1 .\" $OpenBSD: SSL_get_peer_cert_chain.3,v 1.3 2017/03/28 18:21:55 schwarze Exp $
2 .\" OpenSSL SSL_get_peer_cert_chain.pod 1f164c6f Jan 18 01:40:36 2017 +0100
3 .\" OpenSSL SSL_get_peer_cert_chain.pod 9b86974e Aug 17 15:21:33 2015 -0400
5 .\" This file was written by Lutz Jaenicke <jaenicke@openssl.org>.
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53 .Dd $Mdocdate: March 28 2017 $
54 .Dt SSL_GET_PEER_CERT_CHAIN 3
57 .Nm SSL_get_peer_cert_chain
58 .Nd get the X509 certificate chain sent by the peer
62 .Fn SSL_get_peer_cert_chain "const SSL *ssl"
64 .Fn SSL_get_peer_cert_chain
66 .Dv STACK_OF Ns Po Vt X509 Pc
67 certificates forming the certificate chain of the peer.
68 If called on the client side, the stack also contains the peer's certificate;
69 if called on the server side, the peer's certificate must be obtained
71 .Xr SSL_get_peer_certificate 3 .
72 If the peer did not present a certificate,
76 .Fn SSL_get_peer_cert_chain
77 returns the peer chain as sent by the peer: it only consists of
78 certificates the peer has sent (in the order the peer has sent them)
79 and it is not a verified chain.
81 If the session is resumed, peers do not send certificates, so a
85 .Fn SSL_session_reused
86 to determine whether a session is resumed.
88 The reference count of the
89 .Dv STACK_OF Ns Po Vt X509 Pc
90 object is not incremented.
91 If the corresponding session is freed, the pointer must not be used any longer.
93 The following return values can occur:
96 No certificate was presented by the peer or no connection was established or
97 the certificate chain is no longer available when a session is reused.
98 .It Pointer to a Dv STACK_OF Ns Po X509 Pc
99 The return value points to the certificate chain presented by the peer.
103 .Xr SSL_get_peer_certificate 3