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<p><a name="__index__"></a></p>
<ul>
<li><a href="#name">NAME</a></li>
<li><a href="#synopsis">SYNOPSIS</a></li>
<li><a href="#description">DESCRIPTION</a></li>
<li><a href="#notes">NOTES</a></li>
<li><a href="#return_values">RETURN VALUES</a></li>
<li><a href="#examples">EXAMPLES</a></li>
<li><a href="#bugs">BUGS</a></li>
<li><a href="#see_also">SEE ALSO</a></li>
<li><a href="#copyright">COPYRIGHT</a></li>
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<p>
</p>
<hr />
<h1><a name="name">NAME</a></h1>
<p>X509_NAME_add_entry_by_txt, X509_NAME_add_entry_by_OBJ, X509_NAME_add_entry_by_NID,
X509_NAME_add_entry, X509_NAME_delete_entry - X509_NAME modification functions</p>
<p>
</p>
<hr />
<h1><a name="synopsis">SYNOPSIS</a></h1>
<pre>
#include <openssl/x509.h></pre>
<pre>
int X509_NAME_add_entry_by_txt(X509_NAME *name, const char *field, int type,
const unsigned char *bytes, int len, int loc, int set);</pre>
<pre>
int X509_NAME_add_entry_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj, int type,
const unsigned char *bytes, int len, int loc, int set);</pre>
<pre>
int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type,
const unsigned char *bytes, int len, int loc, int set);</pre>
<pre>
int X509_NAME_add_entry(X509_NAME *name, const X509_NAME_ENTRY *ne, int loc, int set);</pre>
<pre>
X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc);</pre>
<p>
</p>
<hr />
<h1><a name="description">DESCRIPTION</a></h1>
<p>X509_NAME_add_entry_by_txt(), X509_NAME_add_entry_by_OBJ() and
X509_NAME_add_entry_by_NID() add a field whose name is defined
by a string <strong>field</strong>, an object <strong>obj</strong> or a NID <strong>nid</strong> respectively.
The field value to be added is in <strong>bytes</strong> of length <strong>len</strong>. If
<strong>len</strong> is -1 then the field length is calculated internally using
strlen(bytes).</p>
<p>The type of field is determined by <strong>type</strong> which can either be a
definition of the type of <strong>bytes</strong> (such as <strong>MBSTRING_ASC</strong>) or a
standard ASN1 type (such as <strong>V_ASN1_IA5STRING</strong>). The new entry is
added to a position determined by <strong>loc</strong> and <strong>set</strong>.</p>
<p>X509_NAME_add_entry() adds a copy of <strong>X509_NAME_ENTRY</strong> structure <strong>ne</strong>
to <strong>name</strong>. The new entry is added to a position determined by <strong>loc</strong>
and <strong>set</strong>. Since a copy of <strong>ne</strong> is added <strong>ne</strong> must be freed up after
the call.</p>
<p>X509_NAME_delete_entry() deletes an entry from <strong>name</strong> at position
<strong>loc</strong>. The deleted entry is returned and must be freed up.</p>
<p>
</p>
<hr />
<h1><a name="notes">NOTES</a></h1>
<p>The use of string types such as <strong>MBSTRING_ASC</strong> or <strong>MBSTRING_UTF8</strong>
is strongly recommended for the <strong>type</strong> parameter. This allows the
internal code to correctly determine the type of the field and to
apply length checks according to the relevant standards. This is
done using ASN1_STRING_set_by_NID().</p>
<p>If instead an ASN1 type is used no checks are performed and the
supplied data in <strong>bytes</strong> is used directly.</p>
<p>In X509_NAME_add_entry_by_txt() the <strong>field</strong> string represents
the field name using OBJ_txt2obj(field, 0).</p>
<p>The <strong>loc</strong> and <strong>set</strong> parameters determine where a new entry should
be added. For almost all applications <strong>loc</strong> can be set to -1 and <strong>set</strong>
to 0. This adds a new entry to the end of <strong>name</strong> as a single valued
RelativeDistinguishedName (RDN).</p>
<p><strong>loc</strong> actually determines the index where the new entry is inserted:
if it is -1 it is appended.</p>
<p><strong>set</strong> determines how the new type is added. If it is zero a
new RDN is created.</p>
<p>If <strong>set</strong> is -1 or 1 it is added to the previous or next RDN
structure respectively. This will then be a multivalued RDN:
since multivalues RDNs are very seldom used <strong>set</strong> is almost
always set to zero.</p>
<p>
</p>
<hr />
<h1><a name="return_values">RETURN VALUES</a></h1>
<p>X509_NAME_add_entry_by_txt(), X509_NAME_add_entry_by_OBJ(),
X509_NAME_add_entry_by_NID() and X509_NAME_add_entry() return 1 for
success of 0 if an error occurred.</p>
<p>X509_NAME_delete_entry() returns either the deleted <strong>X509_NAME_ENTRY</strong>
structure of <strong>NULL</strong> if an error occurred.</p>
<p>
</p>
<hr />
<h1><a name="examples">EXAMPLES</a></h1>
<p>Create an <strong>X509_NAME</strong> structure:</p>
<p>"C=UK, O=Disorganized Organization, CN=Joe Bloggs"</p>
<pre>
X509_NAME *nm;</pre>
<pre>
nm = X509_NAME_new();
if (nm == NULL)
/* Some error */
if (!X509_NAME_add_entry_by_txt(nm, "C", MBSTRING_ASC,
"UK", -1, -1, 0))
/* Error */
if (!X509_NAME_add_entry_by_txt(nm, "O", MBSTRING_ASC,
"Disorganized Organization", -1, -1, 0))
/* Error */
if (!X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC,
"Joe Bloggs", -1, -1, 0))
/* Error */</pre>
<p>
</p>
<hr />
<h1><a name="bugs">BUGS</a></h1>
<p><strong>type</strong> can still be set to <strong>V_ASN1_APP_CHOOSE</strong> to use a
different algorithm to determine field types. Since this form does
not understand multicharacter types, performs no length checks and
can result in invalid field types its use is strongly discouraged.</p>
<p>
</p>
<hr />
<h1><a name="see_also">SEE ALSO</a></h1>
<p><em>ERR_get_error(3)</em>, <em>d2i_X509_NAME(3)</em></p>
<p>
</p>
<hr />
<h1><a name="copyright">COPYRIGHT</a></h1>
<p>Copyright 2002-2019 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>
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