1 /* vi: set sw=4 ts=4: */
3 * Mini init implementation for busybox
6 * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>.
7 * Adjusted by so many folks, it's impossible to keep track.
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.
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.
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
25 /* Turn this on to disable all the dangerous
26 rebooting stuff when debugging.
40 #include <sys/fcntl.h>
41 #include <sys/ioctl.h>
42 #include <sys/mount.h>
43 #include <sys/types.h>
46 #define bb_need_full_version
47 #define BB_DECLARE_EXTERN
50 # include <sys/syslog.h>
54 /* From <linux/vt.h> */
56 unsigned short v_active; /* active vt */
57 unsigned short v_signal; /* signal to send */
58 unsigned short v_state; /* vt bitmask */
60 static const int VT_GETSTATE = 0x5603; /* get global vt state info */
62 /* From <linux/serial.h> */
63 struct serial_struct {
72 unsigned short close_delay;
73 char reserved_char[2];
75 unsigned short closing_wait; /* time to wait before closing */
76 unsigned short closing_wait2; /* no longer used... */
82 #ifndef RB_HALT_SYSTEM
83 static const int RB_HALT_SYSTEM = 0xcdef0123;
84 static const int RB_ENABLE_CAD = 0x89abcdef;
85 static const int RB_DISABLE_CAD = 0;
86 #define RB_POWER_OFF 0x4321fedc
87 static const int RB_AUTOBOOT = 0x01234567;
88 #if defined(__GLIBC__) || defined (__UCLIBC__)
89 #include <sys/reboot.h>
90 #define init_reboot(magic) reboot(magic)
92 #define init_reboot(magic) reboot(0xfee1dead, 672274793, magic)
97 #define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin"
100 #if defined BB_FEATURE_INIT_COREDUMPS
102 * When a file named CORE_ENABLE_FLAG_FILE exists, setrlimit is called
103 * before processes are spawned to set core file size as unlimited.
104 * This is for debugging only. Don't use this is production, unless
105 * you want core dumps lying about....
107 #define CORE_ENABLE_FLAG_FILE "/.init_enable_core"
108 #include <sys/resource.h>
109 #include <sys/time.h>
112 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
114 #if defined(__GLIBC__)
115 #include <sys/kdaemon.h>
117 #include <sys/syscall.h>
118 #include <linux/unistd.h>
119 static _syscall2(int, bdflush, int, func, int, data);
120 #endif /* __GLIBC__ */
123 #define VT_PRIMARY "/dev/tty1" /* Primary virtual console */
124 #define VT_SECONDARY "/dev/tty2" /* Virtual console */
125 #define VT_THIRD "/dev/tty3" /* Virtual console */
126 #define VT_FOURTH "/dev/tty4" /* Virtual console */
127 #define VT_LOG "/dev/tty5" /* Virtual console */
128 #define SERIAL_CON0 "/dev/ttyS0" /* Primary serial console */
129 #define SERIAL_CON1 "/dev/ttyS1" /* Serial console */
130 #define SHELL "-/bin/sh" /* Default shell */
131 #define INITTAB "/etc/inittab" /* inittab file location */
133 #define INIT_SCRIPT "/etc/init.d/rcS" /* Default sysinit script. */
136 static const int MAXENV = 16; /* Number of env. vars */
137 static const int LOG = 0x1;
138 static const int CONSOLE = 0x2;
140 /* Allowed init action types */
150 /* A mapping between "inittab" action name strings and action type codes. */
151 typedef struct initActionType {
153 initActionEnum action;
156 static const struct initActionType actions[] = {
157 {"sysinit", SYSINIT},
158 {"respawn", RESPAWN},
159 {"askfirst", ASKFIRST},
162 {"ctrlaltdel", CTRLALTDEL},
166 /* Set up a linked list of initActions, to be read from inittab */
167 typedef struct initActionTag initAction;
168 struct initActionTag {
173 initActionEnum action;
175 initAction *initActionList = NULL;
178 static char *secondConsole = VT_SECONDARY;
179 static char *thirdConsole = VT_THIRD;
180 static char *fourthConsole = VT_FOURTH;
181 static char *log = VT_LOG;
182 static int kernelVersion = 0;
183 static char termType[32] = "TERM=linux";
184 static char console[32] = _PATH_CONSOLE;
186 static void delete_initAction(initAction * action);
189 /* Print a message to the specified device.
