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hashCode() for InetAddress

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This commit is contained in:
Adam Ierymenko 2016-09-28 13:45:25 -07:00
parent e1fbf7b34c
commit 01129d02b3
1 changed files with 19 additions and 0 deletions
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19
node/InetAddress.hpp
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@ -414,6 +414,25 @@ struct InetAddress : public sockaddr_storage
return false;
}
inline unsigned long hashCode() const
{
if (ss_family == AF_INET) {
return ((unsigned long)reinterpret_cast<const struct sockaddr_in *>(this)->sin_addr.s_addr + (unsigned long)reinterpret_cast<const struct sockaddr_in *>(this)->sin_port);
} else if (ss_family == AF_INET6) {
unsigned long tmp = reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_port;
const uint8_t *a = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr);
for(long i=0;i<16;++i)
reinterpret_cast<uint8_t *>(&tmp)[i % sizeof(tmp)] ^= a[i];
return tmp;
} else {
unsigned long tmp = reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_port;
const uint8_t *a = reinterpret_cast<const uint8_t *>(this);
for(long i=0;i<sizeof(InetAddress);++i)
reinterpret_cast<uint8_t *>(&tmp)[i % sizeof(tmp)] ^= a[i];
return tmp;
}
}
/**
* Set to null/zero
*/