gnutls_record_recv — reads data from the TLS record protocol
#include <gnutls/gnutls.h>
ssize_t gnutls_record_recv( |
gnutls_session_t | session, |
| void * | data, | |
| size_t | sizeofdata); |
is a gnutls_session_t structure.
the buffer that the data will be read into
the number of requested bytes
This function has the similar semantics with recv(). The only difference is that is
accepts a GNUTLS session, and uses different error codes.
In the special case that a server requests a renegotiation, the client may receive an error code of GNUTLS_E_REHANDSHAKE. This message may be simply ignored, replied with an alert containing NO_RENEGOTIATION, or replied with a new handshake, depending on the client's will.
If EINTR is returned by the
internal push 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
gnutls_record_get_direction().
A server may also receive GNUTLS_E_REHANDSHAKE when a client has initiated a handshake. In that case the server can only initiate a handshake or terminate the connection.
the number of bytes received and zero on EOF. A negative
error code is returned in case of an error. The number of
bytes received might be less than sizeofdata.
The full documentation for gnutls is maintained as a Texinfo manual. If the info and gnutls programs are properly installed at your site, the command
info gnutls
should give you access to the complete manual.
| COPYRIGHT |
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Copyright © 2008 Free Software Foundation. Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. |