/*

 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the

 * "Software"), to deal in the Software without restriction, including

 * without limitation the rights to use, copy, modify, merge, publish,

 * distribute, and/or sell copies of the Software, and to permit persons

 * to whom the Software is furnished to do so, provided that the above

 * copyright notice(s) and this permission notice appear in all copies of

 * the Software and that both the above copyright notice(s) and this

 * permission notice appear in supporting documentation.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT

 * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR

 * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL

 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING

 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,

 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION

 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 *

 * Except as contained in this notice, the name of a copyright holder

 * shall not be used in advertising or otherwise to promote the sale, use

 * or other dealings in this Software without prior written authorization

 * of the copyright holder.

 *

 */

Solaris uses the gtk unlock dialog program originally written by 

Ximian & Wipro, in order to provide a dialog box that works with

the GNOME accessibility framework.   This was done as a fork of

the original xscreensaver because the maintainer would not allow

use of a toolkit in the lock dialog - he has since softened his

stance a bit, but this has not been presented to him to see if it

meets his requirements as spelled out at:

	http://www.jwz.org/xscreensaver/toolkits.html

This file contains changes to the existing xscreensaver source to

enable that - the lock dialog itself is contained in the separate

file sun-src/driver/lock-Gtk.c.

This file also contains changes to make the pam code in xscreensaver

act more like a correct pam client, allowing different interaction

models than just a single password for authentication.

diff -urp -x '*~' config.h.in config.h.in

--- config.h.in	2002-05-28 17:44:37.000000000 -0700

+++ config.h.in	2006-05-10 08:48:29.922847000 -0700

@@ -147,6 +147,10 @@

  */

 #undef HAVE_GTK2

+/*  Define this to build the external lock dialog

+ */

+#undef HAVE_XSCREENSAVER_LOCK

+

 /*  Define this if you have Gnome and want to build support for the 

     xscreensaver control panel in the Gnome Control Center (gnomecc).

     (This is needed only with Gtk 1.x.)

diff -urp -x '*~' configure.in configure.in

--- configure.in	2006-05-10 08:48:24.125209000 -0700

+++ configure.in	2006-05-10 08:48:29.922219000 -0700

@@ -1462,7 +1462,7 @@ if test "$enable_locking" = yes -a "$wit

   if test "$ac_cv_pam" = yes ; then

     have_pam=yes

     AC_DEFINE(HAVE_PAM)

-    PASSWD_LIBS="${PASSWD_LIBS} -lpam"

+    PASSWD_LIBS="${PASSWD_LIBS} -lcmd -lpam"

     # libpam typically requires dlopen and dlsym.  On FreeBSD,

     # those are in libc.  On Linux and Solaris, they're in libdl.

@@ -1943,11 +1943,16 @@ if test "$with_gtk" = yes; then

     pkg_check_version  gmodule-2.0  2.0.0

     pkg_check_version   libxml-2.0  2.4.6

     pkg_check_version libglade-2.0  1.99.0

+    pkg_check_version    gconf-2.0  2.6.1

+    pkg_check_version libloginhelper-1.0 1.0

     have_gtk="$ok"

     if test "$have_gtk" = yes; then

       have_gtk2=yes

       AC_DEFINE(HAVE_GTK2)

+#--- Begin SUNW addition

+      AC_DEFINE(HAVE_XSCREENSAVER_LOCK)

+#--- End SUNW addition

     else

       if test -n "$ac_gtk_version_string" ; then

         gtk2_halfassed="$ac_gtk_version_string"

@@ -3256,6 +3261,28 @@ if test "$have_gtk" = yes; then

   ALL_DEMO_PROGRAMS="$PREFERRED_DEMO_PROGRAM $ALL_DEMO_PROGRAMS"

 fi

+#--- Begin SUNW addition

+PREFERRED_LOCK_PROGRAM=

+ALL_LOCK_PROGRAMS=

+LOCK_PROGRAM=

+if test "$have_gtk2" = yes; then

+  PREFERRED_LOCK_PROGRAM=xscreensaver-lock-Gtk

+  ALL_LOCK_PROGRAMS="$PREFERRED_LOCK_PROGRAM $ALL_LOCK_PROGRAMS"

