Fix oversize writes to write to correct area of disk

Oversize writes were not incrementing the seek location for
writes. This could cause disk corruption.

diff --git a/nbd-server.c b/nbd-server.c
index d57120b..41b847a 100644 (file)
--- a/nbd-server.c
+++ b/nbd-server.c
@@ -1576,6 +1576,7 @@ int mainloop(CLIENT *client) {
                                        continue;
                                }
                                len -= currlen;
+                               request.from += currlen;
                                currlen = (len < BUFSIZE) ? len : BUFSIZE;
                        }
                        SEND(client->net, reply);