X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/396dbf68b1cfdce2e6f455b5ec646b4c5b65c55e..a46cfc6bccf2343230f701e86fa88be1404ca1ce:/package/busybox/config/shell/Config.in diff --git a/package/busybox/config/shell/Config.in b/package/busybox/config/shell/Config.in index 4107e127d..a271a386d 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. @@ -5,37 +6,10 @@ 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" - -config BUSYBOX_CONFIG_FEATURE_SH_IS_HUSH - select BUSYBOX_CONFIG_HUSH - bool "hush" - -####config FEATURE_SH_IS_LASH -#### select LASH -#### bool "lash" - -config BUSYBOX_CONFIG_FEATURE_SH_IS_MSH - select BUSYBOX_CONFIG_MSH - bool "msh" - -config BUSYBOX_CONFIG_FEATURE_SH_IS_NONE - bool "none" - -endchoice - config BUSYBOX_CONFIG_ASH bool "ash" default y + depends on !BUSYBOX_CONFIG_NOMMU help Tha 'ash' shell adds about 60k in the default configuration and is the most complete and most pedantically correct shell included with @@ -43,9 +17,6 @@ config BUSYBOX_CONFIG_ASH shell (by Herbert Xu), which was created by porting the 'ash' shell (written by Kenneth Almquist) from NetBSD. -comment "Ash Shell Options" - depends on BUSYBOX_CONFIG_ASH - config BUSYBOX_CONFIG_ASH_BASH_COMPAT bool "bash-compatible extensions" default y @@ -53,80 +24,54 @@ config BUSYBOX_CONFIG_ASH_BASH_COMPAT help Enable bash-compatible extensions. -config BUSYBOX_CONFIG_ASH_JOB_CONTROL - bool "Job control" - default y - depends on BUSYBOX_CONFIG_ASH - help - Enable job control in the ash shell. - -config BUSYBOX_CONFIG_ASH_READ_NCHARS - bool "'read -n N' and 'read -s' support" +config BUSYBOX_CONFIG_ASH_IDLE_TIMEOUT + bool "Idle timeout variable" default n depends on BUSYBOX_CONFIG_ASH help - 'read -n N' will return a value after N characters have been read. - 'read -s' will read without echoing the user's input. + Enables bash-like auto-logout after $TMOUT seconds of idle time. -config BUSYBOX_CONFIG_ASH_READ_TIMEOUT - bool "'read -t S' support" +config BUSYBOX_CONFIG_ASH_JOB_CONTROL + bool "Job control" default y depends on BUSYBOX_CONFIG_ASH help - 'read -t S' will return a value after S seconds have passed. - This implementation will allow fractional seconds, expressed - as a decimal fraction, e.g. 'read -t 2.5 foo'. + Enable job control in the ash shell. config BUSYBOX_CONFIG_ASH_ALIAS - bool "alias support" + bool "Alias support" default y depends on BUSYBOX_CONFIG_ASH help Enable alias support in the ash shell. -config BUSYBOX_CONFIG_ASH_MATH_SUPPORT - bool "Posix math support" - default y - depends on BUSYBOX_CONFIG_ASH - help - Enable math support in the ash shell. - -config BUSYBOX_CONFIG_ASH_MATH_SUPPORT_64 - bool "Extend Posix math support to 64 bit" - default y - depends on BUSYBOX_CONFIG_ASH_MATH_SUPPORT - help - Enable 64-bit math support in the ash shell. This will make - the shell slightly larger, but will allow computation with very - large numbers. - config BUSYBOX_CONFIG_ASH_GETOPTS bool "Builtin getopt to parse positional parameters" default y depends on BUSYBOX_CONFIG_ASH help - Enable getopts builtin in the ash shell. + Enable support for getopts builtin in ash. config BUSYBOX_CONFIG_ASH_BUILTIN_ECHO bool "Builtin version of 'echo'" default y depends on BUSYBOX_CONFIG_ASH help - Enable support for echo, builtin to ash. + Enable support for echo builtin in ash. config BUSYBOX_CONFIG_ASH_BUILTIN_PRINTF bool "Builtin version of 'printf'" default y depends on BUSYBOX_CONFIG_ASH help - Enable support for printf, builtin to ash. + Enable support for printf builtin in ash. config BUSYBOX_CONFIG_ASH_BUILTIN_TEST bool "Builtin version of 'test'" default y depends on BUSYBOX_CONFIG_ASH help - Enable support for test, builtin to ash. + Enable support for test builtin in ash. config BUSYBOX_CONFIG_ASH_CMDCMD bool "'command' command to override shell builtins" @@ -142,7 +87,7 @@ config