=pod
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=head1 NAME
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SSL_CTX_set0_verify_cert_store, SSL_CTX_set1_verify_cert_store,
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SSL_CTX_set0_chain_cert_store, SSL_CTX_set1_chain_cert_store,
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SSL_set0_verify_cert_store, SSL_set1_verify_cert_store,
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SSL_set0_chain_cert_store, SSL_set1_chain_cert_store - set certificate
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verification or chain store
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=head1 SYNOPSIS
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#include <openssl/ssl.h>
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int SSL_CTX_set0_verify_cert_store(SSL_CTX *ctx, X509_STORE *st);
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int SSL_CTX_set1_verify_cert_store(SSL_CTX *ctx, X509_STORE *st);
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int SSL_CTX_set0_chain_cert_store(SSL_CTX *ctx, X509_STORE *st);
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int SSL_CTX_set1_chain_cert_store(SSL_CTX *ctx, X509_STORE *st);
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int SSL_set0_verify_cert_store(SSL *ctx, X509_STORE *st);
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int SSL_set1_verify_cert_store(SSL *ctx, X509_STORE *st);
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int SSL_set0_chain_cert_store(SSL *ctx, X509_STORE *st);
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int SSL_set1_chain_cert_store(SSL *ctx, X509_STORE *st);
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=head1 DESCRIPTION
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SSL_CTX_set0_verify_cert_store() and SSL_CTX_set1_verify_cert_store()
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set the certificate store used for certificate verification to B<st>.
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SSL_CTX_set0_chain_cert_store() and SSL_CTX_set1_chain_cert_store()
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set the certificate store used for certificate chain building to B<st>.
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SSL_set0_verify_cert_store(), SSL_set1_verify_cert_store(),
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SSL_set0_chain_cert_store() and SSL_set1_chain_cert_store() are similar
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except they apply to SSL structure B<ssl>.
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All these functions are implemented as macros. Those containing a B<1>
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increment the reference count of the supplied store so it must
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be freed at some point after the operation. Those containing a B<0> do
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not increment reference counts and the supplied store B<MUST NOT> be freed
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after the operation.
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=head1 NOTES
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The stores pointers associated with an SSL_CTX structure are copied to any SSL
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structures when SSL_new() is called. As a result SSL structures will not be
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affected if the parent SSL_CTX store pointer is set to a new value.
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The verification store is used to verify the certificate chain sent by the
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peer: that is an SSL/TLS client will use the verification store to verify
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the server's certificate chain and a SSL/TLS server will use it to verify
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any client certificate chain.
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The chain store is used to build the certificate chain.
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If the mode B<SSL_MODE_NO_AUTO_CHAIN> is set or a certificate chain is
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configured already (for example using the functions such as
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L<SSL_CTX_add1_chain_cert(3)> or
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L<SSL_CTX_add_extra_chain_cert(3)>) then
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automatic chain building is disabled.
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If the mode B<SSL_MODE_NO_AUTO_CHAIN> is set then automatic chain building
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is disabled.
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If the chain or the verification store is not set then the store associated
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with the parent SSL_CTX is used instead to retain compatibility with previous
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versions of OpenSSL.
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=head1 RETURN VALUES
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All these functions return 1 for success and 0 for failure.
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=head1 SEE ALSO
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L<SSL_CTX_add_extra_chain_cert(3)>
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L<SSL_CTX_set0_chain(3)>
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L<SSL_CTX_set1_chain(3)>
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L<SSL_CTX_add0_chain_cert(3)>
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L<SSL_CTX_add1_chain_cert(3)>
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L<SSL_set0_chain(3)>
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L<SSL_set1_chain(3)>
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L<SSL_add0_chain_cert(3)>
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L<SSL_add1_chain_cert(3)>
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L<SSL_CTX_build_cert_chain(3)>
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L<SSL_build_cert_chain(3)>
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=head1 HISTORY
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These functions were added in OpenSSL 1.0.2.
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=head1 COPYRIGHT
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Copyright 2013-2016 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the OpenSSL license (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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