From: Ben Pfaff <blp@nicira.com>
Date: Wed, 21 Jan 2009 00:33:52 +0000 (-0800)
Subject: daemon: Fix bogus error message in read_pidfile() when pidfile is empty.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2aada7074f80d24e5abb22b5d4db6183da36a927;p=openvswitch

daemon: Fix bogus error message in read_pidfile() when pidfile is empty.
---

diff --git a/lib/daemon.c b/lib/daemon.c
index a3b824e6..38cbc7b2 100644
--- a/lib/daemon.c
+++ b/lib/daemon.c
@@ -278,8 +278,13 @@ read_pidfile(const char *pidfile)
     }
 
     if (!fgets(line, sizeof line, file)) {
-        error = errno;
-        VLOG_WARN("%s: read: %s", pidfile, strerror(error));
+        if (ferror(file)) {
+            error = errno;
+            VLOG_WARN("%s: read: %s", pidfile, strerror(error));
+        } else {
+            error = ESRCH;
+            VLOG_WARN("%s: read: unexpected end of file", pidfile);
+        }
         goto error;
     }