Update build for OpenSSL-0.9.8j upgrade.
[dragonfly.git] / secure / lib / libssl / man / SSL_get_peer_certificate.3
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132.\" ========================================================================
133.\"
134.IX Title "SSL_get_peer_certificate 3"
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135.TH SSL_get_peer_certificate 3 "2009-01-11" "0.9.8j" "OpenSSL"
136.\" For nroff, turn off justification. Always turn off hyphenation; it makes
137.\" way too many mistakes in technical documents.
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140.SH "NAME"
141SSL_get_peer_certificate \- get the X509 certificate of the peer
142.SH "SYNOPSIS"
e056f0e0 143.IX Header "SYNOPSIS"
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144.Vb 1
145\& #include <openssl/ssl.h>
e257b235 146\&
a561f9ff 147\& X509 *SSL_get_peer_certificate(const SSL *ssl);
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148.Ve
149.SH "DESCRIPTION"
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150.IX Header "DESCRIPTION"
151\&\fISSL_get_peer_certificate()\fR returns a pointer to the X509 certificate the
152peer presented. If the peer did not present a certificate, \s-1NULL\s0 is returned.
984263bc 153.SH "NOTES"
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154.IX Header "NOTES"
155Due to the protocol definition, a \s-1TLS/SSL\s0 server will always send a
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156certificate, if present. A client will only send a certificate when
157explicitly requested to do so by the server (see
e056f0e0 158\&\fISSL_CTX_set_verify\fR\|(3)). If an anonymous cipher
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159is used, no certificates are sent.
160.PP
161That a certificate is returned does not indicate information about the
e056f0e0 162verification state, use \fISSL_get_verify_result\fR\|(3)
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163to check the verification state.
164.PP
165The reference count of the X509 object is incremented by one, so that it
166will not be destroyed when the session containing the peer certificate is
167freed. The X509 object must be explicitly freed using \fIX509_free()\fR.
168.SH "RETURN VALUES"
e056f0e0 169.IX Header "RETURN VALUES"
984263bc 170The following return values can occur:
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171.IP "\s-1NULL\s0" 4
172.IX Item "NULL"
984263bc 173No certificate was presented by the peer or no connection was established.
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174.IP "Pointer to an X509 certificate" 4
175.IX Item "Pointer to an X509 certificate"
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176The return value points to the certificate presented by the peer.
177.SH "SEE ALSO"
a7d27d5a 178.IX Header "SEE ALSO"
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179\&\fIssl\fR\|(3), \fISSL_get_verify_result\fR\|(3),
180\&\fISSL_CTX_set_verify\fR\|(3)