1 files changed, 96 insertions, 0 deletions
diff --git a/vendor/openssl/src/string.rs b/vendor/openssl/src/string.rs
new file mode 100644
index 0000000..95494b5
--- /dev/null
+++ b/vendor/openssl/src/string.rs
@@ -0,0 +1,96 @@
+use foreign_types::ForeignTypeRef;
+use libc::{c_char, c_void};
+use std::convert::AsRef;
+use std::ffi::CStr;
+use std::fmt;
+use std::ops::Deref;
+use std::str;
+
+use crate::stack::Stackable;
+
+foreign_type_and_impl_send_sync! {
+    type CType = c_char;
+    fn drop = free;
+
+    pub struct OpensslString;
+    pub struct OpensslStringRef;
+}
+
+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 AsRef<str> for OpensslString {
+    fn as_ref(&self) -> &str {
+        self
+    }
+}
+
+impl AsRef<[u8]> for OpensslString {
+    fn as_ref(&self) -> &[u8] {
+        self.as_bytes()
+    }
+}
+
+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 AsRef<str> for OpensslStringRef {
+    fn as_ref(&self) -> &str {
+        self
+    }
+}
+
+impl AsRef<[u8]> for OpensslStringRef {
+    fn as_ref(&self) -> &[u8] {
+        self.as_bytes()
+    }
+}
+
+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)
+    }
+}
+
+#[inline]
+#[cfg(not(boringssl))]
+unsafe fn free(buf: *mut c_char) {
+    ffi::OPENSSL_free(buf as *mut c_void);
+}
+
+#[inline]
+#[cfg(boringssl)]
+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,
+    );
+}