/* -- screen.c -- */ #include "x11vnc.h" #include "xevents.h" #include "xwrappers.h" #include "xinerama.h" #include "xdamage.h" #include "win_utils.h" #include "cleanup.h" #include "userinput.h" #include "scan.h" #include "user.h" #include "rates.h" #include "pointer.h" #include "keyboard.h" #include "cursor.h" #include "connections.h" #include "remote.h" #include "unixpw.h" #include "sslcmds.h" #include "sslhelper.h" void set_colormap(int reset); void set_nofb_params(int restore); void set_raw_fb_params(int restore); void do_new_fb(int reset_mem); void free_old_fb(char *old_main, char *old_rfb, char *old_8to24); void check_padded_fb(void); void install_padded_fb(char *geom); XImage *initialize_xdisplay_fb(void); void parse_scale_string(char *str, double *factor, int *scaling, int *blend, int *nomult4, int *pad, int *interpolate, int *numer, int *denom); int scale_round(int len, double fac); void initialize_screen(int *argc, char **argv, XImage *fb); void set_vnc_desktop_name(void); static void debug_colormap(XImage *fb); static void set_visual(char *str); static void nofb_hook(rfbClientPtr cl); static void remove_fake_fb(void); static void install_fake_fb(int w, int h, int bpp); static void initialize_snap_fb(void); static XImage *initialize_raw_fb(void); static void initialize_clipshift(void); static int wait_until_mapped(Window win); static void announce(int lport, int ssl, char *iface); static void setup_scaling(int *width_in, int *height_in); /* * X11 and rfb display/screen related routines */ /* * Some handling of 8bpp PseudoColor colormaps. Called for initializing * the clients and dynamically if -flashcmap is specified. */ #define NCOLOR 256 void set_colormap(int reset) { static int first = 1; static XColor color[NCOLOR], prev[NCOLOR]; Colormap cmap; Visual *vis; int i, ncells, diffs = 0; if (reset) { first = 1; if (screen->colourMap.data.shorts) { free(screen->colourMap.data.shorts); screen->colourMap.data.shorts = NULL; } } if (first) { screen->colourMap.count = NCOLOR; screen->serverFormat.trueColour = FALSE; screen->colourMap.is16 = TRUE; screen->colourMap.data.shorts = (unsigned short *) malloc(3*sizeof(unsigned short) * NCOLOR); } for (i=0; i < NCOLOR; i++) { prev[i].red = color[i].red; prev[i].green = color[i].green; prev[i].blue = color[i].blue; } X_LOCK; cmap = DefaultColormap(dpy, scr); ncells = CellsOfScreen(ScreenOfDisplay(dpy, scr)); vis = default_visual; if (subwin) { XWindowAttributes attr; if (XGetWindowAttributes(dpy, window, &attr)) { cmap = attr.colormap; vis = attr.visual; ncells = vis->map_entries; } } if (ncells != NCOLOR) { if (first && ! quiet) { rfbLog("set_colormap: number of cells is %d " "instead of %d.\n", ncells, NCOLOR); } if (! shift_cmap) { screen->colourMap.count = ncells; } } if (flash_cmap && ! first) { XWindowAttributes attr; Window c; int tries = 0; c = window; while (c && tries++ < 16) { c = query_pointer(c); if (valid_window(c, &attr, 0)) { if (attr.colormap && attr.map_installed) { cmap = attr.colormap; vis = attr.visual; ncells = vis->map_entries; break; } } else { break; } } } if (ncells > NCOLOR && ! quiet) { rfbLog("set_colormap: big problem: ncells=%d > %d\n", ncells, NCOLOR); } if (vis->class == TrueColor || vis->class == DirectColor) { /* * Kludge to make 8bpp TrueColor & DirectColor be like * the StaticColor map. The ncells = 8 is "8 per subfield" * mentioned in xdpyinfo. Looks OK... perhaps fortuitously. */ if (ncells == 8 && ! shift_cmap) { ncells = NCOLOR; } } for (i=0; i < ncells; i++) { color[i].pixel = i; color[i].pad = 0; } XQueryColors(dpy, cmap, color, ncells); X_UNLOCK; for(i = ncells - 1; i >= 0; i--) { int k = i + shift_cmap; screen->colourMap.data.shorts[i*3+0] = color[i].red; screen->colourMap.data.shorts[i*3+1] = color[i].green; screen->colourMap.data.shorts[i*3+2] = color[i].blue; if (prev[i].red != color[i].red || prev[i].green != color[i].green || prev[i].blue != color[i].blue ) { diffs++; } if (shift_cmap && k >= 0 && k < NCOLOR) { /* kludge to copy the colors to higher pixel values */ screen->colourMap.data.shorts[k*3+0] = color[i].red; screen->colourMap.data.shorts[k*3+1] = color[i].green; screen->colourMap.data.shorts[k*3+2] = color[i].blue; } } if (diffs && ! first) { if (! all_clients_initialized()) { rfbLog("set_colormap: warning: sending cmap " "with uninitialized clients.\n"); } if (shift_cmap) { rfbSetClientColourMaps(screen, 0, NCOLOR); } else { rfbSetClientColourMaps(screen, 0, ncells); } } first = 0; } static void debug_colormap(XImage *fb) { static int debug_cmap = -1; int i, k, histo[NCOLOR]; if (debug_cmap < 0) { if (getenv("DEBUG_CMAP") != NULL) { debug_cmap = 1; } else { debug_cmap = 0; } } if (! debug_cmap) { return; } if (! fb) { return; } if (fb->bits_per_pixel > 8) { return; } for (i=0; i < NCOLOR; i++) { histo[i] = 0; } for (k = 0; k < fb->width * fb->height; k++) { unsigned char n; char c = *(fb->data + k); n = (unsigned char) c; histo[n]++; } fprintf(stderr, "\nColormap histogram for current screen contents:\n"); for (i=0; i < NCOLOR; i++) { unsigned short r = screen->colourMap.data.shorts[i*3+0]; unsigned short g = screen->colourMap.data.shorts[i*3+1]; unsigned short b = screen->colourMap.data.shorts[i*3+2]; fprintf(stderr, " %03d: %7d %04x/%04x/%04x", i, histo[i], r, g, b); if ((i+1) % 2 == 0) { fprintf(stderr, "\n"); } } fprintf(stderr, "\n"); } /* * Experimental mode to force the visual of the window instead of querying * it. Used for testing, overriding some rare cases (win2vnc), and for * -overlay . Input string