719 lines
18 KiB
C
719 lines
18 KiB
C
/*
|
||
* CDE - Common Desktop Environment
|
||
*
|
||
* Copyright (c) 1993-2012, The Open Group. All rights reserved.
|
||
*
|
||
* These libraries and programs are free software; you can
|
||
* redistribute them and/or modify them under the terms of the GNU
|
||
* Lesser General Public License as published by the Free Software
|
||
* Foundation; either version 2 of the License, or (at your option)
|
||
* any later version.
|
||
*
|
||
* These libraries and programs are distributed in the hope that
|
||
* they will be useful, but WITHOUT ANY WARRANTY; without even the
|
||
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
||
* PURPOSE. See the GNU Lesser General Public License for more
|
||
* details.
|
||
*
|
||
* You should have received a copy of the GNU Lesser General Public
|
||
* License along with these librararies and programs; if not, write
|
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
|
||
*/
|
||
/* $TOG: SmMain.c /main/18 1998/04/20 12:59:26 mgreess $ */
|
||
/* *
|
||
* (c) Copyright 1993, 1994 Hewlett-Packard Company *
|
||
* (c) Copyright 1993, 1994 International Business Machines Corp. *
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||
* (c) Copyright 1993, 1994 Sun Microsystems, Inc. *
|
||
* (c) Copyright 1993, 1994 Novell, Inc. *
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||
*/
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/*************************************<+>*************************************
|
||
*****************************************************************************
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||
**
|
||
** File: SmMain.c
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**
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||
** Project: HP DT Session Manager (dtsession)
|
||
**
|
||
** Description:
|
||
** -----------
|
||
** This is the controlling program for the session manager. It
|
||
** calls routines to start the BMS, initialize globals and handlers,
|
||
** and restore the correct session.
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||
**
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||
**
|
||
*******************************************************************
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||
** (c) Copyright Hewlett-Packard Company, 1990. All rights are
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||
** reserved. Copying or other reproduction of this program
|
||
** except for archival purposes is prohibited without prior
|
||
** written consent of Hewlett-Packard Company.
|
||
********************************************************************
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||
**
|
||
**
|
||
**
|
||
*****************************************************************************
|
||
*************************************<+>*************************************/
|
||
|
||
#include <stdio.h>
|
||
#include <locale.h>
|
||
#ifdef __osf__
|
||
#include <sys/access.h>
|
||
#endif
|
||
#include <X11/Intrinsic.h>
|
||
#include <X11/StringDefs.h>
|
||
|
||
#if defined (USE_X11SSEXT)
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||
#include <X11/extensions/scrnsaver.h>
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||
#endif /* USE_X11SSEXT */
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||
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||
#include <Xm/Xm.h>
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||
#include <Dt/UserMsg.h>
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||
#include <Dt/EnvControlP.h>
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||
#include <Dt/DtP.h>
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||
#include <Dt/Lock.h>
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||
#ifdef USE_XINERAMA
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||
#include <DtXinerama.h> /* JET - Xinerama support */
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||
#endif
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||
#include "Sm.h"
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||
#include "SmError.h"
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||
#include "SmGlobals.h"
|
||
#include "SmCommun.h"
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||
#include "SmRestore.h"
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||
#include "SmUI.h"
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||
#include "SrvPalette.h"
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||
#include "SmProtocol.h"
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#include "SmXSMP.h"
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||
|
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/*
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||
* Internal Functions
|
||
*/
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||
static void StopAll(int i);
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||
static int RegisterX11ScreenSaver(Display *display, int *ssEventType);
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||
|
||
/*
|
||
* Internal Defines
|
||
*/
|
||
#ifdef __hpux
|
||
#define SECURE_SYS_PATH "/.secure/etc/passwd"
|
||
#endif
|
||
#ifdef _AIX
|
||
#define SECURE_SYS_PATH "/etc/security/passwd"
|
||
#endif
|
||
#ifdef SVR4
|
||
#define SECURE_SYS_PATH "/etc/shadow"
|
||
#endif
|
||
#ifdef CSRG_BASED
|
||
#define SECURE_SYS_PATH "/etc/master.passwd"
|
||
#endif
|
||
|
||
|
||
|
||
/*************************************<->*************************************
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||
*
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||
* main (argc, argv)
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||
*
|
||
*
|
||
* Description:
|
||
* -----------
|
||
* Controls the startup and event dispatching of the session manager.
