Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 1 | /*- |
| 2 | * Copyright (c) 2003 Lev Walkin <vlm@lionet.info>. All rights reserved. |
| 3 | * Redistribution and modifications are permitted subject to BSD license. |
| 4 | */ |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame^] | 5 | #include <asn_internal.h> |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 6 | #include <NULL.h> |
| 7 | #include <BOOLEAN.h> /* Implemented in terms of BOOLEAN type */ |
| 8 | |
| 9 | /* |
| 10 | * NULL basic type description. |
| 11 | */ |
| 12 | static ber_tlv_tag_t asn1_DEF_NULL_tags[] = { |
| 13 | (ASN_TAG_CLASS_UNIVERSAL | (5 << 2)) |
| 14 | }; |
| 15 | asn1_TYPE_descriptor_t asn1_DEF_NULL = { |
| 16 | "NULL", |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame^] | 17 | BOOLEAN_free, |
| 18 | NULL_print, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 19 | asn_generic_no_constraint, |
| 20 | BOOLEAN_decode_ber, /* Implemented in terms of BOOLEAN */ |
| 21 | NULL_encode_der, /* Special handling of DER encoding */ |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame^] | 22 | 0, /* Not implemented yet */ |
| 23 | NULL_encode_xer, /* Special handling of DER encoding */ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 24 | 0, /* Use generic outmost tag fetcher */ |
| 25 | asn1_DEF_NULL_tags, |
Lev Walkin | 188ed2c | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 26 | sizeof(asn1_DEF_NULL_tags) / sizeof(asn1_DEF_NULL_tags[0]), |
| 27 | asn1_DEF_NULL_tags, /* Same as above */ |
| 28 | sizeof(asn1_DEF_NULL_tags) / sizeof(asn1_DEF_NULL_tags[0]), |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 29 | 0, /* Always in primitive form */ |
Lev Walkin | 449f832 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 30 | 0, 0, /* No members */ |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 31 | 0 /* No specifics */ |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 32 | }; |
| 33 | |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame^] | 34 | asn_enc_rval_t |
| 35 | NULL_encode_der(asn1_TYPE_descriptor_t *td, void *ptr, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 36 | int tag_mode, ber_tlv_tag_t tag, |
| 37 | asn_app_consume_bytes_f *cb, void *app_key) { |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame^] | 38 | asn_enc_rval_t erval; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 39 | |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame^] | 40 | erval.encoded = der_write_tags(td, 0, tag_mode, tag, cb, app_key); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 41 | if(erval.encoded == -1) { |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame^] | 42 | erval.failed_type = td; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 43 | erval.structure_ptr = ptr; |
| 44 | } |
| 45 | |
| 46 | return erval; |
| 47 | } |
| 48 | |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame^] | 49 | asn_enc_rval_t |
| 50 | NULL_encode_xer(asn1_TYPE_descriptor_t *td, void *sptr, |
| 51 | int ilevel, enum xer_encoder_flags_e flags, |
| 52 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 53 | asn_enc_rval_t er; |
| 54 | |
| 55 | (void)td; |
| 56 | (void)sptr; |
| 57 | (void)ilevel; |
| 58 | (void)flags; |
| 59 | (void)cb; |
| 60 | (void)app_key; |
| 61 | |
| 62 | /* XMLNullValue is empty */ |
| 63 | er.encoded = 0; |
| 64 | |
| 65 | return er; |
| 66 | } |
| 67 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 68 | int |
| 69 | NULL_print(asn1_TYPE_descriptor_t *td, const void *sptr, int ilevel, |
| 70 | asn_app_consume_bytes_f *cb, void *app_key) { |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 71 | |
| 72 | (void)td; /* Unused argument */ |
| 73 | (void)ilevel; /* Unused argument */ |
| 74 | |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 75 | if(sptr) { |
| 76 | return cb("<present>", 9, app_key); |
| 77 | } else { |
| 78 | return cb("<absent>", 8, app_key); |
| 79 | } |
| 80 | } |