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
str_list_elt_init(str_list_elt_t * elt,char * data)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
str_list_elt_deinit(str_list_elt_t * elt)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
str_list_alloc()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
str_list_init(str_list_t * list)40 void str_list_init(str_list_t * list)
41 {
42 void_list_init((void_list_t *) list);
43 }
44
str_list_deinit(str_list_t * list)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
str_list_append(str_list_t * list,char * data)59 void str_list_append(str_list_t * list, char *data)
60 {
61 void_list_append((void_list_t *) list, xstrdup(data));
62 }
63
str_list_pop(str_list_t * list)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
str_list_remove(str_list_t * list,str_list_elt_t ** iter)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
str_list_remove_elt(str_list_t * list,const char * target_str)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
str_list_first(str_list_t * list)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
str_list_next(str_list_t * list,str_list_elt_t * node)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
str_list_purge(str_list_t * list)98 void str_list_purge(str_list_t * list)
99 {
100 str_list_deinit(list);
101 free(list);
102 }
103