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Fix subshell killing to avoid zombies

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Learned from the rest of the code ...
This commit is contained in:
Emmanuel Fusté 2024-02-19 10:58:04 +01:00
parent 19607d7c2c
commit af20952b86
1 changed files with 3 additions and 2 deletions
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3
testssl.sh
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@ -17083,11 +17083,12 @@ run_renego() {
(for ((i=0; i < ssl_reneg_attempts; i++ )); do echo R; sleep $ssl_reneg_wait; done) | \
$OPENSSL s_client $(s_client_options "$proto $legacycmd $STARTTLS $BUGS -connect $NODEIP:$PORT $PROXY $SNI") >$TMPFILE 2>>$ERRFILE &
pid=$!
( sleep $(($ssl_reneg_attempts*3)) && kill $pid && touch $TEMPDIR/was_killed ) >&2 2>/dev/null &
( sleep $(($ssl_reneg_attempts*3)) && pkill -HUP -P $pid && wait $pid && touch $TEMPDIR/was_killed ) >&2 2>/dev/null &
watcher=$!
# Trick to get the return value of the openssl command, output redirection and a timeout. Yes, some target hang/block after some tries.
wait $pid && pkill -HUP -P $watcher
tmp_result=$?
wait $watcher
# If we are here, we have done two successful renegotiation (-2) and do the loop
loop_reneg=$(($(grep -ac '^RENEGOTIATING' $ERRFILE )-2))
if [[ -f $TEMPDIR/was_killed ]]; then