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author | Schanzenbach, Martin <mschanzenbach@posteo.de> | 2020-02-07 15:51:56 +0100 |
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committer | Schanzenbach, Martin <mschanzenbach@posteo.de> | 2020-02-09 20:38:11 +0100 |
commit | 5f9f9cae1714eb33e0ee9c824f3d88e6aab8cf63 (patch) | |
tree | a83fc7724ee2efbfee7d7a353b54930fb1d511b8 /src/reclaim/plugin_reclaim_attribute_basic.c | |
parent | 141a279fb55bc9b11aaa765ca3ad54689003e291 (diff) | |
download | gnunet-5f9f9cae1714eb33e0ee9c824f3d88e6aab8cf63.tar.gz gnunet-5f9f9cae1714eb33e0ee9c824f3d88e6aab8cf63.zip |
consolidate reclaim attribute lib
Diffstat (limited to 'src/reclaim/plugin_reclaim_attribute_basic.c')
-rw-r--r-- | src/reclaim/plugin_reclaim_attribute_basic.c | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/src/reclaim/plugin_reclaim_attribute_basic.c b/src/reclaim/plugin_reclaim_attribute_basic.c new file mode 100644 index 000000000..47fdd5f11 --- /dev/null +++ b/src/reclaim/plugin_reclaim_attribute_basic.c | |||
@@ -0,0 +1,180 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2013, 2014, 2016 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet 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 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file reclaim-attribute/plugin_reclaim_attribute_gnuid.c | ||
23 | * @brief reclaim-attribute-plugin-gnuid attribute plugin to provide the API for | ||
24 | * fundamental | ||
25 | * attribute types. | ||
26 | * | ||
27 | * @author Martin Schanzenbach | ||
28 | */ | ||
29 | #include "platform.h" | ||
30 | #include "gnunet_util_lib.h" | ||
31 | #include "gnunet_reclaim_plugin.h" | ||
32 | #include <inttypes.h> | ||
33 | |||
34 | |||
35 | /** | ||
36 | * Convert the 'value' of an attribute to a string. | ||
37 | * | ||
38 | * @param cls closure, unused | ||
39 | * @param type type of the attribute | ||
40 | * @param data value in binary encoding | ||
41 | * @param data_size number of bytes in @a data | ||
42 | * @return NULL on error, otherwise human-readable representation of the value | ||
43 | */ | ||
44 | static char * | ||
45 | basic_value_to_string (void *cls, | ||
46 | uint32_t type, | ||
47 | const void *data, | ||
48 | size_t data_size) | ||
49 | { | ||
50 | switch (type) | ||
51 | { | ||
52 | case GNUNET_RECLAIM_ATTRIBUTE_TYPE_STRING: | ||
53 | return GNUNET_strndup (data, data_size); | ||
54 | |||
55 | default: | ||
56 | return NULL; | ||
57 | } | ||
58 | } | ||
59 | |||
60 | |||
61 | /** | ||
62 | * Convert human-readable version of a 'value' of an attribute to the binary | ||
63 | * representation. | ||
64 | * | ||
65 | * @param cls closure, unused | ||
66 | * @param type type of the attribute | ||
67 | * @param s human-readable string | ||
68 | * @param data set to value in binary encoding (will be allocated) | ||
69 | * @param data_size set to number of bytes in @a data | ||
70 | * @return #GNUNET_OK on success | ||
71 | */ | ||
72 | static int | ||
73 | basic_string_to_value (void *cls, | ||
74 | uint32_t type, | ||
75 | const char *s, | ||
76 | void **data, | ||
77 | size_t *data_size) | ||
78 | { | ||
79 | if (NULL == s) | ||
80 | return GNUNET_SYSERR; | ||
81 | switch (type) | ||
82 | { | ||
83 | case GNUNET_RECLAIM_ATTRIBUTE_TYPE_STRING: | ||
84 | *data = GNUNET_strdup (s); | ||
85 | *data_size = strlen (s); | ||
86 | return GNUNET_OK; | ||
87 | |||
88 | default: | ||
89 | return GNUNET_SYSERR; | ||
90 | } | ||
91 | } | ||
92 | |||
93 | /** | ||
94 | * Mapping of attribute type numbers to human-readable | ||
95 | * attribute type names. | ||
96 | */ | ||
97 | static struct | ||
98 | { | ||
99 | const char *name; | ||
100 | uint32_t number; | ||
101 | } basic_name_map[] = { { "STRING", GNUNET_RECLAIM_ATTRIBUTE_TYPE_STRING }, | ||
102 | { NULL, UINT32_MAX } }; | ||
103 | |||
104 | |||
105 | /** | ||
106 | * Convert a type name to the corresponding number. | ||
107 | * | ||
108 | * @param cls closure, unused | ||
109 | * @param basic_typename name to convert | ||
110 | * @return corresponding number, UINT32_MAX on error | ||
111 | */ | ||
112 | static uint32_t | ||
113 | basic_typename_to_number (void *cls, const char *basic_typename) | ||
114 | { | ||
115 | unsigned int i; | ||
116 | |||
117 | i = 0; | ||
118 | while ((NULL != basic_name_map[i].name) && | ||
119 | (0 != strcasecmp (basic_typename, basic_name_map[i].name))) | ||
120 | i++; | ||
121 | return basic_name_map[i].number; | ||
122 | } | ||
123 | |||
124 | |||
125 | /** | ||
126 | * Convert a type number (i.e. 1) to the corresponding type string | ||
127 | * | ||
128 | * @param cls closure, unused | ||
129 | * @param type number of a type to convert | ||
130 | * @return corresponding typestring, NULL on error | ||
131 | */ | ||
132 | static const char * | ||
133 | basic_number_to_typename (void *cls, uint32_t type) | ||
134 | { | ||
135 | unsigned int i; | ||
136 | |||
137 | i = 0; | ||
138 | while ((NULL != basic_name_map[i].name) && (type != basic_name_map[i].number)) | ||
139 | i++; | ||
140 | return basic_name_map[i].name; | ||
141 | } | ||
142 | |||
143 | |||
144 | /** | ||
145 | * Entry point for the plugin. | ||
146 | * | ||
147 | * @param cls NULL | ||
148 | * @return the exported block API | ||
149 | */ | ||
150 | void * | ||
151 | libgnunet_plugin_reclaim_attribute_basic_init (void *cls) | ||
152 | { | ||
153 | struct GNUNET_RECLAIM_AttributePluginFunctions *api; | ||
154 | |||
155 | api = GNUNET_new (struct GNUNET_RECLAIM_AttributePluginFunctions); | ||
156 | api->value_to_string = &basic_value_to_string; | ||
157 | api->string_to_value = &basic_string_to_value; | ||
158 | api->typename_to_number = &basic_typename_to_number; | ||
159 | api->number_to_typename = &basic_number_to_typename; | ||
160 | return api; | ||
161 | } | ||
162 | |||
163 | |||
164 | /** | ||
165 | * Exit point from the plugin. | ||
166 | * | ||
167 | * @param cls the return value from #libgnunet_plugin_block_test_init() | ||
168 | * @return NULL | ||
169 | */ | ||
170 | void * | ||
171 | libgnunet_plugin_reclaim_attribute_basic_done (void *cls) | ||
172 | { | ||
173 | struct GNUNET_RECLAIM_AttributePluginFunctions *api = cls; | ||
174 | |||
175 | GNUNET_free (api); | ||
176 | return NULL; | ||
177 | } | ||
178 | |||
179 | |||
180 | /* end of plugin_reclaim_attribute_type_gnuid.c */ | ||