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51 lines
1.3 KiB
51 lines
1.3 KiB
=pod |
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=head1 NAME |
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ERR_GET_LIB, ERR_GET_FUNC, ERR_GET_REASON - get library, function and |
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reason code |
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=head1 SYNOPSIS |
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#include <openssl/err.h> |
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int ERR_GET_LIB(unsigned long e); |
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int ERR_GET_FUNC(unsigned long e); |
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int ERR_GET_REASON(unsigned long e); |
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=head1 DESCRIPTION |
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The error code returned by ERR_get_error() consists of a library |
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number, function code and reason code. ERR_GET_LIB(), ERR_GET_FUNC() |
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and ERR_GET_REASON() can be used to extract these. |
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The library number and function code describe where the error |
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occurred, the reason code is the information about what went wrong. |
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Each sub-library of OpenSSL has a unique library number; function and |
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reason codes are unique within each sub-library. Note that different |
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libraries may use the same value to signal different functions and |
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reasons. |
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B<ERR_R_...> reason codes such as B<ERR_R_MALLOC_FAILURE> are globally |
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unique. However, when checking for sub-library specific reason codes, |
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be sure to also compare the library number. |
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ERR_GET_LIB(), ERR_GET_FUNC() and ERR_GET_REASON() are macros. |
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=head1 RETURN VALUES |
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The library number, function code and reason code respectively. |
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=head1 SEE ALSO |
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L<err(3)|err(3)>, L<ERR_get_error(3)|ERR_get_error(3)> |
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=head1 HISTORY |
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ERR_GET_LIB(), ERR_GET_FUNC() and ERR_GET_REASON() are available in |
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all versions of SSLeay and OpenSSL. |
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=cut
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