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os: XDMCP options like -query etc. should imply -listen tcp 

In X server 1.17, the default configuration is now -nolisten tcp.  In this
configuration, XDMCP options don't work usefully, as the X server is not
listening on the port for the display that it tells the display manager to
connect to.

Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
(cherry picked from commit 491cf02e19)
This commit is contained in:
Jon TURNEY 2015-02-10 14:37:26 +00:00 committed by Adam Jackson
parent 74ab42c85b
commit 44930264eb
1 changed files with 17 additions and 0 deletions
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17
os/xdmcp.c
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@ -48,6 +48,11 @@
#include <netdir.h>
#endif
#define XSERV_t
#define TRANS_SERVER
#define TRANS_REOPEN
#include <X11/Xtrans/Xtrans.h>
#ifdef XDMCP
#undef REQUEST
@ -242,6 +247,14 @@ XdmcpUseMsg(void)
ErrorF("-displayID display-id manufacturer display ID for request\n");
}
static void
XdmcpDefaultListen(void)
{
/* Even when configured --disable-listen-tcp, we should listen on tcp in
XDMCP modes */
_XSERVTransListen("tcp");
}
int
XdmcpOptions(int argc, char **argv, int i)
{
@ -249,11 +262,13 @@ XdmcpOptions(int argc, char **argv, int i)
get_manager_by_name(argc, argv, i++);
XDM_INIT_STATE = XDM_QUERY;
AccessUsingXdmcp();
XdmcpDefaultListen();
return i + 1;
}
if (strcmp(argv[i], "-broadcast") == 0) {
XDM_INIT_STATE = XDM_BROADCAST;
AccessUsingXdmcp();
XdmcpDefaultListen();
return i + 1;
}
#if defined(IPv6) && defined(AF_INET6)
@ -261,6 +276,7 @@ XdmcpOptions(int argc, char **argv, int i)
i = get_mcast_options(argc, argv, ++i);
XDM_INIT_STATE = XDM_MULTICAST;
AccessUsingXdmcp();
XdmcpDefaultListen();
return i + 1;
}
#endif
@ -268,6 +284,7 @@ XdmcpOptions(int argc, char **argv, int i)
get_manager_by_name(argc, argv, i++);
XDM_INIT_STATE = XDM_INDIRECT;
AccessUsingXdmcp();
XdmcpDefaultListen();
return i + 1;
}
if (strcmp(argv[i], "-port") == 0) {