xref: /freebsd/lib/libc/posix1e/acl_strip_np.3 (revision a466cc55373fc3cf86837f09da729535b57e69a1)
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2.\" Copyright (c) 2008, 2009 Edward Tomasz Napierala
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27.\" $FreeBSD$
28.\"
29.Dd June 25, 2009
30.Dt ACL_STRIP_NP 3
31.Os
32.Sh NAME
33.Nm acl_strip_np
34.Nd strip extended entries from an ACL
35.Sh LIBRARY
36.Lb libc
37.Sh SYNOPSIS
38.In sys/types.h
39.In sys/acl.h
40.Ft acl_t
41.Fn acl_strip_np "const acl_t acl" "int recalculate_mask"
42.Sh DESCRIPTION
43The
44.Fn acl_strip_np
45function returns a pointer to a trivial ACL computed from the ACL pointed
46to by the argument
47.Va acl .
48.Pp
49This function may cause memory to be allocated.
50The caller should free any
51releasable memory, when the new ACL is no longer required, by calling
52.Xr acl_free 3
53with the
54.Va (void*)acl_t
55as an argument.
56.Pp
57Any existing ACL pointers that refer to the ACL referred to by
58.Va acl
59shall continue to refer to the ACL.
60.Sh RETURN VALUES
61Upon successful completion, this function shall return a pointer to the
62newly allocated ACL.
63Otherwise, a value of
64.Va (acl_t)NULL
65shall be returned, and
66.Va errno
67shall be set to indicate the error.
68.Sh ERRORS
69If any of the following conditions occur, the
70.Fn acl_init
71function shall return a value of
72.Va (acl_t)NULL
73and set
74.Va errno
75to the corresponding value:
76.Bl -tag -width Er
77.It Bq Er EINVAL
78Argument
79.Va acl
80does not point to a valid ACL.
81.It Bq Er ENOMEM
82The
83.Va acl_t
84to be returned requires more memory than is allowed by the hardware or
85system-imposed memory management constraints.
86.El
87.Sh SEE ALSO
88.Xr acl 3 ,
89.Xr acl_is_trivial_np 3 ,
90.Xr posix1e 3
91.Sh STANDARDS
92POSIX.1e is described in IEEE POSIX.1e draft 17.
93Discussion
94of the draft continues on the cross-platform POSIX.1e implementation
95mailing list.
96To join this list, see the
97.Fx
98POSIX.1e implementation
99page for more information.
100.Sh HISTORY
101POSIX.1e support was introduced in
102.Fx 4.0 .
103The
104.Fn acl_strip_np
105function was added in
106.Fx 8.0 .
107.Sh AUTHORS
108.An Edward Tomasz Napierala Aq Mt trasz@FreeBSD.org
109