diff --git a/src/varnishapi.py b/src/varnishapi.py
index e6d2abb..4d24d05 100644
--- a/src/varnishapi.py
+++ b/src/varnishapi.py
@@ -270,10 +270,36 @@ def __init__(self, lib):
 
         self.VSM_Error = lib.VSM_Error
         self.VSM_Error.restype = c_char_p
+        self.VSM_Error.argtypes = [c_void_p]
+
+        self.VSM_New = lib.VSM_New
+        self.VSM_New.restype = c_void_p
+
+        self.VSM_ResetError = lib.VSM_ResetError
+        self.VSM_ResetError.argtypes = [c_void_p]
+
+        self.VSM_Delete = lib.VSM_Delete
+        self.VSM_Delete.argtypes = [c_void_p]
+
+        self.VSM_Open = lib.VSM_Open
+        self.VSM_Open.restype = c_int
+        self.VSM_Open.argtypes = [c_void_p]
+
+        self.VSM_n_Arg = lib.VSM_n_Arg
+        self.VSM_n_Arg.restype = c_int
+        self.VSM_n_Arg.argtypes = [c_void_p, c_char_p]
+
+        self.VSM_N_Arg = lib.VSM_N_Arg
+        self.VSM_N_Arg.restype = c_int
+        self.VSM_N_Arg.argtypes = [c_void_p, c_char_p]
 
         self.VSM_Name = lib.VSM_Name
         self.VSM_Name.restype = c_char_p
+        self.VSM_Name.argtypes = [c_void_p]
 
+        self.VSC_Iter = lib.VSC_Iter
+        self.VSC_Iter.argtypes = [c_void_p, c_void_p, VSC_iter_f, c_void_p]
+        
         self.VSLQ_New = lib.VSLQ_New
         self.VSLQ_New.restype = c_void_p
         self.VSLQ_New.argtypes = [c_void_p, POINTER(c_void_p), c_int, c_char_p]
@@ -409,7 +435,8 @@ def __init__(self, sopath='libvarnishapi.so.1'):
         self.lva = LIBVARNISHAPI13(self.lib)
         self.defi = VarnishAPIDefine40()
         self._cb = None
-        self.vsm = self.lib.VSM_New()
+        self.vsm = self.lva.VSM_New()
+        print "vsm", self.vsm
         self.d_opt = 0
 
         VSLTAGS = c_char_p * 256
@@ -440,15 +467,15 @@ def __init__(self, sopath='libvarnishapi.so.1'):
     def ArgDefault(self, op, arg):
         if op == "n":
             # Set Varnish instance name.
-            i = self.lib.VSM_n_Arg(self.vsm, arg)
+            i = self.lva.VSM_n_Arg(self.vsm, arg)
             if i <= 0:
-                self.error = "%s" % self.lib.VSM_Error(self.vsm).rstrip()
+                self.error = "%s" % self.lva.VSM_Error(self.vsm).rstrip()
                 return(i)
         elif op == "N":
             # Set VSM file.
-            i = self.lib.VSM_N_Arg(self.vsm, arg)
+            i = self.lva.VSM_N_Arg(self.vsm, arg)
             if i <= 0:
-                self.error = "%s" % self.lib.VSM_Error(self.vsm).rstrip()
+                self.error = "%s" % self.lva.VSM_Error(self.vsm).rstrip()
                 return(i)
             self.d_opt = 1
         return(None)
@@ -461,8 +488,8 @@ def __init__(self, opt='', sopath='libvarnishapi.so.1'):
         self.name = ''
         if len(opt) > 0:
             self.__setArg(opt)
-        if self.lib.VSM_Open(self.vsm):
-            self.error = "Can't open VSM file (%s)" % self.lib.VSM_Error(
+        if self.lva.VSM_Open(self.vsm):
+            self.error = "Can't open VSM file (%s)" % self.lva.VSM_Error(
                 self.vsm).rstrip()
         else:
             self.name = self.lva.VSM_Name(self.vsm)
@@ -473,7 +500,7 @@ def __setArg(self, opt):
         for o in opts:
             op = o[0].lstrip('-')
             arg = o[1]
-            self.__Arg(op, arg)
+            self.__Arg(op, arg.encode("utf8", "replace"))
 
         if error:
             self.error = error
@@ -509,12 +536,12 @@ def _getstat(self, priv, pt):
 
     def getStats(self):
         self._buf = {}
-        self.lib.VSC_Iter(self.vsm, None, VSC_iter_f(self._getstat), None)
+        self.lva.VSC_Iter(self.vsm, None, VSC_iter_f(self._getstat), None)
         return self._buf
 
     def Fini(self):
         if self.vsm:
-            self.lib.VSM_Delete(self.vsm)
+            self.lva.VSM_Delete(self.vsm)
             self.vsm = 0
 
 
@@ -590,8 +617,8 @@ def __Setup(self):
         if self.__r_arg:
             c = self.lva.VSL_CursorFile(self.vsl, self.__r_arg, 0)
         else:
-            if self.lib.VSM_Open(self.vsm):
-                self.error = "Can't open VSM file (%s)" % self.lib.VSM_Error(
+            if self.lva.VSM_Open(self.vsm):
+                self.error = "Can't open VSM file (%s)" % self.lva.VSM_Error(
                     self.vsm).decode("utf8", "replace").rstrip()
                 return(0)
             self.name = self.lva.VSM_Name(self.vsm)
@@ -623,15 +650,15 @@ def __cbMain(self, cb, priv=None):
         if not self.vslq:
             # Reconnect VSM
             time.sleep(0.1)
-            if self.lib.VSM_Open(self.vsm):
-                self.lib.VSM_ResetError(self.vsm)
+            if self.lva.VSM_Open(self.vsm):
+                self.lva.VSM_ResetError(self.vsm)
                 return(1)
             c = self.lva.VSL_CursorVSM(
                 self.vsl, self.vsm,
                 self.defi.VSL_COPT_TAIL | self.defi.VSL_COPT_BATCH)
             if not c:
-                self.lib.VSM_ResetError(self.vsm)
-                self.lib.VSM_Close(self.vsm)
+                self.lva.VSM_ResetError(self.vsm)
+                self.lva.VSM_Close(self.vsm)
                 return(1)
             z = cast(c, c_void_p)
             self.vslq = self.lva.VSLQ_New(
@@ -653,7 +680,7 @@ def Dispatch(self, cb, priv=None):
         self.vslq = None
         if i == -2:
             self.error = "Log abandoned"
-            self.lib.VSM_Close(self.vsm)
+            self.lva.VSM_Close(self.vsm)
         if i < -2:
             self.error = "Log overrun"
         return i
@@ -666,7 +693,7 @@ def Fini(self):
             self.lib.VSL_Delete(self.vsl)
             self.vsl = 0
         if self.vsm:
-            self.lib.VSM_Delete(self.vsm)
+            self.lva.VSM_Delete(self.vsm)
             self.vsm = 0
 
     def __VSL_Arg(self, opt, arg='\0'):