This commit is contained in:
kernelpanic 2023-09-23 05:38:53 -04:00
parent 797345abf6
commit 97595e4071
2 changed files with 113 additions and 0 deletions

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Cargo.toml Normal file
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[package]
name = "rsfus"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]

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src/main.rs Normal file
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use std::env;
use std::fs::File;
use std::io::{Read, Write};
use std::path::Path;
fn main() {
let args: Vec<String> = env::args().collect();
let iso_mount_dir = Path::new(args.get(1)
.expect("Arguments: rsfus (path to XP ISO mount)"))
.canonicalize().expect("Can't canonicalize path to XP ISO mount.");
if !iso_mount_dir.exists() || !iso_mount_dir.is_dir() {
panic!("XP ISO mount is not a directory.");
}
let amd64_basedir = iso_mount_dir.join("amd64");
let i386_basedir = iso_mount_dir.join("i386");
{
let mut ntdetect = File::open(amd64_basedir.join("ntdetect.com"))
.or(File::open(i386_basedir.join("ntdetect.com")))
.expect("Can't open file ntdetect.com.");
let mut ntdetect_copy = File::create(iso_mount_dir.join("ntdetect.com"))
.expect("Can't create file ntdetect.com.");
let mut ntdetect_contents = Vec::new();
println!("Reading {ntdetect:?}");
ntdetect.read_to_end(&mut ntdetect_contents).expect("Can't read ntdetect.com.");
println!("Writing {ntdetect_copy:?}");
ntdetect_copy.write_all(&ntdetect_contents).expect("Can't write to ntdetect.com.");
}
{
let mut txtsetup = File::open(amd64_basedir.join("txtsetup.sif"))
.or(File::open(i386_basedir.join("txtsetup.sif")))
.expect("Can't open file txtsetup.sif");
let mut txtsetup_copy = File::create(iso_mount_dir.join("txtsetup.sif"))
.expect("Can't create file txtsetup.sif");
let mut txtsetup_contents = String::new();
println!("Reading {txtsetup:?}");
txtsetup.read_to_string(&mut txtsetup_contents).expect("Can't read from txtsetup.sif.");
let mut txtsetup_lines: Vec<&str> = Vec::new();
for line in txtsetup_contents.lines() {
txtsetup_lines.push(line);
if line == "[SetupData]" {
println!("TXTSETP: Found [SetupData]");
txtsetup_lines.push(r#"SetupSourceDevice = "\device\harddisk1\partition1""#);
}
}
println!("Writing {txtsetup_copy:?}");
txtsetup_copy.write_all(txtsetup_lines.join("\r\n").as_bytes())
.expect("Couldn't write to txtsetup.sif.");
}
{
let mut bootmgr = File::open(amd64_basedir.join("setupldr.bin"))
.or(File::open(i386_basedir.join("setupldr.bin")))
.expect("Can't open file setupldr.bin");
let mut bootmgr_copy = File::create(iso_mount_dir.join("BOOTMGR"))
.expect("Can't create file BOOTMGR");
let mut bootmgr_contents = Vec::new();
println!("Reading {bootmgr:?}");
bootmgr.read_to_end(&mut bootmgr_contents).expect("Can't read from setupldr.bin");
if bootmgr_contents.len() > 0x2061
&& bootmgr_contents[0x2060] == 0x74
&& bootmgr_contents[0x2061] == 0x03 {
bootmgr_contents[0x2060] = 0xeb;
bootmgr_contents[0x2061] = 0x1a;
println!("BOOTMGR: 0x00002060 0x74 0x03 --> 0xeb 0x1a (Disable Win2k3 CRC check)");
}
let rdisk0 = b"rdisk(0)".as_slice();
let win_nt_bt = b"$win_nt$.~bt".as_slice();
let win_nt_bt_caps = b"$WIN_NT$.~BT".as_slice();
let amd64_bytes = b"amd64";
for index in 0..(bootmgr_contents.len() - win_nt_bt.len()) {
if &bootmgr_contents[index..index+rdisk0.len()] == rdisk0 {
println!("BOOTMGR: {index:#010x} Patching rdisk(0) --> rdisk(1)");
bootmgr_contents[index+6] = 0x31;
}
// $WIN_NT$_~BT -> i386/amd64
if &bootmgr_contents[index..index+win_nt_bt.len()] == win_nt_bt
|| &bootmgr_contents[index..index+win_nt_bt.len()] == win_nt_bt_caps {
println!("BOOTMGR: {index:#010x} Patching {:?} --> \"amd64\"", bootmgr_contents[index..index+win_nt_bt.len()].to_vec());
for i in 0..amd64_bytes.len() {
bootmgr_contents[index+i] = amd64_bytes[i];
}
bootmgr_contents[index + amd64_bytes.len()] = 0;
bootmgr_contents[index + amd64_bytes.len()] = bootmgr_contents[index + win_nt_bt.len()];
bootmgr_contents[index + amd64_bytes.len() + 1] = 0;
}
}
println!("Writing {bootmgr_copy:?}");
bootmgr_copy.write_all(bootmgr_contents.as_slice()).expect("Couldn't write to BOOTMGR");
}
println!("Done! :D");
}