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-rw-r--r--Config.in5
-rw-r--r--libbb/appletlib.c92
2 files changed, 59 insertions, 38 deletions
diff --git a/Config.in b/Config.in
index ae21f52ef..01680af1f 100644
--- a/Config.in
+++ b/Config.in
@@ -178,6 +178,11 @@ config BUSYBOX
Running "busybox APPLET [ARGS...]" will still work, of course.
+config FEATURE_SHOW_SCRIPT
+ bool "Support --show SCRIPT"
+ default y
+ depends on BUSYBOX
+
config FEATURE_INSTALLER
bool "Support --install [-s] to install applet links at runtime"
default y
diff --git a/libbb/appletlib.c b/libbb/appletlib.c
index a0ebaca29..a79a37efb 100644
--- a/libbb/appletlib.c
+++ b/libbb/appletlib.c
@@ -756,6 +756,44 @@ static void install_links(const char *busybox UNUSED_PARAM,
static void run_applet_and_exit(const char *name, char **argv) NORETURN;
+# if NUM_SCRIPTS > 0
+static int find_script_by_name(const char *name)
+{
+ int i;
+ int applet = find_applet_by_name(name);
+
+ if (applet >= 0) {
+ for (i = 0; i < NUM_SCRIPTS; ++i)
+ if (applet_numbers[i] == applet)
+ return i;
+ }
+ return -1;
+}
+
+int scripted_main(int argc UNUSED_PARAM, char **argv)
+{
+ int script = find_script_by_name(applet_name);
+ if (script >= 0)
+ exit(ash_main(-script - 1, argv));
+ return 0;
+}
+
+char* FAST_FUNC
+get_script_content(unsigned n)
+{
+ char *t = unpack_bz2_data(packed_scripts, sizeof(packed_scripts),
+ UNPACKED_SCRIPTS_LENGTH);
+ if (t) {
+ while (n != 0) {
+ while (*t++ != '\0')
+ continue;
+ n--;
+ }
+ }
+ return t;
+}
+# endif /* NUM_SCRIPTS > 0 */
+
# if ENABLE_BUSYBOX
# if ENABLE_FEATURE_SH_STANDALONE && ENABLE_FEATURE_TAB_COMPLETION
/*
@@ -793,6 +831,9 @@ int busybox_main(int argc UNUSED_PARAM, char **argv)
"\n"
"Usage: busybox [function [arguments]...]\n"
" or: busybox --list"IF_FEATURE_INSTALLER("[-full]")"\n"
+# if ENABLE_FEATURE_SHOW_SCRIPT && NUM_SCRIPTS > 0
+ " or: busybox --show SCRIPT\n"
+# endif
IF_FEATURE_INSTALLER(
" or: busybox --install [-s] [DIR]\n"
)
@@ -838,6 +879,19 @@ int busybox_main(int argc UNUSED_PARAM, char **argv)
return 0;
}
+# if ENABLE_FEATURE_SHOW_SCRIPT && NUM_SCRIPTS > 0
+ if (strcmp(argv[1], "--show") == 0) {
+ int n;
+ if (!argv[2])
+ bb_error_msg_and_die(bb_msg_requires_arg, "--show");
+ n = find_script_by_name(argv[2]);
+ if (n < 0)
+ bb_error_msg_and_die("script '%s' not found", argv[2]);
+ full_write1_str(get_script_content(n));
+ return 0;
+ }
+# endif
+
if (is_prefixed_with(argv[1], "--list")) {
unsigned i = 0;
const char *a = applet_names;
@@ -939,44 +993,6 @@ void FAST_FUNC run_applet_no_and_exit(int applet_no, const char *name, char **ar
}
# endif /* NUM_APPLETS > 0 */
-# if NUM_SCRIPTS > 0
-static int find_script_by_name(const char *name)
-{
- int i;
- int applet = find_applet_by_name(name);
-
- if (applet >= 0) {
- for (i = 0; i < NUM_SCRIPTS; ++i)
- if (applet_numbers[i] == applet)
- return i;
- }
- return -1;
-}
-
-int scripted_main(int argc UNUSED_PARAM, char **argv)
-{
- int script = find_script_by_name(applet_name);
- if (script >= 0)
- exit(ash_main(-script - 1, argv));
- return 0;
-}
-
-char* FAST_FUNC
-get_script_content(unsigned n)
-{
- char *t = unpack_bz2_data(packed_scripts, sizeof(packed_scripts),
- UNPACKED_SCRIPTS_LENGTH);
- if (t) {
- while (n != 0) {
- while (*t++ != '\0')
- continue;
- n--;
- }
- }
- return t;
-}
-# endif /* NUM_SCRIPTS > 0 */
-
# if ENABLE_BUSYBOX || NUM_APPLETS > 0
static NORETURN void run_applet_and_exit(const char *name, char **argv)
{