SSL_GET_EX_DATA_X509_STORE_CSOSpLe_nGSESTL_EX_DATA_X509_STORE_CTX_IDX(3)
SSL_get_ex_data_X509_STORE_CTX_idx - get ex_data index to
access SSL structure from X509_STORE_CTX
#include <openssl/ssl.h>
int SSL_get_ex_data_X509_STORE_CTX_idx(void);
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.
Whenever a X509_STORE_CTX object is created for the verifi-
cation 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.
>=0 The index value to access the pointer.
<0 An error occurred, check the error stack for a detailed
error message.
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),
ssl(3), SSL_CTX_set_verify(3), CRYPTO_set_ex_data(3)
MirOS BSD #10-current 2005-02-05 1
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