projects / thirdparty / openssl.git / blame
| Commit | Line | Data |
|---|---|---|
| 1d39620b RL |
1 | =pod |
| 2 | ||
| 3 | =head1 NAME | |
| 4 | ||
| 5 | DER_w_begin_sequence, DER_w_end_sequence | |
| 6 | - internal DER writers for DER constructed elements | |
| 7 | ||
| 8 | =head1 SYNOPSIS | |
| 9 | ||
| 10 | #include "internal/der.h" | |
| 11 | ||
| 12 | int DER_w_begin_sequence(WPACKET *pkt, int tag); | |
| 13 | int DER_w_end_sequence(WPACKET *pkt, int tag); | |
| 14 | ||
| 15 | =head1 DESCRIPTION | |
| 16 | ||
| 17 | All functions described here are wrappers for constructed structures, | |
| 18 | i.e. the ASN.1 SEQUENCE, SET and CHOICE specifications. They all come | |
| 19 | in pairs, as noted by the function names containing the words C<begin> | |
| 20 | and B<end>. | |
| 21 | ||
| 22 | When using these, special care must be taken to ensure that the ASN.1 tag | |
| 23 | value I<tag> is the same in the matching C<begin> and C<end> function calls. | |
| 24 | ||
| 25 | DER_w_begin_sequence() and DER_w_end_sequence() begins and ends a | |
| 26 | SEQUENCE. | |
| 27 | ||
| 28 | =head1 RETURN VALUES | |
| 29 | ||
| 30 | All the functions return 1 on success and 0 on failure. Failure may | |
| 31 | mean that the buffer held by the I<pkt> is too small, but may also | |
| 32 | mean that the values given to the functions are invalid, such as the provided | |
| 33 | I<tag> value being too large for the implementation. | |
| 34 | ||
| 35 | =head1 SEE ALSO | |
| 36 | ||
| 37 | L<DERlib(7)> | |
| 38 | ||
| 39 | =head1 COPYRIGHT | |
| 40 | ||
| 41 | Copyright 2020 The OpenSSL Project Authors. All Rights Reserved. | |
| 42 | ||
| 43 | Licensed under the Apache License 2.0 (the "License"). You may not use | |
| 44 | this file except in compliance with the License. You can obtain a copy | |
| 45 | in the file LICENSE in the source distribution or at | |
| 46 | L<https://www.openssl.org/source/license.html>. | |
| 47 | ||
| 48 | =cut |