prompt.c revision 1.2.2.2
1 1.2.2.2 pgoyette /* $NetBSD: prompt.c,v 1.2.2.2 2018/09/06 06:56:47 pgoyette Exp $ */ 2 1.2.2.2 pgoyette 3 1.2.2.2 pgoyette /* 4 1.2.2.2 pgoyette * Copyright (c) 1996, 1997 5 1.2.2.2 pgoyette * Matthias Drochner. All rights reserved. 6 1.2.2.2 pgoyette * Copyright (c) 1996, 1997 7 1.2.2.2 pgoyette * Perry E. Metzger. All rights reserved. 8 1.2.2.2 pgoyette * Copyright (c) 1997 9 1.2.2.2 pgoyette * Jason R. Thorpe. All rights reserved 10 1.2.2.2 pgoyette * 11 1.2.2.2 pgoyette * Redistribution and use in source and binary forms, with or without 12 1.2.2.2 pgoyette * modification, are permitted provided that the following conditions 13 1.2.2.2 pgoyette * are met: 14 1.2.2.2 pgoyette * 1. Redistributions of source code must retain the above copyright 15 1.2.2.2 pgoyette * notice, this list of conditions and the following disclaimer. 16 1.2.2.2 pgoyette * 2. Redistributions in binary form must reproduce the above copyright 17 1.2.2.2 pgoyette * notice, this list of conditions and the following disclaimer in the 18 1.2.2.2 pgoyette * documentation and/or other materials provided with the distribution. 19 1.2.2.2 pgoyette * 3. All advertising materials mentioning features or use of this software 20 1.2.2.2 pgoyette * must display the following acknowledgements: 21 1.2.2.2 pgoyette * This product includes software developed for the NetBSD Project 22 1.2.2.2 pgoyette * by Matthias Drochner. 23 1.2.2.2 pgoyette * This product includes software developed for the NetBSD Project 24 1.2.2.2 pgoyette * by Perry E. Metzger. 25 1.2.2.2 pgoyette * 4. The names of the authors may not be used to endorse or promote products 26 1.2.2.2 pgoyette * derived from this software without specific prior written permission. 27 1.2.2.2 pgoyette * 28 1.2.2.2 pgoyette * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 29 1.2.2.2 pgoyette * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 30 1.2.2.2 pgoyette * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 31 1.2.2.2 pgoyette * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 32 1.2.2.2 pgoyette * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 33 1.2.2.2 pgoyette * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 34 1.2.2.2 pgoyette * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 35 1.2.2.2 pgoyette * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 36 1.2.2.2 pgoyette * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 37 1.2.2.2 pgoyette * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 38 1.2.2.2 pgoyette */ 39 1.2.2.2 pgoyette 40 1.2.2.2 pgoyette #include "efiboot.h" 41 1.2.2.2 pgoyette 42 1.2.2.2 pgoyette #include <lib/libsa/net.h> 43 1.2.2.2 pgoyette 44 1.2.2.2 pgoyette #define POLL_FREQ 10 45 1.2.2.2 pgoyette 46 1.2.2.2 pgoyette char * 47 1.2.2.2 pgoyette gettrailer(char *arg) 48 1.2.2.2 pgoyette { 49 1.2.2.2 pgoyette char *options; 50 1.2.2.2 pgoyette 51 1.2.2.2 pgoyette for (options = arg; *options; options++) { 52 1.2.2.2 pgoyette switch (*options) { 53 1.2.2.2 pgoyette case ' ': 54 1.2.2.2 pgoyette case '\t': 55 1.2.2.2 pgoyette *options++ = '\0'; 56 1.2.2.2 pgoyette break; 57 1.2.2.2 pgoyette default: 58 