Erik Andersen | ccc7488 | 2000-01-27 02:40:21 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
Eric Andersen | c499601 | 1999-10-20 22:08:37 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Mini init implementation for busybox |
| 4 | * |
| 5 | * |
| 6 | * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>. |
| 7 | * Adjusted by so many folks, it's impossible to keep track. |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 22 | * |
| 23 | */ |
| 24 | |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 25 | /* Turn this on to disable all the dangerous |
| 26 | rebooting stuff when debugging. |
| 27 | #define DEBUG_INIT |
| 28 | */ |
| 29 | |
Erik Andersen | 4f3f757 | 2000-04-28 00:18:56 +0000 | [diff] [blame] | 30 | #include <stdio.h> |
| 31 | #include <stdlib.h> |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 32 | #include <errno.h> |
Eric Andersen | b186d98 | 1999-12-03 09:19:54 +0000 | [diff] [blame] | 33 | #include <paths.h> |
Erik Andersen | 42094cd | 2000-03-20 21:34:52 +0000 | [diff] [blame] | 34 | #include <signal.h> |
| 35 | #include <stdarg.h> |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 36 | #include <string.h> |
Erik Andersen | 4f3f757 | 2000-04-28 00:18:56 +0000 | [diff] [blame] | 37 | #include <termios.h> |
| 38 | #include <unistd.h> |
Eric Andersen | ed3ef50 | 2001-01-27 08:24:39 +0000 | [diff] [blame] | 39 | #include <limits.h> |
Erik Andersen | 42094cd | 2000-03-20 21:34:52 +0000 | [diff] [blame] | 40 | #include <sys/fcntl.h> |
| 41 | #include <sys/ioctl.h> |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 42 | #include <sys/mount.h> |
Erik Andersen | 42094cd | 2000-03-20 21:34:52 +0000 | [diff] [blame] | 43 | #include <sys/types.h> |
Erik Andersen | 42094cd | 2000-03-20 21:34:52 +0000 | [diff] [blame] | 44 | #include <sys/wait.h> |
Eric Andersen | cbe31da | 2001-02-20 06:14:08 +0000 | [diff] [blame] | 45 | #include "busybox.h" |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 46 | #ifdef CONFIG_SYSLOGD |
Erik Andersen | 4f3f757 | 2000-04-28 00:18:56 +0000 | [diff] [blame] | 47 | # include <sys/syslog.h> |
| 48 | #endif |
| 49 | |
Pavel Roskin | 9c5fcc3 | 2000-07-17 23:45:12 +0000 | [diff] [blame] | 50 | |
Eric Andersen | bd22ed8 | 2000-07-08 18:55:24 +0000 | [diff] [blame] | 51 | /* From <linux/vt.h> */ |
| 52 | struct vt_stat { |
| 53 | unsigned short v_active; /* active vt */ |
| 54 | unsigned short v_signal; /* signal to send */ |
| 55 | unsigned short v_state; /* vt bitmask */ |
| 56 | }; |
Mark Whitley | 59ab025 | 2001-01-23 22:30:04 +0000 | [diff] [blame] | 57 | static const int VT_GETSTATE = 0x5603; /* get global vt state info */ |
Eric Andersen | bd22ed8 | 2000-07-08 18:55:24 +0000 | [diff] [blame] | 58 | |
| 59 | /* From <linux/serial.h> */ |
| 60 | struct serial_struct { |
| 61 | int type; |
| 62 | int line; |
| 63 | int port; |
| 64 | int irq; |
| 65 | int flags; |
| 66 | int xmit_fifo_size; |
| 67 | int custom_divisor; |
| 68 | int baud_base; |
| 69 | unsigned short close_delay; |
| 70 | char reserved_char[2]; |
| 71 | int hub6; |
| 72 | unsigned short closing_wait; /* time to wait before closing */ |
| 73 | unsigned short closing_wait2; /* no longer used... */ |
| 74 | int reserved[4]; |
| 75 | }; |
| 76 | |
| 77 | |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 78 | #if (__GNU_LIBRARY__ > 5) || defined(__dietlibc__) |
| 79 | #include <sys/reboot.h> |
| 80 | #define init_reboot(magic) reboot(magic) |
| 81 | #else |
| 82 | #define init_reboot(magic) reboot(0xfee1dead, 672274793, magic) |
| 83 | #endif |
Erik Andersen | 4f3f757 | 2000-04-28 00:18:56 +0000 | [diff] [blame] | 84 | |
| 85 | #ifndef RB_HALT_SYSTEM |
Mark Whitley | 59ab025 | 2001-01-23 22:30:04 +0000 | [diff] [blame] | 86 | static const int RB_HALT_SYSTEM = 0xcdef0123; |
| 87 | static const int RB_ENABLE_CAD = 0x89abcdef; |
| 88 | static const int RB_DISABLE_CAD = 0; |
Erik Andersen | 4f3f757 | 2000-04-28 00:18:56 +0000 | [diff] [blame] | 89 | #define RB_POWER_OFF 0x4321fedc |
Mark Whitley | 59ab025 | 2001-01-23 22:30:04 +0000 | [diff] [blame] | 90 | static const int RB_AUTOBOOT = 0x01234567; |
Eric Andersen | 2f2da90 | 2001-04-09 23:54:15 +0000 | [diff] [blame] | 91 | #endif |
Eric Andersen | b6b519b | 2001-04-09 23:52:18 +0000 | [diff] [blame] | 92 | |
Eric Andersen | 41492d6 | 2001-02-23 00:05:56 +0000 | [diff] [blame] | 93 | #ifndef _PATH_STDPATH |
Erik Andersen | 4f3f757 | 2000-04-28 00:18:56 +0000 | [diff] [blame] | 94 | #define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin" |
Eric Andersen | 41492d6 | 2001-02-23 00:05:56 +0000 | [diff] [blame] | 95 | #endif |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 96 | |
Erik Andersen | 983b51b | 2000-04-04 18:14:25 +0000 | [diff] [blame] | 97 | |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 98 | #if defined CONFIG_FEATURE_INIT_COREDUMPS |
Erik Andersen | 983b51b | 2000-04-04 18:14:25 +0000 | [diff] [blame] | 99 | /* |
Erik Andersen | 183da4a | 2000-04-04 18:36:37 +0000 | [diff] [blame] | 100 | * When a file named CORE_ENABLE_FLAG_FILE exists, setrlimit is called |
| 101 | * before processes are spawned to set core file size as unlimited. |
| 102 | * This is for debugging only. Don't use this is production, unless |
| 103 | * you want core dumps lying about.... |
Erik Andersen | 983b51b | 2000-04-04 18:14:25 +0000 | [diff] [blame] | 104 | */ |
| 105 | #define CORE_ENABLE_FLAG_FILE "/.init_enable_core" |
| 106 | #include <sys/resource.h> |
| 107 | #include <sys/time.h> |
Erik Andersen | 183da4a | 2000-04-04 18:36:37 +0000 | [diff] [blame] | 108 | #endif |
Erik Andersen | 983b51b | 2000-04-04 18:14:25 +0000 | [diff] [blame] | 109 | |
Erik Andersen | 4d1d011 | 1999-12-17 18:44:15 +0000 | [diff] [blame] | 110 | #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c)) |
Erik Andersen | 4d1d011 | 1999-12-17 18:44:15 +0000 | [diff] [blame] | 111 | |
Eric Andersen | b6b519b | 2001-04-09 23:52:18 +0000 | [diff] [blame] | 112 | #if __GNU_LIBRARY__ > 5 |
| 113 | #include <sys/kdaemon.h> |
Erik Andersen | 4f3f757 | 2000-04-28 00:18:56 +0000 | [diff] [blame] | 114 | #else |
Eric Andersen | b6b519b | 2001-04-09 23:52:18 +0000 | [diff] [blame] | 115 | extern int bdflush (int func, long int data); |
| 116 | #endif |
Erik Andersen | 4f3f757 | 2000-04-28 00:18:56 +0000 | [diff] [blame] | 117 | |
Eric Andersen | 0ecb54a | 1999-12-05 23:24:55 +0000 | [diff] [blame] | 118 | |
Matt Kraai | 7bd773c | 2001-06-12 20:55:02 +0000 | [diff] [blame] | 119 | #define SHELL "/bin/sh" /* Default shell */ |
| 120 | #define LOGIN_SHELL "-" SHELL /* Default login shell */ |
Erik Andersen | 42094cd | 2000-03-20 21:34:52 +0000 | [diff] [blame] | 121 | #define INITTAB "/etc/inittab" /* inittab file location */ |
Erik Andersen | 96e2abd | 2000-01-07 11:40:44 +0000 | [diff] [blame] | 122 | #ifndef INIT_SCRIPT |
Erik Andersen | 42094cd | 2000-03-20 21:34:52 +0000 | [diff] [blame] | 123 | #define INIT_SCRIPT "/etc/init.d/rcS" /* Default sysinit script. */ |
Erik Andersen | 96e2abd | 2000-01-07 11:40:44 +0000 | [diff] [blame] | 124 | #endif |
Erik Andersen | 9c88cac | 1999-12-30 09:25:17 +0000 | [diff] [blame] | 125 | |
Eric Andersen | 41492d6 | 2001-02-23 00:05:56 +0000 | [diff] [blame] | 126 | #define MAXENV 16 /* Number of env. vars */ |
| 127 | //static const int MAXENV = 16; /* Number of env. vars */ |
Mark Whitley | 59ab025 | 2001-01-23 22:30:04 +0000 | [diff] [blame] | 128 | static const int LOG = 0x1; |
| 129 | static const int CONSOLE = 0x2; |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 130 | |
| 131 | /* Allowed init action types */ |
| 132 | typedef enum { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 133 | SYSINIT = 1, |
| 134 | RESPAWN, |
| 135 | ASKFIRST, |
| 136 | WAIT, |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 137 | ONCE, |
Eric Andersen | c97ec34 | 2001-04-03 18:01:51 +0000 | [diff] [blame] | 138 | CTRLALTDEL, |
| 139 | SHUTDOWN |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 140 | } initActionEnum; |
| 141 | |
Erik Andersen | 42094cd | 2000-03-20 21:34:52 +0000 | [diff] [blame] | 142 | /* A mapping between "inittab" action name strings and action type codes. */ |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 143 | typedef struct initActionType { |
