ssl_get_peer_certificate.pod

来自「一个用于点对点传输加密的工具包源码」· POD 代码 · 共 49 行

=pod

=head1 NAME

SSL_get_peer_certificate - get the X509 certificate of the peer

=head1 SYNOPSIS

 #include <openssl/ssl.h>

 X509 *SSL_get_peer_certificate(SSL *ssl);

=head1 DESCRIPTION

SSL_get_peer_certificate() returns a pointer to the X509 certificate the
peer presented. If the peer did not present a certificate, NULL is returned.

=head1 NOTES

That a certificate is returned does not indicate information about the
verification state, use L<SSL_get_verify_result(3)|SSL_get_verify_result(3)>
to check the verification state.

The reference count of the X509 object is incremented by one, so that it
will not be destroyed when the session containing the peer certificate is
freed. The X509 object must be explicitely freed using X509_free().

=head1 RETURN VALUES

The following return values can occur:

=over 4

=item NULL

No certificate was presented by the peer or no connection was established.

=item Pointer to an X509 certificate

The return value points to the certificate presented by the peer.

=back

=head1 SEE ALSO

L<ssl(3)|ssl(3)>, L<SSL_get_verify_result(3)|SSL_get_verify_result(3)>

=cut