use CMSG_LEN.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@8704 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/ext/socket/socket.c b/ext/socket/socket.c
index 9d254e45fc..68ceb284fe 100644
--- a/ext/socket/socket.c
+++ b/ext/socket/socket.c
@@ -1703,7 +1703,7 @@ unix_send_io(sock, val)
     msg.msg_control = (caddr_t)&cmsg;
     msg.msg_controllen = CMSG_SPACE(sizeof(int));
     msg.msg_flags = 0;
-    cmsg.hdr.cmsg_len = CMSG_SPACE(0) + sizeof(int);
+    cmsg.hdr.cmsg_len = CMSG_LEN(sizeof(int));
     cmsg.hdr.cmsg_level = SOL_SOCKET;
     cmsg.hdr.cmsg_type = SCM_RIGHTS;
     cmsg.fd = fd;
@@ -1778,7 +1778,7 @@ unix_recv_io(argc, argv, sock)
     msg.msg_control = (caddr_t)&cmsg;
     msg.msg_controllen = CMSG_SPACE(sizeof(int));
     msg.msg_flags = 0;
-    cmsg.hdr.cmsg_len = CMSG_SPACE(0) + sizeof(int);
+    cmsg.hdr.cmsg_len = CMSG_LEN(sizeof(int));
     cmsg.hdr.cmsg_level = SOL_SOCKET;
     cmsg.hdr.cmsg_type = SCM_RIGHTS;
     cmsg.fd = -1;