To: djgpp-workers AT delorie DOT com
Subject: Re: Support for program specific environment files
References: <20emmho6of DOT fsf_-_ AT Sky DOT inp DOT nsk DOT su>
From: Michael Bukin <M DOT A DOT Bukin AT inp DOT nsk DOT su>
Date: 25 Mar 1999 19:39:56 +0600
In-Reply-To: Michael Bukin's message of "22 Mar 1999 22:00:48 +0600"
Message-ID: <20bthhg02b.fsf@Sky.inp.nsk.su>
Lines: 18
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Reply-To: djgpp-workers AT delorie DOT com

In src/libc/crt0/c1loadef.c memory for new env. variable is allocated
with alloca with requested size equal to size of djgpp.env.  For small
djgpp.env file or for large values in environment variables some
entries in djgpp.env may give problems, e.g.

VAR=%OTHERVAR% something

may expand to size larger than djgpp.env length.

It is hardly a problem for default djgpp.env (it is rather large), but
it might happen for edited djgpp.env and for program specific
environment files.

The problem can be shifted a little by requesting larger temporary
buffer, for example by adding fixed amount to its size.

-- 
Michael Bukin