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