diff options
Diffstat (limited to 'package/busybox/config/shell')
| -rw-r--r-- | package/busybox/config/shell/Config.in | 103 |
1 files changed, 71 insertions, 32 deletions
diff --git a/package/busybox/config/shell/Config.in b/package/busybox/config/shell/Config.in index 5d492e239..d652dd307 100644 --- a/package/busybox/config/shell/Config.in +++ b/package/busybox/config/shell/Config.in @@ -5,34 +5,7 @@ menu "Shells" -choice - prompt "Choose your default shell" - default BUSYBOX_CONFIG_FEATURE_SH_IS_ASH - help - Choose a shell. The ash shell is the most bash compatible - and full featured one. - -config BUSYBOX_CONFIG_FEATURE_SH_IS_ASH - select BUSYBOX_CONFIG_ASH - bool "ash" - depends on !BUSYBOX_CONFIG_NOMMU -config BUSYBOX_CONFIG_FEATURE_SH_IS_HUSH - select BUSYBOX_CONFIG_HUSH - bool "hush" - -####config FEATURE_SH_IS_LASH -#### select LASH -#### bool "lash" - -####config FEATURE_SH_IS_MSH -#### select MSH -#### bool "msh" - -config BUSYBOX_CONFIG_FEATURE_SH_IS_NONE - bool "none" - -endchoice config BUSYBOX_CONFIG_ASH bool "ash" @@ -243,6 +216,61 @@ config BUSYBOX_CONFIG_HUSH_RANDOM_SUPPORT Enable pseudorandom generator and dynamic variable "$RANDOM". Each read of "$RANDOM" will generate a new pseudorandom value. + +choice + prompt "Choose which shell is aliased to 'sh' name" + default BUSYBOX_CONFIG_FEATURE_SH_IS_ASH + help + Choose which shell you want to be executed by 'sh' alias. + The ash shell is the most bash compatible and full featured one. + +# note: cannot use "select ASH" here, it breaks "make allnoconfig" +config BUSYBOX_CONFIG_FEATURE_SH_IS_ASH + depends on BUSYBOX_CONFIG_ASH + bool "ash" + depends on !BUSYBOX_CONFIG_NOMMU + +config BUSYBOX_CONFIG_FEATURE_SH_IS_HUSH + depends on BUSYBOX_CONFIG_HUSH + bool "hush" + +config BUSYBOX_CONFIG_FEATURE_SH_IS_NONE + bool "none" + +endchoice + +choice + prompt "Choose which shell is aliased to 'bash' name" + default BUSYBOX_CONFIG_FEATURE_BASH_IS_NONE + help + Choose which shell you want to be executed by 'bash' alias. + The ash shell is the most bash compatible and full featured one. + + Note that selecting this option does not switch on any bash + compatibility code. It merely makes it possible to install + /bin/bash (sym)link and run scripts which start with + #!/bin/bash line. + + Many systems use it in scripts which use bash-specific features, + even simple ones like $RANDOM. Without this option, busybox + can't be used for running them because it won't recongnize + "bash" as a supported applet name. + +config BUSYBOX_CONFIG_FEATURE_BASH_IS_ASH + depends on BUSYBOX_CONFIG_ASH + bool "ash" + depends on !BUSYBOX_CONFIG_NOMMU + +config BUSYBOX_CONFIG_FEATURE_BASH_IS_HUSH + depends on BUSYBOX_CONFIG_HUSH + bool "hush" + +config BUSYBOX_CONFIG_FEATURE_BASH_IS_NONE + bool "none" + +endchoice + + config BUSYBOX_CONFIG_LASH bool "lash (deprecated: aliased to hush)" default n @@ -285,14 +313,14 @@ config BUSYBOX_CONFIG_SH_MATH_SUPPORT_64 config BUSYBOX_CONFIG_FEATURE_SH_EXTRA_QUIET bool "Hide message on interactive shell startup" default n - depends on BUSYBOX_CONFIG_MSH || BUSYBOX_CONFIG_LASH || BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_ASH + depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_ASH help Remove the busybox introduction when starting a shell. config BUSYBOX_CONFIG_FEATURE_SH_STANDALONE bool "Standalone shell" default n - depends on (BUSYBOX_CONFIG_MSH || BUSYBOX_CONFIG_LASH || BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_ASH) && BUSYBOX_CONFIG_FEATURE_PREFER_APPLETS + depends on (BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_ASH) && BUSYBOX_CONFIG_FEATURE_PREFER_APPLETS help This option causes busybox shells to use busybox applets in preference to executables in the PATH whenever possible. For @@ -325,7 +353,7 @@ config BUSYBOX_CONFIG_FEATURE_SH_STANDALONE config BUSYBOX_CONFIG_FEATURE_SH_NOFORK bool "Run 'nofork' applets directly" default n - depends on (BUSYBOX_CONFIG_MSH || BUSYBOX_CONFIG_LASH || BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_ASH) && BUSYBOX_CONFIG_FEATURE_PREFER_APPLETS + depends on (BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_ASH) && BUSYBOX_CONFIG_FEATURE_PREFER_APPLETS help This option causes busybox shells [currently only ash] to not execute typical fork/exec/wait sequence, but call <applet>_main @@ -354,9 +382,20 @@ config BUSYBOX_CONFIG_CTTYHACK 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): + Then it executes given program. Opening the device will make + that device a controlling tty. This may require cttyhack + to be a session leader. + + Example for /etc/inittab (for busybox init): ::respawn:/bin/cttyhack /bin/sh + Giving controlling tty to shell running with PID 1: + + $ exec cttyhack sh + + Starting an interactive shell from boot shell script: + + setsid cttyhack sh + endmenu |