openssl/doc/man3/SSL_SESSION_get0_hostname.pod
Dr. Matthias St. Pierre df75c2bfcd man: harmonize the various formulations in the HISTORY sections
While stereotyped repetitions are frowned upon in literature, they
serve a useful purpose in manual pages, because it is easier for
the user to find certain information if it is always presented in
the same way. For that reason, this commit harmonizes the varying
formulations in the HISTORY section about which functions, flags,
etc. were added in which OpenSSL version.

It also attempts to make the pod files more grep friendly by
avoiding to insert line breaks between the symbol names and the
corresponding version number in which they were introduced
(wherever possible). Some punctuation and typographical errors
were fixed on the way.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7854)
2018-12-15 22:45:39 +01:00

74 lines
2.3 KiB
Text

=pod
=head1 NAME
SSL_SESSION_get0_hostname,
SSL_SESSION_set1_hostname,
SSL_SESSION_get0_alpn_selected,
SSL_SESSION_set1_alpn_selected
- get and set SNI and ALPN data ssociated with a session
=head1 SYNOPSIS
#include <openssl/ssl.h>
const char *SSL_SESSION_get0_hostname(const SSL_SESSION *s);
int SSL_SESSION_set1_hostname(SSL_SESSION *s, const char *hostname);
void SSL_SESSION_get0_alpn_selected(const SSL_SESSION *s,
const unsigned char **alpn,
size_t *len);
int SSL_SESSION_set1_alpn_selected(SSL_SESSION *s, const unsigned char *alpn,
size_t len);
=head1 DESCRIPTION
SSL_SESSION_get0_hostname() retrieves the SNI value that was sent by the
client when the session was created, or NULL if no value was sent.
The value returned is a pointer to memory maintained within B<s> and
should not be free'd.
SSL_SESSION_set1_hostname() sets the SNI value for the hostname to a copy of
the string provided in hostname.
SSL_SESSION_get0_alpn_selected() retrieves the selected ALPN protocol for this
session and its associated length in bytes. The returned value of B<*alpn> is a
pointer to memory maintained within B<s> and should not be free'd.
SSL_SESSION_set1_alpn_selected() sets the ALPN protocol for this session to the
value in B<alpn> which should be of length B<len> bytes. A copy of the input
value is made, and the caller retains ownership of the memory pointed to by
B<alpn>.
=head1 RETURN VALUES
SSL_SESSION_get0_hostname() returns either a string or NULL based on if there
is the SNI value sent by client.
SSL_SESSION_set1_hostname() returns 1 on success or 0 on error.
SSL_SESSION_set1_alpn_selected() returns 1 on success or 0 on error.
=head1 SEE ALSO
L<ssl(7)>,
L<d2i_SSL_SESSION(3)>,
L<SSL_SESSION_get_time(3)>,
L<SSL_SESSION_free(3)>
=head1 HISTORY
The SSL_SESSION_set1_hostname(), SSL_SESSION_get0_alpn_selected() and
SSL_SESSION_set1_alpn_selected() functions were added in OpenSSL 1.1.1.
=head1 COPYRIGHT
Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
L<https://www.openssl.org/source/license.html>.
=cut