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Class std.socket.InternetHost

InternetHost is a class for resolving IPv4 addresses.

class InternetHost ;

Consider using getAddress, parseAddress and Address methods instead of using this class directly.

Fields

NameTypeDescription
addrList uint[]These members are populated when one of the following functions are called successfully:
aliases string[]These members are populated when one of the following functions are called successfully:
name stringThese members are populated when one of the following functions are called successfully:

Methods

NameDescription
getHostByAddr Resolve IPv4 address number.
getHostByAddr Same as previous, but addr is an IPv4 address string in the dotted-decimal form a.b.c.d.
getHostByName Resolve host name.
factory Create instance of class specified by the fully qualified name classname. The class must either have no constructors or have a default constructor.
opCmp Compare with another Object obj.
opEquals Test whether this is equal to o. The default implementation only compares by identity (using the is operator). Generally, overrides for opEquals should attempt to compare objects by their contents.
toHash Compute hash function for Object.
toString Convert Object to a human readable string.

Example

InternetHost ih = new InternetHost;

ih.getHostByAddr(0x7F_00_00_01);
writeln(ih.addrList[0]); // 0x7F_00_00_01
ih.getHostByAddr("127.0.0.1");
writeln(ih.addrList[0]); // 0x7F_00_00_01

if (!ih.getHostByName("www.digitalmars.com"))
    return;             // don't fail if not connected to internet

assert(ih.addrList.length);
InternetAddress ia = new InternetAddress(ih.addrList[0], InternetAddress.PORT_ANY);
assert(ih.name == "www.digitalmars.com" || ih.name == "digitalmars.com",
        ih.name);

assert(ih.getHostByAddr(ih.addrList[0]));
string getHostNameFromInt = ih.name.dup;

assert(ih.getHostByAddr(ia.toAddrString()));
string getHostNameFromStr = ih.name.dup;

writeln(getHostNameFromInt); // getHostNameFromStr

Authors

Christopher E. Miller, David Nadlinger, Vladimir Panteleev

License

Boost License 1.0.