/*
 *	aegis - project change supervisor
 *	Copyright (C) 1991-2003 Peter Miller;
 *	All rights reserved.
 *
 *	This program is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License as published by
 *	the Free Software Foundation; either version 2 of the License, or
 *	(at your option) any later version.
 *
 *	This program is distributed in the hope that it will be useful,
 *	but WITHOUT ANY WARRANTY; without even the implied warranty of
 *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *	GNU General Public License for more details.
 *
 *	You should have received a copy of the GNU General Public License
 *	along with this program; if not, write to the Free Software
 *	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 * MANIFEST: wrappers around operating system functions
 */

#include <os.h>


string_ty *
os_below_dir(string_ty *higher, string_ty *lower)
{
    char            *s1;
    char            *s2;

    s1 = higher->str_text;
    s2 = lower->str_text;
    while (*s1 == *s2 && *s1)
	s1++, s2++;
    if (*s1)
	return 0;
    if (!*s2)
	return str_from_c("");
    if (*s2 != '/')
	return 0;
    return str_from_c(s2 + 1);
}
