[m-rev.] Posix environment

[Fergus Henderson]

On 22-May-2002, Michael Day <mikeday at bigpond.net.au> wrote:
> One question though, should it copy the
> strings from the environment rather than returning them directly?

Yes, IMHO it should.  Otherwise they might alias with non-const strings
that can be modified by C code.  The Posix standard allows programs to
add strings to environ and modify them afterwards:

	| int putenv(char *string);
	| ...
	| the string pointed to by `string' shall become part of the
	| environment, so altering the string shall change the environment. 

-- 
Fergus Henderson <fjh at cs.mu.oz.au>  |  "I have always known that the pursuit
The University of Melbourne         |  of excellence is a lethal habit"
WWW: <http://www.cs.mu.oz.au/~fjh>  |     -- the last words of T. S. Garp.
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