From patchwork Sat Apr 3 19:40:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alejandro Colomar X-Patchwork-Id: 42853 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 7CB6D386102C; Sat, 3 Apr 2021 19:42:01 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 7CB6D386102C DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1617478921; bh=95FmrA4H8nqvZ9OQeG4Dh0kLkA1VLnSc6nqAgxvFvvI=; h=To:Subject:Date:In-Reply-To:References:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc: From; b=RaerZaitZoe6bxLwqkxqY0rqTaey+yFbWnebIsPA03mNxA71bcgE1npw36U14q68P vdtlsvhnbZSs7iE5WfiBzrxwIcG3c11D7QMxOwndiR1nSnMZLHJvLgWrnVQuKgNZbC drQ//hGQuRXnjkgjMc/bvoJZ42CT+BerTP80qYnI= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from mail-wm1-x333.google.com (mail-wm1-x333.google.com [IPv6:2a00:1450:4864:20::333]) by sourceware.org (Postfix) with ESMTPS id A45C13851C2E for ; Sat, 3 Apr 2021 19:41:55 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org A45C13851C2E Received: by mail-wm1-x333.google.com with SMTP id o6so985903wmq.3 for ; Sat, 03 Apr 2021 12:41:55 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=95FmrA4H8nqvZ9OQeG4Dh0kLkA1VLnSc6nqAgxvFvvI=; b=OCFVTp2RB2gMi2EVtuhTXN24khweHPBUIgIfxWE+qjTNDBIFG1ztiDbT4R77mDMvdK fK1lKK0EIpltskZMJs4VIfwBNk3Rl26QsgeDEiROU8fUlsMAFPbJFXcrdGuTbu3ulqwM ScFay/ceQ3jcU2twPi4HO0BCpQ5w+QKGS22TO/dttIKJa2BTDxeVQ6mv6B7iam3t2iBy JfJWYEXeCG2S1cPyVj4lr8Mt7RtesTNrkKEIr/OQmJQTN6qkrFqH5BTwduSEC06fyXZb WR8R+9Tc8izB4/0fR2KI2DVrWjBwq8hna12iHxzoHjc8jYDMUINzmBoYvlkYhwNIfs4l Vgnw== X-Gm-Message-State: AOAM532RcoYfKjepIy5gEPsrOsG6zS7wz4MIdUCidzkNF4qOnaJCxvL/ AU6wKZcEplCKpjySz/yGNV8= X-Google-Smtp-Source: ABdhPJzqDY2H5NrMbSTMjulx42xFm0sZfES2Puw2rd2NfsamGL044rxjbyqq5ENXypVRERUqi9VKTQ== X-Received: by 2002:a7b:c119:: with SMTP id w25mr17764850wmi.127.1617478914870; Sat, 03 Apr 2021 12:41:54 -0700 (PDT) Received: from localhost.localdomain ([170.253.36.171]) by smtp.googlemail.com with ESMTPSA id n1sm25211056wro.36.2021.04.03.12.41.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 03 Apr 2021 12:41:54 -0700 (PDT) To: mtk.manpages@gmail.com Subject: [PATCH v4 10/35] capget.2: Use syscall(SYS_...); for system calls without a wrapper Date: Sat, 3 Apr 2021 21:40:02 +0200 Message-Id: <20210403194026.102818-11-alx.manpages@gmail.com> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20210403194026.102818-1-alx.manpages@gmail.com> References: <20210403194026.102818-1-alx.manpages@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-12.0 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Alejandro Colomar via Libc-alpha From: Alejandro Colomar Reply-To: Alejandro Colomar Cc: Alejandro Colomar , linux-man@vger.kernel.org, libc-alpha@sourceware.org Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" Signed-off-by: Alejandro Colomar --- man2/capget.2 | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/man2/capget.2 b/man2/capget.2 index 6de51b72c..a2d897cc7 100644 --- a/man2/capget.2 +++ b/man2/capget.2 @@ -18,14 +18,17 @@ capget, capset \- set/get capabilities of thread(s) .SH SYNOPSIS .nf -.B #include +.RB " /* Definition of " CAP_* " and " \ +_LINUX_CAPABILITY_* " constants */" +.B #include +.BR "#include " " /* Definition of " SYS_* " constants */" +.B #include .PP -.BI "int capget(cap_user_header_t " hdrp ", cap_user_data_t " datap ); -.BI "int capset(cap_user_header_t " hdrp ", const cap_user_data_t " datap ); +.BI "int syscall(SYS_capget, cap_user_header_t " hdrp , +.BI " cap_user_data_t " datap ); +.BI "int syscall(SYS_capset, cap_user_header_t " hdrp , +.BI " const cap_user_data_t " datap ); .fi -.PP -.IR Note : -There are no glibc wrappers for these system calls; see NOTES. .SH DESCRIPTION These two system calls are the raw kernel interface for getting and setting thread capabilities. @@ -40,7 +43,7 @@ The portable interfaces are .BR cap_set_proc (3) and .BR cap_get_proc (3); -if possible, you should use those interfaces in applications. +if possible, you should use those interfaces in applications; see NOTES. .\" .SS Current details Now that you have been warned, some current kernel details. @@ -239,9 +242,6 @@ No such thread. .SH CONFORMING TO These system calls are Linux-specific. .SH NOTES -Glibc does not provide a wrapper for this system call; call it using -.BR syscall (2). -.PP The portable interface to the capability querying and setting functions is provided by the .I libcap