XAddHost(3X11) BSD XAddHost(3X11)
NAME
XAddHost, XAddHosts, XListHosts, XRemoveHost, XRemoveHosts,
XSetAccessControl, XEnableAccessControl, XDisableAccessContro - control
host access
SYNTAX
XAddHost(display, host)
Display *display;
XHostAddress *host;
XAddHosts(display, hosts, num_hosts)
Display *display;
XHostAddress *hosts;
int num_hosts;
XHostAddress *XListHosts(display, nhosts_return, state_return)
Display *display;
int *nhosts_return;
Bool *state_return;
XRemoveHost(display, host)
Display *display;
XHostAddress *host;
XRemoveHosts(display, hosts, num_hosts)
Display *display;
XHostAddress *hosts;
int num_hosts;
XSetAccessControl(display, mode)
Display *display;
int mode;
XEnableAccessControl(display)
Display *display;
XDisableAccessControl(display)
Display *display;
ARGUMENTS
display Specifies the connection to the X server.
host Specifies the host that is to be added or removed.
hosts Specifies each host that is to be added or removed.
mode Specifies the mode. You can pass EnableAccess or
DisableAccess.
nhosts_return
Returns the number of hosts currently in the access control
list.
num_hosts Specifies the number of hosts.
state_return
Returns the state of the access control.
DESCRIPTION
The XAddHost function adds the specified host to the access control list
for that display. The server must be on the same host as the client
issuing the command, or a BadAccess error results.
XAddHost can generate BadAccess and BadValue errors.
The XAddHosts function adds each specified host to the access control
list for that display. The server must be on the same host as the client
issuing the command, or a BadAccess error results.
XAddHosts can generate BadAccess and BadValue errors.
The XListHosts function returns the current access control list as well
as whether the use of the list at connection setup was enabled or
disabled. XListHosts allows a program to find out what machines can make
connections. It also returns a pointer to a list of host structures that
were allocated by the function. When no longer needed, this memory should
be freed by calling XFree.
The XRemoveHost function removes the specified host from the access
control list for that display. The server must be on the same host as
the client process, or a BadAccess error results. If you remove your
machine from the access list, you can no longer connect to that server,
and this operation cannot be reversed unless you reset the server.
XRemoveHost can generate BadAccess and BadValue errors.
The XRemoveHosts function removes each specified host from the access
control list for that display. The X server must be on the same host as
the client process, or a BadAccess error results. If you remove your
machine from the access list, you can no longer connect to that server,
and this operation cannot be reversed unless you reset the server.
XRemoveHosts can generate BadAccess and BadValue errors.
The XSetAccessControl function either enables or disables the use of the
access control list at each connection setup.
XSetAccessControl can generate
BadAccess and BadValue errors.
The XEnableAccessControl function enables the use of the access control
list at each connection setup.
XEnableAccessControl can generate a BadAccess error.
The XDisableAccessControl function disables the use of the access control
list at each connection setup.
XDisableAccessControl can generate a BadAccess error.
DIAGNOSTICS
BadAccess A client attempted to modify the access control list from other
than the local (or otherwise authorized) host.
BadValue Some numeric value falls outside the range of values accepted
by the request. Unless a specific range is specified for an
argument, the full range defined by the argument's type is
accepted. Any argument defined as a set of alternatives can
generate this error.
SEE ALSO
Xlib - C Language X Interface