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xtrace − trace communication between X11 client and server |
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xtrace [ options ] −s xtrace [ options ] −k |
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Xtrace fakes an X server and forwards all connections to a real X server, displaying the communication between clients in (well, thoretically) human readable form. |
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−s | −−stopwhendone (default) |
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Terminate when all forwarded clients have disconnected. |
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−k | −−keeprunning |
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If all clients disconnected, wait for new ones to connect. |
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−d name | −−display name |
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Forward connections to the X server specified by name instead of the one specified by the environment variable DISPLAY. |
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−D name | −−fakedisplay name |
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Fake display name instead of $FAKEDISPLAY or :9 respectively. |
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−f filename | −−authfile filename |
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Add an -f filename to the arguments for all calls to xauth to get the authentication tokens of the X server to connect to. |
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−F filename | −−newauthfile filename |
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Add an -f filename to the arguments for all calls to xauth to save the authentication tokens to connect to the faked X server. |
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−c | −−copyauthentication (default) |
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Copy the authentication tokens for the X server to connect to so that clients connecting to our fake server will use them. The commands run are roughly equivalent to: xauth add $FAKEDISPLAY . ‘xauth list $DISPLAY | awk ’$2=="MIT-MAGIC-COOKIE-1" {print $3}’‘ Not that only MIT-MAGIC-COOKIE-1 tokens are copied as xtrace does not yet support to change the authentication tokens so that XDM-AUTHORIZATION-1 would be possible. |
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−n | −−nocopyauthentication |
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Do not call xauth and do fiddle with authentication tokens but leave that to the user to handle. |
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−e | −−denyextensions |
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Modify all server replies to say there are no extensions available. (As xtrace does supports only BIG-REQUESTS, MIT-SHM, RENDER, RANDR and SHAPE anyway and calls all extended requests "unknown" and all replies to such requests "unexpected"). |
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−w | −−readwritedebug |
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Print how many bytes are read and/or written when. |
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−m count | −−maxklistlength count |
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Print only the first count many elements of all lists. |
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−i | −−interactive |
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Only sent requests from the client to the server after interactive confirmation. Confirmation is given by pressing enter or a number followed by enter via stdin. This can give funny results when multiple clients are tunneled. |
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DISPLAY |
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Without −−display the content of this variable is used to determine the server to connect to. (And without −n given to xauth to get the authentication tokens for this display.) |
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FAKEDISPLAY |
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Without −−fakedisplay the content of this variable is used to determine how to listen for clients. (And without −n given to xauth to set the authentication tokens for this display.) If neighter is given, xtrace will try :9 |
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XAUTHORITY |
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Without -n and without -f or -F your xauth program will most likely look into this variable for the file to get/save the authentication tokens from/into. If this is not set it will most likely use $HOME/.Xauthority. |
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Report bugs to <brlink@debian.org> or the Debian BTS. |
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xauth(1), x(7x), |
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Copyright © 2005 Bernhard R. Link |