+  LOCK_PROGRAM=xscreensaver-lock

+fi

+

+if test -r driver/sunlogo.xpm ; then

+	XPM_LOGO_FILE=sunlogo.xpm

+	XPM_LOGO_NAME=sunlogo_xpm

+else

+	XPM_LOGO_FILE=../utils/images/logo-180.xpm

+	XPM_LOGO_NAME=logo_180_xpm

+fi

+

+AC_SUBST([XPM_LOGO_FILE])

+AC_SUBST([XPM_LOGO_NAME])

+

+#--- End SUNW addition

 if test "$have_kerberos" = yes; then

   PASSWD_SRCS="$PASSWD_SRCS \$(KERBEROS_SRCS)"

@@ -3387,6 +3414,11 @@ AC_SUBST(INCLUDES)

 AC_SUBST(PREFERRED_DEMO_PROGRAM)

 AC_SUBST(ALL_DEMO_PROGRAMS)

+#--- Begin SUNW addition

+AC_SUBST(PREFERRED_LOCK_PROGRAM)

+AC_SUBST(ALL_LOCK_PROGRAMS)

+AC_SUBST(LOCK_PROGRAM)

+#--- End SUNW addition

 AC_SUBST(SAVER_LIBS)

 AC_SUBST(MOTIF_LIBS)

 AC_SUBST(GTK_LIBS)

@@ -3855,7 +3887,8 @@ HACK_CONF_DIR=`echo "${HACK_CONF_DIR}" |

 # Sanity check the hackdir

-for bad_choice in xscreensaver xscreensaver-demo xscreensaver-command ; do

+# SUNW addition: added xscreensaver-lock to list on next line

+for bad_choice in xscreensaver xscreensaver-demo xscreensaver-command xscreensaver-lock ; do

   if test "${HACKDIR}" = "${bindir}/${bad_choice}" ; then

     echo ""

     AC_MSG_ERROR([\"--with-hackdir=${bindir}/${bad_choice}\" won't work.

diff -urp -x '*~' driver/Makefile.in driver/Makefile.in

--- driver/Makefile.in	2002-06-11 02:09:07.000000000 -0700

+++ driver/Makefile.in	2006-05-10 08:48:29.938067000 -0700

@@ -14,6 +14,7 @@ install_prefix	=

 prefix		= @prefix@

 exec_prefix	= @exec_prefix@

 bindir		= @bindir@

+libexecdir	= @libexecdir@

 mandir		= @mandir@

 man1dir		= $(mandir)/man1

 mansuffix	= 1

@@ -30,6 +31,7 @@ GNOME_PANELDIR	= @GNOME_PANELDIR@

 GLADE_DATADIR	= @GLADE_DATADIR@

 GNOME_BINDIR	= $(bindir)

 HACK_CONF_DIR	= @HACK_CONF_DIR@

+LOCK_DIR	= $(libexecdir)

 CC		= @CC@

 CFLAGS		= @CFLAGS@

@@ -39,6 +41,7 @@ INTL_DEFS	= -DLOCALEDIR=\"$(localedir)\"

 SUBP_DEFS	= $(DEFS) -DDEFAULT_PATH_PREFIX='"@HACKDIR@"'

 GTK_DEFS	= $(DEFS) -DDEFAULT_ICONDIR='"$(GLADE_DATADIR)"'

 CONF_DEFS	= -DHACK_CONFIGURATION_PATH='"$(HACK_CONF_DIR)"'

+LOCK_DEFS	= $(DEFS) -DLOCKDIR=\"$(LOCK_DIR)\"

