extern int fw_printenv(int argc, char *argv[]);
extern char *fw_getenv (char *name);
extern int fw_setenv (int argc, char *argv[]);
+extern int fw_parse_script(char *fname);
+extern int fw_env_open(void);
+extern int fw_env_write(char *name, char *value);
+extern int fw_env_close(void);
extern unsigned long crc32 (unsigned long, const unsigned char *, unsigned);