NAME

SSL_load_client_CA_file − Load certificate names from file

SYNOPSIS

#include <openssl/ssl.h>
STACK_OF(X509_NAME) ∗SSL_load_client_CA_file(
        const char ∗file );

DESCRIPTION

The SSL_load_client_CA_file() function reads certificates from file and returns a STACK_OF(X509_NAME) with the subject names found. 

NOTES

The SSL_load_client_CA_file() function reads a file of PEM formatted certificates and extracts the X509_NAMES of the certificates found. While the name suggests the specific usage as support for the SSL_CTX_set_client_CA_list() function, it is not limited to CA certificates. 

EXAMPLES

Load names of CAs from file and use it as a client CA list:

 SSL_CTX ∗ctx;
 STACK_OF(X509_NAME) ∗cert_names;
 ...
 cert_names = SSL_load_client_CA_file("/path/to/CAfile.pem");
 if (cert_names != NULL)
   SSL_CTX_set_client_CA_list(ctx, cert_names);
 else
   error_handling();
 ...

RETURN VALUES

The following return values can occur:

NULLThe operation failed, check out the error stack for the reason. 

Pointer to STACK_OF(X509_NAME)
Pointer to the subject names of the successfully read certificates.

SEE ALSO

Functions: ssl(3), SSL_CTX_set_client_CA_list(3)