| 144 | const char *name; |
| 145 | initActionEnum action; |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 146 | } initActionType; |
| 147 | |
| 148 | static const struct initActionType actions[] = { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 149 | {"sysinit", SYSINIT}, |
| 150 | {"respawn", RESPAWN}, |
| 151 | {"askfirst", ASKFIRST}, |
| 152 | {"wait", WAIT}, |
| 153 | {"once", ONCE}, |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 154 | {"ctrlaltdel", CTRLALTDEL}, |
Eric Andersen | c97ec34 | 2001-04-03 18:01:51 +0000 | [diff] [blame] | 155 | {"shutdown", SHUTDOWN}, |
Pavel Roskin | 9027bcf | 2000-07-14 15:44:25 +0000 | [diff] [blame] | 156 | {0, 0} |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 157 | }; |
| 158 | |
Erik Andersen | 42094cd | 2000-03-20 21:34:52 +0000 | [diff] [blame] | 159 | /* Set up a linked list of initActions, to be read from inittab */ |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 160 | typedef struct initActionTag initAction; |
| 161 | struct initActionTag { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 162 | pid_t pid; |
| 163 | char process[256]; |
| 164 | char console[256]; |
| 165 | initAction *nextPtr; |
| 166 | initActionEnum action; |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 167 | }; |
Eric Andersen | 3e6ff90 | 2001-03-09 21:24:12 +0000 | [diff] [blame] | 168 | static initAction *initActionList = NULL; |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 169 | |
| 170 | |
Matt Kraai | 439e3df | 2001-07-23 14:52:08 +0000 | [diff] [blame] | 171 | static char *secondConsole = VC_2; |
| 172 | static char *thirdConsole = VC_3; |
| 173 | static char *fourthConsole = VC_4; |
| 174 | static char *log = VC_5; |
Erik Andersen | 42094cd | 2000-03-20 21:34:52 +0000 | [diff] [blame] | 175 | static int kernelVersion = 0; |
| 176 | static char termType[32] = "TERM=linux"; |
| 177 | static char console[32] = _PATH_CONSOLE; |
| 178 | |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 179 | static void delete_initAction(initAction * action); |
Eric Andersen | 0460ff2 | 1999-10-25 23:32:44 +0000 | [diff] [blame] | 180 | |
Eric Andersen | 74400cc | 2001-10-18 04:11:39 +0000 | [diff] [blame] | 181 | static void loop_forever(void) |
Matt Kraai | 67a4640 | 2001-06-03 05:55:52 +0000 | [diff] [blame] | 182 | { |
| 183 | while (1) |
| 184 | sleep (1); |
| 185 | } |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 186 | |
Erik Andersen | 42094cd | 2000-03-20 21:34:52 +0000 | [diff] [blame] | 187 | /* Print a message to the specified device. |
| 188 | * Device may be bitwise-or'd from LOG | CONSOLE */ |
| 189 | static void message(int device, char *fmt, ...) |
Erik Andersen | 93d6513 | 2000-04-06 08:06:36 +0000 | [diff] [blame] | 190 | __attribute__ ((format (printf, 2, 3))); |
| 191 | static void message(int device, char *fmt, ...) |
Eric Andersen | 0460ff2 | 1999-10-25 23:32:44 +0000 | [diff] [blame] | 192 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 193 | va_list arguments; |
| 194 | int fd; |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 195 | |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 196 | #ifdef CONFIG_SYSLOGD |
Eric Andersen | 4c78147 | 1999-11-26 08:12:56 +0000 | [diff] [blame] | 197 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 198 | /* Log the message to syslogd */ |
| 199 | if (device & LOG) { |
| 200 | char msg[1024]; |
Eric Andersen | 4c78147 | 1999-11-26 08:12:56 +0000 | [diff] [blame] | 201 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 202 | va_start(arguments, fmt); |
| 203 | vsnprintf(msg, sizeof(msg), fmt, arguments); |
| 204 | va_end(arguments); |
Eric Andersen | 1644db9 | 2001-09-05 20:18:15 +0000 | [diff] [blame] | 205 | syslog_msg(LOG_USER, LOG_USER|LOG_INFO, msg); |
Eric Andersen | 3ae0c78 | 1999-11-04 01:13:21 +0000 | [diff] [blame] | 206 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 207 | #else |
| 208 | static int log_fd = -1; |
| 209 | |
| 210 | /* Take full control of the log tty, and never close it. |
| 211 | * It's mine, all mine! Muhahahaha! */ |
| 212 | if (log_fd < 0) { |
| 213 | if (log == NULL) { |
| 214 | /* don't even try to log, because there is no such console */ |
| 215 | log_fd = -2; |
| 216 | /* log to main console instead */ |
| 217 | device = CONSOLE; |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 218 | } else if ((log_fd = device_open(log, O_RDWR|O_NDELAY)) < 0) { |
| 219 | log_fd = -2; |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 220 | fprintf(stderr, "Bummer, can't write to log on %s!\n", log); |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 221 | log = NULL; |
| 222 | device = CONSOLE; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 223 | } |
| 224 | } |
| 225 | if ((device & LOG) && (log_fd >= 0)) { |
| 226 | va_start(arguments, fmt); |
| 227 | vdprintf(log_fd, fmt, arguments); |
| 228 | va_end(arguments); |
| 229 | } |
Eric Andersen | 4c78147 | 1999-11-26 08:12:56 +0000 | [diff] [blame] | 230 | #endif |
| 231 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 232 | if (device & CONSOLE) { |
| 233 | /* Always send console messages to /dev/console so people will see them. */ |
| 234 | if ( |
| 235 | (fd = |
| 236 | device_open(_PATH_CONSOLE, |
| 237 | O_WRONLY | O_NOCTTY | O_NDELAY)) >= 0) { |
| 238 | va_start(arguments, fmt); |
| 239 | vdprintf(fd, fmt, arguments); |
| 240 | va_end(arguments); |
| 241 | close(fd); |
| 242 | } else { |
| 243 | fprintf(stderr, "Bummer, can't print: "); |
| 244 | va_start(arguments, fmt); |
| 245 | vfprintf(stderr, fmt, arguments); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 246 | va_end(arguments); |
| 247 | } |
Eric Andersen | 3ae0c78 | 1999-11-04 01:13:21 +0000 | [diff] [blame] | 248 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 249 | } |
| 250 | |
Eric Andersen | 0460ff2 | 1999-10-25 23:32:44 +0000 | [diff] [blame] | 251 | /* Set terminal settings to reasonable defaults */ |
Eric Andersen | 3e6ff90 | 2001-03-09 21:24:12 +0000 | [diff] [blame] | 252 | static void set_term(int fd) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 253 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 254 | struct termios tty; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 255 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 256 | tcgetattr(fd, &tty); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 257 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 258 | /* set control chars */ |
Eric Andersen | 3849f9b | 2000-07-10 19:56:47 +0000 | [diff] [blame] | 259 | tty.c_cc[VINTR] = 3; /* C-c */ |
| 260 | tty.c_cc[VQUIT] = 28; /* C-\ */ |
| 261 | tty.c_cc[VERASE] = 127; /* C-? */ |
| 262 | tty.c_cc[VKILL] = 21; /* C-u */ |
| 263 | tty.c_cc[VEOF] = 4; /* C-d */ |
| 264 | tty.c_cc[VSTART] = 17; /* C-q */ |
| 265 | tty.c_cc[VSTOP] = 19; /* C-s */ |
| 266 | tty.c_cc[VSUSP] = 26; /* C-z */ |
Eric Andersen | 02bc25b | 2000-07-06 21:29:32 +0000 | [diff] [blame] | 267 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 268 | /* use line dicipline 0 */ |
| 269 | tty.c_line = 0; |
Eric Andersen | 7f1acfd | 1999-10-29 23:09:13 +0000 | [diff] [blame] | 270 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 271 | /* Make it be sane */ |
Erik Andersen | 6c41c44 | 2000-03-19 05:13:49 +0000 | [diff] [blame] | 272 | tty.c_cflag &= CBAUD|CBAUDEX|CSIZE|CSTOPB|PARENB|PARODD; |
Eric Andersen | d886292 | 2001-04-23 15:14:11 +0000 | [diff] [blame] | 273 | tty.c_cflag |= CREAD|HUPCL|CLOCAL; |
| 274 | |
Eric Andersen | 08b1034 | 1999-11-19 02:38:58 +0000 | [diff] [blame] | 275 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 276 | /* input modes */ |
| 277 | tty.c_iflag = ICRNL | IXON | IXOFF; |
Eric Andersen | 08b1034 | 1999-11-19 02:38:58 +0000 | [diff] [blame] | 278 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 279 | /* output modes */ |
| 280 | tty.c_oflag = OPOST | ONLCR; |
Eric Andersen | 7f1acfd | 1999-10-29 23:09:13 +0000 | [diff] [blame] | 281 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 282 | /* local modes */ |
| 283 | tty.c_lflag = |