can be a decimal or 0x hex or something like * TrueColor or TrueColor:24 to force a depth as well. * * visual_id and possibly visual_depth are set. */ static void set_visual(char *str) { int vis, vdepth, defdepth = DefaultDepth(dpy, scr); XVisualInfo vinfo; char *p, *vstring = strdup(str); visual_id = (VisualID) 0; visual_depth = 0; if (!strcmp(vstring, "ignore") || !strcmp(vstring, "default") || !strcmp(vstring, "")) { free(vstring); return; } /* set visual depth */ if ((p = strchr(vstring, ':')) != NULL) { visual_depth = atoi(p+1); *p = '\0'; vdepth = visual_depth; } else { vdepth = defdepth; } if (! quiet) { fprintf(stderr, "\nVisual Info:\n"); fprintf(stderr, " set_visual(\"%s\")\n", str); fprintf(stderr, " visual_depth: %d\n", vdepth); } /* set visual id number */ if (strcmp(vstring, "StaticGray") == 0) { vis = StaticGray; } else if (strcmp(vstring, "GrayScale") == 0) { vis = GrayScale; } else if (strcmp(vstring, "StaticColor") == 0) { vis = StaticColor; } else if (strcmp(vstring, "PseudoColor") == 0) { vis = PseudoColor; } else if (strcmp(vstring, "TrueColor") == 0) { vis = TrueColor; } else if (strcmp(vstring, "DirectColor") == 0) { vis = DirectColor; } else { unsigned int v_in; if (sscanf(vstring, "0x%x", &v_in) != 1) { if (sscanf(vstring, "%u", &v_in) == 1) { visual_id = (VisualID) v_in; return; } rfbLogEnable(1); rfbLog("invalid -visual arg: %s\n", vstring); X_UNLOCK; clean_up_exit(1); } visual_id = (VisualID) v_in; free(vstring); return; } if (! quiet) fprintf(stderr, " visual: %d\n", vis); if (XMatchVisualInfo(dpy, scr, visual_depth, vis, &vinfo)) { ; } else if (XMatchVisualInfo(dpy, scr, defdepth, vis, &vinfo)) { ; } else { rfbLogEnable(1); rfbLog("could not find visual: %s\n", vstring); X_UNLOCK; clean_up_exit(1); } free(vstring); /* set numerical visual id. */ visual_id = vinfo.visualid; } void set_nofb_params(int restore) { static int first = 1; static int save[100]; int i = 0; if (first) { first = 0; save[i++] = use_xfixes; save[i++] = use_xdamage; save[i++] = use_xrecord; save[i++] = wireframe; save[i++] = use_solid_bg; save[i++] = overlay; save[i++] = overlay_cursor; save[i++] = using_shm; save[i++] = single_copytile; save[i++] = take_naps; save[i++] = measure_speeds; save[i++] = grab_buster; save[i++] = show_cursor; save[i++] = cursor_shape_updates; save[i++] = cursor_pos_updates; } if (restore) { i = 0; use_xfixes = save[i++]; use_xdamage = save[i++]; use_xrecord = save[i++]; wireframe = save[i++]; use_solid_bg = save[i++]; overlay = save[i++]; overlay_cursor = save[i++]; using_shm = save[i++]; single_copytile = save[i++]; take_naps = save[i++]; measure_speeds = save[i++]; grab_buster = save[i++]; show_cursor = save[i++]; cursor_shape_updates = save[i++]; cursor_pos_updates = save[i++]; if (cursor_shape_updates) { restore_cursor_shape_updates(screen); } initialize_cursors_mode(); return; } use_xfixes = 0; use_xdamage = 0; use_xrecord = 0; wireframe = 0; use_solid_bg = 0; overlay = 0; overlay_cursor = 0; using_shm = 0; single_copytile = 1; take_naps = 0; measure_speeds = 0; /* got_grab_buster? */ grab_buster = 0; show_cursor = 0; show_multiple_cursors = 0; cursor_shape_updates = 0; if (! got_cursorpos) { cursor_pos_updates = 0; } if (! quiet) { rfbLog("disabling: xfixes, xdamage, solid, overlay, shm,\n"); rfbLog(" wireframe, scrollcopyrect,\n"); rfbLog(" noonetile, nap, cursor, %scursorshape\n", got_cursorpos ? "" : "cursorpos, " ); rfbLog(" in -nofb mode.\n"); } } static char *raw_fb_orig_dpy = NULL; void set_raw_fb_params(int restore) { static int first = 1; static int vo0, us0, sm0, ws0, wp0, wc0, wb0, na0, tn0; static int xr0, sb0; static char *mc0; /* * set turn off a bunch of parameters not compatible with * -rawfb mode: 1) ignoring the X server 2) ignoring user input. */ if (first) { /* at least save the initial settings... */ vo0 = view_only; ws0 = watch_selection; wp0 = watch_primary; wc0 = watch_clipboard; wb0 = watch_bell; na0 = no_autorepeat; sb0 = use_solid_bg; us0 = use_snapfb; sm0 = using_shm; tn0 = take_naps; xr0 = xrandr; mc0 = multiple_cursors_mode; first = 0; } if (restore) { view_only = vo0; watch_selection = ws0; watch_primary = wp0; watch_clipboard = wc0; watch_bell = wb0; no_autorepeat = na0; use_solid_bg = sb0; use_snapfb = us0; using_shm = sm0; take_naps = tn0; xrandr = xr0; multiple_cursors_mode = mc0; if (! dpy && raw_fb_orig_dpy) { dpy = XOpenDisplay(raw_fb_orig_dpy); if (dpy) { if (! quiet) rfbLog("reopened DISPLAY: %s\n", raw_fb_orig_dpy); } else { if (! quiet) rfbLog("WARNING: failed to reopen " "DISPLAY: %s\n", raw_fb_orig_dpy); } } return; } if (! quiet) { rfbLog("set_raw_fb_params: modifying settings for " "-rawfb mode.\n"); } if (got_noviewonly) { /* * The user input parameters are not unset under * -noviewonly... this usage should be very rare * (i.e. rawfb but also send user input to the X * display, most likely using /dev/fb0 for some reason...) */ if (! quiet) { rfbLog("rawfb: -noviewonly mode: still sending mouse and\n"); rfbLog("rawfb: keyboard input to the X DISPLAY!!