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CODE128: fix not handling FNC1 at end of data when in manual

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switching mode or any FNC1 after manual C mode selected and no
  other non-C data - found by fuzz test "fuzz_data" - 2nd ever
  trophy!
qr.h: fix typo (props https://github.com/crate-ci/typos)
This commit is contained in:
gitlost
2026-01-12 20:38:15 +00:00
parent a718c79237
commit 6e533c7a0a
8 changed files with 158 additions and 41 deletions
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backend/tests/fuzz/fuzz_data_seed_corpus.zip
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backend/tests/fuzz/gen_corpora.c
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@@ -14,7 +14,7 @@
/* NOLINTEND(clang-diagnostic-comment) */
/*
libzint - the open source barcode library
Copyright (C) 2024-2025 Robin Stuart <rstuart114@gmail.com>
Copyright (C) 2024-2026 Robin Stuart <rstuart114@gmail.com>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
@@ -866,6 +866,15 @@ static const struct item data_data[] = {
/* 40*/ { 6, BARCODE_DOTCODE, -1, -1, -1, -1, -1, "\237", -1 }, /* As above L1090 */
/* 41*/ { 0, BARCODE_MAXICODE, -1, -1, -1, -1, -1, "\223\223\223\223\223\200\000\060\060\020\122\104\060\343\000\000\040\104\104\104\104\177\377\040\000\324\336\000\000\000\000\104\060\060\060\060\104\104\104\104\104\104\104\104\104\104\104\104\104\104\104\104\104\104\104\104\104\104\104\104\104\104\104\060\104\104\000\000\000\040\104\104\104\104\177\377\377\377\324\336\000\000\000\000\104\377\104\001\104\104\104\104\104\104\233\233\060\060\060\060\060\060\060\060\060\325\074", 107 }, /* #181 Nico Gunkel OSS-Fuzz - original OSS-Fuzz triggering data */
/* 42*/ { 1, BARCODE_MAXICODE, -1, -1, -1, -1, -1, "AaAaAaAaAaAaAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA123456789", -1 }, /* Add 6 lowercase a's so 6 SHIFTS inserted so 6 + 138 (max input len) = 144 and numbers come at end of buffer */
/* 43*/ { 0, BARCODE_CODE128, DATA_MODE | EXTRA_ESCAPE_MODE, -1, -1, -1, -1,
"\003\134\136\103\103\103\103\103\103\103\103\103\103\103\103\103\103\103\103\103\103\000\000\051\000\054\103\103\103\377\377\377"
"\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377"
"\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\242\053\134\136\061\067\242\242\242\242\242"
"\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242"
"\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242\242"
"\136\136",
162
}, /* fuzz_data (1st) */
};
/* GS1_MODE data */