Adding wolfSSL (formerly CyaSSL) support
=====

In order to support SSL *HTTPS* connections in Civetweb,
you may wish to use the GPLv2 licensed CyaSSL library.  By using this
library, the resulting binary may have to have the GPL license unless
you buy a commercial license from [wolfSSL](http://www.yassl.com/).

*Note: The following instructions have not been checked for the most recent versions of CivetWeb and wolfSSL. Some information might be outdated. All current versions of CivetWeb are tested using [OpenSSL](OpenSSL.md). CivetWeb uses the OpenSSL API functions - wolfSSL
provides an OpenSSL compatibility layer. However, when new TLS features are added to CivetWeb, it is not checked if corresponding functions work the same, or even if they exist at all within this compatibility layer.*


Getting Started
----

- Download Cayssl at https://www.wolfssl.com (formerly http://www.yassl.com/)
- Extract the zip file
    - To make this seemless, extract to a directory parallel to with Civetweb is

### Example Project

If you download cyaSSL to cyassl-2.7.0 in a directory parallel to Civetweb, you can open the *VS/civetweb_yassl* solution in Visual Studio.

Build Configuration
----

#### Required include paths for both civetweb and cyassl
 - *cyassl_directory*\
 - *cyassl_directory*\cyassl\

#### Required civetweb preprocessor defines
 - USE_YASSL
 - NO_SSL_DL

#### Required cySSL preprocessor defines
 - OPENSSL_EXTRA
 - HAVE_ERRNO_H
 - HAVE_GETHOSTBYNAME
 - HAVE_INET_NTOA
 - HAVE_LIMITS_H
 - HAVE_MEMSET
 - HAVE_SOCKET
 - HAVE_STDDEF_H
 - HAVE_STDLIB_H
 - HAVE_STRING_H
 - HAVE_SYS_STAT_H
 - HAVE_SYS_TYPES_H

#### Required CyaSSL source files

 - ctaocrypt/src/aes.c
 - ctaocrypt/src/arc4.c
 - ctaocrypt/src/asn.c
 - ctaocrypt/src/coding.c
 - ctaocrypt/src/des3.c
 - ctaocrypt/src/dh.c
 - ctaocrypt/src/dsa.c
 - ctaocrypt/src/ecc.c
 - ctaocrypt/src/error.c
 - ctaocrypt/src/hc128.c
 - ctaocrypt/src/hmac.c
 - ctaocrypt/src/integer.c
 - ctaocrypt/src/logging.c
 - ctaocrypt/src/md2.c
 - ctaocrypt/src/md4.c
 - ctaocrypt/src/md5.c
 - ctaocrypt/src/memory.c
 - ctaocrypt/src/misc.c
 - ctaocrypt/src/pwdbased.c
 - ctaocrypt/src/rabbit.c
 - ctaocrypt/src/random.c
 - ctaocrypt/src/ripemd.c
 - ctaocrypt/src/rsa.c
 - ctaocrypt/src/sha.c
 - ctaocrypt/src/sha256.c
 - ctaocrypt/src/sha512.c
 - ctaocrypt/src/tfm.c
 - src/crl.c
 - src/internal.c
 - src/io.c
 - src/keys.c
 - src/ocsp.c
 - src/sniffer.c
 - src/ssl.c
 - src/tls.c