 LIBS		= @LIBS@

 INTL_LIBS	= @INTLLIBS@

@@ -95,6 +98,8 @@ GTK_SRCS	= demo-Gtk.c demo-Gtk-conf.c \

 		  demo-Gtk-widgets.c demo-Gtk-support.c

 GTK_EXTRA_OBJS  = demo-Gtk-widgets.o demo-Gtk-support.o

 GTK_OBJS	= demo-Gtk.o demo-Gtk-conf.o @GTK_EXTRA_OBJS@

+GTK_LOCK_SRCS	= lock-Gtk.c remote.c

+GTK_LOCK_OBJS	= lock-Gtk.o remote.o

 PWENT_SRCS	= passwd-pwent.c

 PWENT_OBJS	= passwd-pwent.o

@@ -199,8 +204,8 @@ GETIMG_LIBS	= $(LIBS) $(X_LIBS) $(XPM_LI

 		  $(X_PRE_LIBS) -lXt -lX11 $(XMU_LIBS) -lXext $(X_EXTRA_LIBS)

 EXES		= xscreensaver xscreensaver-command xscreensaver-demo \

-		  xscreensaver-getimage

-EXES2		= @ALL_DEMO_PROGRAMS@

+		  xscreensaver-getimage @LOCK_PROGRAM@

+EXES2		= @ALL_DEMO_PROGRAMS@ @ALL_LOCK_PROGRAMS@

 SCRIPTS		= xscreensaver-getimage-file xscreensaver-getimage-video

 HDRS		= XScreenSaver_ad.h xscreensaver.h prefs.h remote.h \

@@ -222,7 +227,7 @@ VMSFILES	= compile_axp.com compile_decc.

 		  vms_axp.opt vms_axp_12.opt vms_decc.opt vms_decc_12.opt

 TARFILES	= $(EXTRAS) $(VMSFILES) $(SAVER_SRCS_1) \

-		  $(MOTIF_SRCS) $(GTK_SRCS) $(PWENT_SRCS) \

+		  $(MOTIF_SRCS) $(GTK_SRCS) $(GTK_LOCK_SRCS) $(PWENT_SRCS) \

 		  $(KERBEROS_SRCS) $(PAM_SRCS) $(LOCK_SRCS_1) $(DEMO_SRCS_1) \

 		  $(CMD_SRCS) $(GETIMG_SRCS_1) $(HDRS) $(SCRIPTS) \

 		  $(TEST_SRCS) $(MEN)

@@ -245,6 +250,9 @@ install-program: $(EXES)

 	@if [ ! -d $(install_prefix)$(bindir) ]; then			\

 	  $(INSTALL_DIRS) $(install_prefix)$(bindir) ;			\

 	 fi

+	@if [ -n "@LOCK_PROGRAM@" -a ! -d $(install_prefix)$(LOCK_DIR) ]; then \

+	  $(INSTALL_DIRS) $(install_prefix)$(LOCK_DIR) ; 		\

+	 fi

 	@inst="$(INSTALL_PROGRAM)" ;					\

 	if [ @NEED_SETUID@ = yes ]; then				\

 	   me=`PATH="$$PATH:/usr/ucb" whoami` ;				\

@@ -280,6 +288,12 @@ install-program: $(EXES)

 	  $(install_prefix)$(bindir)/xscreensaver-getimage ; \

 	$(INSTALL_PROGRAM) xscreensaver-getimage \

 	  $(install_prefix)$(bindir)/xscreensaver-getimage

+	@if [ -n "@LOCK_PROGRAM@" ]; then				     \

+	  echo $(INSTALL_PROGRAM) xscreensaver-lock \

+	    $(install_prefix)$(LOCK_DIR)/xscreensaver-lock ; \

+	   $(INSTALL_PROGRAM) xscreensaver-lock \

+	    $(install_prefix)$(LOCK_DIR)/xscreensaver-lock ; \

+	fi

 install-ad: XScreenSaver.ad

 	@if [ ! -d $(install_prefix)$(AD_DIR) ]; then			      \

@@ -767,13 +781,18 @@ $(SAVER_UTIL_OBJS):

 # How we build object files in this directory.

 .c.o:

-	$(CC) -c $(INCLUDES) $(DEFS)  $(CFLAGS) $(X_CFLAGS) $<

+	$(CC) -c $(INCLUDES) $(DEFS) $(INTL_DEFS) $(CFLAGS) $(X_CFLAGS) $<

 # subprocs takes an extra -D option.

 subprocs.o: subprocs.c

 	$(CC) -c $(INCLUDES) $(SUBP_DEFS) $(CFLAGS) $(X_CFLAGS) \

 	  $(srcdir)/subprocs.c

+# lock takes an extra -D option.

