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X509_ALGOR_get0.html
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<?xml version="1.0" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>X509_ALGOR_dup</title> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <link rev="made" href="mailto:root@localhost" /> </head> <body> <ul id="index"> <li><a href="#NAME">NAME</a></li> <li><a href="#SYNOPSIS">SYNOPSIS</a></li> <li><a href="#DESCRIPTION">DESCRIPTION</a></li> <li><a href="#RETURN-VALUES">RETURN VALUES</a></li> <li><a href="#HISTORY">HISTORY</a></li> <li><a href="#COPYRIGHT">COPYRIGHT</a></li> </ul> <h1 id="NAME">NAME</h1> <p>X509_ALGOR_dup, X509_ALGOR_set0, X509_ALGOR_get0, X509_ALGOR_set_md, X509_ALGOR_cmp, X509_ALGOR_copy - AlgorithmIdentifier functions</p> <h1 id="SYNOPSIS">SYNOPSIS</h1> <pre><code> #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);</code></pre> <h1 id="DESCRIPTION">DESCRIPTION</h1> <p>X509_ALGOR_dup() returns a copy of <b>alg</b>.</p> <p>X509_ALGOR_set0() sets the algorithm OID of <b>alg</b> to <b>aobj</b> and the associated parameter type to <b>ptype</b> with value <b>pval</b>. If <b>ptype</b> is <b>V_ASN1_UNDEF</b> the parameter is omitted, otherwise <b>ptype</b> and <b>pval</b> have the same meaning as the <b>type</b> and <b>value</b> parameters to ASN1_TYPE_set(). All the supplied parameters are used internally so must <b>NOT</b> be freed after this call.</p> <p>X509_ALGOR_get0() is the inverse of X509_ALGOR_set0(): it returns the algorithm OID in <b>*paobj</b> and the associated parameter in <b>*pptype</b> and <b>*ppval</b> from the <b>AlgorithmIdentifier</b> <b>alg</b>.</p> <p>X509_ALGOR_set_md() sets the <b>AlgorithmIdentifier</b> <b>alg</b> to appropriate values for the message digest <b>md</b>.</p> <p>X509_ALGOR_cmp() compares <b>a</b> and <b>b</b> and returns 0 if they have identical encodings and nonzero otherwise.</p> <p>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).</p> <h1 id="RETURN-VALUES">RETURN VALUES</h1> <p>X509_ALGOR_dup() returns a valid <b>X509_ALGOR</b> structure or NULL if an error occurred.</p> <p>X509_ALGOR_set0() and X509_ALGOR_copy() return 1 on success or 0 on error.</p> <p>X509_ALGOR_get0() and X509_ALGOR_set_md() return no values.</p> <p>X509_ALGOR_cmp() returns 0 if the two parameters have identical encodings and nonzero otherwise.</p> <h1 id="HISTORY">HISTORY</h1> <p>The X509_ALGOR_copy() was added in 1.1.1e.</p> <h1 id="COPYRIGHT">COPYRIGHT</h1> <p>Copyright 2002-2020 The OpenSSL Project Authors. All Rights Reserved.</p> <p>Licensed under the OpenSSL license (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 <a href="https://www.openssl.org/source/license.html">https://www.openssl.org/source/license.html</a>.</p> </body> </html>