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135 .IX Title "SSL_CTX_ADD_EXTRA_CHAIN_CERT 3"
136 .TH SSL_CTX_ADD_EXTRA_CHAIN_CERT 3 "2020-12-08" "1.1.1i" "OpenSSL"
137 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
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142 SSL_CTX_add_extra_chain_cert, SSL_CTX_clear_extra_chain_certs \- add or clear extra chain certificates
144 .IX Header "SYNOPSIS"
146 \& #include <openssl/ssl.h>
148 \& long SSL_CTX_add_extra_chain_cert(SSL_CTX *ctx, X509 *x509);
149 \& long SSL_CTX_clear_extra_chain_certs(SSL_CTX *ctx);
152 .IX Header "DESCRIPTION"
153 \&\fBSSL_CTX_add_extra_chain_cert()\fR adds the certificate \fBx509\fR to the extra chain
154 certificates associated with \fBctx\fR. Several certificates can be added one
157 \&\fBSSL_CTX_clear_extra_chain_certs()\fR clears all extra chain certificates
158 associated with \fBctx\fR.
160 These functions are implemented as macros.
163 When sending a certificate chain, extra chain certificates are sent in order
164 following the end entity certificate.
166 If no chain is specified, the library will try to complete the chain from the
167 available \s-1CA\s0 certificates in the trusted \s-1CA\s0 storage, see
168 \&\fBSSL_CTX_load_verify_locations\fR\|(3).
170 The \fBx509\fR certificate provided to \fBSSL_CTX_add_extra_chain_cert()\fR will be
171 freed by the library when the \fB\s-1SSL_CTX\s0\fR is destroyed. An application
172 \&\fBshould not\fR free the \fBx509\fR object.
174 .IX Header "RESTRICTIONS"
175 Only one set of extra chain certificates can be specified per \s-1SSL_CTX\s0
176 structure. Different chains for different certificates (for example if both
177 \&\s-1RSA\s0 and \s-1DSA\s0 certificates are specified by the same server) or different \s-1SSL\s0
178 structures with the same parent \s-1SSL_CTX\s0 cannot be specified using this
179 function. For more flexibility functions such as \fBSSL_add1_chain_cert()\fR should
182 .IX Header "RETURN VALUES"
183 \&\fBSSL_CTX_add_extra_chain_cert()\fR and \fBSSL_CTX_clear_extra_chain_certs()\fR return
184 1 on success and 0 for failure. Check out the error stack to find out the
187 .IX Header "SEE ALSO"
189 \&\fBSSL_CTX_use_certificate\fR\|(3),
190 \&\fBSSL_CTX_set_client_cert_cb\fR\|(3),
191 \&\fBSSL_CTX_load_verify_locations\fR\|(3)
192 \&\fBSSL_CTX_set0_chain\fR\|(3)
193 \&\fBSSL_CTX_set1_chain\fR\|(3)
194 \&\fBSSL_CTX_add0_chain_cert\fR\|(3)
195 \&\fBSSL_CTX_add1_chain_cert\fR\|(3)
196 \&\fBSSL_set0_chain\fR\|(3)
197 \&\fBSSL_set1_chain\fR\|(3)
198 \&\fBSSL_add0_chain_cert\fR\|(3)
199 \&\fBSSL_add1_chain_cert\fR\|(3)
200 \&\fBSSL_CTX_build_cert_chain\fR\|(3)
201 \&\fBSSL_build_cert_chain\fR\|(3)
203 .IX Header "COPYRIGHT"
204 Copyright 2000\-2016 The OpenSSL Project Authors. All Rights Reserved.
206 Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use
207 this file except in compliance with the License. You can obtain a copy
208 in the file \s-1LICENSE\s0 in the source distribution or at
209 <https://www.openssl.org/source/license.html>.