SSL_get_ex_data_X509_STORE_CTX_idx(3) - NetBSD Manual Pages

SSL_get_ex_data_X509_STORE_CSOpLenSSLex_data_X509_STORE_CTX_idx(3)



NAME

       SSL_get_ex_data_X509_STORE_CTX_idx - get ex_data index to
       access SSL structure from X509_STORE_CTX


LIBRARY

       libcrypto, -lcrypto


SYNOPSIS

        #include <openssl/ssl.h>

        int SSL_get_ex_data_X509_STORE_CTX_idx(void);



DESCRIPTION

       SSL_get_ex_data_X509_STORE_CTX_idx() returns the index
       number under which the pointer to the SSL object is stored
       into the X509_STORE_CTX object.


NOTES

       Whenever a X509_STORE_CTX object is created for the veri-
       fication of the peers certificate during a handshake, a
       pointer to the SSL object is stored into the
       X509_STORE_CTX object to identify the connection affected.
       To retrieve this pointer the X509_STORE_CTX_get_ex_data()
       function can be used with the correct index. This index is
       globally the same for all X509_STORE_CTX objects and can
       be retrieved using SSL_get_ex_data_X509_STORE_CTX_idx().
       The index value is set when
       SSL_get_ex_data_X509_STORE_CTX_idx() is first called
       either by the application program directly or indirectly
       during other SSL setup functions or during the handshake.

       The value depends on other index values defined for
       X509_STORE_CTX objects before the SSL index is created.


RETURN VALUES

       >=0 The index value to access the pointer.

       <0  An error occurred, check the error stack for a
           detailed error message.


EXAMPLES

       The index returned from
       SSL_get_ex_data_X509_STORE_CTX_idx() allows to access the
       SSL object for the connection to be accessed during the
       verify_callback() when checking the peers certificate.
       Please check the example in SSL_CTX_set_verify(3),


SEE ALSO

       ssl(3), SSL_CTX_set_verify(3), CRYPTO_set_ex_data(3)







2001-04-12                    0.9.6g                            1