114 lines
2.2 KiB
C
114 lines
2.2 KiB
C
/* $Id$ */
|
|
/* MiniUPnP project
|
|
* http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
|
|
* (c) 2006 Thomas Bernard
|
|
* This software is subject to the conditions detailed
|
|
* in the LICENCE file provided within the distribution */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <syslog.h>
|
|
#include <unistd.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <net/if.h>
|
|
#include <arpa/inet.h>
|
|
#include <netinet/in.h>
|
|
#include <netdb.h>
|
|
#if defined(sun)
|
|
#include <sys/sockio.h>
|
|
#endif
|
|
|
|
#include "getifaddr.h"
|
|
|
|
int
|
|
getifaddr(const char * ifname, char * buf, int len)
|
|
{
|
|
/* SIOCGIFADDR struct ifreq * */
|
|
int s;
|
|
struct ifreq ifr;
|
|
int ifrlen;
|
|
struct sockaddr_in * addr;
|
|
ifrlen = sizeof(ifr);
|
|
s = socket(PF_INET, SOCK_DGRAM, 0);
|
|
if(s < 0)
|
|
{
|
|
syslog(LOG_ERR, "socket(PF_INET, SOCK_DGRAM): %m");
|
|
return -1;
|
|
}
|
|
strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
|
|
if(ioctl(s, SIOCGIFADDR, &ifr, &ifrlen) < 0)
|
|
{
|
|
syslog(LOG_ERR, "ioctl(s, SIOCGIFADDR, ...): %m");
|
|
close(s);
|
|
return -1;
|
|
}
|
|
addr = (struct sockaddr_in *)&ifr.ifr_addr;
|
|
if(!inet_ntop(AF_INET, &addr->sin_addr, buf, len))
|
|
{
|
|
syslog(LOG_ERR, "inet_ntop(): %m");
|
|
close(s);
|
|
return -1;
|
|
}
|
|
close(s);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
getsysaddr(char * buf, int len)
|
|
{
|
|
char hn[256];
|
|
struct in_addr *addr;
|
|
struct hostent *host;
|
|
|
|
memset(buf, '\0', len);
|
|
gethostname(hn, sizeof(hn));
|
|
host = gethostbyname(hn);
|
|
if( !host )
|
|
return -1;
|
|
addr = (struct in_addr*)host->h_addr;
|
|
strncpy(buf, inet_ntoa(*addr), len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
getifhwaddr(const char * ifname, char * buf, int len)
|
|
{
|
|
/* SIOCGIFADDR struct ifreq * */
|
|
int s;
|
|
struct ifreq ifr;
|
|
int ifrlen;
|
|
unsigned char addr[6];
|
|
char mac_string[4];
|
|
int i;
|
|
ifrlen = sizeof(ifr);
|
|
if( len < 12 )
|
|
{
|
|
return -2;
|
|
}
|
|
s = socket(AF_INET, SOCK_DGRAM, 0);
|
|
if(s < 0)
|
|
{
|
|
syslog(LOG_ERR, "socket(PF_INET, SOCK_DGRAM): %m");
|
|
return -1;
|
|
}
|
|
strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
|
|
if(ioctl(s, SIOCGIFHWADDR, &ifr, &ifrlen) < 0)
|
|
{
|
|
syslog(LOG_ERR, "ioctl(s, SIOCGIFHWADDR, ...): %m");
|
|
close(s);
|
|
return -1;
|
|
}
|
|
close(s);
|
|
|
|
memmove( addr, ifr.ifr_hwaddr.sa_data, 6);
|
|
for (i=0; i<6; ++i) {
|
|
sprintf(mac_string, "%2.2x", addr[i]);
|
|
strcat(buf, mac_string);
|
|
}
|
|
return 0;
|
|
}
|