/* Load the basic TrueType tables, i.e., tables that can be either in */
/* TTF or OTF fonts (body). */
/* */
-/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by */
+/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */
+/* 2010 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
{
/* For compatibility with Windows, we consider */
/* zero-length tables the same as missing tables. */
- if ( entry->Tag == tag ) {
+ if ( entry->Tag == tag )
+ {
if ( entry->Length != 0 )
{
FT_TRACE4(( "found table.\n" ));
entry = face->dir_tables;
+ FT_TRACE2(( "\n"
+ " tag offset length checksum\n"
+ " ----------------------------------\n" ));
+
for ( nn = 0; nn < sfnt.num_tables; nn++ )
{
entry->Tag = FT_GET_TAG4();
continue;
else
{
- FT_TRACE2(( " %c%c%c%c - %08lx - %08lx\n",
+ FT_TRACE2(( " %c%c%c%c %08lx %08lx %08lx\n",
(FT_Char)( entry->Tag >> 24 ),
(FT_Char)( entry->Tag >> 16 ),
(FT_Char)( entry->Tag >> 8 ),
(FT_Char)( entry->Tag ),
entry->Offset,
- entry->Length ));
+ entry->Length,
+ entry->CheckSum ));
entry++;
}
}
/* broken fonts like `Keystrokes MT' :-( */
/* */
/* We allocate 64 function entries by default when */
- /* the maxFunctionDefs field is null. */
+ /* the maxFunctionDefs value is smaller. */
- if ( maxProfile->maxFunctionDefs == 0 )
+ if ( maxProfile->maxFunctionDefs < 64 )
maxProfile->maxFunctionDefs = 64;
/* we add 4 phantom points later */
maxProfile->maxTwilightPoints = 0xFFFFU - 4;
}
+
+ /* we arbitrarily limit recursion to avoid stack exhaustion */
+ if ( maxProfile->maxComponentDepth > 100 )
+ {
+ FT_TRACE0(( "tt_face_load_maxp:"
+ " abnormally large component depth (%d) set to 100\n",
+ maxProfile->maxComponentDepth ));
+ maxProfile->maxComponentDepth = 100;
+ }
}
FT_TRACE3(( "numGlyphs: %u\n", maxProfile->numGlyphs ));