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Code Issues Releases Wiki Activity

Add IPv4Address::from_prefix_length

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This commit is contained in:
Matias Fontanini
2016-03-19 16:26:00 -07:00
parent 3773443fc8
commit a70ce10bed
3 changed files with 14 additions and 6 deletions
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7
src/address_range.cpp
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@@ -39,15 +39,12 @@ IPv4Range operator/(const IPv4Address& addr, int mask) {
if (mask > 32) {
throw logic_error("Prefix length cannot exceed 32");
}
return IPv4Range::from_mask(
addr,
IPv4Address(Endian::host_to_be(0xffffffff << (32 - mask)))
);
return IPv4Range::from_mask(addr, IPv4Address::from_prefix_length(mask));
}
IPv6Range operator/(const IPv6Address& addr, int mask) {
if (mask > 128) {
throw std::logic_error("Prefix length cannot exceed 128");
throw logic_error("Prefix length cannot exceed 128");
}
return IPv6Range::from_mask(addr, IPv6Address::from_prefix_length(mask));
}

6
src/ip_address.cpp
View File

@@ -54,7 +54,11 @@ const AddressRange<IPv4Address> private_ranges[] = {
const AddressRange<IPv4Address> loopback_range = IPv4Address("127.0.0.0") / 8;
const AddressRange<IPv4Address> multicast_range = IPv4Address("224.0.0.0") / 4;
IPv4Address IPv4Address::from_prefix_length(uint32_t prefix_length) {
return IPv4Address(Endian::host_to_be(0xffffffff << (32 - prefix_length)));
}
IPv4Address::IPv4Address(uint32_t ip)
: ip_addr_(Endian::be_to_host(ip)) {