| 284 | ISIG | ICANON | ECHO | ECHOE | ECHOK | ECHOCTL | ECHOKE | IEXTEN; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 285 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 286 | tcsetattr(fd, TCSANOW, &tty); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 287 | } |
| 288 | |
Eric Andersen | bc5941a | 2000-12-06 23:17:37 +0000 | [diff] [blame] | 289 | /* How much memory does this machine have? |
| 290 | Units are kBytes to avoid overflow on 4GB machines */ |
Eric Andersen | 74400cc | 2001-10-18 04:11:39 +0000 | [diff] [blame] | 291 | static int check_free_memory(void) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 292 | { |
Erik Andersen | d07ee46 | 2000-02-21 21:26:32 +0000 | [diff] [blame] | 293 | struct sysinfo info; |
Eric Andersen | bc5941a | 2000-12-06 23:17:37 +0000 | [diff] [blame] | 294 | unsigned int result, u, s=10; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 295 | |
Erik Andersen | d07ee46 | 2000-02-21 21:26:32 +0000 | [diff] [blame] | 296 | if (sysinfo(&info) != 0) { |
Eric Andersen | 53cfb7e | 2001-01-31 17:29:47 +0000 | [diff] [blame] | 297 | perror_msg("Error checking free memory"); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 298 | return -1; |
Eric Andersen | abc7d59 | 1999-10-19 00:27:50 +0000 | [diff] [blame] | 299 | } |
Eric Andersen | bc5941a | 2000-12-06 23:17:37 +0000 | [diff] [blame] | 300 | |
| 301 | /* Kernels 2.0.x and 2.2.x return info.mem_unit==0 with values in bytes. |
| 302 | * Kernels 2.4.0 return info.mem_unit in bytes. */ |
| 303 | u = info.mem_unit; |
| 304 | if (u==0) u=1; |
| 305 | while ( (u&1) == 0 && s > 0 ) { u>>=1; s--; } |
| 306 | result = (info.totalram>>s) + (info.totalswap>>s); |
| 307 | result = result*u; |
| 308 | if (result < 0) result = INT_MAX; |
| 309 | return result; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 310 | } |
| 311 | |
Eric Andersen | 74400cc | 2001-10-18 04:11:39 +0000 | [diff] [blame] | 312 | static void console_init(void) |
Eric Andersen | 0460ff2 | 1999-10-25 23:32:44 +0000 | [diff] [blame] | 313 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 314 | int fd; |
| 315 | int tried_devcons = 0; |
| 316 | int tried_vtprimary = 0; |
Erik Andersen | 029011b | 2000-03-04 21:19:32 +0000 | [diff] [blame] | 317 | struct vt_stat vt; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 318 | struct serial_struct sr; |
| 319 | char *s; |
Eric Andersen | 0460ff2 | 1999-10-25 23:32:44 +0000 | [diff] [blame] | 320 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 321 | if ((s = getenv("TERM")) != NULL) { |
| 322 | snprintf(termType, sizeof(termType) - 1, "TERM=%s", s); |
| 323 | } |
Erik Andersen | ac6e71f | 2000-01-08 22:04:33 +0000 | [diff] [blame] | 324 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 325 | if ((s = getenv("CONSOLE")) != NULL) { |
Matt Kraai | 1844770 | 2001-05-18 21:24:58 +0000 | [diff] [blame] | 326 | safe_strncpy(console, s, sizeof(console)); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 327 | } |
Eric Andersen | fbb39c8 | 1999-11-08 17:00:52 +0000 | [diff] [blame] | 328 | #if #cpu(sparc) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 329 | /* sparc kernel supports console=tty[ab] parameter which is also |
| 330 | * passed to init, so catch it here */ |
| 331 | else if ((s = getenv("console")) != NULL) { |
| 332 | /* remap tty[ab] to /dev/ttyS[01] */ |
| 333 | if (strcmp(s, "ttya") == 0) |
Matt Kraai | 439e3df | 2001-07-23 14:52:08 +0000 | [diff] [blame] | 334 | safe_strncpy(console, SC_0, sizeof(console)); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 335 | else if (strcmp(s, "ttyb") == 0) |
Matt Kraai | 439e3df | 2001-07-23 14:52:08 +0000 | [diff] [blame] | 336 | safe_strncpy(console, SC_1, sizeof(console)); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 337 | } |
Eric Andersen | 219d6f5 | 1999-11-02 19:43:01 +0000 | [diff] [blame] | 338 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 339 | else { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 340 | /* 2.2 kernels: identify the real console backend and try to use it */ |
| 341 | if (ioctl(0, TIOCGSERIAL, &sr) == 0) { |
| 342 | /* this is a serial console */ |
Matt Kraai | 439e3df | 2001-07-23 14:52:08 +0000 | [diff] [blame] | 343 | snprintf(console, sizeof(console) - 1, SC_FORMAT, sr.line); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 344 | } else if (ioctl(0, VT_GETSTATE, &vt) == 0) { |
| 345 | /* this is linux virtual tty */ |
Matt Kraai | 439e3df | 2001-07-23 14:52:08 +0000 | [diff] [blame] | 346 | snprintf(console, sizeof(console) - 1, VC_FORMAT, vt.v_active); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 347 | } else { |
Matt Kraai | 1844770 | 2001-05-18 21:24:58 +0000 | [diff] [blame] | 348 | safe_strncpy(console, _PATH_CONSOLE, sizeof(console)); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 349 | tried_devcons++; |
| 350 | } |
Eric Andersen | 07e5297 | 1999-11-07 07:38:08 +0000 | [diff] [blame] | 351 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 352 | |
| 353 | while ((fd = open(console, O_RDONLY | O_NONBLOCK)) < 0) { |
| 354 | /* Can't open selected console -- try /dev/console */ |
| 355 | if (!tried_devcons) { |
| 356 | tried_devcons++; |
Matt Kraai | 1844770 | 2001-05-18 21:24:58 +0000 | [diff] [blame] | 357 | safe_strncpy(console, _PATH_CONSOLE, sizeof(console)); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 358 | continue; |
| 359 | } |
| 360 | /* Can't open selected console -- try vt1 */ |
| 361 | if (!tried_vtprimary) { |
| 362 | tried_vtprimary++; |
Matt Kraai | 439e3df | 2001-07-23 14:52:08 +0000 | [diff] [blame] | 363 | safe_strncpy(console, VC_1, sizeof(console)); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 364 | continue; |
| 365 | } |
| 366 | break; |
| 367 | } |
| 368 | if (fd < 0) { |
| 369 | /* Perhaps we should panic here? */ |
Matt Kraai | 1844770 | 2001-05-18 21:24:58 +0000 | [diff] [blame] | 370 | safe_strncpy(console, "/dev/null", sizeof(console)); |
Eric Andersen | 07e5297 | 1999-11-07 07:38:08 +0000 | [diff] [blame] | 371 | } else { |
Eric Andersen | 7e3bf6e | 2000-09-14 22:01:31 +0000 | [diff] [blame] | 372 | /* check for serial console and disable logging to tty5 & running a |
| 373 | * shell to tty2-4 */ |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 374 | if (ioctl(0, TIOCGSERIAL, &sr) == 0) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 375 | log = NULL; |
| 376 | secondConsole = NULL; |
Eric Andersen | 7e3bf6e | 2000-09-14 22:01:31 +0000 | [diff] [blame] | 377 | thirdConsole = NULL; |
| 378 | fourthConsole = NULL; |
Erik Andersen | fa4718e | 2000-02-21 19:25:12 +0000 | [diff] [blame] | 379 | /* Force the TERM setting to vt102 for serial console -- |
| 380 | * iff TERM is set to linux (the default) */ |
| 381 | if (strcmp( termType, "TERM=linux" ) == 0) |
Matt Kraai | 1844770 | 2001-05-18 21:24:58 +0000 | [diff] [blame] | 382 | safe_strncpy(termType, "TERM=vt102", sizeof(termType)); |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 383 | message(LOG | CONSOLE, |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 384 | "serial console detected. Disabling virtual terminals.\n"); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 385 | } |
| 386 | close(fd); |
Eric Andersen | 07e5297 | 1999-11-07 07:38:08 +0000 | [diff] [blame] | 387 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 388 | message(LOG, "console=%s\n", console); |
Eric Andersen | 0460ff2 | 1999-10-25 23:32:44 +0000 | [diff] [blame] | 389 | } |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 390 | |
| 391 | static void fixup_argv(int argc, char **argv, char *new_argv0) |
| 392 | { |
| 393 | int len; |
| 394 | /* Fix up argv[0] to be certain we claim to be init */ |
| 395 | len = strlen(argv[0]); |
| 396 | memset(argv[0], 0, len); |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 397 | safe_strncpy(argv[0], new_argv0, len + 1); |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 398 | |
| 399 | /* Wipe argv[1]-argv[N] so they don't clutter the ps listing */ |
| 400 | len = 1; |
| 401 | while (argc > len) { |
| 402 | memset(argv[len], 0, strlen(argv[len])); |
| 403 | len++; |
| 404 | } |
| 405 | } |
| 406 | |
