This function has the similar semantics with send(). The only
difference is that it accepts a GnuTLS session, and uses different
error codes. Note that if the send buffer is full, send() will block
this function. See the send() documentation for more information.
You can replace the default push function which is send(), by using
If the EINTR is returned by the internal push function then
GNUTLS_E_INTERRUPTED will be returned. If GNUTLS_E_INTERRUPTED or
GNUTLS_E_AGAIN is returned, you must call this function again, with
the exact same parameters; alternatively you could provide a NULL
pointer for data, and 0 for size. cf. gnutls_record_get_direction().
Note that in DTLS this function will return the GNUTLS_E_LARGE_PACKET
error code if the send data exceed the data MTU value - as returned
by gnutls_dtls_get_data_mtu(). The errno value EMSGSIZE also maps to
GNUTLS_E_LARGE_PACKET. Note that since 3.2.13 this function can be
called under cork in DTLS mode, and will refuse to send data over the
MTU size by returning GNUTLS_E_LARGE_PACKET.
The number of bytes sent, or a negative error code. The number of
bytes sent might be less than data_size . The maximum number of
bytes this function can send in a single call depends on the
negotiated maximum record size.
This page is part of the GnuTLS (GnuTLS Transport Layer Security
Library) project. Information about the project can be found at
⟨http://www.gnutls.org/⟩. If you have a bug report for this manual
page, send it to firstname.lastname@example.org.. This page was obtained from the
tarball gnutls-3.5.9.tar.xz fetched from
⟨http://www.gnutls.org/download.html⟩ on 2017-03-13. If you discover
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you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail
gnutls 3.5.9 gnutls_record_send(3)