From 71990de64a45bd7c565c4ed673307a8e62313b9a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vedran=20Pri=C5=A1=C4=87an?= <priscan.vedran@gmail.com>
Date: Wed, 9 Dec 2020 12:39:07 +0100
Subject: [PATCH 1/2] use netcat if the command exists, set netcat connection
 timeout to 10 seconds

---
 wait-for-it.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/wait-for-it.sh b/wait-for-it.sh
index d990e0d..f28d3b9 100755
--- a/wait-for-it.sh
+++ b/wait-for-it.sh
@@ -32,8 +32,8 @@ wait_for()
     WAITFORIT_start_ts=$(date +%s)
     while :
     do
-        if [[ $WAITFORIT_ISBUSY -eq 1 ]]; then
-            nc -z $WAITFORIT_HOST $WAITFORIT_PORT
+        if command -v nc &> /dev/null ; then
+            nc -z -w 10 $WAITFORIT_HOST $WAITFORIT_PORT
             WAITFORIT_result=$?
         else
             (echo -n > /dev/tcp/$WAITFORIT_HOST/$WAITFORIT_PORT) >/dev/null 2>&1

From d34c7531aaea08b8d3bc2e9d3e6d22b1eafa4c7f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vedran=20Pri=C5=A1=C4=87an?= <priscan.vedran@gmail.com>
Date: Wed, 9 Dec 2020 13:42:26 +0100
Subject: [PATCH 2/2] add timeout of 10 seconds for network redirection

---
 wait-for-it.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wait-for-it.sh b/wait-for-it.sh
index f28d3b9..dca4d37 100755
--- a/wait-for-it.sh
+++ b/wait-for-it.sh
@@ -36,7 +36,7 @@ wait_for()
             nc -z -w 10 $WAITFORIT_HOST $WAITFORIT_PORT
             WAITFORIT_result=$?
         else
-            (echo -n > /dev/tcp/$WAITFORIT_HOST/$WAITFORIT_PORT) >/dev/null 2>&1
+            timeout 10 bash -c "(echo -n > /dev/tcp/$WAITFORIT_HOST/$WAITFORIT_PORT) >/dev/null 2>&1"
             WAITFORIT_result=$?
         fi
         if [[ $WAITFORIT_result -eq 0 ]]; then