From b39cea283bb0ab787bedd57b72aeedfac4955c12 Mon Sep 17 00:00:00 2001
From: WasserEsser <wasseresser@DESKTOP-21M38VD.localdomain>
Date: Thu, 30 Apr 2026 12:53:48 +0200
Subject: [PATCH] Add ELF binary file type validation

---
 patch.sh | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/patch.sh b/patch.sh
index 2f17a53..104d9a2 100644
--- a/patch.sh
+++ b/patch.sh
@@ -16,7 +16,7 @@ cleanup() {
 trap cleanup EXIT
 
 # Check for required dependencies
-DEPENDENCIES=(hexdump xxd grep awk dd tr mktemp)
+DEPENDENCIES=(hexdump xxd grep awk dd tr mktemp file)
 MISSING_DEPS=()
 
 for dep in "${DEPENDENCIES[@]}"; do
@@ -51,6 +51,13 @@ if [ ! -w "$BINARY_FILE" ]; then
     exit 5
 fi
 
+# Check if file is an ELF binary
+FILE_TYPE=$(file -b "$BINARY_FILE" 2>/dev/null || echo "unknown")
+if ! echo "$FILE_TYPE" | grep -q "ELF"; then
+    echo "Error: '$BINARY_FILE' does not appear to be an ELF binary (detected: $FILE_TYPE)."
+    exit 11
+fi
+
 SEARCH_PATTERN=$(echo "$PATTERN" | tr -d ' ' | tr '?' '.' | tr 'A-Z' 'a-z')
 PATCHED_PATTERN=$(echo "$PATTERN" | sed 's/74 53/75 53/' | tr -d ' ' | tr '?' '.' | tr 'A-Z' 'a-z')