diff -Naur python/netsnmp/client.py python.new/netsnmp/client.py
--- python/netsnmp/client.py		2009-04-23 22:21:53.000000000 +0600
+++ python.new/netsnmp/client.py	2014-12-21 17:49:14.000000000 +0500
@@ -2,6 +2,7 @@
 import string
 import re
 import types
+from sys import stderr
 
 # control verbosity of error output
 verbose = 1
diff -Naur python/netsnmp/client_intf.c python.new/netsnmp/client_intf.c
--- python/netsnmp/client_intf.c	2010-02-10 15:04:31.000000000 +0500
+++ python.new/netsnmp/client_intf.c	2014-12-21 18:10:26.677816256 +0500
@@ -979,14 +979,20 @@
 
       case TYPE_IPADDR:
         vars->type = ASN_IPADDRESS;
-        vars->val.integer = (long *)malloc(sizeof(long));
+        in_addr_t addr = 0;
         if (val)
-            *(vars->val.integer) = inet_addr(val);
+            addr = inet_addr(val);
+
+        if (addr && (addr != -1)) {
+            vars->val.string = malloc(sizeof(in_addr_t));
+            vars->val_len = sizeof(in_addr_t);
+            memcpy(vars->val.string, &addr, sizeof(in_addr_t));
+        }
         else {
             ret = FAILURE;
-            *(vars->val.integer) = 0;
+            vars->val.string = (u_char*)strdup("");
+            vars->val_len = 0;
         }
-        vars->val_len = sizeof(long);
         break;
 
       case TYPE_OBJID:
@@ -2426,6 +2432,7 @@
 	  goto done;
 	}
 	memcpy(tmp_val_str, val, tmplen);
+        tmp_val_str[tmplen] = '\0';
 	if (type==TYPE_INTEGER && use_enums && tp && tp->enums) {
 	  for(ep = tp->enums; ep; ep = ep->next) {
 	    if (val && !strcmp(ep->label, val)) {