From aa18195724c22897abd0ab50ea0020b7ed91e9b9 Mon Sep 17 00:00:00 2001
From: pankunull <panku_null@proton.me>
Date: Sat, 6 Sep 2025 14:36:49 +0200
Subject: Renamed source

---
 src/iptool.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/iptool.c b/src/iptool.c
index 105f7a8..cf2f190 100644
--- a/src/iptool.c
+++ b/src/iptool.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * subnet_calc.c - Simple IP subnet calculator
+ * iptool.c - Simple IP subnet calculator
  *
  * Takes an IPv4 address and a prefix length, then calculates:
  *  - IP class
@@ -15,8 +15,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#define PROGRAM_NAME "iptool"
-
 static uint32_t ip_to_u32(const char *ip_str)
 {
 	int o1, o2, o3, o4;
@@ -93,7 +91,7 @@ int main(int argc, char *argv[])
 	uint32_t total, usable;
 
 	if (argc < 3) {
-		fprintf(stderr, "Usage: %s <ip> <prefix>\n", PROGRAM_NAME);
+		fprintf(stderr, "Usage: %s <ip> <prefix>\n", argv[0]);
 		return 1;
 	}
 
-- 
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