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authorAlejandro Colomar <alx@kernel.org>2024-05-28 01:06:54 +0200
committerAlejandro Colomar <alx@kernel.org>2024-05-30 15:31:13 +0200
commitb0d95a880d16b1f684b7a03cee25b5700781c703 (patch)
tree1504ecd8eed923542f2bc001d5ed0aa0cb8c205e
parente86ff924dbd313e450b34df526bc0c58dd624062 (diff)
downloadman-pages-b0d95a880d16b1f684b7a03cee25b5700781c703.tar.gz
PR_CAP_AMBIENT.2const, PR_CAP_AMBIENT_CLEAR_ALL.2const: Split PR_CAP_AMBIENT_CLEAR_ALL from PR_CAP_AMBIENT(2const)
Signed-off-by: Alejandro Colomar <alx@kernel.org>
-rw-r--r--man/man2const/PR_CAP_AMBIENT.2const13
-rw-r--r--man/man2const/PR_CAP_AMBIENT_CLEAR_ALL.2const39
2 files changed, 44 insertions, 8 deletions
diff --git a/man/man2const/PR_CAP_AMBIENT.2const b/man/man2const/PR_CAP_AMBIENT.2const
index 2c4819e2ff..2b872a1f23 100644
--- a/man/man2const/PR_CAP_AMBIENT.2const
+++ b/man/man2const/PR_CAP_AMBIENT.2const
@@ -15,12 +15,12 @@ Standard C library
.nf
.B #include <sys/prctl.h>
.P
-.BI "int prctl(PR_CAP_AMBIENT, long " sub-op ", long " cap ", 0L, 0L);"
+.BI "int prctl(PR_CAP_AMBIENT, long " op ", ...);"
.fi
.SH DESCRIPTION
Reads or changes the ambient capability set of the calling thread,
according to the value of
-.IR sub-op ,
+.IR op ,
which must be one of the following:
.TP
.B PR_CAP_AMBIENT_RAISE
@@ -28,12 +28,8 @@ which must be one of the following:
.B PR_CAP_AMBIENT_LOWER
.TQ
.B PR_CAP_AMBIENT_IS_SET
-.TP
+.TQ
.B PR_CAP_AMBIENT_CLEAR_ALL
-All capabilities will be removed from the ambient capability set.
-This operation requires setting
-.I cap
-to zero.
.SH RETURN VALUE
On success,
a nonnegative value is returned.
@@ -43,7 +39,7 @@ is set to indicate the error.
.SH ERRORS
.TP
.B EINVAL
-.I sub-op
+.I op
is not a valid value.
.SH VERSIONS
Higher-level interfaces layered on top of the above operations are
@@ -64,6 +60,7 @@ Linux 4.3.
.BR PR_CAP_AMBIENT_RAISE (2const),
.BR PR_CAP_AMBIENT_LOWER (2const),
.BR PR_CAP_AMBIENT_IS_SET (2const),
+.BR PR_CAP_AMBIENT_CLEAR_ALL (2const),
.BR libcap (3),
.BR cap_get_ambient (3),
.BR cap_set_ambient (3),
diff --git a/man/man2const/PR_CAP_AMBIENT_CLEAR_ALL.2const b/man/man2const/PR_CAP_AMBIENT_CLEAR_ALL.2const
new file mode 100644
index 0000000000..f31971812d
--- /dev/null
+++ b/man/man2const/PR_CAP_AMBIENT_CLEAR_ALL.2const
@@ -0,0 +1,39 @@
+.\" Copyright 2015, Michael Kerrisk <mtk.manpages@gmail.com>
+.\" Copyright 2024, Alejandro Colomar <alx@kernel.org>
+.\"
+.\" SPDX-License-Identifier: Linux-man-pages-copyleft
+.\"
+.TH PR_CAP_AMBIENT_CLEAR_ALL 2const (date) "Linux man-pages (unreleased)"
+.SH NAME
+PR_CAP_AMBIENT_CLEAR_ALL
+\-
+clear the ambient capability set of the calling thread
+.SH LIBRARY
+Standard C library
+.RI ( libc ", " \-lc )
+.SH SYNOPSIS
+.nf
+.B #include <sys/prctl.h>
+.P
+.B int prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_CLEAR_ALL, 0L, 0L, 0L);
+.fi
+.SH DESCRIPTION
+All capabilities will be removed from the ambient capability set.
+.SH RETURN VALUE
+On success,
+0 is returned.
+On error, \-1 is returned, and
+.I errno
+is set to indicate the error.
+.SH VERSIONS
+See
+.BR PR_CAP_AMBIENT (2const).
+.SH STANDARDS
+Linux.
+.SH HISTORY
+Linux 4.3.
+.\" commit 58319057b7847667f0c9585b9de0e8932b0fdb08
+.SH SEE ALSO
+.BR prctl (2),
+.BR PR_CAP_AMBIENT (2const),
+.BR libcap (3)