X11VNC_REFLECT_PASSWORD env. var., warning about compiz, improve single-port.

x11vnc/ChangeLog

+2009-06-14  Karl Runge <runge@karlrunge.com>
+	* x11vnc: Add X11VNC_REFLECT_PASSWORD env. var. for -reflect mode.
+	  Message to user about compiz problems suggesting -noxdamage.
+	  Improvements to single-port detection and logging.
+
 2009-05-21  Karl Runge <runge@karlrunge.com>
 	* x11vnc: Thread safety improvements. Add 'OpenOffice' to special
 	  case list for scroll detection.  Fix -clip mode under -rawfb.

x11vnc/README

@@ -2,7 +2,7 @@
 Copyright (C) 2002-2009 Karl J. Runge <runge@karlrunge.com>
 All rights reserved.
 
-x11vnc README file                         Date: Thu May 21 10:41:49 EDT 2009
+x11vnc README file                         Date: Sun Jun 14 13:03:59 EDT 2009
 
 The following information is taken from these URLs:
 
@@ -3222,6 +3222,13 @@ TrueColor defdepth 24
    and finally supply the [222]-noshm option (this enables the polling
    over the network).
 
+   If the Xterminal's X display is open to the network for connections,
+   you might use something like "-display xterm123:0". If you are trying
+   to do this via an SSH tunnel (assuming you can actually ssh into the
+   Xterminal) it will be a little tricky (either use the ssh "-R" option
+   or consider ssh-ing in the other direction.) In all cases the X11
+   permissions need to allow the connection.
+
    The response will likely be sluggish (maybe only one "frame" per
    second). This mode is not recommended except for "quick checks" of
    hard to get to X servers. Use something like "-wait 150" to cut down
@@ -9375,7 +9382,7 @@ References
  462. http://www.karlrunge.com/x11vnc/faq.html#faq-linuxvc
  463. http://www.karlrunge.com/x11vnc/Xdummy
  464. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-find
- 465. http://www.isc.cnrs.fr/informatique/public_notice/x11vnc
+ 465. http://www.karlrunge.com/x11vnc/xdm_one_shot.html
  466. http://www.karlrunge.com/x11vnc/faq.html#infaq_display-manager-continuously
  467. http://www.karlrunge.com/x11vnc/faq.html#infaq_findcreatedisplay
  468. http://www.karlrunge.com/x11vnc/x11vnc_opts.html#opt-display_WAIT
@@ -11655,6 +11662,10 @@ Enhanced TightVNC Viewer   (SSVNC:   SSL/SSH VNC viewer)
        inside the viewport via Arrow keys or a mouse drag.
      * Scrollbar width setting: -sbwidth n, the default is very thin, 2
        pixels, for less distracting -ycrop usage.
+     * Selection text sending and receiving can be fine-tuned with the
+       -sendclipboard, -sendalways, and -recvtext options.
+     * TightVNC compression and quality levels are automatically set
+       based on observed network latency (n.b. not bandwidth.)
      * Improvements to the [29]Popup menu, all of these can now be
        changed dynamically via the menu: ViewOnly, Toggle Bell,
        CursorShape updates, X11 Cursor, Cursor Alphablending, Toggle
@@ -12307,6 +12318,8 @@ r
         Quality Level            ~ -quality (both Tight and ZYWRLE)
         Compress Level           ~ -compresslevel
         Disable JPEG:            ~ -nojpeg  (Tight)
+        Pipeline Updates         ~ -pipeline
+
         Full Color                 as many colors as local screen allows.
         Grey scale (16 & 8-bpp)  ~ -grey, for low colors 16/8bpp modes only.
         16 bit color (BGR565)    ~ -16bpp / -bgr565
@@ -12320,7 +12333,6 @@ r
         Set Y Crop (y-max)       ~ -ycrop
         Set Scrollbar Width      ~ -sbwidth
         XGrabServer              ~ -graball
-        Pipeline Updates         ~ -pipeline
 
         UltraVNC Extensions:
 
@@ -12335,6 +12347,9 @@ r
         Note: the Ultravnc extensions only apply to servers that support
               them.  x11vnc/libvncserver supports some of them.
 