|
||
*
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||
*
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||
* Inputs:
|
||
* ------
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||
* argc = command line options
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||
* argv = number of command line options
|
||
*
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||
*
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||
* Outputs:
|
||
* -------
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||
*
|
||
*
|
||
* Comments:
|
||
* --------
|
||
*
|
||
*************************************<->***********************************/
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||
int
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||
main (int argc, char **argv)
|
||
{
|
||
int n, tmp;
|
||
Arg args[10];
|
||
XEvent next;
|
||
String tmpString;
|
||
XWindowAttributes windAtt;
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||
XPropertyEvent *pEvent = (XPropertyEvent *) &next;
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||
int status;
|
||
struct stat buf;
|
||
Display *srvDisplay;
|
||
struct sigaction stopvec;
|
||
char *lang;
|
||
|
||
#ifdef __osf__
|
||
|
||
# include <sys/sysinfo.h>
|
||
# include <sys/proc.h>
|
||
|
||
unsigned long op;
|
||
int buffer[2];
|
||
unsigned long nbytes = 1;
|
||
char* arg = 0;
|
||
unsigned long flag = 0;
|
||
|
||
int ssi_status;
|
||
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||
op = SSI_NVPAIRS;
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||
|
||
buffer[0] = SSIN_UACPROC;
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||
buffer[1] = UAC_NOPRINT;
|
||
# ifdef DEBUG_UAC
|
||
buffer[1] |= UAC_SIGBUS;
|
||
# endif
|
||
|
||
ssi_status = setsysinfo ( op, buffer, nbytes, arg, flag );
|
||
#endif
|
||
|
||
setlocale( LC_ALL, "" );
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||
XtSetLanguageProc( NULL, NULL, NULL );
|
||
|
||
smGD.smState = IN_PROCESS;
|
||
smGD.programName = strdup (argv[0]);
|
||
|
||
/* JET - By default, we always want to leave when SmExit() is called. */
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||
smGD.ExitComplete = True;
|
||
|
||
/*
|
||
* We report some errors before we call the DtInitialize procedure.
|
||
* The Dt initialize procedure sets this name. If we report
|
||
* an error via DtSimple error before this is set we see the message
|
||
* prepended with <unknown program name> in the error log.
|
||
*/
|
||
DtProgName = SM_RESOURCE_NAME ;
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||
|
||
#ifdef DEBUG
|
||
if(argc > 5)
|
||
{
|
||
int junk = 1;
|
||
while(junk)
|
||
{
|
||
junk = 1;
|
||
}
|
||
}
|
||
#endif /* DEBUG */
|
||
/*
|
||
* Set our effective gid to the real gid until we need it to be
|
||
* sys (during contention management)
|
||
*/
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||
smGD.runningGID = getgid();
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||
smGD.conMgmtGID = getegid();
|
||
|
||
/*
|
||
* Set uid up according to whether this is a secure system
|
||
* Secure systems need root priviledges to read the /etc/passwd file
|
||
*/
|
||
smGD.runningUID = getuid();
|
||
|
||
#ifdef linux /* linux always needs to be setup as secure */
|
||
|
||
/*
|
||
* Save the root priviledge to be restored when trying to unlock
|
||
*/
|
||
smGD.unLockUID = geteuid();
|
||
smGD.secureSystem = True;
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||
SM_SETEUID(smGD.runningUID);
|
||
|
||
#else
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||
|
||
# ifdef SECURE_SYS_PATH
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||
status = stat(SECURE_SYS_PATH, &buf);
|
||
# else
|
||
status = -1;
|
||
# endif
|
||
|
||
if(status == -1)
|
||
{
|
||
/*
|
||
* this is not a secure system - remove all suid priviledges
|
||
*/
|
||
smGD.unLockUID = smGD.runningUID;
|
||
smGD.secureSystem = False;
|
||
SM_SETESUID(smGD.runningUID);
|
||
}
|
||
else
|
||
{
|
||
/*
|
||
* Save the root priviledge to be restored when trying to unlock
|
||
*/
|
||
smGD.unLockUID = geteuid();
|
||
smGD.secureSystem = True;
|
||
SM_SETEUID(smGD.runningUID);
|
||
}
|
||
|
||
#endif /* linux */
|
||
|
||
/*
|
||
* Initialize LANG if it isn't defined.
