUpdate,
debugstr_w(lpType), debugstr_w(lpName), wLanguage, lpData, cbData);
nameW.Buffer = typeW.Buffer = NULL;
updates = GlobalLock(hUpdate);
if (updates)
{
if (!set_ntstatus( get_res_nameW( lpName, &nameW ))) goto done;
if (!set_ntstatus( get_res_nameW( lpType, &typeW ))) goto done;
if (lpData == NULL && cbData == 0) /* remove resource */
{
ret = update_add_resource( updates, typeW.Buffer, nameW.Buffer, wLanguage, NULL, TRUE );
}
else
{
struct resource_data *data;
data = allocate_resource_data( wLanguage, 0, lpData, cbData, TRUE );
if (data)
ret = update_add_resource( updates, typeW.Buffer, nameW.Buffer, wLanguage, data, TRUE );
}
done:
GlobalUnlock(hUpdate);
}
if (!IS_INTRESOURCE(nameW.Buffer)) HeapFree( GetProcessHeap(), 0, nameW.Buffer );
if (!IS_INTRESOURCE(typeW.Buffer)) HeapFree( GetProcessHeap(), 0, typeW.Buffer );
return ret;
}
/***********************************************************************
* UpdateResourceA (KERNEL32.@)
*/
BOOL WINAPI UpdateResourceA( HANDLE hUpdate, LPCSTR lpType, LPCSTR lpName,
WORD wLanguage, LPVOID lpData, DWORD cbData)
{
BOOL ret;
UNICODE_STRING TypeW;
UNICODE_STRING NameW;
if(IS_INTRESOURCE(lpType))
TypeW.Buffer = ULongToPtr(LOWORD(lpType));
else
RtlCreateUnicodeStringFromAsciiz(&TypeW, lpType);
if(IS_INTRESOURCE(lpName))
NameW.Buffer = ULongToPtr(LOWORD(lpName));
else
RtlCreateUnicodeStringFromAsciiz(&NameW, lpName);
ret = UpdateResourceW(hUpdate, TypeW.Buffer, NameW.Buffer, wLanguage, lpData, cbData);
if(!IS_INTRESOURCE(lpType)) RtlFreeUnicodeString(&TypeW);
if(!IS_INTRESOURCE(lpName)) RtlFreeUnicodeString(&NameW);
return ret;
}
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