main.c revision 61277
1/* 2 * The new sysinstall program. 3 * 4 * This is probably the last attempt in the `sysinstall' line, the next 5 * generation being slated for what's essentially a complete rewrite. 6 * 7 * $FreeBSD: head/usr.sbin/sade/main.c 61277 2000-06-05 13:17:23Z nyan $ 8 * 9 * Copyright (c) 1995 10 * Jordan Hubbard. All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer, 17 * verbatim and that no modifications are made prior to this 18 * point in the file. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 23 * THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 */ 36 37#include "sysinstall.h" 38#include <sys/signal.h> 39#include <sys/fcntl.h> 40 41static void 42screech(int sig) 43{ 44 msgDebug("\007Signal %d caught! That's bad!\n", sig); 45 longjmp(BailOut, sig); 46} 47 48int 49main(int argc, char **argv) 50{ 51 int choice, scroll, curr, max, status; 52 53 /* Catch fatal signals and complain about them if running as init */ 54 if (getpid() == 1) { 55 signal(SIGBUS, screech); 56 signal(SIGSEGV, screech); 57 } 58 signal(SIGPIPE, SIG_IGN); 59 60 /* We don't work too well when running as non-root anymore */ 61 if (geteuid() != 0) { 62 fprintf(stderr, "Error: This utility should only be run as root.\n"); 63 return 1; 64 } 65 66#ifdef PC98 67 { 68 /* XXX */ 69 char *p = getenv("TERM"); 70 if (p && strcmp(p, "cons25") == 0) 71 putenv("TERM=cons25w"); 72 } 73#endif 74 75 /* Set up whatever things need setting up */ 76 systemInitialize(argc, argv); 77 78 /* Set default flag and variable values */ 79 installVarDefaults(NULL); 80 /* only when multi-user is it reasonable to do this here */ 81 if (!RunningAsInit) 82 installEnvironment(); 83 84 if (argc > 1 && !strcmp(argv[1], "-fake")) { 85 variable_set2(VAR_DEBUG, "YES", 0); 86 Fake = TRUE; 87 msgConfirm("I'll be just faking it from here on out, OK?"); 88 } 89 90 /* Try to preserve our scroll-back buffer */ 91 if (OnVTY) { 92 for (curr = 0; curr < 25; curr++) 93 putchar('\n'); 94 } 95 /* Move stderr aside */ 96 if (DebugFD) 97 dup2(DebugFD, 2); 98 99 /* Initialize PC-card */ 100 pccardInitialize(); 101 102 /* Initialize USB */ 103 usbInitialize(); 104 105 /* Probe for all relevant devices on the system */ 106 deviceGetAll(); 107 108 /* First, see if we have any arguments to process (and argv[0] counts if it's not "sysinstall") */ 109 if (!RunningAsInit) { 110 int i, start_arg; 111 112 if (!strstr(argv[0], "sysinstall")) 113 start_arg = 0; 114 else if (Fake) 115 start_arg = 2; 116 else 117 start_arg = 1; 118 for (i = start_arg; i < argc; i++) { 119 if (DITEM_STATUS(dispatchCommand(argv[i])) != DITEM_SUCCESS) 120 systemShutdown(1); 121 } 122 if (argc > start_arg) 123 systemShutdown(0); 124 } 125 else 126 dispatch_load_file_int(TRUE); 127 128 status = setjmp(BailOut); 129 if (status) { 130 msgConfirm("A signal %d was caught - I'm saving what I can and shutting\n" 131 "If you can reproduce the problem, please turn Debug on in\n" 132 "the Options menu for the extra information it provides in\n" 133 "debugging problems like this.", status); 134 systemShutdown(status); 135 } 136 137 /* Begin user dialog at outer menu */ 138 dialog_clear(); 139 while (1) { 140 choice = scroll = curr = max = 0; 141 dmenuOpen(&MenuInitial, &choice, &scroll, &curr, &max, TRUE); 142 if (getpid() != 1 143#ifdef __alpha__ 144 || !msgYesNo("Are you sure you wish to exit? The system will halt.") 145#else 146 || !msgYesNo("Are you sure you wish to exit? The system will reboot\n" 147 "(be sure to remove any floppies/CDROMs from the drives).") 148#endif 149 ) 150 break; 151 } 152 153 /* Say goodnight, Gracie */ 154 systemShutdown(0); 155 156 return 0; /* We should never get here */ 157} 158