add: get version api

src/config.c

@@ -39,6 +39,11 @@ void set_enable_crypt(int enable)
     printf("set enable_crypt = %d\n", enable);
 }
 
+void get_version(char* version)
+{
+    memcpy(version, VERSION, strlen(VERSION));
+}
+
 int parse_config(char *conf_file_name)
 {
 //    char conf_file_name[256] = "/etc/gdut-drcom.conf";

src/config.h

@@ -20,5 +20,6 @@ int parse_config(char * conf_file_name);
 void set_remote_ip(char *ip, int len);
 void set_keep_alive1_flag(char *flag, int len);
 void set_enable_crypt(int enable);
+void get_version(char * version);
 
 #endif //__CONFIG_H__