ServerSocket: move to libevent.a

1 files changed, 0 insertions, 485 deletions

diff --git a/src/ServerSocket.cxx b/src/ServerSocket.cxx
deleted file mode 100644
index a1e2ee01e..000000000
--- a/src/ServerSocket.cxx
+++ /dev/null
@@ -1,485 +0,0 @@
-/*
- * Copyright (C) 2003-2013 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-
-#ifdef HAVE_STRUCT_UCRED
-#define _GNU_SOURCE 1
-#endif
-
-#include "ServerSocket.hxx"
-#include "SocketUtil.hxx"
-#include "SocketError.hxx"
-#include "event/SocketMonitor.hxx"
-#include "resolver.h"
-#include "fd_util.h"
-
-#include <forward_list>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <assert.h>
-
-#ifdef WIN32
-#include <ws2tcpip.h>
-#include <winsock.h>
-#else
-#include <netinet/in.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <netdb.h>
-#endif
-
-#undef G_LOG_DOMAIN
-#define G_LOG_DOMAIN "listen"
-
-#define DEFAULT_PORT	6600
-
-struct OneServerSocket final : private SocketMonitor {
-	const server_socket &parent;
-
-	const unsigned serial;
-
-	char *path;
-
-	size_t address_length;
-	struct sockaddr *address;
-
-	OneServerSocket(EventLoop &_loop, const server_socket &_parent,
-			unsigned _serial,
-			const struct sockaddr *_address,
-			size_t _address_length)
-		:SocketMonitor(_loop),
-		 parent(_parent), serial(_serial),
-		 path(nullptr),
-		 address_length(_address_length),
-		 address((sockaddr *)g_memdup(_address, _address_length))
-	{
-		assert(_address != nullptr);
-		assert(_address_length > 0);
-	}
-
-	OneServerSocket(const OneServerSocket &other) = delete;
-	OneServerSocket &operator=(const OneServerSocket &other) = delete;
-
-	~OneServerSocket() {
-		g_free(path);
-		g_free(address);
-	}
-
-	bool Open(GError **error_r);
-
-	using SocketMonitor::Close;
-
-	char *ToString() const;
-
-	void SetFD(int _fd) {
-		SocketMonitor::Open(_fd);
-		SocketMonitor::ScheduleRead();
-	}
-
-	void Accept();
-
-private:
-	virtual bool OnSocketReady(unsigned flags) override;
-};
-
-struct server_socket {
-	EventLoop &loop;
-
-	server_socket_callback_t callback;
-	void *callback_ctx;
-
-	std::forward_list<OneServerSocket> sockets;
-
-	unsigned next_serial;
-
-	server_socket(EventLoop &_loop,
-		      server_socket_callback_t _callback, void *_callback_ctx)
-		:loop(_loop),
-		 callback(_callback), callback_ctx(_callback_ctx),
-		 next_serial(1) {}
-
-	void Close();
-};
-
-static GQuark
-server_socket_quark(void)
-{
-	return g_quark_from_static_string("server_socket");
-}
-
-struct server_socket *
-server_socket_new(EventLoop &loop,
-		  server_socket_callback_t callback, void *callback_ctx)
-{
-	return new server_socket(loop, callback, callback_ctx);
-}
-
-void
-server_socket_free(struct server_socket *ss)
-{
-	delete ss;
-}
-
-/**
- * Wraper for sockaddr_to_string() which never fails.
