xref: /freebsd/lib/libc/posix1e/acl_add_perm.3 (revision 4bf60dfaf85eb5bcbf5c08ad39ff3e4328e55807)

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.Dd March 10, 2001
.Dt ACL_ADD_PERM 3
.Os
.Sh NAME
.Nm acl_add_perm
.Nd Add permissions to a permission set
.Sh LIBRARY
.Lb libposix1e
.Sh SYNOPSIS
.Fd #include <sys/types.h>
.Fd #include <sys/acl.h>
.Ft int
.Fn acl_add_perm "acl_permset_t permset_d, acl_perm_t perm"
.Sh DESCRIPTION
.Fn acl_add_perm
is a POSIX.1e call that adds the permission contained in
.Ar perm
to the permission set
.Ar permset_d .
.Pp
Note: it is not considered an error to attempt to add permissions
that already exist in the permission set.
.Sh RETURN VALUES
Upon successful completion, the function will return a value of
.Va 0 .
Otherwise, a value of
.Va -1
will be returned, and
.Va errno
will be set to indicate the error.
.Sh ERRORS
If any of the following conditions occur, the
.Fn acl_add_perm
function will return a value of
.Va -1
and set
.Va errno
to the corresponding value:
.Bl -tag -width Er
.It Bq Er EINVAL
Argument
.Ar permset_d
is not a valid descriptor for a permission set within an ACL entry.
Argument
.Ar perm
does not contain a valid
.Ar acl_perm_t
value.
.El
.Sh SEE ALSO
.Xr acl 3 ,
.Xr acl_clear_perms 3 ,
.Xr acl_delete_perms 3 ,
.Xr acl_get_permset 3 ,
.Xr acl_set_permset 3 ,
.Xr posix1e 3
.Sh STANDARDS
POSIX.1e is described in IEEE POSIX.1e draft 17.
.Sh HISTORY
POSIX.1e support was introduced in
.Fx 4.0 .
The
.Fn acl_add_perm
function was added in
.Fx 5.0 .
.Sh AUTHORS
The
.Fn acl_add_perm
function was written by
.An Chris D. Faulhaber Aq jedgar@fxp.org .