importd: Always specify file unpacked by tar

Signed-off-by: zhaoxiaohu <zhaoxiaohu@kuaishou.com>

backport-importd-Always-specify-file-unpacked-by-tar.patch

@@ -0,0 +1,42 @@
+From 3a609cf64f74f78697ef1ad05d85f9c0ef07f87c Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Arsen=20Arsenovi=C4=87?= <arsen@gentoo.org>
+Date: Sat, 28 Jan 2023 22:32:41 +0100
+Subject: [PATCH] importd: Always specify file unpacked by tar
+
+Despite popular belief, the default file extracted by GNU tar is not stdin.  It
+is the value of the TAPE environment variable, falling back on a compile-time
+constant.  On my system, the default value is /dev/full, which causes tar to
+just spin forever due to --ignore-zeros.  Always specifying this flag is the
+safe thing to do.
+
+  ~$ tar --show-defaults
+  --format=gnu -f/dev/full -b20 --quoting-style=escape
+  --rmt-command=/usr/sbin/grmt
+
+See also: ``(tar)defaults'', available via Info viewers, and in HTML form at:
+https://www.gnu.org/s/tar/manual/html_node/defaults.html
+
+Reference: https://github.com/systemd/systemd/pull/26243/commits/f28d94106d6ed01420079f1034e332193c12d6dd
+
+Signed-off-by: zhaoxiaohu <zhaoxiaohu@kuaishou.com>
+Signed-off-by: yuwang <yuwang@kuaishou.com>
+---
+ src/import/import-common.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/src/import/import-common.c b/src/import/import-common.c
+index f77564c..70a0a73 100644
+--- a/src/import/import-common.c
++++ b/src/import/import-common.c
+@@ -97,6 +97,8 @@ int import_fork_tar_x(const char *path, pid_t *ret) {
+                        "--numeric-owner",
+                        "-C", path,
+                        "-px",
++                       "-pxf",
++                       "-",
+                        "--xattrs",
+                        "--xattrs-include=*",
+                        use_selinux ? "--selinux" : "--no-selinux",
+-- 
+2.33.0
+