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Wrap an exception handler around FindResource.

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Richard Cohen 2000-04-16 20:27:51 +00:00 committed by Alexandre Julliard
parent 72e1be10ea
commit c775e1ec7f
1 changed files with 95 additions and 67 deletions
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162
loader/resource.c
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@ -18,6 +18,7 @@
#include "winuser.h"
#include "wine/winbase16.h"
#include "wine/winuser16.h"
#include "wine/exception.h"
#include "ldt.h"
#include "global.h"
#include "heap.h"
@ -124,84 +125,111 @@ static WORD MapHRsrc16ToType( NE_MODULE *pModule, HRSRC16 hRsrc16 )
}
/* filter for page-fault exceptions */
static WINE_EXCEPTION_FILTER(page_fault)
{
if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
return EXCEPTION_EXECUTE_HANDLER;
return EXCEPTION_CONTINUE_SEARCH;
}
static HRSRC RES_FindResource2( HMODULE hModule, LPCSTR type,
LPCSTR name, WORD lang,
BOOL bUnicode, BOOL bRet16 )
{
HRSRC hRsrc = 0;
HMODULE16 hMod16 = MapHModuleLS( hModule );
NE_MODULE *pModule = NE_GetPtr( hMod16 );
WINE_MODREF *wm = pModule && pModule->module32?
MODULE32_LookupHMODULE( pModule->module32 ) : NULL;
TRACE("(%08x %s, %08x%s, %08x%s, %04x, %s, %s)\n",
hModule,
pModule ? (char *)NE_MODULE_NAME(pModule) : "NULL dereference",
(UINT)type, HIWORD(type)? (bUnicode? debugstr_w((LPWSTR)type) : debugstr_a(type)) : "",
(UINT)name, HIWORD(name)? (bUnicode? debugstr_w((LPWSTR)name) : debugstr_a(name)) : "",
lang,
bUnicode? "W" : "A",
bRet16? "NE" : "PE" );
if (pModule)
{
if ( wm )
{
/* 32-bit PE module */
LPWSTR typeStr, nameStr;
if ( HIWORD( type ) && !bUnicode )
typeStr = HEAP_strdupAtoW( GetProcessHeap(), 0, type );
else
typeStr = (LPWSTR)type;
if ( HIWORD( name ) && !bUnicode )
nameStr = HEAP_strdupAtoW( GetProcessHeap(), 0, name );
else
nameStr = (LPWSTR)name;
hRsrc = PE_FindResourceExW( wm, nameStr, typeStr, lang );
if ( HIWORD( type ) && !bUnicode )
HeapFree( GetProcessHeap(), 0, typeStr );
if ( HIWORD( name ) && !bUnicode )
HeapFree( GetProcessHeap(), 0, nameStr );
/* If we need to return 16-bit HRSRC, perform conversion */
if ( bRet16 )
hRsrc = MapHRsrc32To16( pModule, hRsrc,
HIWORD( type )? 0 : LOWORD( type ) );
}
else
{
/* 16-bit NE module */
LPSTR typeStr, nameStr;
if ( HIWORD( type ) && bUnicode )
typeStr = HEAP_strdupWtoA( GetProcessHeap(), 0, (LPCWSTR)type );
else
typeStr = (LPSTR)type;
if ( HIWORD( name ) && bUnicode )
nameStr = HEAP_strdupWtoA( GetProcessHeap(), 0, (LPCWSTR)name );
else
nameStr = (LPSTR)name;
hRsrc = NE_FindResource( pModule, nameStr, typeStr );
if ( HIWORD( type ) && bUnicode )
HeapFree( GetProcessHeap(), 0, typeStr );
if ( HIWORD( name ) && bUnicode )
HeapFree( GetProcessHeap(), 0, nameStr );
/* If we need to return 32-bit HRSRC, no conversion is necessary,
we simply use the 16-bit HRSRC as 32-bit HRSRC */
}
}
return hRsrc;
}
/**********************************************************************
* RES_FindResource
*/
static HRSRC RES_FindResource( HMODULE hModule, LPCSTR type,
LPCSTR name, WORD lang,
BOOL bUnicode, BOOL bRet16 )
{
HRSRC hRsrc = 0;
HMODULE16 hMod16 = MapHModuleLS( hModule );
NE_MODULE *pModule = NE_GetPtr( hMod16 );
WINE_MODREF *wm = pModule && pModule->module32?
MODULE32_LookupHMODULE( pModule->module32 ) : NULL;
TRACE("(%08x %s, %08x%s, %08x%s, %04x, %s, %s)\n",
hModule,
pModule ? (char *)NE_MODULE_NAME(pModule) : "NULL dereference",
(UINT)type, HIWORD(type)? (bUnicode? debugstr_w((LPWSTR)type) : debugstr_a(type)) : "",
(UINT)name, HIWORD(name)? (bUnicode? debugstr_w((LPWSTR)name) : debugstr_a(name)) : "",
lang,
bUnicode? "W" : "A",
bRet16? "NE" : "PE" );
if ( !pModule ) return 0;
if ( wm )
HRSRC hRsrc;
__TRY
{
/* 32-bit PE module */
LPWSTR typeStr, nameStr;
if ( HIWORD( type ) && !bUnicode )
typeStr = HEAP_strdupAtoW( GetProcessHeap(), 0, type );
else
typeStr = (LPWSTR)type;
if ( HIWORD( name ) && !bUnicode )
nameStr = HEAP_strdupAtoW( GetProcessHeap(), 0, name );
else
nameStr = (LPWSTR)name;
hRsrc = PE_FindResourceExW( wm, nameStr, typeStr, lang );
if ( HIWORD( type ) && !bUnicode )
HeapFree( GetProcessHeap(), 0, typeStr );
if ( HIWORD( name ) && !bUnicode )
HeapFree( GetProcessHeap(), 0, nameStr );
/* If we need to return 16-bit HRSRC, perform conversion */
if ( bRet16 )
hRsrc = MapHRsrc32To16( pModule, hRsrc,
HIWORD( type )? 0 : LOWORD( type ) );
hRsrc = RES_FindResource2(hModule, type, name, lang, bUnicode, bRet16);
}
else
__EXCEPT(page_fault)
{
/* 16-bit NE module */
LPSTR typeStr, nameStr;
if ( HIWORD( type ) && bUnicode )
typeStr = HEAP_strdupWtoA( GetProcessHeap(), 0, (LPCWSTR)type );
else
typeStr = (LPSTR)type;
if ( HIWORD( name ) && bUnicode )
nameStr = HEAP_strdupWtoA( GetProcessHeap(), 0, (LPCWSTR)name );
else
nameStr = (LPSTR)name;
hRsrc = NE_FindResource( pModule, nameStr, typeStr );
if ( HIWORD( type ) && bUnicode )
HeapFree( GetProcessHeap(), 0, typeStr );
if ( HIWORD( name ) && bUnicode )
HeapFree( GetProcessHeap(), 0, nameStr );
/* If we need to return 32-bit HRSRC, no conversion is necessary,
we simply use the 16-bit HRSRC as 32-bit HRSRC */
WARN("page fault\n");
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
__ENDTRY
return hRsrc;
}