|SSL_CTX| and |X509_STORE| have grown their own locks. Several static
locks have been added to hack around not being able to use a
|CRYPTO_once_t| in public headers. Lastly, support for calling
|SSL_CTX_set_generate_session_id| concurrently with active connections
has been removed. No other property of an |SSL_CTX| works like that.

Change-Id: Iff5fe3ee3fdd6ea9c9daee96f850b107ad8a6bca
Reviewed-on: https://boringssl-review.googlesource.com/4775
Reviewed-by: Adam Langley <agl@google.com>

Beyond generally eliminating unnecessary includes, eliminate as many
includes of headers that declare/define particularly error-prone
functionality like strlen, malloc, and free. crypto/err/internal.h was
added to remove the dependency on openssl/thread.h from the public
openssl/err.h header. The include of <stdlib.h> in openssl/mem.h was
retained since it defines OPENSSL_malloc and friends as macros around
the stdlib.h functions. The public x509.h, x509v3.h, and ssl.h headers
were not changed in order to minimize breakage of source compatibility
with external code.

Change-Id: I0d264b73ad0a720587774430b2ab8f8275960329
Reviewed-on: https://boringssl-review.googlesource.com/4220
Reviewed-by: Adam Langley <agl@google.com>

BUG=456599

Change-Id: Id0652c2aff1cb8a5de35350feb8410285b3fef20
Reviewed-on: https://boringssl-review.googlesource.com/3330
Reviewed-by: Adam Langley <agl@google.com>

Including string.h in base.h causes any file that includes a BoringSSL
header to include string.h. Generally this wouldn't be a problem,
although string.h might slow down the compile if it wasn't otherwise
needed. However, it also causes problems for ipsec-tools in Android
because OpenSSL didn't have this behaviour.

This change removes string.h from base.h and, instead, adds it to each
.c file that requires it.

Change-Id: I5968e50b0e230fd3adf9b72dd2836e6f52d6fb37
Reviewed-on: https://boringssl-review.googlesource.com/3200
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>

This resolves a pile of MSVC warnings in Chromium.

Change-Id: Ib9a29cb88d8ed8ec4118d153260f775be059a803
Reviewed-on: https://boringssl-review.googlesource.com/1865
Reviewed-by: Adam Langley <agl@google.com>

Ensure the library can find the right files under /etc/ssl/certs when
running on older systems.

There are many symbolic links under /etc/ssl/certs created by using
hash of the PEM certificates in order for OpenSSL to find those
certificates. Openssl has a tool to help you create hash symbolic
links (tools/c_rehash). However newer versions of the library changed
the hash algorithm, which makes it unable to run properly on systems
that use the old /etc/ssl/certs layout (e.g. Ubuntu Lucid).

This patch gives a way to find a certificate according to its hash by
using both the old and new algorithms. http://crbug.com/111045 is used
to track this issue.

(Imported from Chromium:
http://src.chromium.org/viewvc/chrome/trunk/deps/third_party/openssl/patches.chromium/0003-x509_hash_name_algorithm_change.patch?revision=231571)

Change-Id: Idbc27aba7685c991f8b94cfea38cf4f3f4b38adc

fix run-away pointer (and potential SEGV) when adding duplicates in
add_cert_dir.

PR: 3261
Reported by: Marian Done

(Imported from upstream's 83fe7b9c83)

Initial fork from f2d678e6e8 (1.0.2 beta).

(This change contains substantial changes from the original and
effectively starts a new history.)