|
||
*/
|
||
if ((lang = getenv ("LANG")) == NULL)
|
||
{
|
||
lang = XtMalloc (7);
|
||
(void) strcpy (lang, "LANG=C");
|
||
(void) putenv (lang);
|
||
}
|
||
|
||
#ifdef __hpux
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||
setresgid(-1, smGD.runningGID, -1);
|
||
#else /* _AIX or any other system */
|
||
#ifndef SVR4
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||
setregid(smGD.conMgmtGID, smGD.runningGID);
|
||
#else
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||
setgid(smGD.conMgmtGID);
|
||
setegid(smGD.runningGID);
|
||
#endif
|
||
#endif /* !hpux */
|
||
|
||
/*
|
||
* Set up POSIX sigaction structs
|
||
*/
|
||
|
||
/*
|
||
* Must set SIGPIPE to SIG_IGN so the process does not exit
|
||
* if a child terminates unexpectedly during an I/O operation
|
||
* that raises SIGPIPE. Note that before this process exec's
|
||
* any subprocesses, SIGPIPE must be set to SIG_DFL.
|
||
*/
|
||
sigemptyset(&stopvec.sa_mask);
|
||
stopvec.sa_flags = 0;
|
||
stopvec.sa_handler = SIG_IGN;
|
||
(void) sigaction(SIGPIPE, &stopvec, (struct sigaction *) NULL);
|
||
|
||
stopvec.sa_handler = StopAll;
|
||
sigemptyset(&stopvec.sa_mask);
|
||
stopvec.sa_flags = 0;
|
||
|
||
smGD.childvec.sa_handler = WaitChildDeath;
|
||
sigemptyset(&smGD.childvec.sa_mask);
|
||
smGD.childvec.sa_flags = 0;
|
||
|
||
smGD.defvec.sa_handler = SIG_DFL;
|
||
sigemptyset(&smGD.defvec.sa_mask);
|
||
smGD.defvec.sa_flags = 0;
|
||
|
||
smGD.appCon = 0;
|
||
smGD.display = 0;
|
||
|
||
/*
|
||
* This must be done before XtToolkitInitialize
|
||
* to set up the local environment
|
||
*/
|
||
_DtEnvControl(DT_ENV_SET);
|
||
_DtEnvControl(DT_ENV_SET_BIN);
|
||
|
||
/*
|
||
* Set up NLS error messages first
|
||
*/
|
||
InitNlsStrings();
|
||
|
||
/*
|
||
* Set the paths of where resources are to be restored from
|
||
*/
|
||
SetRestorePath(argc, argv);
|
||
|
||
/*
|
||
* The first thing that must happen is that resources must be restored
|
||
* so that my resources will be correct
|
||
*/
|
||
if(smGD.compatMode == False)
|
||
{
|
||
/*
|
||
* Load session resources.
|
||
*/
|
||
RestoreResources(False,
|
||
"-load",
|
||
"-system",
|
||
"-xdefaults",
|
||
smGD.resourcePath[0] != '\0' ? "-file" : NULL,
|
||
smGD.resourcePath,
|
||
NULL);
|
||
}
|
||
|
||
/*
|
||
* Set up to catch SIGTERM
|
||
*/
|
||
stopvec.sa_handler = StopAll;
|
||
sigemptyset(&stopvec.sa_mask);
|
||
stopvec.sa_flags = 0;
|
||
|
||
sigaction(SIGTERM, &stopvec, (struct sigaction *) NULL);
|
||
|
||
/*
|
||
* Now set up a communication with the toolkit
|
||
*
|
||
* Create one display connection for dtsession, and one for
|
||
* the color server. We cannot share a display connection since
|
||
* motif creates a display object for the color server's display during
|
||
* color server initialization. Since the color server is not yet
|
||
* operational, any dialogs (ie the dtsession logout confirmation
|
||
* dialogs) created on that display do not get the color server colors.
