fs-state.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 <stdio.h>
  15 #include <string.h>
  16
  17 #include "fs-state.h"
  18
  19 static LIST_HEAD(backends);
  20
  21 void
  22 register_backend(struct backend *b)
  23 {
  24         list_add(&b->list, &backends);
  25 }
  26
  27 struct backend*
  28 find_backend(char *name)
  29 {
  30         struct backend *b;
  31
  32         list_for_each_entry(b, &backends, list)
  33                 if (!strcmp(name, b->name))
  34                         return b;
  35         return NULL;
  36 }
  37
  38 static void
  39 help(void)
  40 {
  41         struct backend *b;
  42
  43         list_for_each_entry(b, &backends, list) {
  44                 int i;
  45
  46                 if (b->desc)
  47                         fprintf(stderr, "-> %s\n", b->name);
  48                 for (i = 0; i < b->num_handlers; i++)
  49                         if (b->handlers[i].desc)
  50                                 fprintf(stderr, "--> %s\n", b->handlers[i].name);
  51         }
  52 }
  53
  54 int
  55 main(int argc, char **argv)
  56 {
  57         struct backend *b;
  58
  59         if (argc > 1) list_for_each_entry(b, &backends, list) {
  60                 int i;
  61
  62                 srand(time(NULL));
  63
  64                 if (strcmp(argv[1], b->name))
  65                         continue;
  66
  67                 for (i = 0; i < b->num_handlers; i++)
  68                         if (!strcmp(argv[2], b->handlers[i].name))
  69                                 return b->handlers[i].cli(argc - 2, &argv[2]);
  70
  71                 if (b->cli)
  72                         return b->cli(argc - 1, &argv[1]);
  73
  74                 break;
  75         }
  76
  77         help();
  78
  79         return 0;
  80 }