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| author | Yann Collet <Cyan4973@users.noreply.github.com> | 2018-09-05 21:07:53 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-09-05 21:07:53 (GMT) |
| commit | dc32009ab1f0a6fca74998f5f3704d269c450aea (patch) | |
| tree | e3e3bc01eb3e85cef21de88a0d87c80ff4dc81c8 /lib | |
| parent | c4dbc37b3ce085a05441124fee4a8144dc149b05 (diff) | |
| parent | 30f6f34328733ec4e74c78c06f667810db0417df (diff) | |
| download | lz4-dc32009ab1f0a6fca74998f5f3704d269c450aea.zip lz4-dc32009ab1f0a6fca74998f5f3704d269c450aea.tar.gz lz4-dc32009ab1f0a6fca74998f5f3704d269c450aea.tar.bz2 | |
Merge pull request #562 from lz4/roundTrip
Round trip test for #560
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/lz4hc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/lz4hc.c b/lib/lz4hc.c index 8108ea0..e913ee7 100644 --- a/lib/lz4hc.c +++ b/lib/lz4hc.c @@ -327,6 +327,8 @@ LZ4HC_InsertAndGetWiderMatch ( if (lookBackLength==0) { /* no back possible */ size_t const maxML = MIN(currentSegmentLength, srcPatternLength); if ((size_t)longest < maxML) { + assert(base + matchIndex < ip); + if (ip - (base+matchIndex) > MAX_DISTANCE) break; assert(maxML < 2 GB); longest = (int)maxML; *matchpos = base + matchIndex; /* virtual pos, relative to ip, to retrieve offset */ @@ -450,6 +452,7 @@ LZ4_FORCE_INLINE int LZ4HC_encodeSequence ( *op += length; /* Encode Offset */ + assert( (*ip - match) <= MAX_DISTANCE ); /* note : consider providing offset as a value, rather than as a pointer difference */ LZ4_writeLE16(*op, (U16)(*ip-match)); *op += 2; /* Encode MatchLength */ |