142 lines
3.3 KiB
C
142 lines
3.3 KiB
C
/*
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* Copyright (c) 2014 Håvard Pettersson <haavard.pettersson@gmail.com>
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*
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* This file is part of Tox-WeeChat.
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*
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* Tox-WeeChat is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Tox-WeeChat is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Tox-WeeChat. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <stdio.h>
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#include <weechat/weechat-plugin.h>
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#include <tox/tox.h>
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#include "twc.h"
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#include "twc-utils.h"
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/**
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* Convert a hex string to it's binary equivalent of max size bytes.
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*/
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void
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twc_hex2bin(const char *hex, size_t size, char *out)
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{
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const char *position = hex;
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size_t i;
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for (i = 0; i < size; ++i)
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{
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sscanf(position, "%2hhx", &out[i]);
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position += 2;
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}
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}
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/**
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* Convert size bytes to a hex string. out must be at lesat size * 2 + 1
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* bytes.
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*/
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void
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twc_bin2hex(const uint8_t *bin, size_t size, char *out)
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{
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char *position = out;
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size_t i;
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for (i = 0; i < size; ++i)
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{
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sprintf(position, "%02X", bin[i]);
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position += 2;
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}
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*position = 0;
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}
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/**
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* Return a null-terminated copy of str. Must be freed.
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*/
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char *
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twc_null_terminate(const uint8_t *str, size_t length)
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{
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char *str_null = malloc(length + 1);
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memcpy(str_null, str, length);
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str_null[length] = 0;
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return str_null;
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}
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/**
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* Get the null-terminated name of a Tox friend. Must be freed.
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*/
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char *
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twc_get_name_nt(Tox *tox, int32_t friend_number)
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{
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size_t length = tox_get_name_size(tox, friend_number);
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uint8_t name[length];
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// if no name, return client ID instead
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if (!length)
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return twc_get_friend_id_short(tox, friend_number);
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tox_get_name(tox, friend_number, name);
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return twc_null_terminate(name, length);
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}
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/**
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* Return the null-terminated status message of a Tox friend. Must be freed.
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*/
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char *
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twc_get_status_message_nt(Tox *tox, int32_t friend_number)
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{
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size_t length = tox_get_status_message_size(tox, friend_number);
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uint8_t message[length];
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tox_get_status_message(tox, friend_number, message, length);
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return twc_null_terminate(message, length);
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}
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/**
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* Return the users own name, null-terminated. Must be freed.
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*/
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char *
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twc_get_self_name_nt(Tox *tox)
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{
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size_t length = tox_get_self_name_size(tox);
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uint8_t name[length];
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tox_get_self_name(tox, name);
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return twc_null_terminate(name, length);
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}
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/**
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* Return a friend's Tox ID in short form. Return value must be freed.
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*/
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char *
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twc_get_friend_id_short(Tox *tox, int32_t friend_number)
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{
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uint8_t client_id[TOX_CLIENT_ID_SIZE];
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tox_get_client_id(tox, friend_number, client_id);
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// TODO: config
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size_t short_id_length = 8;
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char *hex_address = malloc(short_id_length + 1);
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twc_bin2hex(client_id,
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short_id_length / 2,
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hex_address);
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return hex_address;
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}
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