-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 create_pf_socket(const char *, struct sockaddr_un *, int mod);
+int send_va_buffer(int, const char *, ...);
+int recv_buffer(int fd, char *buf, size_t size);
+int recv_bin_buffer(int fd, char *buf, size_t size);
+int para_accept(int, void *addr, socklen_t size);
+int create_pf_socket(const char *name, struct sockaddr_un *unix_addr,
+ mode_t mode);