From dfb8d5da527468d7b19fc29aff8dcf465314c461 Mon Sep 17 00:00:00 2001
From: Simon Tatham <anakin@pobox.com>
Date: Sat, 20 Oct 2018 22:46:24 +0100
Subject: [PATCH] Add some missing 'const' in pfl_listen.

---
 portfwd.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/portfwd.c b/portfwd.c
index 5d8250ca..6165df15 100644
--- a/portfwd.c
+++ b/portfwd.c
@@ -516,8 +516,9 @@ static const PlugVtable PortListener_plugvt = {
  * On success, returns NULL and fills in *pl_ret. On error, returns a
  * dynamically allocated error message string.
  */
-static char *pfl_listen(char *desthost, int destport, char *srcaddr,
-                        int port, ConnectionLayer *cl, Conf *conf,
+static char *pfl_listen(const char *desthost, int destport,
+                        const char *srcaddr, int port,
+                        ConnectionLayer *cl, Conf *conf,
                         struct PortListener **pl_ret, int address_family)
 {
     const char *err;