+lock.o:

+	$(CC) -c $(INCLUDES) $(LOCK_DEFS) $(CFLAGS) $(X_CFLAGS) \

+	  $(srcdir)/lock.c

+

 # demo-Gtk takes extra -D options, and an extra -I option.

 demo-Gtk.o: demo-Gtk.c

 	$(CC) -c $(INCLUDES) $(SUBP_DEFS) -I$(ICON_SRC) \

@@ -785,6 +804,14 @@ demo-Gtk-conf.o: demo-Gtk-conf.c

 	$(CC) -c $(INCLUDES) $(CONF_DEFS) $(GTK_DEFS) $(CFLAGS) $(X_CFLAGS) \

 	  $(srcdir)/demo-Gtk-conf.c

+# lock-Gtk takes extra -D and -I options.

+GTK_LOCK_LOGO_DEFS=-DXPM_LOGO_FILE=\"@XPM_LOGO_FILE@\" \

+		  -DXPM_LOGO_NAME=@XPM_LOGO_NAME@

+

+lock-Gtk.o: lock-Gtk.c

+	$(CC) -c $(INCLUDES) -I$(ICON_SRC) $(GTK_DEFS) \

+	  $(CFLAGS) $(X_CFLAGS) $(INTL_DEFS) $(GTK_LOCK_LOGO_DEFS) \

+	  $(srcdir)/lock-Gtk.c

 # How we build the default app-defaults file into the program.

 #

@@ -806,6 +833,15 @@ xscreensaver-demo: @PREFERRED_DEMO_PROGR

 	cp -p @PREFERRED_DEMO_PROGRAM@@EXEEXT@ $@@EXEEXT@

 #	$(INSTALL_PROGRAM) @PREFERRED_DEMO_PROGRAM@ $@

+xscreensaver-lock: @PREFERRED_LOCK_PROGRAM@

+	$(INSTALL_PROGRAM) @PREFERRED_LOCK_PROGRAM@ $@

+

+xscreensaver-lock-Gtk: $(GTK_LOCK_OBJS)

+	$(CC) $(LDFLAGS) -o $@ $(GTK_LOCK_OBJS) $(LIBS) $(X_LIBS) \

+	$(GTK_LIBS) $(XML_LIBS) $(X_PRE_LIBS) -lXt -lX11 \

+	$(XDPMS_LIBS) -lXext \

+	$(X_EXTRA_LIBS)

+

 xscreensaver-demo-Xm: $(DEMO_OBJS) $(MOTIF_OBJS)

 	$(CC) $(LDFLAGS) -o $@ $(DEMO_OBJS) $(MOTIF_OBJS) $(LIBS) $(X_LIBS) \

 	$(MOTIF_LIBS) $(INTL_LIBS) $(X_PRE_LIBS) -lXt -lX11 \

@@ -821,7 +857,7 @@ xscreensaver-getimage: $(GETIMG_OBJS)