|
||
* The dtsession display object is created after color server
|
||
* initialization is complete.
|
||
*/
|
||
if (smGD.appCon == 0) {
|
||
/*
|
||
* The following code will have been initialized if the
|
||
* session creation code posted a dialog.
|
||
*/
|
||
XtToolkitInitialize();
|
||
smGD.appCon = XtCreateApplicationContext();
|
||
smGD.display = XtOpenDisplay(smGD.appCon, NULL, argv[0],
|
||
SM_RESOURCE_CLASS,
|
||
NULL, 0, &argc, argv);
|
||
}
|
||
|
||
srvDisplay = XtOpenDisplay(smGD.appCon, NULL, argv[0], SM_RESOURCE_CLASS,
|
||
NULL, 0, &argc, argv);
|
||
|
||
/*
|
||
* Initialize XSMP
|
||
*/
|
||
if (!InitXSMP (argv[0]))
|
||
SM_EXIT(-1);
|
||
|
||
/* Added the following check to exit in case of error RK 09.08.93 */
|
||
if(smGD.display == NULL)
|
||
{
|
||
PrintError(DtError, GETMESSAGE(4, 1, "Invalid display name - exiting."));
|
||
SM_EXIT(-1);
|
||
}
|
||
|
||
/*
|
||
* Lock out other session managers from running - if there is one
|
||
* running already - exit
|
||
*/
|
||
if(!_DtGetLock(smGD.display, SM_RUNNING_LOCK))
|
||
{
|
||
PrintError(DtError, GETMESSAGE(2, 2, "Another dtsession is currently running - exiting."));
|
||
SM_EXIT(-1);
|
||
}
|
||
|
||
/* JET - initialize for Xinerama, if present 4/12/2001 */
|
||
#ifdef USE_XINERAMA
|
||
smGD.DtXineramaInfo = _DtXineramaInit(smGD.display);
|
||
|
||
# ifdef DEBUG
|
||
if (smGD.DtXineramaInfo == NULL)
|
||
{ /* No xinerama, how... sad. */
|
||
fprintf(stderr, "### JET SmMain: Xinerama NOT available.\n");
|
||
}
|
||
else
|
||
{
|
||
fprintf(stderr, "### JET SmMain: Xinerama available, scrns = %d\n",
|
||
dpyinfo.DtXineramaInfo->numscreens);
|
||
}
|
||
# endif
|
||
|
||
#endif
|
||
|
||
|
||
/*
|
||
* Restore preferences
|
||
*/
|
||
if (smGD.resourcePath[0] != '\0')
|
||
{
|
||
RestorePreferences(smGD.resourcePath);
|
||
}
|
||
|
||
/*
|
||
* Start up the color server
|
||
*/
|
||
InitializeDtcolor(srvDisplay, smGD.sessionType);
|
||
|
||
/*
|
||
* AFTER the colors are set up - create the top level widget
|
||
* Set up a NULL WM_COMMAND property
|
||
*/
|
||
n = 0;
|
||
XtSetArg(args[n], XmNbackground,
|
||
XBlackPixel(smGD.display, XDefaultScreen(smGD.display))); n++;
|
||
XtSetArg(args[n], XmNmappedWhenManaged, False); n++;
|
||
XtSetArg (args[n], XmNwidth, 1); n++;
|
||
XtSetArg (args[n], XmNheight, 1); n++;
|
||
smGD.topLevelWid = XtAppCreateShell (SM_RESOURCE_NAME, SM_RESOURCE_CLASS,
|
||
applicationShellWidgetClass,
|
||
smGD.display, args, n);
|
||
XtRealizeWidget(smGD.topLevelWid);
|
||
|
||
/*
|
||
* Select to get the lock on timeout if the user requests it
|
||
* and if the server supports it. This must be done before
|
||
* InitSMGlobals() so smGD.lockOnTimeoutStatus is known.
