vlm | fa67ddc | 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 | */ |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 5 | #include <asn_internal.h> |
vlm | 4114a86 | 2004-10-22 08:20:32 +0000 | [diff] [blame] | 6 | #include <asn_codecs_prim.h> |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 7 | #include <NULL.h> |
| 8 | #include <BOOLEAN.h> /* Implemented in terms of BOOLEAN type */ |
| 9 | |
| 10 | /* |
| 11 | * NULL basic type description. |
| 12 | */ |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 13 | static ber_tlv_tag_t asn_DEF_NULL_tags[] = { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 14 | (ASN_TAG_CLASS_UNIVERSAL | (5 << 2)) |
| 15 | }; |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 16 | asn_TYPE_descriptor_t asn_DEF_NULL = { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 17 | "NULL", |
vlm | 9de248e | 2004-10-20 15:50:55 +0000 | [diff] [blame] | 18 | "NULL", |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 19 | BOOLEAN_free, |
| 20 | NULL_print, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 21 | asn_generic_no_constraint, |
| 22 | BOOLEAN_decode_ber, /* Implemented in terms of BOOLEAN */ |
| 23 | NULL_encode_der, /* Special handling of DER encoding */ |
vlm | 4114a86 | 2004-10-22 08:20:32 +0000 | [diff] [blame] | 24 | NULL_decode_xer, |
| 25 | NULL_encode_xer, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 26 | 0, /* Use generic outmost tag fetcher */ |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 27 | asn_DEF_NULL_tags, |
| 28 | sizeof(asn_DEF_NULL_tags) / sizeof(asn_DEF_NULL_tags[0]), |
| 29 | asn_DEF_NULL_tags, /* Same as above */ |
| 30 | sizeof(asn_DEF_NULL_tags) / sizeof(asn_DEF_NULL_tags[0]), |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 31 | 0, 0, /* No members */ |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 32 | 0 /* No specifics */ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 33 | }; |
| 34 | |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 35 | asn_enc_rval_t |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 36 | NULL_encode_der(asn_TYPE_descriptor_t *td, void *ptr, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 37 | int tag_mode, ber_tlv_tag_t tag, |
| 38 | asn_app_consume_bytes_f *cb, void *app_key) { |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 39 | asn_enc_rval_t erval; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 40 | |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 41 | erval.encoded = der_write_tags(td, 0, tag_mode, 0, tag, cb, app_key); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 42 | if(erval.encoded == -1) { |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 43 | erval.failed_type = td; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 44 | erval.structure_ptr = ptr; |
| 45 | } |
| 46 | |
| 47 | return erval; |
| 48 | } |
| 49 | |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 50 | asn_enc_rval_t |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 51 | NULL_encode_xer(asn_TYPE_descriptor_t *td, void *sptr, |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 52 | int ilevel, enum xer_encoder_flags_e flags, |
| 53 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 54 | asn_enc_rval_t er; |
| 55 | |
| 56 | (void)td; |
| 57 | (void)sptr; |
| 58 | (void)ilevel; |
| 59 | (void)flags; |
| 60 | (void)cb; |
| 61 | (void)app_key; |
| 62 | |
| 63 | /* XMLNullValue is empty */ |
| 64 | er.encoded = 0; |
| 65 | |
| 66 | return er; |
| 67 | } |
| 68 | |
vlm | 4114a86 | 2004-10-22 08:20:32 +0000 | [diff] [blame] | 69 | |
| 70 | static ssize_t |
| 71 | NULL__xer_body_decode(void *sptr, void *chunk_buf, size_t chunk_size) { |
| 72 | (void)sptr; |
| 73 | if(xer_is_whitespace(chunk_buf, chunk_size)) |
| 74 | return chunk_size; |
| 75 | return -1; |
| 76 | } |
| 77 | |
| 78 | asn_dec_rval_t |
| 79 | NULL_decode_xer(asn_codec_ctx_t *opt_codec_ctx, |
| 80 | asn_TYPE_descriptor_t *td, void **sptr, const char *opt_mname, |
| 81 | void *buf_ptr, size_t size) { |
| 82 | |
| 83 | return xer_decode_primitive(opt_codec_ctx, td, |
| 84 | sptr, sizeof(NULL_t), opt_mname, buf_ptr, size, |
| 85 | NULL__xer_body_decode); |
| 86 | } |
| 87 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 88 | int |
vlm | ef6355b | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 89 | NULL_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 90 | asn_app_consume_bytes_f *cb, void *app_key) { |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 91 | |
| 92 | (void)td; /* Unused argument */ |
| 93 | (void)ilevel; /* Unused argument */ |
| 94 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 95 | if(sptr) { |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 96 | return (cb("<present>", 9, app_key) < 0) ? -1 : 0; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 97 | } else { |
vlm | 6678cb1 | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 98 | return (cb("<absent>", 8, app_key) < 0) ? -1 : 0; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 99 | } |
| 100 | } |