C++ (Cpp) guestfs_lstat Examples

Example #1

File: fuse.c Project: msmhrt/libguestfs

static int
mount_local_getattr (const char *path, struct stat *statbuf)
{
  DECL_G ();
  DEBUG_CALL ("%s, %p", path, statbuf);

  const struct stat *buf;

  buf = lsc_lookup (g, path);
  if (buf) {
    memcpy (statbuf, buf, sizeof *statbuf);
    return 0;
  }

  struct guestfs_stat *r;

  r = guestfs_lstat (g, path);
  if (r == NULL)
    RETURN_ERRNO;

  statbuf->st_dev = r->dev;
  statbuf->st_ino = r->ino;
  statbuf->st_mode = r->mode;
  statbuf->st_nlink = r->nlink;
  statbuf->st_uid = r->uid;
  statbuf->st_gid = r->gid;
  statbuf->st_rdev = r->rdev;
  statbuf->st_size = r->size;
  statbuf->st_blksize = r->blksize;
  statbuf->st_blocks = r->blocks;
  statbuf->st_atime = r->atime;
  statbuf->st_mtime = r->mtime;
  statbuf->st_ctime = r->ctime;

  guestfs_free_stat (r);

  return 0;
}

Example #2

File: test-last-errno.c Project: ArikaChen/libguestfs

int
main (int argc, char *argv[])
{
  guestfs_h *g;
  int r, err;
  struct guestfs_stat *stat;

  g = guestfs_create ();
  if (g == NULL) {
    fprintf (stderr, "failed to create handle\n");
    exit (EXIT_FAILURE);
  }

  if (guestfs_add_drive_scratch (g, 524288000, -1) == -1)
    exit (EXIT_FAILURE);

  if (guestfs_launch (g) == -1)
    exit (EXIT_FAILURE);

  if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1)
    exit (EXIT_FAILURE);

  if (guestfs_mkfs (g, "ext2", "/dev/sda1") == -1)
    exit (EXIT_FAILURE);

  /* Mount read-only, and check that errno == EROFS is passed back when
   * we create a file.
   */
  if (guestfs_mount_ro (g, "/dev/sda1", "/") == -1)
    exit (EXIT_FAILURE);

  r = guestfs_touch (g, "/test");
  if (r != -1) {
    fprintf (stderr,
             "guestfs_touch: expected error for read-only filesystem\n");
    exit (EXIT_FAILURE);
  }

  err = guestfs_last_errno (g);
  if (err != EROFS) {
    fprintf (stderr,
             "guestfs_touch: expected errno == EROFS, but got %d\n", err);
    exit (EXIT_FAILURE);
  }

  if (guestfs_umount (g, "/") == -1)
    exit (EXIT_FAILURE);

  /* Mount it writable and test some other errors. */
  if (guestfs_mount (g, "/dev/sda1", "/") == -1)
    exit (EXIT_FAILURE);

  stat = guestfs_lstat (g, "/nosuchfile");
  if (stat != NULL) {
    fprintf (stderr,
             "guestfs_lstat: expected error for missing file\n");
    exit (EXIT_FAILURE);
  }

  err = guestfs_last_errno (g);
  if (err != ENOENT) {
    fprintf (stderr,
             "guestfs_lstat: expected errno == ENOENT, but got %d\n", err);
    exit (EXIT_FAILURE);
  }

  if (guestfs_touch (g, "/test") == -1)
    exit (EXIT_FAILURE);

  r = guestfs_mkdir (g, "/test");
  if (r != -1) {
    fprintf (stderr,
             "guestfs_mkdir: expected error for file which exists\n");
    exit (EXIT_FAILURE);
  }

  err = guestfs_last_errno (g);
  if (err != EEXIST) {
    fprintf (stderr,
             "guestfs_mkdir: expected errno == EEXIST, but got %d\n", err);
    exit (EXIT_FAILURE);
  }

  guestfs_close (g);

  exit (EXIT_SUCCESS);
}