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Sun, 04 Apr 2021 04:59:39 -0700 (PDT) From: Alejandro Colomar To: mtk.manpages@gmail.com Cc: Alejandro Colomar , linux-man@vger.kernel.org, libc-alpha@sourceware.org Subject: [PATCH v5 10/35] capget.2: Use syscall(SYS_...); for system calls without a wrapper Date: Sun, 4 Apr 2021 13:58:23 +0200 Message-Id: <20210404115847.78166-11-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 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org 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 -- 2.31.0