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Date:      Sun, 1 Jul 2012 16:26:07 +0000 (UTC)
From:      Pawel Jakub Dawidek <pjd@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r237931 - head/sbin/hastd
Message-ID:  <201207011626.q61GQ7AQ011978@svn.freebsd.org>

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Author: pjd
Date: Sun Jul  1 16:26:07 2012
New Revision: 237931
URL: http://svn.freebsd.org/changeset/base/237931

Log:
  Check if there is cmsg at all.
  
  MFC after:	3 days

Modified:
  head/sbin/hastd/proto_common.c

Modified: head/sbin/hastd/proto_common.c
==============================================================================
--- head/sbin/hastd/proto_common.c	Sun Jul  1 15:43:52 2012	(r237930)
+++ head/sbin/hastd/proto_common.c	Sun Jul  1 16:26:07 2012	(r237931)
@@ -181,7 +181,7 @@ proto_descriptor_recv(int sock, int *fdp
 		return (errno);
 
 	cmsg = CMSG_FIRSTHDR(&msg);
-	if (cmsg->cmsg_level != SOL_SOCKET ||
+	if (cmsg == NULL || cmsg->cmsg_level != SOL_SOCKET ||
 	    cmsg->cmsg_type != SCM_RIGHTS) {
 		return (EINVAL);
 	}



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