NAME
gnutls_ia_recv - read data from the TLS/IA protocol
SYNOPSIS
#include <gnutls/extra.h>
ssize_t gnutls_ia_recv(gnutls_session_t session, char * data, size_t
sizeofdata);
ARGUMENTS
gnutls_session_t session
is a gnutls_session_t structure.
char * data the buffer that the data will be read into, must hold >= 12
bytes.
size_t sizeofdata
the number of requested bytes, must be >= 12.
DESCRIPTION
Receive TLS/IA data. This function has the similar semantics with
recv(). The only difference is that it accepts a GnuTLS session, and
uses different error codes.
If the server attempt to finish an application phase, this function
will return GNUTLS_E_WARNING_IA_IPHF_RECEIVED or
GNUTLS_E_WARNING_IA_FPHF_RECEIVED. The caller should then invoke
gnutls_ia_verify_endphase(), and if it runs the client side, also send
an endphase message of its own using gnutls_ia_endphase_send.
If EINTR is returned by the internal push function (the default is
code{recv()}) 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
provide a NULL pointer for data, and 0 for size.
RETURNS
The number of bytes received. A negative error code is returned in
case of an error. The GNUTLS_E_WARNING_IA_IPHF_RECEIVED and
GNUTLS_E_WARNING_IA_FPHF_RECEIVED errors are returned when an
application phase finished message has been sent by the server.
REPORTING BUGS
Report bugs to <bug-gnutls@gnu.org>. GnuTLS home page:
http://www.gnu.org/software/gnutls/ General help using GNU software:
http://www.gnu.org/gethelp/
COPYRIGHT
Copyright © 2008 Free Software Foundation.
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.
SEE ALSO
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.