ERR_GET_LIB - Online Linux Manual PageSection : 3
Updated : 2021-03-26
Source : 1.1.1k
Note : OpenSSL

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NAMEERR_GET_LIB, ERR_GET_FUNC, ERR_GET_REASON, ERR_FATAL_ERROR ​− get information from error codes

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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);

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DESCRIPTIONThe 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. ​ERR_R_... reason codes such as 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.

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RETURN VALUESThe library number, function code, reason code, and whether the error is fatal, respectively.

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SEE ALSO​ERR_get_error (3)

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HISTORY​ERR_GET_LIB(), ERR_GET_FUNC() and ERR_GET_REASON() are available in all versions of OpenSSL.

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COPYRIGHTCopyright 2000−2017 The OpenSSL Project Authors. All Rights Reserved. Licensed under the OpenSSL license (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 <https://www.openssl.org/source/license.html>. 0

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