1ERR_GET_LIB(3)                      OpenSSL                     ERR_GET_LIB(3)
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NAME

6       ERR_GET_LIB, ERR_GET_FUNC, ERR_GET_REASON, ERR_FATAL_ERROR - get
7       information from error codes
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SYNOPSIS

10        #include <openssl/err.h>
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12        int ERR_GET_LIB(unsigned long e);
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14        int ERR_GET_FUNC(unsigned long e);
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16        int ERR_GET_REASON(unsigned long e);
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18        int ERR_FATAL_ERROR(unsigned long e);
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DESCRIPTION

21       The error code returned by ERR_get_error() consists of a library
22       number, function code and reason code. ERR_GET_LIB(), ERR_GET_FUNC()
23       and ERR_GET_REASON() can be used to extract these.
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25       ERR_FATAL_ERROR() indicates whether a given error code is a fatal
26       error.
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28       The library number and function code describe where the error occurred,
29       the reason code is the information about what went wrong.
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31       Each sub-library of OpenSSL has a unique library number; function and
32       reason codes are unique within each sub-library.  Note that different
33       libraries may use the same value to signal different functions and
34       reasons.
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36       ERR_R_... reason codes such as ERR_R_MALLOC_FAILURE are globally
37       unique. However, when checking for sub-library specific reason codes,
38       be sure to also compare the library number.
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40       ERR_GET_LIB(), ERR_GET_FUNC(), ERR_GET_REASON(), and ERR_FATAL_ERROR()
41        are macros.
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RETURN VALUES

44       The library number, function code, reason code, and whether the error
45       is fatal, respectively.
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SEE ALSO

48       ERR_get_error(3)
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HISTORY

51       ERR_GET_LIB(), ERR_GET_FUNC() and ERR_GET_REASON() are available in all
52       versions of OpenSSL.
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55       Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
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57       Licensed under the OpenSSL license (the "License").  You may not use
58       this file except in compliance with the License.  You can obtain a copy
59       in the file LICENSE in the source distribution or at
60       <https://www.openssl.org/source/license.html>.
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641.1.1l                            2021-09-15                    ERR_GET_LIB(3)
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