Difference between revisions of "FSOCKOPEN()"
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==Purpose== | ==Purpose== | ||
Function to open a TCP/IP socket | Function to open a TCP/IP socket | ||
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==Description== | ==Description== | ||
| − | The FSOCKOPEN() function opens a TCP/IP socket. It returns a numeric pointer when the socket is opened successfully, or a -1 if unsuccessful. The <expC> is the | + | The FSOCKOPEN() function opens a TCP/IP socket. It returns a numeric pointer when the socket is opened successfully, or a -1 if unsuccessful. The <expC> is the hostname of the server, <expN> is the port number. Since the pointer is required to identify an open socket to other functions, always assign the return value to a memory variable. |
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==Example== | ==Example== | ||
<code lang="recital"> | <code lang="recital"> | ||
| − | + | fp=fsockopen("www.server.com",80) | |
| + | if fp > 0 | ||
| + | ... | ||
| + | endif | ||
| + | fclose(fp) | ||
</code> | </code> | ||
Latest revision as of 16:05, 1 December 2009
Purpose
Function to open a TCP/IP socket
Syntax
FSOCKOPEN(<expC>, <expN>)
See Also
FCLOSE(), FFLUSH(), FGETS(), FPUTS(), FREAD()
Description
The FSOCKOPEN() function opens a TCP/IP socket. It returns a numeric pointer when the socket is opened successfully, or a -1 if unsuccessful. The <expC> is the hostname of the server, <expN> is the port number. Since the pointer is required to identify an open socket to other functions, always assign the return value to a memory variable.
The FCLOSE() function is used to close a socket which has been opened with FSOCKOPEN().
Example
fp=fsockopen("www.server.com",80) if fp > 0 ... endif fclose(fp)
Products
Recital, Recital Server
