| =pod |
| |
| =head1 NAME |
| |
| X509_ALGOR_dup, |
| X509_ALGOR_set0, X509_ALGOR_get0, |
| X509_ALGOR_set_md, X509_ALGOR_cmp, |
| X509_ALGOR_copy - AlgorithmIdentifier functions |
| |
| =head1 SYNOPSIS |
| |
| #include <openssl/x509.h> |
| |
| X509_ALGOR *X509_ALGOR_dup(X509_ALGOR *alg); |
| int X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype, void *pval); |
| void X509_ALGOR_get0(const ASN1_OBJECT **paobj, int *pptype, |
| const void **ppval, const X509_ALGOR *alg); |
| void X509_ALGOR_set_md(X509_ALGOR *alg, const EVP_MD *md); |
| int X509_ALGOR_cmp(const X509_ALGOR *a, const X509_ALGOR *b); |
| int X509_ALGOR_copy(X509_ALGOR *dest, const X509_ALGOR *src); |
| |
| =head1 DESCRIPTION |
| |
| X509_ALGOR_dup() returns a copy of I<alg>. |
| |
| X509_ALGOR_set0() sets the algorithm OID of I<alg> to I<aobj> and the |
| associated parameter type to I<ptype> with value I<pval>. If I<ptype> is |
| B<V_ASN1_UNDEF> the parameter is omitted, otherwise I<ptype> and I<pval> have |
| the same meaning as the I<type> and I<value> parameters to ASN1_TYPE_set(). |
| All the supplied parameters are used internally so must B<NOT> be freed after |
| this call succeeded; |
| otherwise ownership remains with the caller and I<alg> remains untouched. |
| |
| X509_ALGOR_get0() is the inverse of X509_ALGOR_set0(): it returns the |
| algorithm OID in I<*paobj> and the associated parameter in I<*pptype> |
| and I<*ppval> from the B<AlgorithmIdentifier> I<alg>. |
| |
| X509_ALGOR_set_md() sets the B<AlgorithmIdentifier> I<alg> to appropriate |
| values for the message digest I<md>. |
| |
| X509_ALGOR_cmp() compares I<a> and I<b> and returns 0 if they have identical |
| encodings and nonzero otherwise. |
| |
| X509_ALGOR_copy() copies the source values into the dest structs; making |
| a duplicate of each (and free any thing pointed to from within *dest). |
| |
| =head1 RETURN VALUES |
| |
| X509_ALGOR_dup() returns a valid B<X509_ALGOR> structure or NULL if an error |
| occurred. |
| |
| X509_ALGOR_set0() and X509_ALGOR_copy() return 1 on success or 0 on error. |
| |
| X509_ALGOR_get0() and X509_ALGOR_set_md() return no values. |
| |
| X509_ALGOR_cmp() returns 0 if the two parameters have identical encodings and |
| nonzero otherwise. |
| |
| =head1 HISTORY |
| |
| The X509_ALGOR_copy() was added in 1.1.1e. |
| |
| =head1 COPYRIGHT |
| |
| Copyright 2002-2022 The OpenSSL Project Authors. All Rights Reserved. |
| |
| 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 |
| L<https://www.openssl.org/source/license.html>. |
| |
| =cut |