\n"); } } else { /* Normal case: */ if (! view_only) { if (! quiet) rfbLog("rawfb: setting view_only\n"); view_only = 1; } if (watch_selection) { if (! quiet) rfbLog("rawfb: turning off " "watch_selection\n"); watch_selection = 0; } if (watch_primary) { if (! quiet) rfbLog("rawfb: turning off " "watch_primary\n"); watch_primary = 0; } if (watch_clipboard) { if (! quiet) rfbLog("rawfb: turning off " "watch_clipboard\n"); watch_clipboard = 0; } if (watch_bell) { if (! quiet) rfbLog("rawfb: turning off watch_bell\n"); watch_bell = 0; } if (no_autorepeat) { if (! quiet) rfbLog("rawfb: turning off " "no_autorepeat\n"); no_autorepeat = 0; } if (use_solid_bg) { if (! quiet) rfbLog("rawfb: turning off " "use_solid_bg\n"); use_solid_bg = 0; } multiple_cursors_mode = strdup("arrow"); } if (use_snapfb) { if (! quiet) rfbLog("rawfb: turning off use_snapfb\n"); use_snapfb = 0; } if (using_shm) { if (! quiet) rfbLog("rawfb: turning off using_shm\n"); using_shm = 0; } if (take_naps) { if (! quiet) rfbLog("rawfb: turning off take_naps\n"); take_naps = 0; } if (xrandr) { if (! quiet) rfbLog("rawfb: turning off xrandr\n"); xrandr = 0; } } /* * Presumably under -nofb the clients will never request the framebuffer. * However, we have gotten such a request... so let's just give them * the current view on the display. n.b. x2vnc and perhaps win2vnc * requests a 1x1 pixel for some workaround so sadly this evidently * nearly always happens. */ static void nofb_hook(rfbClientPtr cl) { XImage *fb; rfbLog("framebuffer requested in -nofb mode by client %s\n", cl->host); /* ignore xrandr */ fb = XGetImage_wr(dpy, window, 0, 0, dpy_x, dpy_y, AllPlanes, ZPixmap); main_fb = fb->data; rfb_fb = main_fb; screen->frameBuffer = rfb_fb; screen->displayHook = NULL; } void free_old_fb(char *old_main, char *old_rfb, char *old_8to24) { if (old_main) { free(old_main); } if (old_rfb && old_rfb != old_main) { free(old_rfb); } if (old_8to24 && old_8to24 != old_main && old_8to24 != old_rfb) { free(old_8to24); } } void do_new_fb(int reset_mem) { XImage *fb; char *old_main = main_fb; char *old_rfb = rfb_fb; char *old_8to24 = cmap8to24_fb; /* for threaded we really should lock libvncserver out. */ if (use_threads) { rfbLog("warning: changing framebuffers while threaded may\n"); rfbLog(" not work, do not use -threads if problems arise.\n"); } if (reset_mem == 1) { /* reset_mem == 2 is a hack for changing users... */ clean_shm(0); free_tiles(); } fb = initialize_xdisplay_fb(); initialize_screen(NULL, NULL, fb); if (reset_mem) { initialize_tiles(); initialize_blackouts_and_xinerama(); initialize_polling_images(); } free_old_fb(old_main, old_rfb, old_8to24); fb0 = fb; } static void remove_fake_fb(void) { if (! screen) { return; } rfbLog("removing fake fb: 0x%x\n", fake_fb); do_new_fb(1); /* * fake_fb is freed in do_new_fb(), but we set to NULL here to * indicate it is gone. */ fake_fb = NULL; } static void install_fake_fb(int w, int h, int bpp) { int bpc; if (! screen) { return; } if (fake_fb) { free(fake_fb); } fake_fb = (char *) calloc(w*h*bpp/8, 1); if (! fake_fb) { rfbLog("could not create fake fb: %dx%d %d\n", w, h, bpp); return; } bpc = guess_bits_per_color(bpp); rfbLog("installing fake fb: %dx%d %d\n", w, h, bpp); rfbLog("rfbNewFramebuffer(0x%x, 0x%x, %d, %d, %d, %d, %d)\n", screen, fake_fb, w, h, bpc, 1, bpp/8); rfbNewFramebuffer(screen, fake_fb, w, h, bpc, 1, bpp/8); } void check_padded_fb(void) { if (! fake_fb) { return; } if (unixpw_in_progress) return; if (time(0) > pad_geometry_time+1 && all_clients_initialized()) { remove_fake_fb(); } } void install_padded_fb(char *geom) { int w, h; int ok = 1; if (! geom || *geom == '\0') { ok = 0; } else if (sscanf(geom, "%dx%d", &w, &h) != 2) { ok = 0; } w = nabs(w); h = nabs(h); if (w < 5) w = 5; if (h < 5) h = 5; if (!ok) { rfbLog("skipping invalid pad geometry: '%s'\n", NONUL(geom)); return; } install_fake_fb(w, h, bpp); pad_geometry_time = time(0); } static void initialize_snap_fb(void) { if (snap_fb) { free(snap_fb); } snap = XGetImage_wr(dpy, window, 0, 0, dpy_x, dpy_y, AllPlanes, ZPixmap); snap_fb = snap->data; } static XImage *initialize_raw_fb(void) { char *str, *q; int w, h, b, shmid = 0; unsigned long rm = 0, gm = 0, bm = 0; static XImage ximage_struct; /* n.b.: not (XImage *) */ int closedpy = 1, i, m; if (raw_fb_addr || raw_fb_seek) { if (raw_fb_shm) { shmdt(raw_fb_addr); #if LIBVNCSERVER_HAVE_MMAP } else if (raw_fb_mmap) { munmap(raw_fb_addr, raw_fb_mmap); if (raw_fb_fd >= 0) { close(raw_fb_fd); } #endif } else if (raw_fb_seek) { if (raw_fb_fd >= 0) { close(raw_fb_fd); } } raw_fb_addr = NULL; } if (! raw_fb_str) { return NULL; } if ( (q = strstr(raw_fb_str, "setup:")) == raw_fb_str) { FILE *pipe; char line[1024], *t; set_child_info(); q += strlen("setup:"); if (no_external_cmds) { rfbLogEnable(1); rfbLog("cannot run external commands in -nocmds " "mode:\n"); rfbLog(" \"%s\"\n", q); rfbLog(" exiting.\n"); clean_up_exit(1); } rfbLog("running command to setup rawfb: %s\n", q); pipe = popen(q, "r"); if (! pipe) { rfbLogEnable(1); rfbLog("popen of setup command failed.\n"); rfbLogPerror("popen"); clean_up_exit(1); } line[0] = '\0'; if (fgets(line, 1024, pipe) == NULL) { rfbLogEnable(1); rfbLog("read of setup command failed.\n"); clean_up_exit(1); } pclose(pipe); str = strdup(line); t = str; while (*t != '\0') { if (*t == '\n') { *t = '\0'; } t++; } rfbLog("setup command returned: %s\n", str); } else { str = strdup(raw_fb_str); } /* * uppercase means do not close the display (e.g. for remote control) */ if (strstr(str, "SHM:") == str) { closedpy = 0; str[0] = 's'; str[1] = 'h'; str[2] = 'm'; } else if (strstr(str, "MAP:") == str) { closedpy = 0; str[0] = 'm'; str[1] = 'a'; str[2] = 'p'; } else if (strstr(str, "MMAP:") == str) { closedpy = 0; str[0] = 'm'; str[1] = 'm'; str[2] = 'a'; str[3] = 'p'; } else if (strstr(str, "FILE:") == str) { str[0] = 'f'; str[1] = 'i'; str[2] = 'l'; str[3] = 'e'; closedpy = 0; } if (closedpy && !view_only && got_noviewonly) { rfbLog("not closing X DISPLAY under -noviewonly option.