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ssize_t gnutls_record_send(gnutls_session_t session, const void * data,
is a gnutls_session_t structure.
const void * data
contains the data to send
is the length of the data
This function has the similar semantics with send(). The only differ-
ence 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 full information. You can
replace the default push function by using gnutls_transport_set_ptr2()
with a call to send() with a MSG_DONTWAIT flag if blocking is a prob-
lem. If the EINTR is returned by the internal push function (the
default is send()) 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 same parameters; alternatively you could pro-
vide a NULL pointer for data, and 0 for size. cf.
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
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 maxi-
mum record size.
Report bugs to <firstname.lastname@example.org>.
Home page: http://www.gnutls.org
Copyright (C) 2001-2014 Free Software Foundation, Inc.
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.