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-rw-r--r--src/server_socket.c483
1 files changed, 0 insertions, 483 deletions
diff --git a/src/server_socket.c b/src/server_socket.c
deleted file mode 100644
index 39639959..00000000
--- 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 */
-}
-
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