str_list.c

  1 /* str_list.c - the opkg package management system
  2 
  3    Carl D. Worth
  4 
  5    Copyright (C) 2001 University of Southern California
  6 
  7    This program is free software; you can redistribute it and/or
  8    modify it under the terms of the GNU General Public License as
  9    published by the Free Software Foundation; either version 2, or (at
 10    your option) any later version.
 11 
 12    This program is distributed in the hope that it will be useful, but
 13    WITHOUT ANY WARRANTY; without even the implied warranty of
 14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 15    General Public License for more details.
 16 */
 17 
 18 #include "str_list.h"
 19 #include "libbb/libbb.h"
 20 
 21 void str_list_elt_init(str_list_elt_t * elt, char *data)
 22 {
 23         void_list_elt_init((void_list_elt_t *) elt, data);
 24 }
 25 
 26 void str_list_elt_deinit(str_list_elt_t * elt)
 27 {
 28         if (elt->data)
 29                 free(elt->data);
 30         void_list_elt_deinit((void_list_elt_t *) elt);
 31 }
 32 
 33 str_list_t *str_list_alloc()
 34 {
 35         str_list_t *list = xcalloc(1, sizeof(str_list_t));
 36         str_list_init(list);
 37         return list;
 38 }
 39 
 40 void str_list_init(str_list_t * list)
 41 {
 42         void_list_init((void_list_t *) list);
 43 }
 44 
 45 void str_list_deinit(str_list_t * list)
 46 {
 47         str_list_elt_t *elt;
 48         while (!void_list_empty(list)) {
 49                 elt = str_list_first(list);
 50                 if (!elt)
 51                         return;
 52                 list_del_init(&elt->node);
 53                 free(elt->data);
 54                 elt->data = NULL;
 55                 free(elt);
 56         }
 57 }
 58 
 59 void str_list_append(str_list_t * list, char *data)
 60 {
 61         void_list_append((void_list_t *) list, xstrdup(data));
 62 }
 63 
 64 str_list_elt_t *str_list_pop(str_list_t * list)
 65 {
 66         return (str_list_elt_t *) void_list_pop((void_list_t *) list);
 67 }
 68 
 69 void str_list_remove(str_list_t * list, str_list_elt_t ** iter)
 70 {
 71         char *str = void_list_remove((void_list_t *) list,
 72                                      (void_list_elt_t **) iter);
 73 
 74         if (str)
 75                 free(str);
 76 }
 77 
 78 void str_list_remove_elt(str_list_t * list, const char *target_str)
 79 {
 80         char *str = void_list_remove_elt((void_list_t *) list,
 81                                          (void *)target_str,
 82                                          (void_list_cmp_t) strcmp);
 83         if (str)
 84                 free(str);
 85 }
 86 
 87 str_list_elt_t *str_list_first(str_list_t * list)
 88 {
 89         return (str_list_elt_t *) void_list_first((void_list_t *) list);
 90 }
 91 
 92 str_list_elt_t *str_list_next(str_list_t * list, str_list_elt_t * node)
 93 {
 94         return (str_list_elt_t *) void_list_next((void_list_t *) list,
 95                                                  (void_list_elt_t *) node);
 96 }
 97 
 98 void str_list_purge(str_list_t * list)
 99 {
100         str_list_deinit(list);
101         free(list);
102 }
103
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Sources/opkg-lede/libopkg/str_list.c
