Revert "udev: don't close std{in,out,err}"

This reverts commit b2399d9b7222abe7db8ab4bc16e0efe3ccae4c42.

This solves issue #108.  While upstream also reverted this commit,
they did so using functions in terminal-util.c.  We could import
that file and those functions but for such a small commit, its not
worth it.   We may do so at some future time if there are further
gains.  See:

https://github.com/systemd/systemd/commit/40e749b59ba49fb97c1f45859debe2a82bc9c9ef

Signed-off-by: Anthony G. Basile <blueness@gentoo.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/src/udev/udevd.c b/src/udev/udevd.c
index 6cfb2bcfcd..f4076b1357 100644
--- a/src/udev/udevd.c
+++ b/src/udev/udevd.c
@@ -1277,6 +1277,18 @@ int main(int argc, char *argv[]) {
 
         udev_list_node_init(&event_list);
 
+        if (!arg_debug) {
+                int fd;
+
+                fd = open("/dev/null", O_RDWR);
+                if (fd >= 0) {
+                        dup2(fd, STDIN_FILENO);
+                        dup2(fd, STDOUT_FILENO);
+                        dup2(fd, STDERR_FILENO);
+                        close(fd);
+                }
+        }
+
         fd_inotify = udev_watch_init(udev);
         if (fd_inotify < 0) {
                 r = log_error_errno(ENOMEM, "error initializing inotify");