tests/utime-file.c

   1 /*
   2  * Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #ifdef HAVE_CONFIG_H
  35 #include <config.h>
  36 #endif
  37
  38 #ifdef RCSID
  39 RCSID("$Id$");
  40 #endif
  41
  42 #include <fcntl.h>
  43 #include <stdio.h>
  44 #include <stdlib.h>
  45 #include <unistd.h>
  46 #include <utime.h>
  47 #include <sys/stat.h>
  48 #include <sys/time.h>
  49
  50 #include <roken.h>
  51 #include <err.h>
  52
  53 int
  54 main (int argc, char ** argv)
  55 {
  56     int len;
  57     int ret;
  58     int fd;
  59     char *filename = "foo";
  60     char *buf;
  61     struct stat sb;
  62     struct utimbuf t;
  63
  64     switch (argc) {
  65     case 1:
  66         len = 8 * 1024; break;
  67     case 2:
  68         len = atoi(argv[1]);
  69         if (len == 0)
  70             errx (1, "invalid len");
  71     default:
  72         errx (1, "argv != [12]");
  73     }
  74
  75     buf = malloc (len);
  76     memset (buf, 'a', len);
  77
  78     fd = open (filename, O_RDWR|O_CREAT|O_EXCL, 0744);
  79     if (fd < 0)
  80         errx (1, "open");
  81     ret = fstat (fd, &sb);
  82     if (ret < 0)
  83         errx (1, "open");
  84
  85     ret = ftruncate (fd, len);
  86     fstat (fd, &sb);
  87     lseek (fd, 0, SEEK_SET);
  88     write (fd, buf, len);
  89     fstat (fd, &sb);
  90
  91     t.modtime = t.actime = time (NULL);
  92     utime (filename, &t);
  93
  94     close (fd);
  95     free (buf);
  96
  97     return 0;
  98 }