xref: /freebsd/lib/libc/posix1e/acl_get_brand_np.3 (revision e0c4386e)
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25.Dd June 25, 2009
26.Dt ACL_GET_BRAND_NP 3
27.Os
28.Sh NAME
29.Nm acl_get_brand_np
30.Nd retrieve the ACL brand from an ACL entry
31.Sh LIBRARY
32.Lb libc
33.Sh SYNOPSIS
34.In sys/types.h
35.In sys/acl.h
36.Ft int
37.Fn acl_get_brand_np "acl_t acl" "int *brand_p"
38.Sh DESCRIPTION
39The
40.Fn acl_get_brand_np
41function
42is a non-portable call that returns the ACL brand for the ACL
43.Fa acl .
44Upon successful completion, the location referred to by the argument
45.Fa brand_p
46will be set to the ACL brand of the ACL
47.Fa acl .
48.Pp
49Branding is an internal mechanism intended to prevent mixing POSIX.1e
50and NFSv4 entries by mistake.
51It's also used by the libc to determine how to print out the ACL.
52The first call to function that is specific for one particular brand - POSIX.1e
53or NFSv4 - "brands" the ACL.
54After that, calling function specific to another brand will result in error.
55.Sh RETURN VALUES
56.Rv -std acl_get_brand_np
57.Sh ERRORS
58The
59.Fn acl_get_brand_np
60function fails if:
61.Bl -tag -width Er
62.It Bq Er EINVAL
63Argument
64.Fa acl
65does not point to a valid ACL.
66.El
67.Sh SEE ALSO
68.Xr acl 3 ,
69.Xr posix1e 3
70.Sh STANDARDS
71POSIX.1e is described in IEEE POSIX.1e draft 17.
72.Sh HISTORY
73POSIX.1e support was introduced in
74.Fx 4.0 .
75The
76.Fn acl_get_brand_np
77function was added in
78.Fx 8.0 .
79.Sh AUTHORS
80The
81.Fn acl_get_brand_np
82function was written by
83.An Edward Tomasz Napierala Aq Mt trasz@FreeBSD.org .
84