Routing-Table-Manager/Mac-List/mac-list.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "mac-list.h"
#include "dll.h"
#include "routing-table.h"

extern int get_IP(const char* mac, char* ip);

/*
* Display each row (entry) of a routing table.
*/

void display_mac_list(const dll_t* mac_list) {

	printf("Printing MAC list\n");
	
	dll_node_t* node = mac_list->head->next;
	while (node != mac_list->head) {

		mac_list_entry_t entry = *((mac_list_entry_t*) node->data);
		printf("MAC: %s ", entry.mac);

		char ip[IP_ADDR_LEN];

		if (get_IP(entry.mac, ip) != -1) {
			printf("IP: %s", ip);
		}

		putchar('\n');
		node = node->next;
	}
}

/*
* Look up entry in MAC list by MAC address.
*/

dll_node_t* find_mac(const dll_t* mac_list, const char* mac) {
	
	dll_node_t* node = mac_list->head->next;

	while (node != mac_list->head) {
		mac_list_entry_t entry = *((mac_list_entry_t*)node->data);
		if (!strcmp(entry.mac, mac)) {
			break;
		}

		node = node->next;
	}

	return node;
}