| 27 | namespace dmSocket |
| 28 | { |
| 29 | void GetIfAddresses(IfAddr* addresses, uint32_t addresses_count, uint32_t* count) |
| 30 | { |
| 31 | *count = 0; |
| 32 | |
| 33 | struct ifreq* ifr; |
| 34 | struct ifconf ifc; |
| 35 | char buf[2048]; |
| 36 | int s = socket(AF_INET, SOCK_DGRAM, 0); |
| 37 | if (s < 0) |
| 38 | { |
| 39 | dmLogError("Unable to create socket for GetIfAddresses"); |
| 40 | return; |
| 41 | } |
| 42 | |
| 43 | memset(&ifc, 0, sizeof(ifc)); |
| 44 | ifr = (ifreq*) buf; |
| 45 | ifc.ifc_ifcu.ifcu_req = ifr; |
| 46 | ifc.ifc_len = sizeof(buf); |
| 47 | if (ioctl(s, SIOCGIFCONF, &ifc) < 0) |
| 48 | { |
| 49 | close(s); |
| 50 | return; |
| 51 | } |
| 52 | |
| 53 | int numif = ifc.ifc_len / sizeof(struct ifreq); |
| 54 | for (int i = 0; i < numif && *count < addresses_count; i++) |
| 55 | { |
| 56 | struct ifreq* r = &ifr[i]; |
| 57 | |
| 58 | if (strcmp(r->ifr_name, "lo") == 0) |
| 59 | { |
| 60 | continue; |
| 61 | } |
| 62 | |
| 63 | IfAddr* a = &addresses[*count]; |
| 64 | memset(a, 0, sizeof(*a)); |
| 65 | |
| 66 | dmStrlCpy(a->m_Name, r->ifr_name, sizeof(a->m_Name)); |
| 67 | |
| 68 | if (ioctl(s, SIOCGIFADDR, r) < 0) |
| 69 | { |
| 70 | continue; |
| 71 | } |
| 72 | |
| 73 | if (r->ifr_addr.sa_family == AF_INET) |
| 74 | { |
| 75 | sockaddr_in* ia = (sockaddr_in*) &r->ifr_ifru.ifru_addr; |
| 76 | a->m_Flags |= FLAGS_INET; |
| 77 | a->m_Address.m_family = DOMAIN_IPV4; |
| 78 | *IPv4(&a->m_Address) = ia->sin_addr.s_addr; |
| 79 | } |
| 80 | else if (r->ifr_addr.sa_family == AF_INET6) |
| 81 | { |
| 82 | sockaddr_in6* ia = (sockaddr_in6*) &r->ifr_ifru.ifru_addr; |
| 83 | a->m_Flags |= FLAGS_INET; |
| 84 | a->m_Address.m_family = DOMAIN_IPV6; |
| 85 | memcpy(IPv6(&a->m_Address), &ia->sin6_addr, sizeof(struct in6_addr)); |
| 86 | } |