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getline.c revision 1.2.6.3
      1  1.2.6.2  tls /*	$NetBSD: getline.c,v 1.2.6.3 2014/08/20 00:03:10 tls Exp $	*/
      2  1.2.6.2  tls 
      3  1.2.6.2  tls /*
      4  1.2.6.2  tls  * Copyright (c) 1992 OMRON Corporation.
      5  1.2.6.2  tls  *
      6  1.2.6.2  tls  * This code is derived from software contributed to Berkeley by
      7  1.2.6.2  tls  * OMRON Corporation.
      8  1.2.6.2  tls  *
      9  1.2.6.2  tls  * Redistribution and use in source and binary forms, with or without
     10  1.2.6.2  tls  * modification, are permitted provided that the following conditions
     11  1.2.6.2  tls  * are met:
     12  1.2.6.2  tls  * 1. Redistributions of source code must retain the above copyright
     13  1.2.6.2  tls  *    notice, this list of conditions and the following disclaimer.
     14  1.2.6.2  tls  * 2. Redistributions in binary form must reproduce the above copyright
     15  1.2.6.2  tls  *    notice, this list of conditions and the following disclaimer in the
     16  1.2.6.2  tls  *    documentation and/or other materials provided with the distribution.
     17  1.2.6.2  tls  * 3. All advertising materials mentioning features or use of this software
     18  1.2.6.2  tls  *    must display the following acknowledgement:
     19  1.2.6.2  tls  *	This product includes software developed by the University of
     20  1.2.6.2  tls  *	California, Berkeley and its contributors.
     21  1.2.6.2  tls  * 4. Neither the name of the University nor the names of its contributors
     22  1.2.6.2  tls  *    may be used to endorse or promote products derived from this software
     23  1.2.6.2  tls  *    without specific prior written permission.
     24  1.2.6.2  tls  *
     25  1.2.6.2  tls  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26  1.2.6.2  tls  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  1.2.6.2  tls  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  1.2.6.2  tls  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29  1.2.6.2  tls  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30  1.2.6.2  tls  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31  1.2.6.2  tls  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  1.2.6.2  tls  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  1.2.6.2  tls  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  1.2.6.2  tls  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  1.2.6.2  tls  * SUCH DAMAGE.
     36  1.2.6.2  tls  *
     37  1.2.6.2  tls  *	@(#)getline.c	8.1 (Berkeley) 6/10/93
     38  1.2.6.2  tls  */
     39  1.2.6.2  tls /*
     40  1.2.6.2  tls  * Copyright (c) 1992, 1993
     41  1.2.6.2  tls  *	The Regents of the University of California.  All rights reserved.
     42  1.2.6.2  tls  *
     43  1.2.6.2  tls  * This code is derived from software contributed to Berkeley by
     44  1.2.6.2  tls  * OMRON Corporation.
     45  1.2.6.2  tls  *
     46  1.2.6.2  tls  * Redistribution and use in source and binary forms, with or without
     47  1.2.6.2  tls  * modification, are permitted provided that the following conditions
     48  1.2.6.2  tls  * are met:
     49  1.2.6.2  tls  * 1. Redistributions of source code must retain the above copyright
     50  1.2.6.2  tls  *    notice, this list of conditions and the following disclaimer.
     51  1.2.6.2  tls  * 2. Redistributions in binary form must reproduce the above copyright
     52  1.2.6.2  tls  *    notice, this list of conditions and the following disclaimer in the
     53  1.2.6.2  tls  *    documentation and/or other materials provided with the distribution.
     54  1.2.6.2  tls  * 3. Neither the name of the University nor the names of its contributors
     55  1.2.6.2  tls  *    may be used to endorse or promote products derived from this software
     56  1.2.6.2  tls  *    without specific prior written permission.
     57  1.2.6.2  tls  *
     58  1.2.6.2  tls  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     59  1.2.6.2  tls  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     60  1.2.6.2  tls  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     61  1.2.6.2  tls  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     62  1.2.6.2  tls  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     63  1.2.6.2  tls  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     64  1.2.6.2  tls  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     65  1.2.6.2  tls  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     66  1.2.6.2  tls  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     67  1.2.6.2  tls  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     68  1.2.6.2  tls  * SUCH DAMAGE.
     69  1.2.6.2  tls  *
     70  1.2.6.2  tls  *	@(#)getline.c	8.1 (Berkeley) 6/10/93
     71  1.2.6.2  tls  */
     72  1.2.6.2  tls 
     73  1.2.6.2  tls /*
     74  1.2.6.2  tls  * getline -- simple getline function
     75  1.2.6.3  tls  *	by A.Fujita, Dec-11-1992
     76  1.2.6.2  tls  */
     77  1.2.6.2  tls 
     78  1.2.6.2  tls #include <lib/libkern/libkern.h>
     79  1.2.6.2  tls #include <luna68k/stand/boot/samachdep.h>
     80  1.2.6.2  tls 
     81  1.2.6.2  tls int
     82  1.2.6.3  tls getline(const char *prompt, char *buff)
     83  1.2.6.2  tls {
     84  1.2.6.2  tls 	int c;
     85  1.2.6.3  tls 	char *p, *lp = buff;
     86  1.2.6.2  tls 
     87  1.2.6.2  tls 	printf("%s", prompt);
     88  1.2.6.2  tls 
     89  1.2.6.3  tls 	for (;;) {
     90  1.2.6.3  tls 		c = getchar() & 0x7f;
     91  1.2.6.2  tls 
     92  1.2.6.2  tls 		switch (c) {
     93  1.2.6.3  tls 		case '\n':
     94  1.2.6.3  tls 		case '\r':
     95  1.2.6.3  tls 			*lp = '\0';
     96  1.2.6.2  tls 			putchar('\n');
     97  1.2.6.2  tls 			goto outloop;
     98  1.2.6.2  tls 
     99  1.2.6.3  tls 		case '\b':
    100  1.2.6.2  tls 		case 0x7f:
    101  1.2.6.3  tls 			if (lp > buff) {
    102  1.2.6.3  tls 				lp--;
    103  1.2.6.3  tls 				putchar('\b');
    104  1.2.6.2  tls 				putchar(' ');
    105  1.2.6.3  tls 				putchar('\b');
    106  1.2.6.2  tls 			}
    107  1.2.6.2  tls 			break;
    108  1.2.6.2  tls 
    109  1.2.6.3  tls 		case 'r' & 0x1f:
    110  1.2.6.3  tls 			putchar('\n');
    111  1.2.6.3  tls 			printf("%s", prompt);
    112  1.2.6.3  tls 			for (p = buff; p < lp; ++p)
    113  1.2.6.3  tls 				putchar(*p);
    114  1.2.6.3  tls 			break;
    115  1.2.6.3  tls 
    116  1.2.6.3  tls 		case 'u' & 0x1f:
    117  1.2.6.3  tls 		case 'w' & 0x1f:
    118  1.2.6.3  tls 			lp = buff;
    119  1.2.6.3  tls 			printf("\n%s", prompt);
    120  1.2.6.3  tls 			break;
    121  1.2.6.3  tls 
    122  1.2.6.2  tls 		default:
    123  1.2.6.3  tls 			*lp++ = c;
    124  1.2.6.2  tls 			putchar(c);
    125  1.2.6.2  tls 			break;
    126  1.2.6.2  tls 		}
    127  1.2.6.2  tls 	}
    128  1.2.6.2  tls 
    129  1.2.6.2  tls  outloop:
    130  1.2.6.3  tls 	*lp = '\0';
    131  1.2.6.3  tls 	return lp - buff;
    132  1.2.6.2  tls }
    133