Fix things so that chains of certificates work in the server and client

certificate files.

This only really works for OpenSSL-based builds, as yassl is unable to read

multiple certificates from a file.  The patch below to yassl/src/ssl.cpp

doesn't fix that, but just arranges that the viosslfactories.c patch won't

have any ill effects in a yassl build.  Since we don't use yassl in Red Hat/

Fedora builds, I'm not feeling motivated to try to fix yassl for this.

See RH bug #598656.  Filed upstream at http://bugs.mysql.com/bug.php?id=54158

diff -Naur mysql-5.5.28.orig/extra/yassl/src/ssl.cpp mysql-5.5.28/extra/yassl/src/ssl.cpp

--- mysql-5.5.28.orig/extra/yassl/src/ssl.cpp	2012-08-29 04:50:46.000000000 -0400

+++ mysql-5.5.28/extra/yassl/src/ssl.cpp	2012-09-29 12:45:19.682287214 -0400

@@ -1627,10 +1627,10 @@

     }

-    int SSL_CTX_use_certificate_chain_file(SSL_CTX*, const char*)

+    int SSL_CTX_use_certificate_chain_file(SSL_CTX* ctx, const char* file)

     {

-        // TDOD:

-        return SSL_SUCCESS;

+        // For the moment, treat like use_certificate_file

+        return read_file(ctx, file, SSL_FILETYPE_PEM, Cert);

     }

diff -Naur mysql-5.5.28.orig/vio/viosslfactories.c mysql-5.5.28/vio/viosslfactories.c

--- mysql-5.5.28.orig/vio/viosslfactories.c	2012-08-29 04:50:46.000000000 -0400

+++ mysql-5.5.28/vio/viosslfactories.c	2012-09-29 12:46:35.124975585 -0400

@@ -106,7 +106,7 @@

     key_file= cert_file;

   if (cert_file &&

-      SSL_CTX_use_certificate_file(ctx, cert_file, SSL_FILETYPE_PEM) <= 0)

+      SSL_CTX_use_certificate_chain_file(ctx, cert_file) <= 0)

   {

     *error= SSL_INITERR_CERT;

     DBUG_PRINT("error",("%s from file '%s'", sslGetErrString(*error), cert_file));