| Tag Link | [Net->Connect] | Category | Networking |
|---|---|---|---|
| Type | Member | Source Available | Yes |
| Support | Preferred | Version | 7.0 |
| Change | Unchanged | Data Source | Any |
| Output Type | Integer | Security | None |
| Implementation | LCAPI | Sets | Lasso 8.5, Lasso 8.0, Lasso 7.0 |
[Net->Connect] is used to establish an outgoing TCP connection with a remote host on a specific port. Once a connection is established data can be read from the connection using [Net->Read] or written to the connection using [Net->Write].
[Net->Connect] returns [Net_ConnectOK] if the connection was made successfully or [Net_ConnectInProgress] if the object already has an open connection.
<?LassoScript
Variable: 'Connection' = (Net);
$Connection->(Connect: 'www.example.com', 80);
Variable: 'Data' = $Connection->(Read: 32768);
...
$Connection->Close;
?>
| Required Parameters | |
|---|---|
| Host Name | The DNS host name or IP address of the remote host. |
| Port | The port number to connect to. |
To connect to a remote server using TCP:
Use the [Net] type and its member tags to establish a TCP connection. The following example opens a blocking TCP connection to the Web server running on an example server and fetches the root document. The result will be an HTML page.
[Variable: 'myConnection' = (Net)]
[$myConnection->(SetBlocking: True)]
[Var: 'Result' = $myConnection->(Connect: 'www.example.com', 80)]
[Fail_If: $Result != Net_ConnectOK, (-1), 'TCP Error']
[Variable: 'Result' = $myConnection->(Write: 'GET / HTTP/1.0\r\n\r\n')]
[Variable: 'Output' = $myConnection->(Read: 32768)]
[$myConnection->(Close)]
[Output: $Output]
<html><head><title>HTML Document</title></head>>body> ...