Show usage string for 'git get-tar-commit-id -h'

diff --git a/sha1_file.c b/sha1_file.c
index 4ea0b18d0aaeca48ed75ed21863195c5ce830cbc..63981fb3fd9cfa6cca4126eba5a964b449c62444 100644 (file)
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -1587,13 +1587,15 @@ static void *unpack_compressed_entry(struct packed_git *p,
        buffer[size] = 0;
        memset(&stream, 0, sizeof(stream));
        stream.next_out = buffer;
-       stream.avail_out = size;
+       stream.avail_out = size + 1;
 
        git_inflate_init(&stream);
        do {
                in = use_pack(p, w_curs, curpos, &stream.avail_in);
                stream.next_in = in;
                st = git_inflate(&stream, Z_FINISH);
+               if (!stream.avail_out)
+                       break; /* the payload is larger than it should be */
                curpos += stream.next_in - in;
        } while (st == Z_OK || st == Z_BUF_ERROR);
        git_inflate_end(&stream);