Check for tsak presence on lock engage

Fix tsak not exiting on request
Clean up build warnings

kdesktop/lock/lockprocess.cc

@@ -1635,6 +1635,18 @@ bool LockProcess::checkPass()
         if (trinity_desktop_lock_closing_windows)
             return 0;
 
+        if (trinity_desktop_lock_use_sak) {
+            // Verify SAK operational status
+            KProcess* checkSAKProcess = new KProcess;
+            *checkSAKProcess << "tdmtsak" << "check";
+            checkSAKProcess->start(KProcess::Block, KProcess::NoCommunication);
+            int retcode = checkSAKProcess->exitStatus();
+            delete checkSAKProcess;
+            if (retcode != 0) {
+                trinity_desktop_lock_use_sak = false;
+            }
+        }
+
         if (trinity_desktop_lock_use_sak) {
             // Wait for SAK press before continuing...
             SAKDlg inDlg( this );

tdmlib/kgreet_pam.cpp

@@ -354,7 +354,6 @@ KPamGreeter::textPrompt( const char *prompt, bool echo, bool nonBlocking )
         }
         else if (m_themer) {
             kg_debug("themer found!");
-	    KdmItem *pw_label = 0;
 
             KdmLabel *tdmlabel = static_cast<KdmLabel*>(m_themer->findNode("pw-label"));
             if (tdmlabel) {

tdmlib/kgreet_winbind.cpp

@@ -607,14 +607,14 @@ KWinbindGreeter::slotEndDomainList()
 
     TQString current = domainCombo->currentText();
 
-    for (int i = 0; i < domainList.count(); ++i) {
+    for (unsigned int i = 0; i < domainList.count(); ++i) {
-        if (i < domainCombo->count())
+        if (i < (uint)domainCombo->count())
             domainCombo->changeItem(domainList[i], i);
         else
             domainCombo->insertItem(domainList[i], i);
     }
 
-    while (domainCombo->count() > domainList.count())
+    while ((uint)domainCombo->count() > domainList.count())
         domainCombo->removeItem(domainCombo->count()-1);
 
     domainCombo->setCurrentItem( current );

tdmlib/tdmtsak.cpp

@@ -121,10 +121,14 @@ int main (int argc, char *argv[])
 	int verifier_result = tde_sak_verify_calling_process();
 
 	bool isdm = false;
+	bool checkonly = false;
 	if (argc == 2) {
 		if (strcmp(argv[1], "dm") == 0) {
 			isdm = true;
 		}
+		if (strcmp(argv[1], "check") == 0) {
+			checkonly = true;
+		}
 	}
 
 	if (!isdm) {
@@ -139,6 +143,14 @@ int main (int argc, char *argv[])
 			// OK, the calling process is authorized to retrieve SAK data
 			// First, flush the buffer
 			mPipe_fd = open(FIFO_FILE, O_RDONLY | O_NONBLOCK);
+			if (checkonly) {
+				if (mPipe_fd < 0) {
+					return 6;	// SAK not available
+				}
+				else {
+					return 0;
+				}
+			}
 			numread = 1;
 			while (numread > 0) {
 				numread = read(mPipe_fd, readbuf, 6);
@@ -177,4 +189,4 @@ int main (int argc, char *argv[])
 	else {
 		return verifier_result;
 	}
-}
+}

tsak/main.cpp

@@ -108,7 +108,6 @@ void signal_callback_handler(int signum)
 {
 	// Terminate program
 	throw exit_exception(signum);
-	exit(signum);
 }
 
 /*  termination handler */
@@ -395,7 +394,7 @@ int main (int argc, char *argv[])
 	struct input_event event;
 	struct input_event revev;
 	struct uinput_user_dev devinfo={{0},{0}};
-	int devout[MAX_KEYBOARDS], rd, i, value, size = sizeof (struct input_event);
+	int devout[MAX_KEYBOARDS], rd, i, size = sizeof (struct input_event);
 	char name[256] = "Unknown";
 	bool ctrl_down = false;
 	bool alt_down = false;
@@ -579,8 +578,6 @@ int main (int argc, char *argv[])
 										}
 									}
 
-									value = ev[0].value;
-
 									if (ev[0].value == 0 && ev[0].type == 1) { // Read the key release event
 										if (keycode[(ev[0].code)]) {
 											if (strcmp(keycode[(ev[0].code)], "<control>") == 0) ctrl_down = false;
@@ -713,7 +710,7 @@ int main (int argc, char *argv[])
 		}
 	}
 	catch(exit_exception& e) {
-		exit(e.c);
+		tsak_friendly_termination();
 	}
 
 	return 6;