#ifndef _TCP_HELPERS_H
#define _TCP_HELPERS_H

#ifdef __cpluscplus
extern "C"
{
#endif

#include <arpa/inet.h>
#define __FAVOR_BSD 1
#include <netinet/tcp.h>

static inline uint16_t tcp_hdr_get_sport(const struct tcphdr *hdr)
{
    return ntohs(hdr->th_sport);
}

static inline uint16_t tcp_hdr_get_dport(const struct tcphdr *hdr)
{
    return ntohs(hdr->th_dport);
}

static inline uint32_t tcp_hdr_get_seq(const struct tcphdr *hdr)
{
    return ntohl(hdr->th_seq);
}

static inline uint32_t tcp_hdr_get_ack(const struct tcphdr *hdr)
{
    return ntohl(hdr->th_ack);
}

static inline uint8_t tcp_hdr_get_flags(const struct tcphdr *hdr)
{
    return hdr->th_flags;
}

static inline uint16_t tcp_hdr_get_checksum(const struct tcphdr *hdr)
{
    return hdr->th_sum;
}

static inline bool tcp_hdr_has_flag_urg(const struct tcphdr *hdr)
{
    return hdr->th_flags & TH_URG;
}

static inline bool tcp_hdr_has_flag_ack(const struct tcphdr *hdr)
{
    return hdr->th_flags & TH_ACK;
}

static inline bool tcp_hdr_has_flag_psh(const struct tcphdr *hdr)
{
    return hdr->th_flags & TH_PUSH;
}

static inline bool tcp_hdr_has_flag_rst(const struct tcphdr *hdr)
{
    return hdr->th_flags & TH_RST;
}

static inline bool tcp_hdr_has_flag_syn(const struct tcphdr *hdr)
{
    return hdr->th_flags & TH_SYN;
}

static inline bool tcp_hdr_has_flag_fin(const struct tcphdr *hdr)
{
    return hdr->th_flags & TH_FIN;
}

#ifdef __cpluscplus
}
#endif

#endif