/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "../common/compat.h"
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/uio.h>
/*
* If writing to a utmp-like file, map the utmp structure to
* new format on the fly.
*/
extern int conv2utmpx(char *, char *, int);
int
writev(int fd, struct iovec *iov, int iovcnt)
{
return (bc_writev(fd, iov, iovcnt));
}
int
bc_writev(int fd, struct iovec *iov, int iovcnt)
{
int ret, off;
int nsize, total = 0;
char *nbuf;
int i;
if (fd_get(fd) != -1) {
for (i = 0; i < iovcnt; i++) {
nsize = getmodsize(iov[i].iov_len,
sizeof (struct compat_utmp),
sizeof (struct utmpx));
if ((nbuf = (void *)malloc(nsize)) == NULL) {
fprintf(stderr, "writev: malloc failed\n");
exit(-1);
}
(void) memset(nbuf, 0, nsize);
ret = conv2utmpx(nbuf, iov[i].iov_base, iov[i].iov_len);
if ((ret = _write(fd, nbuf, ret)) == -1) {
free(nbuf);
return (-1);
}
free(nbuf);
ret = getmodsize(ret, sizeof (struct utmpx),
sizeof (struct compat_utmp));
total += ret;
}
return (total);
}
return (_writev(fd, iov, iovcnt));
}