Initial commit

Signed-off-by: Ivan Bushchik <ivabus@ivabus.dev>

.gitignore

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+/target

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "cc"
+version = "1.0.83"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1174fb0b6ec23863f8b971027804a42614e347eafb0a95bf0b12cdae21fc4d0"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "cfg-if"
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+
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+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
+[[package]]
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+[[package]]
+name = "privod"
+version = "0.1.0"
+dependencies = [
+ "cc",
+ "rand",
+]
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+ "libc",
+ "rand_chacha",
+ "rand_core",
+]
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+ "rand_core",
+]
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+ "getrandom",
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Cargo.toml

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+[package]
+name = "privod"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+rand = "0.8.5"
+
+
+[build-dependencies]
+cc = "1.0.46"
+

LICENSE

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+MIT License
+
+Copyright (c) 2024 Ivan Bushchik
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
+OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+# Privod (оптический привод)
+
+Ejects CD/DVD/BD drive at random time (from 5 secs to 5 mins)
+
+Linux only.
+
+## Usage
+
+```shell
+cargo run <PATH_TO_DRIVE>
+```
+
+`PATH_TO_DRIVE` is usually `/dev/sr0`
+
+## TODO
+
+- [ ] Delay setup
+
+## License
+
+The project is licensed under the terms of the [MIT license](./LICENSE).

build.rs

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+fn main() {
+    cc::Build::new()
+        .file("src/get_status.c")
+        .compile("get_status");
+    println!("cargo:rerun-if-changed=src/get_status.c");
+}

src/get_status.c

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+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <linux/cdrom.h>
+#include <unistd.h>
+
+int get_status(char *drive_path) {
+    int cdrom;
+    int status=1;
+
+    if ((cdrom = open(drive_path,O_RDONLY | O_NONBLOCK)) < 0) {
+        status=2;
+    }
+
+    if (ioctl(cdrom,CDROM_DRIVE_STATUS) == CDS_TRAY_OPEN) {
+        status=0;
+    }
+
+    close(cdrom);
+    return status;
+}
+
+void eject(char *drive_path) {
+    // Ignoring everything
+    int cdrom;
+    cdrom = open(drive_path, O_RDONLY | O_NONBLOCK);
+    ioctl (cdrom, CDROMEJECT);
+}

src/main.rs

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+use rand::Rng;
+use std::ffi::{c_char, CString};
+
+#[link(name = "get_status")]
+extern "C" {
+    pub fn get_status(drive_path: *const c_char) -> std::ffi::c_int;
+    pub fn eject(drive_path: *const c_char);
+}
+
+fn sleep_rnd() {
+    let sleeptime = rand::thread_rng().gen_range(5..300);
+    eprintln!("Sleeping for {} secs", &sleeptime);
+    std::thread::sleep(std::time::Duration::from_secs(sleeptime));
+}
+
+fn main() {
+    let dr_name = CString::new(std::env::args().collect::<Vec<String>>()[1].as_bytes()).unwrap();
+    println!("{:?}", unsafe { get_status(dr_name.as_ptr()) });
+    unsafe {
+        loop {
+            if get_status(dr_name.as_ptr()) != 0x1 {
+                while get_status(dr_name.as_ptr()) != 0x1_i32 {
+                    eprintln!("Status != 0x1, sleeping 100ms");
+                    std::thread::sleep(std::time::Duration::from_millis(100));
+                }
+                sleep_rnd()
+            }
+            eject(dr_name.as_ptr());
+            sleep_rnd();
+        }
+    }
+}