static gint socket_fd_open_inet(gushort port)
{
SOCKET sock;
struct sockaddr_in addr;
gchar val;
sock = socket(AF_INET, SOCK_STREAM, 0);
if (G_UNLIKELY(! SOCKET_IS_VALID(sock)))
{
log_error("Failed to create IPC socket", -1);
return -1;
}
val = 1;
if (setsockopt(sock, SOL_SOCKET, SO_EXCLUSIVEADDRUSE, &val, sizeof(val)) < 0)
{
log_error("Failed to set IPC socket exclusive option", -1);
socket_fd_close(sock);
return -1;
}
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
if (bind(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0)
{
gint saved_errno = WSAGetLastError();
gchar* message = g_strdup_printf("Failed to bind IPC socket (127.0.0.1:%d)", port);
log_error(message, saved_errno);
g_free(message);
socket_fd_close(sock);
return -1;
}
if (listen(sock, 1) < 0)
{
gint saved_errno = WSAGetLastError();
gchar* message = g_strdup_printf("Failed to listen on IPC socket (127.0.0.1:%d)", port);
log_error(message, saved_errno);
g_free(message);
socket_fd_close(sock);
return -1;
}
return sock;
}
static gint socket_fd_connect_inet(gushort port)
{
SOCKET sock;
struct sockaddr_in addr;
sock = socket(AF_INET, SOCK_STREAM, 0);
if (G_UNLIKELY(! SOCKET_IS_VALID(sock)))
{
log_error("Failed to create IPC socket", -1);
return -1;
}
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0)
{
gint saved_errno = WSAGetLastError();
gchar* message = g_strdup_printf("Failed to connect to IPC socket (127.0.0.1:%d)", port);
log_error(message, saved_errno);
g_free(message);
socket_fd_close(sock);
return -1;
}
return sock;
}
gboolean socket_lock_input_cb(GIOChannel *source, GIOCondition condition, gpointer data)
{
gint fd, sock;
gchar buf[4096];
gchar *buf_to_free;
struct sockaddr_in caddr;
guint caddr_len;
GtkWidget *window = data;
caddr_len = sizeof(caddr);
fd = g_io_channel_unix_get_fd(source);
sock = accept(fd, (struct sockaddr *)&caddr, &caddr_len);
// first get the command
if (socket_fd_gets(sock, buf, sizeof(buf)) != -1 && strncmp(buf, "open", 4) == 0)
{
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1 && *buf != '.')
{
g_strstrip(buf); // remove \n char
buf_to_free = g_strdup (buf);
if (g_file_test(buf, G_FILE_TEST_IS_REGULAR | G_FILE_TEST_IS_SYMLINK))
xa_open_archive (NULL,buf_to_free);
}
gtk_window_deiconify (GTK_WINDOW(window));
}
socket_fd_close(sock);
return TRUE;
}
static gint socket_fd_connect_inet(gushort port)
{
SOCKET sock;
struct sockaddr_in addr;
sock = socket(AF_INET, SOCK_STREAM, 0);
if (G_UNLIKELY(! SOCKET_IS_VALID(sock)))
{
geany_debug("fd_connect_inet(): socket() failed: %d\n", WSAGetLastError());
return -1;
}
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0)
{
socket_fd_close(sock);
return -1;
}
return sock;
}
static gint socket_fd_open_inet(gushort port)
{
SOCKET sock;
struct sockaddr_in addr;
gchar val;
sock = socket(AF_INET, SOCK_STREAM, 0);
if (G_UNLIKELY(! SOCKET_IS_VALID(sock)))
{
geany_debug("fd_open_inet(): socket() failed: %d\n", WSAGetLastError());
return -1;
}
val = 1;
if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val)) < 0)
{
perror("setsockopt");
socket_fd_close(sock);
return -1;
}
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
if (bind(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0)
{
perror("bind");
socket_fd_close(sock);
return -1;
}
if (listen(sock, 1) < 0)
{
perror("listen");
socket_fd_close(sock);
return -1;
}
return sock;
}
static gint socket_fd_open_unix(const gchar *path)
{
gint sock;
struct sockaddr_un addr;
gint val;
sock = socket(PF_UNIX, SOCK_STREAM, 0);
if (sock < 0)
{
perror("sock_open_unix(): socket");
return -1;
}
val = 1;
if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val)) < 0)
{
perror("setsockopt");
socket_fd_close(sock);
return -1;
}
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, path, sizeof(addr.sun_path) - 1);
