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SSL_set_ex_data.3
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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" SSL_CTX_get_ex_data, SSL_CTX_set_ex_data, SSL_get_ex_data, SSL_set_ex_data \&\- Store and retrieve extra data from the SSL_CTX, SSL or SSL_SESSION .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& #include <openssl/ssl.h> \& \& void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx); \& \& int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg); \& \& void *SSL_get_ex_data(const SSL *s, int idx); \& \& int SSL_set_ex_data(SSL *s, int idx, void *arg); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" SSL*\fB_set_ex_data()\fR functions can be used to store arbitrary user data into the \&\fB\s-1SSL_CTX\s0\fR, or \fB\s-1SSL\s0\fR object. The user must supply a unique index which they can subsequently use to retrieve the data using SSL*\fB_get_ex_data()\fR. .PP For more detailed information see \fBCRYPTO_get_ex_data\fR\|(3) and \&\fBCRYPTO_set_ex_data\fR\|(3) which implement these functions and \&\fBCRYPTO_get_ex_new_index\fR\|(3) for generating a unique index. .SH "RETURN VALUES" .IX Header "RETURN VALUES" The SSL*\fB_set_ex_data()\fR functions return 1 if the item is successfully stored and 0 if it is not. The SSL*\fB_get_ex_data()\fR functions return the ex_data pointer if successful, otherwise \s-1NULL.\s0 .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBCRYPTO_get_ex_data\fR\|(3), \fBCRYPTO_set_ex_data\fR\|(3), \&\fBCRYPTO_get_ex_new_index\fR\|(3) .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2017 The OpenSSL Project Authors. All Rights Reserved. .PP Licensed under the OpenSSL license (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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