#ifndef ICMP_RECV_H
#define ICMP_RECV_H

#include <netinet/in.h>
#include <sys/types.h>

#include "icmp.h"
#include "internal/icmp_internal.h"

/* Validation helpers */
int recv_validate_params(struct icmp_handle *h, icmp_callback_t cb);
int recv_handle_receive_error(struct icmp_handle *h);

/* Core receive functions */
ssize_t recv_receive_packet(int fd, void *buffer, size_t buffer_len,
							struct sockaddr_in *from);

int recv_parse_packet(const void *buffer, size_t buffer_len, uint8_t *type,
		uint8_t *code, uint8_t *ttl, struct in_addr *src_addr,
		const void **payload, size_t *payload_len, size_t *ip_hdr_len);

/* Reply building */
void recv_build_reply(icmp_reply_t *reply, uint8_t type, uint8_t code,
		uint8_t ttl, struct in_addr src_addr, const void *payload,
		size_t payload_len, const void *buffer, size_t ip_hdr_len);

/* Process single packet */
void recv_process_single_packet(uint8_t *buffer, ssize_t len,
		icmp_callback_t cb, void *userdata);

#endif