1.2.2.2 pgoyette continue; 59 1.2.2.2 pgoyette } 60 1.2.2.2 pgoyette break; 61 1.2.2.2 pgoyette } 62 1.2.2.2 pgoyette if (*options == '\0') 63 1.2.2.2 pgoyette return options; 64 1.2.2.2 pgoyette 65 1.2.2.2 pgoyette /* trim leading blanks/tabs */ 66 1.2.2.2 pgoyette while (*options == ' ' || *options == '\t') 67 1.2.2.2 pgoyette options++; 68 1.2.2.2 pgoyette 69 1.2.2.2 pgoyette return options; 70 1.2.2.2 pgoyette } 71 1.2.2.2 pgoyette 72 1.2.2.2 pgoyette char 73 1.2.2.2 pgoyette awaitkey(int timeout, int tell) 74 1.2.2.2 pgoyette { 75 1.2.2.2 pgoyette int i = timeout * POLL_FREQ; 76 1.2.2.2 pgoyette char c = 0; 77 1.2.2.2 pgoyette 78 1.2.2.2 pgoyette for (;;) { 79 1.2.2.2 pgoyette if (tell) { 80 1.2.2.2 pgoyette char buf[32]; 81 1.2.2.2 pgoyette int len; 82 1.2.2.2 pgoyette 83 1.2.2.2 pgoyette len = snprintf(buf, sizeof(buf), "%d seconds. ", (i + POLL_FREQ - 1) / POLL_FREQ); 84 1.2.2.2 pgoyette if (len > 0 && len < sizeof(buf)) { 85 1.2.2.2 pgoyette char *p = buf; 86 1.2.2.2 pgoyette printf("%s", buf); 87 1.2.2.2 pgoyette while (*p) 88 1.2.2.2 pgoyette *p++ = '\b'; 89 1.2.2.2 pgoyette printf("%s", buf); 90 1.2.2.2 pgoyette } 91 1.2.2.2 pgoyette } 92 1.2.2.2 pgoyette if (ischar()) { 93 1.2.2.2 pgoyette while (ischar()) 94 1.2.2.2 pgoyette c = getchar(); 95 1.2.2.2 pgoyette if (c == 0) 96 1.2.2.2 pgoyette c = -1; 97 1.2.2.2 pgoyette goto out; 98 1.2.2.2 pgoyette } 99 1.2.2.2 pgoyette if (--i > 0) { 100 1.2.2.2 pgoyette efi_delay(1000000 / POLL_FREQ); 101 1.2.2.2 pgoyette } else { 102 1.2.2.2 pgoyette break; 103 1.2.2.2 pgoyette } 104 1.2.2.2 pgoyette } 105 1.2.2.2 pgoyette 106 1.2.2.2 pgoyette out: 107 1.2.2.2 pgoyette if (tell) 108 1.2.2.2 pgoyette printf("0 seconds. \n"); 109 1.2.2.2 pgoyette 110 1.2.2.2 pgoyette return c; 111 1.2.2.2 pgoyette } 112 1.2.2.2 pgoyette 113 1.2.2.2 pgoyette void 114 1.2.2.2 pgoyette docommand(char *arg) 115 1.2.2.2 pgoyette { 116 1.2.2.2 pgoyette char *options; 117 1.2.2.2 pgoyette int i; 118 1.2.2.2 pgoyette 119 1.2.2.2 pgoyette options = gettrailer(arg); 120 1.2.2.2 pgoyette 121 1.2.2.2 pgoyette for (i = 0; commands[i].c_name != NULL; i++) { 122 1.2.2.2 pgoyette if (strcmp(arg, commands[i].c_name) == 0) { 123 1.2.2.2 pgoyette (*commands[i].c_fn)(options); 124 1.2.2.2 pgoyette return; 125 1.2.2.2 pgoyette } 126 1.2.2.2 pgoyette } 127 1.2.2.2 pgoyette 128 1.2.2.2 pgoyette printf("unknown command\n"); 129 1.2.2.2 pgoyette command_help(NULL); 130 1.2.2.2 pgoyette } 131 1.2.2.2 pgoyette 132 1.2.2.2 pgoyette __dead void 133 1.2.2.2 pgoyette bootprompt(void) 134 1.2.2.2 pgoyette { 135 1.2.2.2 pgoyette char input[80]; 136 1.2.2.2 pgoyette 137 1.2.2.2 pgoyette for (;;) { 138 1.2.2.2 pgoyette char *c = input; 139 1.2.2.2 pgoyette 140 1.2.2.2 pgoyette input[0] = '\0'; 141 1.2.2.2 pgoyette printf("> "); 142 1.2.2.2 pgoyette kgets(input, sizeof(input)); 143 1.2.2.2 pgoyette 144 1.2.2.2 pgoyette /* 145 1.2.2.2 pgoyette * Skip leading whitespace. 146 1.2.2.2 pgoyette */ 147 1.2.2.2 pgoyette while (*c == ' ') 148 1.2.2.2 pgoyette c++; 149 1.2.2.2 pgoyette if (*c) 150 1.2.2.2 pgoyette docommand(c); 151 1.2.2.2 pgoyette } 152 1.2.2.2 pgoyette } 153
Indexes created Thu Oct 02 14:10:14 GMT 2025