#pragma once
#include <sys/types.h>

#define TEL_STRADDRLEN (INET6_ADDRSTRLEN + 1 + 5)

union tel_sa_any {
	struct sockaddr_in v4;
	struct sockaddr_in6 v6;
};

int tel_sa_any_eq(union tel_sa_any *a, union tel_sa_any *b);

enum tel_message {
	MSG_PICKUP,
	MSG_CALL,
	MSG_LIST,
	MSG_SOCKET,
	MSG_OK,
	MSG_ERROR,
	MSG_NONE,
};

int tel_get_addr(char *ip, char *port, struct sockaddr **addr, socklen_t *addr_len);
int tel_straddr(const struct sockaddr *restrict addr, char *restrict buf);

ssize_t tel_write_all(int fd, const void *buf, size_t count);
ssize_t tel_read_all(int fd, void *buf, size_t count);

ssize_t tel_write_u32(int fd, uint32_t n);
ssize_t tel_read_u32(int fd, uint32_t *n);

ssize_t tel_write_u16(int fd, uint16_t n);
ssize_t tel_read_u16(int fd, uint16_t *n);

ssize_t tel_write_fd(int stream, int fd);
ssize_t tel_read_fd(int sock, int *fd);

ssize_t tel_write_sockaddr(int fd, struct sockaddr *addr);
ssize_t tel_read_sockaddr(int fd, union tel_sa_any *addr, socklen_t *addr_len);

ssize_t tel_write_err(int fd, const char *msg);