From b5be7416179c0878818019c7f5f9e3824c44c2f4 Mon Sep 17 00:00:00 2001
From: Adrien Bourmault <neox@os-k.eu>
Date: Thu, 8 Jul 2021 18:49:27 +0200
Subject: [PATCH] Invalid command!

---
 src/cli.c    | 7 ++++++-
 src/server.c | 2 +-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/cli.c b/src/cli.c
index 22d97b0..503d79b 100644
--- a/src/cli.c
+++ b/src/cli.c
@@ -69,7 +69,12 @@ void connectedCommunication(int sockfd)
         // Reading server answer
         read(sockfd, receiveBuff, sizeof(receiveBuff));
 
-        printf("%s\n", receiveBuff);
+        // Detect null-string returned
+        if (receiveBuff[0] == 0) {
+            printLog("An error occured or invalid command!");
+        }
+
+        printf("%s\n\n", receiveBuff);
     }
 }
 
diff --git a/src/server.c b/src/server.c
index 1bf7a71..58fc334 100644
--- a/src/server.c
+++ b/src/server.c
@@ -76,7 +76,7 @@ static void serverCommunicationInstance(Server_t *args, int sockfd)
         }
 
         // Zeroing buffer
-        snprintf(sendBuff, SEND_BUFFER_SIZE,  "%s", "Invalid command!");
+        bzero(sendBuff, RECEIVE_BUFFER_SIZE);
 
         // Execute command by first arg in cmdList
         for (int i = 0; i < LEN(cmdList); i++) {