freebsd-skq/crypto/heimdal/lib/roken/sendmsg.c
2000-01-09 20:58:00 +00:00

66 lines
2.3 KiB
C

/*
* Copyright (c) 1995, 1996, 1997, 1998, 1999 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
RCSID("$Id: sendmsg.c,v 1.4 1999/12/02 16:58:52 joda Exp $");
#endif
#include "roken.h"
ssize_t
sendmsg(int s, const struct msghdr *msg, int flags)
{
ssize_t ret;
size_t tot = 0;
int i;
char *buf, *p;
struct iovec *iov = msg->msg_iov;
for(i = 0; i < msg->msg_iovlen; ++i)
tot += iov[i].iov_len;
buf = malloc(tot);
if (tot != 0 && buf == NULL) {
errno = ENOMEM;
return -1;
}
p = buf;
for (i = 0; i < msg->msg_iovlen; ++i) {
memcpy (p, iov[i].iov_base, iov[i].iov_len);
p += iov[i].iov_len;
}
ret = sendto (s, buf, tot, flags, msg->msg_name, msg->msg_namelen);
free (buf);
return ret;
}