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Added exception handlers in FindResourceExA/W (based on a patch by 

Richard Cohen).
This commit is contained in:
Alexandre Julliard 2003-12-13 01:36:14 +00:00
parent 8f63a714b2
commit 8543a5db9a
1 changed files with 108 additions and 49 deletions
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157
dlls/kernel/resource.c
View File

@ -34,6 +34,8 @@
#include "wownt32.h"
#include "wine/winbase16.h"
#include "wine/debug.h"
#include "excpt.h"
#include "wine/exception.h"
WINE_DEFAULT_DEBUG_CHANNEL(resource);
@ -44,6 +46,13 @@ WINE_DEFAULT_DEBUG_CHANNEL(resource);
#define HGLOBAL_16(h32) (LOWORD(h32))
#define HMODULE_16(h32) (LOWORD(h32))
static WINE_EXCEPTION_FILTER(page_fault)
{
if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION ||
GetExceptionCode() == EXCEPTION_PRIV_INSTRUCTION)
return EXCEPTION_EXECUTE_HANDLER;
return EXCEPTION_CONTINUE_SEARCH;
}
/* retrieve the resource name to pass to the ntdll functions */
static NTSTATUS get_res_nameA( LPCSTR name, UNICODE_STRING *str )
@ -88,16 +97,108 @@ static NTSTATUS get_res_nameW( LPCWSTR name, UNICODE_STRING *str )
return STATUS_SUCCESS;
}
/**********************************************************************
* FindResourceExA (KERNEL32.@)
*/
HRSRC WINAPI FindResourceExA( HMODULE hModule, LPCSTR type, LPCSTR name, WORD lang )
/* retrieve the resource names for the 16-bit FindResource function */
static BOOL get_res_name_type_WtoA( LPCWSTR name, LPCWSTR type, LPSTR *nameA, LPSTR *typeA )
{
*nameA = *typeA = NULL;
__TRY
{
if (HIWORD(name))
{
DWORD len = WideCharToMultiByte( CP_ACP, 0, name, -1, NULL, 0, NULL, NULL );
*nameA = HeapAlloc( GetProcessHeap(), 0, len );
if (*nameA) WideCharToMultiByte( CP_ACP, 0, name, -1, *nameA, len, NULL, NULL );
}
else *nameA = (LPSTR)name;
if (HIWORD(type))
{
DWORD len = WideCharToMultiByte( CP_ACP, 0, type, -1, NULL, 0, NULL, NULL );
*typeA = HeapAlloc( GetProcessHeap(), 0, len );
if (*typeA) WideCharToMultiByte( CP_ACP, 0, type, -1, *typeA, len, NULL, NULL );
}
else *typeA = (LPSTR)type;
}
__EXCEPT(page_fault)
{
if (HIWORD(*nameA)) HeapFree( GetProcessHeap(), 0, *nameA );
if (HIWORD(*typeA)) HeapFree( GetProcessHeap(), 0, *typeA );
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
__ENDTRY
return TRUE;
}
/* implementation of FindResourceExA */
static HRSRC find_resourceA( HMODULE hModule, LPCSTR type, LPCSTR name, WORD lang )
{
NTSTATUS status;
UNICODE_STRING nameW, typeW;
LDR_RESOURCE_INFO info;
const IMAGE_RESOURCE_DATA_ENTRY *entry = NULL;
__TRY
{
if ((status = get_res_nameA( name, &nameW )) != STATUS_SUCCESS) goto done;
if ((status = get_res_nameA( type, &typeW )) != STATUS_SUCCESS) goto done;
info.Type = (ULONG)typeW.Buffer;
info.Name = (ULONG)nameW.Buffer;
info.Language = lang;
status = LdrFindResource_U( hModule, &info, 3, &entry );
done:
if (status != STATUS_SUCCESS) SetLastError( RtlNtStatusToDosError(status) );
}
__EXCEPT(page_fault)
{
SetLastError( ERROR_INVALID_PARAMETER );
}
__ENDTRY
if (HIWORD(nameW.Buffer)) HeapFree( GetProcessHeap(), 0, nameW.Buffer );
if (HIWORD(typeW.Buffer)) HeapFree( GetProcessHeap(), 0, typeW.Buffer );
return (HRSRC)entry;
}
/* implementation of FindResourceExW */
static HRSRC find_resourceW( HMODULE hModule, LPCWSTR type, LPCWSTR name, WORD lang )
{
NTSTATUS status;
UNICODE_STRING nameW, typeW;
LDR_RESOURCE_INFO info;
const IMAGE_RESOURCE_DATA_ENTRY *entry = NULL;
nameW.Buffer = typeW.Buffer = NULL;
__TRY
{
if ((status = get_res_nameW( name, &nameW )) != STATUS_SUCCESS) goto done;
if ((status = get_res_nameW( type, &typeW )) != STATUS_SUCCESS) goto done;
