main.c revision 22756
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 22756 1997-02-15 15:24:14Z jkh $ 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 printf("\007Fatal signal %d caught! I'm dead..\n", sig); 45 if (RunningAsInit) 46 pause(); 47 else 48 exit(1); 49} 50 51int 52main(int argc, char **argv) 53{ 54 int choice, scroll, curr, max; 55 56 /* Catch fatal signals and complain about them if running as init */ 57 if (getpid() == 1) { 58 signal(SIGBUS, screech); 59 signal(SIGSEGV, screech); 60 } 61 62 /* We don't work too well when running as non-root anymore */ 63 if (geteuid() != 0) { 64 fprintf(stderr, "Error: This utility should only be run as root.\n"); 65 return 1; 66 } 67 68 /* Set up whatever things need setting up */ 69 systemInitialize(argc, argv); 70 71 /* Set default flag and variable values */ 72 installVarDefaults(NULL); 73 installEnvironment(); 74 75 if (argc > 1 && !strcmp(argv[1], "-fake")) { 76 variable_set2(VAR_DEBUG, "YES"); 77 Fake = TRUE; 78 msgConfirm("I'll be just faking it from here on out, OK?"); 79 } 80 81 /* Try to preserve our scroll-back buffer */ 82 if (OnVTY) { 83 for (curr = 0; curr < 25; curr++) 84 putchar('\n'); 85 } 86 /* Move stderr aside */ 87 if (DebugFD) 88 dup2(DebugFD, 2); 89 90 /* Probe for all relevant devices on the system */ 91 deviceGetAll(); 92 93 /* First, see if we have any arguments to process (and argv[0] counts if it's not "sysinstall") */ 94 if (!RunningAsInit) { 95 int i, start_arg; 96 97 if (!strstr(argv[0], "sysinstall")) 98 start_arg = 0; 99 else if (Fake) 100 start_arg = 2; 101 else 102 start_arg = 1; 103 for (i = start_arg; i < argc; i++) { 104 if (DITEM_STATUS(dispatchCommand(argv[i])) != DITEM_SUCCESS) 105 systemShutdown(1); 106 } 107 if (argc > start_arg) 108 systemShutdown(0); 109 } 110 else { 111 FILE *fp; 112 char buf[BUFSIZ]; 113 114 fp = fopen("install.cfg", "r"); 115 if (fp) { 116 msgNotify("Loading pre-configuration file"); 117 while (fgets(buf, sizeof buf, fp)) { 118 if (DITEM_STATUS(dispatchCommand(buf)) != DITEM_SUCCESS) { 119 msgDebug("Command `%s' failed - rest of script aborted.\n", buf); 120 break; 121 } 122 } 123 fclose(fp); 124 } 125#if defined(LOAD_CONFIG_FILE) 126 else { 127 /* If we have a compiled-in startup config file name on 128 the floppy, look for it and try to load it on startup */ 129 extern char *distWanted; 130 131 /* Tell mediaSetFloppy() to try floppy now */ 132 distWanted = LOAD_CONFIG_FILE; 133 134 /* Try to open the floppy drive if we can do that first */ 135 if (DITEM_STATUS(mediaSetFloppy(NULL)) != DITEM_FAILURE && mediaDevice->init(mediaDevice)) { 136 fp = mediaDevice->get(mediaDevice, LOAD_CONFIG_FILE, TRUE); 137 if (fp) { 138 msgNotify("Loading %s pre-configuration file", LOAD_CONFIG_FILE); 139 while (fgets(buf, sizeof buf, fp)) { 140 if (DITEM_STATUS(dispatchCommand(buf)) != DITEM_SUCCESS) { 141 msgDebug("Command `%s' failed - rest of script aborted.\n", buf); 142 break; 143 } 144 } 145 fclose(fp); 146 } 147 mediaDevice->shutdown(mediaDevice); 148 } 149 } 150#endif 151 } 152 153 /* Begin user dialog at outer menu */ 154 dialog_clear(); 155 while (1) { 156 choice = scroll = curr = max = 0; 157 dmenuOpen(&MenuInitial, &choice, &scroll, &curr, &max, TRUE); 158 if (getpid() != 1 || !msgYesNo("Are you sure you wish to exit? The system will reboot\n" 159 "(be sure to remove any floppies from the drives).")) 160 break; 161 } 162 163 /* Say goodnight, Gracie */ 164 systemShutdown(0); 165 166 return 0; /* We should never get here */ 167} 168