Eric Andersen | 0460ff2 | 1999-10-25 23:32:44 +0000 | [diff] [blame] | 407 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 408 | static pid_t run(char *command, char *terminal, int get_enter) |
Eric Andersen | 0460ff2 | 1999-10-25 23:32:44 +0000 | [diff] [blame] | 409 | { |
Eric Andersen | 7f19785 | 2001-03-16 01:14:04 +0000 | [diff] [blame] | 410 | int i, j; |
Eric Andersen | 477aedd | 2001-02-20 18:01:50 +0000 | [diff] [blame] | 411 | int fd; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 412 | pid_t pid; |
Eric Andersen | 7f19785 | 2001-03-16 01:14:04 +0000 | [diff] [blame] | 413 | char *tmpCmd, *s; |
| 414 | char *cmd[255], *cmdpath; |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 415 | char buf[255]; |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 416 | struct stat sb; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 417 | static const char press_enter[] = |
| 418 | |
Eric Andersen | 3862423 | 2001-01-25 00:04:16 +0000 | [diff] [blame] | 419 | #ifdef CUSTOMIZED_BANNER |
| 420 | #include CUSTOMIZED_BANNER |
| 421 | #endif |
| 422 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 423 | "\nPlease press Enter to activate this console. "; |
Eric Andersen | 477aedd | 2001-02-20 18:01:50 +0000 | [diff] [blame] | 424 | char *environment[MAXENV+1] = { |
Eric Andersen | 7f19785 | 2001-03-16 01:14:04 +0000 | [diff] [blame] | 425 | termType, |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 426 | "HOME=/", |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 427 | "PATH=" _PATH_STDPATH, |
Matt Kraai | 7bd773c | 2001-06-12 20:55:02 +0000 | [diff] [blame] | 428 | "SHELL=" SHELL, |
Eric Andersen | 7f19785 | 2001-03-16 01:14:04 +0000 | [diff] [blame] | 429 | "USER=root", |
| 430 | NULL |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 431 | }; |
Erik Andersen | ac6e71f | 2000-01-08 22:04:33 +0000 | [diff] [blame] | 432 | |
Eric Andersen | 7f19785 | 2001-03-16 01:14:04 +0000 | [diff] [blame] | 433 | /* inherit environment to the child, merging our values -andy */ |
| 434 | for (i=0; environ[i]; i++) { |
| 435 | for (j=0; environment[j]; j++) { |
| 436 | s = strchr(environment[j], '='); |
| 437 | if (!strncmp(environ[i], environment[j], s - environment[j])) |
| 438 | break; |
| 439 | } |
| 440 | if (!environment[j]) { |
| 441 | environment[j++] = environ[i]; |
| 442 | environment[j] = NULL; |
| 443 | } |
Eric Andersen | 477aedd | 2001-02-20 18:01:50 +0000 | [diff] [blame] | 444 | } |
| 445 | |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 446 | #if !defined(__UCLIBC__) || defined(__UCLIBC_HAS_MMU__) |
| 447 | if ((pid = fork()) == 0) |
| 448 | #else |
| 449 | if ((pid = vfork()) == 0) |
| 450 | #endif |
| 451 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 452 | /* Clean up */ |
Eric Andersen | fb6a508 | 2000-09-13 16:15:29 +0000 | [diff] [blame] | 453 | ioctl(0, TIOCNOTTY, 0); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 454 | close(0); |
| 455 | close(1); |
| 456 | close(2); |
| 457 | setsid(); |
Eric Andersen | 0460ff2 | 1999-10-25 23:32:44 +0000 | [diff] [blame] | 458 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 459 | /* Reset signal handlers set for parent process */ |
| 460 | signal(SIGUSR1, SIG_DFL); |
| 461 | signal(SIGUSR2, SIG_DFL); |
| 462 | signal(SIGINT, SIG_DFL); |
| 463 | signal(SIGTERM, SIG_DFL); |
| 464 | signal(SIGHUP, SIG_DFL); |
Eric Andersen | 2f6c04f | 1999-11-01 23:59:44 +0000 | [diff] [blame] | 465 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 466 | if ((fd = device_open(terminal, O_RDWR)) < 0) { |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 467 | if (stat(terminal, &sb) != 0) { |
Eric Andersen | 53f5061 | 2001-03-14 09:01:11 +0000 | [diff] [blame] | 468 | message(LOG | CONSOLE, "device '%s' does not exist.\n", |
| 469 | terminal); |
| 470 | exit(1); |
| 471 | } |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 472 | message(LOG | CONSOLE, "Bummer, can't open %s\n", terminal); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 473 | exit(1); |
| 474 | } |
| 475 | dup2(fd, 0); |
| 476 | dup2(fd, 1); |
| 477 | dup2(fd, 2); |
Eric Andersen | fb6a508 | 2000-09-13 16:15:29 +0000 | [diff] [blame] | 478 | ioctl(0, TIOCSCTTY, 1); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 479 | tcsetpgrp(0, getpgrp()); |
| 480 | set_term(0); |
| 481 | |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 482 | /* See if any special /bin/sh requiring characters are present */ |
| 483 | if (strpbrk(command, "~`!$^&*()=|\\{}[];\"'<>?") != NULL) { |
| 484 | cmd[0] = SHELL; |
| 485 | cmd[1] = "-c"; |
| 486 | strcpy(buf, "exec "); |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 487 | safe_strncpy(buf + sizeof("exec "), command, |
| 488 | sizeof(buf) - sizeof("exec ")); |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 489 | cmd[2] = buf; |
| 490 | cmd[3] = NULL; |
| 491 | } else { |
| 492 | /* Convert command (char*) into cmd (char**, one word per string) */ |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 493 | safe_strncpy(buf, command, sizeof(buf)); |
| 494 | s = buf; |
| 495 | for (tmpCmd = buf, i = 0; |
| 496 | (tmpCmd = strsep(&s, " \t")) != NULL;) { |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 497 | if (*tmpCmd != '\0') { |
| 498 | cmd[i] = tmpCmd; |
| 499 | tmpCmd++; |
| 500 | i++; |
| 501 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 502 | } |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 503 | cmd[i] = NULL; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 504 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 505 | |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 506 | cmdpath = cmd[0]; |
Eric Andersen | 7e3bf6e | 2000-09-14 22:01:31 +0000 | [diff] [blame] | 507 | |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 508 | /* |
| 509 | Interactive shells want to see a dash in argv[0]. This |
| 510 | typically is handled by login, argv will be setup this |
| 511 | way if a dash appears at the front of the command path |
Eric Andersen | 7e3bf6e | 2000-09-14 22:01:31 +0000 | [diff] [blame] | 512 | (like "-/bin/sh"). |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 513 | */ |
Eric Andersen | 7e3bf6e | 2000-09-14 22:01:31 +0000 | [diff] [blame] | 514 | |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 515 | if (*cmdpath == '-') { |
Eric Andersen | 7e3bf6e | 2000-09-14 22:01:31 +0000 | [diff] [blame] | 516 | |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 517 | /* skip over the dash */ |
| 518 | ++cmdpath; |
Eric Andersen | 7e3bf6e | 2000-09-14 22:01:31 +0000 | [diff] [blame] | 519 | |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 520 | /* find the last component in the command pathname */ |
| 521 | s = get_last_path_component(cmdpath); |
Eric Andersen | 7e3bf6e | 2000-09-14 22:01:31 +0000 | [diff] [blame] | 522 | |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 523 | /* make a new argv[0] */ |
| 524 | if ((cmd[0] = malloc(strlen(s)+2)) == NULL) { |
| 525 | message(LOG | CONSOLE, "malloc failed"); |
| 526 | cmd[0] = cmdpath; |
| 527 | } else { |
| 528 | cmd[0][0] = '-'; |
| 529 | strcpy(cmd[0]+1, s); |
| 530 | } |
| 531 | } |
| 532 | |
| 533 | if (get_enter == TRUE) { |
| 534 | /* |
| 535 | * Save memory by not exec-ing anything large (like a shell) |
| 536 | * before the user wants it. This is critical if swap is not |
| 537 | * enabled and the system has low memory. Generally this will |
| 538 | * be run on the second virtual console, and the first will |
| 539 | * be allowed to start a shell or whatever an init script |
| 540 | * specifies. |
| 541 | */ |
| 542 | #ifdef DEBUG_INIT |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 543 | message(LOG, "Waiting for enter to start '%s' (pid %d, console %s)\n", |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 544 | cmd[0], getpid(), terminal); |
| 545 | #endif |
| 546 | write(fileno(stdout), press_enter, sizeof(press_enter) - 1); |
| 547 | getc(stdin); |
| 548 | } |
| 549 | |
| 550 | #ifdef DEBUG_INIT |
| 551 | /* Log the process name and args */ |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 552 | message(LOG, "Starting pid %d, console %s: '%s'\n", |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 553 | getpid(), terminal, command); |
