lib/libvboxfs/info.c

   1 /* Part of libvboxfs - (c) 2012, D.C. van Moolenbroek */
   2
   3 #include "inc.h"
   4
   5 /*
   6  * Get or set file information.
   7  */
   8 int
   9 vboxfs_getset_info(vboxfs_handle_t handle, u32_t flags, void *data,
  10         size_t size)
  11 {
  12         vbox_param_t param[5];
  13
  14         vbox_set_u32(&param[0], vboxfs_root);
  15         vbox_set_u64(&param[1], handle);
  16         vbox_set_u32(&param[2], flags);
  17         vbox_set_u32(&param[3], size);
  18         vbox_set_ptr(&param[4], data, size, VBOX_DIR_INOUT);
  19
  20         return vbox_call(vboxfs_conn, VBOXFS_CALL_INFO, param, 5, NULL);
  21 }
  22
  23 /*
  24  * Query volume information.
  25  */
  26 int
  27 vboxfs_query_vol(char *path, vboxfs_volinfo_t *volinfo)
  28 {
  29         vboxfs_handle_t h;
  30         int r;
  31
  32         if ((r = vboxfs_open_file(path, O_RDONLY, 0, &h, NULL)) != OK)
  33                 return r;
  34
  35         r = vboxfs_getset_info(h, VBOXFS_INFO_GET | VBOXFS_INFO_VOLUME,
  36             volinfo, sizeof(*volinfo));
  37
  38         vboxfs_close_file(h);
  39
  40         return r;
  41 }
  42
  43 /*
  44  * Query volume information.
  45  */
  46 int
  47 vboxfs_queryvol(char *path, u64_t *free, u64_t *total)
  48 {
  49         vboxfs_volinfo_t volinfo;
  50         int r;
  51
  52         if ((r = vboxfs_query_vol(path, &volinfo)) != OK)
  53                 return r;
  54
  55         *free = volinfo.free;
  56         *total = volinfo.total;
  57         return OK;
  58 }