--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/share/man/man3/keyctl_unlink.3	Tue Mar 18 16:23:26 2025 -0400
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+.\"
+.\" Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
+.\" Written by David Howells (dhowells@redhat.com)
+.\"
+.\" This program is free software; you can redistribute it and/or
+.\" modify it under the terms of the GNU General Public License
+.\" as published by the Free Software Foundation; either version
+.\" 2 of the License, or (at your option) any later version.
+.\"
+.TH KEYCTL_LINK 3 "4 May 2006" Linux "Linux Key Management Calls"
+.\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+.SH NAME
+keyctl_link, keyctl_unlink \- link/unlink a key to/from a keyring
+.\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+.SH SYNOPSIS
+.nf
+.B #include <keyutils.h>
+.sp
+.BI "long keyctl_link(key_serial_t " key ", key_serial_t " keyring ");"
+.sp
+.BI "long keyctl_unlink(key_serial_t " key ", key_serial_t " keyring ");"
+.\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+.SH DESCRIPTION
+.BR keyctl_link ()
+creates a link from
+.I keyring
+to
+.IR key ,
+displacing any link to another key of the same type and description in that
+keyring if one exists.
+.P
+.BR keyctl_unlink ()
+removes the link from
+.I keyring
+to
+.I key
+if it exists.
+.P
+The caller must have
+.B write
+permission on a keyring to be able create or remove links in it.
+.P
+The caller must have
+.B link
+permission on a key to be able to create a link to it.
+.\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+.SH RETURN VALUE
+On success
+.BR keyctl_link ()
+and
+.BR keyctl_unlink ()
+return
+.BR 0 .
+On error, the value
+.B -1
+will be returned and
+.I errno
+will have been set to an appropriate error.
+.\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+.SH ERRORS
+.TP
+.B ENOKEY
+The key or the keyring specified are invalid.
+.TP
+.B EKEYEXPIRED
+The key or the keyring specified have expired.
+.TP
+.B EKEYREVOKED
+The key or the keyring specified have been revoked.
+.TP
+.B EACCES
+The keyring exists, but is not
+.B writable
+by the calling process.
+.P
+For
+.BR keyctl_link ()
+only:
+.TP
+.B ENOMEM
+Insufficient memory to expand the keyring
+.TP
+.B EDQUOT
+Expanding the keyring would exceed the keyring owner's quota.
+.TP
+.B EACCES
+The key exists, but is not
+.B linkable
+by the calling process.
+.\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+.SH LINKING
+This is a library function that can be found in
+.IR libkeyutils .
+When linking,
+.B \-lkeyutils
+should be specified to the linker.
+.\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+.SH SEE ALSO
+.ad l
+.nh
+.BR keyctl (1),
+.BR add_key (2),
+.BR keyctl (2),
+.BR request_key (2),
+.BR keyctl (3),
+.BR keyrings (7),
+.BR keyutils (7)
+