fix cffi warnings for proper buffer types (#545)
diff --git a/src/OpenSSL/SSL.py b/src/OpenSSL/SSL.py
index 3f97ccb..2d76516 100644
--- a/src/OpenSSL/SSL.py
+++ b/src/OpenSSL/SSL.py
@@ -1613,7 +1613,7 @@
return None
length = _lib.SSL_get_server_random(self._ssl, _ffi.NULL, 0)
assert length > 0
- outp = _ffi.new("char[]", length)
+ outp = _ffi.new("unsigned char[]", length)
_lib.SSL_get_server_random(self._ssl, outp, length)
return _ffi.buffer(outp, length)[:]
@@ -1629,7 +1629,7 @@
length = _lib.SSL_get_client_random(self._ssl, _ffi.NULL, 0)
assert length > 0
- outp = _ffi.new("char[]", length)
+ outp = _ffi.new("unsigned char[]", length)
_lib.SSL_get_client_random(self._ssl, outp, length)
return _ffi.buffer(outp, length)[:]
@@ -1645,7 +1645,7 @@
length = _lib.SSL_SESSION_get_master_key(session, _ffi.NULL, 0)
assert length > 0
- outp = _ffi.new("char[]", length)
+ outp = _ffi.new("unsigned char[]", length)
_lib.SSL_SESSION_get_master_key(session, outp, length)
return _ffi.buffer(outp, length)[:]