From 475d15aaff9d8eaef8574ab4962c83031c375e49 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 28 Jul 2008 23:27:47 +0200
Subject: save/restore errno where applicable

---
 libdaemon/dpid.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'libdaemon')

diff --git a/libdaemon/dpid.c b/libdaemon/dpid.c
index 145cf50..510e24a 100644
--- a/libdaemon/dpid.c
+++ b/libdaemon/dpid.c
@@ -117,8 +117,10 @@ pid_t daemon_pid_file_is_running(void) {
         goto finish;
 
     if ((l = read(fd, txt, sizeof(txt)-1)) < 0) {
+        int saved_errno = errno;
         daemon_log(LOG_WARNING, "read(): %s", strerror(errno));
         unlink(fn);
+        errno = saved_errno;
         goto finish;
     }
 
@@ -152,8 +154,8 @@ finish:
         int saved_errno = errno;
         if (locked >= 0)
             lock_file(fd, 0);
-        errno = saved_errno;
         close(fd);
+        errno = saved_errno;
     }
 
     return ret;
-- 
cgit