Richard Levitte 36f5ec55e6 Add functions to see if a provider is available for use. ... Public function OSSL_PROVIDER_available() takes a library context and a provider name, and returns 1 if it's available for use, i.e. if it's possible to fetch implementations from it, otherwise 0. Internal function ossl_provider_activated() returns 1 if the given OSSL_PROVIDER is activated, otherwise 0. To make this possible, the activation of fallbacks got refactored out to a separate function, which ended up simplifying the code. Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/9398)		2019-07-26 18:14:41 +02:00
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man3	Add functions to see if a provider is available for use.	2019-07-26 18:14:41 +02:00