文件操作 - BIO_s_null.pod
返回文件管理
返回主菜单
删除本文件
文件: /usr/local/src/openssl-1.1.1w/doc/man3/BIO_s_null.pod
编辑文件内容
=pod =head1 NAME BIO_s_null - null data sink =head1 SYNOPSIS #include <openssl/bio.h> const BIO_METHOD *BIO_s_null(void); =head1 DESCRIPTION BIO_s_null() returns the null sink BIO method. Data written to the null sink is discarded, reads return EOF. =head1 NOTES A null sink BIO behaves in a similar manner to the Unix /dev/null device. A null bio can be placed on the end of a chain to discard any data passed through it. A null sink is useful if, for example, an application wishes to digest some data by writing through a digest bio but not send the digested data anywhere. Since a BIO chain must normally include a source/sink BIO this can be achieved by adding a null sink BIO to the end of the chain =head1 RETURN VALUES BIO_s_null() returns the null sink BIO method. =head1 COPYRIGHT Copyright 2000-2016 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
修改文件时间
将文件时间修改为当前时间的前一年
删除文件