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[hb-subset] Report "Invalid font file."

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Fixes https://github.com/harfbuzz/harfbuzz/issues/4824#issuecomment-2272156543
This commit is contained in:
Behdad Esfahbod 2024-08-06 15:15:41 -06:00
parent 84f165646e
commit d5596dfb0b
1 changed files with 2 additions and 0 deletions
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2
util/hb-subset.cc
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@ -128,6 +128,8 @@ struct subset_main_t : option_parser_t, face_options_t, output_options_t<false>
write_file (output_file, result);
hb_blob_destroy (result);
}
else if (hb_face_get_glyph_count (orig_face) == 0)
fail (false, "Invalid font file.");
hb_face_destroy (new_face);
if (preprocess)