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ec684c1a MT |
1 | /* |
2 | libloc - A library to determine the location of someone on the Internet | |
3 | ||
4 | Copyright (C) 2019 IPFire Development Team <info@ipfire.org> | |
5 | ||
6 | This library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | This library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | */ | |
16 | ||
17 | #include <errno.h> | |
18 | #include <stdlib.h> | |
19 | #include <string.h> | |
20 | ||
21 | #include <loc/libloc.h> | |
22 | #include <loc/country.h> | |
23 | #include <loc/private.h> | |
24 | ||
25 | struct loc_country { | |
26 | struct loc_ctx* ctx; | |
27 | int refcount; | |
28 | ||
29 | char* code; | |
30 | char* continent_code; | |
31 | ||
32 | char* name; | |
33 | }; | |
34 | ||
35 | LOC_EXPORT int loc_country_new(struct loc_ctx* ctx, struct loc_country** country, const char* country_code) { | |
36 | struct loc_country* c = calloc(1, sizeof(*c)); | |
37 | if (!c) | |
38 | return -ENOMEM; | |
39 | ||
40 | c->ctx = loc_ref(ctx); | |
41 | c->refcount = 1; | |
42 | ||
43 | c->code = strdup(country_code); | |
44 | ||
45 | DEBUG(c->ctx, "Country %s allocated at %p\n", c->code, c); | |
46 | *country = c; | |
47 | ||
48 | return 0; | |
49 | } | |
50 | ||
51 | LOC_EXPORT struct loc_country* loc_country_ref(struct loc_country* country) { | |
52 | country->refcount++; | |
53 | ||
54 | return country; | |
55 | } | |
56 | ||
57 | static void loc_country_free(struct loc_country* country) { | |
58 | DEBUG(country->ctx, "Releasing country %s %p\n", country->code, country); | |
59 | ||
60 | if (country->code) | |
61 | free(country->code); | |
62 | ||
63 | if (country->continent_code) | |
64 | free(country->continent_code); | |
65 | ||
66 | if (country->name) | |
67 | free(country->name); | |
68 | ||
69 | loc_unref(country->ctx); | |
70 | free(country); | |
71 | } | |
72 | ||
73 | LOC_EXPORT struct loc_country* loc_country_unref(struct loc_country* country) { | |
74 | if (--country->refcount > 0) | |
75 | return NULL; | |
76 | ||
77 | loc_country_free(country); | |
78 | ||
79 | return NULL; | |
80 | } | |
81 | ||
82 | LOC_EXPORT const char* loc_country_get_code(struct loc_country* country) { | |
83 | return country->code; | |
84 | } | |
85 | ||
86 | LOC_EXPORT const char* loc_country_get_continent_code(struct loc_country* country) { | |
87 | return country->continent_code; | |
88 | } | |
89 | ||
90 | LOC_EXPORT int loc_country_set_continent_code(struct loc_country* country, const char* continent_code) { | |
91 | // XXX validate input | |
92 | ||
93 | // Free previous value | |
94 | if (country->continent_code) | |
95 | free(country->continent_code); | |
96 | ||
97 | country->continent_code = strdup(continent_code); | |
98 | ||
99 | return 0; | |
100 | } | |
101 | ||
102 | LOC_EXPORT const char* loc_country_get_name(struct loc_country* country) { | |
103 | return country->name; | |
104 | } | |
105 | ||
106 | LOC_EXPORT int loc_country_set_name(struct loc_country* country, const char* name) { | |
107 | if (country->name) | |
108 | free(country->name); | |
109 | ||
110 | if (name) | |
111 | country->name = strdup(name); | |
112 | ||
113 | return 0; | |
114 | } | |
115 | ||
af208e26 | 116 | LOC_EXPORT int loc_country_cmp(struct loc_country* country1, struct loc_country* country2) { |
ec684c1a MT |
117 | return strcmp(country1->code, country2->code); |
118 | } | |
119 | ||
120 | int loc_country_new_from_database_v0(struct loc_ctx* ctx, struct loc_stringpool* pool, | |
121 | struct loc_country** country, const struct loc_database_country_v0* dbobj) { | |
122 | char buffer[3]; | |
123 | ||
124 | // Read country code | |
a7a3d958 | 125 | loc_country_code_copy(buffer, dbobj->code); |
ec684c1a MT |
126 | |
127 | // Create a new country object | |
128 | int r = loc_country_new(ctx, country, buffer); | |
129 | if (r) | |
130 | return r; | |
131 | ||
132 | // Continent Code | |
a7a3d958 | 133 | loc_country_code_copy(buffer, dbobj->continent_code); |
ec684c1a MT |
134 | |
135 | r = loc_country_set_continent_code(*country, buffer); | |
136 | if (r) | |
137 | goto FAIL; | |
138 | ||
139 | // Set name | |
ec684c1a MT |
140 | const char* name = loc_stringpool_get(pool, be32toh(dbobj->name)); |
141 | if (name) { | |
142 | r = loc_country_set_name(*country, name); | |
143 | if (r) | |
144 | goto FAIL; | |
145 | } | |
ec684c1a MT |
146 | |
147 | return 0; | |
148 | ||
149 | FAIL: | |
150 | loc_country_unref(*country); | |
151 | return r; | |
152 | } | |
153 | ||
154 | int loc_country_to_database_v0(struct loc_country* country, | |
155 | struct loc_stringpool* pool, struct loc_database_country_v0* dbobj) { | |
156 | // Add country code | |
157 | for (unsigned int i = 0; i < 2; i++) { | |
158 | dbobj->code[i] = country->code[i] ? country->code[i] : '\0'; | |
159 | } | |
160 | ||
161 | // Add continent code | |
d7c9d57b MT |
162 | if (country->continent_code) { |
163 | for (unsigned int i = 0; i < 2; i++) { | |
164 | dbobj->continent_code[i] = country->continent_code[i] ? country->continent_code[i] : '\0'; | |
165 | } | |
ec684c1a MT |
166 | } |
167 | ||
168 | // Save the name string in the string pool | |
169 | off_t name = loc_stringpool_add(pool, country->name ? country->name : ""); | |
170 | dbobj->name = htobe32(name); | |
171 | ||
172 | return 0; | |
173 | } |