Remove CSD script when done with it

We still don't remove it if the user hits Ctrl-C when we're logging in.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

library.c

@@ -78,7 +78,10 @@ void openconnect_vpninfo_free (struct openconnect_info *vpninfo)
 	free(vpninfo->redirect_url);
 	free(vpninfo->proxy_type);
 	free(vpninfo->proxy);
-	free(vpninfo->csd_scriptname);
+	if (vpninfo->csd_scriptname) {
+		unlink(vpninfo->csd_scriptname);
+		free(vpninfo->csd_scriptname);
+	}
 	free(vpninfo->csd_stuburl);
 	/* These are const in openconnect itself, but for consistency of
 	   the library API we do take ownership of the strings we're given,

main.c

@@ -762,6 +762,10 @@ int main(int argc, char **argv)
 #endif
 
 	if (!vpninfo->cookie && openconnect_obtain_cookie(vpninfo)) {
+		if (vpninfo->csd_scriptname) {
+			unlink(vpninfo->csd_scriptname);
+			vpninfo->csd_scriptname = NULL;
+		}
 		fprintf(stderr, _("Failed to obtain WebVPN cookie\n"));
 		exit(1);
 	}