Create find_applet_by_name function. Save 32 bytes.

8 files changed, 37 insertions, 41 deletions

diff --git a/applets/busybox.c b/applets/busybox.c
index f10467a..1409efa 100644
--- a/applets/busybox.c
+++ b/applets/busybox.c
@@ -87,8 +87,8 @@ static void install_links(const char *busybox, int use_symbolic_links)
 
 int main(int argc, char **argv)
 {
-	struct BB_applet search_applet, *applet;
-	const char				*s;
+	struct BB_applet *applet;
+	const char *s;
 
 	for (s = applet_name = argv[0]; *s != '\0';) {
 		if (*s++ == '/')
@@ -104,12 +104,9 @@ int main(int argc, char **argv)
 #endif
 
 	/* Do a binary search to find the applet entry given the name. */
-	search_applet.name = applet_name;
-	applet = bsearch(&search_applet, applets, NUM_APPLETS,
-			sizeof(struct BB_applet), applet_name_compare);
-	if (applet != NULL) {
+	if ((applet = find_applet_by_name(applet_name)) != NULL) {
 		if (applet->usage && argv[1] && strcmp(argv[1], "--help") == 0)
-			usage(applet->usage); 
+			usage(applet->usage);
 		exit((*(applet->main)) (argc, argv));
 	}
 
diff --git a/busybox.c b/busybox.c
index f10467a..1409efa 100644
--- a/busybox.c
+++ b/busybox.c
@@ -87,8 +87,8 @@ static void install_links(const char *busybox, int use_symbolic_links)
 
 int main(int argc, char **argv)
 {
-	struct BB_applet search_applet, *applet;
-	const char				*s;
+	struct BB_applet *applet;
+	const char *s;
 
 	for (s = applet_name = argv[0]; *s != '\0';) {
 		if (*s++ == '/')
@@ -104,12 +104,9 @@ int main(int argc, char **argv)
 #endif
 
 	/* Do a binary search to find the applet entry given the name. */
-	search_applet.name = applet_name;
-	applet = bsearch(&search_applet, applets, NUM_APPLETS,
-			sizeof(struct BB_applet), applet_name_compare);
-	if (applet != NULL) {
+	if ((applet = find_applet_by_name(applet_name)) != NULL) {
 		if (applet->usage && argv[1] && strcmp(argv[1], "--help") == 0)
-			usage(applet->usage); 
+			usage(applet->usage);
 		exit((*(applet->main)) (argc, argv));
 	}
 
diff --git a/busybox.h b/busybox.h
index e332ed4..fc5e8d8 100644
--- a/busybox.h
+++ b/busybox.h
@@ -88,7 +88,6 @@ extern const struct BB_applet applets[];
 #undef PROTOTYPES
 
 extern const char *applet_name;
-extern int applet_name_compare(const void *x, const void *y);
 
 extern void usage(const char *usage) __attribute__ ((noreturn));
 extern void error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
@@ -153,6 +152,7 @@ extern char *get_last_path_component(char *path);
 extern FILE *wfopen(const char *path, const char *mode);
 extern FILE *xfopen(const char *path, const char *mode);
 extern void chomp(char *s);
+extern struct BB_applet *find_applet_by_name(const char *name);
 
 #ifndef DMALLOC
 extern void *xmalloc (size_t size);
diff --git a/include/busybox.h b/include/busybox.h
index e332ed4..fc5e8d8 100644
--- a/include/busybox.h
+++ b/include/busybox.h
@@ -88,7 +88,6 @@ extern const struct BB_applet applets[];
 #undef PROTOTYPES
 
 extern const char *applet_name;
-extern int applet_name_compare(const void *x, const void *y);
 
 extern void usage(const char *usage) __attribute__ ((noreturn));
 extern void error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
@@ -153,6 +152,7 @@ extern char *get_last_path_component(char *path);
 extern FILE *wfopen(const char *path, const char *mode);
 extern FILE *xfopen(const char *path, const char *mode);
 extern void chomp(char *s);
+extern struct BB_applet *find_applet_by_name(const char *name);
 
