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Avoid problems where PW prompt in enter_chroot.sh would block other terminals.

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Change-Id: Ibd32a4be12e88d183dd0acbcb156582ad946c92f

BUG=chromium-os:11602
TEST=Added a 'sudo -K' as the first line of teardown_env to simulate sudo timeout, then performed steps in bug report (without 15 minute wait).

Review URL: http://codereview.chromium.org/6250116
This commit is contained in:
Doug Anderson 2011-02-02 15:47:00 -08:00
parent 79088f496e
commit a8d9cc18b0
1 changed files with 8 additions and 0 deletions
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8
enter_chroot.sh
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@ -125,6 +125,10 @@ sudo chmod 0777 "$FLAGS_chroot/var/lock"
LOCKFILE="$FLAGS_chroot/var/lock/enter_chroot"
function setup_env {
# Validate sudo timestamp before entering the critical section so that we
# don't stall for a password while we have the lockfile.
sudo -v
(
flock 200
echo $$ >> "$LOCKFILE"
@ -232,6 +236,10 @@ function setup_env {
}
function teardown_env {
# Validate sudo timestamp before entering the critical section so that we
# don't stall for a password while we have the lockfile.
sudo -v
# Only teardown if we're the last enter_chroot to die
(
flock 200