dirent/list.c

   1 /* Copyright (C) 1991, 1993, 1997, 1998 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 #include <errno.h>
  20 #include <stddef.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <dirent.h>
  24
  25
  26 int
  27 test (const char *name)
  28 {
  29   DIR *dirp;
  30   struct dirent *entp;
  31   int retval = 0;
  32
  33   puts (name);
  34
  35   dirp = opendir (name);
  36   if (dirp == NULL)
  37     {
  38       perror ("opendir");
  39       return 1;
  40     }
  41
  42   errno = 0;
  43   while ((entp = readdir (dirp)) != NULL)
  44     printf ("%s\tfile number %lu\n",
  45             entp->d_name, (unsigned long int) entp->d_fileno);
  46
  47   if (errno)
  48     {
  49       perror ("readdir");
  50       retval = 1;
  51     }
  52
  53   if (closedir (dirp) < 0)
  54     {
  55       perror ("closedir");
  56       retval = 1;
  57     }
  58
  59   return retval;
  60 }
  61
  62 int
  63 main (int argc, char **argv)
  64 {
  65   int retval = 0;
  66   --argc;
  67   ++argv;
  68
  69   if (argc == 0)
  70     retval = test (".");
  71   else
  72     while (argc-- > 0)
  73       retval |= test (*argv++);
  74
  75   return retval;
  76 }