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Diffstat (limited to 'shell/Config.in')
| -rw-r--r-- | shell/Config.in | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/shell/Config.in b/shell/Config.in index 0279934..253752b 100644 --- a/shell/Config.in +++ b/shell/Config.in @@ -270,4 +270,24 @@ config FEATURE_SH_STANDALONE # that exact location with that exact name, this option will not work at # all. +config CTTYHACK + bool "cttyhack" + default n + help + One common problem reported on the mailing list is "can't access tty; + job control turned off" error message which typically appears when + one tries to use shell with stdin/stdout opened to /dev/console. + This device is special - it cannot be a controlling tty. + + Proper solution is to use correct device instead of /dev/console. + + cttyhack provides "quick and dirty" solution to this problem. + It analyzes stdin with various ioctls, trying to determine whether + it is a /dev/ttyN or /dev/ttySN (virtual terminal or serial line). + If it detects one, it closes stdin/out/err and reopens that device. + Then it executes given program. Usage example for /etc/inittab + (for busybox init): + + ::respawn:/bin/cttyhack /bin/sh + endmenu |