79 	struct cmsghdr cmsg;  in sendfd()  member
81     } cmsg;  in sendfd()  local
85     bzero(&cmsg, sizeof(cmsg));  in sendfd()
92     msg.msg_control = (caddr_t)&cmsg;  in sendfd()
93     msg.msg_controllen = sizeof(cmsg);  in sendfd()
95     cmsg.cmsg.cmsg_level = SOL_SOCKET;  in sendfd()
96     cmsg.cmsg.cmsg_type = SCM_RIGHTS;  in sendfd()
97     cmsg.cmsg.cmsg_len = sizeof(cmsg);  in sendfd()
98     cmsg.fd = fd;  in sendfd()
111 	struct cmsghdr cmsg;  in recvfd()  member
113     } cmsg;  in recvfd()  local
119     bzero(&cmsg, sizeof(cmsg));  in recvfd()
126     msg.msg_control = (caddr_t)&cmsg;  in recvfd()
127     msg.msg_controllen = sizeof(cmsg);  in recvfd()
130     cmsg.cmsg.cmsg_level = SOL_SOCKET;  in recvfd()
131     cmsg.cmsg.cmsg_type = SCM_RIGHTS;  in recvfd()
133     cmsg.cmsg.cmsg_len = sizeof(cmsg);  in recvfd()
134     cmsg.fd = -1;  in recvfd()
140     return(cmsg.fd);  in recvfd()