170 lines
5.2 KiB
Groff
170 lines
5.2 KiB
Groff
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.\" ========================================================================
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.\"
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.IX Title "SSL_get_peer_cert_chain 3"
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.TH SSL_get_peer_cert_chain 3 "2012-05-10" "1.0.1c" "OpenSSL"
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.\" For nroff, turn off justification. Always turn off hyphenation; it makes
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.\" way too many mistakes in technical documents.
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.if n .ad l
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.nh
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.SH "NAME"
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SSL_get_peer_cert_chain \- get the X509 certificate chain of the peer
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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.Vb 1
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\& #include <openssl/ssl.h>
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\&
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\& STACKOF(X509) *SSL_get_peer_cert_chain(const SSL *ssl);
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.Ve
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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\&\fISSL_get_peer_cert_chain()\fR returns a pointer to \s-1STACKOF\s0(X509) certificates
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forming the certificate chain of the peer. If called on the client side,
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the stack also contains the peer's certificate; if called on the server
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side, the peer's certificate must be obtained separately using
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\&\fISSL_get_peer_certificate\fR\|(3).
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If the peer did not present a certificate, \s-1NULL\s0 is returned.
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.SH "NOTES"
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.IX Header "NOTES"
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The peer certificate chain is not necessarily available after reusing
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a session, in which case a \s-1NULL\s0 pointer is returned.
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.PP
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The reference count of the \s-1STACKOF\s0(X509) object is not incremented.
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If the corresponding session is freed, the pointer must not be used
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any longer.
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.SH "RETURN VALUES"
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.IX Header "RETURN VALUES"
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The following return values can occur:
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.IP "\s-1NULL\s0" 4
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.IX Item "NULL"
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No certificate was presented by the peer or no connection was established
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or the certificate chain is no longer available when a session is reused.
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.IP "Pointer to a \s-1STACKOF\s0(X509)" 4
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.IX Item "Pointer to a STACKOF(X509)"
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The return value points to the certificate chain presented by the peer.
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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\&\fIssl\fR\|(3), \fISSL_get_peer_certificate\fR\|(3)
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