| 554 | #endif |
Eric Andersen | 7e3bf6e | 2000-09-14 22:01:31 +0000 | [diff] [blame] | 555 | |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 556 | #if defined CONFIG_FEATURE_INIT_COREDUMPS |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 557 | if (stat (CORE_ENABLE_FLAG_FILE, &sb) == 0) { |
| 558 | struct rlimit limit; |
| 559 | limit.rlim_cur = RLIM_INFINITY; |
| 560 | limit.rlim_max = RLIM_INFINITY; |
| 561 | setrlimit(RLIMIT_CORE, &limit); |
Erik Andersen | 983b51b | 2000-04-04 18:14:25 +0000 | [diff] [blame] | 562 | } |
Erik Andersen | 183da4a | 2000-04-04 18:36:37 +0000 | [diff] [blame] | 563 | #endif |
Erik Andersen | 983b51b | 2000-04-04 18:14:25 +0000 | [diff] [blame] | 564 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 565 | /* Now run it. The new program will take over this PID, |
| 566 | * so nothing further in init.c should be run. */ |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 567 | execve(cmdpath, cmd, environment); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 568 | |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 569 | /* We're still here? Some error happened. */ |
| 570 | message(LOG | CONSOLE, "Bummer, could not run '%s': %s\n", cmdpath, |
| 571 | strerror(errno)); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 572 | exit(-1); |
Erik Andersen | 05df239 | 2000-01-13 04:43:48 +0000 | [diff] [blame] | 573 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 574 | return pid; |
Eric Andersen | 0460ff2 | 1999-10-25 23:32:44 +0000 | [diff] [blame] | 575 | } |
| 576 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 577 | static int waitfor(char *command, char *terminal, int get_enter) |
Erik Andersen | 0e3782f | 2000-01-07 02:54:55 +0000 | [diff] [blame] | 578 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 579 | int status, wpid; |
| 580 | int pid = run(command, terminal, get_enter); |
Erik Andersen | 0e3782f | 2000-01-07 02:54:55 +0000 | [diff] [blame] | 581 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 582 | while (1) { |
| 583 | wpid = wait(&status); |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 584 | if (wpid > 0 && wpid != pid) { |
| 585 | continue; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 586 | } |
| 587 | if (wpid == pid) |
| 588 | break; |
Erik Andersen | 0e3782f | 2000-01-07 02:54:55 +0000 | [diff] [blame] | 589 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 590 | return wpid; |
Erik Andersen | 0e3782f | 2000-01-07 02:54:55 +0000 | [diff] [blame] | 591 | } |
| 592 | |
Eric Andersen | 219d6f5 | 1999-11-02 19:43:01 +0000 | [diff] [blame] | 593 | /* Make sure there is enough memory to do something useful. * |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 594 | * Calls "swapon -a" if needed so be sure /etc/fstab is present... */ |
Eric Andersen | 74400cc | 2001-10-18 04:11:39 +0000 | [diff] [blame] | 595 | static void check_memory(void) |
Eric Andersen | 219d6f5 | 1999-11-02 19:43:01 +0000 | [diff] [blame] | 596 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 597 | struct stat statBuf; |
Eric Andersen | 219d6f5 | 1999-11-02 19:43:01 +0000 | [diff] [blame] | 598 | |
Erik Andersen | d07ee46 | 2000-02-21 21:26:32 +0000 | [diff] [blame] | 599 | if (check_free_memory() > 1000) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 600 | return; |
| 601 | |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 602 | #if !defined(__UCLIBC__) || defined(__UCLIBC_HAS_MMU__) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 603 | if (stat("/etc/fstab", &statBuf) == 0) { |
Erik Andersen | 61677fe | 2000-04-13 01:18:56 +0000 | [diff] [blame] | 604 | /* swapon -a requires /proc typically */ |
| 605 | waitfor("mount proc /proc -t proc", console, FALSE); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 606 | /* Try to turn on swap */ |
Erik Andersen | 61677fe | 2000-04-13 01:18:56 +0000 | [diff] [blame] | 607 | waitfor("swapon -a", console, FALSE); |
Erik Andersen | d07ee46 | 2000-02-21 21:26:32 +0000 | [diff] [blame] | 608 | if (check_free_memory() < 1000) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 609 | goto goodnight; |
| 610 | } else |
| 611 | goto goodnight; |
Eric Andersen | 219d6f5 | 1999-11-02 19:43:01 +0000 | [diff] [blame] | 612 | return; |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 613 | #endif |
Eric Andersen | 219d6f5 | 1999-11-02 19:43:01 +0000 | [diff] [blame] | 614 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 615 | goodnight: |
| 616 | message(CONSOLE, |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 617 | "Sorry, your computer does not have enough memory.\n"); |
Matt Kraai | 67a4640 | 2001-06-03 05:55:52 +0000 | [diff] [blame] | 618 | loop_forever(); |
Eric Andersen | 219d6f5 | 1999-11-02 19:43:01 +0000 | [diff] [blame] | 619 | } |
| 620 | |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 621 | /* Run all commands to be run right before halt/reboot */ |
Eric Andersen | c97ec34 | 2001-04-03 18:01:51 +0000 | [diff] [blame] | 622 | static void run_actions(initActionEnum action) |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 623 | { |
Eric Andersen | 0d4e51d | 2001-03-15 19:18:21 +0000 | [diff] [blame] | 624 | initAction *a, *tmp; |
Eric Andersen | a4edd0e | 2001-03-15 21:04:18 +0000 | [diff] [blame] | 625 | for (a = initActionList; a; a = tmp) { |
| 626 | tmp = a->nextPtr; |
Eric Andersen | c97ec34 | 2001-04-03 18:01:51 +0000 | [diff] [blame] | 627 | if (a->action == action) { |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 628 | waitfor(a->process, a->console, FALSE); |
| 629 | delete_initAction(a); |
| 630 | } |
| 631 | } |
| 632 | } |
| 633 | |
| 634 | |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 635 | #ifndef DEBUG_INIT |
Eric Andersen | 8a8fbb8 | 1999-10-26 00:18:56 +0000 | [diff] [blame] | 636 | static void shutdown_system(void) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 637 | { |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 638 | |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 639 | /* first disable all our signals */ |
| 640 | sigemptyset(&block_signals); |
| 641 | sigaddset(&block_signals, SIGHUP); |
| 642 | sigaddset(&block_signals, SIGCHLD); |
| 643 | sigaddset(&block_signals, SIGUSR1); |
| 644 | sigaddset(&block_signals, SIGUSR2); |
| 645 | sigaddset(&block_signals, SIGINT); |
| 646 | sigaddset(&block_signals, SIGTERM); |
| 647 | sigprocmask(SIG_BLOCK, &block_signals, NULL); |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 648 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 649 | /* Allow Ctrl-Alt-Del to reboot system. */ |
Erik Andersen | 4f3f757 | 2000-04-28 00:18:56 +0000 | [diff] [blame] | 650 | init_reboot(RB_ENABLE_CAD); |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 651 | |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 652 | message(CONSOLE|LOG, "\nThe system is going down NOW !!\n"); |
Eric Andersen | cf8c9cf | 1999-11-05 00:31:46 +0000 | [diff] [blame] | 653 | sync(); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 654 | |
| 655 | /* Send signals to every process _except_ pid 1 */ |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 656 | message(CONSOLE|LOG, "Sending SIGTERM to all processes.\n"); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 657 | kill(-1, SIGTERM); |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 658 | sleep(1); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 659 | sync(); |
| 660 | |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 661 | message(CONSOLE|LOG, "Sending SIGKILL to all processes.\n"); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 662 | kill(-1, SIGKILL); |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 663 | sleep(1); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 664 | |
Matt Kraai | 8fc364e | 2001-04-12 20:12:16 +0000 | [diff] [blame] | 665 | /* run everything to be run at "shutdown" */ |
Eric Andersen | c97ec34 | 2001-04-03 18:01:51 +0000 | [diff] [blame] | 666 | run_actions(SHUTDOWN); |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 667 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 668 | sync(); |
