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add checks for LAN IPs to prevent q3ded from trying to authenticate

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private IPs
This commit is contained in:
Ludwig Nussel 2005-08-28 12:33:24 +00:00
parent 4a955b42e2
commit a2249d087e
1 changed files with 13 additions and 0 deletions
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13
code/unix/unix_net.c
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@ -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