On Wed, 2004-03-24 at 03:52, dave giffin wrote: > I need to be able to tell which process a given window > was created by. (Window ID=>Process ID)
On the server side, in os/access.c, is a function LocalClientCred() that you can use to get the UID and GID of a local client. This function could be extended to return the PID as well since the structure returned by the SO_PEERCRED sockopt has the PID in it. Take a look at it; there's already a bunch of _XTrans stuff dealing with this sort of thing. --Eamon > > Apparently, X servers don't know which process a > client is, they just get a socket (b/c of X's network > transparency). > > It has been suggested that I could run a program like > netstat on the client machine(which in my case is the > same machine running the server) to get a list of > which sockets belong to which processes. > > Then, I need to get the ID of the foreign socket > (socket ID on client end) from which a window was > created. > > What would work well is if the socket ID and the > client/window ID could be written to STDOUT or STDIN > when the window is created. Then I can have a script > read the server's STDOUT or STDIN and compare it to > the list of socket IDs and process IDs from netstat on > the client machine (which for my purposes is on the > same machine as the server). > > MY PROBLEM: I don't know how to get XFree86 to write > the socket ID and client ID when a window is created! > > Today, I was looking at the XFree86(4.3.0) source code > for the first time and trying some different hacks to > get the info I wanted to print. > > In xc/programs/Xserver/dix/dispatch.c, I found > ProcCreateWindow and the ClientPtr structure. I was > able to get X to print client->index and > client->OsPrivate->fd when a new window was created. > > Which is what I want, except that the client index > that is printed is always 2 and the socket ID is > always 13. 13 is the ID of the socket that X listens > on and I think 2 is the server client? > > What am I doing wrong? > > How can I print the Window ID and foreign/from socket > ID of a client when a window is created? > > > :) thanx > > PS: I'm thinking of making a sourceforge project to > publish the XFree86 modification and some associated > scripts so that others will be able to see which > process created which window. How does the project > name XTracer sound? > > __________________________________ > Do you Yahoo!? > Yahoo! Finance Tax Center - File online. File on time. > http://taxes.yahoo.com/filing.html > _______________________________________________ > Devel mailing list > [EMAIL PROTECTED] > http://XFree86.Org/mailman/listinfo/devel _______________________________________________ Devel mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/devel