 #ifndef DMALLOC
 extern void *xmalloc (size_t size);
diff --git a/lash.c b/lash.c
index cc0d786..87c37ca 100644
--- a/lash.c
+++ b/lash.c
@@ -67,7 +67,6 @@
 static const int MAX_LINE = 256;	/* size of input buffer for cwd data */
 static const int MAX_READ = 128;	/* size of input buffer for `read' builtin */
 #define JOB_STATUS_FORMAT "[%d] %-22s %.40s\n"
-extern size_t NUM_APPLETS;
 
 
 enum redir_type { REDIRECT_INPUT, REDIRECT_OVERWRITE,
@@ -1371,7 +1370,8 @@ static int pseudo_exec(struct child_prog *child)
 {
 	struct built_in_command *x;
 #ifdef BB_FEATURE_SH_STANDALONE_SHELL
-	struct BB_applet search_applet, *applet;
+	struct BB_applet *applet;
+	const char *name;
 #endif
 
 	/* Check if the command matches any of the non-forking builtins.
@@ -1404,7 +1404,7 @@ static int pseudo_exec(struct child_prog *child)
 	 * /bin/foo invocation will fork and exec /bin/foo, even if
 	 * /bin/foo is a symlink to busybox.
 	 */
-	search_applet.name = child->argv[0];
+	name = child->argv[0];
 
 #ifdef BB_FEATURE_SH_APPLETS_ALWAYS_WIN
 	/* If you enable BB_FEATURE_SH_APPLETS_ALWAYS_WIN, then
@@ -1412,13 +1412,11 @@ static int pseudo_exec(struct child_prog *child)
 	 * /bin/cat exists on the filesystem and is _not_ busybox.
 	 * Some systems want this, others do not.  Choose wisely.  :-)
 	 */
-	search_applet.name = get_last_path_component(search_applet.name);
+	name = get_last_path_component(name);
 #endif
 
 	/* Do a binary search to find the applet entry given the name. */
-	applet = bsearch(&search_applet, applets, NUM_APPLETS,
-			sizeof(struct BB_applet), applet_name_compare);
-	if (applet != NULL) {
+	if ((applet = find_applet_by_name(name)) != NULL) {
 		int argc_l;
 		char** argv=child->argv;
 		for(argc_l=0;*argv!=NULL; argv++, argc_l++);
diff --git a/sh.c b/sh.c
index cc0d786..87c37ca 100644
--- a/sh.c
+++ b/sh.c
@@ -67,7 +67,6 @@
 static const int MAX_LINE = 256;	/* size of input buffer for cwd data */
 static const int MAX_READ = 128;	/* size of input buffer for `read' builtin */
 #define JOB_STATUS_FORMAT "[%d] %-22s %.40s\n"
-extern size_t NUM_APPLETS;
 
 
 enum redir_type { REDIRECT_INPUT, REDIRECT_OVERWRITE,
@@ -1371,7 +1370,8 @@ static int pseudo_exec(struct child_prog *child)
 {
 	struct built_in_command *x;
 #ifdef BB_FEATURE_SH_STANDALONE_SHELL
-	struct BB_applet search_applet, *applet;
+	struct BB_applet *applet;
+	const char *name;
 #endif
 
 	/* Check if the command matches any of the non-forking builtins.
@@ -1404,7 +1404,7 @@ static int pseudo_exec(struct child_prog *child)
 	 * /bin/foo invocation will fork and exec /bin/foo, even if
 	 * /bin/foo is a symlink to busybox.
 	 */
-	search_applet.name = child->argv[0];
+	name = child->argv[0];
 
