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Diffstat (limited to 'src/lib/libcrypto/man/BIO_f_null.3')
| -rw-r--r-- | src/lib/libcrypto/man/BIO_f_null.3 | 99 |
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diff --git a/src/lib/libcrypto/man/BIO_f_null.3 b/src/lib/libcrypto/man/BIO_f_null.3 deleted file mode 100644 index 687d991b52..0000000000 --- a/src/lib/libcrypto/man/BIO_f_null.3 +++ /dev/null | |||
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| 1 | .\" $OpenBSD: BIO_f_null.3,v 1.12 2023/04/11 16:58:43 schwarze Exp $ | ||
| 2 | .\" full merge up to: OpenSSL e9b77246 Jan 20 19:58:49 2017 +0100 | ||
| 3 | .\" | ||
| 4 | .\" This file was written by Dr. Stephen Henson <steve@openssl.org>. | ||
| 5 | .\" Copyright (c) 2000 The OpenSSL Project. All rights reserved. | ||
| 6 | .\" | ||
| 7 | .\" Redistribution and use in source and binary forms, with or without | ||
| 8 | .\" modification, are permitted provided that the following conditions | ||
| 9 | .\" are met: | ||
| 10 | .\" | ||
| 11 | .\" 1. Redistributions of source code must retain the above copyright | ||
| 12 | .\" notice, this list of conditions and the following disclaimer. | ||
| 13 | .\" | ||
| 14 | .\" 2. Redistributions in binary form must reproduce the above copyright | ||
| 15 | .\" notice, this list of conditions and the following disclaimer in | ||
| 16 | .\" the documentation and/or other materials provided with the | ||
| 17 | .\" distribution. | ||
| 18 | .\" | ||
| 19 | .\" 3. All advertising materials mentioning features or use of this | ||
| 20 | .\" software must display the following acknowledgment: | ||
| 21 | .\" "This product includes software developed by the OpenSSL Project | ||
| 22 | .\" for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | ||
| 23 | .\" | ||
| 24 | .\" 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | ||
| 25 | .\" endorse or promote products derived from this software without | ||
| 26 | .\" prior written permission. For written permission, please contact | ||
| 27 | .\" openssl-core@openssl.org. | ||
| 28 | .\" | ||
| 29 | .\" 5. Products derived from this software may not be called "OpenSSL" | ||
| 30 | .\" nor may "OpenSSL" appear in their names without prior written | ||
| 31 | .\" permission of the OpenSSL Project. | ||
| 32 | .\" | ||
| 33 | .\" 6. Redistributions of any form whatsoever must retain the following | ||
| 34 | .\" acknowledgment: | ||
| 35 | .\" "This product includes software developed by the OpenSSL Project | ||
| 36 | .\" for use in the OpenSSL Toolkit (http://www.openssl.org/)" | ||
| 37 | .\" | ||
| 38 | .\" THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
| 39 | .\" EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 40 | .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| 41 | .\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | ||
| 42 | .\" ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| 43 | .\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
| 44 | .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| 45 | .\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 46 | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
| 47 | .\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| 48 | .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
| 49 | .\" OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| 50 | .\" | ||
| 51 | .Dd $Mdocdate: April 11 2023 $ | ||
| 52 | .Dt BIO_F_NULL 3 | ||
| 53 | .Os | ||
| 54 | .Sh NAME | ||
| 55 | .Nm BIO_f_null | ||
| 56 | .\" .Nm BIO_f_nbio_test is intentionally undocumented | ||
| 57 | .\" because it exposes absurd functionality that is unused | ||
| 58 | .\" except in openssl(1) s_client/s_server -nbio_test. | ||
| 59 | .Nd null filter | ||
| 60 | .Sh SYNOPSIS | ||
| 61 | .In openssl/bio.h | ||
| 62 | .Ft const BIO_METHOD * | ||
| 63 | .Fo BIO_f_null | ||
| 64 | .Fa void | ||
| 65 | .Fc | ||
| 66 | .Sh DESCRIPTION | ||
| 67 | .Fn BIO_f_null | ||
| 68 | returns the null filter BIO method. | ||
| 69 | This is a filter BIO that does nothing. | ||
| 70 | As may be apparent, a null filter BIO is not particularly useful. | ||
| 71 | .Pp | ||
| 72 | All requests to a null filter BIO are passed through to the next BIO | ||
| 73 | in the chain: this means that a BIO chain containing a null filter BIO | ||
| 74 | behaves just as though the BIO was not there. | ||
| 75 | .Pp | ||
| 76 | A chain containing a null filter BIO cannot be copied with | ||
| 77 | .Xr BIO_dup_chain 3 , | ||
| 78 | and any attempt to do so fails and returns | ||
| 79 | .Dv NULL . | ||
| 80 | .Sh RETURN VALUES | ||
| 81 | .Fn BIO_f_null | ||
| 82 | returns the null filter BIO method. | ||
| 83 | .Pp | ||
| 84 | When called on a null filter BIO object, | ||
| 85 | .Xr BIO_method_type 3 | ||
| 86 | returns the constant | ||
| 87 | .Dv BIO_TYPE_NULL_FILTER | ||
| 88 | and | ||
| 89 | .Xr BIO_method_name 3 | ||
| 90 | returns a pointer to the static string | ||
| 91 | .Qq NULL filter , | ||
| 92 | not to be confused with a NUL string nor with a | ||
| 93 | .Dv NULL pointer . | ||
| 94 | .Sh SEE ALSO | ||
| 95 | .Xr BIO_new 3 | ||
| 96 | .Sh HISTORY | ||
| 97 | .Fn BIO_f_null | ||
| 98 | first appeared in SSLeay 0.8.0 and has been available since | ||
| 99 | .Ox 2.4 . | ||