[patch] Fix resource leak in netcat

[Nan Xiao]

Hi tech@,

The following patch fixed the resource leak when netcat works as a TLS
server. Sorry if I am wrong, thanks!


Index: netcat.c
===================================================================
RCS file: /cvs/src/usr.bin/nc/netcat.c,v
retrieving revision 1.194
diff -u -p -r1.194 netcat.c
--- netcat.c    7 Sep 2018 09:55:29 -0000       1.194
+++ netcat.c    30 Sep 2018 03:50:03 -0000
@@ -633,6 +633,11 @@ main(int argc, char *argv[])
                        if (!kflag)
                                break;
                }
+
+               if (tls_ctx) {
+                       tls_free(tls_ctx);
+                       tls_ctx = NULL;
+               }
        } else if (family == AF_UNIX) {
                ret = 0;

-- 
Best Regards
Nan Xiao