944729cf12
* Fix TiVo beacon issue where it would only broadcast on eth0. * Fix a couple gcc4.4 warnings.
130 lines
2.7 KiB
C
130 lines
2.7 KiB
C
/* $Id$ */
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/* MiniUPnP project
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* http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
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* (c) 2006 Thomas Bernard
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* This software is subject to the conditions detailed
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* in the LICENCE file provided within the distribution */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#include <errno.h>
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#if defined(sun)
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#include <sys/sockio.h>
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#endif
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#include "getifaddr.h"
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#include "log.h"
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int
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getifaddr(const char * ifname, char * buf, int len)
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{
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/* SIOCGIFADDR struct ifreq * */
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int s;
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struct ifreq ifr;
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int ifrlen;
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struct sockaddr_in * addr;
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ifrlen = sizeof(ifr);
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s = socket(PF_INET, SOCK_DGRAM, 0);
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if(s < 0)
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{
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DPRINTF(E_ERROR, L_GENERAL, "socket(PF_INET, SOCK_DGRAM): %s\n", strerror(errno));
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return -1;
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}
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strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
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if(ioctl(s, SIOCGIFADDR, &ifr, &ifrlen) < 0)
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{
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DPRINTF(E_ERROR, L_GENERAL, "ioctl(s, SIOCGIFADDR, ...): %s\n", strerror(errno));
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close(s);
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return -1;
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}
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addr = (struct sockaddr_in *)&ifr.ifr_addr;
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if(!inet_ntop(AF_INET, &addr->sin_addr, buf, len))
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{
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DPRINTF(E_ERROR, L_GENERAL, "inet_ntop(): %s\n", strerror(errno));
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close(s);
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return -1;
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}
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close(s);
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return 0;
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}
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int
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getsysaddr(char * buf, int len)
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{
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int i;
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int s = socket(PF_INET, SOCK_STREAM, 0);
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struct sockaddr_in addr;
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struct ifreq ifr;
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int ret = -1;
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for (i=1; i > 0; i++)
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{
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ifr.ifr_ifindex = i;
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if( ioctl(s, SIOCGIFNAME, &ifr) < 0 )
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break;
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if(ioctl(s, SIOCGIFADDR, &ifr, sizeof(struct ifreq)) < 0)
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continue;
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memcpy(&addr, &ifr.ifr_addr, sizeof(addr));
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if(strncmp(inet_ntoa(addr.sin_addr), "127.", 4) == 0)
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continue;
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if(!inet_ntop(AF_INET, &addr.sin_addr, buf, len))
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{
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DPRINTF(E_ERROR, L_GENERAL, "inet_ntop(): %s\n", strerror(errno));
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close(s);
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break;
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}
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ret = 0;
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break;
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}
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close(s);
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return(ret);
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}
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int
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getifhwaddr(const char * ifname, char * buf, int len)
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{
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/* SIOCGIFADDR struct ifreq * */
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int s;
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struct ifreq ifr;
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int ifrlen;
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unsigned char addr[6];
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char mac_string[4];
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int i;
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ifrlen = sizeof(ifr);
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if( len < 12 )
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{
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return -2;
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}
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s = socket(AF_INET, SOCK_DGRAM, 0);
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if(s < 0)
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{
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DPRINTF(E_ERROR, L_GENERAL, "socket(PF_INET, SOCK_DGRAM): %s\n", strerror(errno));
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return -1;
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}
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strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
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if(ioctl(s, SIOCGIFHWADDR, &ifr, &ifrlen) < 0)
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{
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DPRINTF(E_ERROR, L_GENERAL, "ioctl(s, SIOCGIFHWADDR, ...): %s\n", strerror(errno));
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close(s);
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return -1;
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}
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close(s);
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memmove( addr, ifr.ifr_hwaddr.sa_data, 6);
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for (i=0; i<6; ++i) {
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sprintf(mac_string, "%2.2x", addr[i]);
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strcat(buf, mac_string);
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}
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return 0;
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}
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