5 SSL_CTX_add_extra_chain_cert - add certificate to chain
9 #include <openssl/ssl.h>
11 long SSL_CTX_add_extra_chain_cert(SSL_CTX ctx, X509 *x509)
15 SSL_CTX_add_extra_chain_cert() adds the certificate B<x509> to the certificate
16 chain presented together with the certificate. Several certificates
17 can be added one after the other.
21 When constructing the certificate chain, the chain will be formed from
22 these certificates explicitly specified. If no chain is specified,
23 the library will try to complete the chain from the available CA
24 certificates in the trusted CA storage, see
25 L<SSL_CTX_load_verify_locations(3)|SSL_CTX_load_verify_locations(3)>.
27 The B<x509> certificate provided to SSL_CTX_add_extra_chain_cert() will be freed by the library when the B<SSL_CTX> is destroyed. An application B<should not> free the B<x509> object.
31 Only one set of extra chain certificates can be specified per SSL_CTX
32 structure. Different chains for different certificates (for example if both
33 RSA and DSA certificates are specified by the same server) or different SSL
34 structures with the same parent SSL_CTX cannot be specified using this
39 SSL_CTX_add_extra_chain_cert() returns 1 on success. Check out the
40 error stack to find out the reason for failure otherwise.
45 L<SSL_CTX_use_certificate(3)|SSL_CTX_use_certificate(3)>,
46 L<SSL_CTX_set_client_cert_cb(3)|SSL_CTX_set_client_cert_cb(3)>,
47 L<SSL_CTX_load_verify_locations(3)|SSL_CTX_load_verify_locations(3)>