If a GnuTLS function returns a negative error code you may feed
that value to this function to see if the error condition is
fatal to a TLS session (i.e., must be terminated).
Note that you may also want to check the error code manually,
since some non-fatal errors to the protocol (such as a warning
alert or a rehandshake request) may be fatal for your program.
This function is only useful if you are dealing with errors from
functions that relate to a TLS session (e.g., record layer or
handshake layer handling functions).
This page is part of the GnuTLS (GnuTLS Transport Layer Security
Library) project. Information about the project can be found at
⟨http://www.gnutls.org/⟩. If you have a bug report for this
manual page, send it to email@example.com. This page was obtained
from the tarball gnutls-3.7.2.tar.xz fetched from
⟨http://www.gnutls.org/download.html⟩ on 2021-08-27. If you
discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for
the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original
manual page), send a mail to firstname.lastname@example.org
gnutls 3.7.2 gnutls_error_is_fatal(3)