libopkg/cksum_list.c

   1 /* cksum_lis.c - the opkg package management system
   2
   3    Copyright (C) 2010,2011 Javier Palacios
   4
   5    This program is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU General Public License as
   7    published by the Free Software Foundation; either version 2, or (at
   8    your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful, but
  11    WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    General Public License for more details.
  14 */
  15
  16 #include "config.h"
  17
  18 #include <stdio.h>
  19
  20 #include "cksum_list.h"
  21 #include "libbb/libbb.h"
  22
  23
  24 int cksum_init(cksum_t *cksum, char **itemlist)
  25 {
  26     cksum->value = xstrdup(*itemlist++);
  27     cksum->size = atoi(*itemlist++);
  28     cksum->name = xstrdup(*itemlist++);
  29
  30     return 0;
  31 }
  32
  33 void cksum_deinit(cksum_t *cksum)
  34 {
  35     free (cksum->name);
  36     cksum->name = NULL;
  37
  38     free (cksum->value);
  39     cksum->value = NULL;
  40 }
  41
  42 void cksum_list_init(cksum_list_t *list)
  43 {
  44     void_list_init((void_list_t *) list);
  45 }
  46
  47 void cksum_list_deinit(cksum_list_t *list)
  48 {
  49     cksum_list_elt_t *iter, *n;
  50     cksum_t *cksum;
  51
  52     list_for_each_entry_safe(iter, n, &list->head, node) {
  53       cksum = (cksum_t *)iter->data;
  54       cksum_deinit(cksum);
  55
  56       /* malloced in cksum_list_append */
  57       free(cksum);
  58       iter->data = NULL;
  59     }
  60     void_list_deinit((void_list_t *) list);
  61 }
  62
  63 cksum_t *cksum_list_append(cksum_list_t *list, char **itemlist)
  64 {
  65     /* freed in cksum_list_deinit */
  66     cksum_t *cksum = xcalloc(1, sizeof(cksum_t));
  67     cksum_init(cksum, itemlist);
  68
  69     void_list_append((void_list_t *) list, cksum);
  70
  71     return cksum;
  72 }
  73
  74 const cksum_t *cksum_list_find(cksum_list_t *list, const char *name)
  75 {
  76      cksum_list_elt_t *iter;
  77      cksum_t *cksum;
  78
  79      list_for_each_entry(iter, &list->head, node) {
  80           cksum = (cksum_t *)iter->data;
  81           if (strcmp(cksum->name, name) == 0) {
  82                return cksum;
  83           }
  84      }
  85      return NULL;
  86 }
  87