projects / apple / boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 14c7c974 A |
1 | /* |
| 2 | * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights | |
| 7 | * Reserved. This file contains Original Code and/or Modifications of | |
| 8 | * Original Code as defined in and that are subject to the Apple Public | |
| 9 | * Source License Version 1.1 (the "License"). You may not use this file | |
| 10 | * except in compliance with the License. Please obtain a copy of the | |
| 11 | * License at http://www.apple.com/publicsource and read it before using | |
| 12 | * this file. | |
| 13 | * | |
| 14 | * The Original Code and all software distributed under the License are | |
| 15 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 16 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 17 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the | |
| 19 | * License for the specific language governing rights and limitations | |
| 20 | * under the License. | |
| 21 | * | |
| 22 | * @APPLE_LICENSE_HEADER_END@ | |
| 23 | */ | |
| 24 | /* | |
| 25 | * Copyright 1993, NeXT Computer Inc. | |
| 26 | * All rights reserved. | |
| 27 | */ | |
| 28 | ||
| 29 | #include "libsaio.h" | |
| 30 | ||
| 31 | int gets( char * buf, int len ) | |
| 32 | { | |
| 33 | char *lp = buf, *end = buf + len - 1; | |
| 34 | int c; | |
| 35 | ||
| 36 | flushdev(); // XXX | |
| 37 | ||
| 38 | for (;;) { | |
| 39 | c = getchar() & 0x7f; | |
| 40 | if (c < ' ' && c != '\n' && c != '\b') c = 0; | |
| 41 | if (c == 0x7f) c = '\b'; | |
| 42 | ||
| 43 | switch(c) | |
| 44 | { | |
| 45 | case '\0': | |
| 46 | continue; | |
| 47 | case '\n': | |
| 48 | *lp++ = '\0'; | |
| 49 | putchar('\n'); | |
| 50 | return 1; | |
| 51 | case '\b': | |
| 52 | if (lp > buf) { | |
| 53 | lp--; | |
| 54 | putchar('\b'); | |
| 55 | putchar(' '); | |
| 56 | putchar('\b'); | |
| 57 | } | |
| 58 | continue; | |
| 59 | default: | |
| 60 | if (lp < end) | |
| 61 | *lp++ = c; | |
| 62 | else | |
| 63 | { | |
| 64 | putchar('\b'); | |
| 65 | putchar(' '); | |
| 66 | putchar('\b'); | |
| 67 | putchar('\007'); | |
| 68 | } | |
| 69 | } | |
| 70 | } | |
| 71 | } | |
| 72 | ||
| 73 | /* | |
| 74 | * Return a string in buf if typing has begun within timeout units. | |
| 75 | */ | |
| 76 | int | |
| 77 | Gets( char * buf, | |
| 78 | int len, | |
| 79 | int timeout, | |
| 80 | char * prompt, | |
| 81 | char * message ) | |
| 82 | { | |
| 83 | int ch = 0; | |
| 84 | int next_second; | |
| 85 | ||
| 86 | flushdev(); // XXX | |
| 87 | ||
| 88 | printf("%s", prompt); | |
| 89 | ||
| 90 | if (message) | |
| 91 | printf("%s", message); | |
| 92 | ||
| 93 | if (timeout) | |
| 94 | { | |
| 95 | for ( next_second = time18() + 18; timeout; ) | |
| 96 | { | |
| 97 | if (ch = readKeyboardStatus()) | |
| 98 | { | |
| 99 | break; | |
| 100 | } | |
| 101 | if ( time18() >= next_second ) | |
| 102 | { | |
| 103 | next_second += 18; | |
| 104 | timeout--; | |
| 105 | } | |
| 106 | } | |
| 107 | ||
| 108 | if (ch == 0) | |
| 109 | { | |
| 110 | printf("\n"); | |
| 111 | return 0; | |
| 112 | } | |
| 113 | } | |
| 114 | return ( gets(buf, len) ); | |
| 115 | } |