libfstools/volume.c

   1 /*
   2  * Copyright (C) 2014 John Crispin <blogic@openwrt.org>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU Lesser General Public License version 2.1
   6  * as published by the Free Software Foundation
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  */
  13
  14 #include <sys/mount.h>
  15 #include <stdio.h>
  16 #include <stdlib.h>
  17
  18 #include "libfstools.h"
  19 #include "volume.h"
  20
  21 static LIST_HEAD(drivers);
  22
  23 void
  24 volume_register_driver(struct driver *d)
  25 {
  26         list_add(&d->list, &drivers);
  27 }
  28
  29 struct volume* volume_find(char *name)
  30 {
  31         struct volume *v = malloc(sizeof(struct volume));
  32         struct driver *d;
  33
  34         if (!v)
  35                 return NULL;
  36
  37         list_for_each_entry(d, &drivers, list) {
  38                 memset(v, 0, sizeof(struct volume));
  39
  40                 if (d->find && !d->find(v, name))
  41                         return v;
  42         }
  43
  44         free(v);
  45
  46         return NULL;
  47 }