source: rtems/c/src/tests/psxtests/psxmount/test.c @ 1e566bbb

4.104.114.84.95
Last change on this file since 1e566bbb was 1e566bbb, checked in by Jennifer Averett <Jennifer.Averett@…>, on Nov 17, 2000 at 7:06:40 PM

2000-11-17 Jennifer Averret <jennifer@…>

  • psxmount/test.c, psxmount/psxmount.scn: Improve output to report expected error condition in one case.
  • psxreaddir/test.c, psxreaddir.scn: Added test cases to exercise readdir() of root of mounted filesystem. Also corrected the screen file for some mistakes noticed in this effort.
  • Property mode set to 100644
File size: 10.4 KB
Line 
1/*
2 *  This is a native test to explore how the readdir() family works.
3 *  Newlib supports the following readdir() family members:
4 *
5 *    closedir()   -
6 *    readdir()    -
7 *    scandir()    -
8 *    opendir()    -
9 *    rewinddir()  -
10 *    telldir()    - BSD not in POSIX
11 *    seekdir()    - BSD not in POSIX
12 *
13 *
14 *  seekdir() takes an offset which is a byte offset.  The Linux
15 *  implementation of this appears to seek to the ((off/DIRENT_SIZE) + 1)
16 *  record where DIRENT_SIZE seems to be 12 bytes.
17 *
18 *
19 *
20 *  $Id$
21 */
22#include <stdio.h>
23#include <sys/types.h>
24#include <sys/stat.h>
25#include <fcntl.h>
26#include <dirent.h>
27#include <string.h>
28#include <assert.h>
29#include <unistd.h>
30#include <errno.h>
31#include <rtems.h>
32#include <rtems/libio.h>
33#include <imfs.h>
34
35extern rtems_filesystem_location_info_t rtems_filesystem_current;
36
37DIR *directory;
38DIR *directory2;
39DIR *directory3;
40DIR *directory_not;
41
42#ifndef __P
43#define __P(args)()
44#endif
45
46char *dnames[] = {
47        "a",
48        "b",
49        "c",
50        "d",
51        "e",
52        "f",
53        "c/y",
54        "c/z",
55        "c/x",
56        "c/y/a3333",
57        "c/y/j123",
58        "c/y/my_mount_point", 
59        "c/y/my_mount_point/my_dir",
60        "c/z/my_mount_point",
61        "END"
62};
63
64char *fnames[] = {
65        "a",
66        "b",
67        "c",
68        "d",
69        "e",
70        "f",
71        "c/y",
72        "c/z",
73        "c/x",
74        "c/y/a3333",
75        "c/y/j123",
76        "c/y/my_mount_point",
77        "c/y/my_mount_point/my_dir",
78        "c/y/my_mount_point/my_dir/d",
79        "c/z/my_mount_point",
80        "/c/z/my_mount_point/a/../../my_mount_point/a/g",
81        "END"
82};
83
84#if defined(__rtems__)
85int test_main(void)
86#else
87int main(
88  int argc,
89  char **argv
90)
91#endif
92{
93  int i;
94  int fd;
95  int status;
96  struct stat statbuf;
97  rtems_filesystem_mount_table_entry_t *mt_entry;
98  static char mount_point_string[25] = { "/c/z/my_mount_point" };
99
100
101  printf( "\n\n*** MOUNT/UNMOUNT TEST ***\n" );
102
103  /*
104   * Change directory to the root and create files under
105   * the base file system.
106   */
107
108  printf( "\nchdir to the root directory\n" );
109  status = chdir( "/" );
110  printf( "chdir() status : %d\n\n", status );
111
112  printf( "\nCreating a series of directories under /\n" );
113  i=0;
114  while ( strcmp(dnames[i], "END") != 0 )
115  {
116     status = mkdir( dnames[i], 0777 );
117     printf("Creating : %25s  %d %d   ", dnames[i], status, errno );
118     if ( status == 0 )
119        printf(" Success\n");
120     else
121        printf(" Failure\n");
122
123     i++;
124  }
125
126  /*
127   * Create a Files with all rwx for others group and user.  Verify
128   * the created file.
129   */
130
131  printf("create /b/my_file\n");
132  fd = open ("/b/my_file", O_CREAT, S_IRWXU|S_IRWXG|S_IRWXO);
133  assert( fd != 0 );
134  close (fd);
135
136  printf("Verify /b/my_file\n");
137  fd = open("/b/my_file", S_IRWXU|S_IRWXG|S_IRWXO);
138  assert( fd != 0 );
139  close( fd );
140
141
142  printf("create c/y/my_mount_point/my_dir/d\n");
143  fd = open ("c/y/my_mount_point/my_dir/d", O_CREAT, S_IRWXU|S_IRWXG|S_IRWXO);
144  assert( fd != 0 );
145  close (fd);
146 
147  printf("Verify c/y/my_mount_point/my_dir/d\n");
148  fd = open("c/y/my_mount_point/my_dir/d", S_IRWXU|S_IRWXG|S_IRWXO);
149  assert( fd != 0 );
150  close( fd );
151
152  /*
153   *  Mount an the IMFS file system on the base file system.
