- int r = sendto(sock,(const char *)evbuffer_pullup(evb, length),length,0,
- (struct sockaddr*)&(addr.addr),addr_len);
+ struct iovec iov[1];
+ struct msghdr msg;
+ memset(&msg, 0, sizeof(msg));
+ memset(&iov, 0, sizeof(iov));
+ iov[0].iov_base = evbuffer_pullup(evb, length);
+ iov[0].iov_len = length;
+ msg.msg_iov = iov;
+ msg.msg_iovlen = 1;
+ msg.msg_name = addr.addr;
+ msg.msg_namelen = addr_len;
+ int r = sendmsg(sock, &msg, 0);