fix(replace): no error returned when holder not found

Cargo.lock

@@ -3177,7 +3177,7 @@ dependencies = [
 
 [[package]]
 name = "pumpbin"
-version = "1.1.0"
+version = "1.1.1"
 dependencies = [
  "anyhow",
  "bincode",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "pumpbin"
-version = "1.1.0"
+version = "1.1.1"
 authors = ["b1n <b1n@b1n.io>"]
 edition = "2021"
 description = "PumpBin is an Implant Generation Platform."

build.rs

@@ -1,15 +1,13 @@
-fn build_capnp() {
+fn main() {
+    #[cfg(debug_assertions)]
+    {
         capnpc::CompilerCommand::new()
             .src_prefix("capnp")
             .file("capnp/plugin.capnp")
             .output_path("capnp")
             .run()
             .expect("schema compiler command");
-}
+    }
-
-fn main() {
-    #[cfg(debug_assertions)]
-    build_capnp();
 
     #[cfg(target_os = "windows")]
     {

src/plugin.rs

@@ -479,14 +479,14 @@ impl Plugin {
             self.replace().src_prefix(),
             shellcode_src.as_slice(),
             self.replace().max_len(),
-        );
+        )?;
 
         // replace pass
         for pass in pass {
             let holder = pass.holder();
             let replace_by = pass.replace_by();
 
-            utils::replace(bin, holder, replace_by, holder.len());
+            utils::replace(bin, holder, replace_by, holder.len())?;
         }
 
         // replace size_holder
@@ -503,7 +503,7 @@ impl Plugin {
                 .collect();
             size_bytes.extend_from_slice(shellcode_len_bytes.as_slice());
 
-            utils::replace(bin, size_holder, size_bytes.as_slice(), size_holder.len());
+            utils::replace(bin, size_holder, size_bytes.as_slice(), size_holder.len())?;
         }
 
         Ok(())

src/utils.rs

@@ -1,5 +1,6 @@
 use std::iter;
 
+use anyhow::anyhow;
 use iced::{
     advanced::graphics::image::image_rs::ImageFormat,
     window::{self, Level, Position},
@@ -62,11 +63,17 @@ pub fn window_settings() -> window::Settings {
     }
 }
 
-pub fn replace(bin: &mut [u8], holder: &[u8], replace_by: &[u8], max_len: usize) {
+pub fn replace(
+    bin: &mut [u8],
+    holder: &[u8],
+    replace_by: &[u8],
+    max_len: usize,
+) -> anyhow::Result<()> {
     let mut replace_by = replace_by.to_owned();
 
-    let find = memmem::find_iter(bin, holder).next();
+    let position = memmem::find_iter(bin, holder)
-    if let Some(position) = find {
+        .next()
+        .ok_or(anyhow!("Not found {}", String::from_utf8_lossy(holder)))?;
     let mut random: Vec<u8> = iter::repeat(b'0')
         .take(max_len - replace_by.len())
         .collect();
@@ -74,5 +81,6 @@ pub fn replace(bin: &mut [u8], holder: &[u8], replace_by: &[u8], max_len: usize)
     replace_by.extend_from_slice(random.as_slice());
 
     bin[position..(position + max_len)].copy_from_slice(replace_by.as_slice());
-    }
+
+    Ok(())
 }