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Unix side of local interface address awareness for GitHub issue #180.

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This commit is contained in:
Adam Ierymenko 2015-07-06 16:32:34 -07:00
parent 235f4762b7
commit a87cd2d094
3 changed files with 76 additions and 2 deletions
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8
node/InetAddress.cpp
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@ -91,7 +91,13 @@ InetAddress::IpScope InetAddress::ipScope() const
const unsigned char *ip = reinterpret_cast<const unsigned char *>(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr);
if ((ip[0] & 0xf0) == 0xf0) {
if (ip[0] == 0xff) return IP_SCOPE_MULTICAST; // ff00::/8
if ((ip[0] == 0xfe)&&((ip[1] & 0xc0) == 0x80)) return IP_SCOPE_LINK_LOCAL; // fe80::/10
if ((ip[0] == 0xfe)&&((ip[1] & 0xc0) == 0x80)) {
unsigned int k = 2;
while ((!ip[k])&&(k < 15)) ++k;
if ((k == 15)&&(ip[15] == 0x01))
return IP_SCOPE_LOOPBACK; // fe80::1/128
else return IP_SCOPE_LINK_LOCAL; // fe80::/10
}
if ((ip[0] & 0xfe) == 0xfc) return IP_SCOPE_PRIVATE; // fc00::/7
}
unsigned int k = 0;