+        Send Clipboard not Primary  ~ -sendclipboard
+        Send Selection Every time   ~ -sendalways
+
    Nearly all of these can be changed dynamically in the Popup menu
    (press F8 for it):
 
@@ -12598,7 +12613,7 @@ x11vnc: a VNC server for real X displays
    Here are all of x11vnc command line options:
 % x11vnc -opts      (see below for -help long descriptions)
 
-x11vnc: allow VNC connections to real X11 displays. 0.9.8 lastmod: 2009-05-18
+x11vnc: allow VNC connections to real X11 displays. 0.9.8 lastmod: 2009-06-14
 
 x11vnc options:
   -display disp            -auth file               -N                     
@@ -12723,7 +12738,7 @@ libvncserver-tight-extension options:
 
 % x11vnc -help
 
-x11vnc: allow VNC connections to real X11 displays. 0.9.8 lastmod: 2009-05-18
+x11vnc: allow VNC connections to real X11 displays. 0.9.8 lastmod: 2009-06-14
 
 (type "x11vnc -opts" to just list the options.)
 
@@ -16696,6 +16711,11 @@ t
                        window dragging.  Consider the -nodragging option if
                        the problem is severe.
 
+                       The env. var. X11VNC_REFLECT_PASSWORD can be set to
+                       the password needed to log into the vnc host server, or
+                       to "file:path_to_file" to indicate a file containing
+                       the password as its first line.
+
                        The VNC HOST mode implies -shared.  Use -noshared as
                        a subsequent cmdline option to disable sharing.
 

x11vnc/connections.c

@@ -817,7 +817,10 @@ void client_gone(rfbClientPtr client) {
 			rfbLog("connect_once: invalid password or early "
 			   "disconnect.\n");
 			rfbLog("connect_once: waiting for next connection.\n"); 
-			accepted_client = 0;
+			accepted_client--;
+			if (accepted_client < 0) {
+				accepted_client = 0;
+			}
 			CLIENT_UNLOCK;
 			return;
 		}
@@ -2995,8 +2998,8 @@ enum rfbNewClientAction new_client(rfbClientPtr client) {
 	if (connect_once) {
 		if (screen->dontDisconnect && screen->neverShared) {
 			if (! shared && accepted_client) {
-				rfbLog("denying additional client: %s\n",
-				     client->host);
+				rfbLog("denying additional client: %s:%d\n",
+				     client->host, get_remote_port(client->sock));
 				CLIENT_UNLOCK;
 				return(RFB_CLIENT_REFUSE);
 			}
@@ -3095,7 +3098,8 @@ enum rfbNewClientAction new_client(rfbClientPtr client) {
 	cd->cmp_bytes_sent = 0;
 	cd->raw_bytes_sent = 0;
 
-	accepted_client = 1;
+	rfbLog("incr accepted_client for %s:%d.\n", client->host, get_remote_port(client->sock));
+	accepted_client++;
 	last_client = time(NULL);
 
 	if (ncache) {

x11vnc/help.c

@@ -4031,6 +4031,11 @@ void print_help(int mode) {
 "                       window dragging.  Consider the -nodragging option if\n"
 "                       the problem is severe.\n"
 "\n"
+"                       The env. var. X11VNC_REFLECT_PASSWORD can be set to\n"
+"                       the password needed to log into the vnc host server, or\n"
+"                       to \"file:path_to_file\" to indicate a file containing\n"
+"                       the password as its first line.\n"
+"\n"
 "                       The VNC HOST mode implies -shared.  Use -noshared as\n"
 "                       a subsequent cmdline option to disable sharing.\n"
 "\n"

x11vnc/screen.c

@@ -1175,6 +1175,39 @@ rfbBool vnc_reflect_resize(rfbClient *cl)  {
 	return cl->frameBuffer ? TRUE : FALSE;
 }
 
+static char* vnc_reflect_get_password(rfbClient* client) {
+	char *q, *p, *str = getenv("X11VNC_REFLECT_PASSWORD");
+	int len = 110;
+
+	if (str) {
+		len += 2*strlen(str);	
+	}
+	p = (char *) calloc(len, 1);
+	if (!str || strlen(str) == 0) {
+		fprintf(stderr, "VNC Reflect Password: ");
+		fgets(p, 100, stdin);
+	} else {
+		if (strstr(str, "file:") == str) {
+			FILE *f = fopen(str + strlen("file:"), "r");
+			if (f) {
+				fgets(p, 100, f);
+				fclose(f);
+			}
+		}
+		if (p[0] == '\0') {
+			strncpy(p, str, 100);
+		}
+	}
+	q = p;
+	while (*q != '\0') {
+		if (*q == '\n') {
+			*q = '\0';
+		}
+		q++;
+	}
+	return p;
+}
+
 char *vnc_reflect_guess(char *str, char **raw_fb_addr) {
 
 	static int first = 1;
@@ -1206,6 +1239,10 @@ char *vnc_reflect_guess(char *str, char **raw_fb_addr) {
 	client->canHandleNewFBSize = TRUE;
 	client->GotFrameBufferUpdate = vnc_reflect_got_update;
 
