InternetHost

InternetHost is a class for resolving IPv4 addresses.

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

@safe

class InternetHost {

string name;

string[] aliases;

uint[] addrList;

bool getHostByName(const(char)[] name);

bool getHostByAddr(uint addr);

bool getHostByAddr(const(char)[] addr);

}

Members

Functions

getHostByAddr bool getHostByAddr(uint addr): Resolve IPv4 address number.
getHostByAddr bool getHostByAddr(const(char)[] addr): Same as previous, but addr is an IPv4 address string in the dotted-decimal form a.b.c.d.
getHostByName bool getHostByName(const(char)[] name): Resolve host name.

Variables

name string name;: These members are populated when one of the following functions are called successfully:

Examples

1 InternetHost ih = new InternetHost;
2 
3 ih.getHostByAddr(0x7F_00_00_01);
4 assert(ih.addrList[0] == 0x7F_00_00_01);
5 ih.getHostByAddr("127.0.0.1");
6 assert(ih.addrList[0] == 0x7F_00_00_01);
7 
8 if (!ih.getHostByName("www.digitalmars.com"))
9     return;             // don't fail if not connected to internet
10 
11 assert(ih.addrList.length);
12 InternetAddress ia = new InternetAddress(ih.addrList[0], InternetAddress.PORT_ANY);
13 assert(ih.name == "www.digitalmars.com" || ih.name == "digitalmars.com",
14         ih.name);
15 
16 assert(ih.getHostByAddr(ih.addrList[0]));
17 string getHostNameFromInt = ih.name.dup;
18 
19 assert(ih.getHostByAddr(ia.toAddrString()));
20 string getHostNameFromStr = ih.name.dup;
21 
22 assert(getHostNameFromInt == getHostNameFromStr);

InternetHost

Members

Functions

Variables

Examples

Meta

Source