usr/src/lib/libast/common/string/fmtmode.c

   1 /***********************************************************************
   2 *                                                                      *
   3 *               This software is part of the ast package               *
   4 *          Copyright (c) 1985-2010 AT&T Intellectual Property          *
   5 *                      and is licensed under the                       *
   6 *                  Common Public License, Version 1.0                  *
   7 *                    by AT&T Intellectual Property                     *
   8 *                                                                      *
   9 *                A copy of the License is available at                 *
  10 *            http://www.opensource.org/licenses/cpl1.0.txt             *
  11 *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
  12 *                                                                      *
  13 *              Information and Software Systems Research               *
  14 *                            AT&T Research                             *
  15 *                           Florham Park NJ                            *
  16 *                                                                      *
  17 *                 Glenn Fowler <gsf@research.att.com>                  *
  18 *                  David Korn <dgk@research.att.com>                   *
  19 *                   Phong Vo <kpv@research.att.com>                    *
  20 *                                                                      *
  21 ***********************************************************************/
  22 #pragma prototyped
  23 /*
  24  * Glenn Fowler
  25  * AT&T Bell Laboratories
  26  *
  27  * return ls -l style file mode string given file mode bits
  28  * if external!=0 then mode is modex canonical
  29  */
  30
  31 #include "modelib.h"
  32
  33 char*
  34 fmtmode(register int mode, int external)
  35 {
  36         register char*          s;
  37         register struct modeop* p;
  38         char*                   buf;
  39
  40         if (!external)
  41                 mode = modex(mode);
  42         s = buf = fmtbuf(MODELEN + 1);
  43         for (p = modetab; p < &modetab[MODELEN]; p++)
  44                 *s++ = p->name[((mode & p->mask1) >> p->shift1) | ((mode & p->mask2) >> p->shift2)];
  45         *s = 0;
  46         return buf;
  47 }