 TEST_PASSWD_OBJS = test-passwd.o $(LOCK_OBJS_1) $(PASSWD_OBJS) \

-	 subprocs.o setuid.o splash.o prefs.o \

+	 subprocs.o setuid.o splash.o prefs.o exec.o stderr.o \

 	$(SAVER_UTIL_OBJS)

 test-passwd.o: XScreenSaver_ad.h

diff -urp -x '*~' driver/dpms.c driver/dpms.c

--- driver/dpms.c	2001-03-22 10:10:53.000000000 -0800

+++ driver/dpms.c	2006-05-10 08:48:29.971953000 -0700

@@ -16,6 +16,7 @@

 #include <stdio.h>

 #include <X11/Xlib.h>

+# include <X11/Intrinsic.h>

 #ifdef HAVE_DPMS_EXTENSION

diff -urp -x '*~' driver/lock.c driver/lock.c

--- driver/lock.c	2002-03-05 18:15:03.000000000 -0800

+++ driver/lock.c	2006-05-10 08:48:29.981598000 -0700

@@ -21,6 +21,8 @@

 #include <X11/Xos.h>		/* for time() */

 #include <time.h>

 #include <sys/time.h>

+#include <errno.h>

+#include <signal.h>

 #include "xscreensaver.h"

 #include "resources.h"

@@ -68,281 +70,428 @@ vms_passwd_valid_p(char *pw, Bool verbos

 # define passwd_valid_p vms_passwd_valid_p

 #endif /* VMS */

+ 

+extern void await_dying_children (saver_info *si);

+void hack_uid (saver_info *si);

+Bool g_passwd_dialog_created = 0;

 #undef MAX

 #define MAX(a,b) ((a)>(b)?(a):(b))

 enum passwd_state { pw_read, pw_ok, pw_null, pw_fail, pw_cancel, pw_time };

-struct passwd_dialog_data {

-  saver_screen_info *prompt_screen;

-  int previous_mouse_x, previous_mouse_y;

-  enum passwd_state state;

-  char typed_passwd [80];

-  XtIntervalId timer;

-  int i_beam;

-

-  float ratio;

-  Position x, y;

-  Dimension width;

-  Dimension height;

-  Dimension border_width;

-

-  char *heading_label;

-  char *body_label;

-  char *user_label;

-  char *passwd_label;

-  char *date_label;

-  char *user_string;

-  char *passwd_string;

-

-  XFontStruct *heading_font;

-  XFontStruct *body_font;

-  XFontStruct *label_font;

-  XFontStruct *passwd_font;

-  XFontStruct *date_font;

-

-  Pixel foreground;

-  Pixel background;

-  Pixel passwd_foreground;

-  Pixel passwd_background;

-  Pixel thermo_foreground;

-  Pixel thermo_background;

-  Pixel shadow_top;

-  Pixel shadow_bottom;

-

-  Dimension logo_width;

-  Dimension logo_height;

-  Dimension thermo_width;

-  Dimension internal_border;

-  Dimension shadow_width;

-

-  Dimension passwd_field_x, passwd_field_y;

-  Dimension passwd_field_width, passwd_field_height;

-

-  Dimension thermo_field_x, thermo_field_y;

-  Dimension thermo_field_height;

-

-  Pixmap logo_pixmap;

-  int logo_npixels;

-  unsigned long *logo_pixels;

-  Pixmap save_under;

-};

+

+

+

+

+

+static void make_window (saver_info *si, enum window_type w_type);

 static void draw_passwd_window (saver_info *si);

-static void update_passwd_window (saver_info *si, const char *printed_passwd,

+void update_passwd_window (saver_info *si, const char *printed_passwd,

 				  float ratio);

-static void destroy_passwd_window (saver_info *si);

+void destroy_passwd_window (saver_info *si);

 static void undo_vp_motion (saver_info *si);

+extern Atom XA_UNLOCK_RATIO;

-static void

+#if defined (HAVE_XF86VMODE) || defined (HAVE_XSCREENSAVER_LOCK)

+static Bool vp_got_error = False;

+

+static int

+ignore_all_errors_ehandler (Display *dpy, XErrorEvent *error)

+{

+  vp_got_error = True;

+  return 0;

+}

+#endif /* defined (HAVE_XF86VMODE) || defined (HAVE_XSCREENSAVER_LOCK) */

+

+#ifdef HAVE_XSCREENSAVER_LOCK

+

+int

+write_to_child (saver_info* si, char* msg)

