sendmsg.c revision 55682
155682Smarkm/* 255682Smarkm * Copyright (c) 1995, 1996, 1997, 1998, 1999 Kungliga Tekniska H�gskolan 355682Smarkm * (Royal Institute of Technology, Stockholm, Sweden). 455682Smarkm * All rights reserved. 555682Smarkm * 655682Smarkm * Redistribution and use in source and binary forms, with or without 755682Smarkm * modification, are permitted provided that the following conditions 855682Smarkm * are met: 955682Smarkm * 1055682Smarkm * 1. Redistributions of source code must retain the above copyright 1155682Smarkm * notice, this list of conditions and the following disclaimer. 1255682Smarkm * 1355682Smarkm * 2. Redistributions in binary form must reproduce the above copyright 1455682Smarkm * notice, this list of conditions and the following disclaimer in the 1555682Smarkm * documentation and/or other materials provided with the distribution. 1655682Smarkm * 1755682Smarkm * 3. Neither the name of the Institute nor the names of its contributors 1855682Smarkm * may be used to endorse or promote products derived from this software 1955682Smarkm * without specific prior written permission. 2055682Smarkm * 2155682Smarkm * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 2255682Smarkm * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2355682Smarkm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2455682Smarkm * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 2555682Smarkm * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2655682Smarkm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2755682Smarkm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2855682Smarkm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2955682Smarkm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3055682Smarkm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3155682Smarkm * SUCH DAMAGE. 3255682Smarkm */ 3355682Smarkm 3455682Smarkm#ifdef HAVE_CONFIG_H 3555682Smarkm#include <config.h> 3655682SmarkmRCSID("$Id: sendmsg.c,v 1.4 1999/12/02 16:58:52 joda Exp $"); 3755682Smarkm#endif 3855682Smarkm 3955682Smarkm#include "roken.h" 4055682Smarkm 4155682Smarkmssize_t 4255682Smarkmsendmsg(int s, const struct msghdr *msg, int flags) 4355682Smarkm{ 4455682Smarkm ssize_t ret; 4555682Smarkm size_t tot = 0; 4655682Smarkm int i; 4755682Smarkm char *buf, *p; 4855682Smarkm struct iovec *iov = msg->msg_iov; 4955682Smarkm 5055682Smarkm for(i = 0; i < msg->msg_iovlen; ++i) 5155682Smarkm tot += iov[i].iov_len; 5255682Smarkm buf = malloc(tot); 5355682Smarkm if (tot != 0 && buf == NULL) { 5455682Smarkm errno = ENOMEM; 5555682Smarkm return -1; 5655682Smarkm } 5755682Smarkm p = buf; 5855682Smarkm for (i = 0; i < msg->msg_iovlen; ++i) { 5955682Smarkm memcpy (p, iov[i].iov_base, iov[i].iov_len); 6055682Smarkm p += iov[i].iov_len; 6155682Smarkm } 6255682Smarkm ret = sendto (s, buf, tot, flags, msg->msg_name, msg->msg_namelen); 6355682Smarkm free (buf); 6455682Smarkm return ret; 6555682Smarkm} 66