minijail: Restore original value of LD_PRELOAD after fork.
This CL restores the original value of LD_PRELOAD in the process that
calls minijain_run. This prevents any subsequent process, which is not
created by minijail_run, from preloading libminijalpreload.so.
BUG=chromium-os:19732
TEST=Examined the environment of calling process after minijain_run returns.
Change-Id: I578e4c46c72eb549fa59353ab1a25f0160077a03
Reviewed-on: http://gerrit.chromium.org/gerrit/6788
Reviewed-by: Elly Jones <ellyjones@chromium.org>
Tested-by: Ben Chan <benchan@chromium.org>
3 files changed