defer the switch to syslog until AFTER the tunnel is fully up,

This way, initial connection information and background PID will be usefully
printed to the console, as will errors which prevent the tunnel from being
started (and thus cause OpenConnect to abort as soon as it's established
a connection to the server).

This is a further refinement of 557ac6cf (!117).
Signed-off-by: Daniel Lenski <dlenski@gmail.com>

main.c

@@ -82,6 +82,7 @@ static int verbose = PRG_INFO;
 static int timestamp;
 #ifndef _WIN32
 static int background;
+static int use_syslog = 0;
 static FILE *pid_fp = NULL;
 static char *pidfile = NULL;
 #endif
@@ -1506,7 +1507,14 @@ static void fully_up_cb(void *_vpninfo) {
 #ifndef _WIN32
 	if (background)
 		pid_fp = background_self(vpninfo, pidfile);
-#endif
+
+#ifndef __native_client__
+	if (use_syslog) {
+		openlog("openconnect", LOG_PID, LOG_DAEMON);
+		vpninfo->progress = syslog_progress;
+	}
+#endif /* !__native_client__ */
+#endif /* !_WIN32 */
 }
 
 int main(int argc, char **argv)
@@ -1531,7 +1539,6 @@ int main(int argc, char **argv)
 #ifndef _WIN32
 	struct sigaction sa;
 	struct utsname utsbuf;
-	int use_syslog = 0;
 #endif
 
 #ifdef ENABLE_NLS
@@ -2068,13 +2075,6 @@ int main(int argc, char **argv)
 	}
 
 
-#if !defined(_WIN32) && !defined(__native_client__)
-	if (use_syslog) {
-		openlog("openconnect", LOG_PID, LOG_DAEMON);
-		vpninfo->progress = syslog_progress;
-	}
-#endif /* !_WIN32 && !__native_client__ */
-
 	if (!vpninfo->vpnc_script) {
 		vpn_progress(vpninfo, PRG_INFO,
 			     _("No --script argument provided; DNS and routing are not configured\n"));

openconnect.8.in

@@ -226,7 +226,7 @@ Use
 for tunnel interface
 .TP
 .B \-l,\-\-syslog
-Use syslog for progress messages
+After tunnel is brought up, use syslog for further progress messages
 .TP
 .B \-\-timestamp
 Prepend a timestamp to each progress message