File 0046-util.c-check-if-return-value-from-ttyname_r-is-0-ins.patch of Package systemd-208

From 27373e442747010dfc195296c0705f67e905a611 Mon Sep 17 00:00:00 2001
From: Thomas Hindoe Paaboel Andersen <phomes@gmail.com>
Date: Sat, 30 Nov 2013 23:45:31 +0100
Subject: [PATCH] util.c: check if return value from ttyname_r is > 0 instead
 of != 0

We must return a negative error code from getttyname_malloc but
that would not be the case if ttyname_r returned a negative value.

ttyname_r should only return EBADF, ENOTTY, or ERANGE so it should
be safe to change.
---
 src/shared/util.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git src/shared/util.c src/shared/util.c
index 38134ae..206fc80 100644
--- src/shared/util.c
+++ src/shared/util.c
@@ -2501,7 +2501,7 @@ int getttyname_malloc(int fd, char **r) {
         assert(r);
 
         k = ttyname_r(fd, path, sizeof(path));
-        if (k != 0)
+        if (k > 0)
                 return -k;
 
         char_array_0(path);
-- 
1.7.9.2