190 * Device may be bitwise-or'd from LOG | CONSOLE */
191 static void message(int device, char *fmt, ...)
192 __attribute__ ((format (printf, 2, 3)));
193 static void message(int device, char *fmt, ...)
200 /* Log the message to syslogd */
204 va_start(arguments, fmt);
205 vsnprintf(msg, sizeof(msg), fmt, arguments);
207 openlog(applet_name, 0, LOG_USER);
208 syslog(LOG_USER|LOG_INFO, msg);
212 static int log_fd = -1;
214 /* Take full control of the log tty, and never close it.
215 * It's mine, all mine! Muhahahaha! */
218 /* don't even try to log, because there is no such console */
220 /* log to main console instead */
222 } else if ((log_fd = device_open(log, O_RDWR|O_NDELAY)) < 0) {
224 fprintf(stderr, "Bummer, can't write to log on %s!\r\n", log);
229 if ((device & LOG) && (log_fd >= 0)) {
230 va_start(arguments, fmt);
231 vdprintf(log_fd, fmt, arguments);
236 if (device & CONSOLE) {
237 /* Always send console messages to /dev/console so people will see them. */
240 device_open(_PATH_CONSOLE,
241 O_WRONLY | O_NOCTTY | O_NDELAY)) >= 0) {
242 va_start(arguments, fmt);
243 vdprintf(fd, fmt, arguments);
247 fprintf(stderr, "Bummer, can't print: ");
248 va_start(arguments, fmt);
249 vfprintf(stderr, fmt, arguments);
255 /* Set terminal settings to reasonable defaults */
256 void set_term(int fd)
262 /* set control chars */
263 tty.c_cc[VINTR] = 3; /* C-c */
264 tty.c_cc[VQUIT] = 28; /* C-\ */
265 tty.c_cc[VERASE] = 127; /* C-? */
266 tty.c_cc[VKILL] = 21; /* C-u */
267 tty.c_cc[VEOF] = 4; /* C-d */
268 tty.c_cc[VSTART] = 17; /* C-q */
269 tty.c_cc[VSTOP] = 19; /* C-s */
270 tty.c_cc[VSUSP] = 26; /* C-z */
272 /* use line dicipline 0 */
275 /* Make it be sane */
276 tty.c_cflag &= CBAUD|CBAUDEX|CSIZE|CSTOPB|PARENB|PARODD;
277 tty.c_cflag |= HUPCL|CLOCAL;
280 tty.c_iflag = ICRNL | IXON | IXOFF;
283 tty.c_oflag = OPOST | ONLCR;
287 ISIG | ICANON | ECHO | ECHOE | ECHOK | ECHOCTL | ECHOKE | IEXTEN;
289 tcsetattr(fd, TCSANOW, &tty);
292 /* How much memory does this machine have?
293 Units are kBytes to avoid overflow on 4GB machines */
294 static int check_free_memory()
297 unsigned int result, u, s=10;
299 if (sysinfo(&info) != 0) {
300 perror_msg("Error checking free memory");
304 /* Kernels 2.0.x and 2.2.x return info.mem_unit==0 with values in bytes.