\n"); closedpy = 0; if (! window) { window = rootwin; } } if (! raw_fb_orig_dpy && dpy) { raw_fb_orig_dpy = strdup(DisplayString(dpy)); } #ifndef BOLDLY_CLOSE_DISPLAY #define BOLDLY_CLOSE_DISPLAY 1 #endif #if BOLDLY_CLOSE_DISPLAY if (closedpy) { if (dpy) { rfbLog("closing X DISPLAY: %s in rawfb mode.\n", DisplayString(dpy)); XCloseDisplay(dpy); /* yow! */ } dpy = NULL; } #endif /* * -rawfb shm:163938442@640x480x32:ff/ff00/ff0000+3000 * -rawfb map:/path/to/file@640x480x32:ff/ff00/ff0000 * -rawfb file:/path/to/file@640x480x32:ff/ff00/ff0000 */ raw_fb_offset = 0; /* +O offset */ if ((q = strrchr(str, '+')) != NULL) { if (sscanf(q, "+%d", &raw_fb_offset) == 1) { *q = '\0'; } else { raw_fb_offset = 0; } } /* :R/G/B masks */ if ((q = strrchr(str, ':')) != NULL) { if (sscanf(q, ":%lx/%lx/%lx", &rm, &gm, &bm) == 3) { *q = '\0'; } else if (sscanf(q, ":0x%lx/0x%lx/0x%lx", &rm, &gm, &bm)== 3) { *q = '\0'; } else if (sscanf(q, ":%lu/%lu/%lu", &rm, &gm, &bm) == 3) { *q = '\0'; } else { rm = 0; gm = 0; bm = 0; } } if ((q = strrchr(str, '@')) == NULL) { rfbLogEnable(1); rfbLog("invalid rawfb str: %s\n", str); clean_up_exit(1); } /* @WxHxB */ if (sscanf(q, "@%dx%dx%d", &w, &h, &b) != 3) { rfbLogEnable(1); rfbLog("invalid rawfb str: %s\n", str); clean_up_exit(1); } *q = '\0'; if (strstr(str, "shm:") != str && strstr(str, "mmap:") != str && strstr(str, "map:") != str && strstr(str, "file:") != str) { /* hmmm, not following directions, see if map: applies */ struct stat sbuf; if (stat(str, &sbuf) == 0) { char *new; int len = strlen("map:") + strlen(str) + 1; rfbLog("no type prefix: %s\n", raw_fb_str); rfbLog(" but file exists, so assuming: map:%s\n", raw_fb_str); new = (char *) malloc(len); strcpy(new, "map:"); strcat(new, str); free(str); str = new; } } dpy_x = wdpy_x = w; dpy_y = wdpy_y = h; off_x = 0; off_y = 0; raw_fb_shm = 0; raw_fb_mmap = 0; raw_fb_seek = 0; raw_fb_fd = -1; raw_fb_addr = NULL; if (sscanf(str, "shm:%d", &shmid) == 1) { /* shm:N */ #if LIBVNCSERVER_HAVE_XSHM raw_fb_addr = (char *) shmat(shmid, 0, SHM_RDONLY); if (! raw_fb_addr) { rfbLogEnable(1); rfbLog("failed to attach to shm: %d, %s\n", shmid, str); rfbLogPerror("shmat"); clean_up_exit(1); } raw_fb_shm = 1; rfbLog("rawfb: shm: %d W: %d H: %d B: %d addr: %p\n", shmid, w, h, b, raw_fb_addr); #else rfbLogEnable(1); rfbLog("x11vnc was compiled without shm support.\n"); rfbLogPerror("shmat"); clean_up_exit(1); #endif } else if (strstr(str, "map:") == str || strstr(str, "mmap:") == str || strstr(str, "file:") == str) { /* map:/path/... or file:/path */ int fd, do_mmap = 1, size; struct stat sbuf; if (*str == 'f') { do_mmap = 0; } q = strchr(str, ':'); q++; fd = open(q, O_RDONLY); if (fd < 0) { rfbLogEnable(1); rfbLog("failed to open file: %s, %s\n", q, str); rfbLogPerror("open"); clean_up_exit(1); } raw_fb_fd = fd; size = w*h*b/8 + raw_fb_offset; if (fstat(fd, &sbuf) == 0) { if (S_ISREG(sbuf.st_mode)) { if (0) size = sbuf.st_size; } else { rfbLog("raw fb is non-regular file: %s\n", q); } } if (do_mmap) { #if LIBVNCSERVER_HAVE_MMAP raw_fb_addr = mmap(0, size, PROT_READ, MAP_SHARED, fd, 0); if (raw_fb_addr == MAP_FAILED || raw_fb_addr == NULL) { rfbLogEnable(1); rfbLog("failed to mmap file: %s, %s\n", q, str); rfbLog(" raw_fb_addr: %p\n", raw_fb_addr); rfbLogPerror("mmap"); clean_up_exit(1); } raw_fb_mmap = size; rfbLog("rawfb: mmap file: %s\n", q); rfbLog(" w: %d h: %d b: %d addr: %p sz: %d\n", w, h, b, raw_fb_addr, size); #else rfbLog("mmap(2) not supported on system, using" " slower lseek(2)\n"); raw_fb_seek = size; #endif } else { raw_fb_seek = size; rfbLog("rawfb: seek file: %s\n", q); rfbLog(" W: %d H: %d B: %d sz: %d\n", w, h, b, size); } } else { rfbLogEnable(1); rfbLog("invalid rawfb str: %s\n", str); clean_up_exit(1); } if (! raw_fb_image) { raw_fb_image = &ximage_struct; } initialize_clipshift(); raw_fb = (char *) malloc(dpy_x * dpy_y * b/8); raw_fb_image->data = raw_fb; raw_fb_image->format = ZPixmap; raw_fb_image->width = dpy_x; raw_fb_image->height = dpy_y; raw_fb_image->bits_per_pixel = b; raw_fb_image->bytes_per_line = dpy_x*b/8; if (rm == 0 && gm == 0 && bm == 0) { /* guess masks... */ if (b == 24 || b == 32) { rm = 0xff0000; gm = 0x00ff00; bm = 0x0000ff; } else if (b == 16) { rm = 0xf800; gm = 0x07e0; bm = 0x001f; } else if (b == 8) { rm = 0x07; gm = 0x38; bm = 0xc0; } } raw_fb_image->red_mask = rm; raw_fb_image->green_mask = gm; raw_fb_image->blue_mask = bm; raw_fb_image->depth = 0; m = 1; for (i=0; i<32; i++) { if (rm & m) { raw_fb_image->depth++; } if (gm & m) { raw_fb_image->depth++; } if (bm & m) { raw_fb_image->depth++; } m = m << 1; } if (! raw_fb_image->depth) { raw_fb_image->depth = (b == 32) ? 24 : b; } depth = raw_fb_image->depth; if (clipshift) { memset(raw_fb, 0xff, dpy_x * dpy_y * b/8); } else if (raw_fb_addr) { memcpy(raw_fb, raw_fb_addr + raw_fb_offset, dpy_x*dpy_y*b/8); } else { memset(raw_fb, 0xff, dpy_x * dpy_y * b/8); } rfbLog("rawfb: raw_fb %p\n", raw_fb); free(str); return raw_fb_image; } static void initialize_clipshift(void) { clipshift = 0; cdpy_x = cdpy_y = coff_x = coff_y = 0; if (clip_str) { int w, h, x, y, bad = 0; if (parse_geom(clip_str, &w, &h, &x, &y, wdpy_x, wdpy_y)) { if (x < 0) { x = 0; } if (y < 0) { y = 0; } if (x + w > wdpy_x) { w = wdpy_x - x; } if (y + h > wdpy_y) { h = wdpy_y - y; } if (w <= 0 || h <= 0) { bad = 1; } } else { bad = 1; } if (bad) { rfbLog("skipping invalid -clip WxH+X+Y: %s\n", clip_str); } else { /* OK, change geom behind everyone's back... */ cdpy_x = w; cdpy_y = h; coff_x = x; coff_y = y; clipshift = 1; dpy_x = cdpy_x; dpy_y = cdpy_y; } } } static int wait_until_mapped(Window win) { int ms = 50, waittime = 30; time_t start = time(0); XWindowAttributes attr; while (1) { if (! valid_window(win, NULL, 0)) { if (time(0) > start + waittime) { break; } usleep(ms * 1000); continue; } if (! XGetWindowAttributes(dpy, win, &attr)) { return 0; } if (attr.map_state == IsViewable) { return 1; } usleep(ms * 1000); } return 0; } /* * initialize a fb for the X display */ XImage *initialize_xdisplay_fb(void) { XImage *fb; char *vis_str = visual_str; int try = 0, subwin_tries = 3; XErrorHandler old_handler = NULL; int subwin_bs; if (raw_fb_str) { return initialize_raw_fb(); } X_LOCK; if (subwin) { if (subwin_wait_mapped) { wait_until_mapped(subwin); } if (!valid_window((Window) subwin, NULL, 0)) { rfbLogEnable(1); rfbLog("invalid sub-window: 0x%lx\n", subwin); X_UNLOCK; clean_up_exit(1); } } if (overlay) { /* * ideally we'd like to not have to cook up the * visual variables but rather let it all come out * of XReadScreen(), however there is no way to get * a default visual out of it, so we pretend -visual * TrueColor:NN was supplied with NN usually 24. */ char str[32]; Window twin = subwin ? subwin : rootwin; XImage *xi; xi = xreadscreen(dpy, twin, 0, 0, 8, 8, False); sprintf(str, "TrueColor:%d", xi->depth); if (xi->depth != 24 && ! quiet) { rfbLog("warning: overlay image has depth %d " "instead of 24.\n", xi->depth); } XDestroyImage(xi); if (visual_str != NULL && ! quiet) { rfbLog("warning: replacing '-visual %s' by '%s' " "for use with -overlay\n", visual_str, str); } vis_str = strdup(str); } if (vis_str != NULL) { set_visual(vis_str); if (vis_str != visual_str) { free(vis_str); } } /* set up parameters for subwin or non-subwin cases: */ if (! subwin) { /* full screen */ window = rootwin; dpy_x = wdpy_x = DisplayWidth(dpy, scr); dpy_y = wdpy_y = DisplayHeight(dpy, scr); off_x = 0; off_y = 0; /* this may be overridden via visual_id below */ default_visual = DefaultVisual(dpy, scr); } else { /* single window */ XWindowAttributes attr; window = (Window) subwin; if (! XGetWindowAttributes(dpy, window, &attr)) { rfbLogEnable(1); rfbLog("invalid window: 0x%lx\n", window); X_UNLOCK; clean_up_exit(1); } dpy_x = wdpy_x = attr.width; dpy_y = wdpy_y = attr.height; subwin_bs = attr.backing_store; /* this may be overridden via visual_id below */ default_visual = attr.visual; X_UNLOCK; set_offset(); X_LOCK; } initialize_clipshift(); /* initialize depth to reasonable value, visual_id may override */ depth = DefaultDepth(dpy, scr); if (visual_id) { int n; XVisualInfo vinfo_tmpl, *vinfo; /* * we are in here from -visual or -overlay options * visual_id and visual_depth were set in set_visual(). */ vinfo_tmpl.visualid = visual_id; vinfo = XGetVisualInfo(dpy, VisualIDMask, &vinfo_tmpl, &n); if (vinfo == NULL || n == 0) { rfbLogEnable(1); rfbLog("could not match visual_id: 0x%x\n", (int) visual_id); X_UNLOCK; clean_up_exit(1); } default_visual = vinfo->visual; depth = vinfo->depth; if (visual_depth) { /* force it from -visual MooColor:NN */ depth = visual_depth; } if (! quiet) { fprintf(stderr, " initialize_xdisplay_fb()\n"); fprintf(stderr, " Visual*: %p\n", (void *) vinfo->visual); fprintf(stderr, " visualid: 0x%x\n", (int) vinfo->visualid); fprintf(stderr, " screen: %d\n", vinfo->screen); fprintf(stderr, " depth: %d\n", vinfo->depth); fprintf(stderr, " class: %d\n", vinfo->class); fprintf(stderr, " red_mask: 0x%08lx %s\n", vinfo->red_mask, bitprint(vinfo->red_mask, 32)); fprintf(stderr, " green_mask: 0x%08lx %s\n", vinfo->green_mask, bitprint(vinfo->green_mask, 32)); fprintf(stderr, " blue_mask: 0x%08lx %s\n", vinfo->blue_mask, bitprint(vinfo->blue_mask, 32)); fprintf(stderr, " cmap_size: %d\n", vinfo->colormap_size); fprintf(stderr, " bits b/rgb: %d\n", vinfo->bits_per_rgb); fprintf(stderr, "\n"); } XFree(vinfo); } if (! quiet) { rfbLog("Default visual ID: 0x%x\n", (int) XVisualIDFromVisual(default_visual)); } again: if (subwin) { int shift = 0; int subwin_x, subwin_y; int disp_x = DisplayWidth(dpy, scr); int disp_y = DisplayHeight(dpy, scr); Window twin; /* subwins can be a dicey if they are changing size... */ trapped_xerror = 0; old_handler = XSetErrorHandler(trap_xerror); XTranslateCoordinates(dpy, window, rootwin, 0, 0, &subwin_x, &subwin_y, &twin); if (subwin_x + wdpy_x > disp_x) { shift = 1; subwin_x = disp_x - wdpy_x - 3; } if (subwin_y + wdpy_y > disp_y) { shift = 1; subwin_y = disp_y - wdpy_y - 3; } if (subwin_x < 0) { shift = 1; subwin_x = 1; } if (subwin_y < 0) { shift = 1; subwin_y = 1; } if (shift) { XMoveWindow(dpy, window, subwin_x, subwin_y); } XMapRaised(dpy, window); XRaiseWindow(dpy, window); XFlush(dpy); } try++; if (nofb) { /* * For -nofb we do not allocate the framebuffer, so we * can save a few MB of memory. */ fb = XCreateImage_wr(dpy, default_visual, depth, ZPixmap, 0, NULL, dpy_x, dpy_y, BitmapPad(dpy), 0); } else if (visual_id) { /* * we need to call XCreateImage to supply the visual */ fb = XCreateImage_wr(dpy, default_visual, depth, ZPixmap, 0, NULL, dpy_x, dpy_y, BitmapPad(dpy), 0); fb->data = (char *) malloc(fb->bytes_per_line * fb->height); } else { fb = XGetImage_wr(dpy, window, 0, 0, dpy_x, dpy_y, AllPlanes, ZPixmap); if (! quiet) { rfbLog("Read initial data from X display into" " framebuffer.\n"); } } if (subwin) { XSetErrorHandler(old_handler); if (trapped_xerror) { rfbLog("trapped GetImage at SUBWIN creation.