diff options
Diffstat (limited to 'Build/source/texk/lcdf-typetools/libefont/otfpost.cc')
-rw-r--r-- | Build/source/texk/lcdf-typetools/libefont/otfpost.cc | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/Build/source/texk/lcdf-typetools/libefont/otfpost.cc b/Build/source/texk/lcdf-typetools/libefont/otfpost.cc index 1497f98f059..a217576ef6b 100644 --- a/Build/source/texk/lcdf-typetools/libefont/otfpost.cc +++ b/Build/source/texk/lcdf-typetools/libefont/otfpost.cc @@ -140,10 +140,16 @@ Post::parse_header(ErrorHandler *errh) const uint8_t *gni = data + HEADER_SIZE + 2; const uint8_t *names = gni + 2 * _nglyphs; int next_name = N_MAC_GLYPHS, g; + bool gni_error_reported = false; for (int i = 0; i < _nglyphs; i++, gni += 2) - if ((g = USHORT_AT(gni)) >= 32768) - return errh->error("bad glyph name index in post"), -EINVAL; - else + // Some fonts have more than 32768 glyphs. Although the 'post' + // spec says name indexes 32768-65535 are reserved, some large + // fonts treat those indexes as valid. + if ((g = USHORT_AT(gni)) >= 32768 && g >= _nglyphs) { + if (!gni_error_reported) + errh->error("bad glyph name index in post"); + gni_error_reported = true; + } else while (g >= next_name) { if (names - data > len || (names + 1 + names[0]) - data > len) |