openssl/doc/man3/OPENSSL_fork_prepare.pod
Xiaoyin Liu a970b14f8d Fix typo in documents
I scanned all files in the doc folder with a spell checker (https://github.com/EWSoftware/VSSpellChecker).
This patch (hopefully) corrected all spell errors that it found.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/4065)
2017-08-01 09:30:11 +10:00

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1.9 KiB
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=pod
=head1 NAME
OPENSSL_fork_prepare,
OPENSSL_fork_parent,
OPENSSL_fork_child
- OpenSSL fork handlers
=head1 SYNOPSIS
#include <openssl/crypto.h>
void OPENSSL_fork_prepare(void);
void OPENSSL_fork_parent(void);
void OPENSSL_fork_child(void);
=head1 DESCRIPTION
OpenSSL has state that should be reset when a process forks. For example,
the entropy pool used to generate random numbers (and therefore encryption
keys) should not be shared across multiple programs.
The OPENSSL_fork_prepare(), OPENSSL_fork_parent(), and OPENSSL_fork_child()
functions are used to reset this internal state.
Platforms without fork(2) will probably not need to use these functions.
Platforms with fork(2) but without pthreads_atfork(3) will probably need
to call them manually, as described in the following paragraph. Platforms
such as Linux that have both functions will normally not need to call these
functions as the OpenSSL library will do so automatically.
L<OPENSSL_init_crypto(3)> will register these functions with the appropriate
hander, when the B<OPENSSL_INIT_ATFORK> flag is used. For other
applications, these functions can be called directly. They should be used
according to the calling sequence described by the pthreads_atfork(3)
documentation, which is summarized here. OPENSSL_fork_prepare() should
be called before a fork() is done. After the fork() returns, the parent
process should call OPENSSL_fork_parent() and the child process should
call OPENSSL_fork_child().
=head1 SEE ALSO
L<OPENSSL_init_crypto(3)>
=head1 HISTORY
These functions were added in OpenSSL 1.1.1.
=head1 COPYRIGHT
Copyright 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
L<https://www.openssl.org/source/license.html>.
=cut