Delete bundled copy of OpenSSL and replace with README.

openssl/patches/eng_dyn_dirs.patch

-From b53cd994adaff887ec126de259e37d769ad585cb Mon Sep 17 00:00:00 2001
-From: Kenny Root <kroot@google.com>
-Date: Fri, 8 Feb 2013 11:22:25 -0800
-Subject: [PATCH] Fix failures when eng_dyn scans multiple directories
-
-If DIR_ADD is called with multiple directories, and the target file
-does not exist in the first directory scanned, the DSO object will still
-be considered "loaded" for the next call of DSO_load(...) and cause
-subsequent calls to DSO_load(...) fail with the reason code of "already
-loaded" even though the load failed.
-
-Additionally, with multiple directories used in eng_dyn, another problem
-manifests because the errors pushed onto the error stack will linger even
-if another library is loaded successfully on subsequent calls to
-DSO_load(...) in the directory scanning loop.
-
-Change-Id: I4ddd24f7b39bd88663e1783f30914870a907acfa
----
- crypto/dso/dso_lib.c    | 8 ++++++++
- crypto/engine/eng_dyn.c | 5 ++++-
- 2 files changed, 12 insertions(+), 1 deletion(-)
-
-diff --git a/crypto/dso/dso_lib.c b/crypto/dso/dso_lib.c
-index 8a15b79..7801529 100644
---- a/crypto/dso/dso_lib.c
-+++ b/crypto/dso/dso_lib.c
-@@ -237,11 +237,19 @@ DSO *DSO_load(DSO *dso, const char *filename, DSO_METHOD *meth, int flags)
-        if(ret->meth->dso_load == NULL)
-                {
-                DSOerr(DSO_F_DSO_LOAD,DSO_R_UNSUPPORTED);
-+               /* Make sure we unset the filename on failure, because we use
-+                * this to determine when the DSO has been loaded above. */
-+               OPENSSL_free(ret->filename);
-+               ret->filename = NULL;
-                goto err;
-                }
-        if(!ret->meth->dso_load(ret))
-                {
-                DSOerr(DSO_F_DSO_LOAD,DSO_R_LOAD_FAILED);
-+               /* Make sure we unset the filename on failure, because we use
-+                * this to determine when the DSO has been loaded above. */
-+               OPENSSL_free(ret->filename);
-+               ret->filename = NULL;
-                goto err;
-                }
-        /* Load succeeded */
-diff --git a/crypto/engine/eng_dyn.c b/crypto/engine/eng_dyn.c
-index 807da7a..8fb8634 100644
---- a/crypto/engine/eng_dyn.c
-+++ b/crypto/engine/eng_dyn.c
-@@ -408,7 +408,7 @@ static int int_load(dynamic_data_ctx *ctx)
-        int num, loop;
-        /* Unless told not to, try a direct load */
-        if((ctx->dir_load != 2) && (DSO_load(ctx->dynamic_dso,
--                               ctx->DYNAMIC_LIBNAME, NULL, 0)) != NULL)
-+                               ctx->DYNAMIC_LIBNAME, NULL, 0) != NULL))
-                return 1;
-        /* If we're not allowed to use 'dirs' or we have none, fail */
-        if(!ctx->dir_load || (num = sk_OPENSSL_STRING_num(ctx->dirs)) < 1)
-@@ -423,6 +423,9 @@ static int int_load(dynamic_data_ctx *ctx)
-                        {
-                        /* Found what we're looking for */
-                        OPENSSL_free(merge);
-+                       /* Previous failed loop iterations, if any, will have resulted in
-+                        * errors. Clear them out before returning success. */
-+                       ERR_clear_error();
-                        return 1;
-                        }
-                OPENSSL_free(merge);
--- 
-1.7.12.3-x20-1
-