Fix use of uninitialized afhi->header_len.

[paraslash.git] / dccp_recv.c

diff --git a/dccp_recv.c b/dccp_recv.c
index eeb7c57a71a52ea26cdeb1ee8751939a6b2518f7..07f616657a7db4ca0dfe5b9d318f542c215a18c6 100644 (file)
--- a/dccp_recv.c
+++ b/dccp_recv.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2006-2007 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2006-2008 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -57,17 +57,32 @@ static int dccp_recv_open(struct receiver_node *rn)
 {
        struct private_dccp_recv_data *pdd;
        struct dccp_recv_args_info *conf = rn->conf;
-       int ret = makesock(AF_UNSPEC, IPPROTO_DCCP, 0, conf->host_arg, conf->port_arg);
+       int fd, ret = makesock(AF_UNSPEC, IPPROTO_DCCP, 0, conf->host_arg,
+               conf->port_arg);
 
        if (ret < 0)
                return ret;
-
+       fd = ret;
+       /*
+        * Disable unused CCIDs: the receiver does not send any application
+        * data to the server. By shutting down this unused path we reduce
+        * internal processing costs, as the unused CCIDs (in the kernel) are
+        * then bypassed.
+        */
+       if (shutdown(fd, SHUT_WR) < 0) {
+               ret = -ERRNO_TO_PARA_ERROR(errno);
+               goto err;
+       }
+       ret = mark_fd_nonblocking(fd);
+       if (ret < 0)
+               goto err;
        rn->buf = para_calloc(DCCP_BUFSIZE);
        rn->private_data = pdd = para_calloc(sizeof(struct private_dccp_recv_data));
-
-       pdd->fd = ret;
-       mark_fd_nonblocking(pdd->fd);
+       pdd->fd = fd;
        return 1;
+err:
+       close(fd);
+       return ret;
 }
 
 static void dccp_shutdown(void)