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Diffstat (limited to 'x11vnc/appshare.c')
| -rw-r--r-- | x11vnc/appshare.c | 2124 |
1 files changed, 0 insertions, 2124 deletions
diff --git a/x11vnc/appshare.c b/x11vnc/appshare.c deleted file mode 100644 index 71cdf17..0000000 --- a/x11vnc/appshare.c +++ /dev/null @@ -1,2124 +0,0 @@ -/* - Copyright (C) 2002-2010 Karl J. Runge <runge@karlrunge.com> - All rights reserved. - -This file is part of x11vnc. - -x11vnc 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. - -x11vnc 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 x11vnc; if not, write to the Free Software -Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA -or see <http://www.gnu.org/licenses/>. - -In addition, as a special exception, Karl J. Runge -gives permission to link the code of its release of x11vnc with the -OpenSSL project's "OpenSSL" library (or with modified versions of it -that use the same license as the "OpenSSL" library), and distribute -the linked executables. You must obey the GNU General Public License -in all respects for all of the code used other than "OpenSSL". If you -modify this file, you may extend this exception to your version of the -file, but you are not obligated to do so. If you do not wish to do -so, delete this exception statement from your version. -*/ - -/* -- appshare.c -- */ - -#include "x11vnc.h" - -extern int pick_windowid(unsigned long *num); -extern char *get_xprop(char *prop, Window win); -extern int set_xprop(char *prop, Window win, char *value); -extern void set_env(char *name, char *value); -extern double dnow(void); - -static char *usage = -"\n" -" x11vnc -appshare: an experiment in application sharing via x11vnc.\n" -"\n" -#if !SMALL_FOOTPRINT -" Usage: x11vnc -appshare -id windowid -connect viewer_host:0\n" -" x11vnc -appshare -id pick -connect viewer_host:0\n" -"\n" -" Both the -connect option and the -id (or -sid) option are required.\n" -" (However see the -control option below that can replace -connect.)\n" -"\n" -" The VNC viewer at viewer_host MUST be in 'listen' mode. This is because\n" -" a new VNC connection (and viewer window) is established for each new\n" -" toplevel window that the application creates. For example:\n" -"\n" -" vncviewer -listen 0\n" -"\n" -" The '-connect viewer_host:0' indicates the listening viewer to connect to.\n" -"\n" -" No password should be used, otherwise it will need to be typed for each\n" -" new window (or one could use vncviewer -passwd file if the viewer supports\n" -" that.) For security an SSH tunnel can be used:\n" -"\n" -" ssh -R 5500:localhost:5500 user@server_host\n" -"\n" -" (then use -connect localhost:0)\n" -"\n" -" The -id/-sid option is as in x11vnc(1). It is either a numerical window\n" -" id or the string 'pick' which will ask the user to click on an app window.\n" -" To track more than one application at the same time, list their window ids\n" -" separated by commas (see also the 'add_app' command below.)\n" -"\n" -" Additional options:\n" -"\n" -" -h, -help Print this help.\n" -" -debug Print debugging output (same as X11VNC_APPSHARE_DEBUG=1)\n" -" -showmenus Create a new viewer window even if a new window is\n" -" completely inside of an existing one. Default is to\n" -" try to not show them in a new viewer window.\n" -" -noexit Do not exit if the main app (windowid/pick) window\n" -" goes away. Default is to exit.\n" -" -display dpy X DISPLAY to use.\n" -" -trackdir dir Set tracking directory to 'dir'. x11vnc -appshare does\n" -" better if it can communicate with the x11vnc's via a\n" -" file channel. By default a dir in /tmp is used, -trackdir\n" -" specifies another directory, or use 'none' to disable.\n" -" -args 'string' Pass options 'string' to x11vnc (e.g. -scale 3/4,\n" -" -viewonly, -wait, -once, etc.)\n" -" -env VAR=VAL Set environment variables on cmdline as in x11vnc.\n" -"\n" -" -control file This is a file that one edits to manage the appshare\n" -" mode. It replaces -connect. Lines beginning with '#'\n" -" are ignored. Initially start off with all of the\n" -" desired clients in the file, one per line. If you add\n" -" a new client-line, that client is connected to. If you\n" -" delete (or comment out) a client-line, that client is\n" -" disconnected (for this to work, do not disable trackdir.)\n" -"\n" -" You can also put cmd= lines in the control file to perform\n" -" different actions. These are supported:\n" -"\n" -" cmd=quit Disconnect all clients and exit.\n" -" cmd=restart Restart all of the x11vnc's.\n" -" cmd=noop Do nothing (e.g. ping)\n" -" cmd=x11vnc Run ps(1) looking for x11vnc's\n" -" cmd=help Print out help text.\n" -" cmd=add_window:win Add a window to be watched.\n" -" cmd=del_window:win Delete a window.\n" -" cmd=add_app:win Add an application to be watched.\n" -" cmd=del_app:win Delete an application.\n" -" cmd=add_client:host Add client ('internal' mode only)\n" -" cmd=del_client:host Del client ('internal' mode only)\n" -" cmd=list_windows List all tracked windows.\n" -" cmd=list_apps List all tracked applications.\n" -" cmd=list_clients List all connected clients.\n" -" cmd=list_all List all three.\n" -" cmd=print_logs Print out the x11vnc logfiles.\n" -" cmd=debug:n Set -debug to n (0 or 1).\n" -" cmd=showmenus:n Set -showmenus to n (0 or 1).\n" -" cmd=noexit:n Set -noexit to n (0 or 1).\n" -"\n" -" See the '-command internal' mode described below for a way\n" -" that tracks connected clients internally (not in a file.)\n" -"\n" -" In '-shell' mode (see below) you can type in the above\n" -" without the leading 'cmd='.\n" -"\n" -" For 'add_window' and 'del_window' the 'win' can be a\n" -" numerical window id or 'pick'. Same for 'add_app'. Be\n" -" sure to remove or comment out the add/del line quickly\n" -" (e.g. before picking) or it will be re-run the next time\n" -" the file is processed.\n" -"\n" -" If a file with the same name as the control file but\n" -" ending with suffix '.cmd' is found, then commands in it\n" -" (cmd=...) are processed and then the file is truncated.\n" -" This allows 'one time' command actions to be run. Any\n" -" client hostnames in the '.cmd' file are ignored. Also\n" -" see below for the X11VNC_APPSHARE_COMMAND X property\n" -" which is similar to '.cmd'\n" -"\n" -" -control internal Manage connected clients internally, see below.\n" -" -control shell Same as: -shell -control internal\n" -"\n" -" -delay secs Maximum timeout delay before re-checking the control file.\n" -" It can be a fraction, e.g. -delay 0.25 Default 0.5\n" -"\n" -" -shell Simple command line for '-control internal' mode (see the\n" -" details of this mode below.) Enter '?' for command list.