Remove "users" crate, call libc directly

This is all I actually needed anyways

Cargo.lock

@@ -330,6 +330,7 @@ dependencies = [
  "env_logger",
  "home",
  "indoc",
+ "libc",
  "log",
  "open",
  "pretty_assertions",
@@ -341,7 +342,6 @@ dependencies = [
  "tokio-stream",
  "toml",
  "tui",
- "users",
  "xdg",
 ]
 
@@ -1114,16 +1114,6 @@ version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e51733f11c9c4f72aa0c160008246859e340b00807569a0da0e7a1079b27ba85"
 
-[[package]]
-name = "users"
-version = "0.11.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "24cc0f6d6f267b73e5a2cadf007ba8f9bc39c6a6f9666f8cf25ea809a153b032"
-dependencies = [
- "libc",
- "log",
-]
-
 [[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"

Cargo.toml

@@ -40,4 +40,4 @@ tempdir = "0.3"
 procfs = "0.14.1"
 
 [target.'cfg(target_family="unix")'.dependencies]
-users = "0.11"
+libc = "0.2.155"

src/reverse/unix.rs

@@ -55,7 +55,8 @@ fn socket_directory() -> Result<std::path::PathBuf> {
         Ok(path) => Ok(path),
         Err(_) => {
             let mut path = std::env::temp_dir();
-            path.push(format!("fwd{}", users::get_current_uid()));
+            let uid = unsafe { libc::getuid() };
+            path.push(format!("fwd{}", uid));
             Ok(path)
         }
     }