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Sat, 13 Mar 2021 11:25:52 -0800 (PST) From: Alejandro Colomar To: mtk.manpages@gmail.com Cc: Alejandro Colomar , linux-man@vger.kernel.org, libc-alpha@sourceware.org, linux-kernel@vger.kernel.org, Florian Weimer Subject: [RFC v3 05/17] capget.2: Use syscall(SYS_...); for system calls without a wrapper Date: Sat, 13 Mar 2021 20:25:15 +0100 Message-Id: <20210313192526.350200-6-alx.manpages@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210214133907.157320-1-alx.manpages@gmail.com> References: <20210214133907.157320-1-alx.manpages@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org Signed-off-by: Alejandro Colomar --- man2/capget.2 | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) diff --git a/man2/capget.2 b/man2/capget.2 index ea504c28c..981645f90 100644 --- a/man2/capget.2 +++ b/man2/capget.2 @@ -18,14 +18,15 @@ capget, capset \- set/get capabilities of thread(s) .SH SYNOPSIS .nf -.B #include +.BR "#include " " /* Definition of types and constants */" +.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 +41,7 @@ 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 +240,6 @@ 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 -- 2.30.2