io/bug-ftw1.c

   1 /* Test for ftw function searching in root directory.
   2    Copyright (C) 2001-2020 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@cygnus.com>, 2001.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <https://www.gnu.org/licenses/>.  */
  19
  20 #include <ftw.h>
  21 #include <mcheck.h>
  22 #include <stdio.h>
  23 #include <string.h>
  24
  25
  26 int result;
  27 int cnt;
  28 int sawroot;
  29
  30
  31 static int
  32 callback (const char *fname, const struct stat *st, int flag)
  33 {
  34   if (++cnt >= 10)
  35     return 1;
  36
  37   printf ("%d: \"%s\" -> ", cnt, fname);
  38   if (strcmp (fname, "/") == 0 && sawroot)
  39     {
  40       puts ("root directory reported twice");
  41       result = 1;
  42     }
  43   else if (fname[0] != '/')
  44     {
  45       puts ("missing '/' as first character");
  46       result = 1;
  47     }
  48   else if (fname[1] == '/')
  49     {
  50       puts ("double '/' at beginning");
  51       result = 1;
  52     }
  53   else
  54     {
  55       puts ("OK");
  56       sawroot |= strcmp (fname, "/") == 0;
  57     }
  58
  59   return 0;
  60 }
  61
  62
  63 int
  64 main (void)
  65 {
  66   mtrace ();
  67
  68   ftw ("/", callback, 10);
  69
  70   if (! sawroot)
  71     {
  72       puts ("root directory wasn't reported");
  73       result = 1;
  74     }
  75
  76   return result;
  77 }