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Top Forums UNIX for Advanced & Expert Users Named pipes using MKS Toolkit Post 302433115 by ArndW on Monday 28th of June 2010 02:37:54 PM
Old 06-28-2010
Named pipes using MKS Toolkit

I'm not sure whether or not this question really belongs in this forum and will accept rebuke should I have mistakenly put it in the wrong place (hopefully the rebuke will be accompanied by an answer, though)

I wish to implement named pipe communication between two process using MKS Toolkit. I have used the "mkfifo" command to create the named pipe in the appropriate directory, but I cannot find a way, from the command line, to write to the pipe without destroying it. If I do something like "ls > mypipe.fifo" then the pipe is destroyed and the mypipe.fifo is converted to a normal text file.

I found a reference to using the MKS call to popen() in order to open a pipe, but am not able (allowed) to write and install a user-written c program on the MKS installation. Thus I am looking for some method of writing to the named pipe using a command line call and haven't found anything in the documentation or by searching the web.
 

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FAXANSWER(8)						      System Manager's Manual						      FAXANSWER(8)

NAME
faxanswer - tell a HylaFAX server to answer the telephone SYNOPSIS
/usr/sbin/faxanswer [ -q queue-dir ] [ -h how ] modem DESCRIPTION
faxanswer sends a message to the HylaFAX faxgetty(8) process servicing modem telling it to answer the telephone. This is useful, for exam- ple, when a modem is used on a shared phone line and the server is configured to not normally answer the phone. The specified modem can either be the name (typically the last component of the terminal port the modem is attached to), or the full name of the associated FIFO named pipe file, e.g. ``FIFO.ttym2''. OPTIONS
-q dir Use a spooling area other than /var/spool/hylafax. -h Specify exactly how the phone should be answered. By default, the server process is instructed to answer the phone and accept any kind of call (voice, data, fax). Discrimination of the type of call is dependent on a modem's adaptive-answer support. The -h option can be used to force the server to answer the phone for particular type of call: one of fax, data, voice, any, extern (to force faxgetty to invoke an external application to to handle the call), or dialX (where X is a dialstring to dial before initiating a fax reception). If using dialX, the specified dialstring will likely need to end with a semicolon (``;''). FILES
/var/spool/hylafax default spooling area /var/spool/hylafax/FIFO fifo for contacting faxq Consult hylafax-server(5) for a complete discussion of the structure and content of the spooling area. SEE ALSO
hylafax-server(5), faxgetty(8) May 23, 1996 FAXANSWER(8)
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