X-Git-Url: http://wagner.pp.ru/gitweb/?a=blobdiff_plain;f=ctypescrypto%2Fexception.py;h=d2866a020c050f4ddf5d5a105b91c60a529f128e;hb=876630b04080b68d724e22066d374ce25efd8a97;hp=f0f3c5343238cabcd382c68ebe03e9738760c7fc;hpb=1ff9b1899959673512927b6afa317855908b7073;p=oss%2Fctypescrypto.git

diff --git a/ctypescrypto/exception.py b/ctypescrypto/exception.py
index f0f3c53..d2866a0 100644
--- a/ctypescrypto/exception.py
+++ b/ctypescrypto/exception.py
@@ -1,35 +1,38 @@
-from ctypes import *
-from ctypescrypto import libcrypto
-strings_loaded=False
+"""
+Exception which extracts libcrypto error information
+"""
+from ctypes import c_ulong, c_char_p, create_string_buffer
+from ctypescrypto import libcrypto, strings_loaded
+
+__all__ = ['LibCryptoError', 'clear_err_stack']
+
 class LibCryptoError(Exception):
-	"""
-		Exception for libcrypto errors. Adds all the info, which can be
-		extracted from internal (per-thread) libcrypto error stack to the message,
-		passed to the constructor.
-	"""
-	def __init__(self,msg):
-		global strings_loaded
-		if not strings_loaded:
-			libcrypto.ERR_load_crypto_strings()
-			strings_loaded = True
-		e=libcrypto.ERR_get_error()
-		m = msg
-		while e != 0:
-			m+="\n\t"+libcrypto.ERR_lib_error_string(e)+":"+\
-			  libcrypto.ERR_func_error_string(e)+":"+\
-			  libcrypto.ERR_reason_error_string(e)
-			e=libcrypto.ERR_get_error()
-		self.args=(m,)
+    """
+    Exception for libcrypto errors. Adds all the info, which can be
+    extracted from internal (per-thread) libcrypto error stack to the message,
+    passed to the constructor.
+    """
+    def __init__(self, msg):
+        global strings_loaded
+        if not strings_loaded:
+            libcrypto.ERR_load_crypto_strings()
+            strings_loaded = True
+        err_code = libcrypto.ERR_get_error()
+        mesg = msg
+        buf = create_string_buffer(128)
+        while err_code != 0:
+            mesg += "\n\t" + libcrypto.ERR_error_string(err_code, buf)
+            err_code = libcrypto.ERR_get_error()
+        super(LibCryptoError, self).__init__(mesg)
 
 def clear_err_stack():
-	"""
-	  Clears internal libcrypto err stack. Call it if you've checked
-	  return code and processed exceptional situation, so subsequent
-	  raising of the LibCryptoError wouldn't list already handled errors
-	"""
-	libcrypto.ERR_clear_error()
-
+    """
+    Clears internal libcrypto err stack. Call it if you've checked
+    return code and processed exceptional situation, so subsequent
+    raising of the LibCryptoError wouldn't list already handled errors
+    """
+    libcrypto.ERR_clear_error()
 
-libcrypto.ERR_lib_error_string.restype=c_char_p
-libcrypto.ERR_func_error_string.restype=c_char_p
-libcrypto.ERR_reason_error_string.restype=c_char_p
+libcrypto.ERR_get_error.restype = c_ulong
+libcrypto.ERR_error_string.restype = c_char_p
+libcrypto.ERR_error_string.argtypes = (c_ulong, c_char_p)