|
||
*/
|
||
#if defined (USE_HPSSEXT)
|
||
#ifdef USE_HP_SPECIFIC_XLIB
|
||
tmp = XHPSSChangeNotify(smGD.display, &XaSmScreenSaveRet, 3);
|
||
#else /* USE_HP_SPECIFIC_XLIB */
|
||
tmp = -1;
|
||
#endif /* USE_HP_SPECIFIC_XLIB */
|
||
#elif defined (USE_X11SSEXT)
|
||
tmp = RegisterX11ScreenSaver(smGD.display, &smGD.ssEventType);
|
||
#else
|
||
tmp = -1;
|
||
#endif
|
||
|
||
if(tmp != 0)
|
||
{
|
||
smGD.lockOnTimeoutStatus = False;
|
||
XaSmScreenSaveRet = None;
|
||
#if defined (USE_X11SSEXT)
|
||
smGD.ssEventType = None;
|
||
#endif
|
||
}
|
||
else
|
||
{
|
||
smGD.lockOnTimeoutStatus = True;
|
||
}
|
||
|
||
InitSMGlobals();
|
||
|
||
/*
|
||
* Put the program into a wait state
|
||
*/
|
||
ShowWaitState(True);
|
||
|
||
InitErrorHandler();
|
||
|
||
/*
|
||
* Restore resources for lang/resolution independence
|
||
*/
|
||
if((smGD.resourcePath[0] != 0) || (smGD.compatMode == False))
|
||
{
|
||
RestoreIndependentResources();
|
||
}
|
||
|
||
/*
|
||
* Now restore the rest of the clients and the settings
|
||
*/
|
||
if((smGD.clientPath[0] != 0) && (smGD.compatMode == False))
|
||
{
|
||
if(RestoreState() == -1)
|
||
{
|
||
StartWM();
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if(smGD.compatMode == True)
|
||
{
|
||
/*
|
||
* dtstyle needs the DT_SESSION_STATE even in
|
||
* compatibility mode
|
||
*/
|
||
SetCompatState();
|
||
}
|
||
StartWM();
|
||
}
|
||
|
||
/*
|
||
* Run the user's startup script if there is one
|
||
*/
|
||
|
||
if(smGD.compatMode == False)
|
||
{
|
||
StartEtc(False); /* run sessionetc */
|
||
}
|
||
|
||
InitProtocol ();
|
||
|
||
/*
|
||
* If we are in compatibility mode - kill the parent and leave the
|
||
* child running so that the script exits
|
||
*/
|
||
if(smGD.compatMode == True)
|
||
{
|
||
KillParent();
|
||
}
|
||
|
||
/*
|
||
* Select for property notify on the top level window - so that
|
||
* when the style manager changes something - it is known
|
||
*/
|
||
XGetWindowAttributes(smGD.display, smGD.topLevelWindow, &windAtt);
|
||
XSelectInput(smGD.display, smGD.topLevelWindow,
|
||
windAtt.your_event_mask | PropertyChangeMask);
|
||
|
||
ShowWaitState(False);
|
||
|
||
/*
|
||
* Register for events
|
||
* - PropertyChange (maskable)
|
||
* - ClientMessage (non-maskable)
|
||
*/
|
||
XtAddEventHandler(smGD.topLevelWid,
|
||
PropertyChangeMask,
|
||
True, ProcessEvent, NULL);
|
||
|
||
smGD.smState = READY;
|
||
|
||
#ifdef __osf__
|
||
/* If we've just populated a new .dtprofile into the user's home
|
||
* directory, put up a popup dialog explaining the need to edit it
|
||
* to allow .login/.profile to work properly
|
||
*/
|
||
|
||
arg = getenv("DTNEWPROFILE");
|
||
if (arg)
|
||
WarnNewProfile();
|
||
#endif
|
||
|
||
while(1)
|
||
{
|
||
XtAppNextEvent(smGD.appCon, &next);
|
||
if (next.type != 0)
|
||
{
|
||
#if defined (USE_X11SSEXT)
|
||
if (next.type == smGD.ssEventType)
|
||
{
|
||
/*
|
||
* We should simply be calling XtDispatchEvent() but the toolkit
|
||
* doesn't seem to know how to dispatch a run-time generated
|
||
* event type.
