From 3845ac135228877411ef7389908e491afca16553 Mon Sep 17 00:00:00 2001
From: Jukka Taimisto <jtaimisto@gmail.com>
Date: Tue, 26 Oct 2021 15:45:27 +0300
Subject: [PATCH] Do not allow 0 concurrent scans in config

Also unify the error messages if verify() finds invalid values
---
 src/config.rs | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/config.rs b/src/config.rs
index dc1fbd9..3ef5804 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -618,14 +618,21 @@ impl Config {
         if self.timeout.is_none() {
             missing_fields.push(ARG_TIMEOUT);
         }
-        if self.concurrent_scans.is_none() {
+        if let Some(c) = self.concurrent_scans {
+            if c == 0 {
+                return Err(Error::Message(format!(
+                    "invalid value for {}: Value needs to be non-zero",
+                    ARG_CONCURRENT_SCANS
+                )));
+            }
+        } else {
             missing_fields.push(ARG_CONCURRENT_SCANS);
         }
         if let Some(c) = self.try_count {
             if c == 0 {
                 return Err(Error::Message(format!(
-                    "Invalid {} {}, expecting non-zero positive count",
-                    ARG_TRY_COUNT, c
+                    "invalid value for {}: value needs to be non-zero",
+                    ARG_TRY_COUNT
                 )));
             }
         } else {