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13 General Public License for more details.
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22 * @file conversation/plugin_gnsrecord_conversation.c
23 * @brief gnsrecord plugin to provide the API for fundamental GNS records
24 * This includes the VPN record because GNS resolution
25 * is expected to understand VPN records and (if needed)
26 * map the result to A/AAAA.
27 * @author Christian Grothoff
31 #include "gnunet_util_lib.h"
32 #include "gnunet_gnsrecord_lib.h"
33 #include "gnunet_conversation_service.h"
34 #include "gnunet_gnsrecord_plugin.h"
38 * Convert the 'value' of a record to a string.
40 * @param cls closure, unused
41 * @param type type of the record
42 * @param data value in binary encoding
43 * @param data_size number of bytes in @a data
44 * @return NULL on error, otherwise human-readable representation of the value
47 conversation_value_to_string (void *cls,
56 case GNUNET_GNSRECORD_TYPE_PHONE:
58 const struct GNUNET_CONVERSATION_PhoneRecord *pr;
62 if (data_size != sizeof (struct GNUNET_CONVERSATION_PhoneRecord))
65 if (0 != ntohl (pr->version))
67 pkey = GNUNET_CRYPTO_eddsa_public_key_to_string (&pr->peer.public_key);
68 s = GNUNET_STRINGS_data_to_string_alloc (&pr->line_port,
69 sizeof (struct GNUNET_HashCode));
71 GNUNET_asprintf (&ret,
86 * Convert human-readable version of a 'value' of a record to the binary
89 * @param cls closure, unused
90 * @param type type of the record
91 * @param s human-readable string
92 * @param data set to value in binary encoding (will be allocated)
93 * @param data_size set to number of bytes in @a data
94 * @return #GNUNET_OK on success
97 conversation_string_to_value (void *cls,
104 return GNUNET_SYSERR;
107 case GNUNET_GNSRECORD_TYPE_PHONE:
109 struct GNUNET_CONVERSATION_PhoneRecord *pr;
112 struct GNUNET_PeerIdentity peer;
114 if ( (NULL == (dash = strchr (s, '-'))) ||
115 (1 != sscanf (s, "%128s-", line_port)) ||
117 GNUNET_CRYPTO_eddsa_public_key_from_string (dash + 1,
121 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
122 _("Unable to parse PHONE record `%s'\n"),
124 return GNUNET_SYSERR;
126 pr = GNUNET_new (struct GNUNET_CONVERSATION_PhoneRecord);
127 pr->version = htonl (1);
128 pr->reserved = htonl (0);
130 GNUNET_STRINGS_string_to_data (line_port,
133 sizeof (struct GNUNET_HashCode)))
135 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
136 _("Unable to parse PHONE record `%s'\n"),
139 return GNUNET_SYSERR;
143 *data_size = sizeof (struct GNUNET_CONVERSATION_PhoneRecord);
147 return GNUNET_SYSERR;
153 * Mapping of record type numbers to human-readable
160 { "PHONE", GNUNET_GNSRECORD_TYPE_PHONE },
166 * Convert a type name (i.e. "AAAA") to the corresponding number.
168 * @param cls closure, unused
169 * @param gns_typename name to convert
170 * @return corresponding number, UINT32_MAX on error
173 conversation_typename_to_number (void *cls,
174 const char *gns_typename)
179 while ( (name_map[i].name != NULL) &&
180 (0 != strcasecmp (gns_typename, name_map[i].name)) )
182 return name_map[i].number;
187 * Convert a type number (i.e. 1) to the corresponding type string (i.e. "A")
189 * @param cls closure, unused
190 * @param type number of a type to convert
191 * @return corresponding typestring, NULL on error
194 conversation_number_to_typename (void *cls,
200 while ( (name_map[i].name != NULL) &&
201 (type != name_map[i].number) )
203 return name_map[i].name;
208 * Entry point for the plugin.
211 * @return the exported block API
214 libgnunet_plugin_gnsrecord_conversation_init (void *cls)
216 struct GNUNET_GNSRECORD_PluginFunctions *api;
218 api = GNUNET_new (struct GNUNET_GNSRECORD_PluginFunctions);
219 api->value_to_string = &conversation_value_to_string;
220 api->string_to_value = &conversation_string_to_value;
221 api->typename_to_number = &conversation_typename_to_number;
222 api->number_to_typename = &conversation_number_to_typename;
228 * Exit point from the plugin.
230 * @param cls the return value from #libgnunet_plugin_block_test_init
234 libgnunet_plugin_gnsrecord_conversation_done (void *cls)
236 struct GNUNET_GNSRECORD_PluginFunctions *api = cls;
242 /* end of plugin_gnsrecord_conversation.c */