bool GetIPInfo()
{
#ifndef __WIN32__
struct ifaddrs* ifaddrp = NULL;
if (0 != getifaddrs(&ifaddrp))
return false;
for( struct ifaddrs* ifap=ifaddrp ; NULL != ifap ; ifap = ifap->ifa_next )
{
struct sockaddr_in * sai = (struct sockaddr_in *) ifap->ifa_addr;
if (!ifap->ifa_netmask || // ignore if no netmask
sai->sin_addr.s_addr == 0 || // ignore if address is 0.0.0.0
sai->sin_addr.s_addr == 16777343) // ignore if address is 127.0.0.1
continue;
#else
WSADATA wsa_data;
char host_name[100];
HOSTENT* host_ent;
int n = 0;
if (WSAStartup(0x0101, &wsa_data)) {
return false;
}
gethostname(host_name, sizeof(host_name));
host_ent = gethostbyname(host_name);
if (host_ent == NULL) {
return false;
}
for ( ; host_ent->h_addr_list[n] != NULL; ++n) {
struct sockaddr_in addr;
struct sockaddr_in* sai = &addr;
memcpy(&sai->sin_addr.s_addr, host_ent->h_addr_list[n], host_ent->h_length);
#endif
char * netip = inet_ntoa(sai->sin_addr);
if (!strncmp(netip, "111.111", 7)) // ignore if address is starting with 192
{
strlcpy(g_szInternalIP, netip, sizeof(g_szInternalIP));
#ifndef __WIN32__
fprintf(stderr, "INTERNAL_IP: %s interface %s\n", netip, ifap->ifa_name);
#else
fprintf(stderr, "INTERNAL_IP: %s\n", netip);
#endif
}
else if (!strncmp(netip, "10.", 3))
{
strlcpy(g_szInternalIP, netip, sizeof(g_szInternalIP));
#ifndef __WIN32__
fprintf(stderr, "INTERNAL_IP: %s interface %s\n", netip, ifap->ifa_name);
#else
fprintf(stderr, "INTERNAL_IP: %s\n", netip);
#endif
}
else if (g_szPublicIP[0] == '0')
{
strlcpy(g_szPublicIP, netip, sizeof(g_szPublicIP));
#ifndef __WIN32__
fprintf(stderr, "PUBLIC_IP: %s interface %s\n", netip, ifap->ifa_name);
#else
fprintf(stderr, "PUBLIC_IP: %s\n", netip);
#endif
}
}
#ifndef __WIN32__
freeifaddrs( ifaddrp );
#else
WSACleanup();
#endif
if (g_szPublicIP[0] != '0')
return true;
else
return false;
}
