lib/libc/string/strmode.c

   1 /*-
   2  * Copyright (c) 1990, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * @(#)strmode.c        8.3 (Berkeley) 8/15/94
  30  * $FreeBSD: src/lib/libc/string/strmode.c,v 1.5 2007/01/09 00:28:12 imp Exp $
  31  * $DragonFly: src/lib/libc/string/strmode.c,v 1.4 2005/09/18 16:32:34 asmodai Exp $
  32  */
  33
  34 #include <sys/types.h>
  35 #include <sys/stat.h>
  36 #include <string.h>
  37
  38 void
  39 strmode(mode_t mode, char *p)
  40 {
  41          /* print type */
  42         switch (mode & S_IFMT) {
  43         case S_IFDIR:                   /* directory */
  44                 *p++ = 'd';
  45                 break;
  46         case S_IFCHR:                   /* character special */
  47                 *p++ = 'c';
  48                 break;
  49         case S_IFBLK:                   /* block special */
  50                 *p++ = 'b';
  51                 break;
  52         case S_IFREG:                   /* regular */
  53                 *p++ = '-';
  54                 break;
  55         case S_IFLNK:                   /* symbolic link */
  56                 *p++ = 'l';
  57                 break;
  58         case S_IFSOCK:                  /* socket */
  59                 *p++ = 's';
  60                 break;
  61 #ifdef S_IFIFO
  62         case S_IFIFO:                   /* fifo */
  63                 *p++ = 'p';
  64                 break;
  65 #endif
  66 #ifdef S_IFWHT
  67         case S_IFWHT:                   /* whiteout */
  68                 *p++ = 'w';
  69                 break;
  70 #endif
  71         default:                        /* unknown */
  72                 *p++ = '?';
  73                 break;
  74         }
  75         /* usr */
  76         if (mode & S_IRUSR)
  77                 *p++ = 'r';
  78         else
  79                 *p++ = '-';
  80         if (mode & S_IWUSR)
  81                 *p++ = 'w';
  82         else
  83                 *p++ = '-';
  84         switch (mode & (S_IXUSR | S_ISUID)) {
  85         case 0:
  86                 *p++ = '-';
  87                 break;
  88         case S_IXUSR:
  89                 *p++ = 'x';
  90                 break;
  91         case S_ISUID:
  92                 *p++ = 'S';
  93                 break;
  94         case S_IXUSR | S_ISUID:
  95                 *p++ = 's';
  96                 break;
  97         }
  98         /* group */
  99         if (mode & S_IRGRP)
 100                 *p++ = 'r';
 101         else
 102                 *p++ = '-';
 103         if (mode & S_IWGRP)
 104                 *p++ = 'w';
 105         else
 106                 *p++ = '-';
 107         switch (mode & (S_IXGRP | S_ISGID)) {
 108         case 0:
 109                 *p++ = '-';
 110                 break;
 111         case S_IXGRP:
 112                 *p++ = 'x';
 113                 break;
 114         case S_ISGID:
 115                 *p++ = 'S';
 116                 break;
 117         case S_IXGRP | S_ISGID:
 118                 *p++ = 's';
 119                 break;
 120         }
 121         /* other */
 122         if (mode & S_IROTH)
 123                 *p++ = 'r';
 124         else
 125                 *p++ = '-';
 126         if (mode & S_IWOTH)
 127                 *p++ = 'w';
 128         else
 129                 *p++ = '-';
 130         switch (mode & (S_IXOTH | S_ISVTX)) {
 131         case 0:
 132                 *p++ = '-';
 133                 break;
 134         case S_IXOTH:
 135                 *p++ = 'x';
 136                 break;
 137         case S_ISVTX:
 138                 *p++ = 'T';
 139                 break;
 140         case S_IXOTH | S_ISVTX:
 141                 *p++ = 't';
 142                 break;
 143         }
 144         *p++ = ' ';             /* will be a '+' if ACL's implemented */
 145         *p = '\0';
 146 }