diff options
Diffstat (limited to 'node/InetAddress.cpp')
| -rw-r--r-- | node/InetAddress.cpp | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/node/InetAddress.cpp b/node/InetAddress.cpp index 62bb8145..0fbb2d68 100644 --- a/node/InetAddress.cpp +++ b/node/InetAddress.cpp @@ -287,6 +287,30 @@ InetAddress InetAddress::network() const return r; } +#ifdef ZT_SDK + bool InetAddress::isEqualPrefix(const InetAddress &addr) const + { + if (addr.ss_family == ss_family) { + switch(ss_family) { + case AF_INET6: { + const InetAddress mask(netmask()); + InetAddress addr_mask(addr.netmask()); + const uint8_t *n = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(&addr_mask)->sin6_addr.s6_addr); + const uint8_t *m = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(&mask)->sin6_addr.s6_addr); + const uint8_t *a = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(&addr)->sin6_addr.s6_addr); + const uint8_t *b = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr); + for(unsigned int i=0;i<16;++i) { + if ((a[i] & m[i]) != (b[i] & n[i])) + return false; + } + return true; + } + } + } + return false; + } +#endif + bool InetAddress::containsAddress(const InetAddress &addr) const { if (addr.ss_family == ss_family) { |