Move SslString to a shared location

1 files changed, 43 insertions, 0 deletions

diff --git a/openssl/src/crypto.rs b/openssl/src/crypto.rs
new file mode 100644
index 00000000..0a121fa0
--- /dev/null
+++ b/openssl/src/crypto.rs
@@ -0,0 +1,43 @@
+use ffi;
+use libc::{c_int, c_void};
+use std::fmt;
+use std::slice;
+use std::ops::Deref;
+use std::str;
+
+pub struct CryptoString(&'static str);
+
+impl<'s> Drop for CryptoString {
+    fn drop(&mut self) {
+        unsafe {
+            CRYPTO_free!(self.0.as_ptr() as *mut c_void);
+        }
+    }
+}
+
+impl Deref for CryptoString {
+    type Target = str;
+
+    fn deref(&self) -> &str {
+        self.0
+    }
+}
+
+impl CryptoString {
+    pub unsafe fn from_raw_parts(buf: *const u8, len: usize) -> CryptoString {
+        let slice = slice::from_raw_parts(buf, len);
+        CryptoString(str::from_utf8_unchecked(slice))
+    }
+}
+
+impl fmt::Display for CryptoString {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        fmt::Display::fmt(self.0, f)
+    }
+}
+
+impl fmt::Debug for CryptoString {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        fmt::Debug::fmt(self.0, f)
+    }
+}