osx man page for acl_get_perm_np

ACL_GET_PERM_NP(3)					   BSD Library Functions Manual 					ACL_GET_PERM_NP(3)

NAME
     acl_get_perm_np -- check if a permission is set in a permission set

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <sys/types.h>
     #include <sys/acl.h>

     int
     acl_get_perm_np(acl_permset_t permset_d, acl_perm_t perm);

DESCRIPTION
     The acl_get_perm_np() function is a non-portable function that checks if a permission is set in a permission set.

RETURN VALUES
     If the permission in perm is set in the permission set permset_d, a value of 1 is returned, otherwise a value of 0 is returned.

ERRORS
     If any of the following conditions occur, the acl_get_perm_np() function will return a value of -1 and set global variable errno to the cor-
     responding value:

     [EINVAL]		Argument perm does not contain a valid ACL permission or argument permset_d is not a valid ACL permset.

SEE ALSO
     acl(3), acl_add_perm(3), acl_clear_perms(3), acl_delete_perm(3), acl_get_permset(3), acl_set_permset(3), posix1e(3)

STANDARDS
     POSIX.1e is described in IEEE POSIX.1e draft 17.

AUTHORS
     Michael Smith
     Chris D. Faulhaber

BSD
								  April 10, 2001							       BSD