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-rw-r--r--toys/other/oneit.c45
1 files changed, 21 insertions, 24 deletions
diff --git a/toys/other/oneit.c b/toys/other/oneit.c
index 8bb482da..5bf4e941 100644
--- a/toys/other/oneit.c
+++ b/toys/other/oneit.c
@@ -1,27 +1,25 @@
-/* vi: set sw=4 ts=4:
- *
- * oneit.c - tiny init replacement to launch a single child process.
+/* oneit.c - tiny init replacement to launch a single child process.
*
* Copyright 2005, 2007 by Rob Landley <rob@landley.net>.
USE_ONEIT(NEWTOY(oneit, "^<1c:p", TOYFLAG_SBIN))
config ONEIT
- bool "oneit"
- default y
- help
- usage: oneit [-p] [-c /dev/tty0] command [...]
+ bool "oneit"
+ default y
+ help
+ usage: oneit [-p] [-c /dev/tty0] command [...]
- A simple init program that runs a single supplied command line with a
- controlling tty (so CTRL-C can kill it).
+ A simple init program that runs a single supplied command line with a
+ controlling tty (so CTRL-C can kill it).
- -p Power off instead of rebooting when command exits.
- -c Which console device to use.
+ -p Power off instead of rebooting when command exits.
+ -c Which console device to use.
- The oneit command runs the supplied command line as a child process
- (because PID 1 has signals blocked), attached to /dev/tty0, in its
- own session. Then oneit reaps zombies until the child exits, at
- which point it reboots (or with -p, powers off) the system.
+ The oneit command runs the supplied command line as a child process
+ (because PID 1 has signals blocked), attached to /dev/tty0, in its
+ own session. Then oneit reaps zombies until the child exits, at
+ which point it reboots (or with -p, powers off) the system.
*/
#define FOR_oneit
@@ -29,7 +27,7 @@ config ONEIT
#include <sys/reboot.h>
GLOBALS(
- char *console;
+ char *console;
)
// The minimum amount of work necessary to get ctrl-c and such to work is:
@@ -53,22 +51,21 @@ void oneit_main(void)
if (pid) {
// pid 1 just reaps zombies until it gets its child, then halts the system.
- while (pid!=wait(&i));
+ while (pid != wait(&i));
sync();
- // PID 1 can't call reboot() because it kills the task that calls it,
- // which causes the kernel to panic before the actual reboot happens.
- if (!vfork())
- reboot((toys.optflags & FLAG_p) ? RB_POWER_OFF : RB_AUTOBOOT);
- sleep(5);
- _exit(1);
+ // PID 1 can't call reboot() because it kills the task that calls it,
+ // which causes the kernel to panic before the actual reboot happens.
+ if (!vfork()) reboot((toys.optflags & FLAG_p) ? RB_POWER_OFF : RB_AUTOBOOT);
+ sleep(5);
+ _exit(1);
}
// Redirect stdio to /dev/tty0, with new session ID, so ctrl-c works.
setsid();
for (i=0; i<3; i++) {
close(i);
- xopen(TT.console ? TT.console : "/dev/tty0",O_RDWR);
+ xopen(TT.console ? TT.console : "/dev/tty0", O_RDWR);
}
// Can't xexec() here, because we vforked so we don't want to error_exit().