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/* GDM - The Gnome Display Manager
* Copyright (C) 1998, 1999 Martin Kasper Petersen <mkp@mkp.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* This file contains the XDMCP chooser glue */
#include <config.h>
#include <gnome.h>
#include <stdio.h>
#include <stdlib.h>
#include <syslog.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <errno.h>
#include <X11/Xlib.h>
#include <X11/Xmd.h>
#include <X11/Xdmcp.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/utsname.h>
#include <fcntl.h>
#include "gdm.h"
static const gchar RCSid[]="$Id$";
gint ipending = 0;
GSList *indirect = NULL;
GSList *i2 = NULL;
/* Tunables */
extern gint GdmMaxIndirect; /* Maximum pending indirects, i.e. simultaneous choosing sessions */
extern gint GdmMaxIndirectWait; /* Maximum age before a pending session is removed from the list */
extern void gdm_debug (gchar *, ...);
static GdmIndirectDisplay *gdm_choose_indirect_alloc (struct in_addr *);
static GdmIndirectDisplay *gdm_choose_indirect_lookup (struct in_addr *);
static void gdm_choose_indirect_dispose (GdmIndirectDisplay *);
gboolean gdm_choose_socket_handler (GIOChannel *source, GIOCondition cond, gint fd);
gboolean
gdm_choose_socket_handler (GIOChannel *source, GIOCondition cond, gint fd)
{
gchar buf[PIPE_SIZE];
gint len;
if (cond != G_IO_IN)
return (TRUE);
g_io_channel_read (source, buf, PIPE_SIZE-1, &len);
buf[len-1] = '\0';
gdm_debug ("gdm_choose_socket_handler: Read `%s'", buf);
return (TRUE);
}
static GdmIndirectDisplay *
gdm_choose_indirect_alloc (struct in_addr *addr)
{
GdmIndirectDisplay *i;
if (!addr)
return (NULL);
i = g_new0 (GdmIndirectDisplay, 1);
if (!i)
return (NULL);
i->addr->s_addr = addr->s_addr;
i->dispnum = -1;
i->manager = NULL;
i->acctime = time (NULL);
indirect = g_slist_append (indirect, i);
ipending++;
gdm_debug ("gdm_choose_display_alloc: display=%s, pending=%d ",
inet_ntoa (*i->addr), ipending);
return (i);
}
static GdmIndirectDisplay *
gdm_choose_indirect_lookup (struct in_addr *addr)
{
GSList *ilist = indirect;
GdmIndirectDisplay *i;
while (ilist) {
i = (GdmIndirectDisplay *) ilist->data;
if (i && time (NULL) > i->acctime + GdmMaxIndirectWait) {
gdm_debug ("gdm_choose_indirect_check: Disposing stale INDIRECT query from %s",
inet_ntoa (*i->addr));
gdm_choose_indirect_dispose (i);
}
if (i && i->addr->s_addr == addr->s_addr)
return (i);
ilist = ilist->next;
}
gdm_debug ("gdm_choose_indirect_lookup: Host %s not found",
inet_ntoa (*addr));
return (NULL);
}
static void
gdm_choose_indirect_dispose (GdmIndirectDisplay *i)
{
gdm_debug ("gdm_choose_indirect_dispose: Disposing %s", inet_ntoa (*i->addr));
if (i->addr)
g_free (i->addr);
if (i->manager)
g_free (i->manager);
g_free (i);
ipending--;
}
/* EOF */
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