HelenOS sources

RCV_BUF_SIZE      135 uspace/srv/net/tcp/conn.c 	conn->rcv_buf_size = RCV_BUF_SIZE;
RCV_BUF_SIZE       53 uspace/srv/net/tcp/test.c 	char rcv_buf[RCV_BUF_SIZE + 1];
RCV_BUF_SIZE       73 uspace/srv/net/tcp/test.c 		tcp_uc_receive(conn, rcv_buf, RCV_BUF_SIZE, &rcvd, &xflags);
HelenOS homepage, sources at GitHub