/**
Sets up the object.
- sets the IPs of the DYN DNS server
- if proxy server is set use it!
- ...
*/
RC_TYPE dyn_dns_init(DYN_DNS_CLIENT *p_self)
{
int i = 0;
if (p_self == NULL)
{
return RC_INVALID_POINTER;
}
if (p_self->initialized == TRUE)
{
return RC_OK;
}
p_self->abort_on_network_errors = FALSE;
p_self->force_addr_update = (p_self->total_iterations == 1) ? TRUE : FALSE;
do
{
DYNDNS_INFO_TYPE *info = &p_self->info[i];
if (strlen(info->proxy_server_name.name) > 0)
{
http_client_set_port(&p_self->http_to_ip_server[i], info->proxy_server_name.port);
http_client_set_remote_name(&p_self->http_to_ip_server[i], info->proxy_server_name.name);
http_client_set_port(&p_self->http_to_dyndns[i], info->proxy_server_name.port);
http_client_set_remote_name(&p_self->http_to_dyndns[i], info->proxy_server_name.name);
}
else
{
http_client_set_port(&p_self->http_to_ip_server[i], info->ip_server_name.port);
http_client_set_remote_name(&p_self->http_to_ip_server[i], info->ip_server_name.name);
http_client_set_port(&p_self->http_to_dyndns[i], info->dyndns_server_name.port);
http_client_set_remote_name(&p_self->http_to_dyndns[i], info->dyndns_server_name.name);
}
http_client_set_bind_iface(&p_self->http_to_dyndns[i], p_self->bind_interface);
http_client_set_bind_iface(&p_self->http_to_ip_server[i], p_self->bind_interface);
}
while (++i < p_self->info_count);
p_self->cmd = NO_CMD;
if (p_self->cmd_check_period == 0)
{
p_self->cmd_check_period = DYNDNS_DEFAULT_CMD_CHECK_PERIOD;
}
/* Reset to old value, if restarted by SIGHUP */
p_self->time_since_last_update = cached_time_since_last_update;
p_self->num_iterations = cached_num_iterations;
p_self->initialized = TRUE;
return RC_OK;
}
/**
Sets up the object.
- sets the IPs of the DYN DNS server
- if proxy server is set use it!
- ...
*/
int dyn_dns_init(ddns_t *ctx)
{
int i = 0;
if (!ctx)
return RC_INVALID_POINTER;
if (ctx->initialized == 1)
return 0;
ctx->force_addr_update = 0;
do {
ddns_info_t *info = &ctx->info[i];
if (strlen(info->proxy_server_name.name)) {
http_client_set_port(&ctx->http_to_ip_server[i], info->proxy_server_name.port);
http_client_set_remote_name(&ctx->http_to_ip_server[i], info->proxy_server_name.name);
http_client_set_port(&ctx->http_to_dyndns[i], info->proxy_server_name.port);
http_client_set_remote_name(&ctx->http_to_dyndns[i], info->proxy_server_name.name);
} else {
http_client_set_port(&ctx->http_to_ip_server[i], info->ip_server_name.port);
http_client_set_remote_name(&ctx->http_to_ip_server[i], info->ip_server_name.name);
http_client_set_port(&ctx->http_to_dyndns[i], info->dyndns_server_name.port);
http_client_set_remote_name(&ctx->http_to_dyndns[i], info->dyndns_server_name.name);
}
http_client_set_bind_iface(&ctx->http_to_dyndns[i], ctx->bind_interface);
http_client_set_bind_iface(&ctx->http_to_ip_server[i], ctx->bind_interface);
}
while (++i < ctx->info_count);
ctx->cmd = NO_CMD;
if (ctx->cmd_check_period == 0) {
ctx->cmd_check_period = DYNDNS_DEFAULT_CMD_CHECK_PERIOD;
}
/* Restore values, if reset by SIGHUP. Initialize time from cache file at startup. */
ctx->time_since_last_update = cached_time_since_last_update;
ctx->num_iterations = cached_num_iterations;
ctx->initialized = 1;
return 0;
}
/*
Sets up the object.
- sets the IPs of the DYN DNS server
- if proxy server is set use it!
- ...