+	if (getenv("X11VNC_REFLECT_PASSWORD")) {
+		client->GetPassword = vnc_reflect_get_password;
+	}
+
 	if (first) {
 		argv[argc++] = "x11vnc_rawfb_vnc";
 		if (strstr(hp, "listen") == hp) {

x11vnc/sslhelper.c

@@ -124,7 +124,7 @@ static void init_prng(void);
 static void sslerrexit(void);
 static char *get_input(char *tag, char **in);
 static char *create_tmp_pem(char *path, int prompt);
-static int  ssl_init(int s_in, int s_out, int skip_vnc_tls);
+static int  ssl_init(int s_in, int s_out, int skip_vnc_tls, double last_https);
 static void ssl_xfer(int csock, int s_in, int s_out, int is_https);
 
 #ifndef FORK_OK
@@ -1397,7 +1397,7 @@ if (db) fprintf(stderr, "  waitret1=%d\n", wret);
 	}
 }
 
-static int is_ssl_readable(int s_in, time_t last_https, char *last_get,
+static int is_ssl_readable(int s_in, double last_https, char *last_get,
     int mode) {
 	int nfd, db = 0;
 	struct timeval tv;
@@ -1427,7 +1427,7 @@ static int is_ssl_readable(int s_in, time_t last_https, char *last_get,
 	 * increase the timeout if we know HTTP traffic has occurred
 	 * recently:
 	 */
-	if (time(NULL) < last_https + 30) {
+	if (dnow() < last_https + 30.0) {
 		tv.tv_sec = 10;
 		if (last_get && strstr(last_get, "VncViewer")) {
 			tv.tv_sec = 5;
@@ -1613,7 +1613,7 @@ int proxy_hack(int vncsock, int listen, int s_in, int s_out, char *cookie,
 
 if (db) fprintf(stderr, "got applet input sock1: %d\n", sock1);
 
-	if (! ssl_init(sock1, sock1, 0)) {
+	if (! ssl_init(sock1, sock1, 0, 0.0)) {
 if (db) fprintf(stderr, "ssl_init FAILED\n");
 		exit(1);
 	}
@@ -1789,7 +1789,7 @@ void accept_openssl(int mode, int presock) {
 	char cookie[256], rcookie[256], *name = NULL;
 	int vencrypt_sel = 0;
 	int anontls_sel = 0;
-	static time_t last_https = 0;
+	static double last_https = 0.0;
 	static char last_get[256];
 	static int first = 1;
 	unsigned char *rb;
@@ -1972,6 +1972,11 @@ void accept_openssl(int mode, int presock) {
 	/* now fork the child to handle the SSL: */
 	pid = fork();
 
+	if (pid > 0) {
+		rfbLog("SSL: helper for peerport %d is pid %d: \n",
+		    peerport, (int) pid);
+	}
+
 	if (pid < 0) {
 		rfbLog("SSL: accept_openssl: could not fork.\n");
 		rfbLogPerror("fork");
@@ -2023,6 +2028,7 @@ void accept_openssl(int mode, int presock) {
 		if (vncsock < 0) {
 			rfbLog("SSL: ssl_helper[%d]: could not connect"
 			    " back to: %d\n", getpid(), cport);
+			rfbLog("SSL: ssl_helper[%d]: exit case 1 (no local vncsock)\n", getpid());
 			exit(1);
 		}
 		if (db) fprintf(stderr, "vncsock %d\n", vncsock);
@@ -2036,8 +2042,9 @@ void accept_openssl(int mode, int presock) {
 			s_in = s_out = sock;
 		}
 
-		if (! ssl_init(s_in, s_out, skip_vnc_tls)) {
+		if (! ssl_init(s_in, s_out, skip_vnc_tls, last_https)) {
 			close(vncsock);
+			rfbLog("SSL: ssl_helper[%d]: exit case 2 (ssl_init failed)\n", getpid());
 			exit(1);
 		}
 
