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[uniscribe] Sanitize font file

This commit is contained in:
Behdad Esfahbod 2013-07-22 10:57:05 -04:00
parent 12ff69df21
commit 8b427c78ef
1 changed files with 4 additions and 0 deletions
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4
src/hb-uniscribe.cc
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@ -314,6 +314,8 @@ _hb_rename_font (hb_blob_t *blob, wchar_t *new_name)
* full, PS. All of them point to the same name data with our unique name. * full, PS. All of them point to the same name data with our unique name.
*/ */
blob = OT::Sanitizer<OT::OpenTypeFontFile>::sanitize (blob);
unsigned int length, new_length, name_str_len; unsigned int length, new_length, name_str_len;
const char *orig_sfnt_data = hb_blob_get_data (blob, &length); const char *orig_sfnt_data = hb_blob_get_data (blob, &length);
@ -364,6 +366,8 @@ _hb_rename_font (hb_blob_t *blob, wchar_t *new_name)
unsigned int face_count = file.get_face_count (); unsigned int face_count = file.get_face_count ();
for (unsigned int face_index = 0; face_index < face_count; face_index++) for (unsigned int face_index = 0; face_index < face_count; face_index++)
{ {
/* Note: doing multiple edits (ie. TTC) can be unsafe. There may be
* toe-stepping. But we don't really care. */
const OT::OpenTypeFontFace &face = file.get_face (face_index); const OT::OpenTypeFontFace &face = file.get_face (face_index);
unsigned int index; unsigned int index;
if (face.find_table_index (HB_OT_TAG_name, &index)) if (face.find_table_index (HB_OT_TAG_name, &index))