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gnutls_record_send(3) gnutls gnutls_record_send(3)
gnutls_record_send - API function
ssize_t gnutls_record_send(gnutls_session_t session, const void * data,
is a gnutls_session_t type.
const void * data
contains the data to send
is the length of the data
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, or provide a NULL pointer for data and 0 for
data_size , in order to write the same data as before. If you wish to
discard the previous data instead of retrying, you must call
gnutls_record_discard_queued() before calling this function with
different parameters. Note that the latter works only on special
transports (e.g., UDP). 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.
Report bugs to <email@example.com>.
Home page: https://www.gnutls.org
Copyright (C) 2001- 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.
The full documentation for gnutls is maintained as a Texinfo manual.
If the /usr/local/share/doc/gnutls/ directory does not contain the HTML
gnutls 3.7.7 gnutls_record_send(3)