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authorrwatson <rwatson@FreeBSD.org>2002-06-13 23:40:13 +0000
committerrwatson <rwatson@FreeBSD.org>2002-06-13 23:40:13 +0000
commit98c2077a11dcaa1ca3ecd40d5031caccf347b452 (patch)
treedc3e6fd94d33f5d12453e45259019df9d095e8c8 /lib/libc/posix1e/cap_init.3
parent1f8d67dfae3bcd1b219934baf162c02edf8c7aa3 (diff)
downloadFreeBSD-src-98c2077a11dcaa1ca3ecd40d5031caccf347b452.zip
FreeBSD-src-98c2077a11dcaa1ca3ecd40d5031caccf347b452.tar.gz
No POSIX.1e capabilities in the main tree yet.
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-.\"-
-.\" Copyright (c) 2000 Robert N. M. Watson
-.\" All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\" notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\" notice, this list of conditions and the following disclaimer in the
-.\" documentation and/or other materials provided with the distribution.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\" $FreeBSD$
-.\"
-.\" TrustedBSD Project - support for POSIX.1e process capabilities
-.\"
-.Dd April 1, 2000
-.Dt CAP_INIT 3
-.Os
-.Sh NAME
-.Nm cap_init
-.Nd allocate and initialize a capability state in working storage
-.Sh LIBRARY
-.Lb libc
-.Sh SYNOPSIS
-.In sys/types.h
-.In sys/capability.h
-.Ft cap_t
-.Fn cap_init "void"
-.Sh DESCRIPTION
-The function
-.Fn cap_init
-shall create a capability state in working storage and return a pointer to
-the capability state.
-The initial value of all flags for all capabilities defined by the
-implementation shall be cleared.
-.Pp
-This function may cause memory to be allocated.
-The caller should free any releasable memory, when the capability state in
-working storage is no longer required, by calling
-.Fn cap_free
-with the cap_t as an argument.
-.Sh IMPLEMENTATION NOTES
-.Fx Ns 's
-support for POSIX.1e interfaces and features is still under
-development at this time.
-.Sh RETURN VALUES
-Upon successful completion, the
-.Fn cap_init
-function returns a non-NULL cap_t value.
-Otherwise, a value of
-.Va (cap_t)NULL
-shall be returned and
-.Va errno
-shall be set to indicate the error.
-.Sh ERRORS
-If any of the following conditions occur, the
-.Fn cap_dup
-function shall return
-.Va (cap_t)NULL
-and set
-.Va errno
-to the corresponding value:
-.Bl -tag -width Er
-.It Bq Er ENOMEM
-The capability state to be returned requires more memory than is allowed by
-the hardware or system-imposed memory management constraints.
-.El
-.Sh SEE ALSO
-.Xr cap 3 ,
-.Xr cap_free 3 ,
-.Xr posix1e 3
-.Sh STANDARDS
-POSIX.1e is described in IEEE POSIX.1e draft 17. Discussion
-of the draft continues on the cross-platform POSIX.1e implementation
-mailing list. To join this list, see the
-.Fx
-POSIX.1e implementation
-page for more information.
-.Sh HISTORY
-Support for POSIX.1e Capabilities was developed as part of the TrustedBSD
-Project.
-POSIX.1e Capability support was introduced in
-.Fx 5.0 ,
-and development continues.
-.Sh AUTHORS
-.An Robert N M Watson
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