Date: Mon, 21 Aug 2000 18:05:53 +0200
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Sender: halo1 AT zahav DOT net DOT il
To: schultz AT mathematik DOT tu-muenchen DOT de
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CC: djgpp AT delorie DOT com
In-reply-to: <39A12F5B.E165D025@ma.tum.de> (message from Waldemar Schultz on
	Mon, 21 Aug 2000 15:32:11 +0200)
Subject: Re: DJGPP port of WHICH
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> Date: Mon, 21 Aug 2000 15:32:11 +0200
> From: Waldemar Schultz <schultz AT mathematik DOT tu-muenchen DOT de>
> 
> Eli Zaretskii schrieb:
> > 
> > There is a library function which will do all this: it's called
> > __dosexec_find_on_path.
> 
> Could you please show how to use it - I can't find it in the docs.

That's an omission; please feel free to contribute.

__dosexec_find_on_path's usage is like this:

 char *__dosexec_find_on_path(const char *program, char *envp[], char *buf);

You pass a program name in PROGRAM, the environment array in ENVP
(usually the global variable `environ', but you could, for example,
pass NULL, if you don't want it to look along the PATH, but only in
the current directory).  If the function finds the program, with or
without one of the known executable extensions, either in the current
directory or along the PATH as recorded in ENVP[], it puts the full
pathname into BUF and returns a pointer to BUF.  Otherwise, it returns
NULL.