lib/libvboxfs/link.c

   1 /* Part of libvboxfs - (c) 2012, D.C. van Moolenbroek */
   2
   3 #include "inc.h"
   4
   5 /*
   6  * Create a directory.
   7  */
   8 int
   9 vboxfs_mkdir(char *path, int mode)
  10 {
  11         vboxfs_handle_t h;
  12         int r;
  13
  14         assert(S_ISDIR(mode));
  15
  16         if ((r = vboxfs_open_file(path, O_CREAT | O_EXCL | O_WRONLY, mode, &h,
  17            NULL)) != OK)
  18                 return r;
  19
  20         vboxfs_close_file(h);
  21
  22         return r;
  23 }
  24
  25 /*
  26  * Remove a file or directory.
  27  */
  28 static int
  29 remove_file(char *path, int dir)
  30 {
  31         vbox_param_t param[3];
  32         vboxfs_path_t pathbuf;
  33         int r;
  34
  35         if ((r = vboxfs_set_path(&pathbuf, path)) != OK)
  36                 return r;
  37
  38         /* FIXME: symbolic links are not supported at all yet */
  39         vbox_set_u32(&param[0], vboxfs_root);
  40         vbox_set_ptr(&param[1], &pathbuf, vboxfs_get_path_size(&pathbuf),
  41             VBOX_DIR_OUT);
  42         vbox_set_u32(&param[2], dir ? VBOXFS_REMOVE_DIR : VBOXFS_REMOVE_FILE);
  43
  44         return vbox_call(vboxfs_conn, VBOXFS_CALL_REMOVE, param, 3, NULL);
  45 }
  46
  47 /*
  48  * Unlink a file.
  49  */
  50 int
  51 vboxfs_unlink(char *path)
  52 {
  53
  54         return remove_file(path, FALSE /*dir*/);
  55 }
  56
  57 /*
  58  * Remove a directory.
  59  */
  60 int
  61 vboxfs_rmdir(char *path)
  62 {
  63
  64         return remove_file(path, TRUE /*dir*/);
  65 }
  66
  67 /*
  68  * Rename a file or directory.
  69  */
  70 static int
  71 rename_file(char *opath, char *npath, int dir)
  72 {
  73         vbox_param_t param[4];
  74         vboxfs_path_t opathbuf, npathbuf;
  75         u32_t flags;
  76         int r;
  77
  78         if ((r = vboxfs_set_path(&opathbuf, opath)) != OK)
  79                 return r;
  80
  81         if ((r = vboxfs_set_path(&npathbuf, npath)) != OK)
  82                 return r;
  83
  84         flags = dir ? VBOXFS_RENAME_DIR : VBOXFS_RENAME_FILE;
  85         flags |= VBOXFS_RENAME_REPLACE;
  86
  87         vbox_set_u32(&param[0], vboxfs_root);
  88         vbox_set_ptr(&param[1], &opathbuf, vboxfs_get_path_size(&opathbuf),
  89             VBOX_DIR_OUT);
  90         vbox_set_ptr(&param[2], &npathbuf, vboxfs_get_path_size(&npathbuf),
  91             VBOX_DIR_OUT);
  92         vbox_set_u32(&param[3], flags);
  93
  94         return vbox_call(vboxfs_conn, VBOXFS_CALL_RENAME, param, 4, NULL);
  95 }
  96
  97 /*
  98  * Rename a file or directory.
  99  */
 100 int
 101 vboxfs_rename(char *opath, char *npath)
 102 {
 103         int r;
 104
 105         if ((r = rename_file(opath, npath, FALSE /*dir*/)) != EISDIR)
 106                 return r;
 107
 108         return rename_file(opath, npath, TRUE /*dir*/);
 109 }