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140 .IX Title "SSL_GET_PEER_CERT_CHAIN 1"
141 .TH SSL_GET_PEER_CERT_CHAIN 1 "perl v5.6.1" "2001-05-20" "User Contributed Perl Documentation"
144 SSL_get_peer_cert_chain \- get the X509 certificate chain of the peer
146 .IX Header "SYNOPSIS"
148 \& #include <openssl/ssl.h>
151 \& STACKOF(X509) *SSL_get_peer_cert_chain(SSL *ssl);
154 .IX Header "DESCRIPTION"
155 \&\fISSL_get_peer_cert_chain()\fR returns a pointer to STACKOF(X509) certificates
156 forming the certificate chain of the peer. If called on the client side,
157 the stack also contains the peer's certificate; if called on the server
158 side, the peer's certificate must be obtained separately using
159 SSL_get_peer_certificate(3).
160 If the peer did not present a certificate, \s-1NULL\s0 is returned.
163 The peer certificate chain is not necessarily available after reusing
164 a session, in which case a \s-1NULL\s0 pointer is returned.
166 The reference count of the STACKOF(X509) object is not incremented.
167 If the corresponding session is freed, the pointer must not be used
170 .IX Header "RETURN VALUES"
171 The following return values can occur:
174 No certificate was presented by the peer or no connection was established
175 or the certificate chain is no longer available when a session is reused.
176 .Ip "Pointer to a STACKOF(X509)" 4
177 .IX Item "Pointer to a STACKOF(X509)"
178 The return value points to the certificate chain presented by the peer.
180 .IX Header "SEE ALSO"
181 ssl(3), SSL_get_peer_certificate(3)