1 files changed, 14 insertions, 0 deletions
diff --git a/openssl/src/c_helpers.rs b/openssl/src/c_helpers.rs
new file mode 100644
index 00000000..90fcf877
--- /dev/null
+++ b/openssl/src/c_helpers.rs
@@ -0,0 +1,14 @@
+use ffi;
+use libc::{c_int, c_void, c_uint, c_uchar};
+
+#[allow(dead_code)]
+extern "C" {
+    pub fn rust_SSL_CTX_clone(cxt: *mut ffi::SSL_CTX);
+    pub fn rust_X509_clone(x509: *mut ffi::X509);
+    pub fn rust_X509_get_extensions(x: *mut ffi::X509) -> *mut ffi::stack_st_X509_EXTENSION;
+
+    pub fn rust_HMAC_Init_ex(ctx: *mut ffi::HMAC_CTX, key: *const c_void, keylen: c_int, md: *const ffi::EVP_MD, impl_: *mut ffi::ENGINE) -> c_int;
+    pub fn rust_HMAC_Final(ctx: *mut ffi::HMAC_CTX, output: *mut c_uchar, len: *mut c_uint) -> c_int;
+    pub fn rust_HMAC_Update(ctx: *mut ffi::HMAC_CTX, input: *const c_uchar, len: c_uint) -> c_int;
+    pub fn rust_DH_new_from_params(p: *mut ffi::BIGNUM, g: *mut ffi::BIGNUM, q: *mut ffi::BIGNUM) -> *mut ffi::DH;
+}