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ERR_GET_LIB(3) Library Functions Manual ERR_GET_LIB(3)

ERR_GET_LIB, ERR_GET_FUNC, ERR_GET_REASON, ERR_FATAL_ERRORget library, function and reason codes for OpenSSL errors

#include <openssl/err.h>

ERR_GET_LIB(unsigned long e);

ERR_GET_FUNC(unsigned long e);

ERR_GET_REASON(unsigned long e);

ERR_FATAL_ERROR(unsigned long e);

The error code returned by ERR_get_error(3) consists of a library number, function code, and reason code. (), (), and () can be used to extract these.

The library number and function code describe where the error occurred, whereas 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.

() indicates whether a given error code is a fatal error.

These functions are implemented as macros.

ERR_GET_LIB(), ERR_GET_FUNC(), and ERR_GET_REASON() return the library number, function code, and reason code, respectively.

ERR_FATAL_ERROR() returns non-zero if the error is fatal or 0 otherwise.

ERR(3), ERR_get_error(3)

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

December 16, 2016 OpenBSD-6.2