The Be Book - Classes And Methods - The Network Kit
| Class Overview |
BNetAddress(const char* hostname = NULL,
unsigned short port = 0);
BNetAddress(const struct sockaddr_in& sa);
BNetAddress(in_addr addr,
int port = 0);
BNetAddress(uint32 addr,
int port = 0);
BNetAddress(const char* hostname,
const char* protocol,
const char* service);
BNetAddress(BNetAddress& from);
BNetAddress(BMessage* archive);
Sets up the BNetAddress object to refer to the specified address. The
address can be specified in a number of ways:
By hostname and
port number. For example, to connect to the
HTTP
port at www.be.com, you would specify "www.be.com" as the
hostname, and 80 for the
port number.
By sockaddr_in structure. This structure contains the network family, port number, and IP address that make up the address.
By IP address and port number. The IP address can be specified either
using an in_addr, or by using a uint32. The IP address must be
specified in network byte order. See the htonl() function.
By hostname,
protocol, and service
name. This causes the port to be looked up in the
/etc/services file by matching the protocol
(typically "tcp" or "udp") and service name (such as
"http" or "ftp") against the entries in the file. See
getservbyname() for details on the format of this
file.
By copying an existing BNetAddress.
By unflattening an archived BNetAddress
from a
BMessage.
After creating your BNetAddress, you must call
InitCheck()
to ensure that no errors occurred during setup. You can change the address later by
calling
SetTo().
status_t InitCheck() const;Returns a status_t indicating whether or not the object was successfully instantiated.
| Return Code | Description |
|---|---|
| The |
| An error occurred during construction. |
status_t GetAddr(const char* hostname = NULL,
unsigned short* port = NULL) const;
status_t GetAddr(const struct sockaddr_in& sa) const;
status_t GetAddr(in_addr& addr,
unsigned short* port = NULL) const;
Returns the address represented by the BNetAddress
object in the format indicated by the form of the function used.
If you don't care about the hostname (in the first form), you can specify
NULL for the hostname argument;
if you don't care about the port number, you can specify
NULL for the port argument.
| Return Code | Description |
|---|---|
| The address was returned successfully. |
| An error occurred fetching the address information. |
status_t SetTo(const char* hostname,
const char* protocol,
const char* service);
status_t SetTo(const char* hostname = NULL,
unsigned short port = 0);
status_t SetTo(const struct sockaddr_in& sa);
status_t SetTo(in_addr addr,
int port = 0);
status_t SetTo(uint32 addr = INADDR_ANY,
int port = 0);
Sets the address represented by the BNetAddress object in the format
indicated by the form of the function used. These formats are described
in the discussion of the constructor.
| Return Code | Description |
|---|---|
| The address was set successfully. |
| An error occurred setting the address information. |
