SSL_get_peer_certificate(3) - NetBSD Manual Pages

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SSL_get_peer_certificate(3)  OpenSSL  SSL_get_peer_certificate(3)



NAME

       SSL_get_peer_certificate - get the X509 certificate of the
       peer


LIBRARY

       libcrypto, -lcrypto


SYNOPSIS

        #include <openssl/ssl.h>

        X509 *SSL_get_peer_certificate(SSL *ssl);



DESCRIPTION

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


NOTES

       Due to the protocol definition, a TLS/SSL server will
       always send a certificate, if present. A client will only
       send a certificate when explicitly requested to do so by
       the server (see SSL_CTX_set_verify(3)). If an anonymous
       cipher is used, no certificates are sent.

       That a certificate is returned does not indicate informa-
       tion about the verification state, use 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 explicitly freed using X509_free().


RETURN VALUES

       The following return values can occur:

       NULL
           No certificate was presented by the peer or no connec-
           tion was established.

       Pointer to an X509 certificate
           The return value points to the certificate presented
           by the peer.


SEE ALSO

       ssl(3), SSL_get_verify_result(3), SSL_CTX_set_verify(3)










2002-06-10                    0.9.6g                            1