TT#12308 Do not access the OpenSSL BIO struct directly

This has become an opaque struct in latest versions, use instead the
accessor that is available already in Debian jessie.

Change-Id: I2a5e17f91707871343b0b358fd195db507d7e43b

debian/patches/fix-build-with-newer-openssl.patch

@@ -0,0 +1,19 @@
+Author: Guillem Jover <gjover@sipwise.com>
+Description: Use a proper accessor instead of messing with the struc directly
+ which has become opaque in latest OpenSSL versions.
+
+---
+ apps/diameter_client/lib_dbase/tcp_comm.c |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/apps/diameter_client/lib_dbase/tcp_comm.c
++++ b/apps/diameter_client/lib_dbase/tcp_comm.c
+@@ -74,7 +74,7 @@ long tcp_ssl_dbg_cb(BIO *bio, int oper,
+   switch (oper) {
+   case BIO_CB_WRITE: {
+     char buf[256];
+-    snprintf(buf, 256, "%s: %s", argp, bio->method->name);
++    snprintf(buf, 256, "%s: %s", argp, BIO_method_name(bio));
+     INFO("%s", buf);
+   } break;
+ 

debian/patches/series

@@ -25,3 +25,4 @@ build-fix-bit-rot.patch
 build-fix-pie.patch
 build-fix-excludes.patch
 build-system-revamp.patch
+fix-build-with-newer-openssl.patch