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[face] Avoid edit-sanitizing in hb_face_count()

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This commit is contained in:
Behdad Esfahbod 2025-03-10 21:13:07 -06:00
parent e4fe8bf95e
commit 8ca9fe7617
1 changed files with 7 additions and 7 deletions
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14
src/hb-face.cc
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@ -79,14 +79,14 @@ hb_face_count (hb_blob_t *blob)
if (unlikely (!blob))
return 0;
/* TODO We shouldn't be sanitizing blob. Port to run sanitizer and return if not sane. */
/* Make API signature const after. */
hb_blob_t *sanitized = hb_sanitize_context_t ().sanitize_blob<OT::OpenTypeFontFile> (hb_blob_reference (blob));
const OT::OpenTypeFontFile& ot = *sanitized->as<OT::OpenTypeFontFile> ();
unsigned int ret = ot.get_face_count ();
hb_blob_destroy (sanitized);
hb_sanitize_context_t c (blob);
return ret;
const char *start = hb_blob_get_data (blob, nullptr);
auto *ot = reinterpret_cast<OT::OpenTypeFontFile *> (const_cast<char *> (start));
if (unlikely (!ot->sanitize (&c)))
return 0;
return ot->get_face_count ();
}
/*