/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 2005 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"
/*
* This program reads a single line from the standard input
* and writes it on the standard output. It is probably most useful
* in conjunction with the shell.
*/
#include <limits.h>
#include <unistd.h>
#define LSIZE LINE_MAX /* POSIX.2 */
static char readc(void);
static int EOF;
static char nl = '\n';
/*ARGSUSED*/
int
main(int argc, char **argv)
{
char c;
char line[LSIZE];
char *linep, *linend;
EOF = 0;
linep = line;
linend = line + LSIZE;
while ((c = readc()) != nl) {
if (linep == linend) {
(void) write(1, line, LSIZE);
linep = line;
}
*linep++ = c;
}
/* LINTED E_PTRDIFF_T_OVERFLOW */
(void) write(1, line, linep-line);
(void) write(1, &nl, 1);
if (EOF == 1)
return (1);
return (0);
}
static char
readc(void)
{
char c;
if (read(0, &c, 1) != 1) {
EOF = 1;
return (nl);
}
else
return (c);
}