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=head1 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

=head1 SYNOPSIS

 #include <openssl/x509.h>

 ASN1_OBJECT * X509_NAME_ENTRY_get_object(X509_NAME_ENTRY *ne);
 ASN1_STRING * X509_NAME_ENTRY_get_data(X509_NAME_ENTRY *ne);

 int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, 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,unsigned char *bytes, int len);
 X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne, ASN1_OBJECT *obj, int type, const unsigned char *bytes, int len);

=head1 DESCRIPTION

X509_NAME_ENTRY_get_object() retrieves the field name of B<ne> in
and B<ASN1_OBJECT> structure.

X509_NAME_ENTRY_get_data() retrieves the field value of B<ne> in
and B<ASN1_STRING> structure.

X509_NAME_ENTRY_set_object() sets the field name of B<ne> to B<obj>.

X509_NAME_ENTRY_set_data() sets the field value of B<ne> to string type
B<type> and value determined by B<bytes> and B<len>.

X509_NAME_ENTRY_create_by_txt(), X509_NAME_ENTRY_create_by_NID()
and X509_NAME_ENTRY_create_by_OBJ() create and return an 
B<X509_NAME_ENTRY> structure.

=head1 NOTES

X509_NAME_ENTRY_get_object() and X509_NAME_ENTRY_get_data() can be
used to examine an B<X509_NAME_ENTRY> function as returned by 
X509_NAME_get_entry() for example.

X509_NAME_ENTRY_create_by_txt(), X509_NAME_ENTRY_create_by_NID(),
and X509_NAME_ENTRY_create_by_OBJ() create and return an 

X509_NAME_ENTRY_create_by_txt(), X509_NAME_ENTRY_create_by_OBJ(),
X509_NAME_ENTRY_create_by_NID() and X509_NAME_ENTRY_set_data()
are seldom used in practice because B<X509_NAME_ENTRY> structures
are almost always part of B<X509_NAME> structures and the
corresponding B<X509_NAME> functions are typically used to
create and add new entries in a single operation.

The arguments of these functions support similar options to the similarly
named ones of the corresponding B<X509_NAME> functions such as
X509_NAME_add_entry_by_txt(). So for example B<type> can be set to
B<MBSTRING_ASC> but in the case of X509_set_data() the field name must be
set first so the relevant field information can be looked up internally.

=head1 RETURN VALUES

=head1 SEE ALSO

L<ERR_get_error(3)|ERR_get_error(3)>, L<d2i_X509_NAME(3)|d2i_X509_NAME(3)>,
L<OBJ_nid2obj(3),OBJ_nid2obj(3)>

=head1 HISTORY

TBA

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