*/
RC_TYPE dyn_dns_init(DYN_DNS_CLIENT *p_self)
{
if (p_self == NULL)
{
return RC_INVALID_POINTER;
}
if (p_self->initialized == TRUE)
{
return RC_OK;
}
p_self->abort_on_network_errors = FALSE;
p_self->force_addr_update = FALSE;
if (strlen(p_self->info.proxy_server_name.name) > 0)
{
http_client_set_port(&p_self->http_to_ip_server, p_self->info.proxy_server_name.port);
http_client_set_remote_name(&p_self->http_to_ip_server, p_self->info.proxy_server_name.name);
http_client_set_port(&p_self->http_to_dyndns, p_self->info.proxy_server_name.port);
http_client_set_remote_name(&p_self->http_to_dyndns, p_self->info.proxy_server_name.name);
}
else
{
http_client_set_port(&p_self->http_to_ip_server, p_self->info.ip_server_name.port);
http_client_set_remote_name(&p_self->http_to_ip_server, p_self->info.ip_server_name.name);
http_client_set_port(&p_self->http_to_dyndns, p_self->info.dyndns_server_name.port);
http_client_set_remote_name(&p_self->http_to_dyndns, p_self->info.dyndns_server_name.name);
}
p_self->cmd = NO_CMD;
if (p_self->cmd_check_period == 0)
{
p_self->cmd_check_period = DYNDNS_DEFAULT_CMD_CHECK_PERIOD;
}
p_self->initialized = TRUE;
return RC_OK;
}
static RC_TYPE local_set_params(HTTP_CLIENT *p_self)
{
{
int timeout;
/*set default TCP specififc params*/
http_client_get_remote_timeout(p_self, &timeout);
if (timeout == 0)
{
http_client_set_remote_timeout(p_self, HTTP_DEFAULT_TIMEOUT);
}
}
{
int port;
http_client_get_port(p_self, &port);
if ( port == 0)
{
http_client_set_port(p_self, HTTP_DEFAULT_PORT);
}
}
return RC_OK;
}
static int get_req_for_freedns_server(DYN_DNS_CLIENT *p_self, int infcnt, int alcnt)
{
RC_TYPE rc = RC_OK, rc2;
HTTP_CLIENT http_to_dyndns;
HTTP_TRANSACTION http_tr;
char buffer[256];
unsigned char digestbuf[SHA1_DIGEST_BYTES];
char digeststr[SHA1_DIGEST_BYTES*2+1];
int i;
char *buf, *tmp, *line;
char host[256], updateurl[256];
char *hash = NULL;
if (p_self == NULL)
{
/* 0 == "No characters written" */
return 0;
}
// I know it's ugly, http client needs redesign.
do
{
if ((rc = http_client_construct(&http_to_dyndns)) != RC_OK)
break;
http_client_set_port(&http_to_dyndns, p_self->info[infcnt].dyndns_server_name.port);
http_client_set_remote_name(&http_to_dyndns, p_self->info[infcnt].dyndns_server_name.name);
http_client_set_bind_iface(&http_to_dyndns, p_self->bind_interface);
if ((rc = http_client_init(&http_to_dyndns, "Sending update URL query")) != RC_OK)
break;
snprintf(buffer, sizeof(buffer), "%s|%s",
p_self->info[infcnt].credentials.my_username,
p_self->info[infcnt].credentials.my_password);
sha1(buffer, strlen(buffer), digestbuf);
for (i = 0; i < SHA1_DIGEST_BYTES; i++)
sprintf(&digeststr[i*2], "%02x", digestbuf[i]);
snprintf(buffer, sizeof(buffer), "/api/?action=getdyndns&sha=%s", digeststr);
http_tr.req_len = sprintf(p_self->p_req_buffer, GENERIC_HTTP_REQUEST,
buffer, p_self->info[infcnt].dyndns_server_name.name);
http_tr.p_req = (char*) p_self->p_req_buffer;
http_tr.p_rsp = (char*) p_self->p_work_buffer;
http_tr.max_rsp_len = p_self->work_buffer_size - 1; /* Save place for a \0 at the end */
http_tr.rsp_len = 0;
rc = http_client_transaction(&http_to_dyndns, &http_tr);
