diff options
Diffstat (limited to 'package/busybox/config/shell/Config.in')
| -rw-r--r-- | package/busybox/config/shell/Config.in | 261 |
1 files changed, 145 insertions, 116 deletions
diff --git a/package/busybox/config/shell/Config.in b/package/busybox/config/shell/Config.in index 674aaabbe..52a96c7e2 100644 --- a/package/busybox/config/shell/Config.in +++ b/package/busybox/config/shell/Config.in @@ -1,3 +1,4 @@ +# DO NOT EDIT. This file is generated from Config.src # # For a description of the syntax of this configuration file, # see scripts/kbuild/config-language.txt. @@ -5,58 +6,6 @@ menu "Shells" -choice - prompt "Choose which shell is aliased to 'sh' name" - default FEATURE_SH_IS_ASH - help - Choose a shell. The ash shell is the most bash compatible - and full featured one. - -config BUSYBOX_FEATURE_SH_IS_ASH - select BUSYBOX_ASH - bool "ash" - depends on !BUSYBOX_NOMMU - -config BUSYBOX_FEATURE_SH_IS_HUSH - select BUSYBOX_HUSH - bool "hush" - -config BUSYBOX_FEATURE_SH_IS_NONE - bool "none" - -endchoice - -choice - prompt "Choose which shell is aliased to 'bash' name" - default BUSYBOX_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_FEATURE_BASH_IS_ASH - depends on BUSYBOX_ASH - bool "ash" - depends on !BUSYBOX_NOMMU - -config BUSYBOX_FEATURE_BASH_IS_HUSH - depends on BUSYBOX_HUSH - bool "hush" - -config BUSYBOX_FEATURE_BASH_IS_NONE - bool "none" - -endchoice - config BUSYBOX_ASH bool "ash" default y @@ -75,6 +24,13 @@ config BUSYBOX_ASH_BASH_COMPAT help Enable bash-compatible extensions. +config BUSYBOX_ASH_IDLE_TIMEOUT + bool "Idle timeout variable" + default n + depends on BUSYBOX_ASH + help + Enables bash-like auto-logout after $TMOUT seconds of idle time. + config BUSYBOX_ASH_JOB_CONTROL bool "Job control" default y @@ -83,7 +39,7 @@ config BUSYBOX_ASH_JOB_CONTROL Enable job control in the ash shell. config BUSYBOX_ASH_ALIAS - bool "alias support" + bool "Alias support" default y depends on BUSYBOX_ASH help @@ -94,32 +50,32 @@ config BUSYBOX_ASH_GETOPTS default y depends on BUSYBOX_ASH help - Enable getopts builtin in the ash shell. + Enable support for getopts builtin in ash. config BUSYBOX_ASH_BUILTIN_ECHO bool "Builtin version of 'echo'" default y depends on BUSYBOX_ASH help - Enable support for echo, builtin to ash. + Enable support for echo builtin in ash. config BUSYBOX_ASH_BUILTIN_PRINTF bool "Builtin version of 'printf'" default y depends on BUSYBOX_ASH help - Enable support for printf, builtin to ash. + Enable support for printf builtin in ash. config BUSYBOX_ASH_BUILTIN_TEST bool "Builtin version of 'test'" default y depends on BUSYBOX_ASH help - Enable support for test, builtin to ash. + Enable support for test builtin in ash. config BUSYBOX_ASH_CMDCMD bool "'command' command to override shell builtins" - default n + default y depends on BUSYBOX_ASH help Enable support for the ash 'command' builtin, which allows @@ -131,7 +87,7 @@ config BUSYBOX_ASH_MAIL default n depends on BUSYBOX_ASH help - Enable "check for new mail" in the ash shell. + Enable "check for new mail" function in the ash shell. config BUSYBOX_ASH_OPTIMIZE_FOR_SIZE bool "Optimize for size instead of speed" @@ -142,7 +98,7 @@ config BUSYBOX_ASH_OPTIMIZE_FOR_SIZE config BUSYBOX_ASH_RANDOM_SUPPORT bool "Pseudorandom generator and $RANDOM variable" - default n + default y depends on BUSYBOX_ASH help Enable pseudorandom generator and dynamic variable "$RANDOM". @@ -160,6 +116,49 @@ config BUSYBOX_ASH_EXPAND_PRMT This option recreates the prompt string from the environment variable each time it is displayed. +config BUSYBOX_CTTYHACK + bool "cttyhack" + default n + help + One common problem reported on the mailing list is the "can't + access tty; job control turned off" error message, which typically + appears when one tries to use a shell with stdin/stdout on + /dev/console. + This device is special - it cannot be a controlling tty. + + The proper solution is to use the correct device instead of + /dev/console. + + cttyhack provides a "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). + On Linux it also checks sysfs for a pointer to the active console. + If cttyhack is able to find the real console device, it closes + stdin/out/err and reopens that device. + Then it executes the 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 + + Starting an interactive shell from boot shell script: + + setsid cttyhack sh + + Giving controlling tty to shell running with PID 1: + + # exec cttyhack sh + + Without cttyhack, you need to know exact tty name, + and do something like this: + + # exec setsid sh -c 'exec sh </dev/tty1 >/dev/tty1 2>&1' + + Starting getty on a controlling tty from a shell script: + + # getty 115200 $(cttyhack) config BUSYBOX_HUSH bool "hush" default n @@ -190,7 +189,7 @@ config BUSYBOX_HUSH_BRACE_EXPANSION config BUSYBOX_HUSH_HELP bool "help builtin" - default n + default y depends on BUSYBOX_HUSH help Enable help builtin in hush. Code size + ~1 kbyte. @@ -214,7 +213,7 @@ config BUSYBOX_HUSH_SAVEHISTORY config BUSYBOX_HUSH_JOB