--- stunnel-4.15/src/options.c~	2011-03-15 15:53:36.000000000 +0100
+++ stunnel-4.15/src/options.c	2011-03-15 15:53:36.000000000 +0100
@@ -758,6 +785,24 @@
         break;
     }
 
+    /* listenqueue */
+    switch(cmd) {
+    case CMD_INIT:
+        section->listenqueue=SOMAXCONN;
+        break;
+    case CMD_EXEC:
+        if(strcasecmp(opt, "listenqueue"))
+	    break;
+	section->listenqueue=atoi(arg);
+	return (section->listenqueue?NULL:"Bad verify level");
+    case CMD_DEFAULT:
+        log_raw("%-15s = %d", "listenqueue", SOMAXCONN);
+	break;
+    case CMD_HELP:
+        log_raw("%-15s = defines the maximum length the queue of pending connections may grow to", "listenqueue");
+	break;
+    }
+
     /* local */
     switch(cmd) {
     case CMD_INIT:
--- stunnel-4.15/src/prototypes.h~	2011-03-15 15:54:06.000000000 +0100
+++ stunnel-4.15/src/prototypes.h	2011-03-15 15:54:06.000000000 +0100
@@ -171,6 +171,7 @@
     int timeout_close; /* Maximum close_notify time */
     int timeout_connect; /* Maximum connect() time */
     int timeout_idle; /* Maximum idle connection time */
+    int listenqueue; /* Listen baklog */
 
         /* protocol name for protocol.c */
     char *protocol;
--- stunnel-4.15/src/stunnel.c~	2011-03-15 15:54:53.000000000 +0100
+++ stunnel-4.15/src/stunnel.c	2011-03-15 15:54:53.000000000 +0100
@@ -140,7 +140,7 @@
             exit(1);
         }
         s_log(LOG_DEBUG, "%s bound to %s", opt->servname, opt->local_address);
-        if(listen(opt->fd, 5)) {
+        if(listen(opt->fd, opt->listenqueue)) {
             sockerror("listen");
             exit(1);
         }