BUSYBOX_CONFIG_ASH_MAIL default n depends on BUSYBOX_CONFIG_ASH help - Enable "check for new mail" in the ash shell. + Enable "check for new mail" function in the ash shell. config BUSYBOX_CONFIG_ASH_OPTIMIZE_FOR_SIZE bool "Optimize for size instead of speed" @@ -152,14 +97,14 @@ config BUSYBOX_CONFIG_ASH_OPTIMIZE_FOR_SIZE Compile ash for reduced size at the price of speed. config BUSYBOX_CONFIG_ASH_RANDOM_SUPPORT - bool "Pseudorandom generator and variable $RANDOM" + bool "Pseudorandom generator and $RANDOM variable" default n depends on BUSYBOX_CONFIG_ASH help Enable pseudorandom generator and dynamic variable "$RANDOM". Each read of "$RANDOM" will generate a new pseudorandom value. You can reset the generator by using a specified start value. - After "unset RANDOM" then generator will switch off and this + After "unset RANDOM" the generator will switch off and this variable will no longer have special treatment. config BUSYBOX_CONFIG_ASH_EXPAND_PRMT @@ -167,45 +112,105 @@ config BUSYBOX_CONFIG_ASH_EXPAND_PRMT default y depends on BUSYBOX_CONFIG_ASH help - "PS#" may be contain volatile content, such as backquote commands. + "PS#" may contain volatile content, such as backquote commands. This option recreates the prompt string from the environment variable each time it is displayed. +config BUSYBOX_CONFIG_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 2>&1' + config BUSYBOX_CONFIG_HUSH bool "hush" default n help - hush is a very small shell (just 18k) and it has fairly complete - Bourne shell grammar. It even handles all the normal flow control - options such as if/then/elif/else/fi, for/in/do/done, while loops, - case/esac. + hush is a small shell (25k). It handles the normal flow control + constructs such as if/then/elif/else/fi, for/in/do/done, while loops, + case/esac. Redirections, here documents, $((arithmetic)) + and functions are supported. - It uses only vfork, so it can be used on uClinux systems. + It will compile and work on no-mmu systems. - It does not handle select, functions, here documents ( << - word ), arithmetic expansion, aliases, brace expansion, tilde - expansion, &> and >& redirection of stdout+stderr, etc. + It does not handle select, aliases, tilde expansion, + &>file and >&file redirection of stdout+stderr. + +config BUSYBOX_CONFIG_HUSH_BASH_COMPAT + bool "bash-compatible extensions" + default y + depends on BUSYBOX_CONFIG_HUSH + help + Enable bash-compatible extensions. + +config BUSYBOX_CONFIG_HUSH_BRACE_EXPANSION + bool "Brace expansion" + default n + depends on BUSYBOX_CONFIG_HUSH_BASH_COMPAT + help + Enable {abc,def} extension. config BUSYBOX_CONFIG_HUSH_HELP bool "help builtin" - default n + default y depends on BUSYBOX_CONFIG_HUSH help Enable help builtin in hush. Code size + ~1 kbyte. config BUSYBOX_CONFIG_HUSH_INTERACTIVE bool "Interactive mode" - default n + default y depends on BUSYBOX_CONFIG_HUSH help Enable interactive mode (prompt and command editing). Without this, hush simply reads and executes commands - from stdin just like a shell script from the file. + from stdin just like a shell script from a file. No prompt, no PS1/PS2 magic shell variables. +config BUSYBOX_CONFIG_HUSH_SAVEHISTORY + bool "Save command history to .hush_history" + default n + depends on BUSYBOX_CONFIG_HUSH_INTERACTIVE && BUSYBOX_CONFIG_FEATURE_EDITING_SAVEHISTORY + help + Enable history saving in hush. + config BUSYBOX_CONFIG_HUSH_JOB bool "Job control" - default n + default y depends on BUSYBOX_CONFIG_HUSH_INTERACTIVE help Enable job control: Ctrl-Z backgrounds, Ctrl-C interrupts current @@ -216,65 +221,158 @@ config BUSYBOX_CONFIG_HUSH_JOB config BUSYBOX_CONFIG_HUSH_TICK bool "Process substitution" - default n + default y depends on BUSYBOX_CONFIG_HUSH help Enable process substitution `command` and $(command) in hush. config BUSYBOX_CONFIG_HUSH_IF bool "Support if/then/elif/else/fi" - default