if (bind(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0)
{
perror("bind");
socket_fd_close(sock);
return -1;
}
if (listen(sock, 1) < 0)
{
perror("listen");
socket_fd_close(sock);
return -1;
}
return sock;
}
void eyed_loop(unsigned short port)
{
cio_err_t err;
socket_fd_t fd;
struct eyed_server server;
server.cam_dev = NULL;
if (cio_dispatcher_init(&server.disp) != CIO_ERR_SUCCESS)
return ;
if (cam_open_dev(&server.cam_dev, 0) != CAM_ERR_SUCCESS)
goto on_error;
fd = create_tcp_server(port);
if (socket_fd_is_invalid(fd))
goto on_error;
err = cio_handle_init(&server.handle,
fd,
NULL,
on_server_accept,
NULL,
on_server_close,
&server);
if (cio_err_is_failure(err))
goto on_error;
/* no longer belongs to us
*/
socket_fd_reset(fd);
err = cio_dispatcher_add_handle(&server.disp, &server.handle);
if (cio_err_is_failure(err))
goto on_error;
while (!cio_dispatcher_is_done(&server.disp))
cio_dispatcher_dispatch(&server.disp, (void*)&server);
on_error:
if (!socket_fd_is_invalid(fd))
socket_fd_close(fd);
if (server.cam_dev != NULL)
cam_close_dev(server.cam_dev);
cio_dispatcher_release(&server.disp);
}
static gint socket_fd_connect_unix(const gchar *path)
{
gint sock;
struct sockaddr_un addr;
sock = socket(PF_UNIX, SOCK_STREAM, 0);
if (sock < 0)
{
perror("fd_connect_unix(): socket");
return -1;
}
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, path, sizeof(addr.sun_path) - 1);
if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0)
{
socket_fd_close(sock);
return -1;
}
return sock;
}
static socket_fd_t create_tcp_server(unsigned short port)
{
static const int enabled = 1;
socket_fd_t fd;
struct sockaddr_in addr;
socket_fd_reset(fd);
memset(&addr, 0, sizeof(struct sockaddr_in));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = INADDR_ANY;
addr.sin_port = htons(port);
fd = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
if (socket_fd_is_invalid(fd))
{
DEBUG_ERROR("socket");
return fd;
}
if (bind(fd, (struct sockaddr*)&addr, sizeof(struct sockaddr_in)))
{
DEBUG_ERROR("bind()\n");
socket_fd_close(fd);
socket_fd_reset(fd);
return fd;
}
listen(fd, 5);
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &enabled, sizeof(enabled));
return fd;
}
/* (Unix domain) socket support; taken from Geany */
gint socket_init(gint argc, gchar **argv)
{
gint sock;
if (socket_info.file_name == NULL)
socket_info.file_name = g_strconcat ("/tmp/xarchiver_",g_get_user_name(),"_socket",NULL);
sock = socket_fd_connect_unix(socket_info.file_name);
if (sock < 0)
{
unlink(socket_info.file_name);
return socket_fd_open_unix(socket_info.file_name);
}
// remote command mode, here we have another running instance and want to use it
if (argc > 1)
{
gint i;
gchar *filename;
socket_fd_write_all(sock, "open\n", 5);
for(i = 1; i < argc && argv[i] != NULL; i++)
{
filename = argv[i];
if (filename != NULL)
{
socket_fd_write_all(sock, filename, strlen(filename));
socket_fd_write_all(sock, "\n", 1);
}
}
socket_fd_write_all(sock, ".\n", 2);
}
socket_fd_close(sock);
return -1;
}
gboolean socket_lock_input_cb(GIOChannel *source, GIOCondition condition, gpointer data)
{
gint fd, sock;
gchar buf[BUFFER_LENGTH];
gchar *command = NULL;
struct sockaddr_in caddr;
socklen_t caddr_len = sizeof(caddr);
GtkWidget *window = data;
gboolean popup = FALSE;
fd = g_io_channel_unix_get_fd(source);
sock = accept(fd, (struct sockaddr *)&caddr, &caddr_len);
/* first get the command */
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1)
{
command = g_strdup(buf);
geany_debug("Received IPC command from remote instance: %s", g_strstrip(command));
g_free(command);
if (strncmp(buf, "open", 4) == 0)
{
cl_options.readonly = strncmp(buf+4, "ro", 2) == 0; /* open in readonly? */
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1 && *buf != '.')
