root/sys/arch/hp300/stand/common/tgets.c
/*      $NetBSD: tgets.c,v 1.8 2016/06/11 06:22:11 dholland 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(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;
}