1X509_ALGOR_DUP(3)                   OpenSSL                  X509_ALGOR_DUP(3)
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NAME

6       X509_ALGOR_dup, X509_ALGOR_set0, X509_ALGOR_get0, X509_ALGOR_set_md,
7       X509_ALGOR_cmp, X509_ALGOR_copy - AlgorithmIdentifier functions
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SYNOPSIS

10        #include <openssl/x509.h>
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12        X509_ALGOR *X509_ALGOR_dup(X509_ALGOR *alg);
13        int X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype, void *pval);
14        void X509_ALGOR_get0(const ASN1_OBJECT **paobj, int *pptype,
15                             const void **ppval, const X509_ALGOR *alg);
16        void X509_ALGOR_set_md(X509_ALGOR *alg, const EVP_MD *md);
17        int X509_ALGOR_cmp(const X509_ALGOR *a, const X509_ALGOR *b);
18        int X509_ALGOR_copy(X509_ALGOR *dest, const X509_ALGOR *src);
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DESCRIPTION

21       X509_ALGOR_dup() returns a copy of alg.
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23       X509_ALGOR_set0() sets the algorithm OID of alg to aobj and the
24       associated parameter type to ptype with value pval. If ptype is
25       V_ASN1_UNDEF the parameter is omitted, otherwise ptype and pval have
26       the same meaning as the type and value parameters to ASN1_TYPE_set().
27       All the supplied parameters are used internally so must NOT be freed
28       after this call.
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30       X509_ALGOR_get0() is the inverse of X509_ALGOR_set0(): it returns the
31       algorithm OID in *paobj and the associated parameter in *pptype and
32       *ppval from the AlgorithmIdentifier alg.
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34       X509_ALGOR_set_md() sets the AlgorithmIdentifier alg to appropriate
35       values for the message digest md.
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37       X509_ALGOR_cmp() compares a and b and returns 0 if they have identical
38       encodings and nonzero otherwise.
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40       X509_ALGOR_copy() copies the source values into the dest structs;
41       making a duplicate of each (and free any thing pointed to from within
42       *dest).
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RETURN VALUES

45       X509_ALGOR_dup() returns a valid X509_ALGOR structure or NULL if an
46       error occurred.
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48       X509_ALGOR_set0() and X509_ALGOR_copy() return 1 on success or 0 on
49       error.
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51       X509_ALGOR_get0() and X509_ALGOR_set_md() return no values.
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53       X509_ALGOR_cmp() returns 0 if the two parameters have identical
54       encodings and nonzero otherwise.
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HISTORY

57       The X509_ALGOR_copy() was added in 1.1.1e.
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60       Copyright 2002-2020 The OpenSSL Project Authors. All Rights Reserved.
61
62       Licensed under the OpenSSL license (the "License").  You may not use
63       this file except in compliance with the License.  You can obtain a copy
64       in the file LICENSE in the source distribution or at
65       <https://www.openssl.org/source/license.html>.
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691.1.1q                            2022-07-07                 X509_ALGOR_DUP(3)
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