diff options
| author | Denys Vlasenko | 2018-11-01 09:53:25 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2018-11-01 10:15:13 +0100 |
| commit | 4f2ef4a836be37b25808c94f41c7c85895db6f93 (patch) | |
| tree | e224e4f3b8513b35655da80b26369d42bd62d24d /include | |
| parent | 552796791f8c5aa12dfb790e3a94c2d905f367ee (diff) | |
| download | busybox-4f2ef4a836be37b25808c94f41c7c85895db6f93.zip busybox-4f2ef4a836be37b25808c94f41c7c85895db6f93.tar.gz | |
ash: allow shell scripts to be embedded in the binary
To assist in the deployment of shell scripts it may be convenient
to embed them in the BusyBox binary.
'Embed scripts in the binary' takes any files in the directory
'embed', concatenates them with null separators, compresses them
and embeds them in the binary.
When scripts are embedded in the binary, scripts can be run as
'busybox SCRIPT [ARGS]' or by usual (sym)link mechanism.
embed/nologin is provided as an example.
function old new delta
packed_scripts - 123 +123
unpack_scripts - 87 +87
ash_main 1103 1171 +68
run_applet_and_exit 78 128 +50
get_script_content - 32 +32
script_names - 10 +10
expmeta 663 659 -4
------------------------------------------------------------------------------
(add/remove: 4/0 grow/shrink: 2/1 up/down: 370/-4) Total: 366 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/.gitignore | 1 | ||||
| -rw-r--r-- | include/libbb.h | 8 |
2 files changed, 9 insertions, 0 deletions
diff --git a/include/.gitignore b/include/.gitignore index 75afff9..13a96e0 100644 --- a/include/.gitignore +++ b/include/.gitignore @@ -5,6 +5,7 @@ /autoconf.h /bbconfigopts_bz2.h /bbconfigopts.h +/embedded_scripts.h /NUM_APPLETS.h /usage_compressed.h /usage.h diff --git a/include/libbb.h b/include/libbb.h index 140404f..affff58 100644 --- a/include/libbb.h +++ b/include/libbb.h @@ -1321,9 +1321,17 @@ void bb_logenv_override(void) FAST_FUNC; #define MAIN_EXTERNALLY_VISIBLE #endif +/* Embedded script support */ +//int find_script_by_name(const char *arg IF_FEATURE_SH_STANDALONE(, int offset)) FAST_FUNC; +char *get_script_content(unsigned n) FAST_FUNC; /* Applets which are useful from another applets */ int bb_cat(char** argv) FAST_FUNC; +int ash_main(int argc, char** argv) +#if ENABLE_ASH || ENABLE_SH_IS_ASH || ENABLE_BASH_IS_ASH + MAIN_EXTERNALLY_VISIBLE +#endif +; /* If shell needs them, they exist even if not enabled as applets */ int echo_main(int argc, char** argv) IF_ECHO(MAIN_EXTERNALLY_VISIBLE); int printf_main(int argc, char **argv) IF_PRINTF(MAIN_EXTERNALLY_VISIBLE); |