Eric Andersen | bd22ed8 | 2000-07-08 18:55:24 +0000 | [diff] [blame] | 669 | if (kernelVersion > 0 && kernelVersion <= KERNEL_VERSION(2,2,11)) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 670 | /* bdflush, kupdate not needed for kernels >2.2.11 */ |
| 671 | bdflush(1, 0); |
| 672 | sync(); |
| 673 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 674 | } |
| 675 | |
Eric Andersen | 8a8fbb8 | 1999-10-26 00:18:56 +0000 | [diff] [blame] | 676 | static void halt_signal(int sig) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 677 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 678 | shutdown_system(); |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 679 | message(CONSOLE|LOG, |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 680 | "The system is halted. Press %s or turn off power\n", |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 681 | (secondConsole == NULL) /* serial console */ |
| 682 | ? "Reset" : "CTRL-ALT-DEL"); |
| 683 | sync(); |
Erik Andersen | 3fe39dc | 2000-01-25 18:13:53 +0000 | [diff] [blame] | 684 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 685 | /* allow time for last message to reach serial console */ |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 686 | sleep(2); |
Erik Andersen | 3fe39dc | 2000-01-25 18:13:53 +0000 | [diff] [blame] | 687 | |
Eric Andersen | bd22ed8 | 2000-07-08 18:55:24 +0000 | [diff] [blame] | 688 | if (sig == SIGUSR2 && kernelVersion >= KERNEL_VERSION(2,2,0)) |
Erik Andersen | 4f3f757 | 2000-04-28 00:18:56 +0000 | [diff] [blame] | 689 | init_reboot(RB_POWER_OFF); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 690 | else |
Erik Andersen | 4f3f757 | 2000-04-28 00:18:56 +0000 | [diff] [blame] | 691 | init_reboot(RB_HALT_SYSTEM); |
Matt Kraai | 67a4640 | 2001-06-03 05:55:52 +0000 | [diff] [blame] | 692 | |
| 693 | loop_forever(); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 694 | } |
| 695 | |
Eric Andersen | 8a8fbb8 | 1999-10-26 00:18:56 +0000 | [diff] [blame] | 696 | static void reboot_signal(int sig) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 697 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 698 | shutdown_system(); |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 699 | message(CONSOLE|LOG, "Please stand by while rebooting the system.\n"); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 700 | sync(); |
Erik Andersen | 3fe39dc | 2000-01-25 18:13:53 +0000 | [diff] [blame] | 701 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 702 | /* allow time for last message to reach serial console */ |
| 703 | sleep(2); |
Erik Andersen | 3fe39dc | 2000-01-25 18:13:53 +0000 | [diff] [blame] | 704 | |
Erik Andersen | 4f3f757 | 2000-04-28 00:18:56 +0000 | [diff] [blame] | 705 | init_reboot(RB_AUTOBOOT); |
Matt Kraai | 67a4640 | 2001-06-03 05:55:52 +0000 | [diff] [blame] | 706 | |
| 707 | loop_forever(); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 708 | } |
Eric Andersen | 8a8fbb8 | 1999-10-26 00:18:56 +0000 | [diff] [blame] | 709 | |
Eric Andersen | c97ec34 | 2001-04-03 18:01:51 +0000 | [diff] [blame] | 710 | static void ctrlaltdel_signal(int sig) |
| 711 | { |
| 712 | run_actions(CTRLALTDEL); |
| 713 | } |
| 714 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 715 | #endif /* ! DEBUG_INIT */ |
Erik Andersen | de55287 | 2000-01-23 01:34:05 +0000 | [diff] [blame] | 716 | |
Eric Andersen | 3e6ff90 | 2001-03-09 21:24:12 +0000 | [diff] [blame] | 717 | static void new_initAction(initActionEnum action, char *process, char *cons) |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 718 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 719 | initAction *newAction; |
Eric Andersen | 1644db9 | 2001-09-05 20:18:15 +0000 | [diff] [blame] | 720 | initAction *a; |
Erik Andersen | 9e73725 | 2000-01-06 01:16:13 +0000 | [diff] [blame] | 721 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 722 | if (*cons == '\0') |
| 723 | cons = console; |
Erik Andersen | 9e73725 | 2000-01-06 01:16:13 +0000 | [diff] [blame] | 724 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 725 | /* If BusyBox detects that a serial console is in use, |
| 726 | * then entries not refering to the console or null devices will _not_ be run. |
| 727 | * The exception to this rule is the null device. |
| 728 | */ |
| 729 | if (secondConsole == NULL && strcmp(cons, console) |
| 730 | && strcmp(cons, "/dev/null")) |
| 731 | return; |
Eric Andersen | 1644db9 | 2001-09-05 20:18:15 +0000 | [diff] [blame] | 732 | if (strcmp(cons, "/dev/null") == 0 && action == ASKFIRST) |
| 733 | return; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 734 | |
| 735 | newAction = calloc((size_t) (1), sizeof(initAction)); |
| 736 | if (!newAction) { |
| 737 | message(LOG | CONSOLE, "Memory allocation failure\n"); |
Matt Kraai | 67a4640 | 2001-06-03 05:55:52 +0000 | [diff] [blame] | 738 | loop_forever(); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 739 | } |
Eric Andersen | 1644db9 | 2001-09-05 20:18:15 +0000 | [diff] [blame] | 740 | for (a = initActionList; a && a->nextPtr; a = a->nextPtr) ; |
| 741 | if (a) { |
| 742 | a->nextPtr = newAction; |
| 743 | } else { |
| 744 | initActionList = newAction; |
| 745 | } |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 746 | safe_strncpy(newAction->process, process, 255); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 747 | newAction->action = action; |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 748 | safe_strncpy(newAction->console, cons, 255); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 749 | newAction->pid = 0; |
Erik Andersen | 3163821 | 2000-01-15 22:28:50 +0000 | [diff] [blame] | 750 | // message(LOG|CONSOLE, "process='%s' action='%d' console='%s'\n", |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 751 | // newAction->process, newAction->action, newAction->console); |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 752 | } |
| 753 | |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 754 | static void delete_initAction(initAction * action) |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 755 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 756 | initAction *a, *b = NULL; |
| 757 | |
| 758 | for (a = initActionList; a; b = a, a = a->nextPtr) { |
| 759 | if (a == action) { |
| 760 | if (b == NULL) { |
| 761 | initActionList = a->nextPtr; |
| 762 | } else { |
| 763 | b->nextPtr = a->nextPtr; |
| 764 | } |
| 765 | free(a); |
| 766 | break; |
| 767 | } |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 768 | } |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 769 | } |
| 770 | |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 771 | /* NOTE that if CONFIG_FEATURE_USE_INITTAB is NOT defined, |
Erik Andersen | 9e73725 | 2000-01-06 01:16:13 +0000 | [diff] [blame] | 772 | * then parse_inittab() simply adds in some default |
Eric Andersen | 77d9268 | 2001-05-23 20:32:09 +0000 | [diff] [blame] | 773 | * actions(i.e., runs INIT_SCRIPT and then starts a pair |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 774 | * of "askfirst" shells). If CONFIG_FEATURE_USE_INITTAB |
Erik Andersen | 812d466 | 2000-01-07 18:30:40 +0000 | [diff] [blame] | 775 | * _is_ defined, but /etc/inittab is missing, this |
| 776 | * results in the same set of default behaviors. |
Erik Andersen | 9e73725 | 2000-01-06 01:16:13 +0000 | [diff] [blame] | 777 | * */ |
Eric Andersen | 3e6ff90 | 2001-03-09 21:24:12 +0000 | [diff] [blame] | 778 | static void parse_inittab(void) |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 779 | { |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 780 | #ifdef CONFIG_FEATURE_USE_INITTAB |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 781 | FILE *file; |
| 782 | char buf[256], lineAsRead[256], tmpConsole[256]; |
Eric Andersen | b596636 | 2000-05-31 20:04:38 +0000 | [diff] [blame] | 783 | char *id, *runlev, *action, *process, *eol; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 784 | const struct initActionType *a = actions; |
| 785 | int foundIt; |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 786 | |
| 787 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 788 | file = fopen(INITTAB, "r"); |
| 789 | if (file == NULL) { |
