static void
stoppen( int force )
{
#ifdef XDMCP
request_port = 0;
UpdateListenSockets();
#endif
if (force)
ForEachDisplay( StopDisplay );
else
ForEachDisplay( StopInactiveDisplay );
Stopping = 1;
}
static void StopAll(int n)
{
int olderrno = errno;
if (parent_pid != getpid()) {
/*
* We are a child wdm process that was killed by the
* master wdm before we were able to return from fork()
* and remove this signal handler.
*
* See defect XWSog08655 for more information.
*/
WDMDebug("Child wdm caught SIGTERM before it remove that signal.\n");
(void)Signal(n, SIG_DFL);
TerminateProcess(getpid(), SIGTERM);
errno = olderrno;
return;
}
WDMDebug("Shutting down entire manager\n");
#ifdef XDMCP
DestroyWellKnownSockets();
#endif
ForEachDisplay(StopDisplay);
errno = olderrno;
}
static void RescanIfMod(void)
{
struct stat statb;
if (config && stat(config, &statb) != -1) {
if (statb.st_mtime != ConfigModTime) {
WDMDebug("Config file %s has changed, rereading\n", config);
WDMInfo("Rereading configuration file %s\n", config);
ConfigModTime = statb.st_mtime;
ReinitResources();
LoadDMResources();
}
}
if (servers[0] == '/' && stat(servers, &statb) != -1) {
if (statb.st_mtime != ServersModTime) {
WDMDebug("Servers file %s has changed, rescanning\n", servers);
WDMInfo("Rereading servers file %s\n", servers);
ServersModTime = statb.st_mtime;
ForEachDisplay(MarkDisplay);
ScanServers();
}
}
#ifdef XDMCP
if (accessFile && accessFile[0] && stat(accessFile, &statb) != -1) {
if (statb.st_mtime != AccessFileModTime) {
WDMDebug("Access file %s has changed, rereading\n", accessFile);
WDMInfo("Rereading access file %s\n", accessFile);
AccessFileModTime = statb.st_mtime;
ScanAccessDatabase();
}
}
#endif
}
/* ARGSUSED */
static void
StopAll (int n)
{
int olderrno = errno;
if (parent_pid != getpid())
{
/*
* We are a child xdm process that was killed by the
* master xdm before we were able to return from fork()
* and remove this signal handler.
*
* See defect XWSog08655 for more information.
*/
Debug ("Child xenodm caught SIGTERM before it removed that signal.\n");
(void) signal (n, SIG_DFL);
kill (getpid(), SIGTERM);
errno = olderrno;
return;
}
Debug ("Shutting down entire manager\n");
LogInfo ("Shutting down\n");
ForEachDisplay (StopDisplay);
errno = olderrno;
}
static void
RescanIfMod (void)
{
struct stat statb;
if (config && stat (config, &statb) != -1)
{
if (statb.st_mtime != ConfigModTime)
{
Debug ("Config file %s has changed, rereading\n", config);
LogInfo ("Rereading configuration file %s\n", config);
ConfigModTime = statb.st_mtime;
ReinitResources ();
LoadDMResources ();
}
}
if (servers[0] == '/' && stat(servers, &statb) != -1)
{
if (statb.st_mtime != ServersModTime)
{
Debug ("Servers file %s has changed, rescanning\n", servers);
LogInfo ("Rereading servers file %s\n", servers);
ServersModTime = statb.st_mtime;
ForEachDisplay (MarkDisplay);
ScanServers ();
}
}
}
/* ARGSUSED */
static SIGVAL
StopAll (int n)
{
int olderrno = errno;
if (parent_pid != getpid())
{
/*
* We are a child xdm process that was killed by the
* master xdm before we were able to return from fork()
* and remove this signal handler.
*
* See defect XWSog08655 for more information.
*/
Debug ("Child xdm caught SIGTERM before it removed that signal.\n");
(void) Signal (n, SIG_DFL);
TerminateProcess (getpid(), SIGTERM);
errno = olderrno;
return;
}
Debug ("Shutting down entire manager\n");
LogInfo ("Shutting down\n");
#ifdef XDMCP
DestroyWellKnownSockets ();
#endif
ForEachDisplay (StopDisplay);
#ifdef SIGNALS_RESET_WHEN_CAUGHT
/* to avoid another one from killing us unceremoniously */
(void) Signal (SIGTERM, StopAll);
(void) Signal (SIGINT, StopAll);
#endif
errno = olderrno;
}
static void
RescanServers (void)
{
Debug ("rescanning servers\n");
LogInfo ("Rescanning both config and servers files\n");
ForEachDisplay (MarkDisplay);
SetConfigFileTime ();
ReinitResources ();
LoadDMResources ();
ScanServers ();
StartDisplays ();
}
static void RescanServers(void)
{
WDMDebug("rescanning servers\n");
WDMInfo("Rescanning both config and servers files\n");
ForEachDisplay(MarkDisplay);
SetConfigFileTime();
ReinitResources();
LoadDMResources();
ScanServers();
SetAccessFileTime();
#ifdef XDMCP
