#import "IPAdress.h"
#include "stdio.h"
#include "stdlib.h"
#include "string.h"
#include "unistd.h"
#import <sys/ioctl.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <sys/sockio.h>
#include <net/if.h>
#include <errno.h>
#include <net/if_dl.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <net/ethernet.h>
#define BUFFERSIZE 4000
char * if_names [ MAXADDRS ] ;
char * ip_names [ MAXADDRS ] ;
char * hw_addrs [ MAXADDRS ] ;
unsigned long ip_addrs [ MAXADDRS ] ;
static int nextAddr = 0 ;
void InitAddresses ()
{
int i ;
for ( i = 0 ; i < MAXADDRS ; ++ i )
{
if_names [ i ] = ip_names [ i ] = hw_addrs [ i ] = NULL ;
ip_addrs [ i ] = 0 ;
}
}
void FreeAddresses ()
{
int i ;
for ( i = 0 ; i < MAXADDRS ; ++ i )
{
if ( if_names [ i ] != 0 ) free ( if_names [ i ]) ;
if ( ip_names [ i ] != 0 ) free ( ip_names [ i ]) ;
if ( hw_addrs [ i ] != 0 ) free ( hw_addrs [ i ]) ;
ip_addrs [ i ] = 0 ;
}
InitAddresses () ;
}
void GetIPAddresses ()
{
int i , len , flags ;
char buffer [ BUFFERSIZE ] , * ptr , lastname [ IFNAMSIZ ] , * cptr ;
struct ifconf ifc ;
struct ifreq * ifr , ifrcopy ;
struct sockaddr_in * sin ;
char temp [ 80 ] ;
int sockfd ;
for ( i = 0 ; i < MAXADDRS ; ++ i )
{
if_names [ i ] = ip_names [ i ] = NULL ;
ip_addrs [ i ] = 0 ;
}
sockfd = socket ( AF_INET , SOCK_DGRAM , 0 ) ;
if ( sockfd < 0 )
{
perror ( " socket failed " ) ;
return ;
}
ifc . ifc_len = BUFFERSIZE ;
ifc . ifc_buf = buffer ;
if ( ioctl ( sockfd , SIOCGIFCONF , & ifc ) < 0 )
{
perror ( " ioctl error " ) ;
return ;
}
lastname [ 0 ] = 0 ;
for ( ptr = buffer ; ptr < buffer + ifc . ifc_len ; )
{
ifr = ( struct ifreq * ) ptr ;
len = MAX((int) sizeof ( struct sockaddr ) , (int)ifr -> ifr_addr . sa_len ) ;
ptr += sizeof ( ifr -> ifr_name ) + len ; // for next one in buffer
if ( ifr -> ifr_addr . sa_family != AF_INET )
{
continue ; // ignore if not desired address family
}
if (( cptr = ( char * ) strchr ( ifr -> ifr_name , ':' )) != NULL )
{
* cptr = 0 ; // replace colon will null
}
if ( strncmp ( lastname , ifr -> ifr_name , IFNAMSIZ ) == 0 )
{
continue ; /* already processed this interface */
}
memcpy ( lastname , ifr -> ifr_name , IFNAMSIZ ) ;
ifrcopy = * ifr ;
ioctl ( sockfd , SIOCGIFFLAGS , & ifrcopy ) ;
flags = ifrcopy . ifr_flags ;
if (( flags & IFF_UP ) == 0 )
{
continue ; // ignore if interface not up
}
if_names [ nextAddr ] = ( char * ) malloc ( strlen ( ifr -> ifr_name ) + 1 ) ;
if ( if_names [ nextAddr ] == NULL )
{
return ;
}
strcpy ( if_names [ nextAddr ] , ifr -> ifr_name ) ;
sin = ( struct sockaddr_in * ) & ifr -> ifr_addr ;
strcpy ( temp , inet_ntoa ( sin -> sin_addr )) ;
ip_names [ nextAddr ] = ( char * ) malloc ( strlen ( temp ) + 1 ) ;
if ( ip_names [ nextAddr ] == NULL )
{
return ;
}
strcpy ( ip_names [ nextAddr ] , temp ) ;
ip_addrs [ nextAddr ] = sin -> sin_addr . s_addr ;
++ nextAddr ;
}
close ( sockfd ) ;
}
void GetHWAddresses ()
{
struct ifconf ifc ;
struct ifreq * ifr ;
int i , sockfd ;
char buffer [ BUFFERSIZE ] , * cp , * cplim ;
char temp [ 80 ] ;
for ( i = 0 ; i < MAXADDRS ; ++ i )
{
hw_addrs [ i ] = NULL ;
}
sockfd = socket ( AF_INET , SOCK_DGRAM , 0 ) ;
if ( sockfd < 0 )
{
perror (