From ad413c3165bfe6c5296133473c2aa9c626704f75 Mon Sep 17 00:00:00 2001
From: Helmut Grohne <helmut@subdivi.de>
Date: Fri, 17 May 2024 10:51:22 +0200
Subject: populate_dev: also create std{in,out,err} symlinks

When booting systemd, it'll create these symlinks, but when doing an
application container, nothing does this and we risk creating regular
files there.
---
 linuxnamespaces/__init__.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/linuxnamespaces/__init__.py b/linuxnamespaces/__init__.py
index e305b4e..54a6883 100644
--- a/linuxnamespaces/__init__.py
+++ b/linuxnamespaces/__init__.py
@@ -368,7 +368,11 @@ def populate_dev(
     newdev = AtLocation(newroot) / "dev"
     directories = {"pts"}
     files = set()
-    symlinks = {}
+    symlinks = {
+        "stdin": "/proc/self/fd/0",
+        "stdout": "/proc/self/fd/1",
+        "stderr": "/proc/self/fd/2",
+    }
     bind_mounts: dict[str, AtLocation] = {}
     with contextlib.ExitStack() as exitstack:
         for fn in "null zero full random urandom tty".split():
-- 
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