Small source fix makes using BoringSSL easier about asio

[thughes]

+1

FWIW, it looks like SSL_R_SHORT_READ has been removed in openssl as well: openssl/openssl@45f55f6

[chriskohlhoff]

Fixed in commits 628e3ca, 5fa8053 and 92bfc62.

Note that a new ssl::error::stream_truncated error code has been added, rather than reusing SSL_R_SHORT_READ.

[RajatKumar007]

I am trying to integrate boringssl with boost asio version 1.10.7. But getting several compilation error as :

boost/asio/ssl/impl/context.ipp:208:16: error: member access into incomplete type 'SSL_CTX' (aka 'ssl_ctx_st')
if (handle_->default_passwd_callback_userdata)
^
boringssl/include\openssl/base.h:333:16: note: forward declaration of 'ssl_ctx_st'
typedef struct ssl_ctx_st SSL_CTX;

boost/asio/ssl/detail/impl/engine.ipp:207:34: error: too many arguments provided to function-like macro invocation
ERR_PACK(ERR_LIB_SSL, 0, SSL_R_SHORT_READ),
^
boringssl/include\openssl/err.h:446:9: note: macro 'ERR_PACK' defined here
#define ERR_PACK(lib, reason)