How to get IP of pc using c program

[helpmeforlinux]

hi , if any body have idea that how to get ip address and hardwared address of network card by using c program then please help me . I have writtne source below i don't have much experience of C programming on linux.
#include <ifaddrs.h>
#include <stdio.h>
int main()
{

struct ifaddrs *id;

int val;

val = getifaddrs(&id);

printf("Network Interface Name :- %s\n",id->ifa_name);
printf("Network Address of %s :- %d\n",id->ifa_name,id->ifa_addr);
printf("Network Data :- %d \n",id->ifa_data);
//printf("%s\n",(id->ifa_next)->ifa_name);
//printf("%d \n",(id->ifa_next)->ifa_addr);


printf("Socket Data : -%c\n",id->ifa_addr->sa_data);

return 0;

}


out put:
Network Interface Name :- lo
Network Address of lo :- 165750228
Network Data :- 165751520

[genesus]

is this homework...

naughty boy

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