\n" -"\n" -" To stop x11vnc -appshare press Ctrl-C, or (if -noexit not supplied) delete\n" -" the initial app window or exit the application. Or cmd=quit in -control mode.\n" -"\n" -#if 0 -" If you want your setup to survive periods of time where there are no clients\n" -" connected you will need to supply -args '-forever' otherwise the x11vnc's\n" -" will exit when the last client disconnects. Howerver, _starting_ with no\n" -" clients (e.g. empty control file) will work without -args '-forever'.\n" -"\n" -#endif -" In addition to the '.cmd' file channel, for faster response you can set\n" -" X11VNC_APPSHARE_COMMAND X property on the root window to the string that\n" -" would go into the '.cmd' file. For example:\n" -"\n" -" xprop -root -f X11VNC_APPSHARE_COMMAND 8s -set X11VNC_APPSHARE_COMMAND cmd=quit\n" -"\n" -" The property value will be set to 'DONE' after the command(s) is processed.\n" -"\n" -" If -control file is specified as 'internal' then no control file is used\n" -" and client tracking is done internally. You must add and delete clients\n" -" with the cmd=add_client:<client> and cmd=del_client:<client> commands.\n" -" Note that '-control internal' is required for '-shell' mode. Using\n" -" '-control shell' implies internal mode and -shell.\n" -"\n" -" Limitations:\n" -"\n" -" This is a quick lash-up, many things will not work properly.\n" -"\n" -" The main idea is to provide simple application sharing for two or more\n" -" parties to collaborate without needing to share the entire desktop. It\n" -" provides an improvement over -id/-sid that only shows a single window.\n" -"\n" -" Only reverse connections can be done. (Note: one can specify multiple\n" -" viewing hosts via: -connect host1,host2,host3 or add/remove them\n" -" dynamically as described above.)\n" -"\n" -" If a new window obscures an old one, you will see some or all of the\n" -" new window in the old one. The hope is this is a popup dialog or menu\n" -" that will go away soon. Otherwise a user at the physical display will\n" -" need to move it. (See also the SSVNC viewer features described below.) \n" -"\n" -" The viewer side cannot resize or make windows move on the physical\n" -" display. Again, a user at the physical display may need to help, or\n" -" use the SSVNC viewer (see Tip below.)\n" -"\n" -" Tip: If the application has its own 'resize corner', then dragging\n" -" it may successfully resize the application window.\n" -" Tip: Some desktop environments enable moving a window via, say,\n" -" Alt+Left-Button-Drag. One may be able to move a window this way.\n" -" Also, e.g., Alt+Right-Button-Drag may resize a window.\n" -" Tip: Clicking on part of an obscured window may raise it to the top.\n" -" Also, e.g., Alt+Middle-Button may toggle Raise/Lower.\n" -"\n" -" Tip: The SSVNC 1.0.25 unix and macosx vncviewer has 'EscapeKeys' hot\n" -" keys that will move, resize, raise, and lower the window via the\n" -" x11vnc -remote_prefix X11VNC_APPSHARE_CMD: feature. So in the\n" -" viewer while holding down Shift_L+Super_L+Alt_L the arrow keys\n" -" move the window, PageUp/PageDn/Home/End resize it, and - and +\n" -" raise and lower it. Key 'M' or Button1 moves the remote window\n" -" to the +X+Y of the viewer window. Key 'D' or Button3 deletes\n" -" the remote window.\n" -"\n" -" You can run the SSVNC vncviewer with options '-escape default',\n" -" '-multilisten' and '-env VNCVIEWER_MIN_TITLE=1'; or just run\n" -" with option '-appshare' to enable these and automatic placement.\n" -"\n" -" If any part of a window goes off of the display screen, then x11vnc\n" -" may be unable to poll it (without crashing), and so the window will\n" -" stop updating until the window is completely on-screen again.\n" -"\n" -" The (stock) vnc viewer does not know where to best position each new\n" -" viewer window; it likely centers each one (including when resized.)\n" -" Note: The SSVNC viewer in '-appshare' mode places them correctly.\n" -"\n" -" Deleting a viewer window does not delete the real window.\n" -" Note: The SSVNC viewer Shift+EscapeKeys+Button3 deletes it.\n" -"\n" -" Sometimes new window detection fails.\n" -"\n" -" Sometimes menu/popup detection fails.\n" -"\n" -" Sometimes the contents of a menu/popup window have blacked-out regions.\n" -" Try -sid or -showmenus as a workaround.\n" -"\n" -" If the application starts up a new application (a different process)\n" -" that new application will not be tracked (but, unfortunately, it may\n" -" cover up existing windows that are being tracked.) See cmd=add_window\n" -" and cmd=add_app described above.\n" -"\n" -#endif -; - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#define WMAX 192 -#define CMAX 128 -#define AMAX 32 - -static Window root = None; -static Window watch[WMAX]; -static Window apps[WMAX]; -static int state[WMAX]; -static char *clients[CMAX]; -static XWindowAttributes attr; -static char *ticker_atom_str = "X11VNC_APPSHARE_TICKER"; -static Atom ticker_atom = None; -static char *cmd_atom_str = "X11VNC_APPSHARE_COMMAND"; -static Atom cmd_atom = None; -static char *connect_to = NULL; -static char *x11vnc_args = ""; -static char *id_opt = "-id"; -static int skip_menus = 1; -static int exit_no_app_win = 1; -static int shell = 0; -static int tree_depth = 3; -static char *prompt = "appshare> "; -static char *x11vnc = "x11vnc"; -static char *control = NULL; -static char *trackdir = "unset"; -static char *trackpre = "/tmp/x11vnc-appshare-trackdir-tmp"; -static char *tracktmp = NULL; -static char unique_tag[100]; -static int use_forever = 1; -static int last_event_type = 0; -static pid_t helper_pid = 0; -static pid_t parent_pid = 0; -static double helper_delay = 0.5; -static int appshare_debug = 0; -static double start_time = 0.0; - -static void get_wm_name(Window win, char **name); -static int win_attr(Window win); -static int get_xy(Window win, int *x, int *y); -static Window check_inside(Window win); -static int ours(Window win); -static void destroy_win(Window win); -static int same_app(Window win, Window app); - -static void ff(void) { - fflush(stdout); - fflush(stderr); -} - -static int find_win(Window win) { - int i; - for (i=0; i < WMAX; i++) { - if (watch[i] == win) { - return i; - } - } - return -1; -} - -static int find_app(Window app) { - int i; - for (i=0; i < AMAX; i++) { - if (apps[i] == app) { - return i; - } - } - return -1; -} - -static int find_client(char *cl) { - int i; - for (i=0; i < CMAX; i++) { - if (cl == NULL) { - if (clients[i] == NULL) { - return i; - } - continue; - } - if (clients[i] == NULL) { - continue; - } - if (!strcmp(clients[i], cl)) { - return i; - } - } - return -1; -} - -static int trackdir_pid(Window win) { - FILE *f; - int ln = 0, pid = 0; - char line[1024]; - - if (!trackdir) { - return 0; - } - sprintf(tracktmp, "%s/0x%lx.log", trackdir, win); - f = fopen(tracktmp, "r"); - if (!f) { - return 0; - } - while (fgets(line, sizeof(line), f) != NULL) { - if (ln++ > 30) { - break; - } - if (strstr(line, "x11vnc version:")) { - char *q = strstr(line, "pid:"); - if (q) { - int p; - if (sscanf(q, "pid: %d", &p) == 1) { - if (p > 0) { - pid = p; - break; - } - } - } - } - } - fclose(f); - return pid; -} - -static void trackdir_cleanup(Window win) { - char *suffix[] = {"log", "connect", NULL}; - int i=0; - if (!trackdir) { - return; - } - while (suffix[i] != NULL) { - sprintf(tracktmp, "%s/0x%lx.