Don’t use only last protocol from getaddrinfo

Problem reported by Ken Brown in:
http://lists.gnu.org/archive/html/emacs-devel/2016-05/msg00483.html
* src/process.c (conv_addrinfo_to_lisp): New function.
(connect_network_socket): Arg is now a list of addrinfos, not
merely IP addresses.  All uses changed.  Use protocol from
each addrinfo.
(Fmake_network_process): Accumulate protocols into addrinfos
rather than just using the last one found.
(check_for_dns): Accumulate protocols here, too.
* src/process.h (struct Lisp_Process): Remove ai_protocol;
no longer needed.

1 files changed, 0 insertions, 2 deletions

diff --git a/src/process.h b/src/process.h
index 20593f5e8fa..a5f690dc55f 100644
--- a/src/process.h
+++ b/src/process.h
@@ -173,8 +173,6 @@ struct Lisp_Process
     int port;
     /* The socket type. */
     int socktype;
-    /* The socket protocol. */
-    int ai_protocol;
 
 #ifdef HAVE_GETADDRINFO_A
     /* Whether the socket is waiting for response from an asynchronous