xref: /freebsd/lib/libc/posix1e/acl_get_brand_np.3 (revision f4b37ed0f8b307b1f3f0f630ca725d68f1dff30d)
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26.\" $FreeBSD$
27.\"
28.Dd June 25, 2009
29.Dt ACL_GET_BRAND_NP 3
30.Os
31.Sh NAME
32.Nm acl_get_brand_np
33.Nd retrieve the ACL brand from an ACL entry
34.Sh LIBRARY
35.Lb libc
36.Sh SYNOPSIS
37.In sys/types.h
38.In sys/acl.h
39.Ft int
40.Fn acl_get_brand_np "acl_t acl" "int *brand_p"
41.Sh DESCRIPTION
42The
43.Fn acl_get_brand_np
44function
45is a non-portable call that returns the ACL brand for the ACL
46.Fa acl .
47Upon successful completion, the location referred to by the argument
48.Fa brand_p
49will be set to the ACL brand of the ACL
50.Fa acl .
51.Pp
52Branding is an internal mechanism intended to prevent mixing POSIX.1e
53and NFSv4 entries by mistake.
54It's also used by the libc to determine how to print out the ACL.
55The first call to function that is specific for one particular brand - POSIX.1e
56or NFSv4 - "brands" the ACL.
57After that, calling function specific to another brand will result in error.
58.Sh RETURN VALUES
59.Rv -std acl_get_brand_np
60.Sh ERRORS
61The
62.Fn acl_get_brand_np
63function fails if:
64.Bl -tag -width Er
65.It Bq Er EINVAL
66Argument
67.Fa acl
68does not point to a valid ACL.
69.El
70.Sh SEE ALSO
71.Xr acl 3 ,
72.Xr posix1e 3
73.Sh STANDARDS
74POSIX.1e is described in IEEE POSIX.1e draft 17.
75.Sh HISTORY
76POSIX.1e support was introduced in
77.Fx 4.0 .
78The
79.Fn acl_get_brand_np
80function was added in
81.Fx 8.0 .
82.Sh AUTHORS
83The
84.Fn acl_get_brand_np
85function was written by
86.An Edward Tomasz Napierala Aq Mt trasz@FreeBSD.org .
87