Don't special-case a zero-sized compression.

zlib actually writes a header for that case, and while ignoring that
header will get us the right data, it will also end up messing up our
stream position.  So we actually want zlib to "uncompress" even an empty
object.

diff --git a/unpack-objects.c b/unpack-objects.c
index 97d268187497b2ab92e13a656894380b97564469..6383db94acc26ed3dc7f1c55abeef06db866d2c7 100644 (file)
--- a/unpack-objects.c
+++ b/unpack-objects.c
@@ -55,8 +55,6 @@ static void *get_data(unsigned long size)
        z_stream stream;
        void *buf = xmalloc(size);
 
-       if (!size)
-               return buf;
        memset(&stream, 0, sizeof(stream));
 
        stream.next_out = buf;