@@ -2075,6 +2082,7 @@ void accept_openssl(int mode, int presock) {
 			rfbLog("SSL: accept_openssl[%d]: no httpd socket for "
 			    "-https mode\n", getpid());
 			close(vncsock);
+			rfbLog("SSL: ssl_helper[%d]: exit case 3 (no httpd sock)\n", getpid());
 			exit(1);
 		}
 
@@ -2186,6 +2194,7 @@ void accept_openssl(int mode, int presock) {
 				write(vncsock, tbuf, strlen(tbuf));
 				close(vncsock);
 
+				rfbLog("SSL: ssl_helper[%d]: exit case 4 (check.https.proxy.connection)\n", getpid());
 				exit(0);
 			}
 			connect_to_httpd:
@@ -2282,6 +2291,7 @@ void accept_openssl(int mode, int presock) {
 			if (httpsock < 0) {
 				/* UGH, after all of that! */
 				rfbLog("Could not connect to httpd socket!\n");
+				rfbLog("SSL: ssl_helper[%d]: exit case 5.\n", getpid());
 				exit(1);
 			}
 			if (db) fprintf(stderr, "ssl_helper[%d]: httpsock: %d %d\n",
@@ -2296,6 +2306,7 @@ void accept_openssl(int mode, int presock) {
 				write(httpsock, buf, n);
 			}
 			ssl_xfer(httpsock, s_in, s_out, is_http);
+			rfbLog("SSL: ssl_helper[%d]: exit case 6 (https ssl_xfer done)\n", getpid());
 			exit(0);
 		}
 
@@ -2311,6 +2322,7 @@ void accept_openssl(int mode, int presock) {
 		wrote_cookie:
 		ssl_xfer(vncsock, s_in, s_out, 0);
 
+		rfbLog("SSL: ssl_helper[%d]: exit case 7 (ssl_xfer done)\n", getpid());
 		exit(0);
 	}
 	/* parent here */
@@ -2333,7 +2345,7 @@ void accept_openssl(int mode, int presock) {
 
 
 	if (vsock < 0) {
-		rfbLog("SSL: accept_openssl: connection from ssl_helper FAILED.\n");
+		rfbLog("SSL: accept_openssl: connection from ssl_helper[%d] FAILED.\n", pid);
 		rfbLogPerror("accept");
 
 		kill(pid, SIGTERM);
@@ -2441,15 +2453,15 @@ void accept_openssl(int mode, int presock) {
 	}
 
 	if (n != (int) strlen(cookie) || strncmp(cookie, rcookie, n)) {
-		rfbLog("SSL: accept_openssl: cookie from ssl_helper FAILED. %d\n", n);
+		rfbLog("SSL: accept_openssl: cookie from ssl_helper[%d] FAILED. %d\n", pid, n);
 		if (db) fprintf(stderr, "'%s'\n'%s'\n", cookie, rcookie);
 		close(vsock);
 
 		if (strstr(rcookie, uniq) == rcookie) {
 			int i;
-			rfbLog("SSL: BUT WAIT! HTTPS for helper process succeeded. Good.\n");
+			rfbLog("SSL: BUT WAIT! HTTPS for helper process[%d] succeeded. Good.\n", pid);
 			if (mode != OPENSSL_HTTPS) {
-				last_https = time(NULL);
+				last_https = dnow();
 				for (i=0; i<256; i++) {
 					last_get[i] = '\0';
 				}
@@ -2470,6 +2482,7 @@ void accept_openssl(int mode, int presock) {
 				double start;
 				int origport = screen->port;
 				int useport = screen->port;
+				int saw_httpsock = 0;
 				/* to expand $PORT correctly in index.vnc */
 				if (https_port_redir < 0) {
 					char *q = strstr(rcookie, "HP=");
@@ -2489,23 +2502,34 @@ void accept_openssl(int mode, int presock) {
 
