/*
* 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 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* NAME
* copystream - copy one FILE stream to another
*
* SYNOPSIS
* int copystream(FILE *infp, FILE *outfp)
*
* DESCRIPTION
* copystream() copies one stream to another. The stream
* infp must be opened for reading and the stream outfp
* must be opened for writing.
*
* It returns true if the stream is successively copied;
* false if any writes fail.
*/
#include "libmail.h"
#include <sys/types.h>
int
copystream(FILE *infp, FILE *outfp)
{
char buffer[BUFSIZ];
size_t nread;
while ((nread = fread(buffer, sizeof (char), sizeof (buffer),
infp)) > 0)
if (fwrite(buffer, sizeof (char), nread, outfp) != nread)
return (0);
return (1);
}