| 790 | /* No inittab file -- set up some default behavior */ |
Erik Andersen | 9e73725 | 2000-01-06 01:16:13 +0000 | [diff] [blame] | 791 | #endif |
Eric Andersen | c97ec34 | 2001-04-03 18:01:51 +0000 | [diff] [blame] | 792 | /* Reboot on Ctrl-Alt-Del */ |
| 793 | new_initAction(CTRLALTDEL, "/sbin/reboot", console); |
Eric Andersen | 1644db9 | 2001-09-05 20:18:15 +0000 | [diff] [blame] | 794 | /* Umount all filesystems on halt/reboot */ |
| 795 | new_initAction(SHUTDOWN, "/bin/umount -a -r", console); |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 796 | #if !defined(__UCLIBC__) || defined(__UCLIBC_HAS_MMU__) |
Eric Andersen | 1644db9 | 2001-09-05 20:18:15 +0000 | [diff] [blame] | 797 | /* Swapoff on halt/reboot */ |
| 798 | new_initAction(SHUTDOWN, "/sbin/swapoff -a", console); |
Eric Andersen | 1644db9 | 2001-09-05 20:18:15 +0000 | [diff] [blame] | 799 | #endif |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 800 | /* Askfirst shell on tty1 */ |
Matt Kraai | 7bd773c | 2001-06-12 20:55:02 +0000 | [diff] [blame] | 801 | new_initAction(ASKFIRST, LOGIN_SHELL, console); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 802 | /* Askfirst shell on tty2 */ |
| 803 | if (secondConsole != NULL) |
Matt Kraai | 7bd773c | 2001-06-12 20:55:02 +0000 | [diff] [blame] | 804 | new_initAction(ASKFIRST, LOGIN_SHELL, secondConsole); |
Eric Andersen | 7e3bf6e | 2000-09-14 22:01:31 +0000 | [diff] [blame] | 805 | /* Askfirst shell on tty3 */ |
| 806 | if (thirdConsole != NULL) |
Matt Kraai | 7bd773c | 2001-06-12 20:55:02 +0000 | [diff] [blame] | 807 | new_initAction(ASKFIRST, LOGIN_SHELL, thirdConsole); |
Eric Andersen | 7e3bf6e | 2000-09-14 22:01:31 +0000 | [diff] [blame] | 808 | /* Askfirst shell on tty4 */ |
| 809 | if (fourthConsole != NULL) |
Matt Kraai | 7bd773c | 2001-06-12 20:55:02 +0000 | [diff] [blame] | 810 | new_initAction(ASKFIRST, LOGIN_SHELL, fourthConsole); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 811 | /* sysinit */ |
| 812 | new_initAction(SYSINIT, INIT_SCRIPT, console); |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 813 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 814 | return; |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 815 | #ifdef CONFIG_FEATURE_USE_INITTAB |
Erik Andersen | 9e73725 | 2000-01-06 01:16:13 +0000 | [diff] [blame] | 816 | } |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 817 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 818 | while (fgets(buf, 255, file) != NULL) { |
| 819 | foundIt = FALSE; |
Eric Andersen | b596636 | 2000-05-31 20:04:38 +0000 | [diff] [blame] | 820 | /* Skip leading spaces */ |
| 821 | for (id = buf; *id == ' ' || *id == '\t'; id++); |
| 822 | |
| 823 | /* Skip the line if it's a comment */ |
| 824 | if (*id == '#' || *id == '\n') |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 825 | continue; |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 826 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 827 | /* Trim the trailing \n */ |
Eric Andersen | b596636 | 2000-05-31 20:04:38 +0000 | [diff] [blame] | 828 | eol = strrchr(id, '\n'); |
| 829 | if (eol != NULL) |
| 830 | *eol = '\0'; |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 831 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 832 | /* Keep a copy around for posterity's sake (and error msgs) */ |
| 833 | strcpy(lineAsRead, buf); |
| 834 | |
Eric Andersen | b596636 | 2000-05-31 20:04:38 +0000 | [diff] [blame] | 835 | /* Separate the ID field from the runlevels */ |
| 836 | runlev = strchr(id, ':'); |
| 837 | if (runlev == NULL || *(runlev + 1) == '\0') { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 838 | message(LOG | CONSOLE, "Bad inittab entry: %s\n", lineAsRead); |
| 839 | continue; |
| 840 | } else { |
Eric Andersen | b596636 | 2000-05-31 20:04:38 +0000 | [diff] [blame] | 841 | *runlev = '\0'; |
| 842 | ++runlev; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 843 | } |
| 844 | |
Eric Andersen | b596636 | 2000-05-31 20:04:38 +0000 | [diff] [blame] | 845 | /* Separate the runlevels from the action */ |
| 846 | action = strchr(runlev, ':'); |
| 847 | if (action == NULL || *(action + 1) == '\0') { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 848 | message(LOG | CONSOLE, "Bad inittab entry: %s\n", lineAsRead); |
| 849 | continue; |
| 850 | } else { |
Eric Andersen | b596636 | 2000-05-31 20:04:38 +0000 | [diff] [blame] | 851 | *action = '\0'; |
| 852 | ++action; |
| 853 | } |
| 854 | |
| 855 | /* Separate the action from the process */ |
| 856 | process = strchr(action, ':'); |
| 857 | if (process == NULL || *(process + 1) == '\0') { |
| 858 | message(LOG | CONSOLE, "Bad inittab entry: %s\n", lineAsRead); |
| 859 | continue; |
| 860 | } else { |
| 861 | *process = '\0'; |
| 862 | ++process; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 863 | } |
| 864 | |
| 865 | /* Ok, now process it */ |
| 866 | a = actions; |
| 867 | while (a->name != 0) { |
Eric Andersen | b596636 | 2000-05-31 20:04:38 +0000 | [diff] [blame] | 868 | if (strcmp(a->name, action) == 0) { |
| 869 | if (*id != '\0') { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 870 | strcpy(tmpConsole, "/dev/"); |
Eric Andersen | b596636 | 2000-05-31 20:04:38 +0000 | [diff] [blame] | 871 | strncat(tmpConsole, id, 200); |
Eric Andersen | b596636 | 2000-05-31 20:04:38 +0000 | [diff] [blame] | 872 | id = tmpConsole; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 873 | } |
Eric Andersen | b596636 | 2000-05-31 20:04:38 +0000 | [diff] [blame] | 874 | new_initAction(a->action, process, id); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 875 | foundIt = TRUE; |
| 876 | } |
| 877 | a++; |
| 878 | } |
| 879 | if (foundIt == TRUE) |
| 880 | continue; |
| 881 | else { |
| 882 | /* Choke on an unknown action */ |
| 883 | message(LOG | CONSOLE, "Bad inittab entry: %s\n", lineAsRead); |
| 884 | } |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 885 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 886 | return; |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 887 | #endif /* CONFIG_FEATURE_USE_INITTAB */ |
Erik Andersen | 7dc1607 | 2000-01-04 01:10:25 +0000 | [diff] [blame] | 888 | } |
| 889 | |
Erik Andersen | e132f4b | 2000-02-09 04:16:43 +0000 | [diff] [blame] | 890 | |
| 891 | |
Eric Andersen | 8a8fbb8 | 1999-10-26 00:18:56 +0000 | [diff] [blame] | 892 | extern int init_main(int argc, char **argv) |
Eric Andersen | 0460ff2 | 1999-10-25 23:32:44 +0000 | [diff] [blame] | 893 | { |
Eric Andersen | 0d4e51d | 2001-03-15 19:18:21 +0000 | [diff] [blame] | 894 | initAction *a, *tmp; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 895 | pid_t wpid; |
| 896 | int status; |
Eric Andersen | 0460ff2 | 1999-10-25 23:32:44 +0000 | [diff] [blame] | 897 | |
Eric Andersen | d73dc5b | 1999-11-10 23:13:02 +0000 | [diff] [blame] | 898 | #ifndef DEBUG_INIT |
Erik Andersen | a51ecdd | 2000-02-24 18:09:58 +0000 | [diff] [blame] | 899 | /* Expect to be invoked as init with PID=1 or be invoked as linuxrc */ |
| 900 | if (getpid() != 1 |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 901 | #ifdef CONFIG_FEATURE_INITRD |
Matt Kraai | e58771e | 2000-07-12 15:38:49 +0000 | [diff] [blame] | 902 | && strstr(applet_name, "linuxrc") == NULL |
Erik Andersen | a51ecdd | 2000-02-24 18:09:58 +0000 | [diff] [blame] | 903 | #endif |
| 904 | ) |
| 905 | { |
Eric Andersen | 67991cf | 2001-02-14 21:23:06 +0000 | [diff] [blame] | 906 | show_usage(); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 907 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 908 | /* Set up sig handlers -- be sure to |
| 909 | * clear all of these in run() */ |
| 910 | signal(SIGUSR1, halt_signal); |
Eric Andersen | 4c95a28 | 2000-07-07 19:30:28 +0000 | [diff] [blame] | 911 | signal(SIGUSR2, halt_signal); |
Eric Andersen | c97ec34 | 2001-04-03 18:01:51 +0000 | [diff] [blame] | 912 | signal(SIGINT, ctrlaltdel_signal); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 913 | signal(SIGTERM, reboot_signal); |
Eric Andersen | 0460ff2 | 1999-10-25 23:32:44 +0000 | [diff] [blame] | 914 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 915 | /* Turn off rebooting via CTL-ALT-DEL -- we get a |
