mirror of
https://github.com/hrydgard/ppsspp.git
synced 2026-09-04 03:35:19 +02:00
Henrik Rydgård
a0873e5b0e
naett has had a complete libcurl backend all along; we just never built it, so Linux ran with HTTPS_NOT_AVAILABLE. That means no homebrew store over HTTPS, and RetroAchievements talking to plain http://retroachievements.org. libcurl is loaded with dlopen rather than linked, the same way we handle the Vulkan loader, so it stays a soft dependency: we need the curl headers at build time, but a build made here still starts on a machine without libcurl installed - it just reports HTTPS as unavailable, exactly like today. Distro packagers get the behavior they'd expect either way, and certificate validation comes free from the system CA store. New net::HTTPSAvailable() answers "did that work", and SDLMain folds it into SYSPROP_SUPPORTS_HTTPS, which everything downstream already degrades on. Four fixes to the backend itself, all noted in ext/naett/README-ppsspp.md: - panic() called exit(1) on a pipe or curl_multi_perform failure. Taking the emulator down because a download failed isn't acceptable - the backend now disables itself and requests complete with naettGenericError. - CURLINFO_RESPONSE_CODE writes a long into res->code, which is an int. Eight bytes into four, getting away with it only because the next field absorbs the zeroes. - curl_easy_setopt is varargs and wants a long for these options; int literals and int variables are UB on LP64. - naettPlatformCloseResponse called through a null function pointer when libcurl was missing. Found by testing that path, which segfaulted. CI needs libcurl4-openssl-dev (curl-dev on Alpine) or it would quietly keep building without HTTPS.
50 lines
2.0 KiB
C++
50 lines
2.0 KiB
C++
#pragma once
|
|
|
|
#include <cstdint>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
struct addrinfo;
|
|
|
|
namespace net {
|
|
|
|
// All platforms should call these on process start and end.
|
|
void Init();
|
|
void Shutdown();
|
|
|
|
// Whether we have a working HTTPS backend. False if PPSSPP was built without one, and on
|
|
// Linux also if libcurl couldn't be loaded at runtime. Safe to call before Init().
|
|
// Platform ports should factor this into SYSPROP_SUPPORTS_HTTPS.
|
|
bool HTTPSAvailable();
|
|
|
|
enum class DNSType {
|
|
ANY = 0,
|
|
IPV4 = 1,
|
|
IPV6 = 2,
|
|
};
|
|
|
|
// This checks whether a TCP connection to host : port can be established within a given timeout.
|
|
// It does this by attempting a new, non - blocking TCP connect() and waiting for it to succeed or time out.
|
|
// The socket is closed immediately after the check.
|
|
// It does not inspect or detect existing connections from other applications; it only tests reachability by making its own connection attempt.
|
|
bool HostPortExists(const std::string &host, int port, int timeout_ms);
|
|
|
|
// Uses OS getaddrinfo to resolve an address. Blocking.
|
|
bool DNSResolve(const std::string &host, const std::string &service, addrinfo **res, std::string &error, DNSType type = DNSType::ANY);
|
|
// Call this when you're done using the result of DNSResolve.
|
|
void DNSResolveFree(addrinfo *res);
|
|
|
|
// Uses tricks like getifaddrs to get a list of local IPv4 addresses. Returns false on failure, true on success (even if the list is empty).
|
|
bool GetLocalIP4List(std::vector<std::string>& IP4s);
|
|
|
|
// IP address parser.
|
|
int inet_pton(int af, const char* src, void* dst);
|
|
|
|
// Does a DNS lookup without involving the OS, so you can ask any DNS server you want, instead of
|
|
// just the one configured in the OS. Also blocking, currently.
|
|
// NOTE: This contains an internal cache that cannot be invalidated currently. TODO: At least add a timeout,
|
|
// although a process restart will clear it up anyway so maybe not that important...
|
|
bool DirectDNSLookupIPV4(const char *dnsServer, const char *host, uint32_t *ipv4_addr);
|
|
|
|
} // namespace net
|