+/*-
+ * Copyright (c) 2003, 2005 Lev Walkin <vlm@lionet.info>. All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+#include <asn_internal.h>
+#include <asn_codecs_prim.h>
+#include <BOOLEAN.h>
+
+/*
+ * BOOLEAN basic type description.
+ */
+static ber_tlv_tag_t asn_DEF_BOOLEAN_tags[] = {
+ (ASN_TAG_CLASS_UNIVERSAL | (1 << 2))
+};
+asn_TYPE_descriptor_t asn_DEF_BOOLEAN = {
+ "BOOLEAN",
+ "BOOLEAN",
+ BOOLEAN_free,
+ BOOLEAN_print,
+ asn_generic_no_constraint,
+ BOOLEAN_decode_ber,
+ BOOLEAN_encode_der,
+ BOOLEAN_decode_xer,
+ BOOLEAN_encode_xer,
+ BOOLEAN_decode_uper, /* Unaligned PER decoder */
+ BOOLEAN_encode_uper, /* Unaligned PER encoder */
+ 0, /* Use generic outmost tag fetcher */
+ asn_DEF_BOOLEAN_tags,
+ sizeof(asn_DEF_BOOLEAN_tags) / sizeof(asn_DEF_BOOLEAN_tags[0]),
+ asn_DEF_BOOLEAN_tags, /* Same as above */
+ sizeof(asn_DEF_BOOLEAN_tags) / sizeof(asn_DEF_BOOLEAN_tags[0]),
+ 0, /* No PER visible constraints */
+ 0, 0, /* No members */
+ 0 /* No specifics */
+};
+
+/*
+ * Decode BOOLEAN type.
+ */
+asn_dec_rval_t
+BOOLEAN_decode_ber(asn_codec_ctx_t *opt_codec_ctx,
+ asn_TYPE_descriptor_t *td,
+ void **bool_value, const void *buf_ptr, size_t size,
+ int tag_mode) {
+ BOOLEAN_t *st = (BOOLEAN_t *)*bool_value;
+ asn_dec_rval_t rval;
+ ber_tlv_len_t length;
+ ber_tlv_len_t lidx;
+
+ if(st == NULL) {
+ st = (BOOLEAN_t *)(*bool_value = CALLOC(1, sizeof(*st)));
+ if(st == NULL) {
+ rval.code = RC_FAIL;
+ rval.consumed = 0;
+ return rval;
+ }
+ }
+
+ ASN_DEBUG("Decoding %s as BOOLEAN (tm=%d)",
+ td->name, tag_mode);
+
+ /*
+ * Check tags.
+ */
+ rval = ber_check_tags(opt_codec_ctx, td, 0, buf_ptr, size,
+ tag_mode, 0, &length, 0);
+ if(rval.code != RC_OK)
+ return rval;
+
+ ASN_DEBUG("Boolean length is %d bytes", (int)length);
+
+ buf_ptr = ((const char *)buf_ptr) + rval.consumed;
+ size -= rval.consumed;
+ if(length > (ber_tlv_len_t)size) {
+ rval.code = RC_WMORE;
+ rval.consumed = 0;
+ return rval;
+ }
+
+ /*
+ * Compute boolean value.
+ */
+ for(*st = 0, lidx = 0;
+ (lidx < length) && *st == 0; lidx++) {
+ /*
+ * Very simple approach: read bytes until the end or
+ * value is already TRUE.
+ * BOOLEAN is not supposed to contain meaningful data anyway.
+ */
+ *st |= ((const uint8_t *)buf_ptr)[lidx];
+ }
+
+ rval.code = RC_OK;
+ rval.consumed += length;
+
+ ASN_DEBUG("Took %ld/%ld bytes to encode %s, value=%d",
+ (long)rval.consumed, (long)length,
+ td->name, *st);
+
+ return rval;
+}
+
+asn_enc_rval_t
+BOOLEAN_encode_der(asn_TYPE_descriptor_t *td, void *sptr,
+ int tag_mode, ber_tlv_tag_t tag,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ asn_enc_rval_t erval;
+ BOOLEAN_t *st = (BOOLEAN_t *)sptr;
+
+ erval.encoded = der_write_tags(td, 1, tag_mode, 0, tag, cb, app_key);
+ if(erval.encoded == -1) {
+ erval.failed_type = td;
+ erval.structure_ptr = sptr;
+ return erval;
+ }
+
+ if(cb) {
+ uint8_t bool_value;
+
+ bool_value = *st ? 0xff : 0; /* 0xff mandated by DER */
+
+ if(cb(&bool_value, 1, app_key) < 0) {
+ erval.encoded = -1;
+ erval.failed_type = td;
+ erval.structure_ptr = sptr;
+ return erval;
+ }
+ }
+
+ erval.encoded += 1;
+
+ _ASN_ENCODED_OK(erval);
+}
+
+
+/*
+ * Decode the chunk of XML text encoding INTEGER.
