[PATCH 2/3] tcp: add a dprintf for opening tcp connections

[Josef Bacik <jbacik@fb.com>]

In debugging strange timeouts and other network problems it has been helpful to
see when we're opening new connections to get an idea of where we're having a
breakdown.

Signed-off-by: Josef Bacik <jbacik@fb.com>
---
 grub-core/net/tcp.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/grub-core/net/tcp.c b/grub-core/net/tcp.c
index 2d1706e..cb97d05 100644
--- a/grub-core/net/tcp.c
+++ b/grub-core/net/tcp.c
@@ -632,6 +632,8 @@ grub_net_tcp_open (char *server,
   grub_uint8_t *nbd;
   grub_net_link_level_address_t ll_target_addr;
   grub_size_t headersize;
+  char addr_buf[GRUB_NET_MAX_STR_ADDR_LEN];
+  char gateway_buf[GRUB_NET_MAX_STR_ADDR_LEN];
 
   err = grub_net_resolve_address (server, &addr);
   if (err)
@@ -656,6 +658,11 @@ grub_net_tcp_open (char *server,
   if (socket == NULL)
     return NULL; 
 
+  grub_net_addr_to_str (&addr, addr_buf);
+  grub_net_addr_to_str (&gateway, gateway_buf);
+  grub_dprintf("net", "opening connection to %s on inf %s via gateway %s\n",
+	       addr_buf, inf->name, gateway_buf);
+
   socket->out_port = out_port;
   socket->inf = inf;
   socket->out_nla = addr;
-- 
2.5.0