minetest/minetestmapper
1
0
Fork 0
mirror of https://github.com/minetest/minetestmapper.git synced 2025-04-16 17:40:35 +02:00
Code Issues Projects Releases Wiki Activity

Fix broken buffer handling in ZlibDecompressor

Browse Source 
40a5e16e21ba9a0663fc93919291c1bf0e5c2e3a added the broken reserve() call
and only by chance did 0a56b18cfbb583649bdbc7f0a379df5d63ea2880 not break
it further because I forgot to remove the unconditional resize().

I should read my own code changes more often.
This commit is contained in:
sfan5 2025-04-07 23:20:08 +02:00
parent 314debe4fb
commit 9367e45e66
2 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/ZlibDecompressor.cpp
View File

@ -48,16 +48,17 @@ void ZlibDecompressor::decompress(ustring &buffer)
strm.next_in = const_cast<unsigned char *>(data);
strm.avail_in = size;
buffer.resize(BUFSIZE);
if (buffer.empty())
buffer.resize(BUFSIZE);
strm.next_out = &buffer[0];
strm.avail_out = BUFSIZE;
strm.avail_out = buffer.size();
int ret = 0;
do {
ret = Z(inflate)(&strm, Z_NO_FLUSH);
if (strm.avail_out == 0) {
const auto off = buffer.size();
buffer.reserve(off + BUFSIZE);
buffer.resize(off + BUFSIZE);
strm.next_out = &buffer[off];
strm.avail_out = BUFSIZE;
}

3
src/ZstdDecompressor.cpp
View File

@ -29,7 +29,8 @@ void ZstdDecompressor::decompress(ustring &buffer)
// output space is extended in chunks of this size
constexpr size_t BUFSIZE = 8 * 1024;
buffer.resize(BUFSIZE);
if (buffer.empty())
buffer.resize(BUFSIZE);
ZSTD_outBuffer outbuf = { &buffer[0], buffer.size(), 0 };
ZSTD_initDStream(stream);