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tgets.c revision 1.7 
      1 /*	$NetBSD: tgets.c,v 1.7 2016/06/09 03:05:54 christos 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. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  *	@(#)gets.c	8.1 (Berkeley) 6/11/93
     32  */
     33 
     34 #include <sys/param.h>
     35 
     36 #include <lib/libsa/stand.h>
     37 
     38 #include <hp300/stand/common/samachdep.h>
     39 
     40 int
     41 tgets_s(char *buf, size_t size)
     42 {
     43 	int c;
     44 	int i;
     45 	char *lp = buf;
     46 
     47 	for (i = 240000; i > 0; i--) {
     48                 if (lp - buf == size) {
     49                         lp--;
     50                         *lp = '\0';
     51                         return 0;
     52                 }
     53 		c = tgetchar() & 0177;
     54 		if (c) {
     55 			for (;;) {
     56 				switch (c) {
     57 				case '\n':
     58 				case '\r':
     59 					*lp = '\0';
     60 					putchar('\n');
     61 					return 1;
     62 				case '\b':
     63 				case '\177':
     64 					if (lp > buf) {
     65 						lp--;
     66 						putchar('\b');
     67 						putchar(' ');
     68 						putchar('\b');
     69 					}
     70 					break;
     71 				case '#':
     72 					if (lp > buf)
     73 						--lp;
     74 					break;
     75 				case 'r' & 037: {
     76 					char *p;
     77 
     78 					putchar('\n');
     79 					for (p = buf; p < lp; ++p)
     80 						putchar(*p);
     81 					break;
     82 				}
     83 				case '@':
     84 				case 'u'&037:
     85 				case 'w'&037:
     86 					lp = buf;
     87 					putchar('\n');
     88 					break;
     89 				default:
     90 					*lp++ = c;
     91 					putchar(c);
     92 				}
     93 				c = getchar() & 0177;
     94 			}
     95 		}
     96 	}
     97 	return 0;
     98 }
     99