X-Git-Url: https://wagner.pp.ru/gitweb/?a=blobdiff_plain;f=ctypescrypto%2Fengine.py;fp=ctypescrypto%2Fengine.py;h=47f4878d72d9c542a5659002302d72375c46c5b5;hb=1ff9b1899959673512927b6afa317855908b7073;hp=0000000000000000000000000000000000000000;hpb=7b229d0dba6fc42eddf3c359c3d9510330a1eeaf;p=oss%2Fctypescrypto.git

diff --git a/ctypescrypto/engine.py b/ctypescrypto/engine.py
new file mode 100644
index 0000000..47f4878
--- /dev/null
+++ b/ctypescrypto/engine.py
@@ -0,0 +1,27 @@
+from ctypes import *
+from ctypescrypto import libcrypto
+from ctypescrypto.exception import LibCryptoError
+default=None
+
+def set_default(engine):
+	global default
+	e=libcrypto.ENGINE_by_id(engine)
+	if e is None:
+		# Try load engine
+		e = libcrypto.ENGINE_by_id("dynamic")
+		if  e is None:
+			raise LibCryptoError("Cannot get 'dynamic' engine")
+		if not libcrypto.ENGINE_ctrl_cmd_string(e,"SO_PATH",engine,0):
+			raise LibCryptoError("Cannot execute ctrl cmd SO_PATH")
+		if not libcrypto.ENGINE_ctrl_cmd_string(e,"LOAD",None,0):
+			raise LibCryptoError("Cannot execute ctrl cmd LOAD")
+	if e is None:
+		raise ValueError("Cannot find engine "+engine)
+	libcrypto.ENGINE_set_default(e,c_int(0xFFFF))
+	default=e
+
+# Declare function result and arguments for used functions
+libcrypto.ENGINE_by_id.restype=c_void_p
+libcrypto.ENGINE_by_id.argtypes=(c_char_p,)
+libcrypto.ENGINE_set_default.argtypes=(c_void_p,c_int)
+libcrypto.ENGINE_ctrl_cmd_string.argtypes=(c_void_p,c_char_p,c_char_p,c_int)