win32: ash: stay away from fcntl(F_DUPFD)

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/shell/ash.c b/shell/ash.c
index a0c22689f..007d501f9 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -3715,7 +3715,7 @@ setjobctl(int on)
                                 if (--fd < 0)
                                         goto out;
                 }
-                fd = fcntl(fd, F_DUPFD, 10);
+                fd = copyfd(fd, 10);
                 if (ofd >= 0)
                         close(ofd);
                 if (fd < 0)
@@ -5270,7 +5270,7 @@ redirect(union node *redir, int flags)
 #endif
                 if (need_to_remember(sv, fd)) {
                         /* Copy old descriptor */
-                        i = fcntl(fd, F_DUPFD, 10);
+                        i = copyfd(fd, 10);
 /* You'd expect copy to be CLOEXECed. Currently these extra "saved" fds
  * are closed in popredir() in the child, preventing them from leaking
  * into child. (popredir() also cleans up the mess in case of failures)