From 1836f0493877159bc2c0551567875d71e73e63e4 Mon Sep 17 00:00:00 2001
From: Nicolas Roman <nroman@evolix.fr>
Date: Fri, 15 Feb 2019 15:34:19 +0100
Subject: [PATCH] added timeout on read function

---
 evomaintenance.sh | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/evomaintenance.sh b/evomaintenance.sh
index 1d22d71..b576e7f 100755
--- a/evomaintenance.sh
+++ b/evomaintenance.sh
@@ -63,6 +63,19 @@ get_now() {
   date +"%Y-%m-%dT%H:%M:%S%z"
 }
 
+# timeout on read(), uses TMOUT env as timer
+timedout_read() {
+	if [ -z ${TMOUT+x} ] || [ "$TMOUT" = 0 ]; then
+		export TMOUT=36000
+	fi
+	user_input=$1
+	old_tty_settings=$(stty -g)
+	stty -icanon min 0 time ${TMOUT}0
+	read $user_input
+	stty "$old_tty_settings"
+	unset TMOUT
+}
+
 test -f /etc/evomaintenance.cf && . /etc/evomaintenance.cf
 
 [ -n "${HOSTNAME}" ]     || HOSTNAME=$(get_fqdn)
@@ -123,7 +136,7 @@ fi
 
 # get input from stdin
 echo "> Please, enter details about your maintenance"
-read TEXTE
+timedout_read TEXTE
 
 if [ "${TEXTE}" = "" ]; then
     echo "no value..."
@@ -145,7 +158,7 @@ echo ""
 echo "${BLOB}"
 echo ""
 echo "> Press <Enter> to submit, or <Ctrl+c> to cancel."
-read enter
+timedout_read enter
 
 # write log
 echo "----------- $(get_now) ---------------" >> "${LOGFILE}"