Signal thread not calles thread_up() and thus do_setuid() so is no longer

running as root.  Signal thread also now writes the PID file so there's no
incorrect PIDs in the PID file on Linux.

Signals should work correctly in Linux (Finally!)

src/sbbs3/sbbscon.c

@@ -781,6 +781,19 @@ static void handle_sigs(void)  {
 	int		sig;
 	sigset_t			sigs;
 	char		str[1024];
+	FILE*	pidfile;
+
+	thread_up(TRUE,TRUE);
+
+	/* Write the standard .pid file if running as a daemon */
+	/* Must be here so signals are sent to the correct thread */
+	if(is_daemon)  {
+		pidfile=fopen(SBBS_PID_FILE,"w");
+		if(pidfile!=NULL) {
+			fprintf(pidfile,"%d",getpid());
+			fclose(pidfile);
+		}
+	}
 
 	/* Set up blocked signals */
 	sigemptyset(&sigs);
@@ -834,7 +847,6 @@ int main(int argc, char** argv)
 	node_t	node;
 #ifdef __unix__
 	char	daemon_type[2];
-	FILE*	pidfile;
 	struct passwd* pw_entry;
 	struct group*  gr_entry;
 	sigset_t			sigs;
@@ -1366,15 +1378,6 @@ int main(int argc, char** argv)
 
 
 #ifdef __unix__
-	/* Write the standard .pid file if running as a daemon */
-	if(is_daemon)  {
-		pidfile=fopen(SBBS_PID_FILE,"w");
-		if(pidfile!=NULL) {
-			fprintf(pidfile,"%d",getpid());
-			fclose(pidfile);
-		}
-	}
-
 	/* Set up blocked signals */
 	sigemptyset(&sigs);
 	sigaddset(&sigs,SIGINT);