154   */
155
156  printf("Attempting to mount IMFS file system at /c/z/my_mount_point \n");
157  status = mount(
158     &mt_entry,
159     &IMFS_ops,
160     RTEMS_FILESYSTEM_READ_WRITE,
161     NULL,
162     mount_point_string );
163  assert( status == 0 );
164  if( mt_entry == NULL ){
165     printf(" NULL mount table entry was returned\n");
166  }
167  else {
168     printf("2nd file system successfully mounted at /c/z/my_mount_point \n");
169  }
170
171  /*
172   * Change directory to the mount point and create a group of files under
173   * the mounted file system.
174   */
175
176  printf( "\nchdir to /c/z/my_mount_point.\n" );
177  status = chdir( "/c/z/my_mount_point" );
178  printf( "chdir() status : %d\n\n", status );
179
180  printf( "\nCreating a series of directories under /c/z/my_mount_point\n" );
181  i=0;
182  while ( strcmp(fnames[i], "END") != 0 )
183  {
184     status = mkdir( fnames[i], 0777 );
185     printf("Creating: %46s   %d %d   ", fnames[i], status, errno );
186     if ( status == 0 )
187        printf(" Success\n");
188     else {
189        printf(" Failure\n");
190        perror("errno");
191     }
192
193     status = stat( fnames[i], &statbuf );
194     if ( status == -1 )
195       printf( ": %s\n", strerror( errno ) );
196
197     i++;
198  }
199
200  printf( "\nchdir to /\n" );
201  status = chdir( "/" );
202  printf( "chdir() status : %d\n\n", status );
203
204  /*
205   * Unmount the first file system we mounted
206   */
207
208  printf( "Unmount status:");
209  status = unmount( "/c/z/my_mount_point" );
210  printf( " %d\n", status );
211
212
213  /*
214   * Mount a NULL filesystem and verify it fails.
215   */
216
217  printf("Mount a NULL file system and verify EINVAL\n");
218  status = mount(
219   &mt_entry,
220   NULL,
221   RTEMS_FILESYSTEM_READ_WRITE,
222   NULL,
223   mount_point_string );
224  assert( status == -1 );
225  assert( errno == EINVAL );
226
227  /*
228   * Verify mount with option of -62 fails with EINVAL
229   */
230
231  printf("mount with option of -62 should fail with EINVAL\n");
232  status = mount(
233     &mt_entry,
234     &IMFS_ops,
235     -62,
236     NULL,
237     "/c/y/my_mount_point" );
238  assert( status == -1 );
239  assert( errno == EINVAL );
240
241  /*
242   * Mount a Read Only File system.
243   */
244
245  printf("Mount a Read Only filesystem at /c/y/my_mount_point \n");
246  status = mount(
247     &mt_entry,
248     &IMFS_ops,
249     RTEMS_FILESYSTEM_READ_ONLY,
250     NULL,
251     "/c/y/my_mount_point" );
252  assert( status == 0 );
253  if( mt_entry == NULL ){
254     printf(" NULL mount table entry was returned\n");
255  }
256  else {
257     printf("Read only file system successfully mounted at /c/y/my_mount_point \n");
258  }
259
260  /*
261   * Create a directory that passes through the read only file system.
262   */
263
264  printf("create c/y/my_mount_point/../../y/my_mount_point/new_dir\n");
265  status = mkdir("c/y/my_mount_point/../../y/my_mount_point/new_dir",S_IRWXU );
266  assert( status == 0 );
267  status = stat("c/y/my_mount_point/../../y/my_mount_point/new_dir",&statbuf );
268  assert( status == 0 );
269  status = stat("c/y/my_mount_point/new_dir/..", &statbuf );
270  assert( status == 0 );
271
272  /*
273   * Attempt to mount a second file system at a used mount point.
274   */
275
276  printf("Verify a mount point returns EBUSY for another mount\n");
277  status = mount(
278     &mt_entry,
279     &IMFS_ops,
280     RTEMS_FILESYSTEM_READ_ONLY,
281     NULL,
282     "/c/y/my_mount_point" );
283  assert( status == -1 );
284  assert( errno == EBUSY);
285
286  /*
287   * Attempt to mount at a file.
288   */
289
290  printf("Mount on a file should fail with ENOTDIR\n");
291  status = mount(
292     &mt_entry,
293     &IMFS_ops,
294     RTEMS_FILESYSTEM_READ_ONLY,
295     NULL,
296     "/b/my_file" );
297  assert( status == -1 );
298  assert( errno == ENOTDIR );
299
300 
301  /*
302   * Verify we cannot unmount a file system while we are in it.
