https://github.com/ruby/openssl/commit/695126f582

ASN1_ENUMERATED_to_BN() has been const-correct for a long time in all
supported libcrytos, so we can remove this workaround.

https://github.com/ruby/openssl/commit/d0f36a7c65

This uses the normal accessors but leaves out BIT STRINGS, which will
need compat implementations for ASN1_BIT_STRING_get_length() and
ASN1_BIT_STRING_set1() for older libcryptos.

https://github.com/openssl/openssl/issues/29184
https://github.com/openssl/openssl/issues/29185

https://github.com/ruby/openssl/commit/ba3d1cc5c2

The current logic relies on sscanf() and error checks are almost
entirely missing. It also assumes that ASN1_STRING contents are NUL
terminated, which is undocumented and not guaranteed for all valid
ASN1_TIME objects.

Switch to using ASN1_TIME_to_tm() added in OpenSSL 1.1.1. It is also
supported by LibreSSL and AWS-LC.

In the long term, we may want to replace ASN1_TIME_to_tm() with a
hand-rolled decoder, since the function is intended for a specific
use-case. It is too permissive for strict DER, yet still does not
support all valid DER inputs and silently drops information such as
fractional seconds. However, it handles everything that the current
sscanf() code could handle.

https://github.com/ruby/openssl/commit/73484f6794

Move variable declarations for OpenSSL::ASN1 classes to the top of the
file. asn1time_to_time() will need eASN1Error in the next patch.

https://github.com/ruby/openssl/commit/6c0ef87897

Since around 2018, we have been using spaces for indentation for newly
added code[1]. The mixed use of tabs and spaces has repeatedly confused
new contributors who configured their editors to use a different tab
size than 8. Since git blame can now skip specific commits, ruby/ruby
did a mass reformatting of tabs in 2022[2]. Do the same in ruby/openssl.

While at it, fix a few indentation issues, mainly in switch-case labels
and in ossl_ssl_session.c, which used doubled indentation size.

This patch contains white-space changes only. git diff -w output should
be empty.

[1] https://bugs.ruby-lang.org/issues/14246
[2] https://bugs.ruby-lang.org/issues/18891

https://github.com/ruby/openssl/commit/4d6214f507

This reverts commit https://github.com/ruby/openssl/commit/830505172882.

The commit is part of the bigger effort to rewrite OpenSSL::ASN1 in
Ruby. OpenSSL::ASN1 is relatively isolated from the rest of ruby/openssl
and is not tightly bound to the OpenSSL API. The current implementation
also needs a major refactor for several reasons, so this remains a
long-term goal.

However, the work is not yet complete. We are close to releasing v4.0.0,
and we want to avoid shipping fragmented code in a stable branch. The
changes can be reapplied when the rest is ready.

https://github.com/ruby/openssl/commit/362942dcbf

These declarations were added to every source file because older
versions of RDoc did not resolve ancestor tree across files. Since
RDoc 6.9.0 supports this, this workaround is no longer needed.

    https://redirect.github.com/ruby/rdoc/pull/1217

https://github.com/ruby/openssl/commit/6491ce63be

ruby/openssl exposes OIDs to Ruby as strings in many places, but the
conversion logic has been duplicated and the behavior is inconsistent.
There are mainly two patterns:

 - Returns the short name associated with the OID/NID, or the dotted
   decimal notation if it is unknown to OpenSSL.
 - Returns the long name, or the dotted decimal notation.

These patterns are implemented using different OpenSSL APIs and that
caused subtle differences. Add helper functions ossl_asn1obj_to_string()
and ossl_asn1obj_to_string_long_name() to unify the logic.

Also, document the current behaviors where it is not yet done. The
inconsistency was likely unintentional, but since it dates back to the
original implementations, standardizing it now would cause more issues
than it resolves.

https://github.com/ruby/openssl/commit/2ea36c21a4

obj_to_asn1obj() in ossl_ts.c and ossl_asn1.c are identical. Let's
remove one in ossl_ts.c.

eASN1Error can now be made static to ossl_asn1.c.

https://github.com/ruby/openssl/commit/dcb05c40c2