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From: silver@xrtll.uucp (Hi Ho Silver)
Newsgroups: comp.sys.ibm.pc.programmer,alt.msdos.programmer
Subject: Re: Redirecting to/from spawnxx()ed program?
Keywords: redirect stdin/stdout
Message-ID: <1990Jul7.145847.10261@xrtll.uucp>
Date: 7 Jul 90 14:58:47 GMT
References: <49978@iuvax.cs.indiana.edu>
Reply-To: silver@xrtll.UUCP (Hi Ho Silver)
Organization: Not around here, pal!
Lines: 16

In article <49978@iuvax.cs.indiana.edu> bobmon@iuvax.cs.indiana.edu (RAMontante) writes:
$I believe that spawn...() doesn't start a command shell, which is what you
$need to do redirection.  There is another call, system() I think, which
$does start a command shell and feeds the arguments to it.  You could use
$that.  The arguments should be essentially a command line that is to be
$fed to command.com, but I don't have my manuals at hand to check any of this.

   That's one way, yes; do something like system ("command_name < file_name");
The other way is to do the redirection yourself.  I'm not sure of the exact
procedure to do this, but if you look up the functions dup(), dup2() and
freopen(), somewhere you should find the information you need.
-- 
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