Manpages - gnutls_record_recv.3

gnutls_record_recv - API function

#include <gnutls/gnutls.h>

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

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

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 gnutls_record_get_direction().

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 .

Report bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org

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