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openssl/doc/man3/ERR_GET_LIB.pod

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Document ERR library.
2000-02-01 09:37:00 +08:00
=pod
=head1 NAME
Fix various doc nits. find-doc-nits warns if you don't give a "what to do flag" Don't use regexps for section names, just strings: More consistency. Rename "COMMAND OPTIONS" to OPTIONS. Fix a couple of other nit-level things. Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2076)
2016-12-13 00:14:40 +08:00
ERR_GET_LIB, ERR_GET_FUNC, ERR_GET_REASON, ERR_FATAL_ERROR
- get information from error codes
Document ERR library.
2000-02-01 09:37:00 +08:00
=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);
Restore the ERR_FATAL_ERROR() macro Commit 0cd0a820abc6124cf8e176fa92d620a2abf9e419 removed this macro along with many unused function and reason codes; ERR_FATAL_ERROR() was not used in the tree, but did have external consumers. Add it back to restore the API compatibility and avoid breaking applications for no internal benefit. Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2049)
2016-12-09 02:01:31 +08:00
int ERR_FATAL_ERROR(unsigned long e);
Document ERR library.
2000-02-01 09:37:00 +08:00
=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.
Restore the ERR_FATAL_ERROR() macro Commit 0cd0a820abc6124cf8e176fa92d620a2abf9e419 removed this macro along with many unused function and reason codes; ERR_FATAL_ERROR() was not used in the tree, but did have external consumers. Add it back to restore the API compatibility and avoid breaking applications for no internal benefit. Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2049)
2016-12-09 02:01:31 +08:00
ERR_FATAL_ERROR() indicates whether a given error code is a fatal error.
Document ERR library.
2000-02-01 09:37:00 +08:00
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.
Restore the ERR_FATAL_ERROR() macro Commit 0cd0a820abc6124cf8e176fa92d620a2abf9e419 removed this macro along with many unused function and reason codes; ERR_FATAL_ERROR() was not used in the tree, but did have external consumers. Add it back to restore the API compatibility and avoid breaking applications for no internal benefit. Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2049)
2016-12-09 02:01:31 +08:00
ERR_GET_LIB(), ERR_GET_FUNC(), ERR_GET_REASON(), and ERR_FATAL_ERROR()
are macros.
Document ERR library.
2000-02-01 09:37:00 +08:00
=head1 RETURN VALUES
Restore the ERR_FATAL_ERROR() macro Commit 0cd0a820abc6124cf8e176fa92d620a2abf9e419 removed this macro along with many unused function and reason codes; ERR_FATAL_ERROR() was not used in the tree, but did have external consumers. Add it back to restore the API compatibility and avoid breaking applications for no internal benefit. Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2049)
2016-12-09 02:01:31 +08:00
The library number, function code, reason code, and whether the error
is fatal, respectively.
Document ERR library.
2000-02-01 09:37:00 +08:00
=head1 SEE ALSO
Remove ref to err(7), update copyright. Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2825)
2017-03-02 23:07:21 +08:00
L<ERR_get_error(3)>
Document ERR library.
2000-02-01 09:37:00 +08:00
=head1 HISTORY
ERR_GET_LIB(), ERR_GET_FUNC() and ERR_GET_REASON() are available in
Remove SSLeay history, etc., from docs If something was "present in all versions" of SSLeay, or if it was added to a version of SSLeay (and therefore predates OpenSSL), remove mention of it. Documentation history now starts with OpenSSL. Remove mention of all history before OpenSSL 0.9.8, inclusive. Remove all AUTHOR sections. Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-10-28 01:40:11 +08:00
all versions of OpenSSL.
Document ERR library.
2000-02-01 09:37:00 +08:00
Add copyright to manpages Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-18 23:44:05 +08:00
=head1 COPYRIGHT
Remove ref to err(7), update copyright. Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2825)
2017-03-02 23:07:21 +08:00
Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
Add copyright to manpages Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-18 23:44:05 +08:00
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
L<https://www.openssl.org/source/license.html>.
=cut