x11vnc: -appshare mode for sharing an application windows instead of the

entire desktop. map port + 5500 in reverse connect.  Add id_cmd remote
control functions for id (and other) windows.  Allow zero port in SSL
reverse connections.  Adjust delays between multiple reverse connections;
X11VNC_REVERSE_SLEEP_MAX env var.  Add some missing mutex locks; add
INPUT_LOCK and threads_drop_input.  More safety in -threads mode for
new framebuffer change.  Fix some stderr leaking in -inetd mode.

1 files changed, 11 insertions, 1 deletions

diff --git a/x11vnc/xrandr.c b/x11vnc/xrandr.c
index 90b9ac4..1e4c3f5 100644
--- a/x11vnc/xrandr.c
+++ b/x11vnc/xrandr.c
@@ -143,6 +143,8 @@ static void handle_xrandr_change(int new_x, int new_y) {
 
 	RAWFB_RET_VOID
 
+	/* assumes no X_LOCK */
+
 	/* sanity check xrandr_mode */
 	if (! xrandr_mode) {
 		xrandr_mode = strdup("default");
@@ -184,6 +186,8 @@ int check_xrandr_event(char *msg) {
 
 	RAWFB_RET(0)
 
+	/* it is assumed that X_LOCK is on at this point. */
+
 	if (subwin) {
 		return handle_subwin_resize(msg);
 	}
@@ -235,8 +239,13 @@ int check_xrandr_event(char *msg) {
 
 		if (wdpy_x == rev->width && wdpy_y == rev->height &&
 		    xrandr_rotation == (int) rev->rotation) {
-		    rfbLog("check_xrandr_event: no change detected.\n");
+			rfbLog("check_xrandr_event: no change detected.\n");
 			do_change = 0;
+			if (! xrandr) {
+		    		rfbLog("check_xrandr_event: "
+				    "enabling full XRANDR trapping anyway.\n");
+				xrandr = 1;
+			}
 		} else {
 			do_change = 1;
 			if (! xrandr) {
@@ -256,6 +265,7 @@ int check_xrandr_event(char *msg) {
 		XRRUpdateConfiguration(&xev);
 
 		if (do_change) {
+			/* under do_change caller normally returns before its X_UNLOCK */
 			X_UNLOCK;
 			handle_xrandr_change(rev->width, rev->height);
 		}