commit 05be19d4be6ba44d388f4a4b1c2e15792ff09469
Author: Charlotte D <darkkirb@gmail.com>
Date:   Thu Oct 4 08:55:33 2018 +0100

    Source code

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..53eaa21
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/target
+**/*.rs.bk
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..3957fe3
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,108 @@
+[[package]]
+name = "blockrsync"
+version = "0.1.0"
+dependencies = [
+ "pbr 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "kernel32-sys"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
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+ "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "pbr"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "redox_syscall"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "redox_termios"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
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+name = "termion"
+version = "1.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
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+dependencies = [
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "winapi"
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+
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+name = "winapi"
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+dependencies = [
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+ "winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
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+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
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+name = "winapi-i686-pc-windows-gnu"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[metadata]
+"checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..dbd18c1
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "blockrsync"
+version = "0.1.0"
+authors = ["Charlotte D <darkkirb@gmail.com>"]
+edition = "2018"
+
+[dependencies]
+pbr = "1.0.1"
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..24e4ecd
--- /dev/null
+++ b/README.md
@@ -0,0 +1 @@
+This is a tool that synchronizes two block devices. Both of the block devices have to be the same size and the size needs to be a multiple of 128KiB
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..eacec58
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,44 @@
+extern crate pbr;
+
+use std::env;
+use std::fs::File;
+use std::io::prelude::*;
+use std::io;
+use std::fs::OpenOptions;
+use pbr::{ProgressBar, Units};
+
+fn main() -> io::Result<()> {
+    let args: Vec<String> = env::args().collect();
+    let mut inf = File::open(&args[1])?;
+    let mut outf = OpenOptions::new()
+               .read(true)
+               .write(true)
+               .open(&args[2])?;
+    let size = inf.seek(io::SeekFrom::End(0))?;
+    inf.seek(io::SeekFrom::Start(0))?;
+    if (size & 0x1FFFF) != 0 {
+        panic!("Block device has to be a multiple of 128KiB in size!");
+    }
+    let block_count = size / (128 * 1024);
+    let mut pb = ProgressBar::new(size);
+    pb.set_units(Units::Bytes);
+    let mut buf1: [u8; 128 * 1024] = [0; 128 * 1024];
+    let mut buf2: [u8; 128 * 1024] = [0; 128 * 1024];
+    let mut read_data: u64 = 0;
+    let mut written_data: u64 = 0;
+    for _ in 0..block_count {
+        inf.read(&mut buf1)?;
+        outf.read(&mut buf2)?;
+        read_data += 128 * 1024;
+        if buf1[..] != buf2[..] {
+            written_data += 128 * 1024;
+            // rewind outfile
+            outf.seek(io::SeekFrom::Current(-128 * 1024))?;
+            outf.write(&buf1)?;
+        }
+        pb.add(128 * 1024);
+    }
+    pb.finish();
+    println!("Total Data: {} bytes, Changed Data: {} bytes", read_data, written_data);
+    Ok(())
+}