server_socket: convert to C++

1 files changed, 0 insertions, 483 deletions

diff --git a/src/server_socket.c b/src/server_socket.c
deleted file mode 100644
index 396399596..000000000
--- a/src/server_socket.c
+++ /dev/null
@@ -1,483 +0,0 @@
-/*
- * Copyright (C) 2003-2011 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 "server_socket.h"
-#include "socket_util.h"
-#include "resolver.h"
-#include "fd_util.h"
-#include "glib_socket.h"
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <string.h>
-#include <errno.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 one_socket {
-	struct one_socket *next;
-	struct server_socket *parent;
-
-	unsigned serial;
-
-	int fd;
-	guint source_id;
-
-	char *path;
-
-	size_t address_length;
-	struct sockaddr address;
-};
-
-struct server_socket {
-	server_socket_callback_t callback;
-	void *callback_ctx;
-
-	struct one_socket *sockets, **sockets_tail_r;
-	unsigned next_serial;
-};
-
-static GQuark
-server_socket_quark(void)
-{
-	return g_quark_from_static_string("server_socket");
-}
-
-struct server_socket *
-server_socket_new(server_socket_callback_t callback, void *callback_ctx)
-{
-	struct server_socket *ss = g_new(struct server_socket, 1);
-	ss->callback = callback;
-	ss->callback_ctx = callback_ctx;
-	ss->sockets = NULL;
-	ss->sockets_tail_r = &ss->sockets;
-	ss->next_serial = 1;
-	return ss;
-}
-
-void
-server_socket_free(struct server_socket *ss)
-{
-	server_socket_close(ss);
-
-	while (ss->sockets != NULL) {
-		struct one_socket *s = ss->sockets;
-		ss->sockets = s->next;
-
-		assert(s->fd < 0);
-
-		g_free(s->path);
-		g_free(s);
-	}
-
-	g_free(ss);
-}
-
-/**
- * Wraper for sockaddr_to_string() which never fails.
- */
-static char *
-one_socket_to_string(const struct one_socket *s)
-{
-	char *p = sockaddr_to_string(&s->address, s->address_length, NULL);
-	if (p == NULL)
-		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
-}
-
-static gboolean
-server_socket_in_event(G_GNUC_UNUSED GIOChannel *source,
-		       G_GNUC_UNUSED GIOCondition condition,
-		       gpointer data)
-{
-	struct one_socket *s = data;
-
-	struct sockaddr_storage address;
-	size_t address_length = sizeof(address);
-	int fd = accept_cloexec_nonblock(s->fd, (struct sockaddr*)&address,
-					 &address_length);
-	if (fd >= 0) {
-		if (socket_keepalive(fd))
-			g_warning("Could not set TCP keepalive option: %s",
-				  g_strerror(errno));
-		s->parent->callback(fd, (const struct sockaddr*)&address,
-				    address_length, get_remote_uid(fd),
-				    s->parent->callback_ctx);
-	} else {
-		g_warning("accept() failed: %s", g_strerror(errno));
-	}
-
-	return true;
-}
-
-static void
-set_fd(struct one_socket *s, int fd)
-{
-	assert(s != NULL);
-	assert(s->fd < 0);
-	assert(fd >= 0);
-
-	s->fd = fd;
-
-	GIOChannel *channel = g_io_channel_new_socket(s->fd);
-	s->source_id = g_io_add_watch(channel, G_IO_IN,
-				      server_socket_in_event, s);
-	g_io_channel_unref(channel);
-}
-
-bool
-server_socket_open(struct server_socket *ss, GError **error_r)
-{
-	struct one_socket *good = NULL, *bad = NULL;
-	GError *last_error = NULL;
-
-	for (struct one_socket *s = ss->sockets; s != NULL; s = s->next) {
-		assert(s->serial > 0);
-		assert(good == NULL || s->serial >= good->serial);
-		assert(s->fd < 0);
-
-		if (bad != NULL && s->serial != bad->serial) {
-			server_socket_close(ss);
