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这是一个用于从另一个进程读取内存的 crate。代码最初来自 rbspy 项目。现在这个 crate 已回归到 rbspy GitHub 组织。 :)

示例

此示例通过作为子进程重新执行自身来演示，以便有一个独立的进程用于演示目的。如果你需要从你创建的进程读取内存，你的使用方式应该与此非常相似

use std::convert::TryInto;
use std::env;
use std::io::{self, BufReader, BufRead, Read, Result};
use std::process::{Command, Stdio};

use read_process_memory::{
  Pid,
  ProcessHandle,
  CopyAddress,
  copy_address,
};

fn main() -> Result<()> {
    if env::args_os().len() > 1 {
      // We are the child.
      return in_child();
    }
    // Run this executable again so we have a child process to read.
    let mut child = Command::new(env::current_exe()?)
        .stdin(Stdio::piped())
        .stdout(Stdio::piped())
        .arg("child")
        .spawn()?;

    // Get a ProcessHandle to work with.
    let handle: ProcessHandle = (&child).try_into().unwrap();

    // The child process will print the address to read from on stdout.
    let mut stdout = BufReader::new(child.stdout.take().unwrap());
    let mut addr_string = String::new();
    stdout.read_line(&mut addr_string)?;
    let address = usize::from_str_radix(addr_string.trim(), 16).unwrap();

    // Try to read 10 bytes from that address
    let bytes = copy_address(address, 10, &handle)?;
    println!("Read: {:?}", bytes);

    // Tell the child to exit by closing its stdin.
    drop(child.stdin.take());
    // And wait for it to exit.
    child.wait()?;
    Ok(())
}

fn in_child() -> Result<()> {
    // Allocate a 10-byte Vec for the parent to read.
    let readable_bytes: Vec<u8> = vec![
        0xc0, 0x72, 0x80, 0x79, 0xeb, 0xf1, 0xbc, 0x87, 0x06, 0x14,
    ];
    // Print the address of the Vec to stdout so the parent can find it.
    println!("{:x}", readable_bytes.as_ptr() as usize);
    // Now wait to exit until the parent closes our stdin, to give
    // it time to read the memory.
    let mut buf = Vec::new();
    // We don't care if this succeeds.
    drop(io::stdin().read_to_end(&mut buf));
    Ok(())
}