n + default y depends on BUSYBOX_CONFIG_HUSH help Enable if/then/elif/else/fi in hush. config BUSYBOX_CONFIG_HUSH_LOOPS bool "Support for, while and until loops" - default n + default y depends on BUSYBOX_CONFIG_HUSH help Enable for, while and until loops in hush. - As of 2008-07, break and continue statements are not supported. config BUSYBOX_CONFIG_HUSH_CASE bool "Support case ... esac statement" - default n + default y depends on BUSYBOX_CONFIG_HUSH help Enable case ... esac statement in hush. +400 bytes. -config BUSYBOX_CONFIG_LASH - bool "lash" +config BUSYBOX_CONFIG_HUSH_FUNCTIONS + bool "Support funcname() { commands; } syntax" + default y + depends on BUSYBOX_CONFIG_HUSH + help + Enable support for shell functions in hush. +800 bytes. + +config BUSYBOX_CONFIG_HUSH_LOCAL + bool "Support local builtin" + default y + depends on BUSYBOX_CONFIG_HUSH_FUNCTIONS + help + Enable support for local variables in functions. + +config BUSYBOX_CONFIG_HUSH_RANDOM_SUPPORT + bool "Pseudorandom generator and $RANDOM variable" default n - select BUSYBOX_CONFIG_HUSH + depends on BUSYBOX_CONFIG_HUSH help - lash is deprecated and will be removed, please migrate to hush. + Enable pseudorandom generator and dynamic variable "$RANDOM". + Each read of "$RANDOM" will generate a new pseudorandom value. + +config BUSYBOX_CONFIG_HUSH_EXPORT_N + bool "Support 'export -n' option" + default y + depends on BUSYBOX_CONFIG_HUSH + help + export -n unexports variables. It is a bash extension. + +config BUSYBOX_CONFIG_HUSH_MODE_X + bool "Support 'hush -x' option and 'set -x' command" + default n + depends on BUSYBOX_CONFIG_HUSH + help + This instructs hush to print commands before execution. + Adds ~300 bytes. config BUSYBOX_CONFIG_MSH - bool "msh" + bool "msh (deprecated: aliased to hush)" default n + select BUSYBOX_CONFIG_HUSH + help + msh is deprecated and will be removed, please migrate to hush. + + +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 - The minix shell (adds just 30k) is quite complete and handles things - like for/do/done, case/esac and all the things you expect a Bourne - shell to do. It is not always pedantically correct about Bourne - shell grammar (try running the shell testscript "tests/sh.testcases" - on it and compare vs bash) but for most things it works quite well. - It uses only vfork, so it can be used on uClinux systems. + 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. -comment "Bourne Shell Options" - depends on BUSYBOX_CONFIG_MSH || BUSYBOX_CONFIG_LASH || BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_ASH +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_SH_MATH_SUPPORT + bool "POSIX math support" + default y + depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_HUSH + help + Enable math support in the shell via $((...)) syntax. + +config BUSYBOX_CONFIG_SH_MATH_SUPPORT_64 + bool "Extend POSIX math support to 64 bit" + default y + depends on BUSYBOX_CONFIG_SH_MATH_SUPPORT + help + Enable 64-bit math support in the shell. This will make the shell + slightly larger, but will allow computation with very large numbers. + This is not in POSIX, so do not rely on this in portable code. 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 @@ -307,11 +405,11 @@ 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 _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 _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 @@ -319,26 +417,17 @@ config BUSYBOX_CONFIG_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_CONFIG_CTTYHACK - bool "cttyhack" +config BUSYBOX_CONFIG_FEATURE_SH_HISTFILESIZE + bool "Use $HISTFILESIZE" default n + depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_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. + 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. - 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