fmtmode.c

/***********************************************************************
*                                                                      *
*               This software is part of the ast package               *
*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
*                      and is licensed under the                       *
*                 Eclipse Public License, Version 1.0                  *
*                    by AT&T Intellectual Property                     *
*                                                                      *
*                A copy of the License is available at                 *
*          http://www.eclipse.org/org/documents/epl-v10.html           *
*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
*                                                                      *
*              Information and Software Systems Research               *
*                            AT&T Research                             *
*                           Florham Park NJ                            *
*                                                                      *
*                 Glenn Fowler <[email protected]>                  *
*                  David Korn <[email protected]>                   *
*                   Phong Vo <[email protected]>                    *
*                                                                      *
***********************************************************************/
#pragma prototyped
/*
 * Glenn Fowler
 * AT&T Bell Laboratories
 *
 * return ls -l style file mode string given file mode bits
 * if external!=0 then mode is modex canonical
 */

#include "modelib.h"

char*
fmtmode(register int mode, int external)
{
	register char*		s;
	register struct modeop*	p;
	char*			buf;

	if (!external)
		mode = modex(mode);
	s = buf = fmtbuf(MODELEN + 1);
	for (p = modetab; p < &modetab[MODELEN]; p++)
		*s++ = p->name[((mode & p->mask1) >> p->shift1) | ((mode & p->mask2) >> p->shift2)];
	*s = 0;
	return buf;
}