2 * Copyright (c) 2003, 2005 Lev Walkin <vlm@lionet.info>. All rights reserved.
3 * Redistribution and modifications are permitted subject to BSD license.
5 #include <asn_internal.h>
6 #include <asn_codecs_prim.h>
10 * BOOLEAN basic type description.
12 static ber_tlv_tag_t asn_DEF_BOOLEAN_tags[] = {
13 (ASN_TAG_CLASS_UNIVERSAL | (1 << 2))
15 asn_TYPE_descriptor_t asn_DEF_BOOLEAN = {
20 asn_generic_no_constraint,
25 BOOLEAN_decode_uper, /* Unaligned PER decoder */
26 BOOLEAN_encode_uper, /* Unaligned PER encoder */
27 0, /* Use generic outmost tag fetcher */
29 sizeof(asn_DEF_BOOLEAN_tags) / sizeof(asn_DEF_BOOLEAN_tags[0]),
30 asn_DEF_BOOLEAN_tags, /* Same as above */
31 sizeof(asn_DEF_BOOLEAN_tags) / sizeof(asn_DEF_BOOLEAN_tags[0]),
32 0, /* No PER visible constraints */
33 0, 0, /* No members */
38 * Decode BOOLEAN type.
41 BOOLEAN_decode_ber(asn_codec_ctx_t *opt_codec_ctx,
42 asn_TYPE_descriptor_t *td,
43 void **bool_value, const void *buf_ptr, size_t size,
45 BOOLEAN_t *st = (BOOLEAN_t *)*bool_value;
51 st = (BOOLEAN_t *)(*bool_value = CALLOC(1, sizeof(*st)));
59 ASN_DEBUG("Decoding %s as BOOLEAN (tm=%d)",
65 rval = ber_check_tags(opt_codec_ctx, td, 0, buf_ptr, size,
66 tag_mode, 0, &length, 0);
67 if(rval.code != RC_OK)
70 ASN_DEBUG("Boolean length is %d bytes", (int)length);
72 buf_ptr = ((const char *)buf_ptr) + rval.consumed;
73 size -= rval.consumed;
74 if(length > (ber_tlv_len_t)size) {
81 * Compute boolean value.
83 for(*st = 0, lidx = 0;
84 (lidx < length) && *st == 0; lidx++) {
86 * Very simple approach: read bytes until the end or
87 * value is already TRUE.
88 * BOOLEAN is not supposed to contain meaningful data anyway.
90 *st |= ((const uint8_t *)buf_ptr)[lidx];
94 rval.consumed += length;
96 ASN_DEBUG("Took %ld/%ld bytes to encode %s, value=%d",
97 (long)rval.consumed, (long)length,
104 BOOLEAN_encode_der(asn_TYPE_descriptor_t *td, void *sptr,
105 int tag_mode, ber_tlv_tag_t tag,
106 asn_app_consume_bytes_f *cb, void *app_key) {
107 asn_enc_rval_t erval;
108 BOOLEAN_t *st = (BOOLEAN_t *)sptr;
110 erval.encoded = der_write_tags(td, 1, tag_mode, 0, tag, cb, app_key);
111 if(erval.encoded == -1) {
112 erval.failed_type = td;
113 erval.structure_ptr = sptr;
120 bool_value = *st ? 0xff : 0; /* 0xff mandated by DER */
122 if(cb(&bool_value, 1, app_key) < 0) {
124 erval.failed_type = td;
125 erval.structure_ptr = sptr;
132 _ASN_ENCODED_OK(erval);
137 * Decode the chunk of XML text encoding INTEGER.
139 static enum xer_pbd_rval
140 BOOLEAN__xer_body_decode(asn_TYPE_descriptor_t *td, void *sptr, const void *chunk_buf, size_t chunk_size) {
141 BOOLEAN_t *st = (BOOLEAN_t *)sptr;
142 const char *p = (const char *)chunk_buf;
146 if(chunk_size && p[0] == 0x3c /* '<' */) {
147 switch(xer_check_tag(chunk_buf, chunk_size, "false")) {
153 if(xer_check_tag(chunk_buf, chunk_size, "true")
155 return XPBD_BROKEN_ENCODING;
157 *st = 1; /* Or 0xff as in DER?.. */
160 return XPBD_BROKEN_ENCODING;
162 return XPBD_BODY_CONSUMED;
164 if(xer_is_whitespace(chunk_buf, chunk_size))
165 return XPBD_NOT_BODY_IGNORE;
167 return XPBD_BROKEN_ENCODING;
173 BOOLEAN_decode_xer(asn_codec_ctx_t *opt_codec_ctx,
174 asn_TYPE_descriptor_t *td, void **sptr, const char *opt_mname,
175 const void *buf_ptr, size_t size) {
177 return xer_decode_primitive(opt_codec_ctx, td,
178 sptr, sizeof(BOOLEAN_t), opt_mname, buf_ptr, size,
179 BOOLEAN__xer_body_decode);
183 BOOLEAN_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
184 int ilevel, enum xer_encoder_flags_e flags,
185 asn_app_consume_bytes_f *cb, void *app_key) {
186 const BOOLEAN_t *st = (const BOOLEAN_t *)sptr;
192 if(!st) _ASN_ENCODE_FAILED;
195 _ASN_CALLBACK("<true/>", 7);
198 _ASN_CALLBACK("<false/>", 8);
208 BOOLEAN_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
209 asn_app_consume_bytes_f *cb, void *app_key) {
210 const BOOLEAN_t *st = (const BOOLEAN_t *)sptr;
214 (void)td; /* Unused argument */
215 (void)ilevel; /* Unused argument */
230 return (cb(buf, buflen, app_key) < 0) ? -1 : 0;
234 BOOLEAN_free(asn_TYPE_descriptor_t *td, void *ptr, int contents_only) {
235 if(td && ptr && !contents_only) {
241 BOOLEAN_decode_uper(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
242 asn_per_constraints_t *constraints, void **sptr, asn_per_data_t *pd) {
244 BOOLEAN_t *st = (BOOLEAN_t *)*sptr;
250 st = (BOOLEAN_t *)(*sptr = MALLOC(sizeof(*st)));
251 if(!st) _ASN_DECODE_FAILED;
255 * Extract a single bit
257 switch(per_get_few_bits(pd, 1)) {
258 case 1: *st = 1; break;
259 case 0: *st = 0; break;
260 case -1: default: _ASN_DECODE_FAILED;
263 ASN_DEBUG("%s decoded as %s", td->name, *st ? "TRUE" : "FALSE");
272 BOOLEAN_encode_uper(asn_TYPE_descriptor_t *td,
273 asn_per_constraints_t *constraints, void *sptr, asn_per_outp_t *po) {
274 const BOOLEAN_t *st = (const BOOLEAN_t *)sptr;
279 if(!st) _ASN_ENCODE_FAILED;
281 per_put_few_bits(po, *st ? 1 : 0, 1);