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plugin/lz4: Fixed corner case issues

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git-svn-id: svn://ultimatepp.org/upp/trunk@10014 f0d560ea-af0d-0410-9eb7-867de7ffcac7
This commit is contained in:
cxl 2016-07-06 08:26:06 +00:00
parent be3f64361b
commit 34fba411d7
1 changed files with 9 additions and 8 deletions
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17
uppsrc/plugin/lz4/lz4upp.cpp
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@ -189,10 +189,11 @@ void Lz4::Put(const void *ptr_, int size)
else {
int count = Peek32le(~buffer);
int len = count & 0x7fffffff;
if(len > maxblock)
if(len > maxblock) {
error = true;
else
if(count == 0) {
break;
}
if(count == 0) { // reached the end
int need = 4 - pos + 4;
if(size >= need) { // we have enough data for final checksum
memcpy(~buffer + pos, ptr, need);
@ -203,6 +204,7 @@ void Lz4::Put(const void *ptr_, int size)
size -= need;
ptr += need;
pos = 0;
return; // decompression completed
}
}
else {
@ -230,13 +232,12 @@ void Lz4::Put(const void *ptr_, int size)
ptr += need;
size -= need;
pos = 0;
}
else {
memcpy(~buffer + pos, ptr, size);
pos += size;
break;
continue;
}
}
memcpy(~buffer + pos, ptr, size);
pos += size;
break;
}
}
}