{
gsize buf_len = strlen(buf);
/* remove trailing newline */
if (buf_len > 0 && buf[buf_len - 1] == '\n')
buf[buf_len - 1] = '\0';
handle_input_filename(buf);
}
popup = TRUE;
}
else if (strncmp(buf, "doclist", 7) == 0)
{
gchar *doc_list = build_document_list();
if (!EMPTY(doc_list))
socket_fd_write_all(sock, doc_list, strlen(doc_list));
/* send ETX (end-of-text) so reader knows to stop reading */
socket_fd_write_all(sock, "\3", 1);
g_free(doc_list);
}
else if (strncmp(buf, "line", 4) == 0)
{
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1 && *buf != '.')
{
g_strstrip(buf); /* remove \n char */
/* on any error we get 0 which should be safe enough as fallback */
cl_options.goto_line = atoi(buf);
}
}
else if (strncmp(buf, "column", 6) == 0)
{
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1 && *buf != '.')
{
g_strstrip(buf); /* remove \n char */
/* on any error we get 0 which should be safe enough as fallback */
cl_options.goto_column = atoi(buf);
}
}
#ifdef G_OS_WIN32
else if (strncmp(buf, "window", 6) == 0)
{
# if GTK_CHECK_VERSION(3, 0, 0)
HWND hwnd = (HWND) gdk_win32_window_get_handle(gtk_widget_get_window(window));
# else
HWND hwnd = (HWND) gdk_win32_drawable_get_handle(
GDK_DRAWABLE(gtk_widget_get_window(window)));
# endif
socket_fd_write(sock, (gchar *)&hwnd, sizeof(hwnd));
}
#endif
}
if (popup)
{
#ifdef GDK_WINDOWING_X11
GdkWindow *x11_window = gtk_widget_get_window(window);
/* Set the proper interaction time on the window. This seems necessary to make
* gtk_window_present() really bring the main window into the foreground on some
* window managers like Gnome's metacity.
* Code taken from Gedit. */
# if GTK_CHECK_VERSION(3, 0, 0)
if (GDK_IS_X11_WINDOW(x11_window))
# endif
{
gdk_x11_window_set_user_time(x11_window, gdk_x11_get_server_time(x11_window));
}
#endif
gtk_window_present(GTK_WINDOW(window));
#ifdef G_OS_WIN32
gdk_window_show(gtk_widget_get_window(window));
#endif
}
socket_fd_close(sock);
return TRUE;
}
static gint socket_fd_open_unix(const gchar *path)
{
gint sock;
struct sockaddr_un addr;
gint val;
gchar *real_path;
sock = socket(PF_UNIX, SOCK_STREAM, 0);
if (sock < 0)
{
log_error("Failed to create IPC socket", errno);
return -1;
}
val = 1;
if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val)) < 0)
{
log_error("Failed to set IPC socket option", errno);
socket_fd_close(sock);
return -1;
}
/* fix for #1888561:
* in case the configuration directory is located on a network file system or any other
* file system which doesn't support sockets, we just link the socket there and create the
* real socket in the system's tmp directory assuming it supports sockets */
real_path = g_strdup_printf("%s%cgeany_socket.%08x",
g_get_tmp_dir(), G_DIR_SEPARATOR, g_random_int());
if (utils_is_file_writable(real_path) != 0)
{ /* if real_path is not writable for us, fall back to ~/.config/geany/geany_socket_*_* */
/* instead of creating a symlink and print a warning */
g_warning("Socket %s could not be written, using %s as fallback.", real_path, path);
SETPTR(real_path, g_strdup(path));
}
/* create a symlink in e.g. ~/.config/geany/geany_socket_hostname__0 to /tmp/geany_socket.499602d2 */
else if (symlink(real_path, path) != 0)
{
gint saved_errno = errno;
gchar* message = g_strdup_printf(
"Failed to create IPC socket symlink %s -> %s)",
real_path,
path);
log_error(message, saved_errno);
g_free(message);
socket_fd_close(sock);
return -1;
}
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, real_path, sizeof(addr.sun_path) - 1);
if (bind(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0)
{
gint saved_errno = errno;
gchar* message = g_strdup_printf("Failed to bind IPC socket (%s)", real_path);
log_error(message, saved_errno);
g_free(message);
socket_fd_close(sock);
return -1;
}
if (listen(sock, 1) < 0)
{
gint saved_errno = errno;
gchar* message = g_strdup_printf("Failed to listen on IPC socket (%s)", real_path);
log_error(message, saved_errno);
g_free(message);
socket_fd_close(sock);
return -1;
}
g_chmod(real_path, 0600);
g_free(real_path);
return sock;
}
/* (Unix domain) socket support to replace the old FIFO code
* (taken from Sylpheed, thanks)
* Returns the created socket, -1 if an error occurred or -2 if another socket exists and files
* were sent to it. */
gint socket_init(gint argc, gchar **argv)
{
gint sock;
#ifdef G_OS_WIN32
HANDLE hmutex;
HWND hwnd;
socket_init_win32();
hmutex = CreateMutexA(NULL, FALSE, "Geany");
if (! hmutex)
{
geany_debug("cannot create Mutex\n");
return -1;
}
if (GetLastError() != ERROR_ALREADY_EXISTS)
{
/* To support multiple instances with different configuration directories (as we do on
* non-Windows systems) we would need to use different port number s but it might be
* difficult to get a port number which is unique for a configuration directory (path)
* and which is unused. This port number has to be guessed by the first and new instance
* and the only data is the configuration directory path.
