From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 16 Aug 2010 19:25:09 +0000 (+0200)
Subject: util: properly detect ttyname_r() failing
X-Git-Tag: v8~75
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=618e02c7b7f8e11fdb954a019342d745937baf55;p=systemd

util: properly detect ttyname_r() failing
---

diff --git a/src/util.c b/src/util.c
index bc227f52..3bcce2f0 100644
--- a/src/util.c
+++ b/src/util.c
@@ -2531,11 +2531,12 @@ char* getlogname_malloc(void) {
 
 int getttyname_malloc(char **r) {
         char path[PATH_MAX], *p, *c;
+        int k;
 
         assert(r);
 
-        if (ttyname_r(STDIN_FILENO, path, sizeof(path)) < 0)
-                return -errno;
+        if ((k = ttyname_r(STDIN_FILENO, path, sizeof(path))) != 0)
+                return -k;
 
         char_array_0(path);