arping: fix iface name in error messages

arping: interface eth0 not found: No such device
                  ^^^^

This is because error template is formed before parsing command line arguments,
so it always uses default interface name "eth0".

Signed-off-by: Alexander Korolkov <alexander.korolkov@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/networking/arping.c b/networking/arping.c
index a4421edcb..dbfd75ef5 100644
--- a/networking/arping.c
+++ b/networking/arping.c
@@ -284,7 +284,6 @@ int arping_main(int argc UNUSED_PARAM, char **argv)
         // Need to remove SUID_NEVER from applets.h for this to work
         //xsetuid(getuid());
 
-        err_str = xasprintf("interface %s %%s", device);
         {
                 unsigned opt;
                 char *str_timeout;
@@ -302,7 +301,7 @@ int arping_main(int argc UNUSED_PARAM, char **argv)
         }
 
         target = argv[optind];
-
+        err_str = xasprintf("interface %s %%s", device);
         xfunc_error_retval = 2;
 
         {