- */
-char *
-OneServerSocket::ToString() const
-{
-	char *p = sockaddr_to_string(address, address_length, nullptr);
-	if (p == nullptr)
-		p = g_strdup("[unknown]");
-	return p;
-}
-
-static int
-get_remote_uid(int fd)
-{
-#ifdef HAVE_STRUCT_UCRED
-	struct ucred cred;
-	socklen_t len = sizeof (cred);
-
-	if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &cred, &len) < 0)
-		return 0;
-
-	return cred.uid;
-#else
-#ifdef HAVE_GETPEEREID
-	uid_t euid;
-	gid_t egid;
-
-	if (getpeereid(fd, &euid, &egid) == 0)
-		return euid;
-#else
-	(void)fd;
-#endif
-	return -1;
-#endif
-}
-
-inline void
-OneServerSocket::Accept()
-{
-	struct sockaddr_storage peer_address;
-	size_t peer_address_length = sizeof(peer_address);
-	int peer_fd =
-		accept_cloexec_nonblock(Get(), (struct sockaddr*)&peer_address,
-					&peer_address_length);
-	if (peer_fd < 0) {
-		const SocketErrorMessage msg;
-		g_warning("accept() failed: %s", (const char *)msg);
-		return;
-	}
-
-	if (socket_keepalive(peer_fd)) {
-		const SocketErrorMessage msg;
-		g_warning("Could not set TCP keepalive option: %s",
-			  (const char *)msg);
-	}
-
-	parent.callback(peer_fd,
-			(const struct sockaddr*)&peer_address,
-			peer_address_length, get_remote_uid(peer_fd),
-			parent.callback_ctx);
-}
-
-bool
-OneServerSocket::OnSocketReady(gcc_unused unsigned flags)
-{
-	Accept();
-	return true;
-}
-
-inline bool
-OneServerSocket::Open(GError **error_r)
-{
-	assert(!IsDefined());
-
-	int _fd = socket_bind_listen(address->sa_family,
-				     SOCK_STREAM, 0,
-				     address, address_length, 5,
-				     error_r);
-	if (_fd < 0)
-		return false;
-
-	/* allow everybody to connect */
-
-	if (path != nullptr)
-		chmod(path, 0666);
-
-	/* register in the GLib main loop */
-
-	SetFD(_fd);
-
-	return true;
-}
-
-bool
-server_socket_open(struct server_socket *ss, GError **error_r)
-{
-	struct OneServerSocket *good = nullptr, *bad = nullptr;
-	GError *last_error = nullptr;
-
-	for (auto &i : ss->sockets) {
-		assert(i.serial > 0);
-		assert(good == nullptr || i.serial <= good->serial);
-
-		if (bad != nullptr && i.serial != bad->serial) {
-			server_socket_close(ss);
-			g_propagate_error(error_r, last_error);
-			return false;
-		}
-
-		GError *error = nullptr;
-		if (!i.Open(&error)) {
-			if (good != nullptr && good->serial == i.serial) {
-				char *address_string = i.ToString();
-				char *good_string = good->ToString();
-				g_warning("bind to '%s' failed: %s "
-					  "(continuing anyway, because "
-					  "binding to '%s' succeeded)",
-					  address_string, error->message,
-					  good_string);
-				g_free(address_string);
-				g_free(good_string);
-				g_error_free(error);
-			} else if (bad == nullptr) {
-				bad = &i;
-
-				char *address_string = i.ToString();
-				g_propagate_prefixed_error(&last_error, error,
-							   "Failed to bind to '%s': ",
-							   address_string);
-				g_free(address_string);
-			} else
-				g_error_free(error);
-			continue;
-		}
-
-		/* mark this socket as "good", and clear previous
-		   errors */
-
-		good = &i;
-
-		if (bad != nullptr) {
-			bad = nullptr;
-			g_error_free(last_error);
-			last_error = nullptr;
-		}
-	}
-
-	if (bad != nullptr) {
-		server_socket_close(ss);
-		g_propagate_error(error_r, last_error);
-		return false;
-	}
-
-	return true;
-}
-
-void
-server_socket::Close()
-{
-	for (auto &i : sockets)
-		i.Close();
-}
-
-void
-server_socket_close(struct server_socket *ss)
-{
-	ss->Close();
-}
-
-static OneServerSocket &
-server_socket_add_address(struct server_socket *ss,
-			  const struct sockaddr *address,
-			  size_t address_length)
-{
-	assert(ss != nullptr);
-
-	ss->sockets.emplace_front(ss->loop, *ss, ss->next_serial,
-				  address, address_length);
-
-	return ss->sockets.front();
-}
-
-bool
-server_socket_add_fd(struct server_socket *ss, int fd, GError **error_r)
-{
-	assert(ss != nullptr);
-	assert(fd >= 0);
-
-	struct sockaddr_storage address;
-	socklen_t address_length;
-	if (getsockname(fd, (struct sockaddr *)&address,
-			&address_length) < 0) {
-		SetSocketError(error_r);
-		g_prefix_error(error_r, "Failed to get socket address");
-		return false;
-	}
-
-	OneServerSocket &s =
-		server_socket_add_address(ss, (struct sockaddr *)&address,
-					  address_length);
-	s.SetFD(fd);
-
-	return true;
-}
-
-#ifdef HAVE_TCP
-
-/**
- * Add a listener on a port on all IPv4 interfaces.