+ */
+static enum xer_pbd_rval
+BOOLEAN__xer_body_decode(asn_TYPE_descriptor_t *td, void *sptr, const void *chunk_buf, size_t chunk_size) {
+ BOOLEAN_t *st = (BOOLEAN_t *)sptr;
+ const char *p = (const char *)chunk_buf;
+
+ (void)td;
+
+ if(chunk_size && p[0] == 0x3c /* '<' */) {
+ switch(xer_check_tag(chunk_buf, chunk_size, "false")) {
+ case XCT_BOTH:
+ /* "<false/>" */
+ *st = 0;
+ break;
+ case XCT_UNKNOWN_BO:
+ if(xer_check_tag(chunk_buf, chunk_size, "true")
+ != XCT_BOTH)
+ return XPBD_BROKEN_ENCODING;
+ /* "<true/>" */
+ *st = 1; /* Or 0xff as in DER?.. */
+ break;
+ default:
+ return XPBD_BROKEN_ENCODING;
+ }
+ return XPBD_BODY_CONSUMED;
+ } else {
+ if(xer_is_whitespace(chunk_buf, chunk_size))
+ return XPBD_NOT_BODY_IGNORE;
+ else
+ return XPBD_BROKEN_ENCODING;
+ }
+}
+
+
+asn_dec_rval_t
+BOOLEAN_decode_xer(asn_codec_ctx_t *opt_codec_ctx,
+ asn_TYPE_descriptor_t *td, void **sptr, const char *opt_mname,
+ const void *buf_ptr, size_t size) {
+
+ return xer_decode_primitive(opt_codec_ctx, td,
+ sptr, sizeof(BOOLEAN_t), opt_mname, buf_ptr, size,
+ BOOLEAN__xer_body_decode);
+}
+
+asn_enc_rval_t
+BOOLEAN_encode_xer(asn_TYPE_descriptor_t *td, void *sptr,
+ int ilevel, enum xer_encoder_flags_e flags,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ const BOOLEAN_t *st = (const BOOLEAN_t *)sptr;
+ asn_enc_rval_t er;
+
+ (void)ilevel;
+ (void)flags;
+
+ if(!st) _ASN_ENCODE_FAILED;
+
+ if(*st) {
+ _ASN_CALLBACK("<true/>", 7);
+ er.encoded = 7;
+ } else {
+ _ASN_CALLBACK("<false/>", 8);
+ er.encoded = 8;
+ }
+
+ _ASN_ENCODED_OK(er);
+cb_failed:
+ _ASN_ENCODE_FAILED;
+}
+
+int
+BOOLEAN_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ const BOOLEAN_t *st = (const BOOLEAN_t *)sptr;
+ const char *buf;
+ size_t buflen;
+
+ (void)td; /* Unused argument */
+ (void)ilevel; /* Unused argument */
+
+ if(st) {
+ if(*st) {
+ buf = "TRUE";
+ buflen = 4;
+ } else {
+ buf = "FALSE";
+ buflen = 5;
+ }
+ } else {
+ buf = "<absent>";
+ buflen = 8;
+ }
+
+ return (cb(buf, buflen, app_key) < 0) ? -1 : 0;
+}
+
+void
+BOOLEAN_free(asn_TYPE_descriptor_t *td, void *ptr, int contents_only) {
+ if(td && ptr && !contents_only) {
+ FREEMEM(ptr);
+ }
+}
+
+asn_dec_rval_t
+BOOLEAN_decode_uper(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
+ asn_per_constraints_t *constraints, void **sptr, asn_per_data_t *pd) {
+ asn_dec_rval_t rv;
+ BOOLEAN_t *st = (BOOLEAN_t *)*sptr;
+
+ (void)opt_codec_ctx;
+ (void)constraints;
+
+ if(!st) {
+ st = (BOOLEAN_t *)(*sptr = MALLOC(sizeof(*st)));
+ if(!st) _ASN_DECODE_FAILED;
+ }
+
+ /*
+ * Extract a single bit
+ */
+ switch(per_get_few_bits(pd, 1)) {
+ case 1: *st = 1; break;
+ case 0: *st = 0; break;
+ case -1: default: _ASN_DECODE_FAILED;
+ }
+
+ ASN_DEBUG("%s decoded as %s", td->name, *st ? "TRUE" : "FALSE");
+
+ rv.code = RC_OK;
+ rv.consumed = 1;
+ return rv;
+}
+
+
+asn_enc_rval_t
+BOOLEAN_encode_uper(asn_TYPE_descriptor_t *td,
+ asn_per_constraints_t *constraints, void *sptr, asn_per_outp_t *po) {
+ const BOOLEAN_t *st = (const BOOLEAN_t *)sptr;
+ asn_enc_rval_t er;
+
+ (void)constraints;
+
+ if(!st) _ASN_ENCODE_FAILED;
+
+ per_put_few_bits(po, *st ? 1 : 0, 1);
+
+ _ASN_ENCODED_OK(er);
+}
git.stg.codes / stg.git / blobdiff