info.Type = (ULONG)typeW.Buffer;
info.Name = (ULONG)nameW.Buffer;
info.Language = lang;
status = LdrFindResource_U( hModule, &info, 3, &entry );
done:
if (status != STATUS_SUCCESS) SetLastError( RtlNtStatusToDosError(status) );
}
__EXCEPT(page_fault)
{
SetLastError( ERROR_INVALID_PARAMETER );
}
__ENDTRY
if (HIWORD(nameW.Buffer)) HeapFree( GetProcessHeap(), 0, nameW.Buffer );
if (HIWORD(typeW.Buffer)) HeapFree( GetProcessHeap(), 0, typeW.Buffer );
return (HRSRC)entry;
}
/**********************************************************************
* FindResourceExA (KERNEL32.@)
*/
HRSRC WINAPI FindResourceExA( HMODULE hModule, LPCSTR type, LPCSTR name, WORD lang )
{
TRACE( "%p %s %s %04x\n", hModule, debugstr_a(type), debugstr_a(name), lang );
if (!hModule) hModule = GetModuleHandleW(0);
@ -105,19 +206,7 @@ HRSRC WINAPI FindResourceExA( HMODULE hModule, LPCSTR type, LPCSTR name, WORD la
{
return HRSRC_32( FindResource16( HMODULE_16(hModule), name, type ) );
}
nameW.Buffer = typeW.Buffer = NULL;
if ((status = get_res_nameA( name, &nameW )) != STATUS_SUCCESS) goto done;
if ((status = get_res_nameA( type, &typeW )) != STATUS_SUCCESS) goto done;
info.Type = (ULONG)typeW.Buffer;
info.Name = (ULONG)nameW.Buffer;
info.Language = lang;
status = LdrFindResource_U( hModule, &info, 3, &entry );
done:
if (HIWORD(nameW.Buffer)) HeapFree( GetProcessHeap(), 0, nameW.Buffer );
if (HIWORD(typeW.Buffer)) HeapFree( GetProcessHeap(), 0, typeW.Buffer );
if (status != STATUS_SUCCESS) SetLastError( RtlNtStatusToDosError(status) );
return (HRSRC)entry;
return find_resourceA( hModule, type, name, lang );
}
@ -135,11 +224,6 @@ HRSRC WINAPI FindResourceA( HMODULE hModule, LPCSTR name, LPCSTR type )
*/
HRSRC WINAPI FindResourceExW( HMODULE hModule, LPCWSTR type, LPCWSTR name, WORD lang )
{
NTSTATUS status;
UNICODE_STRING nameW, typeW;
LDR_RESOURCE_INFO info;
const IMAGE_RESOURCE_DATA_ENTRY *entry = NULL;
TRACE( "%p %s %s %04x\n", hModule, debugstr_w(type), debugstr_w(name), lang );
if (!hModule) hModule = GetModuleHandleW(0);
@ -148,21 +232,7 @@ HRSRC WINAPI FindResourceExW( HMODULE hModule, LPCWSTR type, LPCWSTR name, WORD
LPSTR nameA, typeA;
HRSRC16 ret;
if (HIWORD(name))
{
DWORD len = WideCharToMultiByte( CP_ACP, 0, name, -1, NULL, 0, NULL, NULL );
nameA = HeapAlloc( GetProcessHeap(), 0, len );
if (nameA) WideCharToMultiByte( CP_ACP, 0, name, -1, nameA, len, NULL, NULL );
}
else nameA = (LPSTR)name;
if (HIWORD(type))
{
DWORD len = WideCharToMultiByte( CP_ACP, 0, type, -1, NULL, 0, NULL, NULL );
typeA = HeapAlloc( GetProcessHeap(), 0, len );
if (typeA) WideCharToMultiByte( CP_ACP, 0, type, -1, typeA, len, NULL, NULL );
}
else typeA = (LPSTR)type;
if (!get_res_name_type_WtoA( name, type, &nameA, &typeA )) return NULL;
ret = FindResource16( HMODULE_16(hModule), nameA, typeA );
if (HIWORD(nameA)) HeapFree( GetProcessHeap(), 0, nameA );
@ -170,18 +240,7 @@ HRSRC WINAPI FindResourceExW( HMODULE hModule, LPCWSTR type, LPCWSTR name, WORD
return HRSRC_32(ret);
}
nameW.Buffer = typeW.Buffer = NULL;
if ((status = get_res_nameW( name, &nameW )) != STATUS_SUCCESS) goto done;
if ((status = get_res_nameW( type, &typeW )) != STATUS_SUCCESS) goto done;
info.Type = (ULONG)typeW.Buffer;
info.Name = (ULONG)nameW.Buffer;
info.Language = lang;
status = LdrFindResource_U( hModule, &info, 3, &entry );
done:
if (HIWORD(nameW.Buffer)) HeapFree( GetProcessHeap(), 0, nameW.Buffer );
if (HIWORD(typeW.Buffer)) HeapFree( GetProcessHeap(), 0, typeW.Buffer );
if (status != STATUS_SUCCESS) SetLastError( RtlNtStatusToDosError(status) );
return (HRSRC)entry;
return find_resourceW( hModule, type, name, lang );
}