1gnutls_record_send_early_data(3)    gnutls    gnutls_record_send_early_data(3)
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NAME

6       gnutls_record_send_early_data - API function
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SYNOPSIS

9       #include <gnutls/gnutls.h>
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11       ssize_t  gnutls_record_send_early_data(gnutls_session_t  session, const
12       void * data, size_t data_size);
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ARGUMENTS

15       gnutls_session_t session
16                   is a gnutls_session_t type.
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18       const void * data
19                   contains the data to send
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21       size_t data_size
22                   is the length of the data
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DESCRIPTION

25       This function can be used by a client to send data early in  the  hand‐
26       shake  processes  when resuming a session.  This is used to implement a
27       zero-roundtrip  (0-RTT)  mode.   It   has   the   same   semantics   as
28       gnutls_record_send().
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30       There  may  be  a  limit to the amount of data sent as early data.  Use
31       gnutls_record_get_max_early_data_size() to check  the  limit.   If  the
32       limit exceeds, this function returns GNUTLS_E_RECORD_LIMIT_REACHED.
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RETURNS

35       The  number  of  bytes  sent,  or a negative error code.  The number of
36       bytes sent might be less than  data_size .  The maximum number of bytes
37       this function can send in a single call depends on the negotiated maxi‐
38       mum record size.
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SINCE

41       3.6.5
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REPORTING BUGS

44       Report bugs to <bugs@gnutls.org>.
45       Home page: https://www.gnutls.org
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49       Copyright © 2001-2023 Free Software Foundation, Inc., and others.
50       Copying and distribution of this file, with  or  without  modification,
51       are  permitted in any medium without royalty provided the copyright no‐
52       tice and this notice are preserved.
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SEE ALSO

55       The full documentation for gnutls is maintained as  a  Texinfo  manual.
56       If  the /usr/share/doc/gnutls/ directory does not contain the HTML form
57       visit
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59       https://www.gnutls.org/manual/
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61gnutls                               3.8.2    gnutls_record_send_early_data(3)
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