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SSL_CTX_set_client_CA_list.3
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The list specified overrides the previous setting. The CAs listed do not become trusted (\fBlist\fR only contains the names, not the complete certificates); use \&\fISSL_CTX_load_verify_locations\fR\|(3) to additionally load them for verification. .PP If the list of acceptable CAs is compiled in a file, the \&\fISSL_load_client_CA_file\fR\|(3) function can be used to help importing the necessary data. .PP \&\fISSL_CTX_add_client_CA()\fR and \fISSL_add_client_CA()\fR can be used to add additional items the list of client CAs. If no list was specified before using \&\fISSL_CTX_set_client_CA_list()\fR or \fISSL_set_client_CA_list()\fR, a new client \&\s-1CA\s0 list for \fBctx\fR or \fBssl\fR (as appropriate) is opened. .PP These functions are only useful for \s-1TLS/SSL\s0 servers. .SH "RETURN VALUES" .IX Header "RETURN VALUES" \&\fISSL_CTX_set_client_CA_list()\fR and \fISSL_set_client_CA_list()\fR do not return diagnostic information. .PP \&\fISSL_CTX_add_client_CA()\fR and \fISSL_add_client_CA()\fR have the following return values: .IP "\&0" 4 .IX Item "0" A failure while manipulating the \s-1STACK_OF\s0(X509_NAME) object occurred or the X509_NAME could not be extracted from \fBcacert\fR. Check the error stack to find out the reason. .IP "\&1" 4 .IX Item "1" The operation succeeded. .SH "EXAMPLES" .IX Header "EXAMPLES" Scan all certificates in \fBCAfile\fR and list them as acceptable CAs: .PP .Vb 1 \& SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile)); .Ve .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fIssl\fR\|(3), \&\fISSL_get_client_CA_list\fR\|(3), \&\fISSL_load_client_CA_file\fR\|(3), \&\fISSL_CTX_load_verify_locations\fR\|(3)