[PATCH] Add posix_spawn_file_actions_addclosefrom_np

To: tech-kern%netbsd.org@localhost
Subject: [PATCH] Add posix_spawn_file_actions_addclosefrom_np
From: Chris Hanson <cmhanson%eschatologist.net@localhost>
Date: Mon, 20 Apr 2026 23:24:10 -0700

Attached is a patch to add posix_spawn_file_actions_addclosefrom_np with equivalent behavior to FreeBSD, Solaris, and Linux. I generated it with my local git branch of -current, but it should be trivially portable to 11 and plenty safe to bring there, and I can confirm it’s also trivially portable to 10.1. The patch includes an updated libc test case too, and appropriate man page updates.

  -- Chris

Attachment: 0001-Add-posix_spawn_file_actions_addclosefrom_np.patch
Description: Binary data

References:
- Which way for posix_spawn close-on-exec improvements?
  - From: Chris Hanson
- Re: Which way for posix_spawn close-on-exec improvements?
  - From: Martin Husemann
- Re: Which way for posix_spawn close-on-exec improvements?
  - From: Chris Hanson
- Re: Which way for posix_spawn close-on-exec improvements?
  - From: Chris Hanson
- Re: Which way for posix_spawn close-on-exec improvements?
  - From: Chris Hanson
- Re: Which way for posix_spawn close-on-exec improvements?
  - From: Roland Illig
- Re: Which way for posix_spawn close-on-exec improvements?
  - From: Chris Hanson

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