Switch over to rustpkg

1 files changed, 35 insertions, 0 deletions

diff --git a/src/crypto/rand.rs b/src/crypto/rand.rs
new file mode 100644
index 00000000..6510b9f4
--- /dev/null
+++ b/src/crypto/rand.rs
@@ -0,0 +1,35 @@
+use std::libc::c_int;
+use std::vec;
+
+mod libcrypto {
+    use std::libc::c_int;
+
+    #[link(name = "crypto")]
+    extern {
+        pub fn RAND_bytes(buf: *mut u8, num: c_int) -> c_int;
+    }
+}
+
+pub fn rand_bytes(len: uint) -> ~[u8] {
+    let mut out = vec::with_capacity(len);
+
+    out.as_mut_buf(|out_buf, len| {
+        let r = unsafe { libcrypto::RAND_bytes(out_buf, len as c_int) };
+        if r != 1 as c_int { fail!() }
+    });
+
+    unsafe { out.set_len(len); }
+
+    out
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_rand_bytes() {
+        let bytes = rand_bytes(32u);
+        println!("{:?}", bytes);
+    }
+}