From f9f317367195d4b10bbdf9c12e5357e58c903f12 Mon Sep 17 00:00:00 2001 From: ludwig Date: Sun, 28 Aug 2005 12:33:24 +0000 Subject: add checks for LAN IPs to prevent q3ded from trying to authenticate private IPs git-svn-id: svn://svn.icculus.org/quake3/trunk@16 edf5b092-35ff-0310-97b2-ce42778d08ea --- code/unix/unix_net.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'code') diff --git a/code/unix/unix_net.c b/code/unix/unix_net.c index 7130ddf..a7412c0 100755 --- a/code/unix/unix_net.c +++ b/code/unix/unix_net.c @@ -273,6 +273,19 @@ qboolean Sys_IsLANAddress (netadr_t adr) { return qfalse; } + // RFC1918: + // 10.0.0.0 - 10.255.255.255 (10/8 prefix) + // 172.16.0.0 - 172.31.255.255 (172.16/12 prefix) + // 192.168.0.0 - 192.168.255.255 (192.168/16 prefix) + if(adr.ip[0] == 10) + return qtrue; + if(adr.ip[0] == 172 && adr.ip[1]&0xf0 == 16) + return qtrue; + if(adr.ip[0] == 192 && adr.ip[1] == 168) + return qtrue; + + // the checks below are bogus, aren't they? -- ln + // choose which comparison to use based on the class of the address being tested // any local adresses of a different class than the address being tested will fail based on the first byte -- cgit v1.2.3