gnutls_error_is_fatal - API function

int error is a GnuTLS error code, a negative error code

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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).

gnutls_error_is_fatal - API function

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

Non-zero value on fatal errors or zero on non-fatal.

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/ gnutls 3.8.9 gnutls_error_is_fatal(3)