mirror of https://github.com/irungentoo/toxcore
116 lines
3.0 KiB
C
116 lines
3.0 KiB
C
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#include "../toxdns/toxdns.h"
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#include "../toxcore/tox.h"
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#include "../toxcore/network.h"
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#include "misc_tools.c"
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#if defined(_WIN32) || defined(__WIN32__) || defined (WIN32)
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#define c_sleep(x) Sleep(1*x)
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#else
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#define c_sleep(x) usleep(1000*x)
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#endif
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uint32_t create_packet(uint8_t *packet, uint8_t *string, uint8_t str_len, uint8_t id)
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{
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memset(packet, 0, str_len + 13 + 16);
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packet[0] = id;
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packet[1] = rand();
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packet[5] = 1;
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packet[11] = 1;
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packet[12] = '.';
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memcpy(packet + 13, string, str_len);
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uint32_t i, c = 0;
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for (i = str_len + 12; i != 11; --i) {
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if (packet[i] == '.') {
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packet[i] = c;
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c = 0;
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} else {
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++c;
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}
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}
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packet[str_len + 13 + 2] = 16;
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packet[str_len + 13 + 4] = 1;
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packet[str_len + 13 + 7] = 0x29;
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packet[str_len + 13 + 8] = 16;
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packet[str_len + 13 + 12] = 0x80;
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return str_len + 13 + 16;
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}
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int main(int argc, char *argv[])
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{
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if (argc < 4) {
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printf("Usage: %s domain domain_public_key queried_username\nEX: %s utox.org D3154F65D28A5B41A05D4AC7E4B39C6B1C233CC857FB365C56E8392737462A12 username\n",
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argv[0], argv[0]);
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exit(0);
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}
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IP ip = {0};
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ip.family = AF_INET;
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sock_t sock = socket(ip.family, SOCK_DGRAM, IPPROTO_UDP);
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if (!sock_valid(sock))
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return -1;
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if (!addr_resolve_or_parse_ip(argv[1], &ip, 0))
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return -1;
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struct sockaddr_in target;
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size_t addrsize = sizeof(struct sockaddr_in);
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target.sin_family = AF_INET;
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target.sin_addr = ip.ip4.in_addr;
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target.sin_port = htons(53);
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uint8_t string[1024] = {0};
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void *d = tox_dns3_new(hex_string_to_bin(argv[2]));
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unsigned int i;
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uint32_t request_id;
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/*
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for (i = 0; i < 255; ++i) {
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tox_generate_dns3_string(d, string, sizeof(string), &request_id, string, i);
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printf("%s\n", string);
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}*/
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int len = tox_generate_dns3_string(d, string + 1, sizeof(string) - 1, &request_id, (uint8_t *)argv[3], strlen(argv[3]));
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if (len == -1)
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return -1;
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string[0] = '_';
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memcpy(string + len + 1, "._tox.", sizeof("._tox."));
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memcpy((char *)(string + len + 1 + sizeof("._tox.") - 1), argv[1], strlen(argv[1]));
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uint8_t packet[512];
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uint8_t id = rand();
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uint32_t p_len = create_packet(packet, string, strlen((char *)string), id);
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if (sendto(sock, (char *) packet, p_len, 0, (struct sockaddr *)&target, addrsize) != p_len)
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return -1;
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uint8_t buffer[512] = {};
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int r_len = recv(sock, buffer, sizeof(buffer), 0);
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if (r_len < (int)p_len)
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return -1;
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for (i = r_len - 1; i != 0 && buffer[i] != '='; --i);
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uint8_t tox_id[TOX_ADDRESS_SIZE];
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if (tox_decrypt_dns3_TXT(d, tox_id, buffer + i + 1, r_len - (i + 1), request_id) != 0)
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return -1;
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printf("The Tox id for username %s is:\n", argv[3]);
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//unsigned int i;
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for (i = 0; i < TOX_ADDRESS_SIZE; ++i) {
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printf("%02hhX", tox_id[i]);
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}
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printf("\n");
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return 0;
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}
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