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Possible fix for https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=38309

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This commit is contained in:
Sean Owen 2021-09-09 12:04:56 -05:00
parent 0235f355ff
commit 91a423b050
1 changed files with 5 additions and 2 deletions
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7
core/src/main/java/com/google/zxing/pdf417/decoder/DecodedBitStreamParser.java
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@ -187,9 +187,12 @@ final class DecodedBitStreamParser {
// (See ISO/IEC 15438:2015 Annex H.6) and preserves all info, but some generators (e.g. TEC-IT) write
// the fileId using text compaction, so in those cases the fileId will appear mangled.
StringBuilder fileId = new StringBuilder();
for (int i = 0; codeIndex < codewords[0] && codewords[codeIndex] != MACRO_PDF417_TERMINATOR
&& codewords[codeIndex] != BEGIN_MACRO_PDF417_OPTIONAL_FIELD; i++, codeIndex++) {
while (codeIndex < codewords[0] &&
codeIndex < codewords.length &&
codewords[codeIndex] != MACRO_PDF417_TERMINATOR &&
codewords[codeIndex] != BEGIN_MACRO_PDF417_OPTIONAL_FIELD) {
fileId.append(String.format("%03d", codewords[codeIndex]));
codeIndex++;
}
if (fileId.length() == 0) {
// at least one fileId codeword is required (Annex H.2)