diff -Naur stunnel.orig/src/client.c stunnel/src/client.c
--- stunnel.orig/src/client.c	2008-03-27 04:35:27.000000000 -0400
+++ stunnel/src/client.c	2008-11-19 21:40:00.000000000 -0500
@@ -191,6 +191,7 @@
     enter_critical_section(CRIT_CLIENTS); /* for multi-cpu machines */
     s_log(LOG_DEBUG, "%s finished (%d left)", c->opt->servname,
         --num_clients);
+	if (getenv("STUNNEL_ONCE")) {fprintf(stderr, "stunnel: exiting.\n"); exit(0);}
     leave_critical_section(CRIT_CLIENTS);
 #endif
 }
diff -Naur stunnel.orig/src/network.c stunnel/src/network.c
--- stunnel.orig/src/network.c	2008-03-27 05:28:16.000000000 -0400
+++ stunnel/src/network.c	2008-11-19 21:39:41.000000000 -0500
@@ -346,6 +346,7 @@
         /* no logging is possible in a signal handler */
 #ifdef USE_FORK
         --num_clients; /* one client less */
+	if (getenv("STUNNEL_ONCE")) exit(0);
 #endif /* USE_FORK */
     }
 #else /* __sgi */
@@ -432,9 +433,11 @@
 #ifdef HAVE_WAIT_FOR_PID
     while((pid=wait_for_pid(-1, &status, WNOHANG))>0) {
         --num_clients; /* one client less */
+	if (getenv("STUNNEL_ONCE")) exit(0);
 #else
     if((pid=wait(&status))>0) {
         --num_clients; /* one client less */
+	if (getenv("STUNNEL_ONCE")) exit(0);
 #endif
 #ifdef WIFSIGNALED
         if(WIFSIGNALED(status)) {
diff -Naur stunnel.orig/src/options.c stunnel/src/options.c
--- stunnel.orig/src/options.c	2008-06-21 17:18:23.000000000 -0400
+++ stunnel/src/options.c	2008-11-19 21:15:01.000000000 -0500
@@ -465,6 +465,7 @@
     switch(cmd) {
     case CMD_INIT:
         options.option.syslog=1;
+	if (getenv("STUNNEL_NO_SYSLOG")) options.option.syslog=0;
         break;
     case CMD_EXEC:
         if(strcasecmp(opt, "syslog"))
diff -Naur stunnel.orig/src/stunnel.c stunnel/src/stunnel.c
--- stunnel.orig/src/stunnel.c	2008-06-21 17:32:45.000000000 -0400
+++ stunnel/src/stunnel.c	2008-11-19 21:14:28.000000000 -0500
@@ -301,6 +301,7 @@
     }
 #endif
 #endif
+	if (getenv("STUNNEL_MAX_CLIENTS")) max_clients = atoi(getenv("STUNNEL_MAX_CLIENTS"));
 }
 
 #if !defined (USE_WIN32) && !defined (__vms) && !defined(USE_OS2)