Adding upstream version 4.22.0.upstream/4.22.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 134 insertions, 0 deletions

diff --git a/upstream/archlinux/man3/MDC2_Init.3ssl b/upstream/archlinux/man3/MDC2_Init.3ssl
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+.\"
+.\" Standard preamble:
+.\" ========================================================================
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+.\"
+.\" If the F register is >0, we'll generate index entries on stderr for
+.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
+.\" entries marked with X<> in POD.  Of course, you'll have to process the
+.\" output yourself in some meaningful fashion.
+.\"
+.\" Avoid warning from groff about undefined register 'F'.
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+.        if !\nF==2 \{\
+.            nr % 0
+.            nr F 2
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+.\}
+.rr rF
+.\" ========================================================================
+.\"
+.IX Title "MDC2_INIT 3ssl"
+.TH MDC2_INIT 3ssl 2024-01-30 3.2.1 OpenSSL
+.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
+.\" way too many mistakes in technical documents.
+.if n .ad l
+.nh
+.SH NAME
+MDC2, MDC2_Init, MDC2_Update, MDC2_Final \- MDC2 hash function
+.SH SYNOPSIS
+.IX Header "SYNOPSIS"
+.Vb 1
+\& #include <openssl/mdc2.h>
+.Ve
+.PP
+The following functions have been deprecated since OpenSSL 3.0, and can be
+hidden entirely by defining \fBOPENSSL_API_COMPAT\fR with a suitable version value,
+see \fBopenssl_user_macros\fR\|(7):
+.PP
+.Vb 2
+\& unsigned char *MDC2(const unsigned char *d, unsigned long n,
+\&                     unsigned char *md);
+\&
+\& int MDC2_Init(MDC2_CTX *c);
+\& int MDC2_Update(MDC2_CTX *c, const unsigned char *data,
+\&                 unsigned long len);
+\& int MDC2_Final(unsigned char *md, MDC2_CTX *c);
+.Ve
+.SH DESCRIPTION
+.IX Header "DESCRIPTION"
+All of the functions described on this page are deprecated.
+Applications should instead use \fBEVP_DigestInit_ex\fR\|(3), \fBEVP_DigestUpdate\fR\|(3)
+and \fBEVP_DigestFinal_ex\fR\|(3).
+.PP
+MDC2 is a method to construct hash functions with 128 bit output from
+block ciphers.  These functions are an implementation of MDC2 with
+DES.
+.PP
+\&\fBMDC2()\fR computes the MDC2 message digest of the \fBn\fR
+bytes at \fBd\fR and places it in \fBmd\fR (which must have space for
+MDC2_DIGEST_LENGTH == 16 bytes of output). If \fBmd\fR is NULL, the digest
+is placed in a static array.
+.PP
+The following functions may be used if the message is not completely
+stored in memory:
+.PP
+\&\fBMDC2_Init()\fR initializes a \fBMDC2_CTX\fR structure.
+.PP
+\&\fBMDC2_Update()\fR can be called repeatedly with chunks of the message to
+be hashed (\fBlen\fR bytes at \fBdata\fR).
+.PP
+\&\fBMDC2_Final()\fR places the message digest in \fBmd\fR, which must have space
+for MDC2_DIGEST_LENGTH == 16 bytes of output, and erases the \fBMDC2_CTX\fR.
+.PP
+Applications should use the higher level functions
+\&\fBEVP_DigestInit\fR\|(3) etc. instead of calling the
+hash functions directly.
+.SH "RETURN VALUES"
+.IX Header "RETURN VALUES"
+\&\fBMDC2()\fR returns a pointer to the hash value.
+.PP
+\&\fBMDC2_Init()\fR, \fBMDC2_Update()\fR and \fBMDC2_Final()\fR return 1 for success, 0 otherwise.
+.SH "CONFORMING TO"
+.IX Header "CONFORMING TO"
+ISO/IEC 10118\-2:2000 Hash-Function 2, with DES as the underlying block cipher.
+.SH "SEE ALSO"
+.IX Header "SEE ALSO"
+\&\fBEVP_DigestInit\fR\|(3)
+.SH HISTORY
+.IX Header "HISTORY"
+All of these functions were deprecated in OpenSSL 3.0.
+.SH COPYRIGHT
+.IX Header "COPYRIGHT"
+Copyright 2000\-2020 The OpenSSL Project Authors. All Rights Reserved.
+.PP
+Licensed under the Apache License 2.0 (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
+<https://www.openssl.org/source/license.html>.