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=pod
=head1 NAME
SSL_CTX_set_cert_store, SSL_CTX_get_cert_store - manipulate X509 certificate verification storage
=head1 SYNOPSIS
#include <openssl/ssl.h>
void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store);
X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx);
=head1 DESCRIPTION
SSL_CTX_set_cert_store() sets/replaces the certificate verification storage
of B<ctx> to/with B<store>. If another X509_STORE object is currently
set in B<ctx>, it will be X509_STORE_free()ed.
SSL_CTX_get_cert_store() returns a pointer to the current certificate
verification storage.
=head1 NOTES
In order to verify the certificates presented by the peer, trusted CA
certificates must be accessed. These CA certificates are made available
via lookup methods, handled inside the X509_STORE. From the X509_STORE
the X509_STORE_CTX used when verifying certificates is created.
Typically the trusted certificate store is handled indirectly via using
L<SSL_CTX_load_verify_locations(3)|SSL_CTX_load_verify_locations(3)>.
Using the SSL_CTX_set_cert_store() and SSL_CTX_get_cert_store() functions
it is possible to manipulate the X509_STORE object beyond the
L<SSL_CTX_load_verify_locations(3)|SSL_CTX_load_verify_locations(3)>
call.
Currently no detailed documentation on how to use the X509_STORE
object is available. Not all members of the X509_STORE are used when
the verification takes place. So will e.g. the verify_callback() be
overridden with the verify_callback() set via the
L<SSL_CTX_set_verify(3)|SSL_CTX_set_verify(3)> family of functions.
This document must therefore be updated when documentation about the
X509_STORE object and its handling becomes available.
=head1 RETURN VALUES
SSL_CTX_set_cert_store() does not return diagnostic output.
SSL_CTX_get_cert_store() returns the current setting.
=head1 SEE ALSO
L<ssl(3)|ssl(3)>,
L<SSL_CTX_load_verify_locations(3)|SSL_CTX_load_verify_locations(3)>,
L<SSL_CTX_set_verify(3)|SSL_CTX_set_verify(3)>
=cut
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