gnutls\_transport\_set\_errno\_function(3) gnutls gnutls\_transport\_set\_errno\_function(3)

# [NAME](#NAME)

gnutls\_transport\_set\_errno\_function - API function

# [SYNOPSIS](#SYNOPSIS)

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

**void gnutls\_transport\_set\_errno\_function(gnutls\_session\_t session, gnutls\_errno\_func errno\_func);**

# [ARGUMENTS](#ARGUMENTS)

[gnutls\_session\_t session](#gnutls_session_t)

is a **gnutls\_session\_t** type.

[gnutls\_errno\_func errno\_func](#gnutls_errno_func)

a callback function similar to **write()**

# [DESCRIPTION](#DESCRIPTION)

This is the function where you set a function to retrieve errno after a failed push or pull operation.

*errno\_func* is of the form, int (\*gnutls\_errno\_func)(gnutls\_transport\_ptr\_t); and should return the errno.

# [SINCE](#SINCE)

2.12.0

# [REPORTING BUGS](#REPORTING_BUGS)

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

# [COPYRIGHT](#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](#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/](https://www.gnutls.org/manual/)

3.8.13 gnutls

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Document: gnutls_transport_set_errno_function(3) from gnutls 3.8.13-r1 (Chainguard OS)
Source: https://gitlab.com/gnutls/gnutls