155682Smarkm/*
2233294Sstas * Copyright (c) 1995, 1996, 1997, 1998, 1999 Kungliga Tekniska H��gskolan
355682Smarkm * (Royal Institute of Technology, Stockholm, Sweden).
455682Smarkm * All rights reserved.
5233294Sstas *
655682Smarkm * Redistribution and use in source and binary forms, with or without
755682Smarkm * modification, are permitted provided that the following conditions
855682Smarkm * are met:
9233294Sstas *
1055682Smarkm * 1. Redistributions of source code must retain the above copyright
1155682Smarkm *    notice, this list of conditions and the following disclaimer.
12233294Sstas *
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.
16233294Sstas *
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.
20233294Sstas *
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#include <config.h>
3555682Smarkm
3655682Smarkm#include "roken.h"
3755682Smarkm
38233294SstasROKEN_LIB_FUNCTION ssize_t ROKEN_LIB_CALL
3955682Smarkmwritev(int d, const struct iovec *iov, int iovcnt)
4055682Smarkm{
4155682Smarkm    ssize_t ret;
4255682Smarkm    size_t tot = 0;
4355682Smarkm    int i;
4455682Smarkm    char *buf, *p;
4555682Smarkm
4655682Smarkm    for(i = 0; i < iovcnt; ++i)
4755682Smarkm	tot += iov[i].iov_len;
4855682Smarkm    buf = malloc(tot);
4955682Smarkm    if (tot != 0 && buf == NULL) {
5055682Smarkm	errno = ENOMEM;
5155682Smarkm	return -1;
5255682Smarkm    }
5355682Smarkm    p = buf;
5455682Smarkm    for (i = 0; i < iovcnt; ++i) {
5555682Smarkm	memcpy (p, iov[i].iov_base, iov[i].iov_len);
5655682Smarkm	p += iov[i].iov_len;
5755682Smarkm    }
5855682Smarkm    ret = write (d, buf, tot);
5955682Smarkm    free (buf);
6055682Smarkm    return ret;
6155682Smarkm}
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