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  1. /*
  2.  * Copyright (c) 2008 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. #include <errno.h>
  30. #include <stdio.h>
  31. #include <stdlib.h>
  32. #include <string.h>
  33. #include <vfs.h>
  34. #include <unistd.h>
  35. #include <fcntl.h>
  36. #include <dirent.h>
  37. #include <sys/types.h>
  38. #include <sys/stat.h>
  39. #include "../tester.h"
  40.  
  41. char text[] = "O xein', angellein Lakedaimoniois hoti teide "
  42.     "keimetha tois keinon rhemasi peithomenoi.";
  43.  
  44. char *test_vfs1(bool quiet)
  45. {
  46.     if (mount("tmpfs", "/", "nulldev0") != EOK)
  47.         return "mount() failed.\n";
  48.     if (!quiet)
  49.         printf("mounted tmpfs on /.\n");
  50.  
  51.     if (mkdir("/mydir", 0) != 0)
  52.         return "mkdir() failed.\n";
  53.     if (!quiet)
  54.         printf("created directory /mydir\n");
  55.    
  56.     int fd0 = open("/mydir/myfile", O_CREAT);
  57.     if (fd0 < 0)
  58.         return "open() failed.\n";
  59.     if (!quiet)
  60.         printf("created file /mydir/myfile, fd=%d\n", fd0);
  61.  
  62.     ssize_t cnt;
  63.     size_t size = sizeof(text);
  64.     cnt = write(fd0, text, size);
  65.     if (cnt < 0)
  66.         return "write() failed.\n";
  67.     if (!quiet)
  68.         printf("written %d bytes, fd=%d\n", cnt, fd0);
  69.     if (lseek(fd0, 0, SEEK_SET) != 0)
  70.         return "lseek() failed.\n";
  71.     if (!quiet)
  72.         printf("sought to position 0, fd=%d\n", fd0);
  73.  
  74.     char buf[10];
  75.  
  76.     cnt = read(fd0, buf, sizeof(buf));
  77.     if (cnt < 0)
  78.         return "read() failed.\n";
  79.  
  80.     if (!quiet)
  81.         printf("read %d bytes: \"%.*s\", fd=%d\n", cnt, cnt, buf, fd0);
  82.  
  83.     DIR *dirp;
  84.     struct dirent *dp;
  85.  
  86.     dirp = opendir("/");
  87.     if (!dirp)
  88.         return "opendir() failed.";
  89.     while ((dp = readdir(dirp)))
  90.         printf("discovered node %s in /\n", dp->d_name);
  91.     closedir(dirp);
  92.  
  93.     return NULL;
  94. }
  95.  
  96.