From: Lukas Fleischer <cgit@cryptocrack.de>
Date: Wed, 14 Sep 2011 09:52:43 +0000 (+0200)
Subject: shared.c: Only setenv() if value is non-null
X-Git-Url: https://gitweb.ps.run/ps-cgit/commitdiff_plain/d96d2c98ebc4c2d3765f5b35c4142e0e828a421b?hp=d96d2c98ebc4c2d3765f5b35c4142e0e828a421b

shared.c: Only setenv() if value is non-null

Some setenv() implementations (e.g. the one in OpenBSD's stdlib)
segfault if we pass a NULL value. Only set environment variables if the
corresponding settings are defined to avoid this.

Note that this is a minor behaviour change as environment variables were
supposed to be set to an empty string if a setting was undefined. Given
that this feature isn't part of any official release yet, there's no
need to worry about backwards compatibility, really. Change the
documentation accordingly.

Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
---