%s", trackdir, win, suffix[i]); - if (appshare_debug && !strcmp(suffix[i], "log")) { - fprintf(stderr, "keeping: %s\n", tracktmp); - ff(); - } else { - if (appshare_debug) { - fprintf(stderr, "removing: %s\n", tracktmp); - ff(); - } - unlink(tracktmp); - } - i++; - } -} - -static void launch(Window win) { - char *cmd, *tmp, *connto, *name; - int len, timeo = 30, uf = use_forever; - int w = 0, h = 0, x = 0, y = 0; - - if (win_attr(win)) { - /* maybe switch to debug only. */ - w = attr.width; - h = attr.height; - get_xy(win, &x, &y); - } - - get_wm_name(win, &name); - - if (strstr(x11vnc_args, "-once")) { - uf = 0; - } - - if (control) { - int i = 0; - len = 0; - for (i=0; i < CMAX; i++) { - if (clients[i] != NULL) { - len += strlen(clients[i]) + 2; - } - } - connto = (char *) calloc(len, 1); - for (i=0; i < CMAX; i++) { - if (clients[i] != NULL) { - if (connto[0] != '\0') { - strcat(connto, ","); - } - strcat(connto, clients[i]); - } - } - } else { - connto = strdup(connect_to); - } - if (!strcmp(connto, "")) { - timeo = 0; - } - if (uf) { - timeo = 0; - } - - len = 1000 + strlen(x11vnc) + strlen(connto) + strlen(x11vnc_args) - + 3 * (trackdir ? strlen(trackdir) : 100); - - cmd = (char *) calloc(len, 1); - tmp = (char *) calloc(len, 1); - - sprintf(cmd, "%s %s 0x%lx -bg -quiet %s -nopw -rfbport 0 " - "-timeout %d -noxdamage -noxinerama -norc -repeat -speeds dsl " - "-env X11VNC_AVOID_WINDOWS=never -env X11VNC_APPSHARE_ACTIVE=1 " - "-env X11VNC_NO_CHECK_PM=1 -env %s -novncconnect -shared -nonap " - "-remote_prefix X11VNC_APPSHARE_CMD:", - x11vnc, id_opt, win, use_forever ? "-forever" : "-once", timeo, unique_tag); - - if (trackdir) { - FILE *f; - sprintf(tracktmp, " -noquiet -o %s/0x%lx.log", trackdir, win); - strcat(cmd, tracktmp); - sprintf(tracktmp, "%s/0x%lx.connect", trackdir, win); - f = fopen(tracktmp, "w"); - if (f) { - fprintf(f, "%s", connto); - fclose(f); - sprintf(tmp, " -connect_or_exit '%s'", tracktmp); - strcat(cmd, tmp); - } else { - sprintf(tmp, " -connect_or_exit '%s'", connto); - strcat(cmd, tmp); - } - } else { - if (!strcmp(connto, "")) { - sprintf(tmp, " -connect '%s'", connto); - } else { - sprintf(tmp, " -connect_or_exit '%s'", connto); - } - strcat(cmd, tmp); - } - if (uf) { - char *q = strstr(cmd, "-connect_or_exit"); - if (q) q = strstr(q, "_or_exit"); - if (q) { - unsigned int i; - for (i=0; i < strlen("_or_exit"); i++) { - *q = ' '; - q++; - } - } - } - - strcat(cmd, " "); - strcat(cmd, x11vnc_args); - - fprintf(stdout, "launching: x11vnc for window 0x%08lx %dx%d+%d+%d \"%s\"\n", - win, w, h, x, y, name); - - if (appshare_debug) { - fprintf(stderr, "\nrunning: %s\n\n", cmd); - } - ff(); - - system(cmd); - - free(cmd); - free(tmp); - free(connto); - free(name); -} - -static void stop(Window win) { - char *cmd; - int pid = -1; - int f = find_win(win); - if (f < 0 || win == None) { - return; - } - if (state[f] == 0) { - return; - } - if (trackdir) { - pid = trackdir_pid(win); - if (pid > 0) { - if (appshare_debug) {fprintf(stderr, - "sending SIGTERM to: %d\n", pid); ff();} - kill((pid_t) pid, SIGTERM); - } - } - - cmd = (char *) malloc(1000 + strlen(x11vnc)); - sprintf(cmd, "pkill -TERM -f '%s %s 0x%lx -bg'", x11vnc, id_opt, win); - if (appshare_debug) { - fprintf(stdout, "stopping: 0x%08lx - %s\n", win, cmd); - } else { - fprintf(stdout, "stopping: x11vnc for window 0x%08lx " - "(pid: %d)\n", win, pid); - } - ff(); - system(cmd); - - sprintf(cmd, "(sleep 0.25 2>/dev/null || sleep 1; pkill -KILL -f '%s " - "%s 0x%lx -bg') &", x11vnc, id_opt, win); - system(cmd); - - if (trackdir) { - trackdir_cleanup(win); - } - - free(cmd); -} - -static void kill_helper_pid(void) { - int status; - if (helper_pid <= 0) { - return; - } - fprintf(stderr, "stopping: helper_pid: %d\n", (int) helper_pid); - kill(helper_pid, SIGTERM); - usleep(50 * 1000); - kill(helper_pid, SIGKILL); - usleep(25 * 1000); -#if LIBVNCSERVER_HAVE_SYS_WAIT_H && LIBVNCSERVER_HAVE_WAITPID - waitpid(helper_pid, &status, WNOHANG); -#endif -} - -static void be_helper_pid(char *dpy_str) { - int cnt = 0; - int ms = (int) (1000 * helper_delay); - double last_check = 0.0; - - if (ms < 50) ms = 50; - -#if NO_X11 - fprintf(stderr, "be_helper_pid: not compiled with X11.\n"); -#else - dpy = XOpenDisplay(dpy_str); - ticker_atom = XInternAtom(dpy, ticker_atom_str, False); - - while (1) { - char tmp[32]; - sprintf(tmp, "HELPER_CNT_%08d", cnt++); - XChangeProperty(dpy, DefaultRootWindow(dpy), ticker_atom, XA_STRING, 8, - PropModeReplace, (unsigned char *) tmp, strlen(tmp)); - XFlush(dpy); - usleep(ms*1000); - if (parent_pid > 0) { - if(dnow() > last_check + 1.0) { - last_check = dnow(); - if (kill(parent_pid, 0) != 0) { - fprintf(stderr, "be_helper_pid: parent %d is gone.\n", (int) parent_pid); - break; - } - } - } - } -#endif - exit(0); -} - -static void print_logs(void) { - if (trackdir) { - DIR *dir = opendir(trackdir); - if (dir) { - struct dirent *dp; - while ( (dp = readdir(dir)) != NULL) { - FILE *f; - char *name = dp->d_name; - if (!strcmp(name, ".") || !strcmp(name, "..")) { - continue; - } - if (strstr(name, "0x") != name) { - continue; - } - if (strstr(name, ".log") == NULL) { - continue; - } - sprintf(tracktmp, "%s/%s", trackdir, name); - f = fopen(tracktmp, "r"); - if (f) { - char line[1024]; - fprintf(stderr, "===== x11vnc log %s =====\n", tracktmp); - while (fgets(line, sizeof(line), f) != NULL) { - fprintf(stderr, "%s", line); - } - fprintf(stderr, "\n"); - ff(); - fclose(f); - } - } - closedir(dir); - } - } -} - -static void appshare_cleanup(int s) { - int i; - if (s) {} - - if (use_forever) { - /* launch this backup in case they kill -9 us before we terminate everything */ - char cmd[1000]; - sprintf(cmd, "(sleep 3; pkill -TERM -f '%s') &", unique_tag); - if (appshare_debug) fprintf(stderr, "%s\n", cmd); - system(cmd); - } - - for (i=0; i < WMAX; i++) { - if (watch[i] != None) { - stop(watch[i]); - } - } - - if (trackdir) { - DIR *dir = opendir(trackdir); - if (dir) { - struct dirent *dp; - while ( (dp = readdir(dir)) != NULL) { - char *name = dp->d_name; - if (!strcmp(name, ".") || !strcmp(name, "..")) { - continue; - } - if (strstr(name, "0x") != name) { - fprintf(stderr, "skipping: %s\n", name); - continue; - } - if (!appshare_debug) { - fprintf(stderr, "removing: %s\n", name); - sprintf(tracktmp, "%s/%s", trackdir, name); - unlink(tracktmp); - } else { - if (appshare_debug) fprintf(stderr, "keeping: %s\n", name); - } - } - closedir(dir); - } - if (!appshare_debug) { - if (strstr(trackdir, trackpre) == trackdir) { - if (appshare_debug) fprintf(stderr, "removing: %s\n", trackdir); - rmdir(trackdir); - } - } - ff(); - } - - kill_helper_pid(); - -#if !NO_X11 - XCloseDisplay(dpy); -#endif - fprintf(stdout, "done.