osx man page for acl_delete_perm

ACL_DELETE_PERM(3)					   BSD Library Functions Manual 					ACL_DELETE_PERM(3)

NAME
     acl_delete_perm -- delete permissions from a permission set

LIBRARY
     Standard C Library (libc, -lc)

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

     int
     acl_delete_perm(acl_permset_t permset_d, acl_perm_t perm);

DESCRIPTION
     The acl_delete_perm() function is a POSIX.1e call that removes specific permissions from permissions set perm.

RETURN VALUES
     The acl_delete_perm() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to
     indicate the error.

ERRORS
     The acl_delete_perm() function fails if:

     [EINVAL]		Argument permset_d is not a valid descriptor for a permission set.  Argument perm does not contain a valid acl_perm_t
			value.

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

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

HISTORY
     POSIX.1e support was introduced in FreeBSD 4.0.  The acl_delete_perm() function was added in FreeBSD 5.0.

AUTHORS
     The acl_delete_perm() function was written by Chris D. Faulhaber <jedgar@fxp.org>.

BSD
								  March 10, 2001							       BSD