Use header files where possible

This fixes an incorrect re-declaration of ed25519_sign.

Implement header files for some of the other library bits so that we don't need
to declare functions in crypto.cpp.

1 files changed, 18 insertions, 0 deletions

diff --git a/lib/curve25519-donna.h b/lib/curve25519-donna.h
new file mode 100644
index 0000000..3c53d4a
--- /dev/null
+++ b/lib/curve25519-donna.h
@@ -0,0 +1,18 @@
+/* header file for the curve25519-donna implementation, because the
+ * authors of that project don't supply one.
+ */
+#ifndef CURVE25519_DONNA_H
+#define CURVE25519_DONNA_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern int curve25519_donna(unsigned char *output, const unsigned char *a,
+                            const unsigned char *b);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif