io/bug-ftw1.c

   1 /* Test for ftw function searching in root directory.
   2    Copyright (C) 2001-2023 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <ftw.h>
  20 #include <mcheck.h>
  21 #include <stdio.h>
  22 #include <string.h>
  23
  24
  25 int result;
  26 int cnt;
  27 int sawroot;
  28
  29
  30 static int
  31 callback (const char *fname, const struct stat *st, int flag)
  32 {
  33   if (++cnt >= 10)
  34     return 1;
  35
  36   printf ("%d: \"%s\" -> ", cnt, fname);
  37   if (strcmp (fname, "/") == 0 && sawroot)
  38     {
  39       puts ("root directory reported twice");
  40       result = 1;
  41     }
  42   else if (fname[0] != '/')
  43     {
  44       puts ("missing '/' as first character");
  45       result = 1;
  46     }
  47   else if (fname[1] == '/')
  48     {
  49       puts ("double '/' at beginning");
  50       result = 1;
  51     }
  52   else
  53     {
  54       puts ("OK");
  55       sawroot |= strcmp (fname, "/") == 0;
  56     }
  57
  58   return 0;
  59 }
  60
  61
  62 int
  63 main (void)
  64 {
  65   mtrace ();
  66
  67   ftw ("/", callback, 10);
  68
  69   if (! sawroot)
  70     {
  71       puts ("root directory wasn't reported");
  72       result = 1;
  73     }
  74
  75   return result;
  76 }