From 1c587be39b39033329510ec74631709fa4213864 Mon Sep 17 00:00:00 2001
From: LoRd_MuldeR <mulder2@gmx.de>
Date: Thu, 27 Jan 2022 00:21:28 +0100
Subject: [PATCH] Gracefully handle an *empty* argument array (argc < 1), which
 apparently is possible on Linux and maybe others.

---
 frontend/src/main.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/frontend/src/main.c b/frontend/src/main.c
index cea5e71..a781d9f 100644
--- a/frontend/src/main.c
+++ b/frontend/src/main.c
@@ -158,6 +158,12 @@ int MAIN(const int argc, CHR *const argv[])
 	/* Parse arguments                                       */
 	/* ----------------------------------------------------- */
 
+	if (argc < 1)
+	{
+		FPUTS(T("Error: Argument array is empty. The program was called incorrectly!\n\n"), stderr);
+		goto clean_up;
+	}
+
 	if (argc < 2)
 	{
 		FPRINTF(stderr, T("Error: Nothing to do. Please type '%") T(PRISTR) T(" --help' for details!\n\n"), get_file_name(argv[0U]));