-			g_propagate_error(error_r, last_error);
-			return false;
-		}
-
-		GError *error = NULL;
-		int fd = socket_bind_listen(s->address.sa_family,
-					    SOCK_STREAM, 0,
-					    &s->address, s->address_length, 5,
-					    &error);
-		if (fd < 0) {
-			if (good != NULL && good->serial == s->serial) {
-				char *address_string = one_socket_to_string(s);
-				char *good_string = one_socket_to_string(good);
-				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 == NULL) {
-				bad = s;
-
-				char *address_string = one_socket_to_string(s);
-				g_propagate_prefixed_error(&last_error, error,
-							   "Failed to bind to '%s': ",
-							   address_string);
-				g_free(address_string);
-			} else
-				g_error_free(error);
-			continue;
-		}
-
-		/* allow everybody to connect */
-
-		if (s->path != NULL)
-			chmod(s->path, 0666);
-
-		/* register in the GLib main loop */
-
-		set_fd(s, fd);
-
-		/* mark this socket as "good", and clear previous
-		   errors */
-
-		good = s;
-
-		if (bad != NULL) {
-			bad = NULL;
-			g_error_free(last_error);
-			last_error = NULL;
-		}
-	}
-
-	if (bad != NULL) {
-		server_socket_close(ss);
-		g_propagate_error(error_r, last_error);
-		return false;
-	}
-
-	return true;
-}
-
-void
-server_socket_close(struct server_socket *ss)
-{
-	for (struct one_socket *s = ss->sockets; s != NULL; s = s->next) {
-		if (s->fd < 0)
-			continue;
-
-		g_source_remove(s->source_id);
-		close_socket(s->fd);
-		s->fd = -1;
-	}
-}
-
-static struct one_socket *
-one_socket_new(unsigned serial, const struct sockaddr *address,
-	       size_t address_length)
-{
-	assert(address != NULL);
-	assert(address_length > 0);
-
-	struct one_socket *s = g_malloc(sizeof(*s) - sizeof(s->address) +
-					address_length);
-	s->next = NULL;
-	s->serial = serial;
-	s->fd = -1;
-	s->path = NULL;
-	s->address_length = address_length;
-	memcpy(&s->address, address, address_length);
-
-	return s;
-}
-
-bool
-server_socket_add_fd(struct server_socket *ss, int fd, GError **error_r)
-{
-	assert(ss != NULL);
-	assert(ss->sockets_tail_r != NULL);
-	assert(*ss->sockets_tail_r == NULL);
-	assert(fd >= 0);
-
-	struct sockaddr_storage address;
-	socklen_t address_length;
-	if (getsockname(fd, (struct sockaddr *)&address,
-			&address_length) < 0) {
-		g_set_error(error_r, server_socket_quark(), errno,
-			    "Failed to get socket address: %s",
-			    g_strerror(errno));
-		return false;
-	}
-
-	struct one_socket *s = one_socket_new(ss->next_serial,
-					      (struct sockaddr *)&address,
-					      address_length);
-	s->parent = ss;
-	*ss->sockets_tail_r = s;
-	ss->sockets_tail_r = &s->next;
-
-	set_fd(s, fd);
-
-	return true;
-}
-
-static struct one_socket *
-server_socket_add_address(struct server_socket *ss,
-			  const struct sockaddr *address,
-			  size_t address_length)
-{
-	assert(ss != NULL);
-	assert(ss->sockets_tail_r != NULL);
-	assert(*ss->sockets_tail_r == NULL);
-
-	struct one_socket *s = one_socket_new(ss->next_serial,
-					      address, address_length);
-	s->parent = ss;
-	*ss->sockets_tail_r = s;
-	ss->sockets_tail_r = &s->next;
-
-	return s;
-}
-
-#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 == NULL)
-		return false;
-
-	for (const struct addrinfo *i = ai; i != NULL; 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);
-
-	struct one_socket *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 */
-}
-