1=pod
2
3=head1 NAME
4
5ASN1_STRING_TABLE, ASN1_STRING_TABLE_add, ASN1_STRING_TABLE_get,
6ASN1_STRING_TABLE_cleanup - ASN1_STRING_TABLE manipulation functions
7
8=head1 SYNOPSIS
9
10 #include <openssl/asn1.h>
11
12 typedef struct asn1_string_table_st ASN1_STRING_TABLE;
13
14 int ASN1_STRING_TABLE_add(int nid, long minsize, long maxsize,
15                           unsigned long mask, unsigned long flags);
16 ASN1_STRING_TABLE *ASN1_STRING_TABLE_get(int nid);
17 void ASN1_STRING_TABLE_cleanup(void);
18
19=head1 DESCRIPTION
20
21=head2 Types
22
23B<ASN1_STRING_TABLE> is a table which holds string information
24(basically minimum size, maximum size, type and etc) for a NID object.
25
26=head2 Functions
27
28ASN1_STRING_TABLE_add() adds a new B<ASN1_STRING_TABLE> item into the
29local ASN1 string table based on the I<nid> along with other parameters.
30
31If the item is already in the table, fields of B<ASN1_STRING_TABLE> are
32updated (depending on the values of those parameters, e.g., I<minsize>
33and I<maxsize> >= 0, I<mask> and I<flags> != 0). If the I<nid> is standard,
34a copy of the standard B<ASN1_STRING_TABLE> is created and updated with
35other parameters.
36
37ASN1_STRING_TABLE_get() searches for an B<ASN1_STRING_TABLE> item based
38on I<nid>. It will search the local table first, then the standard one.
39
40ASN1_STRING_TABLE_cleanup() frees all B<ASN1_STRING_TABLE> items added
41by ASN1_STRING_TABLE_add().
42
43=head1 RETURN VALUES
44
45ASN1_STRING_TABLE_add() returns 1 on success, 0 if an error occurred.
46
47ASN1_STRING_TABLE_get() returns a valid B<ASN1_STRING_TABLE> structure
48or NULL if nothing is found.
49
50ASN1_STRING_TABLE_cleanup() does not return a value.
51
52=head1 SEE ALSO
53
54L<ERR_get_error(3)>
55
56=head1 COPYRIGHT
57
58Copyright 2017-2020 The OpenSSL Project Authors. All Rights Reserved.
59
60Licensed under the Apache License 2.0 (the "License").  You may not use
61this file except in compliance with the License.  You can obtain a copy
62in the file LICENSE in the source distribution or at
63L<https://www.openssl.org/source/license.html>.
64
65=cut
66