/*******************************************************************
*                                                                  *
*             This software is part of the ast package             *
*                Copyright (c) 1985-2004 AT&T Corp.                *
*        and it may only be used by you under license from         *
*                       AT&T Corp. ("AT&T")                        *
*         A copy of the Source Code Agreement is available         *
*                at the AT&T Internet web site URL                 *
*                                                                  *
*       http://www.research.att.com/sw/license/ast-open.html       *
*                                                                  *
*    If you have copied or used this software without agreeing     *
*        to the terms of the license you are infringing on         *
*           the license and copyright and are violating            *
*               AT&T's intellectual property rights.               *
*                                                                  *
*            Information and Software Systems Research             *
*                        AT&T Labs Research                        *
*                         Florham Park NJ                          *
*                                                                  *
*               Glenn Fowler <gsf@research.att.com>                *
*                David Korn <dgk@research.att.com>                 *
*                 Phong Vo <kpv@research.att.com>                  *
*                                                                  *
*******************************************************************/
#pragma prototyped
/*
 * G. S. Fowler
 * AT&T Bell Laboratories
 *
 * return modex canonical representation of file mode bits
 * given ls -l style file mode string
 */

#include "modelib.h"

int
strmode(register const char* s)
{
	register int		c;
	register char*		t;
	register struct modeop*	p;
	int			mode;

	mode = 0;
	for (p = modetab; (c = *s++) && p < &modetab[MODELEN]; p++)
		for (t = p->name; *t; t++)
			if (*t == c)
			{
				c = t - p->name;
				mode |= (p->mask1 & (c << p->shift1)) | (p->mask2 & (c << p->shift2));
				break;
			}
	return(mode);
}
