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Linux 2.6 - man page for ssl_get_peer_certificate (linux section 3SSL)

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SSL_get_peer_certificate(3SSL)		     OpenSSL		   SSL_get_peer_certificate(3SSL)

NAME
       SSL_get_peer_certificate - get the X509 certificate of the peer

SYNOPSIS
	#include <openssl/ssl.h>

	X509 *SSL_get_peer_certificate(const SSL *ssl);

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.

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 information 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 connection 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)

1.0.0e					    2005-03-30		   SSL_get_peer_certificate(3SSL)
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