I've got a system that is logging the message "SetPerClientControls
failed". The relevant code snippet is from
xc/programs/xdm/greeter/greet.c:
#ifdef XKB
{
int opcode, evbase, errbase, majret, minret;
unsigned int value = XkbPCF_GrabsUseXKBStateMask;
if (XkbQueryExtension (dpy, &opcode, &evbase, &errbase, &majret, &minret)) {
if (!XkbSetPerClientControls (dpy, XkbPCF_GrabsUseXKBStateMask, &value))
LogError ("%s\n", "SetPerClientControls failed");
}
}
#endif
The system behaves properly, as far as I can tell, other than logging
this message when XDM starts (or restarts after a user logs out). But
I'm a bit curious about what's happening here. What is the purpose of
the XkbPCF_GrabsUseXKBStateMask? Is this a security risk that I'm
failing to set that flag? (I'm worried since this is pretty close to
the place where the user is authenticated, and I don't want passwords
being grabbed.)
CC's to me appreciated, though not required.
Damian Menscher
--
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