 				start = dnow();
 				while (dnow() < start + 10.0) {
+					if (screen->httpSock >= 0) saw_httpsock = 1;
 					rfbPE(10000);
 					usleep(10000);
+					if (screen->httpSock >= 0) saw_httpsock = 1;
 					waitpid(pid, &status, WNOHANG); 
 					if (kill(pid, 0) != 0) {
 						rfbPE(10000);
 						rfbPE(10000);
 						break;
 					}
+					if (saw_httpsock && screen->httpSock < 0) {
+						rfbLog("SSL: httpSock for helper[%d] went away\n", pid);
+						rfbPE(10000);
+						rfbPE(10000);
+						break;
+					}
 				}
 				screen->port = origport;
-				rfbLog("SSL: guessing child https finished.\n");
+				rfbLog("SSL: guessing child helper[%d] https finished. dt=%.6f\n",
+				    pid, dnow() - start);
 				ssl_helper_pid(0, -2);
 				if (mode == OPENSSL_INETD) {
 					clean_up_exit(1);
 				}
 			} else if (mode == OPENSSL_INETD) {
 				double start;
+				int saw_httpsock = 0;
+
 				/* to expand $PORT correctly in index.vnc */
 				if (screen->port == 0) {
 					int fd = fileno(stdin);
@@ -2524,17 +2548,26 @@ void accept_openssl(int mode, int presock) {
 				/* kludge for https fetch via inetd */
 				start = dnow();
 				while (dnow() < start + 10.0) {
+					if (screen->httpSock >= 0) saw_httpsock = 1;
 					rfbPE(10000);
 					usleep(10000);
+					if (screen->httpSock >= 0) saw_httpsock = 1;
 					waitpid(pid, &status, WNOHANG); 
 					if (kill(pid, 0) != 0) {
 						rfbPE(10000);
 						rfbPE(10000);
 						break;
 					}
+					if (saw_httpsock && screen->httpSock < 0) {
+						rfbLog("SSL: httpSock for helper[%d] went away\n", pid);
+						rfbPE(10000);
+						rfbPE(10000);
+						break;
+					}
 				}
 				rfbLog("SSL: OPENSSL_INETD guessing "
-				    "child https finished.\n");
+				    "child helper[%d] https finished. dt=%.6f\n",
+				    pid, dnow() - start);
 				ssl_helper_pid(0, -2);
 				clean_up_exit(1);
 			}
@@ -2554,7 +2587,7 @@ void accept_openssl(int mode, int presock) {
 
 	if (db) fprintf(stderr, "accept_openssl: cookie good: %s\n", cookie);
 
-	rfbLog("SSL: handshake with helper process succeeded.\n");
+	rfbLog("SSL: handshake with helper process[%d] succeeded.\n", pid);
 
 	openssl_last_helper_pid = pid;
 	ssl_helper_pid(pid, vsock);
@@ -3006,8 +3039,8 @@ static int vencrypt_dialog(int s_in, int s_out) {
 	return 1;
 }
 
-static int check_vnc_tls_mode(int s_in, int s_out) {
-	double waited = 0.0, dt = 0.01, start = dnow();
+static int check_vnc_tls_mode(int s_in, int s_out, double last_https) {
+	double waited = 0.0, waitmax = 1.4, dt = 0.01, start = dnow();
 	struct timeval tv;
 	int input = 0, i, n, ok;
 	int major, minor, sectype = -1;
@@ -3038,7 +3071,20 @@ static int check_vnc_tls_mode(int s_in, int s_out) {
 		return 1;
 	}
 
-	while (waited < 1.1) {
+	if (last_https > 0.0) {
+		double now = dnow();
+		if (now < last_https + 5.0) {
+			waitmax = 20.0;
+		} else if (now < last_https + 15.0) {
+			waitmax = 10.0;
+		} else if (now < last_https + 30.0) {
+			waitmax = 5.0;
+		} else if (now < last_https + 60.0) {
+			waitmax = 2.5;
+		}
+	}
+
+	while (waited < waitmax) {
 		fd_set rfds;
 		FD_ZERO(&rfds);
 		FD_SET(s_in, &rfds);
@@ -3052,7 +3098,8 @@ static int check_vnc_tls_mode(int s_in, int s_out) {
 		usleep((int) (1000 * 1000 * dt));
 		waited += dt;
 	}
-	rfbLog("check_vnc_tls_mode: waited: %f input: %s\n", dnow() - start, input ? "SSL Handshake" : "(future) RFB Handshake");
+	rfbLog("check_vnc_tls_mode: waited: %f / %.2f input: %s\n",
+	    dnow() - start, waitmax, input ? "SSL Handshake" : "(future) RFB Handshake");
 
 	if (input) {
 		/* got SSL client hello, can only assume normal SSL */
@@ -3079,7 +3126,7 @@ static int check_vnc_tls_mode(int s_in, int s_out) {
 		int i;
 		rfbLog("check_vnc_tls_mode: abnormal handshake: '%s'\nbytes: ", buf);
 		for (i=0; i < 12; i++) {
-			fprintf(stderr, "%x.", (int) buf[i]);
+			fprintf(stderr, "%d.", (unsigned char) buf[i]);
 		}
 		fprintf(stderr, "\n");
 		close(s_in); close(s_out);
@@ -3197,7 +3244,7 @@ static void ssl_timeout (int sig) {
 	exit(1);
 }
 
