1 files changed, 80 insertions, 0 deletions
diff --git a/openssl/src/string.rs b/openssl/src/string.rs
new file mode 100644
index 00000000..4a1d3479
--- /dev/null
+++ b/openssl/src/string.rs
@@ -0,0 +1,80 @@
+use ffi;
+use foreign_types::{ForeignType, ForeignTypeRef};
+use libc::{c_char, c_void};
+use std::fmt;
+use std::ffi::CStr;
+use std::ops::Deref;
+use std::str;
+
+use stack::Stackable;
+
+foreign_type! {
+    type CType = c_char;
+    fn drop = free;
+
+    pub struct OpensslString;
+    pub struct OpensslStringRef;
+}
+
+impl OpensslString {
+    #[deprecated(note = "use from_ptr", since = "0.9.7")]
+    pub unsafe fn from_raw_parts(buf: *mut u8, _: usize) -> OpensslString {
+        OpensslString::from_ptr(buf as *mut c_char)
+    }
+
+    #[deprecated(note = "use from_ptr", since = "0.9.7")]
+    pub unsafe fn from_null_terminated(buf: *mut c_char) -> OpensslString {
+        OpensslString::from_ptr(buf)
+    }
+}
+
+impl fmt::Display for OpensslString {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        fmt::Display::fmt(&**self, f)
+    }
+}
+
+impl fmt::Debug for OpensslString {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        fmt::Debug::fmt(&**self, f)
+    }
+}
+
+impl Stackable for OpensslString {
+    type StackType = ffi::stack_st_OPENSSL_STRING;
+}
+
+impl Deref for OpensslStringRef {
+    type Target = str;
+
+    fn deref(&self) -> &str {
+        unsafe {
+            let slice = CStr::from_ptr(self.as_ptr()).to_bytes();
+            str::from_utf8_unchecked(slice)
+        }
+    }
+}
+
+impl fmt::Display for OpensslStringRef {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        fmt::Display::fmt(&**self, f)
+    }
+}
+
+impl fmt::Debug for OpensslStringRef {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        fmt::Debug::fmt(&**self, f)
+    }
+}
+
+#[cfg(not(ossl110))]
+unsafe fn free(buf: *mut c_char) {
+    ::ffi::CRYPTO_free(buf as *mut c_void);
+}
+
+#[cfg(ossl110)]
+unsafe fn free(buf: *mut c_char) {
+    ::ffi::CRYPTO_free(buf as *mut c_void,
+                       concat!(file!(), "\0").as_ptr() as *const c_char,
+                       line!() as ::libc::c_int);
+}