\n"); - ff(); - exit(0); -} - -static int trap_xerror(Display *d, XErrorEvent *error) { - if (d || error) {} - return 0; -} - -#if 0 -typedef struct { - int x, y; /* location of window */ - int width, height; /* width and height of window */ - int border_width; /* border width of window */ - int depth; /* depth of window */ - Visual *visual; /* the associated visual structure */ - Window root; /* root of screen containing window */ - int class; /* InputOutput, InputOnly*/ - int bit_gravity; /* one of bit gravity values */ - int win_gravity; /* one of the window gravity values */ - int backing_store; /* NotUseful, WhenMapped, Always */ - unsigned long backing_planes;/* planes to be preserved if possible */ - unsigned long backing_pixel;/* value to be used when restoring planes */ - Bool save_under; /* boolean, should bits under be saved? */ - Colormap colormap; /* color map to be associated with window */ - Bool map_installed; /* boolean, is color map currently installed*/ - int map_state; /* IsUnmapped, IsUnviewable, IsViewable */ - long all_event_masks; /* set of events all people have interest in*/ - long your_event_mask; /* my event mask */ - long do_not_propagate_mask; /* set of events that should not propagate */ - Bool override_redirect; /* boolean value for override-redirect */ - Screen *screen; /* back pointer to correct screen */ -} XWindowAttributes; -#endif - -static void get_wm_name(Window win, char **name) { - int ok; - -#if !NO_X11 - XErrorHandler old_handler = XSetErrorHandler(trap_xerror); - ok = XFetchName(dpy, win, name); - XSetErrorHandler(old_handler); -#endif - - if (!ok || *name == NULL) { - *name = strdup("unknown"); - } -} - -static int win_attr(Window win) { - int ok = 0; -#if !NO_X11 - XErrorHandler old_handler = XSetErrorHandler(trap_xerror); - ok = XGetWindowAttributes(dpy, win, &attr); - XSetErrorHandler(old_handler); -#endif - - if (ok) { - return 1; - } else { - return 0; - } -} - -static void win_select(Window win, int ignore) { -#if !NO_X11 - XErrorHandler old_handler = XSetErrorHandler(trap_xerror); - if (ignore) { - XSelectInput(dpy, win, 0); - } else { - XSelectInput(dpy, win, SubstructureNotifyMask); - } - XSync(dpy, False); - XSetErrorHandler(old_handler); -#endif -} - -static Window get_parent(Window win) { - int ok; - Window r, parent = None, *list = NULL; - unsigned int nchild; - -#if !NO_X11 - XErrorHandler old_handler = XSetErrorHandler(trap_xerror); - ok = XQueryTree(dpy, win, &r, &parent, &list, &nchild); - XSetErrorHandler(old_handler); - - if (!ok) { - return None; - } - if (list) { - XFree(list); - } -#endif - return parent; -} - -static int get_xy(Window win, int *x, int *y) { - Window cr; - Bool rc = False; -#if !NO_X11 - XErrorHandler old_handler = XSetErrorHandler(trap_xerror); - - rc = XTranslateCoordinates(dpy, win, root, 0, 0, x, y, &cr); - XSetErrorHandler(old_handler); -#endif - - if (!rc) { - return 0; - } else { - return 1; - } -} - -static Window check_inside(Window win) { - int i, nwin = 0; - int w, h, x, y; - int Ws[WMAX], Hs[WMAX], Xs[WMAX], Ys[WMAX]; - Window wins[WMAX]; - - if (!win_attr(win)) { - return None; - } - - /* store them first to give the win app more time to settle. */ - for (i=0; i < WMAX; i++) { - int X, Y; - Window wchk = watch[i]; - if (wchk == None) { - continue; - } - if (state[i] == 0) { - continue; - } - if (!win_attr(wchk)) { - continue; - } - if (!get_xy(wchk, &X, &Y)) { - continue; - } - - Xs[nwin] = X; - Ys[nwin] = Y; - Ws[nwin] = attr.width; - Hs[nwin] = attr.height; - wins[nwin] = wchk; - nwin++; - } - - if (nwin == 0) { - return None; - } - - if (!win_attr(win)) { - return None; - } - w = attr.width; - h = attr.height; - - get_xy(win, &x, &y); - if (!get_xy(win, &x, &y)) { - return None; - } - - for (i=0; i < nwin; i++) { - int X, Y, W, H; - Window wchk = wins[i]; - X = Xs[i]; - Y = Ys[i]; - W = Ws[i]; - H = Hs[i]; - - if (appshare_debug) fprintf(stderr, "check inside: 0x%lx %dx%d+%d+%d %dx%d+%d+%d\n", wchk, w, h, x, y, W, H, X, Y); - - if (X <= x && Y <= y) { - if (x + w <= X + W && y + h < Y + H) { - return wchk; - } - } - } - - return None; -} - -static void add_win(Window win) { - int idx = find_win(win); - int free = find_win(None); - if (idx >= 0) { - if (appshare_debug) {fprintf(stderr, "already watching window: 0x%lx\n", win); ff();} - return; - } - if (free < 0) { - fprintf(stderr, "ran out of slots for window: 0x%lx\n", win); ff(); - return; - } - - if (appshare_debug) {fprintf(stderr, "watching: 0x%lx at %d\n", win, free); ff();} - - watch[free] = win; - state[free] = 0; - - win_select(win, 0); -} - -static void delete_win(Window win) { - int i; - for (i=0; i < WMAX; i++) { - if (watch[i] == win) { - watch[i] = None; - state[i] = 0; - if (appshare_debug) {fprintf(stderr, "deleting: 0x%lx at %d\n", win, i); ff();} - } - } -} - -static void recurse_search(int level, int level_max, Window top, Window app, int *nw) { - Window w, r, parent, *list = NULL; - unsigned int nchild; - int ok = 0; - - if (appshare_debug > 1) { - fprintf(stderr, "level: %d level_max: %d top: 0x%lx app: 0x%lx\n", level, level_max, top, app); - } - if (level >= level_max) { - return; - } - -#if !NO_X11 - ok = XQueryTree(dpy, top, &r, &parent, &list, &nchild); - if (ok) { - int i; - for (i=0; i < (int) nchild; i++) { - w = list[i]; - if (w == None || find_win(w) >= 0) { - continue; - } - if (ours(w) && w != app) { - if (appshare_debug) fprintf(stderr, "add level %d 0x%lx %d/%d\n", - level, w, i, nchild); - add_win(w); - (*nw)++; - } - } - for (i=0; i < (int) nchild; i++) { - w = list[i]; - if (w == None || ours(w)) { - continue; - } - recurse_search(level+1, level_max, w, app, nw); - } - } - if (list) { - XFree(list); - } -#endif -} - -static void add_app(Window app) { - int i, nw = 0, free = -1; - XErrorHandler old_handler; - -#if !NO_X11 - i = find_app(app); - if (i >= 0) { - fprintf(stderr, "already tracking app: 0x%lx\n", app); - return; - } - for (i=0; i < AMAX; i++) { - if (same_app(apps[i], app)) { - fprintf(stderr, "already tracking app: 0x%lx via 0x%lx\n", app, apps[i]); - return; - } - } - free = find_app(None); - if (free < 0) { - fprintf(stderr, "ran out of app slots.