From nobody Thu Jan 1 18:05:48 2026 X-Original-To: dev-commits-src-branches@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4dhvrY2y1Qz6MVkb for ; Thu, 01 Jan 2026 18:05:49 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R13" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dhvrY010mz3YG1 for ; Thu, 01 Jan 2026 18:05:49 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1767290749; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=2xF7c2/FEuvoTGpn1+Z2O2bFssPLvlQssHli9oh5kls=; b=Bk5rMROHtg+IzDDkTfbYlavsebj6fuSM9D8RlDRxS65oRTUNIeNQHUPubXnbENjZVS9102 fL3lNz1m3sE3bRdGsAoPnqHcCo/92WTLCJa4yINbPi/NHtW0lZEauRpk7BSgUWysM4aJIf NrkhHWL1DiGMkGWSUfYNxOzuGIFHgdBNkllnZ4KcU4/Y9Fb05oqhcVEiV5bVDzqErCect/ E1egXkVROBKKuiOeW12OQDvT9Uh/BHlj/Dq3MKvQuieIiOe4KCf3kT93zVlO3r6dqlCJ+d V/yjtXMWgBM9bRvN5+SWuSiQKzGHNrGy2lzxozvgCjhDrYUvq6IjqFuRQmk9GA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1767290749; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=2xF7c2/FEuvoTGpn1+Z2O2bFssPLvlQssHli9oh5kls=; b=nfK6hMUZvxX/ngrJp2Y6Gsk5OpWYwqpNhyGJoDTeK0bP6nZA7iBXHP9P5VvsmHQxW3KtuZ MLoW3nKUpCJ15sS9V18aMi5SK98rZCsny501AHQf3kSR71gKb7LdprNLUlV9c868avLYu/ efT89fhJXKxqyHwIk2IAy+3rMm0uMHZR25OhxvgnmTb47WE88Csqi0bMpqSGu8lcfEGYPp nLg4JjG1Tjs3e6RxPlopFfKhMQqtah5p8uRfuE4ShNjmkx+PsW4PO21oxbPqSJ5k4AldVC slThz35wuuZEOKBuMDUd7vms377ujYuNrNOtpuKKwk70qzK5wp0Xsx+B8ehH2A== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1767290749; a=rsa-sha256; cv=none; b=u7SpviYQvo8imCoRkm0xNeaOwthk8o9y7HGCeL+ydp6GgOc+jUPsAxRMb/KTQIlLP+EXiz R85MUSir09/xyJCfTqt8lmm2W6tbbbiBvoFjGfxtBBX/2b5IED9up1R8KaQWU73GKctwjE SOBMGJe7B4aECNH5KxDbhOeg5PZOh5/m+fs2Q3D+CxCEcwZOVLAkoEnvqOrdcjhKkJDJYD chbQRLSHdJuOZ3ZfZsAPEWZCsog5d4RWgl8VtuvnFMZq1lGydp3onEi9a4zvReCARJA9dy na/nrgF9kxt0PAYcwZUBHoRAoDAehNFF/evTOjx2jLBEZ7qb2eO4TnkncTiIIg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4dhvrX6YljzkB9 for ; Thu, 01 Jan 2026 18:05:48 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 36346 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Thu, 01 Jan 2026 18:05:48 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Cc: Rick Parrish From: Alexander Ziaee Subject: git: 992f994bb71e - stable/15 - librt/mq_getfd_np.3: Initial manual page List-Id: Commits to the stable branches of the FreeBSD src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-branches List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-branches@freebsd.org Sender: owner-dev-commits-src-branches@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: ziaee X-Git-Repository: src X-Git-Refname: refs/heads/stable/15 X-Git-Reftype: branch X-Git-Commit: 992f994bb71ec61e893457bfc2ffc02dfd8c0b50 Auto-Submitted: auto-generated Date: Thu, 01 Jan 2026 18:05:48 +0000 Message-Id: <6956b77c.36346.5072db67@gitrepo.freebsd.org> The branch stable/15 has been updated by ziaee: URL: https://cgit.FreeBSD.org/src/commit/?id=992f994bb71ec61e893457bfc2ffc02dfd8c0b50 commit 992f994bb71ec61e893457bfc2ffc02dfd8c0b50 Author: Rick Parrish AuthorDate: 2025-12-18 22:12:32 +0000 Commit: Alexander Ziaee CommitDate: 2026-01-01 18:05:04 +0000 librt/mq_getfd_np.3: Initial manual page The mq_getfd_np function appeared in FreeBSD 11 with no documentation. This function dereferences the mqd_t as a pointer to an int. Relnotes: yes MFC after: 3 days Reviewed by: kib (previous), markj, ziaee Differential Revision: https://reviews.freebsd.org/D43947 (cherry picked from commit ca2413d216197fd55f9363d6f65c641ff1aa3ec5) --- lib/librt/Makefile | 2 ++ lib/librt/mq_getfd_np.3 | 57 +++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 59 insertions(+) diff --git a/lib/librt/Makefile b/lib/librt/Makefile index c755bb123c73..1189636d0416 100644 --- a/lib/librt/Makefile +++ b/lib/librt/Makefile @@ -24,4 +24,6 @@ SYMBOL_MAPS=${.CURDIR}/Symbol.map HAS_TESTS= SUBDIR.${MK_TESTS}+= tests +MAN= mq_getfd_np.3 + .include diff --git a/lib/librt/mq_getfd_np.3 b/lib/librt/mq_getfd_np.3 new file mode 100644 index 000000000000..44c29fbdbf73 --- /dev/null +++ b/lib/librt/mq_getfd_np.3 @@ -0,0 +1,57 @@ +.\" +.\" Copyright (c) 2024 Rick Parrish +.\" +.\" SPDX-License-Identifier: BSD-2-Clause +.\" +.Dd December 18, 2025 +.Dt MQ_GETFD_NP 3 +.Os +.Sh NAME +.Nm mq_getfd_np +.Nd get a file descriptor for an open message queue descriptor +.Sh SYNOPSIS +.Lb librt +.In mqueue.h +.Ft int +.Fn mq_getfd_np "mqd_t mqd" +.Sh DESCRIPTION +The +.Nm +function retrieves the underlying file descriptor +from the given message queue descriptor returned from +.Xr mq_open 2 . +The file descriptor is used by other functions +to refer to that message queue. +The +.Fa mqd +argument must be an open message queue descriptor. +.Sh IMPLEMENTATION NOTES +.Fx +implements retrieval or alteration of message queue attributes +based on the file descriptor. +The open file descriptor is copied into a child after +.Xr fork 2 . +The +.Xr fstat 2 , +.Xr fchmod 2 , +and +.Xr fchown 2 +system calls are supported for the file descriptor. +.Pp +The file descriptor is safe to use so long as +the message queue descriptor remains open. +.Sh RETURN VALUES +Upon successful completion, the function returns a file descriptor. +.Sh ERRORS +The +.Nm +function does not return any errors. +.Sh SEE ALSO +.Xr mq_close 2 , +.Xr mq_open 2 , +.Xr mqueuefs 4 +.Sh HISTORY +Support for the +.Nm +function first appeared in +.Fx 11.0 .