[WIP]

ar_test.rs

@@ -0,0 +1,45 @@
+//! ```cargo
+//! [dependencies]
+//! ar = "0.6.2"
+//! ```
+
+use std::io::Read;
+
+// 64 gives Invalid file size field in entry header
+// 32 gives unexpected EOF in the middle of archive entry header
+const METADATA_LEN: usize = 64;
+
+fn main() {
+    let mut builder = ar::Builder::new(std::fs::File::create("test.a").expect("create"));
+
+    // Remove this append and there is no problem.
+    let header = ar::Header::new(b"core-fc675.rcgu.o".to_vec(), 0);
+    // Remove any of the characters in the filename and ! from will show up in the error message.
+    // Making it shorter than 17 chars will fix the problem though.
+
+    builder.append(&header, &mut (&[] as &[u8])).expect("add rcgu");
+
+    let mut buf: Vec<u8> = vec!['!' as u8; 28];
+    buf.extend(b"hello worl");
+    buf.extend(&['*' as u8; 26] as &[u8]);
+    assert!(buf.len() >= METADATA_LEN);
+
+    let header = ar::Header::new(b"rust.metadata.bin".to_vec(), METADATA_LEN as u64);
+    builder.append(&header, &mut (&buf[0..METADATA_LEN])).expect("add meta");
+
+    std::mem::drop(builder);
+
+    // Remove this ranlib invocation and there is no problem.
+    /*assert!(
+        std::process::Command::new("ranlib")
+            .arg("test.a")
+            .status()
+            .expect("Couldn't run ranlib")
+            .success()
+    );*/
+
+    let mut archive = ar::Archive::new(std::fs::File::open("test.a").expect("open"));
+    while let Some(entry) = archive.next_entry() {
+        entry.unwrap();
+    }
+}