/*
- * Copyright (c) 2003, 2004, 2005, 2006, 2007 Lev Walkin <vlm@lionet.info>.
- * All rights reserved.
+ * Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
/*
* See the definitions.
*/
-static int _fetch_present_idx(const void *struct_ptr, int off, int size);
-static void _set_present_idx(void *sptr, int offset, int size, int pres);
+static unsigned _fetch_present_idx(const void *struct_ptr, unsigned off,
+ unsigned size);
+static void _set_present_idx(void *sptr, unsigned offset, unsigned size,
+ unsigned pres);
+static const void *_get_member_ptr(const asn_TYPE_descriptor_t *,
+ const void *sptr, asn_TYPE_member_t **elm,
+ unsigned *present);
/*
* Tags are canonically sorted in the tag to member table.
* The decoder of the CHOICE type.
*/
asn_dec_rval_t
-CHOICE_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
- void **struct_ptr, const void *ptr, size_t size, int tag_mode) {
- /*
+CHOICE_decode_ber(const asn_codec_ctx_t *opt_codec_ctx,
+ const asn_TYPE_descriptor_t *td, void **struct_ptr,
+ const void *ptr, size_t size, int tag_mode) {
+ /*
* Bring closer parts of structure description.
*/
- asn_CHOICE_specifics_t *specs = (asn_CHOICE_specifics_t *)td->specifics;
+ const asn_CHOICE_specifics_t *specs =
+ (const asn_CHOICE_specifics_t *)td->specifics;
asn_TYPE_member_t *elements = td->elements;
/*
/*
* Invoke the member fetch routine according to member's type
*/
- rval = elm->type->ber_decoder(opt_codec_ctx, elm->type,
+ rval = elm->type->op->ber_decoder(opt_codec_ctx, elm->type,
memb_ptr2, ptr, LEFT, elm->tag_mode);
switch(rval.code) {
case RC_OK:
}
asn_enc_rval_t
-CHOICE_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_CHOICE_specifics_t *specs = (asn_CHOICE_specifics_t *)td->specifics;
+CHOICE_encode_der(const asn_TYPE_descriptor_t *td, const void *sptr,
+ int tag_mode, ber_tlv_tag_t tag, asn_app_consume_bytes_f *cb,
+ void *app_key) {
+ const asn_CHOICE_specifics_t *specs = (const asn_CHOICE_specifics_t *)td->specifics;
asn_TYPE_member_t *elm; /* CHOICE element */
asn_enc_rval_t erval;
- void *memb_ptr;
+ const void *memb_ptr;
size_t computed_size = 0;
- int present;
+ unsigned present;
if(!sptr) ASN__ENCODE_FAILED;
* If the structure was not initialized, it cannot be encoded:
* can't deduce what to encode in the choice type.
*/
- if(present <= 0 || present > td->elements_count) {
+ if(present == 0 || present > td->elements_count) {
if(present == 0 && td->elements_count == 0) {
/* The CHOICE is empty?! */
erval.encoded = 0;
*/
elm = &td->elements[present-1];
if(elm->flags & ATF_POINTER) {
- memb_ptr = *(void **)((char *)sptr + elm->memb_offset);
- if(memb_ptr == 0) {
+ memb_ptr =
+ *(const void *const *)((const char *)sptr + elm->memb_offset);
+ if(memb_ptr == 0) {
if(elm->optional) {
erval.encoded = 0;
ASN__ENCODED_OK(erval);
ASN__ENCODE_FAILED;
}
} else {
- memb_ptr = (void *)((char *)sptr + elm->memb_offset);
- }
+ memb_ptr = (const void *)((const char *)sptr + elm->memb_offset);
+ }
/*
* If the CHOICE itself is tagged EXPLICIT:
ssize_t ret;
/* Encode member with its tag */
- erval = elm->type->der_encoder(elm->type, memb_ptr,
+ erval = elm->type->op->der_encoder(elm->type, memb_ptr,
elm->tag_mode, elm->tag, 0, 0);
if(erval.encoded == -1)
return erval;
/*
* Encode the single underlying member.
