Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 1 | /*- |
| 2 | * Copyright (c) 2003, 2004 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 <constr_SEQUENCE_OF.h> |
| 7 | #include <asn_SEQUENCE_OF.h> |
| 8 | |
| 9 | /* |
| 10 | * The DER encoder of the SEQUENCE OF type. |
| 11 | */ |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 12 | asn_enc_rval_t |
Lev Walkin | 5e03376 | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 13 | SEQUENCE_OF_encode_der(asn_TYPE_descriptor_t *td, void *ptr, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 14 | int tag_mode, ber_tlv_tag_t tag, |
| 15 | asn_app_consume_bytes_f *cb, void *app_key) { |
Lev Walkin | 5e03376 | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 16 | asn_TYPE_member_t *elm = td->elements; |
Lev Walkin | c234657 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 17 | A_SEQUENCE_OF(void) *list; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 18 | size_t computed_size = 0; |
| 19 | ssize_t encoding_size = 0; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 20 | asn_enc_rval_t erval; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 21 | int edx; |
| 22 | |
Lev Walkin | 449f832 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 23 | ASN_DEBUG("Estimating size of SEQUENCE OF %s", td->name); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 24 | |
| 25 | /* |
| 26 | * Gather the length of the underlying members sequence. |
| 27 | */ |
Lev Walkin | abc76b0 | 2005-01-27 17:55:42 +0000 | [diff] [blame] | 28 | (void *)list = ptr; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 29 | for(edx = 0; edx < list->count; edx++) { |
| 30 | void *memb_ptr = list->array[edx]; |
| 31 | erval = elm->type->der_encoder(elm->type, memb_ptr, |
| 32 | 0, elm->tag, |
| 33 | 0, 0); |
| 34 | if(erval.encoded == -1) |
| 35 | return erval; |
| 36 | computed_size += erval.encoded; |
| 37 | } |
| 38 | |
| 39 | /* |
| 40 | * Encode the TLV for the sequence itself. |
| 41 | */ |
Lev Walkin | 8e8078a | 2004-09-26 13:10:40 +0000 | [diff] [blame] | 42 | encoding_size = der_write_tags(td, computed_size, tag_mode, 1, tag, |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 43 | cb, app_key); |
| 44 | if(encoding_size == -1) { |
| 45 | erval.encoded = -1; |
Lev Walkin | 449f832 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 46 | erval.failed_type = td; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 47 | erval.structure_ptr = ptr; |
| 48 | return erval; |
| 49 | } |
| 50 | |
| 51 | computed_size += encoding_size; |
| 52 | if(!cb) { |
| 53 | erval.encoded = computed_size; |
| 54 | return erval; |
| 55 | } |
| 56 | |
Lev Walkin | 449f832 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 57 | ASN_DEBUG("Encoding members of SEQUENCE OF %s", td->name); |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 58 | |
| 59 | /* |
| 60 | * Encode all members. |
| 61 | */ |
| 62 | for(edx = 0; edx < list->count; edx++) { |
| 63 | void *memb_ptr = list->array[edx]; |
| 64 | erval = elm->type->der_encoder(elm->type, memb_ptr, |
| 65 | 0, elm->tag, |
| 66 | cb, app_key); |
| 67 | if(erval.encoded == -1) |
| 68 | return erval; |
| 69 | encoding_size += erval.encoded; |
| 70 | } |
| 71 | |
Lev Walkin | d9bd775 | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 72 | if(computed_size != (size_t)encoding_size) { |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 73 | /* |
| 74 | * Encoded size is not equal to the computed size. |
| 75 | */ |
| 76 | erval.encoded = -1; |
Lev Walkin | 449f832 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 77 | erval.failed_type = td; |
Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 78 | erval.structure_ptr = ptr; |
| 79 | } else { |
| 80 | erval.encoded = computed_size; |
| 81 | } |
| 82 | |
| 83 | return erval; |
| 84 | } |
| 85 | |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 86 | asn_enc_rval_t |
Lev Walkin | 5e03376 | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 87 | SEQUENCE_OF_encode_xer(asn_TYPE_descriptor_t *td, void *sptr, |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 88 | int ilevel, enum xer_encoder_flags_e flags, |
| 89 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 90 | asn_enc_rval_t er; |
Lev Walkin | 5e03376 | 2004-09-29 13:26:15 +0000 | [diff] [blame] | 91 | asn_SET_OF_specifics_t *specs = (asn_SET_OF_specifics_t *)td->specifics; |
| 92 | asn_TYPE_member_t *element = td->elements; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 93 | A_SEQUENCE_OF(void) *list; |
| 94 | const char *mname = specs->as_XMLValueList |
Lev Walkin | dc06f6b | 2004-10-20 15:50:55 +0000 | [diff] [blame] | 95 | ? 0 : ((*element->name) |
| 96 | ? element->name : element->type->xml_tag); |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 97 | unsigned int mlen = mname ? strlen(mname) : 0; |
| 98 | int xcan = (flags & XER_F_CANONICAL); |
| 99 | int i; |
| 100 | |
| 101 | if(!sptr) _ASN_ENCODE_FAILED; |
| 102 | |
| 103 | er.encoded = 0; |
| 104 | |
Lev Walkin | abc76b0 | 2005-01-27 17:55:42 +0000 | [diff] [blame] | 105 | (void *)list = sptr; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 106 | for(i = 0; i < list->count; i++) { |
| 107 | asn_enc_rval_t tmper; |
| 108 | |
| 109 | void *memb_ptr = list->array[i]; |
| 110 | if(!memb_ptr) continue; |
| 111 | |
| 112 | if(mname) { |
| 113 | if(!xcan) _i_ASN_TEXT_INDENT(1, ilevel); |
| 114 | _ASN_CALLBACK3("<", 1, mname, mlen, ">", 1); |
| 115 | } |
| 116 | |
| 117 | tmper = element->type->xer_encoder(element->type, memb_ptr, |
| 118 | ilevel + 1, flags, cb, app_key); |
| 119 | if(tmper.encoded == -1) return tmper; |
Lev Walkin | 642962a | 2005-02-24 22:37:07 +0000 | [diff] [blame] | 120 | if(tmper.encoded == 0 && specs->as_XMLValueList) { |
| 121 | const char *name = (*element->name) |
| 122 | ? element->name : element->type->xml_tag; |
| 123 | size_t len = strlen(name); |
| 124 | if(!xcan) _i_ASN_TEXT_INDENT(1, ilevel + 1); |
| 125 | _ASN_CALLBACK3("<", 1, name, len, "/>", 2); |
| 126 | } |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 127 | |
| 128 | if(mname) { |
| 129 | _ASN_CALLBACK3("</", 2, mname, mlen, ">", 1); |
| 130 | er.encoded += 5; |
| 131 | } |
| 132 | |
| 133 | er.encoded += (2 * mlen) + tmper.encoded; |
| 134 | } |
| 135 | |
| 136 | if(!xcan) _i_ASN_TEXT_INDENT(1, ilevel - 1); |
| 137 | |
| 138 | return er; |
Lev Walkin | 942fd08 | 2004-10-03 09:13:02 +0000 | [diff] [blame] | 139 | cb_failed: |
| 140 | _ASN_ENCODE_FAILED; |
Lev Walkin | a9cc46e | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 141 | } |
| 142 | |