From 5c5fda62e6a62db12cb2644cf68a4087a8f10e39 Mon Sep 17 00:00:00 2001
From: Sander Speetjens <sander.speetjens@gmail.com>
Date: Tue, 5 Dec 2023 20:08:51 +0100
Subject: [PATCH] tcp_cmd

fix second message of unknown command
---
 project/Core/Src/tcp_cmd.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/project/Core/Src/tcp_cmd.c b/project/Core/Src/tcp_cmd.c
index cb5c85f..d1f600e 100644
--- a/project/Core/Src/tcp_cmd.c
+++ b/project/Core/Src/tcp_cmd.c
@@ -386,7 +386,9 @@ err_t tcp_cmd_recv(void* arg, struct tcp_pcb* pcb, struct pbuf* p, err_t err) {
     // Split string into tokens by delimiter (space)
     cmd_ptr = tcp_cmd_remove_leading_space(cmd, strlen(cmd));
     argv[0] = tcp_cmd_get_next_token(cmd_ptr, " ", &next);
-    argc = 1;
+    if(argv[0] != NULL) {
+        argc = 1;
+    }
     while (argv[argc - 1] != NULL && argc < MAX_TOKENS) {
         // Check if the next token is 0 (end of string) strlen doesn't work here
         if (*next == 0) {