---
name: "gnutls_record_recv"
section: "3"
platform: "linux"
package: "gnutls"
version: "3.8.13-3"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/gnutls_record_recv"
---

# gnutls\_record\_recv(3)

API function

## NAME

gnutls\_record\_recv - API function

## SYNOPSIS

**#include \<gnutls/gnutls.h\>**

**ssize\_t gnutls\_record\_recv(gnutls\_session\_t** *session***, void \*** *data***, size\_t** *data\_size***);**

## ARGUMENTS

- 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

## DESCRIPTION

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()**.

## RETURNS

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* .

## REPORTING BUGS

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

## COPYRIGHT

Copyright © 2001-2023 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.

## SEE ALSO

The full documentation for **gnutls** is maintained as a Texinfo manual. If the /usr/share/doc/gnutls/ directory does not contain the HTML form visit

- https://www.gnutls.org/manual/