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#ifndef _TCP_H_
#define _TCP_H_
#include <stdint.h>
#include <netinet/in.h>
#include <sys/select.h>
struct tcp_conf {
int ipproto;
int reuseaddr;
int checksum;
unsigned short port;
union {
struct {
struct in_addr inet_addr;
} ipv4;
struct {
struct in6_addr inet_addr6;
int scope_id;
} ipv6;
} server;
union {
struct in_addr inet_addr;
struct in6_addr inet_addr6;
} client;
int sndbuf;
int rcvbuf;
};
struct tcp_stats {
uint64_t bytes;
uint64_t messages;
uint64_t error;
};
enum tcp_sock_state {
TCP_SERVER_ACCEPTING,
TCP_SERVER_CONNECTED,
TCP_CLIENT_DISCONNECTED,
TCP_CLIENT_CONNECTED
};
struct tcp_sock {
int state; /* enum tcp_sock_state */
int fd;
int client_fd; /* only for the server side */
union {
struct sockaddr_in ipv4;
struct sockaddr_in6 ipv6;
} addr;
socklen_t sockaddr_len;
struct tcp_stats stats;
struct tcp_conf *conf;
};
struct tcp_sock *tcp_server_create(struct tcp_conf *conf);
void tcp_server_destroy(struct tcp_sock *m);
struct tcp_sock *tcp_client_create(struct tcp_conf *conf);
void tcp_client_destroy(struct tcp_sock *m);
ssize_t tcp_send(struct tcp_sock *m, const void *data, int size);
ssize_t tcp_recv(struct tcp_sock *m, void *data, int size);
int tcp_accept(struct tcp_sock *m);
int tcp_get_fd(struct tcp_sock *m);
int tcp_isset(struct tcp_sock *m, fd_set *readfds);
int tcp_accept_isset(struct tcp_sock *m, fd_set *readfds);
int tcp_snprintf_stats(char *buf, size_t buflen, char *ifname,
struct tcp_sock *s, struct tcp_sock *r);
int tcp_snprintf_stats2(char *buf, size_t buflen, const char *ifname,
const char *status, int active,
struct tcp_stats *s, struct tcp_stats *r);
#endif
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