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13141446
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2012-10-30T14:44:09.100
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<p>This snippet can help you, it's a more complicated rather I supposed:</p> <pre><code>if (getifaddrs(&ifaddrs) < 0) { my_loge(CRIT, "address detection failed"); return(0); } // zero count = 0; // unset all but CAP_HOST and CAP_ROUTER sysinfo->cap &= (CAP_HOST|CAP_ROUTER); sysinfo->cap_active &= (CAP_HOST|CAP_ROUTER); // reset counter sysinfo->physif_count = 0; // mark all interfaces TAILQ_FOREACH(netif, netifs, entries) { netif->type = NETIF_OLD; } for (ifaddr = ifaddrs; ifaddr != NULL; ifaddr = ifaddr->ifa_next) { // skip interfaces without addresses if (ifaddr->ifa_addr == NULL) { my_log(INFO, "skipping interface %s", ifaddr->ifa_name); continue; } // only handle datalink addresses if (ifaddr->ifa_addr->sa_family != NETIF_AF) continue; // prepare ifr struct memset(&ifr, 0, sizeof(ifr)); strlcpy(ifr.ifr_name, ifaddr->ifa_name, sizeof(ifr.ifr_name)); // skip non-ethernet interfaces memcpy(&saddrll, ifaddr->ifa_addr, sizeof(saddrll)); if (saddrll.sll_hatype != ARPHRD_ETHER) { my_log(INFO, "skipping interface %s", ifaddr->ifa_name); continue; } index = saddrll.sll_ifindex; memcpy(&saddrdl, ifaddr->ifa_addr, sizeof(saddrdl)); if ((saddrdl.sdl_type != IFT_BRIDGE) && (saddrdl.sdl_type != IFT_ETHER)) { if (saddrdl.sdl_type != IFT_ETHER) { my_log(INFO, "skipping interface %s", ifaddr->ifa_name); continue; } index = saddrdl.sdl_index; // check for interfaces that are down enabled = 0; if (ioctl(sockfd, SIOCGIFFLAGS, (caddr_t)&ifr) >= 0) enabled = (ifr.ifr_flags & IFF_UP); // detect interface type type = netif_type(sockfd, index, ifaddr, &ifr); if (type == NETIF_REGULAR) { my_log(INFO, "found ethernet interface %s", ifaddr->ifa_name); sysinfo->physif_count++; } else if (type == NETIF_WIRELESS) { my_log(INFO, "found wireless interface %s", ifaddr->ifa_name); sysinfo->cap |= CAP_WLAN; sysinfo->cap_active |= (enabled == 1) ? CAP_WLAN : 0; } else if (type == NETIF_TAP) { my_log(INFO, "found tun/tap interface %s", ifaddr->ifa_name); } else if (type == NETIF_BONDING) { my_log(INFO, "found bond interface %s", ifaddr->ifa_name); } else if (type == NETIF_BRIDGE) { my_log(INFO, "found bridge interface %s", ifaddr->ifa_name); sysinfo->cap |= CAP_BRIDGE; sysinfo->cap_active |= (enabled == 1) ? CAP_BRIDGE : 0; } else if (type == NETIF_VLAN) { my_log(INFO, "found vlan interface %s", ifaddr->ifa_name); } else if (type == NETIF_INVALID) { my_log(INFO, "skipping interface %s", ifaddr->ifa_name); continue; } </code></pre> <p>Complete file is located here: <a href="https://www.google.it/url?sa=t&rct=j&q=&esrc=s&source=web&cd=5&ved=0CE8QFjAE&url=https://ladvd.googlecode.com/hg-history/default/src/netif.c&ei=EuePUL-fOcqP4gSov4HQBg&usg=AFQjCNFYAVRMLs_rrQF2DfYD5BEWFmTlUg&sig2=lTlohgdq9rvY6m6Wy-ixHA" rel="nofollow">here</a></p>
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1. PObinding with wifi interface in linux
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