305 * Kernels 2.4.0 return info.mem_unit in bytes. */
308 while ( (u&1) == 0 && s > 0 ) { u>>=1; s--; }
309 result = (info.totalram>>s) + (info.totalswap>>s);
311 if (result < 0) result = INT_MAX;
315 static void console_init()
318 int tried_devcons = 0;
319 int tried_vtprimary = 0;
321 struct serial_struct sr;
324 if ((s = getenv("TERM")) != NULL) {
325 snprintf(termType, sizeof(termType) - 1, "TERM=%s", s);
328 if ((s = getenv("CONSOLE")) != NULL) {
329 snprintf(console, sizeof(console) - 1, "%s", s);
332 /* sparc kernel supports console=tty[ab] parameter which is also
333 * passed to init, so catch it here */
334 else if ((s = getenv("console")) != NULL) {
335 /* remap tty[ab] to /dev/ttyS[01] */
336 if (strcmp(s, "ttya") == 0)
337 snprintf(console, sizeof(console) - 1, "%s", SERIAL_CON0);
338 else if (strcmp(s, "ttyb") == 0)
339 snprintf(console, sizeof(console) - 1, "%s", SERIAL_CON1);
343 /* 2.2 kernels: identify the real console backend and try to use it */
344 if (ioctl(0, TIOCGSERIAL, &sr) == 0) {
345 /* this is a serial console */
346 snprintf(console, sizeof(console) - 1, "/dev/ttyS%d", sr.line);
347 } else if (ioctl(0, VT_GETSTATE, &vt) == 0) {
348 /* this is linux virtual tty */
349 snprintf(console, sizeof(console) - 1, "/dev/tty%d",
352 snprintf(console, sizeof(console) - 1, "%s", _PATH_CONSOLE);
357 while ((fd = open(console, O_RDONLY | O_NONBLOCK)) < 0) {
358 /* Can't open selected console -- try /dev/console */
359 if (!tried_devcons) {
361 snprintf(console, sizeof(console) - 1, "%s", _PATH_CONSOLE);
364 /* Can't open selected console -- try vt1 */
365 if (!tried_vtprimary) {
367 snprintf(console, sizeof(console) - 1, "%s", VT_PRIMARY);
373 /* Perhaps we should panic here? */
374 snprintf(console, sizeof(console) - 1, "/dev/null");
376 /* check for serial console and disable logging to tty5 & running a
378 if (ioctl(0, TIOCGSERIAL, &sr) == 0) {
380 secondConsole = NULL;
382 fourthConsole = NULL;
383 /* Force the TERM setting to vt102 for serial console --
384 * iff TERM is set to linux (the default) */
385 if (strcmp( termType, "TERM=linux" ) == 0)
386 snprintf(termType, sizeof(termType) - 1, "TERM=vt102");
387 message(LOG | CONSOLE,
388 "serial console detected. Disabling virtual terminals.\r\n");
392 message(LOG, "console=%s\n", console);
395 static pid_t run(char *command, char *terminal, int get_enter)
401 char *cmd[255], *cmdpath;
403 static const char press_enter[] =
405 #ifdef CUSTOMIZED_BANNER
406 #include CUSTOMIZED_BANNER
409 "\nPlease press Enter to activate this console. ";
410 char *environment[MAXENV+1] = {
412 "PATH=/usr/bin:/bin:/usr/sbin:/sbin",
418 while (environment[i]) i++;
419 while ((environ[j]) && (i < MAXENV)) {
420 if (strncmp(environ[j], "TERM=", 5))
421 environment[i++] = environ[j];
425 if ((pid = fork()) == 0) {
427 ioctl(0, TIOCNOTTY, 0);
433 /* Reset signal handlers set for parent process */
434 signal(SIGUSR1, SIG_DFL);
435 signal(SIGUSR2, SIG_DFL);
436 signal(SIGINT, SIG_DFL);
437 signal(SIGTERM, SIG_DFL);
438 signal(SIGHUP, SIG_DFL);
440 if ((fd = device_open(terminal, O_RDWR)) < 0) {
441 message(LOG | CONSOLE, "Bummer, can't open %s\r\n", terminal);
447 ioctl(0, TIOCSCTTY, 1);
448 tcsetpgrp(0, getpgrp());
451 if (get_enter == TRUE) {
453 * Save memory by not exec-ing anything large (like a shell)
454 * before the user wants it. This is critical if swap is not
455 * enabled and the system has low memory. Generally this will
456 * be run on the second virtual console, and the first will
457 * be allowed to start a shell or whatever an init script
461 message(LOG, "Waiting for enter to start '%s' (pid %d, console %s)\r\n",
462 command, getpid(), terminal);
464 write(fileno(stdout), press_enter, sizeof(press_enter) - 1);
469 /* Log the process name and args */
470 message(LOG, "Starting pid %d, console %s: '%s'\r\n",