* For now we use one port number, that is we support only one instance at all. */
sock = socket_fd_open_inet(REMOTE_CMD_PORT);
if (sock < 0)
return -1;
return sock;
}
sock = socket_fd_connect_inet(REMOTE_CMD_PORT);
if (sock < 0)
return -1;
#else
gchar *display_name = NULL;
const gchar *hostname = g_get_host_name();
GdkDisplay *display = gdk_display_get_default();
gchar *p;
/* On OS X with quartz backend gdk_display_get_name() returns hostname
* using [NSHost currentHost] (it could return more or less whatever string
* as display name is a X11 specific thing). This call can lead to network
* query and block for several seconds so better skip it. */
#ifndef GDK_WINDOWING_QUARTZ
if (display != NULL)
display_name = g_strdup(gdk_display_get_name(display));
#endif
if (display_name == NULL)
display_name = g_strdup("NODISPLAY");
/* these lines are taken from dcopc.c in kdelibs */
if ((p = strrchr(display_name, '.')) > strrchr(display_name, ':') && p != NULL)
*p = '\0';
/* remove characters that may not be acceptable in a filename */
for (p = display_name; *p; p++)
{
if (*p == ':' || *p == '/')
*p = '_';
}
if (socket_info.file_name == NULL)
socket_info.file_name = g_strdup_printf("%s%cgeany_socket_%s_%s",
app->configdir, G_DIR_SEPARATOR, hostname, display_name);
g_free(display_name);
/* check whether the real user id is the same as this of the socket file */
check_socket_permissions();
sock = socket_fd_connect_unix(socket_info.file_name);
if (sock < 0)
{
remove_socket_link_full(); /* deletes the socket file and the symlink */
return socket_fd_open_unix(socket_info.file_name);
}
#endif
/* remote command mode, here we have another running instance and want to use it */
/* now we send the command line args */
if (argc > 1)
{
#ifdef G_OS_WIN32
/* first we send a request to retrieve the window handle and focus the window */
socket_fd_write_all(sock, "window\n", 7);
if (socket_fd_read(sock, (gchar *)&hwnd, sizeof(hwnd)) == sizeof(hwnd))
SetForegroundWindow(hwnd);
#endif
send_open_command(sock, argc, argv);
}
if (cl_options.list_documents)
{
socket_get_document_list(sock);
}
socket_fd_close(sock);
return -2;
}
gboolean socket_lock_input_cb(GIOChannel *source, GIOCondition condition, gpointer data)
{
gint fd, sock;
gchar buf[BUFFER_LENGTH];
struct sockaddr_in caddr;
socklen_t caddr_len = sizeof(caddr);
GtkWidget *window = data;
gboolean popup = FALSE;
fd = g_io_channel_unix_get_fd(source);
sock = accept(fd, (struct sockaddr *)&caddr, &caddr_len);
/* first get the command */
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1)
{
if (strncmp(buf, "open", 4) == 0)
{
cl_options.readonly = strncmp(buf+4, "ro", 2) == 0; /* open in readonly? */
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1 && *buf != '.')
{
handle_input_filename(g_strstrip(buf));
}
popup = TRUE;
}
else if (strncmp(buf, "doclist", 7) == 0)
{
gchar *doc_list = build_document_list();
if (NZV(doc_list))
socket_fd_write_all(sock, doc_list, strlen(doc_list));
else
/* send ETX (end-of-text) in case we have no open files, we must send anything
* otherwise the client would hang on reading */
socket_fd_write_all(sock, "\3", 1);
g_free(doc_list);
}
else if (strncmp(buf, "line", 4) == 0)
{
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1 && *buf != '.')