\n"); - return; - } - apps[free] = app; - - add_win(app); - - old_handler = XSetErrorHandler(trap_xerror); - recurse_search(0, tree_depth, root, app, &nw); - XSetErrorHandler(old_handler); -#endif - fprintf(stderr, "tracking %d windows related to app window 0x%lx\n", nw, app); -} - -static void del_app(Window app) { - int i; - for (i=0; i < WMAX; i++) { - Window win = watch[i]; - if (win != None) { - if (same_app(app, win)) { - destroy_win(win); - } - } - } - for (i=0; i < AMAX; i++) { - Window app2 = apps[i]; - if (app2 != None) { - if (same_app(app, app2)) { - apps[i] = None; - } - } - } -} - -static void wait_until_empty(char *file) { - double t = 0.0, dt = 0.05; - while (t < 1.0) { - struct stat sb; - if (stat(file, &sb) != 0) { - return; - } - if (sb.st_size == 0) { - return; - } - t += dt; - usleep( (int) (dt * 1000 * 1000) ); - } -} - -static void client(char *client, int add) { - DIR *dir; - struct dirent *dp; - - if (!client) { - return; - } - if (!trackdir) { - fprintf(stderr, "no trackdir, cannot %s client: %s\n", - add ? "add" : "disconnect", client); - ff(); - return; - } - fprintf(stdout, "%s client: %s\n", add ? "adding " : "deleting", client); - - dir = opendir(trackdir); - if (!dir) { - fprintf(stderr, "could not opendir trackdir: %s\n", trackdir); - return; - } - while ( (dp = readdir(dir)) != NULL) { - char *name = dp->d_name; - if (!strcmp(name, ".") || !strcmp(name, "..")) { - continue; - } - if (strstr(name, "0x") != name) { - continue; - } - if (strstr(name, ".connect")) { - FILE *f; - char *tmp; - Window twin; - - if (scan_hexdec(name, &twin)) { - int f = find_win(twin); - if (appshare_debug) { - fprintf(stderr, "twin: 0x%lx name=%s f=%d\n", twin, name, f); - ff(); - } - if (f < 0) { - continue; - } - } - - tmp = (char *) calloc(100 + strlen(client), 1); - sprintf(tracktmp, "%s/%s", trackdir, name); - if (add) { - sprintf(tmp, "%s\n", client); - } else { - sprintf(tmp, "cmd=close:%s\n", client); - } - wait_until_empty(tracktmp); - f = fopen(tracktmp, "w"); - if (f) { - if (appshare_debug) { - fprintf(stderr, "%s client: %s + %s", - add ? "add" : "disconnect", tracktmp, tmp); - ff(); - } - fprintf(f, "%s", tmp); - fclose(f); - } - free(tmp); - } - } - closedir(dir); -} - -static void mapped(Window win) { - int f; - if (win == None) { - return; - } - f = find_win(win); - if (f < 0) { - if (win_attr(win)) { - if (get_parent(win) == root) { - /* XXX more cases? */ - add_win(win); - } - } - } -} - -static void unmapped(Window win) { - int f = find_win(win); - if (f < 0 || win == None) { - return; - } - stop(win); - state[f] = 0; -} - -static void destroy_win(Window win) { - stop(win); - delete_win(win); -} - -static Window parse_win(char *str) { - Window win = None; - if (!str) { - return None; - } - if (!strcmp(str, "pick") || !strcmp(str, "p")) { - static double last_pick = 0.0; - if (dnow() < start_time + 15) { - ; - } else if (dnow() < last_pick + 2) { - return None; - } else { - last_pick = dnow(); - } - if (!pick_windowid(&win)) { - fprintf(stderr, "parse_win: bad window pick.\n"); - win = None; - } - if (win == root) { - fprintf(stderr, "parse_win: ignoring pick of rootwin 0x%lx.\n", win); - win = None; - } - ff(); - } else if (!scan_hexdec(str, &win)) { - win = None; - } - return win; -} - -static void add_or_del_app(char *str, int add) { - Window win = parse_win(str); - - if (win != None) { - if (add) { - add_app(win); - } else { - del_app(win); - } - } else if (!strcmp(str, "all")) { - if (!add) { - int i; - for (i=0; i < AMAX; i++) { - if (apps[i] != None) { - del_app(apps[i]); - } - } - } - } -} - -static void add_or_del_win(char *str, int add) { - Window win = parse_win(str); - - if (win != None) { - int f = find_win(win); - if (add) { - if (f < 0 && win_attr(win)) { - add_win(win); - } - } else { - if (f >= 0) { - destroy_win(win); - } - } - } else if (!strcmp(str, "all")) { - if (!add) { - int i; - for (i=0; i < WMAX; i++) { - if (watch[i] != None) { - destroy_win(watch[i]); - } - } - } - } -} - -static void add_or_del_client(char *str, int add) { - int i; - - if (!str) { - return; - } - if (strcmp(control, "internal")) { - return; - } - if (add) { - int idx = find_client(str); - int free = find_client(NULL); - - if (idx >=0) { - fprintf(stderr, "already tracking client: %s in slot %d\n", str, idx); - ff(); - return; - } - if (free < 0) { - static int cnt = 0; - if (cnt++ < 10) { - fprintf(stderr, "ran out of client slots.\n"); - ff(); - } - return; - } - clients[free] = strdup(str); - client(str, 1); - } else { - if (str[0] == '#' || str[0] == '%') { - if (sscanf(str+1, "%d", &i) == 1) { - i--; - if (0 <= i && i < CMAX) { - if (clients[i] != NULL) { - client(clients[i], 0); - free(clients[i]); - clients[i] = NULL; - return; - } - } - } - } else if (!strcmp(str, "all")) { - for (i=0; i < CMAX; i++) { - if (clients[i] == NULL) { - continue; - } - client(clients[i], 0); - free(clients[i]); - clients[i] = NULL; - } - return; - } - - i = find_client(str); - if (i >= 0) { - free(clients[i]); - clients[i] = NULL; - client(str, 0); - } - } -} - -static void restart_x11vnc(void) { - int i, n = 0; - Window win, active[WMAX]; - for (i=0; i < WMAX; i++) { - win = watch[i]; - if (win == None) { - continue; - } - if (state[i]) { - active[n++] = win; - stop(win); - } - } - if (n) { - usleep(1500 * 1000); - } - for (i=0; i < n; i++) { - win = active[i]; - launch(win); - } -} - -static unsigned long cmask = 0x3fc00000; /* 00111111110000000000000000000000 */ - -static void init_cmask(void) { - /* dependent on the X server implementation; XmuClientWindow better? */ - /* xc/programs/Xserver/include/resource.h */ - int didit = 0, res_cnt = 29, client_bits = 8; - - if (getenv("X11VNC_APPSHARE_CLIENT_MASK")) { - unsigned long cr; - if (sscanf(getenv("X11VNC_APPSHARE_CLIENT_MASK"), "0x%lx", &cr) == 1) { - cmask = cr; - didit = 1; - } - } else if (getenv("X11VNC_APPSHARE_CLIENT_BITS")) { - int cr = atoi(getenv("X11VNC_APPSHARE_CLIENT_BITS")); - if (cr > 0) { - client_bits = cr; - } - } - if (!didit) { - cmask = (((1 << client_bits) - 1) << (res_cnt-client_bits)); - } - fprintf(stderr, "client_mask: 0x%08lx\n", cmask); -} - -static int same_app(Window win, Window