#ifndef DCCP_SOCKOPT_AVAILABLE_CCIDS
#define DCCP_SOCKOPT_AVAILABLE_CCIDS 12 /**< List of supported CCIDs. */
#endif
#ifndef DCCP_SOCKOPT_AVAILABLE_CCIDS
#define DCCP_SOCKOPT_AVAILABLE_CCIDS 12 /**< List of supported CCIDs. */
#endif
int send_bin_buffer(int, const char *, size_t);
int send_buffer(int, const char *);
__printf_2_3 int send_va_buffer(int fd, const char *fmt, ...);
int send_bin_buffer(int, const char *, size_t);
int send_buffer(int, const char *);
__printf_2_3 int send_va_buffer(int fd, const char *fmt, ...);
int recv_bin_buffer(int fd, char *buf, size_t size);
int recv_buffer(int fd, char *buf, size_t size);
int recv_bin_buffer(int fd, char *buf, size_t size);
int recv_buffer(int fd, char *buf, size_t size);
-int para_accept(int, void *addr, socklen_t size);
+int para_accept(int fd, fd_set *rfds, void *addr, socklen_t size, int *new_fd);
int recv_cred_buffer(int, char *, size_t);
ssize_t send_cred_buffer(int, char*);
int recv_cred_buffer(int, char *, size_t);
ssize_t send_cred_buffer(int, char*);
-/** Hardcoded maximum number of separate CCID modules compiled into a host */
+/** Estimated worst-case length of a DCCP header including options. */
+#define DCCP_MAX_HEADER 128
+/** Hardcoded maximum number of separate CCID modules compiled into a host. */