check_curl: add expected status code option

check_curl.sh

@@ -15,6 +15,7 @@ usage() {
   -M Set the HTTP mode (default: GET)
   -t Timeout in seconds
   -s Ignore the response status code.
+  -e Specify the exact response code that should be returned. Cannot be used with -s option.
   -e Expected status code.
   -S Sanitize HTML when printing to console. Good for Icinga2 Web.
   -n Don't return any perfdata if the status code was not 200."
@@ -67,6 +68,10 @@ while getopts "u:w:c:C:LH:M:IpR:st:e:hSn" opt; do
     RESOLVE="--resolve $OPTARG"
     ;;
   s)
+    if [ -n "$EXPECTED_STATUS_CODE" ]; then
+      echo "Cannot use -s option with -e option"
+      exit 3
+    fi
     IGNORE_STATUS="yes"
     ;;
   t)
@@ -87,6 +92,13 @@ while getopts "u:w:c:C:LH:M:IpR:st:e:hSn" opt; do
   n)
     DISABLE_PERFDATA=true
     ;;
+  e)
+    if [ "$IGNORE_STATUS" = "yes" ]; then
+      echo "Cannot use -e option with -s option"
+      exit 3
+    fi
+    EXPECTED_STATUS_CODE="$OPTARG"
+    ;;
   *)
     echo "Invalid option: -$OPTARG" >&2
     usage
@@ -399,11 +411,11 @@ perfdata="response_time=${RESPONSE_TIME_MS}ms;${WARN_TIME};${CRIT_TIME};0;"
 
 # Check HTTP code
 if [ -n "$EXPECTED_STATUS_CODE" ]; then
-  if [ "$HTTP_CODE" -ne "$EXPECTED_STATUS_CODE" ]; then
+  if [ "$HTTP_CODE" != "$EXPECTED_STATUS_CODE" ]; then
     echo "CRITICAL - server returned HTTP code $HTTP_CODE, expected $EXPECTED_STATUS_CODE"
     exit 2
   fi
-elif [ "$IGNORE_STATUS" != "yes" ] && [ "$HTTP_CODE" -ne 200 ]; then
+elif [ "$IGNORE_STATUS" != "yes" ] && [ "$HTTP_CODE" != 200 ]; then
   echo "CRITICAL - server returned HTTP code $HTTP_CODE"
   exit 2
 fi