Copyright (c) 2000, 2002 Robert N. M. Watson
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This software was developed by Robert Watson for the TrustedBSD Project.
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$FreeBSD: releng/11.0/lib/libc/posix1e/acl_dup.3 131504 2004-07-02 23:52:20Z ru $
.Dd January 28, 2000 .Dt ACL_DUP 3 .Os .Sh NAME .Nm acl_dup .Nd duplicate an ACL .Sh LIBRARY .Lb libc .Sh SYNOPSIS n sys/types.h n sys/acl.h .Ft acl_t .Fn acl_dup "acl_t acl" .Sh DESCRIPTION The .Fn acl_dup function returns a pointer to a copy of the ACL pointed to by the argument .Va acl .
p This function may cause memory to be allocated. The caller should free any releasable memory, when the new ACL is no longer required, by calling .Xr acl_free 3 with the .Va (void*)acl_t as an argument.
p Any existing ACL pointers that refer to the ACL referred to by .Va acl shall continue to refer to the ACL. .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, this function shall return a pointer to the duplicate ACL. Otherwise, a value of .Va (acl_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 acl_init function shall return a value of .Va (acl_t)NULL and set .Va errno to the corresponding value: l -tag -width Er t Bq Er EINVAL Argument .Va acl does not point to a valid ACL. t Bq Er ENOMEM The .Va acl_t to be returned requires more memory than is allowed by the hardware or system-imposed memory management constraints. .El .Sh SEE ALSO .Xr acl 3 , .Xr acl_free 3 , .Xr acl_get 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 POSIX.1e support was introduced in .Fx 4.0 , and development continues. .Sh AUTHORS .An Robert N M Watson