From c533aca08e29d4f659ca0ac011e5162b483dc6a9 Mon Sep 17 00:00:00 2001
From: Denys Vlasenko <vda.linux@googlemail.com>
Date: Mon, 7 Oct 2013 16:42:26 +0200
Subject: pmap_getport: use TCP to talk to portmapper if protocol ==
IPPROTO_TCP.
Before the patch, the query itself was sent via UDP
(the query contained correct protocol ID).
The fix is taken from glibc.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
---
libc/inet/rpc/pm_getport.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
(limited to 'libc/inet/rpc')
diff --git a/libc/inet/rpc/pm_getport.c b/libc/inet/rpc/pm_getport.c
index ac20bb18c..9a0e79178 100644
--- a/libc/inet/rpc/pm_getport.c
+++ b/libc/inet/rpc/pm_getport.c
@@ -65,7 +65,19 @@ pmap_getport (struct sockaddr_in *address, u_long program, u_long version,
struct pmap parms;
address->sin_port = htons (PMAPPORT);
- client = clntudp_bufcreate (address, PMAPPROG,
+ if (protocol == IPPROTO_TCP)
+ {
+ // glibc does this:
+ ///* Don't need a reserved port to get ports from the portmapper. */
+ //socket = __get_socket(address); // does socket(TCP),bind(),connect(address)
+ //if (_socket != -1)
+ // closeit = true;
+ // do we need/want to do the same?
+ client = clnttcp_create (address, PMAPPROG,
+ PMAPVERS, &_socket, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE);
+ }
+ else
+ client = clntudp_bufcreate (address, PMAPPROG,
PMAPVERS, timeout, &_socket, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE);
if (client != (CLIENT *) NULL)
{
--
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