ScanAccessDatabase();
#endif
StartDisplays();
}
static void
bombUtmp( void )
{
struct utmps *utp;
while ((utp = utmpList)) {
#ifdef HAVE_VTS
ForEachDisplay( WakeDisplay );
#else
utp->d->status = notRunning;
#endif
utmpList = utp->next;
free( utp );
}
}
static void StartDisplays(void)
{
ForEachDisplay(CheckDisplayStatus);
}
static void
CheckUtmp( void )
{
static time_t modtim;
time_t nck;
time_t ends;
struct utmps *utp, **utpp;
struct stat st;
#ifdef BSD_UTMP
int fd;
struct utmp ut[1];
#else
STRUCTUTMP *ut;
#endif
if (!utmpList)
return;
if (stat( UTMP_FILE, &st )) {
LogError( UTMP_FILE " not found - cannot use console mode\n" );
bombUtmp();
return;
}
if (modtim != st.st_mtime) {
Debug( "rescanning " UTMP_FILE "\n" );
for (utp = utmpList; utp; utp = utp->next)
utp->state = UtDead;
#ifdef BSD_UTMP
if ((fd = open( UTMP_FILE, O_RDONLY )) < 0) {
LogError( "Cannot open " UTMP_FILE " - cannot use console mode\n" );
bombUtmp();
return;
}
while (Reader( fd, ut, sizeof(ut[0]) ) == sizeof(ut[0]))
#else
SETUTENT();
while ((ut = GETUTENT()))
#endif
{
for (utp = utmpList; utp; utp = utp->next) {
#ifdef HAVE_VTS
char **line;
for (line = consoleTTYs; *line; line++)
if (!strncmp( *line, ut->ut_line, sizeof(ut->ut_line) ))
goto hitlin;
continue;
hitlin:
#else
if (strncmp( utp->d->console, ut->ut_line, sizeof(ut->ut_line) ))
continue;
#endif
#ifdef BSD_UTMP
if (!*ut->ut_user) {
#else
if (ut->ut_type != USER_PROCESS) {
#endif
#ifdef HAVE_VTS
if (utp->state == UtActive)
break;
#endif
utp->state = UtWait;
} else {
utp->hadSess = 1;
utp->state = UtActive;
}
if (utp->time < ut->ut_time) /* theoretically superfluous */
utp->time = ut->ut_time;
break;
}
}
#ifdef BSD_UTMP
close( fd );
#else
ENDUTENT();
#endif
modtim = st.st_mtime;
}
for (utpp = &utmpList; (utp = *utpp); ) {
if (utp->state != UtActive) {
if (utp->state == UtDead) /* shouldn't happen ... */
utp->time = 0;
ends = utp->time + (utp->hadSess ? TIME_RELOG : TIME_LOG);
if (ends <= now) {
#ifdef HAVE_VTS
ForEachDisplay( WakeDisplay );
Debug( "console login timed out\n" );
#else
utp->d->status = notRunning;
Debug( "console login for %s at %s timed out\n",
utp->d->name, utp->d->console );
#endif
*utpp = utp->next;
free( utp );
continue;
} else
nck = ends;
} else
nck = TIME_RELOG + now;
if (nck < utmpTimeout)
utmpTimeout = nck;
utpp = &(*utpp)->next;
}
}
static void
#ifdef HAVE_VTS
SwitchToTty( void )
#else
SwitchToTty( struct display *d )
#endif
{
struct utmps *utp;
#ifdef HAVE_VTS
int vt;
#endif
if (!(utp = Malloc( sizeof(*utp) ))) {
#ifdef HAVE_VTS
ForEachDisplay( WakeDisplay );
#else
d->status = notRunning;
#endif
return;
}
#ifndef HAVE_VTS
d->status = textMode;
utp->d = d;
#endif
utp->time = now;
utp->hadSess = 0;
utp->next = utmpList;
utmpList = utp;
CheckUtmp();
#ifdef HAVE_VTS
if ((vt = TTYtoVT( *consoleTTYs )))
activateVT( vt );
#endif
/* XXX output something useful here */
}
#ifdef HAVE_VTS
static void
StopToTTY( struct display *d )
{
if ((d->displayType & d_location) == dLocal)
switch (d->status) {
default:
rStopDisplay( d, DS_TEXTMODE | 0x100 );
case reserve:
case textMode:
break;
}
}
static void
CheckTTYMode( void )
{
struct display *d;
for (d = displays; d; d = d->next)
if (d->status == zombie)
return;
SwitchToTty();
}
#else
void
SwitchToX( struct display *d )
{
struct utmps *utp, **utpp;
for (utpp = &utmpList; (utp = *utpp); utpp = &(*utpp)->next)
if (utp->d == d) {
*utpp = utp->next;
free( utp );
d->status = notRunning;
return;
}
}
#endif
#ifdef XDMCP
static void
StartRemoteLogin( struct display *d )
{
char **argv;
int pid;
Debug( "StartRemoteLogin for %s\n", d->name );
/* HACK: omitting LoadDisplayResources( d ) here! */
switch (pid = Fork()) {
case 0:
argv = PrepServerArgv( d, d->serverArgsRemote );
if (!(argv = addStrArr( argv, "-once", 5 )) ||
!(argv = addStrArr( argv, "-query", 6 )) ||
!(argv = addStrArr( argv, d->remoteHost, -1 )))
exit( 1 );
Debug( "exec %\"[s\n", argv );
(void)execv( argv[0], argv );
LogError( "X server %\"s cannot be executed\n", argv[0] );
exit( 1 );
case -1:
LogError( "Forking X server for remote login failed: %m" );
d->status = notRunning;
return;
default:
break;
}
Debug( "X server forked, pid %d\n", pid );
d->serverPid = pid;
d->status = remoteLogin;
}