librpc/ndr: Use correct value for max compression size

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

diff --git a/librpc/ndr/ndr_compression.c b/librpc/ndr/ndr_compression.c
index 41328ea499cfa75541f644d991dd45d5232ff079..f6185b2ac86cd1a4ba0ec65a4cce7a646eaee930 100644 (file)
--- a/librpc/ndr/ndr_compression.c
+++ b/librpc/ndr/ndr_compression.c
@@ -175,7 +175,11 @@ static enum ndr_err_code ndr_push_compression_mszip_chunk(struct ndr_push *ndrpu
        uint32_t plain_chunk_size;
        uint32_t plain_chunk_offset;
        uint32_t max_plain_size = 0x00008000;
-       uint32_t max_comp_size = 0x00008000 + 2 + 12 /*TODO: what value do we really need here?*/;
+       /*
+        * The maximum compressed size of each MSZIP block is 32k + 12 bytes
+        * header size.
+        */
+       uint32_t max_comp_size = 0x00008000 + 12;
        uint32_t tmp_offset;
        int z_ret;
 
@@ -208,7 +212,7 @@ static enum ndr_err_code ndr_push_compression_mszip_chunk(struct ndr_push *ndrpu
        z->total_in     = 0;
 
        z->next_out     = comp_chunk.data + 2;
-       z->avail_out    = comp_chunk.length - 2;
+       z->avail_out    = comp_chunk.length;
        z->total_out    = 0;
 
        if (!z->opaque) {