*/
- erval = elm->type->der_encoder(elm->type, memb_ptr,
+ erval = elm->type->op->der_encoder(elm->type, memb_ptr,
elm->tag_mode, elm->tag, cb, app_key);
if(erval.encoded == -1)
return erval;
ber_tlv_tag_t
CHOICE_outmost_tag(const asn_TYPE_descriptor_t *td, const void *ptr, int tag_mode, ber_tlv_tag_t tag) {
- asn_CHOICE_specifics_t *specs = (asn_CHOICE_specifics_t *)td->specifics;
- int present;
+ const asn_CHOICE_specifics_t *specs = (const asn_CHOICE_specifics_t *)td->specifics;
+ unsigned present;
assert(tag_mode == 0); (void)tag_mode;
assert(tag == 0); (void)tag;
*/
present = _fetch_present_idx(ptr, specs->pres_offset, specs->pres_size);
- if(present > 0 || present <= td->elements_count) {
+ if(present > 0 && present <= td->elements_count) {
const asn_TYPE_member_t *elm = &td->elements[present-1];
const void *memb_ptr;
}
int
-CHOICE_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
- asn_app_constraint_failed_f *ctfailcb, void *app_key) {
- asn_CHOICE_specifics_t *specs = (asn_CHOICE_specifics_t *)td->specifics;
- int present;
+CHOICE_constraint(const asn_TYPE_descriptor_t *td, const void *sptr,
+ asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+ const asn_CHOICE_specifics_t *specs =
+ (const asn_CHOICE_specifics_t *)td->specifics;
+ unsigned present;
if(!sptr) {
ASN__CTFAIL(app_key, td, sptr,
memb_ptr = (const void *)((const char *)sptr + elm->memb_offset);
}
- if(elm->memb_constraints) {
- return elm->memb_constraints(elm->type, memb_ptr,
+ if(elm->encoding_constraints.general_constraints) {
+ return elm->encoding_constraints.general_constraints(elm->type, memb_ptr,
ctfailcb, app_key);
} else {
- int ret = elm->type->check_constraints(elm->type,
+ return elm->type->encoding_constraints.general_constraints(elm->type,
memb_ptr, ctfailcb, app_key);
- /*
- * Cannot inherit it eralier:
- * need to make sure we get the updated version.
- */
- elm->memb_constraints = elm->type->check_constraints;
- return ret;
}
} else {
ASN__CTFAIL(app_key, td, sptr,
* Decode the XER (XML) data.
*/
asn_dec_rval_t
-CHOICE_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
- void **struct_ptr, const char *opt_mname,
- const void *buf_ptr, size_t size) {
- /*
+CHOICE_decode_xer(const asn_codec_ctx_t *opt_codec_ctx,
+ const asn_TYPE_descriptor_t *td, void **struct_ptr,
+ const char *opt_mname, const void *buf_ptr, size_t size) {
+ /*
* Bring closer parts of structure description.
*/
- asn_CHOICE_specifics_t *specs = (asn_CHOICE_specifics_t *)td->specifics;
+ const asn_CHOICE_specifics_t *specs = (const asn_CHOICE_specifics_t *)td->specifics;
const char *xml_tag = opt_mname ? opt_mname : td->xml_tag;
/*
asn_dec_rval_t rval; /* Return value of a decoder */
ssize_t consumed_myself = 0; /* Consumed bytes from ptr */
- int edx; /* Element index */
+ size_t edx; /* Element index */
/*
* Create the target structure if it is not present already.
asn_dec_rval_t tmprval;
void *memb_ptr; /* Pointer to the member */
void **memb_ptr2; /* Pointer to that pointer */
+ unsigned old_present;
elm = &td->elements[edx];
}
/* Start/Continue decoding the inner member */
- tmprval = elm->type->xer_decoder(opt_codec_ctx,
+ tmprval = elm->type->op->xer_decoder(opt_codec_ctx,
elm->type, memb_ptr2, elm->name,
buf_ptr, size);
XER_ADVANCE(tmprval.consumed);
ASN_DEBUG("XER/CHOICE: itdf: [%s] code=%d",
elm->type->name, tmprval.code);
- if(tmprval.code != RC_OK)
- RETURN(tmprval.code);
- assert(_fetch_present_idx(st,
- specs->pres_offset, specs->pres_size) == 0);
+ old_present = _fetch_present_idx(st,
+ specs->pres_offset, specs->pres_size);
+ assert(old_present == 0 || old_present == edx + 1);
