6 X509_ALGOR_set0, X509_ALGOR_get0,
7 X509_ALGOR_set_md, X509_ALGOR_cmp,
8 X509_ALGOR_copy - AlgorithmIdentifier functions
12 #include <openssl/x509.h>
14 X509_ALGOR *X509_ALGOR_dup(X509_ALGOR *alg);
15 int X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype, void *pval);
16 void X509_ALGOR_get0(const ASN1_OBJECT **paobj, int *pptype,
17 const void **ppval, const X509_ALGOR *alg);
18 void X509_ALGOR_set_md(X509_ALGOR *alg, const EVP_MD *md);
19 int X509_ALGOR_cmp(const X509_ALGOR *a, const X509_ALGOR *b);
20 int X509_ALGOR_copy(X509_ALGOR *dest, const X509_ALGOR *src);
24 X509_ALGOR_dup() returns a copy of I<alg>.
26 X509_ALGOR_set0() sets the algorithm OID of I<alg> to I<aobj> and the
27 associated parameter type to I<ptype> with value I<pval>. If I<ptype> is
28 B<V_ASN1_UNDEF> the parameter is omitted, otherwise I<ptype> and I<pval> have
29 the same meaning as the I<type> and I<value> parameters to ASN1_TYPE_set().
30 All the supplied parameters are used internally so must B<NOT> be freed after
32 otherwise ownership remains with the caller and I<alg> remains untouched.
34 X509_ALGOR_get0() is the inverse of X509_ALGOR_set0(): it returns the
35 algorithm OID in I<*paobj> and the associated parameter in I<*pptype>
36 and I<*ppval> from the B<AlgorithmIdentifier> I<alg>.
38 X509_ALGOR_set_md() sets the B<AlgorithmIdentifier> I<alg> to appropriate
39 values for the message digest I<md>.
41 X509_ALGOR_cmp() compares I<a> and I<b> and returns 0 if they have identical
42 encodings and nonzero otherwise.
44 X509_ALGOR_copy() copies the source values into the dest structs; making
45 a duplicate of each (and free any thing pointed to from within *dest).
49 X509_ALGOR_dup() returns a valid B<X509_ALGOR> structure or NULL if an error
52 X509_ALGOR_set0() and X509_ALGOR_copy() return 1 on success or 0 on error.
54 X509_ALGOR_get0() and X509_ALGOR_set_md() return no values.
56 X509_ALGOR_cmp() returns 0 if the two parameters have identical encodings and
61 The X509_ALGOR_copy() was added in 1.1.1e.
65 Copyright 2002-2020 The OpenSSL Project Authors. All Rights Reserved.
67 Licensed under the Apache License 2.0 (the "License"). You may not use
68 this file except in compliance with the License. You can obtain a copy
69 in the file LICENSE in the source distribution or at
70 L<https://www.openssl.org/source/license.html>.