bool "Job control" - default n + default y depends on BUSYBOX_HUSH_INTERACTIVE help Enable job control: Ctrl-Z backgrounds, Ctrl-C interrupts current @@ -225,61 +224,61 @@ config BUSYBOX_HUSH_JOB config BUSYBOX_HUSH_TICK bool "Process substitution" - default n + default y depends on BUSYBOX_HUSH help Enable process substitution `command` and $(command) in hush. config BUSYBOX_HUSH_IF bool "Support if/then/elif/else/fi" - default n + default y depends on BUSYBOX_HUSH help Enable if/then/elif/else/fi in hush. config BUSYBOX_HUSH_LOOPS bool "Support for, while and until loops" - default n + default y depends on BUSYBOX_HUSH help Enable for, while and until loops in hush. config BUSYBOX_HUSH_CASE bool "Support case ... esac statement" - default n + default y depends on BUSYBOX_HUSH help Enable case ... esac statement in hush. +400 bytes. config BUSYBOX_HUSH_FUNCTIONS bool "Support funcname() { commands; } syntax" - default n + default y depends on BUSYBOX_HUSH help Enable support for shell functions in hush. +800 bytes. config BUSYBOX_HUSH_LOCAL bool "Support local builtin" - default n + default y depends on BUSYBOX_HUSH_FUNCTIONS help Enable support for local variables in functions. -config BUSYBOX_HUSH_EXPORT_N - bool "Support 'export -n' option" - default n - depends on BUSYBOX_HUSH - help - export -n unexports variables. It is a bash extension. - config BUSYBOX_HUSH_RANDOM_SUPPORT bool "Pseudorandom generator and $RANDOM variable" - default n + default y depends on BUSYBOX_HUSH help Enable pseudorandom generator and dynamic variable "$RANDOM". Each read of "$RANDOM" will generate a new pseudorandom value. +config BUSYBOX_HUSH_EXPORT_N + bool "Support 'export -n' option" + default y + depends on BUSYBOX_HUSH + help + export -n unexports variables. It is a bash extension. + config BUSYBOX_HUSH_MODE_X bool "Support 'hush -x' option and 'set -x' command" default y @@ -296,6 +295,61 @@ config BUSYBOX_MSH msh is deprecated and will be removed, please migrate to hush. + +choice + prompt "Choose which shell is aliased to 'sh' name" + default 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_FEATURE_SH_IS_ASH + depends on BUSYBOX_ASH + bool "ash" + depends on !BUSYBOX_NOMMU + +config BUSYBOX_FEATURE_SH_IS_HUSH + depends on BUSYBOX_HUSH + bool "hush" + +config BUSYBOX_FEATURE_SH_IS_NONE + bool "none" + +endchoice + +choice + prompt "Choose which shell is aliased to 'bash' name" + default 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_FEATURE_BASH_IS_ASH + depends on BUSYBOX_ASH + bool "ash" + depends on !BUSYBOX_NOMMU + +config BUSYBOX_FEATURE_BASH_IS_HUSH + depends on BUSYBOX_HUSH + bool "hush" + +config BUSYBOX_FEATURE_BASH_IS_NONE + bool "none" + +endchoice + + config BUSYBOX_SH_MATH_SUPPORT bool "POSIX math support" default y @@ -305,7 +359,7 @@ config BUSYBOX_SH_MATH_SUPPORT config BUSYBOX_SH_MATH_SUPPORT_64 bool "Extend POSIX math support to 64 bit" - default n + default y depends on BUSYBOX_SH_MATH_SUPPORT help Enable 64-bit math support in the shell. This will make the shell @@ -314,8 +368,8 @@ config BUSYBOX_SH_MATH_SUPPORT_64 config BUSYBOX_FEATURE_SH_EXTRA_QUIET bool "Hide message on interactive shell startup" - default n - depends on BUSYBOX_MSH || BUSYBOX_LASH || BUSYBOX_HUSH || BUSYBOX_ASH + default y + depends on BUSYBOX_HUSH || BUSYBOX_ASH help Remove the busybox introduction when starting a shell. @@ -357,9 +411,9 @@ config BUSYBOX_FEATURE_SH_NOFORK default n depends on (BUSYBOX_HUSH || BUSYBOX_ASH) && BUSYBOX_FEATURE_PREFER_APPLETS help - This option causes busybox shells [currently only ash] - to not execute typical fork/exec/wait sequence, but call <applet>_main - directly, if possible. (Sometimes it is not possible: for example, + This option causes busybox shells to not execute typical + fork/exec/wait sequence, but call <applet>_main directly, + if possible. (Sometimes it is not possible: for example, this is not possible in pipes). This will be done only for some applets (those which are marked @@ -367,42 +421,17 @@ config BUSYBOX_FEATURE_SH_NOFORK This may significantly speed up some shell scripts. - This feature is relatively new. Use with care. + This feature is relatively new. Use with care. Report bugs + to project mailing list. -config BUSYBOX_CTTYHACK - bool "cttyhack" - default n +config BUSYBOX_FEATURE_SH_HISTFILESIZE + bool "Use $HISTFILESIZE" + default y + depends on BUSYBOX_HUSH || BUSYBOX_ASH 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. 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 + This option makes busybox shells to use $HISTFILESIZE variable + to set shell history size. Note that its max value is capped + by "History size" setting in library tuning section. - Starting an interactive shell from boot shell script: - - setsid cttyhack sh - - Giving controlling tty to shell running with PID 1: - - # exec cttyhack sh - - Without cttyhack, you need to know exact tty name, - and do something like this: - - # exec setsid sh -c 'exec sh </dev/tty1 >/dev/tty1 2>&1' endmenu |