471 getpid(), terminal, command);
474 /* See if any special /bin/sh requiring characters are present */
475 if (strpbrk(command, "~`!$^&*()=|\\{}[];\"'<>?") != NULL) {
478 strcpy(buf, "exec ");
479 strncat(buf, command, sizeof(buf) - strlen(buf) - 1);
483 /* Convert command (char*) into cmd (char**, one word per string) */
484 for (tmpCmd = command, i = 0;
485 (tmpCmd = strsep(&command, " \t")) != NULL;) {
486 if (*tmpCmd != '\0') {
498 Interactive shells want to see a dash in argv[0]. This
499 typically is handled by login, argv will be setup this
500 way if a dash appears at the front of the command path
504 if (*cmdpath == '-') {
507 /* skip over the dash */
510 /* find the last component in the command pathname */
511 s = get_last_path_component(cmdpath);
513 /* make a new argv[0] */
514 if ((cmd[0] = malloc(strlen(s)+2)) == NULL) {
515 message(LOG | CONSOLE, "malloc failed");
523 #if defined BB_FEATURE_INIT_COREDUMPS
526 if (stat (CORE_ENABLE_FLAG_FILE, &sb) == 0) {
528 limit.rlim_cur = RLIM_INFINITY;
529 limit.rlim_max = RLIM_INFINITY;
530 setrlimit(RLIMIT_CORE, &limit);
535 /* Now run it. The new program will take over this PID,
536 * so nothing further in init.c should be run. */
537 execve(cmdpath, cmd, environment);
539 /* We're still here? Some error happened. */
540 message(LOG | CONSOLE, "Bummer, could not run '%s': %s\n", cmdpath,
547 static int waitfor(char *command, char *terminal, int get_enter)
550 int pid = run(command, terminal, get_enter);
553 wpid = wait(&status);
554 if (wpid > 0 && wpid != pid) {
563 /* Make sure there is enough memory to do something useful. *
564 * Calls "swapon -a" if needed so be sure /etc/fstab is present... */
565 static void check_memory()
569 if (check_free_memory() > 1000)
572 if (stat("/etc/fstab", &statBuf) == 0) {
573 /* swapon -a requires /proc typically */
574 waitfor("mount proc /proc -t proc", console, FALSE);
575 /* Try to turn on swap */
576 waitfor("swapon -a", console, FALSE);
577 if (check_free_memory() < 1000)
585 "Sorry, your computer does not have enough memory.\r\n");
590 /* Run all commands to be run right before halt/reboot */
591 static void run_lastAction(void)
594 for (a = initActionList; a; a = a->nextPtr) {
595 if (a->action == CTRLALTDEL) {
596 waitfor(a->process, a->console, FALSE);
597 delete_initAction(a);
604 static void shutdown_system(void)
607 /* first disable our SIGHUP signal */
608 signal(SIGHUP, SIG_DFL);
610 /* Allow Ctrl-Alt-Del to reboot system. */
611 init_reboot(RB_ENABLE_CAD);
613 message(CONSOLE|LOG, "\r\nThe system is going down NOW !!\r\n");
616 /* Send signals to every process _except_ pid 1 */
617 message(CONSOLE|LOG, "Sending SIGTERM to all processes.\r\n");
622 message(CONSOLE|LOG, "Sending SIGKILL to all processes.\r\n");
626 /* run everything to be run at "ctrlaltdel" */
630 if (kernelVersion > 0 && kernelVersion <= KERNEL_VERSION(2,2,11)) {
631 /* bdflush, kupdate not needed for kernels >2.2.11 */
637 static void halt_signal(int sig)
641 "The system is halted. Press %s or turn off power\r\n",
642 (secondConsole == NULL) /* serial console */
643 ? "Reset" : "CTRL-ALT-DEL");
646 /* allow time for last message to reach serial console */
649 if (sig == SIGUSR2 && kernelVersion >= KERNEL_VERSION(2,2,0))
650 init_reboot(RB_POWER_OFF);
652 init_reboot(RB_HALT_SYSTEM);
656 static void reboot_signal(int sig)
659 message(CONSOLE|LOG, "Please stand by while rebooting the system.\r\n");
662 /* allow time for last message to reach serial console */
665 init_reboot(RB_AUTOBOOT);
669 #endif /* ! DEBUG_INIT */
671 void new_initAction(initActionEnum action, char *process, char *cons)
673 initAction *newAction;
678 /* If BusyBox detects that a serial console is in use,
679 * then entries not refering to the console or null devices will _not_ be run.
680 * The exception to this rule is the null device.
