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doc: OPENSSL_CORE_CTX should never be cast to OSSL_LIB_CTX

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Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16771)
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Tomas Mraz 2021-10-07 11:10:19 +02:00
parent d11cab4781
commit 2b80a7490d
1 changed files with 7 additions and 3 deletions
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10
doc/man7/provider-base.pod
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@ -220,10 +220,14 @@ the thread that is stopping and gets passed the provider context as an
argument. This may be useful to perform thread specific clean up such as
freeing thread local variables.
core_get_libctx() retrieves the library context in which the library
core_get_libctx() retrieves the core context in which the library
object for the current provider is stored, accessible through the I<handle>.
This may sometimes be useful if the provider wishes to store a
reference to its context in the same library context.
This function is useful only for built-in providers such as the default
provider. Never cast this to OSSL_LIB_CTX in a provider that is not
built-in as the OSSL_LIB_CTX of the library loading the provider might be
a completely different structure than the OSSL_LIB_CTX of the library the
provider is linked to. Use L<OSSL_LIB_CTX_new_child(3)> instead to obtain
a proper library context that is linked to the application library context.
core_new_error(), core_set_error_debug() and core_vset_error() are
building blocks for reporting an error back to the core, with