\n"); if (try < subwin_tries) { usleep(250 * 1000); if (!get_window_size(window, &wdpy_x, &wdpy_y)) { rfbLogEnable(1); rfbLog("could not get size of subwin " "0x%lx\n", subwin); X_UNLOCK; clean_up_exit(1); } goto again; } } trapped_xerror = 0; } else if (! fb && try == 1) { /* try once more */ usleep(250 * 1000); goto again; } if (use_snapfb) { initialize_snap_fb(); } X_UNLOCK; if (fb->bits_per_pixel == 24 && ! quiet) { rfbLog("warning: 24 bpp may have poor performance.\n"); } return fb; } void parse_scale_string(char *str, double *factor, int *scaling, int *blend, int *nomult4, int *pad, int *interpolate, int *numer, int *denom) { int m, n; char *p, *tstr; double f; *factor = 1.0; *scaling = 0; *blend = 1; *nomult4 = 0; *pad = 0; *interpolate = 0; *numer = 0, *denom = 0; if (str == NULL || str[0] == '\0') { return; } tstr = strdup(str); if ( (p = strchr(tstr, ':')) != NULL) { /* options */ if (strstr(p+1, "nb") != NULL) { *blend = 0; } if (strstr(p+1, "fb") != NULL) { *blend = 2; } if (strstr(p+1, "n4") != NULL) { *nomult4 = 1; } if (strstr(p+1, "in") != NULL) { *interpolate = 1; } if (strstr(p+1, "pad") != NULL) { *pad = 1; } if (strstr(p+1, "nocr") != NULL) { /* global */ scaling_copyrect = 0; } else if (strstr(p+1, "cr") != NULL) { /* global */ scaling_copyrect = 1; } *p = '\0'; } if (strchr(tstr, '.') != NULL) { double test, diff, eps = 1.0e-7; if (sscanf(tstr, "%lf", &f) != 1) { rfbLogEnable(1); rfbLog("invalid -scale arg: %s\n", tstr); clean_up_exit(1); } *factor = (double) f; /* look for common fractions from small ints: */ for (n=2; n<=10; n++) { for (m=1; m 2) { /* reset width to be multiple of 4 */ int width0 = width; if ((width+1) % 4 == 0) { width = width+1; } else if ((width-1) % 4 == 0) { width = width-1; } else if ((width+2) % 4 == 0) { width = width+2; } rfbLog("reset scaled width %d -> %d to be a multiple of" " 4 (to\n", width0, width); rfbLog("make vncviewers happy). use -scale m/n:n4 to " "disable.\n"); } scaled_x = width; scaled_y = height; *width_in = width; *height_in = height; } } /* * initialize the rfb framebuffer/screen */ void initialize_screen(int *argc, char **argv, XImage *fb) { int have_masks = 0; int width = fb->width; int height = fb->height; int create_screen = screen ? 0 : 1; int bits_per_color; int fb_bpp, fb_Bpl, fb_depth; bpp = fb->bits_per_pixel; fb_bpp = (int) fb->bits_per_pixel; fb_Bpl = (int) fb->bytes_per_line; fb_depth = (int) fb->depth; main_bytes_per_line = fb->bytes_per_line; if (cmap8to24) { if (raw_fb) { if (!quiet) rfbLog("disabling -8to24 mode" " in raw_fb mode.\n"); cmap8to24 = 0; } else if (depth == 24) { if (fb_bpp != 32) { if (!quiet) rfbLog("disabling -8to24 mode:" " bpp != 32 with depth == 24\n"); cmap8to24 = 0; } } else if (depth == 8) { /* need to cook up the screen fb to be depth 24 */ fb_bpp = 32; fb_depth = 24; } else { if (!quiet) rfbLog("disabling -8to24 mode:" " default depth not 24 or 8\n"); cmap8to24 = 0; } } setup_scaling(&width, &height); if (scaling) { rfbLog("scaling screen: %dx%d -> %dx%d scale_fac=%.5f\n", fb->width, fb->height, scaled_x, scaled_y, scale_fac); rfb_bytes_per_line = (main_bytes_per_line / fb->width) * width; } else { rfb_bytes_per_line = main_bytes_per_line; } if (cmap8to24 && depth == 8) { rfb_bytes_per_line *= 4; } /* * These are just hints wrt pixel format just to let * rfbGetScreen/rfbNewFramebuffer proceed with reasonable * defaults. We manually set them in painful detail below. */ bits_per_color = guess_bits_per_color(fb_bpp); /* n.b. samplesPerPixel (set = 1 here) seems to be unused. */ if (create_screen) { if (use_openssl) { openssl_init(); } else if (use_stunnel) { setup_stunnel(0, argc, argv); } screen = rfbGetScreen(argc, argv, width, height, bits_per_color, 1, fb_bpp/8); if (screen && http_dir) { http_connections(1); } } else { /* set set frameBuffer member below. */ rfbLog("rfbNewFramebuffer(0x%x, 0x%x, %d, %d, %d, %d, %d)\n", screen, NULL, width, height, bits_per_color, 1, fb_bpp/8); /* these are probably overwritten, but just to be safe: */ screen->bitsPerPixel = fb_bpp; screen->depth = fb_depth; rfbNewFramebuffer(screen, NULL, width, height, bits_per_color, 1, (int) fb_bpp/8); } if (! screen) { int i; rfbLogEnable(1); rfbLog("\n"); rfbLog("failed to create rfb screen.\n"); for (i=0; i< *argc; i++) { rfbLog("\t[%d] %s\n", i, argv[i]); } clean_up_exit(1); } if (create_screen && *argc != 1) { int i; rfbLogEnable(1); rfbLog("*** unrecognized option(s) ***\n"); for (i=1; i< *argc; i++) { rfbLog("\t[%d] %s\n", i, argv[i]); } rfbLog("For a list of options run: x11vnc -opts\n"); rfbLog("or for the full help: x11vnc -help\n"); rfbLog("\n"); rfbLog("Here is a list of removed or obsolete" " options:\n"); rfbLog("\n"); rfbLog("removed: -hints, -nohints\n"); rfbLog("removed: -cursorposall\n"); rfbLog("\n"); rfbLog("renamed: -old_copytile, use -onetile\n"); rfbLog("renamed: -mouse, use -cursor\n"); rfbLog("renamed: -mouseX, use -cursor X\n"); rfbLog("renamed: -X, use -cursor X\n"); rfbLog("renamed: -nomouse, use -nocursor\n"); rfbLog("renamed: -old_pointer, use -pointer_mode 1\n"); clean_up_exit(1); } /* set up format from scratch: */ screen->paddedWidthInBytes = rfb_bytes_per_line; screen->serverFormat.bitsPerPixel = fb_bpp; screen->serverFormat.depth = fb_depth; screen->serverFormat.trueColour = TRUE; screen->serverFormat.redShift = 0; screen->serverFormat.greenShift = 0; screen->serverFormat.blueShift = 0; screen->serverFormat.redMax = 0; screen->serverFormat.greenMax = 0; screen->serverFormat.blueMax = 0; /* these main_* formats are used generally. */ main_red_shift = 0; main_green_shift = 0; main_blue_shift = 0; main_red_max = 0; main_green_max = 0; main_blue_max = 0; main_red_mask = fb->red_mask; main_green_mask = fb->green_mask; main_blue_mask = fb->blue_mask; have_masks = ((fb->red_mask|fb->green_mask|fb->blue_mask) != 0); if (force_indexed_color) { have_masks = 0; } if (cmap8to24 && depth == 8) { XVisualInfo vinfo; /* more cooking up... */ have_masks = 2; /* need to fetch TrueColor visual */ X_LOCK; if (XMatchVisualInfo(dpy, scr, 24, TrueColor, &vinfo)) { main_red_mask = vinfo.red_mask; main_green_mask = vinfo.green_mask; main_blue_mask = vinfo.blue_mask; } else if (fb->byte_order == LSBFirst) { main_red_mask = 0x00ff0000; main_green_mask = 0x0000ff00; main_blue_mask = 0x000000ff; } else { main_red_mask = 0x000000ff; main_green_mask = 0x0000ff00; main_blue_mask = 0x00ff0000; } X_UNLOCK; } if (! have_masks && screen->serverFormat.bitsPerPixel == 8 && dpy && CellsOfScreen(ScreenOfDisplay(dpy, scr))) { /* indexed color */ if (!quiet) { rfbLog("\n"); rfbLog("X display %s is 8bpp indexed color\n", DisplayString(dpy)); if (! flash_cmap && ! overlay) { rfbLog("\n"); rfbLog("In 8bpp PseudoColor mode if you " "experience color\n"); rfbLog("problems you may want to enable " "following the\n"); rfbLog("changing colormap by using the " "-flashcmap option.\n"); rfbLog("\n"); } } screen->serverFormat.trueColour = FALSE; indexed_color = 1; set_colormap(1); debug_colormap(fb); } else { /* * general case, we call it truecolor, but could be direct * color, static color, etc.... */ if (! quiet) { if (raw_fb) { rfbLog("\n"); rfbLog("Raw fb at addr %p is %dbpp depth=%d " "true color\n", raw_fb_addr, fb_bpp, fb_depth); } else if (have_masks == 2) { rfbLog("\n"); rfbLog("X display %s is %dbpp depth=%d indexed " "color (-8to24 mode)\n", DisplayString(dpy), fb->bits_per_pixel, fb->depth); } else { rfbLog("\n"); rfbLog("X display %s is %dbpp depth=%d true " "color\n", DisplayString(dpy), fb_bpp, fb_depth); } } indexed_color = 0; /* convert masks to bit shifts and max # colors */ if (main_red_mask) { while (! (main_red_mask & (1 << screen->serverFormat.redShift))) { screen->serverFormat.redShift++; } } if (main_green_mask) { while (! (main_green_mask & (1 << screen->serverFormat.greenShift))) { screen->serverFormat.greenShift++; } } if (main_blue_mask) { while (! (main_blue_mask & (1 << screen->serverFormat.blueShift))) { screen->serverFormat.blueShift++; } } screen->serverFormat.redMax = main_red_mask >> screen->serverFormat.redShift; screen->serverFormat.greenMax = main_green_mask >> screen->serverFormat.greenShift; screen->serverFormat.blueMax = main_blue_mask >> screen->serverFormat.blueShift; main_red_max = screen->serverFormat.redMax; main_green_max = screen->serverFormat.greenMax; main_blue_max = screen->serverFormat.blueMax; main_red_shift = screen->serverFormat.redShift; main_green_shift = screen->serverFormat.greenShift; main_blue_shift = screen->serverFormat.blueShift; } #if !SMALL_FOOTPRINT if (!quiet) { fprintf(stderr, "\n"); fprintf(stderr, "FrameBuffer Info:\n"); fprintf(stderr, " width: %d\n", fb->width); fprintf(stderr, " height: %d\n", fb->height); fprintf(stderr, " scaled_width: %d\n", width); fprintf(stderr, " scaled_height: %d\n", height); fprintf(stderr, " indexed_color: %d\n", indexed_color); fprintf(stderr, " bits_per_pixel: %d\n", fb->bits_per_pixel); fprintf(stderr, " depth: %d\n", fb->depth); fprintf(stderr, " red_mask: 0x%08lx %s\n", fb->red_mask, bitprint(fb->red_mask, 32)); fprintf(stderr, " green_mask: 0x%08lx %s\n", fb->green_mask, bitprint(fb->green_mask, 32)); fprintf(stderr, " blue_mask: 0x%08lx %s\n", fb->blue_mask, bitprint(fb->blue_mask, 32)); if (cmap8to24) { fprintf(stderr, " 8to24 info:\n"); fprintf(stderr, " fb_bpp: %d\n", fb_bpp); fprintf(stderr, " fb_depth: %d\n", fb_depth); fprintf(stderr, " red_mask: 0x%08lx %s\n", main_red_mask, bitprint(main_red_mask, 32)); fprintf(stderr, " green_mask: 0x%08lx %s\n", main_green_mask, bitprint(main_green_mask, 32)); fprintf(stderr, " blue_mask: 0x%08lx %s\n", main_blue_mask, bitprint(main_blue_mask, 32)); } fprintf(stderr, " red: max: %3d shift: %2d\n", main_red_max, main_red_shift); fprintf(stderr, " green: max: %3d shift: %2d\n", main_green_max, main_green_shift); fprintf(stderr, " blue: max: %3d shift: %2d\n", main_blue_max, main_blue_shift); fprintf(stderr, " mainfb_bytes_per_line: %d\n", main_bytes_per_line); fprintf(stderr, " rfb_fb_bytes_per_line: %d\n", rfb_bytes_per_line); switch(fb->format) { case XYBitmap: fprintf(stderr, " format: XYBitmap\n"); break; case XYPixmap: fprintf(stderr, " format: XYPixmap\n"); break; case ZPixmap: fprintf(stderr, " format: ZPixmap\n"); break; default: fprintf(stderr, " format: %d\n", fb->format); break; } switch(fb->byte_order) { case LSBFirst: fprintf(stderr, " byte_order: LSBFirst\n"); break; case MSBFirst: fprintf(stderr, " byte_order: MSBFirst\n"); break; default: fprintf(stderr, " byte_order: %d\n", fb->byte_order); break; } fprintf(stderr, " bitmap_pad: %d\n", fb->bitmap_pad); fprintf(stderr, " bitmap_unit: %d\n", fb->bitmap_unit); switch(fb->bitmap_bit_order) { case LSBFirst: fprintf(stderr, " bitmap_bit_order: LSBFirst\n"); break; case MSBFirst: fprintf(stderr, " bitmap_bit_order: MSBFirst\n"); break; default: fprintf(stderr, " bitmap_bit_order: %d\n", fb->bitmap_bit_order); break; } } if (overlay && ! quiet) { rfbLog("\n"); rfbLog("Overlay mode enabled: If you experience color\n"); rfbLog("problems when popup menus are on the screen, try\n"); rfbLog("disabling SaveUnders in your X server, one way is\n"); rfbLog("to start the X server with the '-su' option, e.g.:\n"); rfbLog("Xsun -su ... see Xserver(1), xinit(1) for more info.