Inkay/src/patches/dns_hooks.cpp
Ash Logan 283dba27a6 fixup! feat(nncs): Add DNS patches for NNCS hook
Patches shouldn't do anything if not on the network, obvs
2024-04-07 16:18:46 +10:00

36 lines
1.3 KiB
C++

#include <wups.h>
#include <netdb.h>
#include "utils/logger.h"
#include "config.h"
#include <array>
const std::pair<const char *, const char *> dns_replacements[] = {
// NNCS servers. TODO use Pretendo instead of borrowing Nintendo's
{ "nncs1.app.nintendowifi.net", "nncs1-lp1.n.n.srv.nintendo.net" },
{ "nncs2.app.nintendowifi.net", "nncs2-lp1.n.n.srv.nintendo.net" },
};
static const char * replace_dns_name(const char *dns_name) {
DEBUG_FUNCTION_LINE("DNS request for %s", dns_name);
if (!Config::connect_to_network) return dns_name;
for (auto [original, replacement] : dns_replacements) {
if (strcmp(original, dns_name) == 0)
return replacement;
}
return dns_name;
}
DECL_FUNCTION(struct hostent *, gethostbyname, const char *dns_name) {
return real_gethostbyname(replace_dns_name(dns_name));
}
// might need a WUPS_MUST_REPLACE_FOR_PROCESS for Friends
WUPS_MUST_REPLACE(gethostbyname, WUPS_LOADER_LIBRARY_NSYSNET, gethostbyname);
DECL_FUNCTION(int, getaddrinfo, const char *node, const char *service, const struct addrinfo *hints, struct addrinfo **res) {
return real_getaddrinfo(replace_dns_name(node), service, hints, res);
}
WUPS_MUST_REPLACE(getaddrinfo, WUPS_LOADER_LIBRARY_NSYSNET, getaddrinfo);