 #ifdef BB_FEATURE_SH_APPLETS_ALWAYS_WIN
 	/* If you enable BB_FEATURE_SH_APPLETS_ALWAYS_WIN, then
@@ -1412,13 +1412,11 @@ static int pseudo_exec(struct child_prog *child)
 	 * /bin/cat exists on the filesystem and is _not_ busybox.
 	 * Some systems want this, others do not.  Choose wisely.  :-)
 	 */
-	search_applet.name = get_last_path_component(search_applet.name);
+	name = get_last_path_component(name);
 #endif
 
 	/* Do a binary search to find the applet entry given the name. */
-	applet = bsearch(&search_applet, applets, NUM_APPLETS,
-			sizeof(struct BB_applet), applet_name_compare);
-	if (applet != NULL) {
+	if ((applet = find_applet_by_name(name)) != NULL) {
 		int argc_l;
 		char** argv=child->argv;
 		for(argc_l=0;*argv!=NULL; argv++, argc_l++);
diff --git a/shell/lash.c b/shell/lash.c
index cc0d786..87c37ca 100644
--- a/shell/lash.c
+++ b/shell/lash.c
@@ -67,7 +67,6 @@
 static const int MAX_LINE = 256;	/* size of input buffer for cwd data */
 static const int MAX_READ = 128;	/* size of input buffer for `read' builtin */
 #define JOB_STATUS_FORMAT "[%d] %-22s %.40s\n"
-extern size_t NUM_APPLETS;
 
 
 enum redir_type { REDIRECT_INPUT, REDIRECT_OVERWRITE,
@@ -1371,7 +1370,8 @@ static int pseudo_exec(struct child_prog *child)
 {
 	struct built_in_command *x;
 #ifdef BB_FEATURE_SH_STANDALONE_SHELL
-	struct BB_applet search_applet, *applet;
+	struct BB_applet *applet;
+	const char *name;
 #endif
 
 	/* Check if the command matches any of the non-forking builtins.
@@ -1404,7 +1404,7 @@ static int pseudo_exec(struct child_prog *child)
 	 * /bin/foo invocation will fork and exec /bin/foo, even if
 	 * /bin/foo is a symlink to busybox.
 	 */
-	search_applet.name = child->argv[0];
+	name = child->argv[0];
 
 #ifdef BB_FEATURE_SH_APPLETS_ALWAYS_WIN
 	/* If you enable BB_FEATURE_SH_APPLETS_ALWAYS_WIN, then
@@ -1412,13 +1412,11 @@ static int pseudo_exec(struct child_prog *child)
 	 * /bin/cat exists on the filesystem and is _not_ busybox.
 	 * Some systems want this, others do not.  Choose wisely.  :-)
 	 */
-	search_applet.name = get_last_path_component(search_applet.name);
+	name = get_last_path_component(name);
 #endif
 
 	/* Do a binary search to find the applet entry given the name. */
-	applet = bsearch(&search_applet, applets, NUM_APPLETS,
-			sizeof(struct BB_applet), applet_name_compare);
-	if (applet != NULL) {
+	if ((applet = find_applet_by_name(name)) != NULL) {
 		int argc_l;
 		char** argv=child->argv;
 		for(argc_l=0;*argv!=NULL; argv++, argc_l++);
diff --git a/utility.c b/utility.c
index 0a0e652..69403c8 100644
--- a/utility.c
+++ b/utility.c
@@ -1691,12 +1691,20 @@ FILE *xfopen(const char *path, const char *mode)
 }
 #endif
 
-int applet_name_compare(const void *x, const void *y)
+static int applet_name_compare(const void *x, const void *y)
 {
-	const struct BB_applet *applet1 = x;
-	const struct BB_applet *applet2 = y;
+	const char *name = x;
+	const struct BB_applet *applet = y;
 
-	return strcmp(applet1->name, applet2->name);
+	return strcmp(name, applet->name);
+}
+
+extern size_t NUM_APPLETS;
+
+struct BB_applet *find_applet_by_name(const char *name)
+{
+	return bsearch(name, applets, NUM_APPLETS, sizeof(struct BB_applet),
+			applet_name_compare);
 }
 
 #if defined BB_DD || defined BB_TAIL