1/* $NetBSD: bootmenu.c,v 1.5 2016/06/11 06:58:42 dholland Exp $ */ 2 3/*- 4 * Copyright (c) 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#include <sys/types.h> 30#include <sys/reboot.h> 31#include <sys/bootblock.h> 32 33#include "boot.h" 34#include "unixdev.h" 35#include "bootmenu.h" 36#include "pathnames.h" 37 38#define MENUFORMAT_AUTO 0 39#define MENUFORMAT_NUMBER 1 40#define MENUFORMAT_LETTER 2 41 42void 43parsebootconf(const char *conf) 44{ 45 perform_bootcfg(conf, &bootcfg_do_noop, 0); 46} 47 48/* 49 * doboottypemenu will render the menu and parse any user input 50 */ 51static int 52getchoicefrominput(char *input, int def) 53{ 54 int choice = -1; 55 56 if (*input == '\0' || *input == '\r' || *input == '\n') 57 choice = def; 58 else if (*input >= 'A' && *input < bootcfg_info.nummenu + 'A') 59 choice = (*input) - 'A'; 60 else if (*input >= 'a' && *input < bootcfg_info.nummenu + 'a') 61 choice = (*input) - 'a'; 62 else if (isdigit(*input)) { 63 choice = atoi(input) - 1; 64 if (choice < 0 || choice >= bootcfg_info.nummenu) 65 choice = -1; 66 } 67 return choice; 68} 69 70void 71doboottypemenu(void) 72{ 73 char input[80], *ic, *oc; 74 int choice; 75 76 printf("\n"); 77 /* Display menu */ 78 if (bootcfg_info.menuformat == MENUFORMAT_LETTER) { 79 for (choice = 0; choice < bootcfg_info.nummenu; choice++) 80 printf(" %c. %s\n", choice + 'A', 81 bootcfg_info.desc[choice]); 82 } else { 83 /* Can't use %2d format string with libsa */ 84 for (choice = 0; choice < bootcfg_info.nummenu; choice++) 85 printf(" %s%d. %s\n", 86 (choice < 9) ? " " : "", 87 choice + 1, 88 bootcfg_info.desc[choice]); 89 } 90 choice = -1; 91 for (;;) { 92 input[0] = '\0'; 93 94 if (bootcfg_info.timeout < 0) { 95 if (bootcfg_info.menuformat == MENUFORMAT_LETTER) 96 printf("\nOption: [%c]:", 97 bootcfg_info.def + 'A'); 98 else 99 printf("\nOption: [%d]:", 100 bootcfg_info.def + 1); 101 102 kgets(input, sizeof(input)); 103 choice = getchoicefrominput(input, bootcfg_info.def); 104 } else if (bootcfg_info.timeout == 0) 105 choice = bootcfg_info.def; 106 else { 107 printf("\nChoose an option; RETURN for default; " 108 "SPACE to stop countdown.\n"); 109 if (bootcfg_info.menuformat == MENUFORMAT_LETTER) 110 printf("Option %c will be chosen in ", 111 bootcfg_info.def + 'A'); 112 else 113 printf("Option %d will be chosen in ", 114 bootcfg_info.def + 1); 115 input[0] = awaitkey(bootcfg_info.timeout, 1); 116 input[1] = '\0'; 117 choice = getchoicefrominput(input, bootcfg_info.def); 118 /* If invalid key pressed, drop to menu */ 119 if (choice == -1) 120 bootcfg_info.timeout = -1; 121 } 122 if (choice < 0) 123 continue; 124 if (!strcmp(bootcfg_info.command[choice], "prompt")) { 125 printf("type \"?\" or \"help\" for help.\n"); 126 bootmenu(); /* does not return */ 127 } else { 128 ic = bootcfg_info.command[choice]; 129 /* Split command string at ; into separate commands */ 130 do { 131 oc = input; 132 /* Look for ; separator */ 133 for (; *ic && *ic != COMMAND_SEPARATOR; ic++) 134 *oc++ = *ic; 135 if (*input == '\0') 136 continue; 137 /* Strip out any trailing spaces */ 138 oc--; 139 for (; *oc == ' ' && oc > input; oc--); 140 *++oc = '\0'; 141 if (*ic == COMMAND_SEPARATOR) 142 ic++; 143 /* Stop silly command strings like ;;; */ 144 if (*input != '\0') 145 docommand(input); 146 /* Skip leading spaces */ 147 for (; *ic == ' '; ic++); 148 } while (*ic); 149 } 150 } 151} 152