summaryrefslogtreecommitdiff
path: root/shell/hush.c
diff options
context:
space:
mode:
Diffstat (limited to 'shell/hush.c')
-rw-r--r--shell/hush.c73
1 files changed, 42 insertions, 31 deletions
diff --git a/shell/hush.c b/shell/hush.c
index 2cf2170..e9cec1c 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -95,6 +95,7 @@
//config:config HUSH
//config: bool "hush (68 kb)"
//config: default y
+//config: select SHELL_HUSH
//config: help
//config: hush is a small shell. It handles the normal flow control
//config: constructs such as if/then/elif/else/fi, for/in/do/done, while loops,
@@ -106,10 +107,20 @@
//config: It does not handle select, aliases, tilde expansion,
//config: &>file and >&file redirection of stdout+stderr.
//config:
+// This option is visible (has a description) to make it possible to select
+// a "scripted" applet (such as NOLOGIN) but avoid selecting any shells:
+//config:config SHELL_HUSH
+//config: bool "Internal shell for embedded script support"
+//config: default n
+//config:
+//config:# hush options
+//config:# It's only needed to get "nice" menuconfig indenting.
+//config:if SHELL_HUSH || HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config:
//config:config HUSH_BASH_COMPAT
//config: bool "bash-compatible extensions"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_BRACE_EXPANSION
//config: bool "Brace expansion"
@@ -133,7 +144,7 @@
//config:config HUSH_INTERACTIVE
//config: bool "Interactive mode"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config: help
//config: Enable interactive mode (prompt and command editing).
//config: Without this, hush simply reads and executes commands
@@ -159,31 +170,31 @@
//config:config HUSH_TICK
//config: bool "Support command substitution"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config: help
//config: Enable `command` and $(command).
//config:
//config:config HUSH_IF
//config: bool "Support if/then/elif/else/fi"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_LOOPS
//config: bool "Support for, while and until loops"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_CASE
//config: bool "Support case ... esac statement"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config: help
//config: Enable case ... esac statement. +400 bytes.
//config:
//config:config HUSH_FUNCTIONS
//config: bool "Support funcname() { commands; } syntax"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config: help
//config: Enable support for shell functions. +800 bytes.
//config:
@@ -197,7 +208,7 @@
//config:config HUSH_RANDOM_SUPPORT
//config: bool "Pseudorandom generator and $RANDOM variable"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config: help
//config: Enable pseudorandom generator and dynamic variable "$RANDOM".
//config: Each read of "$RANDOM" will generate a new pseudorandom value.
@@ -205,7 +216,7 @@
//config:config HUSH_MODE_X
//config: bool "Support 'hush -x' option and 'set -x' command"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config: help
//config: This instructs hush to print commands before execution.
//config: Adds ~300 bytes.
@@ -213,27 +224,27 @@
//config:config HUSH_ECHO
//config: bool "echo builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_PRINTF
//config: bool "printf builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_TEST
//config: bool "test builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_HELP
//config: bool "help builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_EXPORT
//config: bool "export builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_EXPORT_N
//config: bool "Support 'export -n' option"
@@ -245,83 +256,83 @@
//config:config HUSH_READONLY
//config: bool "readonly builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config: help
//config: Enable support for read-only variables.
//config:
//config:config HUSH_KILL
//config: bool "kill builtin (supports kill %jobspec)"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_WAIT
//config: bool "wait builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_COMMAND
//config: bool "command builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_TRAP
//config: bool "trap builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_TYPE
//config: bool "type builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_TIMES
//config: bool "times builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_READ
//config: bool "read builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_SET
//config: bool "set builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_UNSET
//config: bool "unset builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_ULIMIT
//config: bool "ulimit builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_UMASK
//config: bool "umask builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_GETOPTS
//config: bool "getopts builtin"
//config: default y
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
//config:
//config:config HUSH_MEMLEAK
//config: bool "memleak builtin (debugging)"
//config: default n
-//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH
+//config: depends on SHELL_HUSH
+//config:
+//config:endif # hush options
//applet:IF_HUSH(APPLET(hush, BB_DIR_BIN, BB_SUID_DROP))
// APPLET_ODDNAME:name main location suid_type help
//applet:IF_SH_IS_HUSH( APPLET_ODDNAME(sh, hush, BB_DIR_BIN, BB_SUID_DROP, hush))
//applet:IF_BASH_IS_HUSH(APPLET_ODDNAME(bash, hush, BB_DIR_BIN, BB_SUID_DROP, hush))
-//kbuild:lib-$(CONFIG_HUSH) += hush.o match.o shell_common.o
-//kbuild:lib-$(CONFIG_SH_IS_HUSH) += hush.o match.o shell_common.o
-//kbuild:lib-$(CONFIG_BASH_IS_HUSH) += hush.o match.o shell_common.o
+//kbuild:lib-$(CONFIG_SHELL_HUSH) += hush.o match.o shell_common.o
//kbuild:lib-$(CONFIG_HUSH_RANDOM_SUPPORT) += random.o
/* -i (interactive) is also accepted,