xref: /src/sys/arch/hp300/stand/common/tgets.c

/*	$NetBSD: tgets.c,v 1.7 2016/06/09 03:05:54 christos Exp $	*/

/*-
 * Copyright (c) 1993
 *	The Regents of the University of California.  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 University 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 REGENTS 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 REGENTS 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.
 *
 *	@(#)gets.c	8.1 (Berkeley) 6/11/93
 */

#include <sys/param.h>

#include <lib/libsa/stand.h>

#include <hp300/stand/common/samachdep.h>

int
tgets_s(char *buf, size_t size)
{
	int c;
	int i;
	char *lp = buf;

	for (i = 240000; i > 0; i--) {
                if (lp - buf == size) {
                        lp--;
                        *lp = '\0';
                        return 0;
                }
		c = tgetchar() & 0177;
		if (c) {
			for (;;) {
				switch (c) {
				case '\n':
				case '\r':
					*lp = '\0';
					putchar('\n');
					return 1;
				case '\b':
				case '\177':
					if (lp > buf) {
						lp--;
						putchar('\b');
						putchar(' ');
						putchar('\b');
					}
					break;
				case '#':
					if (lp > buf)
						--lp;
					break;
				case 'r' & 037: {
					char *p;

					putchar('\n');
					for (p = buf; p < lp; ++p)
						putchar(*p);
					break;
				}
				case '@':
				case 'u'&037:
				case 'w'&037:
					lp = buf;
					putchar('\n');
					break;
				default:
					*lp++ = c;
					putchar(c);
				}
				c = getchar() & 0177;
			}
		}
	}
	return 0;
}