1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #if !defined(lint) && defined(SCCSIDS) 30*0Sstevel@tonic-gate static char sccsid[] = "@(#)rpc_td.c 1.32 89/03/16 Copyr 1988 Sun Micro"; 31*0Sstevel@tonic-gate #endif 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #include "mt.h" 34*0Sstevel@tonic-gate #include "rpc_mt.h" 35*0Sstevel@tonic-gate #include <stdio.h> 36*0Sstevel@tonic-gate #include <rpc/rpc.h> 37*0Sstevel@tonic-gate #include <rpc/trace.h> 38*0Sstevel@tonic-gate #include <errno.h> 39*0Sstevel@tonic-gate #include <tiuser.h> 40*0Sstevel@tonic-gate #include <string.h> 41*0Sstevel@tonic-gate #include <stropts.h> 42*0Sstevel@tonic-gate #include <netinet/tcp.h> 43*0Sstevel@tonic-gate #include <stdlib.h> 44*0Sstevel@tonic-gate 45*0Sstevel@tonic-gate #define MAXOPTSIZE 64 46*0Sstevel@tonic-gate 47*0Sstevel@tonic-gate int 48*0Sstevel@tonic-gate __td_setnodelay(fd) 49*0Sstevel@tonic-gate int fd; 50*0Sstevel@tonic-gate { 51*0Sstevel@tonic-gate int rval = 0; 52*0Sstevel@tonic-gate static mutex_t td_opt_lock = DEFAULTMUTEX; 53*0Sstevel@tonic-gate static struct t_optmgmt t_optreq, t_optret; 54*0Sstevel@tonic-gate int state; 55*0Sstevel@tonic-gate 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate /* VARIABLES PROTECTED BY td_opt_lock: t_optreq, t_optret */ 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate trace2(TR__td_setnodelay, 0, fd); 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate if ((state = t_getstate(fd)) == -1) 62*0Sstevel@tonic-gate return (-1); 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate mutex_lock(&td_opt_lock); 65*0Sstevel@tonic-gate if ((state == T_IDLE) && (t_optreq.flags != T_NEGOTIATE)) { 66*0Sstevel@tonic-gate int i = 1; 67*0Sstevel@tonic-gate struct opthdr *opt; 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate t_optreq.flags = T_NEGOTIATE; 70*0Sstevel@tonic-gate t_optreq.opt.maxlen = MAXOPTSIZE; 71*0Sstevel@tonic-gate t_optreq.opt.buf = (char *)malloc(MAXOPTSIZE); 72*0Sstevel@tonic-gate if (t_optreq.opt.buf == NULL) { 73*0Sstevel@tonic-gate mutex_unlock(&td_opt_lock); 74*0Sstevel@tonic-gate t_errno = TSYSERR; 75*0Sstevel@tonic-gate return (-1); 76*0Sstevel@tonic-gate } 77*0Sstevel@tonic-gate opt = (struct opthdr *)(t_optreq.opt.buf); 78*0Sstevel@tonic-gate opt->name = TCP_NODELAY; 79*0Sstevel@tonic-gate opt->len = 4; 80*0Sstevel@tonic-gate opt->level = IPPROTO_TCP; 81*0Sstevel@tonic-gate (void) memcpy((caddr_t)(t_optreq.opt.buf + 82*0Sstevel@tonic-gate sizeof (struct opthdr)), &i, sizeof (int)); 83*0Sstevel@tonic-gate t_optreq.opt.len = (int)(sizeof (struct opthdr) + 84*0Sstevel@tonic-gate sizeof (int)); 85*0Sstevel@tonic-gate 86*0Sstevel@tonic-gate t_optret.opt.maxlen = MAXOPTSIZE; 87*0Sstevel@tonic-gate t_optret.opt.len = 0; 88*0Sstevel@tonic-gate t_optret.opt.buf = (char *)malloc(MAXOPTSIZE); 89*0Sstevel@tonic-gate if (t_optret.opt.buf == NULL) { 90*0Sstevel@tonic-gate mutex_unlock(&td_opt_lock); 91*0Sstevel@tonic-gate free(t_optreq.opt.buf); 92*0Sstevel@tonic-gate t_errno = TSYSERR; 93*0Sstevel@tonic-gate return (-1); 94*0Sstevel@tonic-gate } 95*0Sstevel@tonic-gate } 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate if (state == T_IDLE) 98*0Sstevel@tonic-gate rval = t_optmgmt(fd, &t_optreq, &t_optret); 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate mutex_unlock(&td_opt_lock); 101*0Sstevel@tonic-gate trace2(TR__td_setnodelay, 1, fd); 102*0Sstevel@tonic-gate return (rval); 103*0Sstevel@tonic-gate } 104