io/test-utime.c

   1 /* Copyright (C) 1994, 1996, 1997, 2000 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 <fcntl.h>
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <sys/stat.h>
  23 #include <unistd.h>
  24 #include <utime.h>
  25 #include <time.h>
  26
  27 int
  28 main (int argc, char *argv[])
  29 {
  30   char file[L_tmpnam];
  31   struct utimbuf ut;
  32   struct stat st;
  33   struct stat stnow;
  34   time_t now1, now2;
  35   int fd;
  36
  37   if (tmpnam (file) == 0)
  38     {
  39       perror ("tmpnam");
  40       exit (1);
  41     }
  42
  43   fd = creat (file, 0666);
  44   if (fd < 0)
  45     {
  46       perror ("creat");
  47       exit (1);
  48     }
  49   close (fd);
  50
  51   /* Test utime with arg */
  52   ut.actime = 500000000;
  53   ut.modtime = 500000001;
  54   if (utime (file, &ut))
  55     {
  56       perror ("utime");
  57       remove (file);
  58       exit (1);
  59     }
  60
  61   if (stat (file, &st))
  62     {
  63       perror ("stat");
  64       remove (file);
  65       exit (1);
  66     }
  67
  68   /* Test utime with NULL.
  69      Since there's a race condition possible here, we check
  70      the time before and after the call to utime.  */
  71   now1 = time (NULL);
  72   if (now1 == (time_t)-1)
  73     {
  74       perror ("time");
  75       remove (file);
  76       exit (1);
  77     }
  78
  79   if (utime (file, NULL))
  80     {
  81       perror ("utime NULL");
  82       remove (file);
  83       exit (1);
  84     }
  85
  86   now2 = time (NULL);
  87   if (now2 == (time_t)-1)
  88     {
  89       perror ("time");
  90       remove (file);
  91       exit (1);
  92     }
  93
  94   if (stat (file, &stnow))
  95     {
  96       perror ("stat");
  97       remove (file);
  98       exit (1);
  99     }
 100
 101   remove (file);
 102
 103   if (st.st_mtime != ut.modtime)
 104     {
 105       printf ("modtime %ld != %ld\n", st.st_mtime, ut.modtime);
 106       exit (1);
 107     }
 108
 109   if (st.st_atime != ut.actime)
 110     {
 111       printf ("actime %ld != %ld\n", st.st_atime, ut.actime);
 112       exit (1);
 113     }
 114
 115   if (stnow.st_mtime < now1 || stnow.st_mtime > now2)
 116     {
 117       printf ("modtime %ld <%ld >%ld\n", st.st_mtime, now1, now2);
 118       exit (1);
 119     }
 120
 121   if (stnow.st_atime < now1 || stnow.st_atime > now2)
 122     {
 123       printf ("actime %ld <%ld >%ld\n", st.st_atime, now1, now2);
 124       exit (1);
 125     }
 126
 127   puts ("Test succeeded.");
 128   exit (0);
 129 }