| 916 | * SIGINT on CAD so we can shut things down gracefully... */ |
Erik Andersen | 4f3f757 | 2000-04-28 00:18:56 +0000 | [diff] [blame] | 917 | init_reboot(RB_DISABLE_CAD); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 918 | #endif |
Erik Andersen | 05df239 | 2000-01-13 04:43:48 +0000 | [diff] [blame] | 919 | |
Erik Andersen | 298854f | 2000-03-23 01:09:18 +0000 | [diff] [blame] | 920 | /* Figure out what kernel this is running */ |
| 921 | kernelVersion = get_kernel_revision(); |
| 922 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 923 | /* Close whatever files are open, and reset the console. */ |
| 924 | close(0); |
| 925 | close(1); |
| 926 | close(2); |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 927 | |
| 928 | /* Figure out where the default console should be */ |
| 929 | console_init(); |
| 930 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 931 | set_term(0); |
Erik Andersen | 983b51b | 2000-04-04 18:14:25 +0000 | [diff] [blame] | 932 | chdir("/"); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 933 | setsid(); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 934 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 935 | /* Make sure PATH is set to something sane */ |
Eric Andersen | 452fd33 | 2001-03-04 06:47:33 +0000 | [diff] [blame] | 936 | putenv("PATH="_PATH_STDPATH); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 937 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 938 | /* Hello world */ |
Eric Andersen | 7f1acfd | 1999-10-29 23:09:13 +0000 | [diff] [blame] | 939 | #ifndef DEBUG_INIT |
Erik Andersen | ea6b67d | 2000-03-07 07:47:10 +0000 | [diff] [blame] | 940 | message( |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 941 | #if ! defined CONFIG_FEATURE_EXTRA_QUIET |
Erik Andersen | ea6b67d | 2000-03-07 07:47:10 +0000 | [diff] [blame] | 942 | CONSOLE| |
| 943 | #endif |
| 944 | LOG, |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 945 | "init started: %s\n", full_version); |
Eric Andersen | 7f1acfd | 1999-10-29 23:09:13 +0000 | [diff] [blame] | 946 | #else |
Erik Andersen | ea6b67d | 2000-03-07 07:47:10 +0000 | [diff] [blame] | 947 | message( |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 948 | #if ! defined CONFIG_FEATURE_EXTRA_QUIET |
Erik Andersen | ea6b67d | 2000-03-07 07:47:10 +0000 | [diff] [blame] | 949 | CONSOLE| |
| 950 | #endif |
| 951 | LOG, |
Eric Andersen | 72f9a42 | 2001-10-28 05:12:20 +0000 | [diff] [blame] | 952 | "init(%d) started: %s\n", getpid(), full_version); |
Eric Andersen | 7f1acfd | 1999-10-29 23:09:13 +0000 | [diff] [blame] | 953 | #endif |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 954 | |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 955 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 956 | /* Make sure there is enough memory to do something useful. */ |
| 957 | check_memory(); |
Erik Andersen | 9e73725 | 2000-01-06 01:16:13 +0000 | [diff] [blame] | 958 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 959 | /* Check if we are supposed to be in single user mode */ |
| 960 | if (argc > 1 && (!strcmp(argv[1], "single") || |
| 961 | !strcmp(argv[1], "-s") || !strcmp(argv[1], "1"))) { |
Eric Andersen | 7e3bf6e | 2000-09-14 22:01:31 +0000 | [diff] [blame] | 962 | /* Ask first then start a shell on tty2-4 */ |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 963 | if (secondConsole != NULL) |
Matt Kraai | 7bd773c | 2001-06-12 20:55:02 +0000 | [diff] [blame] | 964 | new_initAction(ASKFIRST, LOGIN_SHELL, secondConsole); |
Eric Andersen | 7e3bf6e | 2000-09-14 22:01:31 +0000 | [diff] [blame] | 965 | if (thirdConsole != NULL) |
Matt Kraai | 7bd773c | 2001-06-12 20:55:02 +0000 | [diff] [blame] | 966 | new_initAction(ASKFIRST, LOGIN_SHELL, thirdConsole); |
Eric Andersen | 7e3bf6e | 2000-09-14 22:01:31 +0000 | [diff] [blame] | 967 | if (fourthConsole != NULL) |
Matt Kraai | 7bd773c | 2001-06-12 20:55:02 +0000 | [diff] [blame] | 968 | new_initAction(ASKFIRST, LOGIN_SHELL, fourthConsole); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 969 | /* Start a shell on tty1 */ |
Matt Kraai | 7bd773c | 2001-06-12 20:55:02 +0000 | [diff] [blame] | 970 | new_initAction(RESPAWN, LOGIN_SHELL, console); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 971 | } else { |
| 972 | /* Not in single user mode -- see what inittab says */ |
Eric Andersen | 8a8fbb8 | 1999-10-26 00:18:56 +0000 | [diff] [blame] | 973 | |
Eric Andersen | bdfd0d7 | 2001-10-24 05:00:29 +0000 | [diff] [blame] | 974 | /* NOTE that if CONFIG_FEATURE_USE_INITTAB is NOT defined, |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 975 | * then parse_inittab() simply adds in some default |
Eric Andersen | 77d9268 | 2001-05-23 20:32:09 +0000 | [diff] [blame] | 976 | * actions(i.e., runs INIT_SCRIPT and then starts a pair |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 977 | * of "askfirst" shells */ |
| 978 | parse_inittab(); |
Eric Andersen | d00c262 | 1999-12-07 08:37:31 +0000 | [diff] [blame] | 979 | } |
Erik Andersen | 983b51b | 2000-04-04 18:14:25 +0000 | [diff] [blame] | 980 | |
Eric Andersen | 7ef1a5b | 2001-03-20 17:39:08 +0000 | [diff] [blame] | 981 | /* Make the command line just say "init" -- thats all, nothing else */ |
| 982 | fixup_argv(argc, argv, "init"); |
Eric Andersen | 219d6f5 | 1999-11-02 19:43:01 +0000 | [diff] [blame] | 983 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 984 | /* Now run everything that needs to be run */ |
| 985 | |
| 986 | /* First run the sysinit command */ |
Eric Andersen | 1644db9 | 2001-09-05 20:18:15 +0000 | [diff] [blame] | 987 | run_actions(SYSINIT); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 988 | /* Next run anything that wants to block */ |
Eric Andersen | 1644db9 | 2001-09-05 20:18:15 +0000 | [diff] [blame] | 989 | run_actions(WAIT); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 990 | /* Next run anything to be run only once */ |
Eric Andersen | a4edd0e | 2001-03-15 21:04:18 +0000 | [diff] [blame] | 991 | for (a = initActionList; a; a = tmp) { |
| 992 | tmp = a->nextPtr; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 993 | if (a->action == ONCE) { |
| 994 | run(a->process, a->console, FALSE); |
| 995 | /* Now remove the "once" entry from the list */ |
| 996 | delete_initAction(a); |
| 997 | } |
| 998 | } |
| 999 | /* If there is nothing else to do, stop */ |
| 1000 | if (initActionList == NULL) { |
| 1001 | message(LOG | CONSOLE, |
| 1002 | "No more tasks for init -- sleeping forever.\n"); |
Matt Kraai | 67a4640 | 2001-06-03 05:55:52 +0000 | [diff] [blame] | 1003 | loop_forever(); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1004 | } |
| 1005 | |
| 1006 | /* Now run the looping stuff for the rest of forever */ |
| 1007 | while (1) { |
| 1008 | for (a = initActionList; a; a = a->nextPtr) { |
| 1009 | /* Only run stuff with pid==0. If they have |
| 1010 | * a pid, that means they are still running */ |
| 1011 | if (a->pid == 0) { |
| 1012 | switch (a->action) { |
| 1013 | case RESPAWN: |
| 1014 | /* run the respawn stuff */ |
| 1015 | a->pid = run(a->process, a->console, FALSE); |
| 1016 | break; |
| 1017 | case ASKFIRST: |
| 1018 | /* run the askfirst stuff */ |
| 1019 | a->pid = run(a->process, a->console, TRUE); |
| 1020 | break; |
| 1021 | /* silence the compiler's incessant whining */ |
| 1022 | default: |
| 1023 | break; |
| 1024 | } |
| 1025 | } |
| 1026 | } |
| 1027 | /* Wait for a child process to exit */ |
| 1028 | wpid = wait(&status); |
| 1029 | if (wpid > 0) { |
| 1030 | /* Find out who died and clean up their corpse */ |
| 1031 | for (a = initActionList; a; a = a->nextPtr) { |
| 1032 | if (a->pid == wpid) { |
| 1033 | a->pid = 0; |
| 1034 | message(LOG, |
| 1035 | "Process '%s' (pid %d) exited. Scheduling it for restart.\n", |
| 1036 | a->process, wpid); |
| 1037 | } |
| 1038 | } |
| 1039 | } |
| 1040 | sleep(1); |
| 1041 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 1042 | } |
Erik Andersen | 029011b | 2000-03-04 21:19:32 +0000 | [diff] [blame] | 1043 | |
| 1044 | /* |
| 1045 | Local Variables: |
| 1046 | c-file-style: "linux" |
| 1047 | c-basic-offset: 4 |
| 1048 | tab-width: 4 |
| 1049 | End: |
| 1050 | */ |