int send_va_buffer(int, char *, ...);
int recv_buffer(int, char *, ssize_t);
int recv_bin_buffer(int, char *, ssize_t);
-int para_accept(int, void *addr, size_t size);
+int para_accept(int, void *addr, socklen_t size);
int create_pf_socket(const char *, struct sockaddr_un *, int mod);
int init_unix_addr(struct sockaddr_un *, const char *);
int recv_cred_buffer(int, char *, size_t, struct ucred *);