| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | #include "libnetdata/libnetdata.h" |
| 4 | |
| 5 | SOCKET_PEERS socket_peers(int sock_fd) { |
| 6 | SOCKET_PEERS peers; |
| 7 | |
| 8 | if(sock_fd < 0) { |
| 9 | strncpyz(peers.peer.ip, "not connected", sizeof(peers.peer.ip) - 1); |
| 10 | peers.peer.port = 0; |
| 11 | |
| 12 | strncpyz(peers.local.ip, "not connected", sizeof(peers.local.ip) - 1); |
| 13 | peers.local.port = 0; |
| 14 | |
| 15 | return peers; |
| 16 | } |
| 17 | |
| 18 | struct sockaddr_storage addr; |
| 19 | socklen_t addr_len = sizeof(addr); |
| 20 | |
| 21 | // Get peer info |
| 22 | if (getpeername(sock_fd, (struct sockaddr *)&addr, &addr_len) == 0) { |
| 23 | if (addr.ss_family == AF_INET) { // IPv4 |
| 24 | struct sockaddr_in *s = (struct sockaddr_in *)&addr; |
| 25 | inet_ntop(AF_INET, &s->sin_addr, peers.peer.ip, sizeof(peers.peer.ip)); |
| 26 | peers.peer.port = ntohs(s->sin_port); |
| 27 | } |
| 28 | else { // IPv6 |
| 29 | struct sockaddr_in6 *s = (struct sockaddr_in6 *)&addr; |
| 30 | inet_ntop(AF_INET6, &s->sin6_addr, peers.peer.ip, sizeof(peers.peer.ip)); |
| 31 | peers.peer.port = ntohs(s->sin6_port); |
| 32 | } |
| 33 | } |
| 34 | else { |
| 35 | strncpyz(peers.peer.ip, "unknown", sizeof(peers.peer.ip) - 1); |
| 36 | peers.peer.port = 0; |
| 37 | } |
| 38 | |
| 39 | // Get local info |
| 40 | addr_len = sizeof(addr); |
| 41 | if (getsockname(sock_fd, (struct sockaddr *)&addr, &addr_len) == 0) { |
| 42 | if (addr.ss_family == AF_INET) { // IPv4 |
| 43 | struct sockaddr_in *s = (struct sockaddr_in *) &addr; |
| 44 | inet_ntop(AF_INET, &s->sin_addr, peers.local.ip, sizeof(peers.local.ip)); |
| 45 | peers.local.port = ntohs(s->sin_port); |
| 46 | } else { // IPv6 |
| 47 | struct sockaddr_in6 *s = (struct sockaddr_in6 *) &addr; |
| 48 | inet_ntop(AF_INET6, &s->sin6_addr, peers.local.ip, sizeof(peers.local.ip)); |
| 49 | peers.local.port = ntohs(s->sin6_port); |
| 50 | } |
| 51 | } |
| 52 | else { |
| 53 | strncpyz(peers.local.ip, "unknown", sizeof(peers.local.ip) - 1); |
| 54 | peers.local.port = 0; |
| 55 | } |
| 56 | |
| 57 | return peers; |
| 58 | } |