303   */
304
305  printf("Create and chdir to /c/y/my_mount_point/mydir\n");
306  status = mkdir( "/c/y/my_mount_point/mydir", 0777);
307  assert( status == 0 );
308
309  status = chdir( "/c/y/my_mount_point/mydir" );
310  assert( status == 0 );
311
312  printf("unmount of /c/y/my_mount_point should fail with EBUSY\n");
313  status = unmount( "/c/y/my_mount_point" );
314  assert( status == -1 );
315  assert( errno == EBUSY );
316
317  /*
318   * Chdir to root and verify we can unmount the file system now.
319   */
320
321  printf("chdir to / and verify we can unmount /c/y/my_mount_point\n");
322  status = chdir( "/" );
323  assert( status == 0 );
324
325  printf("unmount /c/y/my_mount_point \n");
326  status = unmount( "/c/y/my_mount_point" );
327  assert( status == 0 );
328
329  /*
330   * Attempt to unmount a directory that does not exist.
331   */
332
333  printf("unmount /b/mount_point should fail with EINVAL\n");
334  status = unmount( "/b/mount_point" );
335  assert( status == -1 );
336  assert( errno == ENOENT );
337 
338  /*
339   * Remount the filesystem.
340   */
341
342  printf("Mount /c/y/my_mount_point\n");
343  status = mount(
344     &mt_entry,
345     &IMFS_ops,
346     RTEMS_FILESYSTEM_READ_ONLY,
347     NULL,
348     "/c/y/my_mount_point" );
349  assert( status == 0 );
350
351  /*
352   * Create a file and directory then open the directory.
353   * Verify unmount will return EBUSY while directory is open.
354   */
355
356  printf("Create and open /c/y/my_mount_point/my_file\n");
357  fd = open( "/c/y/my_mount_point/my_file", O_CREAT, S_IRWXU|S_IRWXG|S_IRWXO);
358  assert( fd != -1 );
359  status = close( fd );
360  assert( status == 0 );
361
362  printf("\nmkdir /c/y/my_mount_point/my_dir\n");
363  status = mkdir( "/c/y/my_mount_point/my_dir", 0x1c0 );
364  printf("Open /c/y/my_mount_point/my_dir\n");
365  directory = opendir( "/c/y/my_mount_point/my_dir" );
366  assert( directory ); 
367 
368  printf("Unmount /c/y/my_mount_point should fail with EBUSY\n");
369  status = unmount( "/c/y/my_mount_point" );
370  assert( status == -1 );
371  assert( errno == EBUSY );
372
373  printf("Close /c/y/my_mount_point/my_dir\n");
374  status = closedir( directory ); 
375  assert( status == 0 );
376
377  /*
378   * Attempt to unmount a directory that is not a mount point.
379   */
380
381  printf("Unmount /c/y/my_mount_point/my_dir should fail with EACCES\n");
382  status = unmount( "/c/y/my_mount_point/my_dir" );
383  assert( status == -1 );
384  assert( errno == EACCES );
385
386  /*
387   * Verify a file system can not be unmounted with a mounted file system
388   * in it.
389   */
390
391  printf("Mount a file system at /c/y/my_mount_point/my_dir\n");
392  status = mount(
393     &mt_entry,
394     &IMFS_ops,
395     RTEMS_FILESYSTEM_READ_WRITE,
396     NULL,
397     "/c/y/my_mount_point/my_dir");
398  assert( status == 0 );
399
400  printf("unmount /c/y/my_mount_point should fail with EBUSY\n");
401  status = unmount( "/c/y/my_mount_point" );
402  assert( status == -1 );
403  assert( errno == EBUSY );
404
405  /*
406   * Verify you cannot create a hard link across mounted file systems.
407   */
408
409  printf("Verify a hard link across filesystems fails with EXDEV\n");
410  status = mkdir( "/c/y/my_mount_point/my_dir2", S_IRWXU  );
411  assert( status == 0 ); 
412
413  status = link( "/c/y/my_mount_point/my_dir2", "/c/y/my_mount_point/my_dir/my_link" );
414  assert( status == -1 );
415  assert( errno == EXDEV );
416
417  /*
418   * Create a symbolic link across mountpoints.
419   */
420
421  printf("Verify a symbolic link across file systems works\n");
422  status = symlink( "/c/y/my_mount_point/my_dir2", "/c/y/my_mount_point/my_dir/my_link" );
423  assert( status == 0 );
424  status = stat( "/c/y/my_mount_point/my_dir/my_link", &statbuf );
425  assert( status == 0 );
426
427  printf("unmount /c/y/my_mount_point/my_dir\n");
428  status = unmount( "/c/y/my_mount_point/my_dir" );
429  assert( status == 0 );
430
431  /*
432   * Verify symblic link no longer works.
433   */
434
435  printf("Verify the symbolic link now fails\n");
436  status = stat( "/c/y/my_mount_point/my_dir/my_link", &statbuf );
437  assert( status != 0 );
438
439  printf("unmount /c/y/my_mount_point\n");
440  status = unmount( "/c/y/my_mount_point" );
441  assert( status == 0 );
442
443  printf( "\n\n*** END OF MOUNT/UNMOUNT TEST ***\n" );
444  exit(0);
445}
446
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