ftpd: do not use root_fd if we are not in chroot

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/networking/ftpd.c b/networking/ftpd.c
index e7cf5f431..2d2a3a44c 100644
--- a/networking/ftpd.c
+++ b/networking/ftpd.c
@@ -1173,11 +1173,14 @@ int ftpd_main(int argc UNUSED_PARAM, char **argv)
                 applet_name = xasprintf("%s[%u]", applet_name, (int)getpid());
 
 #if !BB_MMU
-        G.root_fd = xopen("/", O_RDONLY | O_DIRECTORY);
-        close_on_exec_on(G.root_fd);
+        G.root_fd = -1;
 #endif
         argv += optind;
         if (argv[0]) {
+#if !BB_MMU
+                G.root_fd = xopen("/", O_RDONLY | O_DIRECTORY);
+                close_on_exec_on(G.root_fd);
+#endif
                 xchroot(argv[0]);
         }