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.\" ========================================================================
.\"
.IX Title "BIO_GET_EX_NEW_INDEX 3ossl"
.TH BIO_GET_EX_NEW_INDEX 3ossl "2023-09-19" "3.0.11" "OpenSSL"
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
BIO_get_ex_new_index, BIO_set_ex_data, BIO_get_ex_data,
BIO_set_app_data, BIO_get_app_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,
EC_KEY_get_ex_new_index, EC_KEY_set_ex_data, EC_KEY_get_ex_data,
ENGINE_get_ex_new_index, ENGINE_set_ex_data, ENGINE_get_ex_data,
EVP_PKEY_get_ex_new_index, EVP_PKEY_set_ex_data, EVP_PKEY_get_ex_data,
RSA_get_ex_new_index, RSA_set_ex_data, RSA_get_ex_data,
RSA_set_app_data, RSA_get_app_data,
SSL_get_ex_new_index, SSL_set_ex_data, SSL_get_ex_data,
SSL_set_app_data, SSL_get_app_data,
SSL_CTX_get_ex_new_index, SSL_CTX_set_ex_data, SSL_CTX_get_ex_data,
SSL_CTX_set_app_data, SSL_CTX_get_app_data,
SSL_SESSION_get_ex_new_index, SSL_SESSION_set_ex_data, SSL_SESSION_get_ex_data,
SSL_SESSION_set_app_data, SSL_SESSION_get_app_data,
UI_get_ex_new_index, UI_set_ex_data, UI_get_ex_data,
UI_set_app_data, UI_get_app_data,
X509_STORE_CTX_get_ex_new_index, X509_STORE_CTX_set_ex_data, X509_STORE_CTX_get_ex_data,
X509_STORE_CTX_set_app_data, X509_STORE_CTX_get_app_data,
X509_STORE_get_ex_new_index, X509_STORE_set_ex_data, X509_STORE_get_ex_data,
X509_get_ex_new_index, X509_set_ex_data, X509_get_ex_data
\&\- application\-specific data
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/x509.h>
\&
\& int TYPE_get_ex_new_index(long argl, void *argp,
\& CRYPTO_EX_new *new_func,
\& CRYPTO_EX_dup *dup_func,
\& CRYPTO_EX_free *free_func);
\&
\& int TYPE_set_ex_data(TYPE *d, int idx, void *arg);
\&
\& void *TYPE_get_ex_data(const TYPE *d, int idx);
\&
\& #define TYPE_set_app_data(TYPE *d, void *arg)
\& #define TYPE_get_app_data(TYPE *d)
.Ve
.PP
The following functions have been deprecated since OpenSSL 3.0, and can be
hidden entirely by defining \fB\s-1OPENSSL_API_COMPAT\s0\fR with a suitable version value,
see \fBopenssl_user_macros\fR\|(7):
.PP
.Vb 10
\& int DH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
\& CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
\& int DH_set_ex_data(DH *type, int idx, void *arg);
\& void *DH_get_ex_data(DH *type, int idx);
\& int DSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
\& CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
\& int DSA_set_ex_data(DSA *type, int idx, void *arg);
\& void *DSA_get_ex_data(DSA *type, int idx);
\& int EC_KEY_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
\& CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
\& int EC_KEY_set_ex_data(EC_KEY *type, int idx, void *arg);
\& void *EC_KEY_get_ex_data(EC_KEY *type, int idx);
\& int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
\& CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
\& int RSA_set_ex_data(RSA *type, int idx, void *arg);
\& void *RSA_get_ex_data(RSA *type, int idx);
\& int RSA_set_app_data(RSA *type, void *arg);
\& void *RSA_get_app_data(RSA *type);
\& int ENGINE_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
\& CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
\& int ENGINE_set_ex_data(ENGINE *type, int idx, void *arg);
\& void *ENGINE_get_ex_data(ENGINE *type, int idx);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
In the description here, \fI\s-1TYPE\s0\fR is used a placeholder
for any of the OpenSSL datatypes listed in \fBCRYPTO_get_ex_new_index\fR\|(3).
.PP
All functions with a \fI\s-1TYPE\s0\fR of \fB\s-1DH\s0\fR, \fB\s-1DSA\s0\fR, \fB\s-1RSA\s0\fR and \fB\s-1EC_KEY\s0\fR are deprecated.
Applications should instead use \fBEVP_PKEY_set_ex_data()\fR,
\&\fBEVP_PKEY_get_ex_data()\fR and \fBEVP_PKEY_get_ex_new_index()\fR.
.PP
All functions with a \fI\s-1TYPE\s0\fR of \fB\s-1ENGINE\s0\fR are deprecated.
Applications using engines should be replaced by providers.
.PP
These functions handle application-specific data for OpenSSL data
structures.
.PP
\&\fBTYPE_get_ex_new_index()\fR is a macro that calls \fBCRYPTO_get_ex_new_index()\fR
with the correct \fBindex\fR value.
.PP
\&\fBTYPE_set_ex_data()\fR is a function that calls \fBCRYPTO_set_ex_data()\fR with
an offset into the opaque exdata part of the \s-1TYPE\s0 object.
.PP
\&\fBTYPE_get_ex_data()\fR is a function that calls \fBCRYPTO_get_ex_data()\fR with
an offset into the opaque exdata part of the \s-1TYPE\s0 object.
.PP
For compatibility with previous releases, the exdata index of zero is
reserved for \*(L"application data.\*(R" There are two convenience functions for
this.
\&\fBTYPE_set_app_data()\fR is a macro that invokes \fBTYPE_set_ex_data()\fR with
\&\fBidx\fR set to zero.
\&\fBTYPE_get_app_data()\fR is a macro that invokes \fBTYPE_get_ex_data()\fR with
\&\fBidx\fR set to zero.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBTYPE_get_ex_new_index()\fR returns a new index on success or \-1 on error.
.PP
\&\fBTYPE_set_ex_data()\fR returns 1 on success or 0 on error.
.PP
\&\fBTYPE_get_ex_data()\fR returns the application data or \s-1NULL\s0 if an error occurred.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBCRYPTO_get_ex_new_index\fR\|(3).
.SH "HISTORY"
.IX Header "HISTORY"
The functions \fBDH_get_ex_new_index()\fR, \fBDH_set_ex_data()\fR, \fBDH_get_ex_data()\fR,
\&\fBDSA_get_ex_new_index()\fR, \fBDSA_set_ex_data()\fR, \fBDSA_get_ex_data()\fR,
\&\fBEC_KEY_get_ex_new_index()\fR, \fBEC_KEY_set_ex_data()\fR, \fBEC_KEY_get_ex_data()\fR,
\&\fBENGINE_get_ex_new_index()\fR, \fBENGINE_set_ex_data()\fR, \fBENGINE_get_ex_data()\fR,
\&\fBRSA_get_ex_new_index()\fR, \fBRSA_set_ex_data()\fR, \fBRSA_get_ex_data()\fR,
\&\fBRSA_set_app_data()\fR and \fBRSA_get_app_data()\fR were deprecated in OpenSSL 3.0.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2015\-2021 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file \s-1LICENSE\s0 in the source distribution or at
<https://www.openssl.org/source/license.html>.
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