mirror of https://github.com/openssl/openssl.git
68 lines
1.8 KiB
Plaintext
68 lines
1.8 KiB
Plaintext
=pod
|
|
|
|
=head1 NAME
|
|
|
|
ERR_GET_LIB, ERR_GET_FUNC, ERR_GET_REASON, ERR_FATAL_ERROR
|
|
- get information from error codes
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
#include <openssl/err.h>
|
|
|
|
int ERR_GET_LIB(unsigned long e);
|
|
|
|
int ERR_GET_FUNC(unsigned long e);
|
|
|
|
int ERR_GET_REASON(unsigned long e);
|
|
|
|
int ERR_FATAL_ERROR(unsigned long e);
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
The error code returned by ERR_get_error() consists of a library
|
|
number, function code and reason code. ERR_GET_LIB(), ERR_GET_FUNC()
|
|
and ERR_GET_REASON() can be used to extract these.
|
|
|
|
ERR_FATAL_ERROR() indicates whether a given error code is a fatal error.
|
|
|
|
The library number and function code describe where the error
|
|
occurred, the reason code is the information about what went wrong.
|
|
|
|
Each sub-library of OpenSSL has a unique library number; function and
|
|
reason codes are unique within each sub-library. Note that different
|
|
libraries may use the same value to signal different functions and
|
|
reasons.
|
|
|
|
B<ERR_R_...> reason codes such as B<ERR_R_MALLOC_FAILURE> are globally
|
|
unique. However, when checking for sub-library specific reason codes,
|
|
be sure to also compare the library number.
|
|
|
|
ERR_GET_LIB(), ERR_GET_FUNC(), ERR_GET_REASON(), and ERR_FATAL_ERROR()
|
|
are macros.
|
|
|
|
=head1 RETURN VALUES
|
|
|
|
The library number, function code, reason code, and whether the error
|
|
is fatal, respectively.
|
|
Starting with OpenSSL 3.0.0, the function code is always set to zero.
|
|
|
|
=head1 SEE ALSO
|
|
|
|
L<ERR_get_error(3)>
|
|
|
|
=head1 HISTORY
|
|
|
|
ERR_GET_LIB(), ERR_GET_FUNC() and ERR_GET_REASON() are available in
|
|
all versions of OpenSSL.
|
|
|
|
=head1 COPYRIGHT
|
|
|
|
Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
|
|
|
|
Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
this file except in compliance with the License. You can obtain a copy
|
|
in the file LICENSE in the source distribution or at
|
|
L<https://www.openssl.org/source/license.html>.
|
|
|
|
=cut
|