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/* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2020, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* @file getinfo_geoip.c
* @brief GEOIP-related contoller GETINFO commands.
**/
#include "core/or/or.h"
#include "core/mainloop/connection.h"
#include "feature/control/control.h"
#include "feature/control/getinfo_geoip.h"
#include "lib/geoip/geoip.h"
/** Helper used to implement GETINFO ip-to-country/... controller command. */
int
getinfo_helper_geoip(control_connection_t *control_conn,
const char *question, char **answer,
const char **errmsg)
{
(void)control_conn;
if (!strcmpstart(question, "ip-to-country/")) {
int c;
sa_family_t family;
tor_addr_t addr;
question += strlen("ip-to-country/");
if (!strcmp(question, "ipv4-available") ||
!strcmp(question, "ipv6-available")) {
family = !strcmp(question, "ipv4-available") ? AF_INET : AF_INET6;
const int available = geoip_is_loaded(family);
tor_asprintf(answer, "%d", !! available);
return 0;
}
family = tor_addr_parse(&addr, question);
if (family != AF_INET && family != AF_INET6) {
*errmsg = "Invalid address family";
return -1;
}
if (!geoip_is_loaded(family)) {
*errmsg = "GeoIP data not loaded";
return -1;
}
if (family == AF_INET)
c = geoip_get_country_by_ipv4(tor_addr_to_ipv4h(&addr));
else /* AF_INET6 */
c = geoip_get_country_by_ipv6(tor_addr_to_in6(&addr));
*answer = tor_strdup(geoip_get_country_name(c));
}
return 0;
}
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