682 if (secondConsole == NULL && strcmp(cons, console)
683 && strcmp(cons, "/dev/null"))
686 newAction = calloc((size_t) (1), sizeof(initAction));
688 message(LOG | CONSOLE, "Memory allocation failure\n");
692 newAction->nextPtr = initActionList;
693 initActionList = newAction;
694 strncpy(newAction->process, process, 255);
695 newAction->action = action;
696 strncpy(newAction->console, cons, 255);
698 // message(LOG|CONSOLE, "process='%s' action='%d' console='%s'\n",
699 // newAction->process, newAction->action, newAction->console);
702 static void delete_initAction(initAction * action)
704 initAction *a, *b = NULL;
706 for (a = initActionList; a; b = a, a = a->nextPtr) {
709 initActionList = a->nextPtr;
711 b->nextPtr = a->nextPtr;
719 /* NOTE that if BB_FEATURE_USE_INITTAB is NOT defined,
720 * then parse_inittab() simply adds in some default
721 * actions(i.e runs INIT_SCRIPT and then starts a pair
722 * of "askfirst" shells). If BB_FEATURE_USE_INITTAB
723 * _is_ defined, but /etc/inittab is missing, this
724 * results in the same set of default behaviors.
726 void parse_inittab(void)
728 #ifdef BB_FEATURE_USE_INITTAB
730 char buf[256], lineAsRead[256], tmpConsole[256];
731 char *id, *runlev, *action, *process, *eol;
732 const struct initActionType *a = actions;
736 file = fopen(INITTAB, "r");
738 /* No inittab file -- set up some default behavior */
740 /* Swapoff on halt/reboot */
741 new_initAction(CTRLALTDEL, "/sbin/swapoff -a", console);
742 /* Umount all filesystems on halt/reboot */
743 new_initAction(CTRLALTDEL, "/bin/umount -a -r", console);
744 /* Askfirst shell on tty1 */
745 new_initAction(ASKFIRST, SHELL, console);
746 /* Askfirst shell on tty2 */
747 if (secondConsole != NULL)
748 new_initAction(ASKFIRST, SHELL, secondConsole);
749 /* Askfirst shell on tty3 */
750 if (thirdConsole != NULL)
751 new_initAction(ASKFIRST, SHELL, thirdConsole);
752 /* Askfirst shell on tty4 */
753 if (fourthConsole != NULL)
754 new_initAction(ASKFIRST, SHELL, fourthConsole);
756 new_initAction(SYSINIT, INIT_SCRIPT, console);
759 #ifdef BB_FEATURE_USE_INITTAB
762 while (fgets(buf, 255, file) != NULL) {
764 /* Skip leading spaces */
765 for (id = buf; *id == ' ' || *id == '\t'; id++);
767 /* Skip the line if it's a comment */
768 if (*id == '#' || *id == '\n')
771 /* Trim the trailing \n */
772 eol = strrchr(id, '\n');
776 /* Keep a copy around for posterity's sake (and error msgs) */
777 strcpy(lineAsRead, buf);
779 /* Separate the ID field from the runlevels */
780 runlev = strchr(id, ':');
781 if (runlev == NULL || *(runlev + 1) == '\0') {
782 message(LOG | CONSOLE, "Bad inittab entry: %s\n", lineAsRead);
789 /* Separate the runlevels from the action */
790 action = strchr(runlev, ':');
791 if (action == NULL || *(action + 1) == '\0') {
792 message(LOG | CONSOLE, "Bad inittab entry: %s\n", lineAsRead);
799 /* Separate the action from the process */
800 process = strchr(action, ':');
801 if (process == NULL || *(process + 1) == '\0') {
802 message(LOG | CONSOLE, "Bad inittab entry: %s\n", lineAsRead);
809 /* Ok, now process it */
811 while (a->name != 0) {
812 if (strcmp(a->name, action) == 0) {
816 strcpy(tmpConsole, "/dev/");
817 strncat(tmpConsole, id, 200);
818 if (stat(tmpConsole, &statBuf) != 0) {
819 message(LOG | CONSOLE,
820 "device '%s' does not exist. Did you read the directions?\n",
826 new_initAction(a->action, process, id);
834 /* Choke on an unknown action */
835 message(LOG | CONSOLE, "Bad inittab entry: %s\n", lineAsRead);
839 #endif /* BB_FEATURE_USE_INITTAB */
844 extern int init_main(int argc, char **argv)
