Posted by David T. Ashley on 11/19/11 11:56

Hi,

On a Linux platform, I have the need to call a compiled 'C' program from a
PHP script (to do some special authentication), and to keep the information
passed from the PHP script to the compiled 'C' program secret, i.e. the
information should not be passed on the command-line.

The PHP pipe manipulation functions (such as popen) were suggested to me.

Where can I find out more about pipes, specifically:

a)How to use the C library calls to manipulate pipes?

b)The Linux API (below the C library)?

I need enough information to write the compiled 'C' program, to exchange
information with the PHP scripts via pipes, and to handle exception
conditions.

I'm just not sure where to look ... I'm not even sure if the C library is
documented ... and which documentation is appropriate.

Thanks.

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