Probably won't work.

src/io.rs

@@ -1,6 +1,7 @@
+use std::ffi::CString;
 use std::fs::{File, OpenOptions};
 use std::io::{self, Seek, SeekFrom};
-use std::os::unix::fs::OpenOptionsExt;
+use std::os::fd::{AsRawFd, FromRawFd, IntoRawFd};
 
 use crate::cli::CONFIG;
 
@@ -20,21 +21,22 @@ pub fn get_stream_length<S: Seek>(stream: &mut S) -> io::Result<u64> {
     len
 }
 
-pub fn load_input() -> anyhow::Result<File> {
-    OpenOptions::new()
-        .read(true)
-        .custom_flags(libc::O_DIRECT)
-        .open(&CONFIG.input)
-        .with_context(|| format!("Failed to open input file: {}", &CONFIG.input.display()))
-
-    /*
-    use std::ffi::CString;
-    use std::os::fd::FromRawFd;
-
-    let path = CString::new(CONFIG.input.to_str().unwrap().to_owned()).unwrap();
-    let flags = libc::O_DIRECT | libc::O_RDONLY;
-    let f = unsafe { File::from_raw_fd(libc::open(path.as_ptr(), flags)) };
+/*
+ * IO Error Poisoning:
+ *
+ *
+ * Attempt 1:
+ *
+ * Wrap C calls w/ `ffi`. Most importantly, execute the `close()` through C.
+ *
+ * I cannot seem to execute `close()`... one hopes that reassigning will drop
+ * calling `close()` on the old fd, but I don't know.
  */
+
+pub fn load_input() -> anyhow::Result<File> {
+    let path = CString::new(CONFIG.input.to_str().unwrap().to_owned())?;
+    let flags = libc::O_RDONLY | libc::O_DIRECT;
+    Ok(unsafe { File::from_raw_fd(libc::open(path.as_ptr(), flags)) })
 }
 
 pub fn load_output() -> anyhow::Result<File> {