---
name: "gnutls_transport_set_global_errno"
section: "3"
platform: "linux"
package: "gnutls-doc"
version: "2.8.6-1+squeeze3"
release: "Debian 6.0 (Squeeze)"
platforms: ["linux"]
url: "https://new.carta.tech/gnutls_transport_set_global_errno"
---

# gnutls\_transport\_set\_global\_errno(3)

API function

## NAME

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

## SYNOPSIS

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

**void gnutls\_transport\_set\_global\_errno(int** *err***);**

## ARGUMENTS

- int err

  error value to store in global errno variable.

## DESCRIPTION

Store *err* in the global errno variable.  Useful values for *err* is EAGAIN and EINTR, other values are treated will be treated as real errors in the push/pull function.

This function is useful in replacement push/pull functions set by gnutls\_transport\_set\_push\_function and gnutls\_transport\_set\_pullpush\_function under Windows, where the replacement push/pull may not have access to the same *errno* variable that is used by GnuTLS (e.g., the application is linked to msvcr71.dll and gnutls is linked to msvcrt.dll).

Whether this function is thread safe or not depends on whether the global variable errno is thread safe, some system libraries make it a thread-local variable.  When feasible, using the guaranteed thread-safe **gnutls\_transport\_set\_errno()** may be better.

## 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.