Implement a small strings applet

include/applets.h

@@ -440,6 +440,9 @@
 #ifdef CONFIG_START_STOP_DAEMON
     APPLET_ODDNAME("start-stop-daemon", start_stop_daemon_main, _BB_DIR_SBIN, _BB_SUID_NEVER, start_stop_daemon)
 #endif
+#ifdef CONFIG_STRINGS
+	APPLET(strings, strings_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER)
+#endif
 #ifdef CONFIG_STTY
 	APPLET(stty, stty_main, _BB_DIR_BIN, _BB_SUID_NEVER)
 #endif

include/usage.h

@@ -1681,6 +1681,15 @@
 	"-s <signal>\t\tsignal to send (default 15)\n"\
 	"-a <pathname>\t\tprogram to start (default <executable>)\n"
 
+#define strings_trivial_usage \
+    "[-afo] [-n length] [file ... ]"
+#define strings_full_usage \
+    "Display printable strings in a binary file." \
+    "\n\nOptions:" \
+    "\n\t-f\tPrecede each string with the name of the file where it was found." \
+    "\n\t-n N\tSpecifies that at least N characters forms a sequence (default 4)" \
+    "\n\t-o\tEach string is preceded by its decimal offset in the file."
+
 #define stty_trivial_usage \
 	"[-a|g] [-F DEVICE] [SETTING]..."
 #define stty_full_usage \