- *
- * @param port the TCP port
- */
-static void
-server_socket_add_port_ipv4(struct server_socket *ss, unsigned port)
-{
-	struct sockaddr_in sin;
-	memset(&sin, 0, sizeof(sin));
-	sin.sin_port = htons(port);
-	sin.sin_family = AF_INET;
-	sin.sin_addr.s_addr = INADDR_ANY;
-
-	server_socket_add_address(ss, (const struct sockaddr *)&sin,
-				  sizeof(sin));
-}
-
-#ifdef HAVE_IPV6
-/**
- * Add a listener on a port on all IPv6 interfaces.
- *
- * @param port the TCP port
- */
-static void
-server_socket_add_port_ipv6(struct server_socket *ss, unsigned port)
-{
-	struct sockaddr_in6 sin;
-	memset(&sin, 0, sizeof(sin));
-	sin.sin6_port = htons(port);
-	sin.sin6_family = AF_INET6;
-
-	server_socket_add_address(ss, (const struct sockaddr *)&sin,
-				  sizeof(sin));
-}
-#endif /* HAVE_IPV6 */
-
-#endif /* HAVE_TCP */
-
-bool
-server_socket_add_port(struct server_socket *ss, unsigned port,
-		       GError **error_r)
-{
-#ifdef HAVE_TCP
-	if (port == 0 || port > 0xffff) {
-		g_set_error(error_r, server_socket_quark(), 0,
-			    "Invalid TCP port");
-		return false;
-	}
-
-#ifdef HAVE_IPV6
-	server_socket_add_port_ipv6(ss, port);
-#endif
-	server_socket_add_port_ipv4(ss, port);
-
-	++ss->next_serial;
-
-	return true;
-#else /* HAVE_TCP */
-	(void)ss;
-	(void)port;
-
-	g_set_error(error_r, server_socket_quark(), 0,
-		    "TCP support is disabled");
-	return false;
-#endif /* HAVE_TCP */
-}
-
-bool
-server_socket_add_host(struct server_socket *ss, const char *hostname,
-		       unsigned port, GError **error_r)
-{
-#ifdef HAVE_TCP
-	struct addrinfo *ai = resolve_host_port(hostname, port,
-						AI_PASSIVE, SOCK_STREAM,
-						error_r);
-	if (ai == nullptr)
-		return false;
-
-	for (const struct addrinfo *i = ai; i != nullptr; i = i->ai_next)
-		server_socket_add_address(ss, i->ai_addr, i->ai_addrlen);
-
-	freeaddrinfo(ai);
-
-	++ss->next_serial;
-
-	return true;
-#else /* HAVE_TCP */
-	(void)ss;
-	(void)hostname;
-	(void)port;
-
-	g_set_error(error_r, server_socket_quark(), 0,
-		    "TCP support is disabled");
-	return false;
-#endif /* HAVE_TCP */
-}
-
-bool
-server_socket_add_path(struct server_socket *ss, const char *path,
-		       GError **error_r)
-{
-#ifdef HAVE_UN
-	struct sockaddr_un s_un;
-
-	size_t path_length = strlen(path);
-	if (path_length >= sizeof(s_un.sun_path)) {
-		g_set_error(error_r, server_socket_quark(), 0,
-			    "UNIX socket path is too long");
-		return false;
-	}
-
-	unlink(path);
-
-	s_un.sun_family = AF_UNIX;
-	memcpy(s_un.sun_path, path, path_length + 1);
-
-	OneServerSocket &s =
-		server_socket_add_address(ss, (const struct sockaddr *)&s_un,
-					  sizeof(s_un));
-	s.path = g_strdup(path);
-
-	return true;
-#else /* !HAVE_UN */
-	(void)ss;
-	(void)path;
-
-	g_set_error(error_r, server_socket_quark(), 0,
-		    "UNIX domain socket support is disabled");
-	return false;
-#endif /* !HAVE_UN */
-}
-