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/*
* Small test for checking if obtaining savedata, saving it to disk and using
* works correctly.
*/
/*
* Copyright © 2016-2017 The TokTok team.
* Copyright © 2016 Tox project.
*
* This file is part of Tox, the free peer to peer instant messenger.
*
* Tox is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Tox is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Tox. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "helpers.h"
#include "../toxencryptsave/toxencryptsave.h"
static const char *pphrase = "bar", *name = "foo", *savefile = "./save";
static void save_data_encrypted(void)
{
struct Tox_Options *options = tox_options_new(nullptr);
Tox *t = tox_new_log(options, nullptr, nullptr);
tox_options_free(options);
tox_self_set_name(t, (const uint8_t *)name, strlen(name), nullptr);
FILE *f = fopen(savefile, "w");
size_t size = tox_get_savedata_size(t);
uint8_t *clear = (uint8_t *)malloc(size);
/*this function does not write any data at all*/
tox_get_savedata(t, clear);
size += TOX_PASS_ENCRYPTION_EXTRA_LENGTH;
uint8_t *cipher = (uint8_t *)malloc(size);
TOX_ERR_ENCRYPTION eerr;
if (!tox_pass_encrypt(clear, size - TOX_PASS_ENCRYPTION_EXTRA_LENGTH, (const uint8_t *)pphrase, strlen(pphrase), cipher,
&eerr)) {
fprintf(stderr, "error: could not encrypt, error code %d\n", eerr);
exit(4);
}
size_t written_value = fwrite(cipher, sizeof(*cipher), size, f);
printf("written written_value = %u of %u\n", (unsigned)written_value, (unsigned)size);
free(cipher);
free(clear);
fclose(f);
tox_kill(t);
}
static void load_data_decrypted(void)
{
FILE *f = fopen(savefile, "r");
fseek(f, 0, SEEK_END);
long size = ftell(f);
fseek(f, 0, SEEK_SET);
uint8_t *cipher = (uint8_t *)malloc(size);
uint8_t *clear = (uint8_t *)malloc(size - TOX_PASS_ENCRYPTION_EXTRA_LENGTH);
size_t read_value = fread(cipher, sizeof(*cipher), size, f);
printf("read read_vavue = %u of %ld\n", (unsigned)read_value, size);
TOX_ERR_DECRYPTION derr;
if (!tox_pass_decrypt(cipher, size, (const uint8_t *)pphrase, strlen(pphrase), clear, &derr)) {
fprintf(stderr, "error: could not decrypt, error code %d\n", derr);
exit(3);
}
struct Tox_Options *options = tox_options_new(nullptr);
tox_options_set_savedata_type(options, TOX_SAVEDATA_TYPE_TOX_SAVE);
tox_options_set_savedata_data(options, clear, size);
TOX_ERR_NEW err;
Tox *t = tox_new_log(options, &err, nullptr);
tox_options_free(options);
if (t == nullptr) {
fprintf(stderr, "error: tox_new returned the error value %d\n", err);
return;
}
uint8_t readname[TOX_MAX_NAME_LENGTH];
tox_self_get_name(t, readname);
readname[tox_self_get_name_size(t)] = '\0';
if (strcmp((const char *)readname, name)) {
fprintf(stderr, "error: name returned by tox_self_get_name does not match expected result\n");
exit(2);
}
free(cipher);
free(clear);
fclose(f);
tox_kill(t);
}
int main(void)
{
setvbuf(stdout, nullptr, _IONBF, 0);
save_data_encrypted();
load_data_decrypted();
int ret = remove(savefile);
if (ret != 0) {
fprintf(stderr, "error: could not remove savefile\n");
}
return 0;
}
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