-static int ssl_init(int s_in, int s_out, int skip_vnc_tls) {
+static int ssl_init(int s_in, int s_out, int skip_vnc_tls, double last_https) {
 	unsigned char *sid = (unsigned char *) "x11vnc SID";
 	char *name = NULL;
 	int peerport = 0;
@@ -3220,7 +3267,7 @@ static int ssl_init(int s_in, int s_out, int skip_vnc_tls) {
 	if (skip_vnc_tls) {
 		rfbLog("SSL: ssl_helper[%d]: HTTPS mode, skipping check_vnc_tls_mode()\n",
 		    getpid());
-	} else if (!check_vnc_tls_mode(s_in, s_out)) {
+	} else if (!check_vnc_tls_mode(s_in, s_out, last_https)) {
 		return 0;
 	}
 
@@ -3419,7 +3466,7 @@ static void ssl_xfer(int csock, int s_in, int s_out, int is_https) {
 	 * time), but we also want the timeout shorter at the beginning
 	 * in case the client went away.
 	 */
-	time_t start;
+	double start, now;
 	int tv_https_early = 60;
 	int tv_https_later = 20;
 	int tv_vnc_early = 40;
@@ -3442,13 +3489,14 @@ static void ssl_xfer(int csock, int s_in, int s_out, int is_https) {
 		}
 		return;
 	}
+
 	if (getenv("SSL_DEBUG")) {
 		db = atoi(getenv("SSL_DEBUG"));
 	}
 
 	if (db) fprintf(stderr, "ssl_xfer begin\n");
 
-	start = time(NULL);
+	start = dnow();
 	if (is_https) {
 		tv_use = tv_https_early;
 	} else {
@@ -3567,7 +3615,8 @@ static void ssl_xfer(int csock, int s_in, int s_out, int is_https) {
 			}
 		}
 
-		if (tv_cutover && time(NULL) > start + tv_cutover) {
+		now = dnow();
+		if (tv_cutover && now > start + tv_cutover) {
 			rfbLog("SSL: ssl_xfer[%d]: tv_cutover: %d\n", getpid(),
 			    tv_cutover);
 			tv_cutover = 0;
@@ -3589,6 +3638,7 @@ static void ssl_xfer(int csock, int s_in, int s_out, int is_https) {
 			closing = 1;
 			tv_use = tv_closing;
 		}
+
 		tv.tv_sec  = tv_use;
 		tv.tv_usec = 0;
 
@@ -3603,11 +3653,13 @@ static void ssl_xfer(int csock, int s_in, int s_out, int is_https) {
 
 		if (db > 1) fprintf(stderr, "nfd: %d\n", nfd);
 
+if (0) fprintf(stderr, "nfd[%d]: %d  w/r csock: %d %d s_in: %d %d\n", getpid(), nfd, FD_ISSET(csock, &wr), FD_ISSET(csock, &rd), FD_ISSET(s_out, &wr), FD_ISSET(s_in, &rd)); 
+
 		if (nfd < 0) {
 			rfbLog("SSL: ssl_xfer[%d]: select error: %d\n", getpid(), nfd);
 			perror("select");
 			/* connection finished */
-			return;	
+			goto done;	
 		}
 
 		if (nfd == 0) {
@@ -3623,7 +3675,7 @@ static void ssl_xfer(int csock, int s_in, int s_out, int is_https) {
 			rfbLog("SSL: ssl_xfer[%d]: connection timedout. %d  tv_use: %d\n",
 			    getpid(), ndata, tv_use);
 			/* connection finished */
-			return;
+			goto done;
 		}
 