app) { - if ( (win & cmask) == (app & cmask) ) { - return 1; - } else { - return 0; - } -} - -static int ours(Window win) { - int i; - for (i=0; i < AMAX; i++) { - if (apps[i] != None) { - if (same_app(win, apps[i])) { - return 1; - } - } - } - return 0; -} - -static void list_clients(void) { - int i, n = 0; - for (i=0; i < CMAX; i++) { - if (clients[i] == NULL) { - continue; - } - fprintf(stdout, "client[%02d] %s\n", ++n, clients[i]); - } - fprintf(stdout, "total clients: %d\n", n); - ff(); -} - -static void list_windows(void) { - int i, n = 0; - for (i=0; i < WMAX; i++) { - char *name; - Window win = watch[i]; - if (win == None) { - continue; - } - get_wm_name(win, &name); - fprintf(stdout, "window[%02d] 0x%08lx state: %d slot: %03d \"%s\"\n", - ++n, win, state[i], i, name); - free(name); - } - fprintf(stdout, "total windows: %d\n", n); - ff(); -} - -static void list_apps(void) { - int i, n = 0; - for (i=0; i < AMAX; i++) { - char *name; - Window win = apps[i]; - if (win == None) { - continue; - } - get_wm_name(win, &name); - fprintf(stdout, "app[%02d] 0x%08lx state: %d slot: %03d \"%s\"\n", - ++n, win, state[i], i, name); - free(name); - } - fprintf(stdout, "total apps: %d\n", n); - ff(); -} - -static int process_control(char *file, int check_clients) { - int i, nnew = 0, seen[CMAX]; - char line[1024], *newctl[CMAX]; - FILE *f; - - f = fopen(file, "r"); - if (!f) { - return 1; - } - if (check_clients) { - for (i=0; i < CMAX; i++) { - seen[i] = 0; - } - } - while (fgets(line, sizeof(line), f) != NULL) { - char *q = strchr(line, '\n'); - if (q) *q = '\0'; - - if (appshare_debug) { - fprintf(stderr, "check_control: %s\n", line); - ff(); - } - - q = lblanks(line); - if (q[0] == '#') { - continue; - } - if (!strcmp(q, "")) { - continue; - } - if (strstr(q, "cmd=") == q) { - char *cmd = q + strlen("cmd="); - if (!strcmp(cmd, "quit")) { - if (strcmp(control, file) && strstr(file, ".cmd")) { - FILE *f2 = fopen(file, "w"); - if (f2) fclose(f2); - } - appshare_cleanup(0); - } else if (!strcmp(cmd, "wait")) { - return 0; - } else if (strstr(cmd, "bcast:") == cmd) { - ; - } else if (strstr(cmd, "del_window:") == cmd) { - add_or_del_win(cmd + strlen("del_window:"), 0); - } else if (strstr(cmd, "add_window:") == cmd) { - add_or_del_win(cmd + strlen("add_window:"), 1); - } else if (strstr(cmd, "del:") == cmd) { - add_or_del_win(cmd + strlen("del:"), 0); - } else if (strstr(cmd, "add:") == cmd) { - add_or_del_win(cmd + strlen("add:"), 1); - } else if (strstr(cmd, "del_client:") == cmd) { - add_or_del_client(cmd + strlen("del_client:"), 0); - } else if (strstr(cmd, "add_client:") == cmd) { - add_or_del_client(cmd + strlen("add_client:"), 1); - } else if (strstr(cmd, "-") == cmd) { - add_or_del_client(cmd + strlen("-"), 0); - } else if (strstr(cmd, "+") == cmd) { - add_or_del_client(cmd + strlen("+"), 1); - } else if (strstr(cmd, "del_app:") == cmd) { - add_or_del_app(cmd + strlen("del_app:"), 0); - } else if (strstr(cmd, "add_app:") == cmd) { - add_or_del_app(cmd + strlen("add_app:"), 1); - } else if (strstr(cmd, "debug:") == cmd) { - appshare_debug = atoi(cmd + strlen("debug:")); - } else if (strstr(cmd, "showmenus:") == cmd) { - skip_menus = atoi(cmd + strlen("showmenus:")); - skip_menus = !(skip_menus); - } else if (strstr(cmd, "noexit:") == cmd) { - exit_no_app_win = atoi(cmd + strlen("noexit:")); - exit_no_app_win = !(exit_no_app_win); - } else if (strstr(cmd, "use_forever:") == cmd) { - use_forever = atoi(cmd + strlen("use_forever:")); - } else if (strstr(cmd, "tree_depth:") == cmd) { - tree_depth = atoi(cmd + strlen("tree_depth:")); - } else if (strstr(cmd, "x11vnc_args:") == cmd) { - x11vnc_args = strdup(cmd + strlen("x11vnc_args:")); - } else if (strstr(cmd, "env:") == cmd) { - putenv(cmd + strlen("env:")); - } else if (strstr(cmd, "noop") == cmd) { - ; - } else if (!strcmp(cmd, "restart")) { - restart_x11vnc(); - } else if (!strcmp(cmd, "list_clients") || !strcmp(cmd, "lc")) { - list_clients(); - } else if (!strcmp(cmd, "list_windows") || !strcmp(cmd, "lw")) { - list_windows(); - } else if (!strcmp(cmd, "list_apps") || !strcmp(cmd, "la")) { - list_apps(); - } else if (!strcmp(cmd, "list_all") || !strcmp(cmd, "ls")) { - list_windows(); - fprintf(stderr, "\n"); - list_apps(); - fprintf(stderr, "\n"); - list_clients(); - } else if (!strcmp(cmd, "print_logs") || !strcmp(cmd, "pl")) { - print_logs(); - } else if (!strcmp(cmd, "?") || !strcmp(cmd, "h") || !strcmp(cmd, "help")) { - fprintf(stderr, "available commands:\n"); - fprintf(stderr, "\n"); - fprintf(stderr, " quit restart noop x11vnc help ? ! !!\n"); - fprintf(stderr, "\n"); - fprintf(stderr, " add_window:win (add:win, add:pick)\n"); - fprintf(stderr, " del_window:win (del:win, del:pick, del:all)\n"); - fprintf(stderr, " add_app:win (add_app:pick)\n"); - fprintf(stderr, " del_app:win (del_app:pick, del_app:all)\n"); - fprintf(stderr, " add_client:host (+host)\n"); - fprintf(stderr, " del_client:host (-host, -all)\n"); - fprintf(stderr, "\n"); - fprintf(stderr, " list_windows (lw)\n"); - fprintf(stderr, " list_apps (la)\n"); - fprintf(stderr, " list_clients (lc)\n"); - fprintf(stderr, " list_all (ls)\n"); - fprintf(stderr, " print_logs (pl)\n"); - fprintf(stderr, "\n"); - fprintf(stderr, " debug:n showmenus:n noexit:n\n"); - } else { - fprintf(stderr, "unrecognized %s\n", q); - } - continue; - } - if (check_clients) { - int idx = find_client(q); - if (idx >= 0) { - seen[idx] = 1; - } else { - newctl[nnew++] = strdup(q); - } - } - } - fclose(f); - - if (check_clients) { - for (i=0; i < CMAX; i++) { - if (clients[i] == NULL) { - continue; - } - if (!seen[i]) { - client(clients[i], 0); - free(clients[i]); - clients[i] = NULL; - } - } - for (i=0; i < nnew; i++) { - int free = find_client(NULL); - if (free < 0) { - static int cnt = 0; - if (cnt++ < 10) { - fprintf(stderr, "ran out of client slots.\n"); - ff(); - break; - } - continue; - } - clients[free] = newctl[i]; - client(newctl[i], 1); - } - } - return 1; -} - -static int check_control(void) { - static int last_size = -1; - static time_t last_mtime = 0; - struct stat sb; - char *control_cmd; - - if (!control) { - return 1; - } - - if (!strcmp(control, "internal")) { - return 1; - } - - control_cmd = (char *)malloc(strlen(control) + strlen(".cmd") + 1); - sprintf(control_cmd, "%s.cmd", control); - if (stat(control_cmd, &sb) == 0) { - FILE *f; - if (sb.st_size > 0) { - process_control(control_cmd, 0); - } - f = fopen(control_cmd, "w"); - if (f) { - fclose(f); - } - } - free(control_cmd); - - if (stat(control, &sb) != 0) { - return 1; - } - if (last_size == (int) sb.st_size && last_mtime == sb.st_mtime) { - return 1; - } - last_size = (int) sb.st_size; - last_mtime = sb.st_mtime; - - return process_control(control, 1); -} - -static void update(void) { - int i, app_ok = 0; - if (last_event_type != PropertyNotify) { - if (appshare_debug) fprintf(stderr, "\nupdate ...