diff options
Diffstat (limited to 'libjava/java/util/zip/GZIPInputStream.java')
| -rw-r--r-- | libjava/java/util/zip/GZIPInputStream.java | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libjava/java/util/zip/GZIPInputStream.java b/libjava/java/util/zip/GZIPInputStream.java index 9eef73eb945..56401639e0c 100644 --- a/libjava/java/util/zip/GZIPInputStream.java +++ b/libjava/java/util/zip/GZIPInputStream.java @@ -230,7 +230,9 @@ public class GZIPInputStream tmp[i] = (byte) eof_read(); } - int header_crc = read4(tmp, 0); + // Be careful to avoid sign extension here; CRC32.getValue() + // returns a long. + long header_crc = read4(tmp, 0) & 0xffffffffL; if (crc.getValue() != header_crc) throw new ZipException("corrupted gzip file - crc mismatch"); int isize = read4(tmp, 4); |
