Path: utzoo!utgpu!news-server.csri.toronto.edu!torsqnt!tmsoft!robohack!druid!darcy
From: darcy@druid.uucp (D'Arcy J.M. Cain)
Newsgroups: comp.lang.c
Subject: Re: I/O redirection
Message-ID: <1990Apr7.034117.2070@druid.uucp>
Date: 7 Apr 90 03:41:17 GMT
References: <1990Apr2.144841.12905@mentor.com>
Reply-To: darcy@druid.UUCP (D'Arcy J.M. Cain)
Organization: D'Arcy Cain Consulting, West Hill, Ontario
Lines: 21

In article <1990Apr2.144841.12905@mentor.com> swhitchurch@mentor.com (Steve Whitchurch) writes:
>Hi;
>
>I have a question: I need to change or redirect "stdout" from inside
>a C function. What I want to do is capture the output of a printf and
>put the results into a file. so it would go something like this:
>
> redirect_stdout ();
> call_function_that_prints_to_stdout ();
> reset_stdout ();
>
> Is there a way in C that I can do this ?????????? Change where stdout
> goes ???????

It's even easier than you think.  Use fprintf (see printf(3S))

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