From 22388f8467d2cd0c852333c82e1c508af142a93d Mon Sep 17 00:00:00 2001
From: montag451 <montag451@laposte.net>
Date: Tue, 14 Jan 2014 22:58:17 +0100
Subject: [PATCH] Fix a bug in the checking of the return value of inet_aton

---
 pytun.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/pytun.c b/pytun.c
index 4bcd3cc..0c046d0 100644
--- a/pytun.c
+++ b/pytun.c
@@ -243,7 +243,7 @@ static int pytun_tuntap_set_addr(PyObject* self, PyObject* value, void* d)
     strcpy(req.ifr_name, tuntap->name);
     sin = (struct sockaddr_in*)&req.ifr_addr;
     sin->sin_family = AF_INET;
-    if (inet_aton(addr, &sin->sin_addr) < 0)
+    if (inet_aton(addr, &sin->sin_addr) == 0)
     {
         raise_error("Bad IP address");
         ret = -1;
@@ -315,7 +315,7 @@ static int pytun_tuntap_set_dstaddr(PyObject* self, PyObject* value, void* d)
     strcpy(req.ifr_name, tuntap->name);
     sin = (struct sockaddr_in*)&req.ifr_dstaddr;
     sin->sin_family = AF_INET;
-    if (inet_aton(dstaddr, &sin->sin_addr) < 0)
+    if (inet_aton(dstaddr, &sin->sin_addr) == 0)
     {
         raise_error("Bad IP address");
         ret = -1;
@@ -438,7 +438,7 @@ static int pytun_tuntap_set_netmask(PyObject* self, PyObject* value, void* d)
     strcpy(req.ifr_name, tuntap->name);
     sin = (struct sockaddr_in*)&req.ifr_netmask;
     sin->sin_family = AF_INET;
-    if (inet_aton(netmask, &sin->sin_addr) < 0)
+    if (inet_aton(netmask, &sin->sin_addr) == 0)
     {
         raise_error("Bad IP address");
         ret = -1;