Make xopen() skip stdin/stdout/stderr, add xopen_stdio() if you want stdout,

add xopenro() that takes one argument and understands "-" means stdin,
and switch over lots of users.

1 files changed, 1 insertions, 2 deletions

diff --git a/toys/other/nsenter.c b/toys/other/nsenter.c
index 13757280..78a9d91a 100644
--- a/toys/other/nsenter.c
+++ b/toys/other/nsenter.c
@@ -152,8 +152,7 @@ void unshare_main(void)
           filename = toybuf;
         }
 
-        if (setns(fd = xopen(filename, O_RDONLY), flags[i]))
-          perror_exit("setns");
+        if (setns(fd = xopenro(filename), flags[i])) perror_exit("setns");
         close(fd);
       }
       nsnames += strlen(nsnames)+1;