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tgets.c revision 1.1 
      1 /*	$NetBSD: tgets.c,v 1.1 1997/02/04 03:52:55 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  *	@(#)gets.c	8.1 (Berkeley) 6/11/93
     36  */
     37 
     38 int
     39 tgets(buf)
     40     char *buf;
     41 {
     42     register int c;
     43     int i;
     44     register char *lp = buf;
     45 
     46     for (i = 240000; i > 0; i--) {
     47         c = tgetchar() & 0177;
     48         if (c) {
     49             for (;;) {
     50                 switch (c) {
     51                 case '\n':
     52                 case '\r':
     53                     *lp = '\0';
     54                     putchar('\n');
     55                     return (1);
     56                 case '\b':
     57                 case '\177':
     58                     if (lp > buf) {
     59                         lp--;
     60                         putchar('\b');
     61                         putchar(' ');
     62                         putchar('\b');
     63                     }
     64                     break;
     65                 case '#':
     66                     if (lp > buf)
     67                         --lp;
     68                     break;
     69                 case 'r'&037: {
     70                     register char *p;
     71 
     72                     putchar('\n');
     73                     for (p = buf; p < lp; ++p)
     74                         putchar(*p);
     75                     break;
     76                 }
     77                 case '@':
     78                 case 'u'&037:
     79                 case 'w'&037:
     80                     lp = buf;
     81                     putchar('\n');
     82                     break;
     83                 default:
     84                     *lp++ = c;
     85                     putchar(c);
     86                 }
     87                 c = getchar() & 0177;
     88             }
     89         }
     90     }
     91     return (0);
     92 }
     93