diff options
Diffstat (limited to 'init/Config.in')
| -rw-r--r-- | init/Config.in | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/init/Config.in b/init/Config.in index 4c5610246..f525abc8a 100644 --- a/init/Config.in +++ b/init/Config.in @@ -47,15 +47,18 @@ config FEATURE_KILL_DELAY wrong process!) config FEATURE_INIT_SCTTY - bool "Support running commands with a controlling-tty" + bool "Run commands with leading dash with controlling tty" default n depends on INIT help - If this option is enabled a command starting with hyphen (-) - is run in its own session (setsid(2)) and possibly with a - controlling tty (TIOCSCTTY). This is not the traditional init - behavour, but is often what you want in an embedded system where - the console is only accessed during development or for maintenance. + If this option is enabled, init will try to give a controlling + tty to any command which has leading hyphen (often it's "-/bin/sh"). + More precisely, init will do "ioctl(STDIN_FILENO, TIOCSCTTY, 0)". + If device attached to STDIN_FILENO can be a ctty but is not yet + a ctty for other session, it will become this process' ctty. + This is not the traditional init behavour, but is often what you want + in an embedded system where the console is only accessed during + development or for maintenance. NB: using cttyhack applet may work better. config FEATURE_INIT_SYSLOG |