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path: root/Build/source/texk/web2c/luatexdir/luafontloader/fontforge/fontforge/parsettfatt.c
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Diffstat (limited to 'Build/source/texk/web2c/luatexdir/luafontloader/fontforge/fontforge/parsettfatt.c')
-rw-r--r--Build/source/texk/web2c/luatexdir/luafontloader/fontforge/fontforge/parsettfatt.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/Build/source/texk/web2c/luatexdir/luafontloader/fontforge/fontforge/parsettfatt.c b/Build/source/texk/web2c/luatexdir/luafontloader/fontforge/fontforge/parsettfatt.c
index 8b86752fc20..fa466564027 100644
--- a/Build/source/texk/web2c/luatexdir/luafontloader/fontforge/fontforge/parsettfatt.c
+++ b/Build/source/texk/web2c/luatexdir/luafontloader/fontforge/fontforge/parsettfatt.c
@@ -316,7 +316,10 @@ static uint16 *getClassDefTable(FILE *ttf, int classdef_offset, struct ttfinfo *
} else if ( ftell(ttf)+2*glyphcnt > g_bounds ) {
LogError( _("Class definition sub-table extends beyond end of table\n") );
info->bad_ot = true;
- glyphcnt = (g_bounds-ftell(ttf))/2;
+ if (g_bounds<ftell(ttf))
+ glyphcnt = 0;
+ else
+ glyphcnt = (g_bounds-ftell(ttf))/2;
}
for ( i=0; i<glyphcnt; ++i )
glist[start+i] = getushort(ttf);