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.\" ========================================================================
.\"
.IX Title "X509_NAME_ENTRY_GET_OBJECT 3"
.TH X509_NAME_ENTRY_GET_OBJECT 3 "2023-09-11" "1.1.1w" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
X509_NAME_ENTRY_get_object, X509_NAME_ENTRY_get_data, X509_NAME_ENTRY_set_object, X509_NAME_ENTRY_set_data, X509_NAME_ENTRY_create_by_txt, X509_NAME_ENTRY_create_by_NID, X509_NAME_ENTRY_create_by_OBJ \- X509_NAME_ENTRY utility functions
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/x509.h>
\&
\& ASN1_OBJECT *X509_NAME_ENTRY_get_object(const X509_NAME_ENTRY *ne);
\& ASN1_STRING *X509_NAME_ENTRY_get_data(const X509_NAME_ENTRY *ne);
\&
\& int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, const ASN1_OBJECT *obj);
\& int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type,
\&                              const unsigned char *bytes, int len);
\&
\& X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne, const char *field,
\&                                                int type, const unsigned char *bytes,
\&                                                int len);
\& X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid,
\&                                                int type, const unsigned char *bytes,
\&                                                int len);
\& X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne,
\&                                                const ASN1_OBJECT *obj, int type,
\&                                                const unsigned char *bytes, int len);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBX509_NAME_ENTRY_get_object()\fR retrieves the field name of \fBne\fR in
and \fB\s-1ASN1_OBJECT\s0\fR structure.
.PP
\&\fBX509_NAME_ENTRY_get_data()\fR retrieves the field value of \fBne\fR in
and \fB\s-1ASN1_STRING\s0\fR structure.
.PP
\&\fBX509_NAME_ENTRY_set_object()\fR sets the field name of \fBne\fR to \fBobj\fR.
.PP
\&\fBX509_NAME_ENTRY_set_data()\fR sets the field value of \fBne\fR to string type
\&\fBtype\fR and value determined by \fBbytes\fR and \fBlen\fR.
.PP
\&\fBX509_NAME_ENTRY_create_by_txt()\fR, \fBX509_NAME_ENTRY_create_by_NID()\fR
and \fBX509_NAME_ENTRY_create_by_OBJ()\fR create and return an
\&\fBX509_NAME_ENTRY\fR structure.
.SH "NOTES"
.IX Header "NOTES"
\&\fBX509_NAME_ENTRY_get_object()\fR and \fBX509_NAME_ENTRY_get_data()\fR can be
used to examine an \fBX509_NAME_ENTRY\fR function as returned by
\&\fBX509_NAME_get_entry()\fR for example.
.PP
\&\fBX509_NAME_ENTRY_create_by_txt()\fR, \fBX509_NAME_ENTRY_create_by_OBJ()\fR,
\&\fBX509_NAME_ENTRY_create_by_NID()\fR and \fBX509_NAME_ENTRY_set_data()\fR
are seldom used in practice because \fBX509_NAME_ENTRY\fR structures
are almost always part of \fBX509_NAME\fR structures and the
corresponding \fBX509_NAME\fR functions are typically used to
create and add new entries in a single operation.
.PP
The arguments of these functions support similar options to the similarly
named ones of the corresponding \fBX509_NAME\fR functions such as
\&\fBX509_NAME_add_entry_by_txt()\fR. So for example \fBtype\fR can be set to
\&\fB\s-1MBSTRING_ASC\s0\fR but in the case of \fBX509_set_data()\fR the field name must be
set first so the relevant field information can be looked up internally.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBX509_NAME_ENTRY_get_object()\fR returns a valid \fB\s-1ASN1_OBJECT\s0\fR structure if it is
set or \s-1NULL\s0 if an error occurred.
.PP
\&\fBX509_NAME_ENTRY_get_data()\fR returns a valid \fB\s-1ASN1_STRING\s0\fR structure if it is set
or \s-1NULL\s0 if an error occurred.
.PP
\&\fBX509_NAME_ENTRY_set_object()\fR and \fBX509_NAME_ENTRY_set_data()\fR return 1 on success
or 0 on error.
.PP
\&\fBX509_NAME_ENTRY_create_by_txt()\fR, \fBX509_NAME_ENTRY_create_by_NID()\fR and
\&\fBX509_NAME_ENTRY_create_by_OBJ()\fR return a valid \fBX509_NAME_ENTRY\fR on success or
\&\s-1NULL\s0 if an error occurred.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBERR_get_error\fR\|(3), \fBd2i_X509_NAME\fR\|(3),
\&\fBOBJ_nid2obj\fR\|(3)
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2002\-2018 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the OpenSSL license (the \*(L"License\*(R").  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file \s-1LICENSE\s0 in the source distribution or at
<https://www.openssl.org/source/license.html>.