\n"); - } else if (appshare_debug > 1) { - fprintf(stderr, "update ... propertynotify\n"); - } - if (!check_control()) { - return; - } - for (i=0; i < WMAX; i++) { - Window win = watch[i]; - if (win == None) { - continue; - } - if (!win_attr(win)) { - destroy_win(win); - continue; - } - if (find_app(win) >= 0) { - app_ok++; - } - if (state[i] == 0) { - if (attr.map_state == IsViewable) { - if (skip_menus) { - Window inside = check_inside(win); - if (inside != None) { - if (appshare_debug) {fprintf(stderr, "skip_menus: window 0x%lx is inside of 0x%lx, not tracking it.\n", win, inside); ff();} - delete_win(win); - continue; - } - } - launch(win); - state[i] = 1; - } - } else if (state[i] == 1) { - if (attr.map_state != IsViewable) { - stop(win); - state[i] = 0; - } - } - } - if (exit_no_app_win && !app_ok) { - for (i=0; i < AMAX; i++) { - if (apps[i] != None) { - fprintf(stdout, "main application window is gone: 0x%lx\n", apps[i]); - } - } - ff(); - appshare_cleanup(0); - } - if (last_event_type != PropertyNotify) { - if (appshare_debug) {fprintf(stderr, "update done.\n"); ff();} - } -} - -static void exiter(char *msg, int rc) { - fprintf(stderr, "%s", msg); - ff(); - kill_helper_pid(); - exit(rc); -} - -static void set_trackdir(void) { - char tmp[256]; - struct stat sb; - if (!strcmp(trackdir, "none")) { - trackdir = NULL; - return; - } - if (!strcmp(trackdir, "unset")) { - int fd; - sprintf(tmp, "%s.XXXXXX", trackpre); - fd = mkstemp(tmp); - if (fd < 0) { - strcat(tmp, ": failed to create file.\n"); - exiter(tmp, 1); - } - /* XXX race */ - close(fd); - unlink(tmp); - if (mkdir(tmp, 0700) != 0) { - strcat(tmp, ": failed to create dir.\n"); - exiter(tmp, 1); - } - trackdir = strdup(tmp); - } - if (stat(trackdir, &sb) != 0) { - if (mkdir(trackdir, 0700) != 0) { - exiter("could not make trackdir.\n", 1); - } - } else if (! S_ISDIR(sb.st_mode)) { - exiter("trackdir not a directory.\n", 1); - } - tracktmp = (char *) calloc(1000 + strlen(trackdir), 1); -} - -static void process_string(char *str) { - FILE *f; - char *file; - if (trackdir) { - sprintf(tracktmp, "%s/0xprop.cmd", trackdir); - file = strdup(tracktmp); - } else { - char tmp[] = "/tmp/x11vnc-appshare.cmd.XXXXXX"; - int fd = mkstemp(tmp); - if (fd < 0) { - return; - } - file = strdup(tmp); - close(fd); - } - f = fopen(file, "w"); - if (f) { - fprintf(f, "%s", str); - fclose(f); - process_control(file, 0); - } - unlink(file); - free(file); -} - -static void handle_shell(void) { - struct timeval tv; - static char lastline[1000]; - static int first = 1; - fd_set rfds; - int fd0 = fileno(stdin); - - if (first) { - memset(lastline, 0, sizeof(lastline)); - first = 0; - } - - FD_ZERO(&rfds); - FD_SET(fd0, &rfds); - tv.tv_sec = 0; - tv.tv_usec = 0; - select(fd0+1, &rfds, NULL, NULL, &tv); - if (FD_ISSET(fd0, &rfds)) { - char line[1000], line2[1010]; - if (fgets(line, sizeof(line), stdin) != NULL) { - char *str = lblanks(line); - char *q = strrchr(str, '\n'); - if (q) *q = '\0'; - if (strcmp(str, "")) { - if (!strcmp(str, "!!")) { - sprintf(line, "%s", lastline); - fprintf(stderr, "%s\n", line); - str = line; - } - if (strstr(str, "!") == str) { - system(str+1); - } else if (!strcmp(str, "x11vnc") || !strcmp(str, "ps")) { - char *cmd = "ps -elf | egrep 'PID|x11vnc' | grep -v egrep"; - fprintf(stderr, "%s\n", cmd); - system(cmd); - } else { - sprintf(line2, "cmd=%s", str); - process_string(line2); - } - sprintf(lastline, "%s", str); - } - } - fprintf(stderr, "\n%s", prompt); ff(); - } -} - -static void handle_prop_cmd(void) { - char *value, *str, *done = "DONE"; - - if (cmd_atom == None) { - return; - } - - value = get_xprop(cmd_atom_str, root); - if (value == NULL) { - return; - } - - str = lblanks(value); - if (!strcmp(str, done)) { - free(value); - return; - } - if (strstr(str, "cmd=quit") == str || strstr(str, "\ncmd=quit")) { - set_xprop(cmd_atom_str, root, done); - appshare_cleanup(0); - } - - process_string(str); - - free(value); - set_xprop(cmd_atom_str, root, done); -} - -#define PREFIX if(appshare_debug) fprintf(stderr, " %8.2f 0x%08lx : ", dnow() - start, ev.xany.window); - -static void monitor(void) { -#if !NO_X11 - XEvent ev; - double start = dnow(); - int got_prop_cmd = 0; - - if (shell) { - update(); - fprintf(stderr, "\n\n"); - process_string("cmd=help"); - fprintf(stderr, "\n%s", prompt); ff(); - } - - while (1) { - int t; - - if (XEventsQueued(dpy, QueuedAlready) == 0) { - update(); - if (got_prop_cmd) { - handle_prop_cmd(); - } - got_prop_cmd = 0; - if (shell) { - handle_shell(); - } - } - - XNextEvent(dpy, &ev); - - last_event_type = ev.type; - - switch (ev.type) { - case Expose: - PREFIX - if(appshare_debug) fprintf(stderr, "Expose %04dx%04d+%04d+%04d\n", ev.xexpose.width, ev.xexpose.height, ev.xexpose.x, ev.xexpose.y); - break; - case ConfigureNotify: -#if 0 - PREFIX - if(appshare_debug) fprintf(stderr, "ConfigureNotify %04dx%04d+%04d+%04d above: 0x%lx\n", ev.xconfigure.width, ev.xconfigure.height, ev.xconfigure.x, ev.xconfigure.y, ev.xconfigure.above); -#endif - break; - case VisibilityNotify: - PREFIX - if (appshare_debug) { - fprintf(stderr, "VisibilityNotify: "); - t = ev.xvisibility.state; - if (t == VisibilityFullyObscured) fprintf(stderr, "VisibilityFullyObscured\n"); - if (t == VisibilityPartiallyObscured) fprintf(stderr, "VisibilityPartiallyObscured\n"); - if (t == VisibilityUnobscured) fprintf(stderr, "VisibilityUnobscured\n"); - } - break; - case MapNotify: - PREFIX - if(appshare_debug) fprintf(stderr, "MapNotify win: 0x%lx\n", ev.xmap.window); - if (ours(ev.xmap.window)) { - mapped(ev.xmap.window); - } - break; - case UnmapNotify: - PREFIX - if(appshare_debug) fprintf(stderr, "UnmapNotify win: 0x%lx\n", ev.xmap.window); - if (ours(ev.xmap.window)) { - unmapped(ev.xmap.window); - } - break; - case MapRequest: - PREFIX - if(appshare_debug) fprintf(stderr, "MapRequest\n"); - break; - case CreateNotify: - PREFIX - if(appshare_debug) fprintf(stderr, "CreateNotify parent: 0x%lx win: 0x%lx\n", ev.xcreatewindow.parent, ev.xcreatewindow.window); - if (ev.xcreatewindow.parent == root && ours(ev.xcreatewindow.window)) { - if (find_win(ev.xcreatewindow.window) >= 0) { - destroy_win(ev.xcreatewindow.window); - } - add_win(ev.xcreatewindow.window); - } - break; - case DestroyNotify: - PREFIX - if(appshare_debug) fprintf(stderr, "DestroyNotify win: 0x%lx\n", ev.xdestroywindow.window); - if (ours(ev.xdestroywindow.window)) { - destroy_win(ev.xdestroywindow.window); - } - break; - case ConfigureRequest: - PREFIX - if(appshare_debug) fprintf(stderr, "ConfigureRequest\n"); - break; - case CirculateRequest: -#if 0 - PREFIX - if(appshare_debug) fprintf(stderr, "CirculateRequest parent: 0x%lx win: 0x%lx\n", ev.xcirculaterequest.parent, ev.xcirculaterequest.window); -#endif - break; - case CirculateNotify: -#if 0 - PREFIX - if(appshare_debug) fprintf(stderr, "CirculateNotify\n"); -#endif - break; - case PropertyNotify: -#if 0 - PREFIX - if(appshare_debug) fprintf(stderr, "PropertyNotify\n"); -#endif - if (cmd_atom != None && ev.xproperty.atom == cmd_atom) { - got_prop_cmd++; - } - break; - case ReparentNotify: - PREFIX - if(appshare_debug) fprintf(stderr, "ReparentNotify parent: 0x%lx win: 0x%lx\n", ev.xreparent.parent, ev.xreparent.window); - if (ours(ev.xreparent.window)) { - if (ours(ev.xreparent.parent)) { - destroy_win(ev.xreparent.window); - } else if (ev.xreparent.parent == root) { - /* ??? */ - } - } - break; - default: - PREFIX - if(appshare_debug) fprintf(stderr, "Unknown: %d\n", ev.type); - break; - } - } -#endif -} - -int appshare_main(int argc, char *argv[]) { - int i; - char *app_str = NULL; - char *dpy_str = NULL; - long xselectinput = 0; -#if NO_X11 - exiter("not compiled with X11\n", 1); -#else - for (i=0; i < WMAX; i++) { - watch[i] = None; - state[i] = 0; - } - for (i=0; i < AMAX; i++) { - apps[i] = None; - } - for (i=0; i < CMAX; i++) { - clients[i] = NULL; - } - - x11vnc = strdup(argv[0]); - - for (i=1; i < argc; i++) { - int end = (i == argc-1) ? 1 : 0; - char *s = argv[i]; - if (strstr(s, "--") == s) { - s++; - } - - if (!strcmp(s, "-h") || !strcmp(s, "-help")) { - fprintf(stdout, "%s", usage); - exit(0); - } else if (!strcmp(s, "-id")) { - id_opt = "-id"; - if (end) exiter("no -id value supplied\n", 1); - app_str = strdup(argv[++i]); - } else if (!strcmp(s, "-sid")) { - id_opt = "-sid"; - if (end) exiter("no -sid value supplied\n", 1); - app_str = strdup(argv[++i]); - } else if (!strcmp(s, "-connect") || !strcmp(s, "-connect_or_exit") || !strcmp(s, "-coe")) { - if (end) exiter("no -connect value supplied\n", 1); - connect_to = strdup(argv[++i]); - } else if (!strcmp(s, "-control")) { - if (end) exiter("no -control value supplied\n", 1); - control = strdup(argv[++i]); - if (!strcmp(control, "shell")) { - free(control); - control = strdup("internal"); - shell = 1; - } - } else if (!strcmp(s, "-trackdir")) { - if (end) exiter("no -trackdir value supplied\n", 1); - trackdir = strdup(argv[++i]); - } else if (!strcmp(s, "-display")) { - if (end) exiter("no -display value supplied\n", 1); - dpy_str = strdup(argv[++i]); - set_env("DISPLAY", dpy_str); - } else if (!strcmp(s, "-delay")) { - if (end) exiter("no -delay value supplied\n", 1); - helper_delay = atof(argv[++i]); - } else if (!strcmp(s, "-args")) { - if (end) exiter("no -args value supplied\n", 1); - x11vnc_args = strdup(argv[++i]); - } else if (!strcmp(s, "-env")) { - if (end) exiter("no -env value supplied\n", 1); - putenv(argv[++i]); - } else if (!strcmp(s, "-debug")) { - appshare_debug++; - } else if (!strcmp(s, "-showmenus")) { - skip_menus = 0; - } else if (!strcmp(s, "-noexit")) { - exit_no_app_win = 0; - } else if (!strcmp(s, "-shell")) { - shell = 1; - } else if (!strcmp(s, "-nocmds") || !strcmp(s, "-safer")) { - fprintf(stderr, "ignoring %s in -appshare mode.\n", s); - } else if (!strcmp(s, "-appshare")) { - ; - } else { - fprintf(stderr, "unrecognized 'x11vnc -appshare' option: %s\n", s); - exiter("", 1); - } - } - - if (getenv("X11VNC_APPSHARE_DEBUG")) { - appshare_debug = atoi(getenv("X11VNC_APPSHARE_DEBUG")); - } - - /* let user override name for multiple instances: */ - if (getenv("X11VNC_APPSHARE_COMMAND_PROPNAME")) { - cmd_atom_str = strdup(getenv("X11VNC_APPSHARE_COMMAND_PROPNAME")); - } - if (getenv("X11VNC_APPSHARE_TICKER_PROPNAME")) { - ticker_atom_str = strdup(getenv("X11VNC_APPSHARE_TICKER_PROPNAME")); - } - - if (shell) { - if (!control || strcmp(control, "internal")) { - exiter("mode -shell requires '-control internal'\n", 1); - } - } - - if (connect_to == NULL && control != NULL) { - struct stat sb; - if (stat(control, &sb) == 0) { - int len = 100 + sb.st_size; - FILE *f = fopen(control, "r"); - - if (f) { - char *line = (char *) malloc(len); - connect_to = (char *) calloc(2 * len, 1); - while (fgets(line, len, f) != NULL) { - char *q = strchr(line, '\n'); - if (q) *q = '\0'; - q = lblanks(line); - if (q[0] == '#') { - continue; - } - if (connect_to[0] != '\0') { - strcat(connect_to, ","); - } - strcat(connect_to, q); - } - fclose(f); - } - fprintf(stderr, "set -connect to: %s\n", connect_to); - } - } - if (0 && connect_to == NULL && control == NULL) { - exiter("no -connect host or -control file specified.\n", 1); - } - - if (control) { - pid_t pid; - parent_pid = getpid(); - pid = fork(); - if (pid == (pid_t) -1) { - ; - } else if (pid == 0) { - be_helper_pid(dpy_str); - exit(0); - } else { - helper_pid = pid; - } - } - - dpy = XOpenDisplay(dpy_str); - if (!dpy) { - exiter("cannot open display\n", 1); - } - - root = DefaultRootWindow(dpy); - - xselectinput = SubstructureNotifyMask; - if (helper_pid > 0) { - ticker_atom = XInternAtom(dpy, ticker_atom_str, False); - xselectinput |= PropertyChangeMask; - } - XSelectInput(dpy, root, xselectinput); - - cmd_atom = XInternAtom(dpy, cmd_atom_str, False); - - init_cmask(); - - sprintf(unique_tag, "X11VNC_APPSHARE_TAG=%d-tag", getpid()); - - start_time = dnow(); - - if (app_str == NULL) { - exiter("no -id/-sid window specified.\n", 1); - } else { - char *p, *str = strdup(app_str); - char *alist[AMAX]; - int i, n = 0; - - p = strtok(str, ","); - while (p) { - if (n >= AMAX) { - fprintf(stderr, "ran out of app slots: %s\n", app_str); - exiter("", 1); - } - alist[n++] = strdup(p); - p = strtok(NULL, ","); - } - free(str); - - for (i=0; i < n; i++) { - Window app = None; - p = alist[i]; - app = parse_win(p); - free(p); - - if (app != None) { - if (!ours(app)) { - add_app(app); - } - } - } - } - - set_trackdir(); - - signal(SIGINT, appshare_cleanup); - signal(SIGTERM, appshare_cleanup); - - rfbLogEnable(0); - - if (connect_to) { - char *p, *str = strdup(connect_to); - int n = 0; - p = strtok(str, ","); - while (p) { - clients[n++] = strdup(p); - p = strtok(NULL, ","); - } - free(str); - } else { - connect_to = strdup(""); - } - - for (i=0; i < AMAX; i++) { - if (apps[i] == None) { - continue; - } - fprintf(stdout, "Using app win: 0x%08lx root: 0x%08lx\n", apps[i], root); - } - fprintf(stdout, "\n"); - - monitor(); - - appshare_cleanup(0); - -#endif - return 0; -} - |
