xref: /onnv-gate/usr/src/psm/stand/boot/sparc/common/get.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate #include <sys/types.h>
30*0Sstevel@tonic-gate #include <sys/promif.h>
31*0Sstevel@tonic-gate 
32*0Sstevel@tonic-gate int
getchar(void)33*0Sstevel@tonic-gate getchar(void)
34*0Sstevel@tonic-gate {
35*0Sstevel@tonic-gate 	register int c;
36*0Sstevel@tonic-gate 
37*0Sstevel@tonic-gate 	while ((c = prom_mayget()) == -1)
38*0Sstevel@tonic-gate 		;
39*0Sstevel@tonic-gate 	if (c == '\r') {
40*0Sstevel@tonic-gate 		prom_putchar(c);
41*0Sstevel@tonic-gate 		c = '\n';
42*0Sstevel@tonic-gate 	}
43*0Sstevel@tonic-gate 	if (c == 0177 || c == '\b') {
44*0Sstevel@tonic-gate 		prom_putchar('\b');
45*0Sstevel@tonic-gate 		prom_putchar(' ');
46*0Sstevel@tonic-gate 		c = '\b';
47*0Sstevel@tonic-gate 	}
48*0Sstevel@tonic-gate 	prom_putchar(c);
49*0Sstevel@tonic-gate 	return (c);
50*0Sstevel@tonic-gate }
51*0Sstevel@tonic-gate 
52*0Sstevel@tonic-gate int
cons_gets(char * buf,int n)53*0Sstevel@tonic-gate cons_gets(char *buf, int n)
54*0Sstevel@tonic-gate {
55*0Sstevel@tonic-gate 	char *lp;
56*0Sstevel@tonic-gate 	char *limit;
57*0Sstevel@tonic-gate 	int c;
58*0Sstevel@tonic-gate 
59*0Sstevel@tonic-gate 	lp = buf;
60*0Sstevel@tonic-gate 	limit = &buf[n - 1];
61*0Sstevel@tonic-gate 	for (;;) {
62*0Sstevel@tonic-gate 		c = getchar() & 0177;
63*0Sstevel@tonic-gate 		switch (c) {
64*0Sstevel@tonic-gate 		case '\n':
65*0Sstevel@tonic-gate 		case '\r':
66*0Sstevel@tonic-gate 			*lp = '\0';
67*0Sstevel@tonic-gate 			return (0);
68*0Sstevel@tonic-gate 		case '\b':
69*0Sstevel@tonic-gate 			if (lp > buf)
70*0Sstevel@tonic-gate 				lp--;
71*0Sstevel@tonic-gate 			continue;
72*0Sstevel@tonic-gate 		case 'u'&037:			/* ^U */
73*0Sstevel@tonic-gate 			lp = buf;
74*0Sstevel@tonic-gate 			prom_putchar('\r');
75*0Sstevel@tonic-gate 			prom_putchar('\n');
76*0Sstevel@tonic-gate 			continue;
77*0Sstevel@tonic-gate 		default:
78*0Sstevel@tonic-gate 			if (lp < limit)
79*0Sstevel@tonic-gate 				*lp++ = (char)c;
80*0Sstevel@tonic-gate 			else
81*0Sstevel@tonic-gate 				prom_putchar('\a');	/* bell */
82*0Sstevel@tonic-gate 		}
83*0Sstevel@tonic-gate 	}
84*0Sstevel@tonic-gate }
85