http_tr.p_rsp[http_tr.rsp_len] = 0;
rc2 = http_client_shutdown(&http_to_dyndns);
http_client_destruct(&http_to_dyndns, 1);
if (rc != RC_OK || rc2 != RC_OK)
break;
if ((rc = is_http_status_code_ok(http_tr.status)) != RC_OK)
break;
tmp = buf = strdup(http_tr.p_rsp_body);
for (line = strsep(&tmp, "\n"); line; line = strsep(&tmp, "\n")) {
if (*line &&
sscanf(line, "%255[^|\r\n]|%*[^|\r\n]|%255[^|\r\n]", host, updateurl) == 2 &&
!strcmp(host, p_self->info[infcnt].alias_info[alcnt].names.name)) {
hash = strstr(updateurl, "?");
break;
}
}
free(buf);
if (!hash)
rc = RC_DYNDNS_RSP_NOTOK;
}
while (0);
if (rc != RC_OK)
{
logit(LOG_INFO, MODULE_TAG "Update URL query failed");
return 0;
}
return sprintf(p_self->p_req_buffer, FREEDNS_UPDATE_IP_REQUEST,
p_self->info[infcnt].dyndns_server_url,
hash,
p_self->info[infcnt].my_ip_address.name,
p_self->info[infcnt].dyndns_server_name.name);
}
static int get_req_for_freedns_server(ddns_t *ctx, int infcnt, int alcnt)
{
int rc = 0, rc2;
http_client_t client;
http_trans_t trans;
char buffer[256];
unsigned char digestbuf[SHA1_DIGEST_BYTES];
char digeststr[SHA1_DIGEST_BYTES * 2 + 1];
int i;
char *buf, *tmp, *line;
char host[256], updateurl[256];
char *hash = NULL;
if (ctx == NULL) {
/* 0 == "No characters written" */
return 0;
}
// I know it's ugly, http client needs redesign.
do {
if ((rc = http_client_construct(&client)) != 0)
break;
http_client_set_port(&client, ctx->info[infcnt].dyndns_server_name.port);
http_client_set_remote_name(&client, ctx->info[infcnt].dyndns_server_name.name);
http_client_set_bind_iface(&client, ctx->bind_interface);
if ((rc = http_client_init(&client, "Sending update URL query")) != 0)
break;
snprintf(buffer, sizeof(buffer), "%s|%s",
ctx->info[infcnt].creds.username, ctx->info[infcnt].creds.password);
sha1((unsigned char *)buffer, strlen(buffer), digestbuf);
for (i = 0; i < SHA1_DIGEST_BYTES; i++)
sprintf(&digeststr[i * 2], "%02x", digestbuf[i]);
snprintf(buffer, sizeof(buffer), "/api/?action=getdyndns&sha=%s", digeststr);
trans.req_len = sprintf(ctx->request_buf, GENERIC_HTTP_REQUEST,
buffer, ctx->info[infcnt].dyndns_server_name.name);
trans.p_req = (char *)ctx->request_buf;
trans.p_rsp = (char *)ctx->work_buf;
trans.max_rsp_len = ctx->work_buflen - 1; /* Save place for a \0 at the end */
trans.rsp_len = 0;
rc = http_client_transaction(&client, &trans);
trans.p_rsp[trans.rsp_len] = 0;
rc2 = http_client_shutdown(&client);
http_client_destruct(&client, 1);
if (rc != 0 || rc2 != 0)
break;
if ((rc = is_http_status_code_ok(trans.status)) != 0)
break;
tmp = buf = strdup(trans.p_rsp_body);
for (line = strsep(&tmp, "\n"); line; line = strsep(&tmp, "\n")) {
if (*line &&
sscanf(line, "%255[^|\r\n]|%*[^|\r\n]|%255[^|\r\n]",
host, updateurl) == 2
&& !strcmp(host, ctx->info[infcnt].alias[alcnt].names.name)) {
hash = strstr(updateurl, "?");
break;
}
}
free(buf);
if (!hash)
rc = RC_DYNDNS_RSP_NOTOK;
}
while (0);
if (rc != 0) {
logit(LOG_INFO, "Update URL query failed");
return 0;
}
return sprintf(ctx->request_buf, FREEDNS_UPDATE_IP_REQUEST,
ctx->info[infcnt].dyndns_server_url,
hash, ctx->info[infcnt].my_ip_address.name, ctx->info[infcnt].dyndns_server_name.name);
}