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=head1 NAME

BIO_get_ex_new_index, BIO_set_ex_data, BIO_get_ex_data,
ENGINE_get_ex_new_index, ENGINE_set_ex_data, ENGINE_get_ex_data,
UI_get_ex_new_index, UI_set_ex_data, UI_get_ex_data,
X509_get_ex_new_index, X509_set_ex_data, X509_get_ex_data,
X509_STORE_get_ex_new_index, X509_STORE_set_ex_data, X509_STORE_get_ex_data,
X509_STORE_CTX_get_ex_new_index, X509_STORE_CTX_set_ex_data, X509_STORE_CTX_get_ex_data,
DH_get_ex_new_index, DH_set_ex_data, DH_get_ex_data,
DSA_get_ex_new_index, DSA_set_ex_data, DSA_get_ex_data,
ECDH_get_ex_new_index, ECDH_set_ex_data, ECDH_get_ex_data,
ECDSA_get_ex_new_index, ECDSA_set_ex_data, ECDSA_get_ex_data,
RSA_get_ex_new_index, RSA_set_ex_data, RSA_get_ex_data
- application-specific data

=head1 SYNOPSIS

The synopsis below is for the X509 structure, but is the same for all
crypto structures:

 #include <openssl/x509.h>

 int X509_get_ex_new_index(long argl, void *argp,
		CRYPTO_EX_new *new_func,
		CRYPTO_EX_dup *dup_func,
		CRYPTO_EX_free *free_func);

 int X509_set_ex_data(X509 *d, int idx, void *arg);

 void *X509_get_ex_data(X509 *d, int idx);

=head1 DESCRIPTION

These functions handle application-specific data for OpenSSL crypto
structures.

For details, see L<CRYPTO_get_ex_new_index(3)>.

=head1 SEE ALSO

L<CRYPTO_get_ex_new_index(3)>.

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