|
||
*/
|
||
ProcessEvent(smGD.topLevelWid, NULL, &next, NULL);
|
||
}
|
||
else
|
||
{
|
||
XtDispatchEvent(&next);
|
||
}
|
||
#else
|
||
XtDispatchEvent(&next);
|
||
#endif
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
|
||
|
||
/*************************************<->*************************************
|
||
*
|
||
* StopAll
|
||
*
|
||
*
|
||
* Description:
|
||
* -----------
|
||
* Signal handler for SIGTERM. Causes dtsession to do a normal shutdown
|
||
* procedure without saving any state.
|
||
*
|
||
*
|
||
* Inputs:
|
||
* ------
|
||
* shutDown (state flag)
|
||
*
|
||
*
|
||
* Outputs:
|
||
* -------
|
||
*
|
||
*
|
||
* Comments:
|
||
* --------
|
||
*
|
||
* We want to be careful to ignore the TERM signal if we are already
|
||
* shutting down when it occurs.
|
||
*
|
||
*************************************<->***********************************/
|
||
|
||
static void
|
||
StopAll(int i)
|
||
{
|
||
ImmediateExit(-1, 0, True);
|
||
}
|
||
|
||
/*************************************<->*************************************
|
||
*
|
||
* RegisterX11ScreenSaver
|
||
*
|
||
*
|
||
* Description:
|
||
* -----------
|
||
* Register with X11 screen saver server extension for screen saver events.
|
||
*
|
||
* Inputs:
|
||
* ------
|
||
* display - display from XtOpenDisplay()
|
||
* pssEventType - pointer to buffer in which to return ss event type
|
||
*
|
||
* Outputs:
|
||
* -------
|
||
* pssEventType - (rc=0) screen saver event type, (rc!=0) undefined
|
||
*
|
||
* Returns:
|
||
* -------
|
||
* 0 - successfully registered for screen saver events
|
||
* other - failed to register for screen saver events
|
||
*
|
||
* Comments:
|
||
* --------
|
||
*
|
||
*************************************<->***********************************/
|
||
|
||
#if defined (USE_X11SSEXT)
|
||
static int
|
||
RegisterX11ScreenSaver(
|
||
Display *display,
|
||
int *pssEventType)
|
||
{
|
||
/*
|
||
* Register with X11 screen saver server extension.
|
||
*/
|
||
int result = -1;
|
||
int ssErrorBase;
|
||
int majorVersion;
|
||
int minorVersion;
|
||
int screen;
|
||
Window root;
|
||
XID xid;
|
||
Atom type;
|
||
|
||
if (XScreenSaverQueryExtension(display, pssEventType, &ssErrorBase) &&
|
||
XScreenSaverQueryVersion(display, &majorVersion, &minorVersion) &&
|
||
majorVersion == 1)
|
||
{
|
||
/*
|
||
* Server supports requested version of X11 screen saver extension.
|
||
*/
|
||
screen = DefaultScreen(display);
|
||
root = DefaultRootWindow(display);
|
||
|
||
XGrabServer(display);
|
||
if (!XScreenSaverGetRegistered(display, screen, &xid, &type))
|
||
{
|
||
/*
|
||
* No other clients registered with this server so register this one.
|
||
*/
|
||
XScreenSaverRegister(display, screen, XtWindow(smGD.topLevelWid), XA_WINDOW);
|
||
result = 0;
|
||
}
|
||
XUngrabServer(display);
|
||
|
||
if (result == 0)
|
||
{
|
||
XSetWindowAttributes attr;
|
||
|
||
/*
|
||
* Registration successful.
|
||
*/
|
||
XScreenSaverSelectInput(display, root,
|
||
ScreenSaverNotifyMask|ScreenSaverCycleMask);
|
||
|
||
/* Even though OverrideRedirect is the default attribute in this
|
||
* check, lets make sure it's set, and make sure only the
|
||
* CWOverrideRedirect attr is being looked at. The rest is
|
||
* just random garbage anyway, since it's allocated from the stack.
|
||
*/
|
||
attr.override_redirect = True;
|
||
XScreenSaverSetAttributes(display, root, 0, 0, 1, 1, 0, CopyFromParent,
|
||
CopyFromParent, CopyFromParent, CWOverrideRedirect, &attr);
|
||
}
|
||
}
|
||
return(result);
|
||
}
|
||
#endif /* USE_X11SSEXT */
|
||
|