From ac181b5c3cb8b243b1476919e5bf2142eb1082b7 Mon Sep 17 00:00:00 2001
From: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Date: Mon, 27 Nov 2017 23:48:57 -0200
Subject: [PATCH] utils.h: Avoid duplicated sethostname implementation

Move duplicated implementatin of sethostname from conf.c and
lxc_unshare.c to utils.h

Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
---
 src/lxc/conf.c              | 13 -------------
 src/lxc/tools/lxc_unshare.c | 14 --------------
 src/lxc/utils.h             | 13 +++++++++++++
 3 files changed, 13 insertions(+), 27 deletions(-)

diff --git a/src/lxc/conf.c b/src/lxc/conf.c
index 2d2a3fca2..ae30b5b87 100644
--- a/src/lxc/conf.c
+++ b/src/lxc/conf.c
@@ -122,19 +122,6 @@ static int pivot_root(const char * new_root, const char * put_old)
 extern int pivot_root(const char * new_root, const char * put_old);
 #endif
 
-/* Define sethostname() if missing from the C library */
-#ifndef HAVE_SETHOSTNAME
-static int sethostname(const char * name, size_t len)
-{
-#ifdef __NR_sethostname
-	return syscall(__NR_sethostname, name, len);
-#else
-	errno = ENOSYS;
-	return -1;
-#endif
-}
-#endif
-
 #ifndef MS_PRIVATE
 #define MS_PRIVATE (1<<18)
 #endif
diff --git a/src/lxc/tools/lxc_unshare.c b/src/lxc/tools/lxc_unshare.c
index 25af97119..1c790737b 100644
--- a/src/lxc/tools/lxc_unshare.c
+++ b/src/lxc/tools/lxc_unshare.c
@@ -32,7 +32,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/socket.h>
-#include <sys/syscall.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <unistd.h>
@@ -45,19 +44,6 @@
 #include "network.h"
 #include "utils.h"
 
-/* Define sethostname() if missing from the C library */
-#ifndef HAVE_SETHOSTNAME
-static int sethostname(const char * name, size_t len)
-{
-#ifdef __NR_sethostname
-return syscall(__NR_sethostname, name, len);
-#else
-errno = ENOSYS;
-return -1;
-#endif
-}
-#endif
-
 lxc_log_define(lxc_unshare_ui, lxc);
 
 struct my_iflist
diff --git a/src/lxc/utils.h b/src/lxc/utils.h
index 94646326f..5273203cf 100644
--- a/src/lxc/utils.h
+++ b/src/lxc/utils.h
@@ -120,6 +120,19 @@ static inline int setns(int fd, int nstype)
 }
 #endif
 
+/* Define sethostname() if missing from the C library */
+#ifndef HAVE_SETHOSTNAME
+static int sethostname(const char * name, size_t len)
+{
+#ifdef __NR_sethostname
+return syscall(__NR_sethostname, name, len);
+#else
+errno = ENOSYS;
+return -1;
+#endif
+}
+#endif
+
 /* Define unshare() if missing from the C library */
 #ifndef HAVE_UNSHARE
 static inline int unshare(int flags)
-- 
2.47.2