diff options
| -rw-r--r-- | src/first_network_device.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/first_network_device.c b/src/first_network_device.c index 35cd4ff..16f23e0 100644 --- a/src/first_network_device.c +++ b/src/first_network_device.c @@ -23,6 +23,13 @@ const char *first_eth_interface(const net_type_t type) { addrp = addrp->ifa_next) { if (strncasecmp("lo", addrp->ifa_name, strlen("lo")) == 0) continue; + if (addrp->ifa_addr == NULL) + continue; + // Skip PF_PACKET addresses (MAC addresses), as they are present on any + // ethernet interface. + if (addrp->ifa_addr->sa_family != AF_INET && + addrp->ifa_addr->sa_family != AF_INET6) + continue; // Skip this interface if it is a wireless interface. snprintf(path, sizeof(path), "/sys/class/net/%s/wireless", addrp->ifa_name); const bool is_wireless = (stat(path, &stbuf) == 0); |