gnutls_record_recv(3) — Linux manual page


gnutls_record_recv(3)            gnutls            gnutls_record_recv(3)

NAME         top

       gnutls_record_recv - API function

SYNOPSIS         top

       #include <gnutls/gnutls.h>

       ssize_t gnutls_record_recv(gnutls_session_t session, void * data,
       size_t data_size);

ARGUMENTS         top

       gnutls_session_t session
                   is a gnutls_session_t type.

       void * data the buffer that the data will be read into

       size_t data_size
                   the number of requested bytes

DESCRIPTION         top

       This function has the similar semantics with recv().  The only
       difference is that it accepts a GnuTLS session, and uses
       different error codes.  In the special case that the peer
       requests a renegotiation, the caller will receive an error code
       of GNUTLS_E_REHANDSHAKE.  In case of a client, this message may
       be simply ignored, replied with an alert
       GNUTLS_A_NO_RENEGOTIATION, or replied with a new handshake,
       depending on the client's will. A server receiving this error
       code can only initiate a new handshake or terminate the session.

       If EINTR is returned by the internal pull function (the default
       is recv()) then GNUTLS_E_INTERRUPTED will be returned.  If
       GNUTLS_E_INTERRUPTED or GNUTLS_E_AGAIN is returned, you must call
       this function again to get the data.  See also

RETURNS         top

       The number of bytes received and zero on EOF (for stream
       connections).  A negative error code is returned in case of an
       error.  The number of bytes received might be less than the
       requested  data_size .

REPORTING BUGS         top

       Report bugs to <>.
       Home page:

COPYRIGHT         top

       Copyright © 2001-2023 Free Software Foundation, Inc., and others.
       Copying and distribution of this file, with or without
       modification, are permitted in any medium without royalty
       provided the copyright notice and this notice are preserved.

SEE ALSO         top

       The full documentation for gnutls is maintained as a Texinfo
       manual.  If the /usr/share/doc/gnutls/ directory does not contain
       the HTML form visit

COLOPHON         top

       This page is part of the GnuTLS (GnuTLS Transport Layer Security
       Library) project.  Information about the project can be found at
       ⟨⟩.  If you have a bug report for this
       manual page, send it to  This page was obtained
       from the tarball gnutls-3.8.2.tar.xz fetched from
       ⟨⟩ on 2023-12-22.  If you
       discover any rendering problems in this HTML version of the page,
       or you believe there is a better or more up-to-date source for
       the page, or you have corrections or improvements to the
       information in this COLOPHON (which is not part of the original
       manual page), send a mail to

gnutls                            3.8.2            gnutls_record_recv(3)