 		/* used to see if SSL_pending() should be checked: */
@@ -3638,12 +3690,12 @@ static void ssl_xfer(int csock, int s_in, int s_out, int is_https) {
 			if (n < 0) {
 				if (errno != EINTR) {
 					/* connection finished */
-					return;
+					goto done;
 				}
 				/* proceed */
 			} else if (n == 0) {
 				/* connection finished XXX double check */
-				return;
+				goto done;
 			} else {
 				/* shift over the data in sbuf by n */
 				memmove(sbuf, sbuf + n, sptr - n);
@@ -3691,7 +3743,7 @@ static void ssl_xfer(int csock, int s_in, int s_out, int is_https) {
 				} else if (err == SSL_ERROR_SYSCALL) {
 					if (n < 0 && errno != EINTR) {
 						/* connection finished */
-						return;
+						goto done;
 					}
 					/* proceed */
 				} else if (err == SSL_ERROR_ZERO_RETURN) {
@@ -3700,7 +3752,7 @@ static void ssl_xfer(int csock, int s_in, int s_out, int is_https) {
 					s_wr = 0;
 				} else if (err == SSL_ERROR_SSL) {
 					/* connection finished */
-					return;
+					goto done;
 				}
 			}
 		}
@@ -3715,7 +3767,7 @@ static void ssl_xfer(int csock, int s_in, int s_out, int is_https) {
 			if (n < 0) {
 				if (errno != EINTR) {
 					/* connection finished */
-					return;
+					goto done;
 				}
 				/* proceed */
 			} else if (n == 0) {
@@ -3760,7 +3812,7 @@ static void ssl_xfer(int csock, int s_in, int s_out, int is_https) {
 					if (n < 0) {
 						if(errno != EINTR) {
 							/* connection finished */
-							return;
+							goto done;
 						}
 						/* proceed */
 					} else {
@@ -3783,11 +3835,19 @@ static void ssl_xfer(int csock, int s_in, int s_out, int is_https) {
 					}
 				} else if (err == SSL_ERROR_SSL) {
 					/* connection finished */
-					return;
+					goto done;
 				}
 			}
 		}
 	}
+
+	done:
+	rfbLog("SSL: ssl_xfer[%d]: closing sockets %d, %d, %d\n",
+			    getpid(), csock, s_in, s_out);
+	close(csock);
+	close(s_in);
+	close(s_out);
+	return;
 }
 
 void check_openssl(void) {

x11vnc/x11vnc.1

 .\" This file was automatically generated from x11vnc -help output.
-.TH X11VNC "1" "May 2009" "x11vnc " "User Commands"
+.TH X11VNC "1" "June 2009" "x11vnc " "User Commands"
 .SH NAME
 x11vnc - allow VNC connections to real X11 displays
-         version: 0.9.8, lastmod: 2009-05-18
+         version: 0.9.8, lastmod: 2009-06-14
 .SH SYNOPSIS
 .B x11vnc
 [OPTION]...
@@ -4632,6 +4632,11 @@ wireframing that gives much better response than opaque
 window dragging.  Consider the \fB-nodragging\fR option if
 the problem is severe.
 .IP
+The env. var. X11VNC_REFLECT_PASSWORD can be set to
+the password needed to log into the vnc host server, or
+to "file:path_to_file" to indicate a file containing
+the password as its first line.
+.IP
 The VNC HOST mode implies \fB-shared.\fR  Use \fB-noshared\fR as
 a subsequent cmdline option to disable sharing.
 .PP

x11vnc/x11vnc.c

@@ -4785,6 +4785,11 @@ if (0) fprintf(stderr, "XA: %s\n", getenv("XAUTHORITY"));
 	if (! quiet && xdamage_present && use_xdamage && ! raw_fb_str) {
 		rfbLog("X DAMAGE available on display, using it for polling hints.\n");
 		rfbLog("  To disable this behavior use: '-noxdamage'\n");
+		rfbLog("\n");
+		rfbLog("  Most compositing window managers like 'compiz' or 'beryl'\n");
+		rfbLog("  cause X DAMAGE to fail, and so you may not see any screen\n");
+		rfbLog("  updates via VNC.  Either disable 'compiz' (recommended) or\n");
+		rfbLog("  supply the x11vnc '-noxdamage' command line option.\n");
 	}
 
 	if (! quiet && wireframe && ! raw_fb_str) {

x11vnc/x11vnc_defs.c

@@ -47,7 +47,7 @@ int xtrap_base_event_type = 0;
 int xdamage_base_event_type = 0;
 
 /*               date +'lastmod: %Y-%m-%d' */
-char lastmod[] = "0.9.8 lastmod: 2009-05-18";
+char lastmod[] = "0.9.8 lastmod: 2009-06-14";
 
 /* X display info */