From 4d23e09fb252210736a5a0bbe3105d781cadce65 Mon Sep 17 00:00:00 2001
From: Borja Garcia <debuti@gmail.com>
Date: Sat, 8 Nov 2025 00:25:33 +0100
Subject: [PATCH] Add file existence check before processing

Added a check to verify if the specified file exists and is readable before proceeding.
---
 src/main.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/main.cpp b/src/main.cpp
index 071e9c8..aaaf383 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -149,6 +149,16 @@ int main(int argc, char **argv)
 		return EXIT_SUCCESS;
 	}
 
+    // Check if file exists and is readable
+	{
+		std::ifstream file(args.bit_file);
+	    if (!args.bit_file.empty() && !file.good()) {
+            printError("Error: cannot open file '" + args.bit_file + "'");
+            return EXIT_FAILURE;
+        }
+        file.close();
+    }
+
 	if (args.prg_type == Device::WR_SRAM)
 		cout << "write to ram" << endl;
 	if (args.prg_type == Device::WR_FLASH)