From 863bd720bd443cad848cece4f24bcc7a5d07238c Mon Sep 17 00:00:00 2001
From: Alan Somers <asomers@gmail.com>
Date: Tue, 1 Jan 2019 23:11:07 -0700
Subject: Fix invalid errno check in netifaces.gateways()

Fixes #28
---
 netifaces.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/netifaces.c b/netifaces.c
index 428ea84..fa18add 100644
--- a/netifaces.c
+++ b/netifaces.c
@@ -2007,7 +2007,7 @@ gateways (PyObject *self)
     buffer = ptr;
 
     ret = sysctl (mib, 6, buffer, &len, 0, 0);
-  } while (ret != 0 || errno == ENOMEM || errno == EINTR);
+  } while (ret != 0 && (errno == ENOMEM || errno == EINTR));
 
   if (ret < 0) {
     PyErr_SetFromErrno (PyExc_OSError);
-- 
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