\n"); rfbLog("\n"); } #endif /* nofb is for pointer/keyboard only handling. */ if (nofb) { main_fb = NULL; rfb_fb = main_fb; cmap8to24_fb = NULL; screen->displayHook = nofb_hook; } else { main_fb = fb->data; rfb_fb = NULL; cmap8to24_fb = NULL; if (cmap8to24) { int n = main_bytes_per_line * fb->height; if (depth == 8) { n *= 4; } cmap8to24_fb = (char *) malloc(n); memset(cmap8to24_fb, 0, n); } if (scaling) { rfb_fb = (char *) malloc(rfb_bytes_per_line * height); memset(rfb_fb, 0, rfb_bytes_per_line * height); } else if (cmap8to24) { rfb_fb = cmap8to24_fb; } else { rfb_fb = main_fb; } } screen->frameBuffer = rfb_fb; if (!quiet) { fprintf(stderr, " main_fb: %p\n", main_fb); fprintf(stderr, " rfb_fb: %p\n", rfb_fb); fprintf(stderr, " 8to24_fb: %p\n", cmap8to24_fb); fprintf(stderr, "\n"); } /* may need, bpp, main_red_max, etc. */ parse_wireframe(); parse_scroll_copyrect(); setup_cursors_and_push(); if (scaling || cmap8to24) { mark_rect_as_modified(0, 0, dpy_x, dpy_y, 0); } if (! create_screen) { rfbClientIteratorPtr iter; rfbClientPtr cl; /* * since bits_per_color above may have been approximate, * try to reset the individual translation tables... * we do not seem to need this with rfbGetScreen()... */ if (!quiet) rfbLog("calling setTranslateFunction()...\n"); iter = rfbGetClientIterator(screen); while ((cl = rfbClientIteratorNext(iter)) != NULL) { screen->setTranslateFunction(cl); } rfbReleaseClientIterator(iter); if (!quiet) rfbLog(" done.\n"); do_copy_screen = 1; /* done for framebuffer change case */ return; } /* * the rest is screen server initialization, etc, only needed * at screen creation time. */ /* event callbacks: */ screen->newClientHook = new_client; screen->kbdAddEvent = keyboard; screen->ptrAddEvent = pointer; screen->setXCutText = xcut_receive; /* called from inetd, we need to treat stdio as our socket */ if (inetd && use_openssl) { /* accept_openssl() called later */ screen->port = 0; } else if (inetd) { int fd = dup(0); if (fd < 0) { rfbLogEnable(1); rfbErr("dup(0) = %d failed.\n", fd); rfbLogPerror("dup"); clean_up_exit(1); } fclose(stdin); fclose(stdout); /* we keep stderr for logging */ screen->inetdSock = fd; screen->port = 0; } else if (! got_rfbport) { screen->autoPort = TRUE; } if (! got_nevershared && ! got_alwaysshared) { if (shared) { screen->alwaysShared = TRUE; } else { screen->neverShared = TRUE; } screen->dontDisconnect = TRUE; } if (! got_deferupdate) { screen->deferUpdateTime = defer_update; } rfbInitServer(screen); if (use_openssl) { openssl_port(); if (https_port_num >= 0) { https_port(); } } install_passwds(); } static void announce(int lport, int ssl, char *iface) { char *host = this_host(); char *tvdt; if (! ssl) { tvdt = "The VNC desktop is: "; } else { tvdt = "The SSL VNC desktop is: "; } if (iface != NULL && *iface != '\0' && strcmp(iface, "any")) { host = iface; } if (host != NULL) { /* note that vncviewer special cases 5900-5999 */ int sz = 256; if (inetd) { ; /* should not occur (port) */ } else if (quiet) { if (lport >= 5900) { snprintf(vnc_desktop_name, sz, "%s:%d", host, lport - 5900); fprintf(stderr, "%s %s\n", tvdt, vnc_desktop_name); } else { snprintf(vnc_desktop_name, sz, "%s:%d", host, lport); fprintf(stderr, "%s %s\n", tvdt, vnc_desktop_name); } } else if (lport >= 5900) { snprintf(vnc_desktop_name, sz, "%s:%d", host, lport - 5900); fprintf(stderr, "%s %s\n", tvdt, vnc_desktop_name); if (lport >= 6000) { rfbLog("possible aliases: %s:%d, " "%s::%d\n", host, lport, host, lport); } } else { snprintf(vnc_desktop_name, sz, "%s:%d", host, lport); fprintf(stderr, "%s %s\n", tvdt, vnc_desktop_name); rfbLog("possible alias: %s::%d\n", host, lport); } } } static void announce_http(int lport, int ssl, char *iface) { char *host = this_host(); char *jvu; if (ssl == 1) { jvu = "Java SSL viewer URL: https"; } else if (ssl == 2) { jvu = "Java SSL viewer URL: http"; } else { jvu = "Java viewer URL: http"; } if (iface != NULL && *iface != '\0' && strcmp(iface, "any")) { host = iface; } if (host != NULL) { if (! inetd) { fprintf(stderr, "%s://%s:%d/\n", jvu, host, lport); } } } void set_vnc_desktop_name(void) { sprintf(vnc_desktop_name, "unknown"); if (inetd) { sprintf(vnc_desktop_name, "%s/inetd-no-further-clients", this_host()); } if (screen->port) { if (! quiet) { rfbLog("\n"); } if (use_openssl) { announce(screen->port, 1, listen_str); } else { announce(screen->port, 0, listen_str); } if (stunnel_port) { announce(stunnel_port, 1, NULL); } if (screen->httpListenSock > -1 && screen->httpPort) { if (use_openssl) { announce_http(screen->port, 1, listen_str); if (https_port_num >= 0) { announce_http(https_port_num, 1, listen_str); } announce_http(screen->httpPort, 2, listen_str); } else if (use_stunnel) { announce_http(screen->httpPort, 2, listen_str); } else { announce_http(screen->httpPort, 0, listen_str); } } fflush(stderr); if (inetd) { ; /* should not occur (port != 0) */ } else { fprintf(stdout, "PORT=%d\n", screen->port); if (stunnel_port) { fprintf(stdout, "SSLPORT=%d\n", stunnel_port); } else if (use_openssl) { fprintf(stdout, "SSLPORT=%d\n", screen->port); } fflush(stdout); if (flagfile) { FILE *flag = fopen(flagfile, "w"); if (flag) { fprintf(flag, "PORT=%d\n",screen->port); if (stunnel_port) { fprintf(flag, "SSL_PORT=%d\n", stunnel_port); } fflush(flag); fclose(flag); } else { rfbLog("could not open flag file: %s\n", flagfile); } } } fflush(stdout); } }