+{

+      if (si->external_passwd && g_passwd_dialog_created && si->pw_data->stdin_fd != -1)

+	{

+	  ssize_t len;

+	  char *nlmsg;

+

+	  nlmsg = (char *)malloc (strlen (msg) + 2);

+	  sprintf (nlmsg, "%s\n", msg);

+

+	  if (si->prefs.verbose_p)

+	    {

+              fprintf (stderr, "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");

+              fprintf (stderr, "HAVE_SCRSVR_LOCK message is:%s writing to fd:%d\n",

+	                 	   msg, si->pw_data->stdin_fd);

+              fprintf (stderr, "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");

+	    }

+

+	write_msg:

+	  len = write (si->pw_data->stdin_fd, nlmsg, strlen (nlmsg));

+	  if (len < 0 && errno == EINTR)

+	    goto write_msg;

+

+	  free (nlmsg);	  

+          return (1);

+	}

+      return (0); /* if we didnt write anything return 0*/

+}

+

+static int

+sane_dup2 (int fd1, int fd2)

+{

+  int ret;

+

+ retry:

+  ret = dup2 (fd1, fd2);

+  if (ret < 0 && errno == EINTR)

+    goto retry;

+

+  return ret;

+}

+

+static int

+close_and_invalidate (int *fd)

+{

+  int ret;

+

+  ret = close (*fd);

+  *fd = -1;

+

+  return ret;

+}

+

+void

+handle_passwd_input (XtPointer data, int *fd, XtInputId *id)

+{

+  saver_info *si = (saver_info *)data;

+  saver_preferences *p = &si->prefs;

+  char buffer[1024];

+  char *s;

+

+  if (si->prefs.verbose_p)

+    fprintf (stderr, "passwd input handler() fd=%d\n",*fd);

+

+  s = fgets (buffer, sizeof (buffer), si->pw_data->input_file);

+  if (!s)

+    {

+      if (si->prefs.verbose_p)

+	{

+	  fprintf (stderr, "done reading...\n");

+	  fprintf (stderr, "removing input handler...\n");

+	}

+      XtRemoveInput (*id);

+      si->pw_data->stdout_input_id = 0;

+

+      if (si->pw_data->state == pw_read)

+	si->pw_data->state = pw_null;

+

+      if (si->prefs.verbose_p)

+        fprintf (stderr, "passwd input handler() returning...done reading\n");

+ 

+      return;

+    }

+

+  if (si->pw_data->got_windowid)

+    {

+      char *nl;

+      if (si->prefs.verbose_p)

+	fprintf (stderr, "got a password\n");

+      nl = strchr (s, '\n');

+      if (nl)

+	*nl = '\0';

+      si->pw_data->passwd_string = strdup (s);

+      if (si->prefs.verbose_p)

+        fprintf(stderr,"Dude got password and saving it in passwd_string:%s\n", s);

+

+     /* We want to send null to lock dialog to say we are working on authentication*/

+     si->pw_data->state = pw_null;

+    }

+  else /* Get the window id of lock dialog from Child ***/

+    {

+      Window window = strtoul (s, NULL, 0);

+      /* FIXME: what to revert to? */

+      XSetInputFocus (si->dpy, window, RevertToParent, CurrentTime);

+      XSync (si->dpy, False);

+      si->pw_data->got_windowid = True;

+      si->passwd_dialog = window;

+      /**g_passwd_dialog_created = True;**/ /*set global flag to check in timers.c*/

+      if (si->prefs.verbose_p)

+	fprintf (stderr, "<---handle_passwd_input(): gotwindowid:0x%x\n", passwd_win);

+    }

+}

+

+/* returns successful fork/exec */

+Bool

+spawn_external_passwd_process (saver_info *si, passwd_dialog_data *pw)

+{

+  saver_preferences *p = &si->prefs;

+  pid_t forked;

+  const char *command = LOCKDIR "/xscreensaver-lock";

+  int stdin_pipe[2]  = { -1, -1 };

+  int stdout_pipe[2] = { -1, -1 };