{
g_strstrip(buf); /* remove \n char */
/* on any error we get 0 which should be safe enough as fallback */
cl_options.goto_line = atoi(buf);
}
}
else if (strncmp(buf, "column", 6) == 0)
{
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1 && *buf != '.')
{
g_strstrip(buf); /* remove \n char */
/* on any error we get 0 which should be safe enough as fallback */
cl_options.goto_column = atoi(buf);
}
}
#ifdef G_OS_WIN32
else if (strncmp(buf, "window", 6) == 0)
{
HWND hwnd = (HWND) gdk_win32_drawable_get_handle(
GDK_DRAWABLE(gtk_widget_get_window(window)));
socket_fd_write(sock, (gchar *)&hwnd, sizeof(hwnd));
}
#endif
}
if (popup)
{
#ifdef GDK_WINDOWING_X11
/* Set the proper interaction time on the window. This seems necessary to make
* gtk_window_present() really bring the main window into the foreground on some
* window managers like Gnome's metacity.
* Code taken from Gedit. */
gdk_x11_window_set_user_time(gtk_widget_get_window(window),
gdk_x11_get_server_time(gtk_widget_get_window(window)));
#endif
gtk_window_present(GTK_WINDOW(window));
#ifdef G_OS_WIN32
gdk_window_show(gtk_widget_get_window(window));
#endif
}
socket_fd_close(sock);
return TRUE;
}
/* (Unix domain) socket support to replace the old FIFO code
* (taken from Sylpheed, thanks)
* Returns the created socket, -1 if an error occurred or -2 if another socket exists and files
* were sent to it. */
gint socket_init(gint argc, gchar **argv)
{
gint sock;
#ifdef G_OS_WIN32
HANDLE hmutex;
HWND hwnd;
socket_init_win32();
hmutex = CreateMutexA(NULL, FALSE, "Geany");
if (! hmutex)
{
geany_debug("cannot create Mutex\n");
return -1;
}
if (GetLastError() != ERROR_ALREADY_EXISTS)
{
/* To support multiple instances with different configuration directories (as we do on
* non-Windows systems) we would need to use different port number s but it might be
* difficult to get a port number which is unique for a configuration directory (path)
* and which is unused. This port number has to be guessed by the first and new instance
* and the only data is the configuration directory path.
* For now we use one port number, that is we support only one instance at all. */
sock = socket_fd_open_inet(REMOTE_CMD_PORT);
if (sock < 0)
return 0;
return sock;
}
sock = socket_fd_connect_inet(REMOTE_CMD_PORT);
if (sock < 0)
return -1;
#else
gchar *display_name = gdk_get_display();
gchar *hostname = utils_get_hostname();
gchar *p;
if (display_name == NULL)
display_name = g_strdup("NODISPLAY");
/* these lines are taken from dcopc.c in kdelibs */
if ((p = strrchr(display_name, '.')) > strrchr(display_name, ':') && p != NULL)
*p = '\0';
while ((p = strchr(display_name, ':')) != NULL)
*p = '_';
if (socket_info.file_name == NULL)
socket_info.file_name = g_strdup_printf("%s%cgeany_socket_%s_%s",
app->configdir, G_DIR_SEPARATOR, hostname, display_name);
g_free(display_name);
g_free(hostname);
/* check whether the real user id is the same as this of the socket file */
check_socket_permissions();
sock = socket_fd_connect_unix(socket_info.file_name);
if (sock < 0)
{
remove_socket_link_full(); /* deletes the socket file and the symlink */
return socket_fd_open_unix(socket_info.file_name);
}
#endif
/* remote command mode, here we have another running instance and want to use it */
#ifdef G_OS_WIN32
/* first we send a request to retrieve the window handle and focus the window */
socket_fd_write_all(sock, "window\n", 7);
if (socket_fd_read(sock, (gchar *)&hwnd, sizeof(hwnd)) == sizeof(hwnd))
SetForegroundWindow(hwnd);
#endif
/* now we send the command line args */
if (argc > 1)
{
send_open_command(sock, argc, argv);
}
if (cl_options.list_documents)
{
socket_get_document_list(sock);
}
socket_fd_close(sock);
return -2;
}
static void close_tcp_socket(socket_fd_t fd)
{
shutdown(fd, SHUT_RDWR);
socket_fd_close(fd);
socket_fd_reset(fd);
}