/***********************************************************************
* read_xx_header [internal]
*/
static int read_xx_header( HFILE lzfd )
{
IMAGE_DOS_HEADER mzh;
char magic[3];
LZSeek( lzfd, 0, SEEK_SET );
if ( sizeof(mzh) != LZRead( lzfd, (LPSTR)&mzh, sizeof(mzh) ) )
return 0;
if ( mzh.e_magic != IMAGE_DOS_SIGNATURE )
return 0;
LZSeek( lzfd, mzh.e_lfanew, SEEK_SET );
if ( 2 != LZRead( lzfd, magic, 2 ) )
return 0;
LZSeek( lzfd, mzh.e_lfanew, SEEK_SET );
if ( magic[0] == 'N' && magic[1] == 'E' )
return IMAGE_OS2_SIGNATURE;
if ( magic[0] == 'P' && magic[1] == 'E' )
return IMAGE_NT_SIGNATURE;
magic[2] = '\0';
WARN("Can't handle %s files.\n", magic );
return 0;
}
static BOOL get_file_sizes_lz( LPCWSTR source, DWORD *source_size, DWORD *target_size )
{
DWORD size;
BOOL ret = TRUE;
if (source_size)
{
if (!get_file_size( source, &size )) ret = FALSE;
else *source_size = size;
}
if (target_size)
{
INT file;
OFSTRUCT of;
if ((file = LZOpenFileW( (LPWSTR)source, &of, OF_READ )) < 0)
{
ERR("cannot open source file for reading\n");
return FALSE;
}
*target_size = LZSeek( file, 0, 2 );
LZClose( file );
}
return ret;
}
/***********************************************************************
* find_ne_resource [internal]
*/
static BOOL find_ne_resource( HFILE lzfd, LPCSTR typeid, LPCSTR resid,
DWORD *resLen, DWORD *resOff )
{
IMAGE_OS2_HEADER nehd;
NE_TYPEINFO *typeInfo;
NE_NAMEINFO *nameInfo;
DWORD nehdoffset;
LPBYTE resTab;
DWORD resTabSize;
int count;
/* Read in NE header */
nehdoffset = LZSeek( lzfd, 0, SEEK_CUR );
if ( sizeof(nehd) != LZRead( lzfd, (LPSTR)&nehd, sizeof(nehd) ) ) return FALSE;
resTabSize = nehd.ne_restab - nehd.ne_rsrctab;
if ( !resTabSize )
{
TRACE("No resources in NE dll\n" );
return FALSE;
}
/* Read in resource table */
resTab = HeapAlloc( GetProcessHeap(), 0, resTabSize );
if ( !resTab ) return FALSE;
LZSeek( lzfd, nehd.ne_rsrctab + nehdoffset, SEEK_SET );
if ( resTabSize != LZRead( lzfd, (char*)resTab, resTabSize ) )
/***********************************************************************
* LZSeek (LZEXPAND.4)
*/
LONG WINAPI LZSeek16( HFILE16 fd, LONG off, INT16 type )
{
if (IS_LZ_HANDLE(fd)) return LZSeek( fd, off, type );
return _llseek( (HFILE)DosFileHandleToWin32Handle(fd), off, type );
}
