1=pod 2 3=head1 NAME 4 5SSL_load_client_CA_file - load certificate names from file 6 7=head1 SYNOPSIS 8 9 #include <openssl/ssl.h> 10 11 STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file); 12 13=head1 DESCRIPTION 14 15SSL_load_client_CA_file() reads certificates from B<file> and returns 16a STACK_OF(X509_NAME) with the subject names found. 17 18=head1 NOTES 19 20SSL_load_client_CA_file() reads a file of PEM formatted certificates and 21extracts the X509_NAMES of the certificates found. While the name suggests 22the specific usage as support function for 23L<SSL_CTX_set_client_CA_list(3)|SSL_CTX_set_client_CA_list(3)>, 24it is not limited to CA certificates. 25 26=head1 EXAMPLES 27 28Load names of CAs from file and use it as a client CA list: 29 30 SSL_CTX *ctx; 31 STACK_OF(X509_NAME) *cert_names; 32 33 ... 34 cert_names = SSL_load_client_CA_file("/path/to/CAfile.pem"); 35 if (cert_names != NULL) 36 SSL_CTX_set_client_CA_list(ctx, cert_names); 37 else 38 error_handling(); 39 ... 40 41=head1 RETURN VALUES 42 43The following return values can occur: 44 45=over 4 46 47=item NULL 48 49The operation failed, check out the error stack for the reason. 50 51=item Pointer to STACK_OF(X509_NAME) 52 53Pointer to the subject names of the successfully read certificates. 54 55=back 56 57=head1 SEE ALSO 58 59L<ssl(3)|ssl(3)>, 60L<SSL_CTX_set_client_CA_list(3)|SSL_CTX_set_client_CA_list(3)> 61 62=cut 63