74d73037d0
* MiniDLNA can now pass the DLNA Conformance Test! * Dependence on libdlna has been removed, and the ffmpeg libs are used directly. * Lots of unused code has been cleaned up. * File transfers will now be forked off into a new process, so as not to tie up the server when sending data.
96 lines
1.9 KiB
C
96 lines
1.9 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 <syslog.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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#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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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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syslog(LOG_ERR, "socket(PF_INET, SOCK_DGRAM): %m");
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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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syslog(LOG_ERR, "ioctl(s, SIOCGIFADDR, ...): %m");
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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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syslog(LOG_ERR, "inet_ntop(): %m");
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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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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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syslog(LOG_ERR, "socket(PF_INET, SOCK_DGRAM): %m");
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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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syslog(LOG_ERR, "ioctl(s, SIOCGIFHWADDR, ...): %m");
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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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