system/modules/ramdisk/dir.c

   1 /*
   2  * Copyright (c) 2008 The LOST Project. All rights reserved.
   3  *
   4  * This code is derived from software contributed to the LOST Project
   5  * by Alexander Siol and Janosch Graef.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *     This product includes software developed by the LOST Project
  18  *     and its contributors.
  19  * 4. Neither the name of the LOST Project nor the names of its
  20  *    contributors may be used to endorse or promote products derived
  21  *    from this software without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  24  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  25  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  26  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
  27  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  28  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  29  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  30  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  31  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  32  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  33  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34  */
  35 #include <string.h>
  36
  37 #include "cdi/lists.h"
  38
  39 #include "ramdisk_cdi.h"
  40
  41
  42 cdi_list_t ramdisk_fs_dir_list(struct cdi_fs_stream* stream)
  43 {
  44     return stream->res->children;
  45 }
  46
  47 int ramdisk_fs_dir_create_child(struct cdi_fs_stream* stream, const char* name,
  48                              struct cdi_fs_res* parent)
  49 {
  50     struct ramdisk_fs_res* res = malloc(sizeof(*res));
  51     struct ramdisk_fs_res* parent_res = (struct ramdisk_fs_res*) parent;
  52
  53     memset(res, 0, sizeof(*res));
  54
  55     res->res.loaded = 1;
  56     res->res.name = strdup(name);
  57     res->res.res = &ramdisk_fs_res;
  58     res->res.children = cdi_list_create();
  59     res->res.link_path = NULL;
  60     res->creation_time = 0;
  61
  62     cdi_list_push(parent_res->res.children, res);
  63     res->res.parent = parent;
  64
  65     stream->res = (struct cdi_fs_res*) res;
  66     return 1;
  67 }