851 /* Expect to be invoked as init with PID=1 or be invoked as linuxrc */
853 #ifdef BB_FEATURE_LINUXRC
854 && strstr(applet_name, "linuxrc") == NULL
860 /* Set up sig handlers -- be sure to
861 * clear all of these in run() */
862 signal(SIGUSR1, halt_signal);
863 signal(SIGUSR2, halt_signal);
864 signal(SIGINT, reboot_signal);
865 signal(SIGTERM, reboot_signal);
867 /* Turn off rebooting via CTL-ALT-DEL -- we get a
868 * SIGINT on CAD so we can shut things down gracefully... */
869 init_reboot(RB_DISABLE_CAD);
872 /* Figure out what kernel this is running */
873 kernelVersion = get_kernel_revision();
875 /* Figure out where the default console should be */
878 /* Close whatever files are open, and reset the console. */
886 /* Make sure PATH is set to something sane */
887 putenv(_PATH_STDPATH);
892 #if ! defined BB_FEATURE_EXTRA_QUIET
896 "init started: %s\r\n", full_version);
899 #if ! defined BB_FEATURE_EXTRA_QUIET
903 "init(%d) started: %s\r\n", getpid(), full_version);
907 /* Make sure there is enough memory to do something useful. */
910 /* Check if we are supposed to be in single user mode */
911 if (argc > 1 && (!strcmp(argv[1], "single") ||
912 !strcmp(argv[1], "-s") || !strcmp(argv[1], "1"))) {
913 /* Ask first then start a shell on tty2-4 */
914 if (secondConsole != NULL)
915 new_initAction(ASKFIRST, SHELL, secondConsole);
916 if (thirdConsole != NULL)
917 new_initAction(ASKFIRST, SHELL, thirdConsole);
918 if (fourthConsole != NULL)
919 new_initAction(ASKFIRST, SHELL, fourthConsole);
920 /* Start a shell on tty1 */
921 new_initAction(RESPAWN, SHELL, console);
923 /* Not in single user mode -- see what inittab says */
925 /* NOTE that if BB_FEATURE_USE_INITTAB is NOT defined,
926 * then parse_inittab() simply adds in some default
927 * actions(i.e runs INIT_SCRIPT and then starts a pair
928 * of "askfirst" shells */
932 /* Fix up argv[0] to be certain we claim to be init */
938 /* Now run everything that needs to be run */
940 /* First run the sysinit command */
941 for (a = initActionList; a; a = a->nextPtr) {
942 if (a->action == SYSINIT) {
943 waitfor(a->process, a->console, FALSE);
944 /* Now remove the "sysinit" entry from the list */
945 delete_initAction(a);
948 /* Next run anything that wants to block */
949 for (a = initActionList; a; a = a->nextPtr) {
950 if (a->action == WAIT) {
951 waitfor(a->process, a->console, FALSE);
952 /* Now remove the "wait" entry from the list */
953 delete_initAction(a);
956 /* Next run anything to be run only once */
957 for (a = initActionList; a; a = a->nextPtr) {
958 if (a->action == ONCE) {
959 run(a->process, a->console, FALSE);
960 /* Now remove the "once" entry from the list */
961 delete_initAction(a);
964 /* If there is nothing else to do, stop */
965 if (initActionList == NULL) {
966 message(LOG | CONSOLE,
967 "No more tasks for init -- sleeping forever.\n");
972 /* Now run the looping stuff for the rest of forever */
974 for (a = initActionList; a; a = a->nextPtr) {
975 /* Only run stuff with pid==0. If they have
976 * a pid, that means they are still running */
980 /* run the respawn stuff */
981 a->pid = run(a->process, a->console, FALSE);
984 /* run the askfirst stuff */
985 a->pid = run(a->process, a->console, TRUE);
987 /* silence the compiler's incessant whining */
993 /* Wait for a child process to exit */
994 wpid = wait(&status);
996 /* Find out who died and clean up their corpse */
997 for (a = initActionList; a; a = a->nextPtr) {
998 if (a->pid == wpid) {
1001 "Process '%s' (pid %d) exited. Scheduling it for restart.\n",
1012 c-file-style: "linux"