diff options
Diffstat (limited to 'node')
| -rw-r--r-- | node/InetAddress.cpp | 22 | ||||
| -rw-r--r-- | node/InetAddress.hpp | 8 |
2 files changed, 30 insertions, 0 deletions
diff --git a/node/InetAddress.cpp b/node/InetAddress.cpp index 88ab6e49..832acf04 100644 --- a/node/InetAddress.cpp +++ b/node/InetAddress.cpp @@ -196,6 +196,28 @@ InetAddress InetAddress::netmask() const return r; } +InetAddress InetAddress::broadcast() const + throw() +{ + InetAddress r(*this); + switch(_sa.saddr.sa_family) { + case AF_INET: + r._sa.sin.sin_addr.s_addr |= Utils::hton((uint32_t)(0xffffffff >> netmaskBits())); + break; + case AF_INET6: { + unsigned char *bf = (unsigned char *)r._sa.sin6.sin6_addr.s6_addr; + signed int bitsLeft = (signed int)netmaskBits(); + for(unsigned int i=0;i<16;++i) { + if (bitsLeft > 0) { + bf[i] |= (unsigned char)((bitsLeft >= 8) ? 0x00 : (0xff >> bitsLeft)); + bitsLeft -= 8; + } + } + } break; + } + return r; +} + bool InetAddress::sameNetworkAs(const InetAddress &ipnet) const throw() { diff --git a/node/InetAddress.hpp b/node/InetAddress.hpp index 7cfb1abe..0ddb2cd4 100644 --- a/node/InetAddress.hpp +++ b/node/InetAddress.hpp @@ -218,6 +218,14 @@ public: throw(); /** + * Constructs a broadcast address from a network/netmask address + * + * @return Broadcast address (only IP portion is meaningful) + */ + InetAddress broadcast() const + throw(); + + /** * @return True if this is an IPv4 address */ inline bool isV4() const throw() { return (_sa.saddr.sa_family == AF_INET); } |