/* Record what we've got */
_set_present_idx(st,
specs->pres_offset, specs->pres_size, edx + 1);
+ if(tmprval.code != RC_OK)
+ RETURN(tmprval.code);
ctx->phase = 3;
/* Fall through */
}
case -1:
ctx->phase = 5;
RETURN(RC_FAIL);
- continue;
case 1:
ctx->phase = 3;
/* Fall through */
asn_enc_rval_t
-CHOICE_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) {
- asn_CHOICE_specifics_t *specs=(asn_CHOICE_specifics_t *)td->specifics;
- asn_enc_rval_t er;
- int present;
+CHOICE_encode_xer(const asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
+ enum xer_encoder_flags_e flags, asn_app_consume_bytes_f *cb,
+ void *app_key) {
+ const asn_CHOICE_specifics_t *specs =
+ (const asn_CHOICE_specifics_t *)td->specifics;
+ asn_enc_rval_t er;
+ unsigned present;
if(!sptr)
ASN__ENCODE_FAILED;
*/
present = _fetch_present_idx(sptr, specs->pres_offset,specs->pres_size);
- if(present <= 0 || present > td->elements_count) {
+ if(present == 0 || present > td->elements_count) {
ASN__ENCODE_FAILED;
} else {
asn_enc_rval_t tmper;
asn_TYPE_member_t *elm = &td->elements[present-1];
- void *memb_ptr;
+ const void *memb_ptr;
const char *mname = elm->name;
unsigned int mlen = strlen(mname);
if(elm->flags & ATF_POINTER) {
- memb_ptr = *(void **)((char *)sptr + elm->memb_offset);
- if(!memb_ptr) ASN__ENCODE_FAILED;
+ memb_ptr =
+ *(const void *const *)((const char *)sptr + elm->memb_offset);
+ if(!memb_ptr) ASN__ENCODE_FAILED;
} else {
- memb_ptr = (void *)((char *)sptr + elm->memb_offset);
- }
+ memb_ptr = (const void *)((const char *)sptr + elm->memb_offset);
+ }
- er.encoded = 0;
+ er.encoded = 0;
- if(!(flags & XER_F_CANONICAL)) ASN__TEXT_INDENT(1, ilevel);
+ if(!(flags & XER_F_CANONICAL)) ASN__TEXT_INDENT(1, ilevel);
ASN__CALLBACK3("<", 1, mname, mlen, ">", 1);
- tmper = elm->type->xer_encoder(elm->type, memb_ptr,
+ tmper = elm->type->op->xer_encoder(elm->type, memb_ptr,
ilevel + 1, flags, cb, app_key);
if(tmper.encoded == -1) return tmper;
+ er.encoded += tmper.encoded;
ASN__CALLBACK3("</", 2, mname, mlen, ">", 1);
-
- er.encoded += 5 + (2 * mlen) + tmper.encoded;
}
if(!(flags & XER_F_CANONICAL)) ASN__TEXT_INDENT(1, ilevel - 1);
}
asn_dec_rval_t
-CHOICE_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_CHOICE_specifics_t *specs = (asn_CHOICE_specifics_t *)td->specifics;
- asn_dec_rval_t rv;
- asn_per_constraint_t *ct;
+CHOICE_decode_uper(const asn_codec_ctx_t *opt_codec_ctx,
+ const asn_TYPE_descriptor_t *td,
+ const asn_per_constraints_t *constraints, void **sptr,
+ asn_per_data_t *pd) {
+ const asn_CHOICE_specifics_t *specs =
+ (const asn_CHOICE_specifics_t *)td->specifics;
+ asn_dec_rval_t rv;
+ const asn_per_constraint_t *ct;
asn_TYPE_member_t *elm; /* CHOICE's element */
void *memb_ptr;
void **memb_ptr2;
}
if(constraints) ct = &constraints->value;
- else if(td->per_constraints) ct = &td->per_constraints->value;
+ else if(td->encoding_constraints.per_constraints) ct = &td->encoding_constraints.per_constraints->value;
else ct = 0;
if(ct && ct->flags & APC_EXTENSIBLE) {
value = uper_get_nsnnwn(pd);
if(value < 0) ASN__DECODE_STARVED;
value += specs->ext_start;
- if(value >= td->elements_count)
+ if((unsigned)value >= td->elements_count)
ASN__DECODE_FAILED;
}
/* Adjust if canonical order is different from natural order */
- if(specs->canonical_order)
- value = specs->canonical_order[value];
+ if(specs->from_canonical_order) {
+ ASN_DEBUG("CHOICE presence from wire %d", value);
+ value = specs->from_canonical_order[value];
+ ASN_DEBUG("CHOICE presence index effective %d", value);
+ }
/* Set presence to be able to free it later */
_set_present_idx(st, specs->pres_offset, specs->pres_size, value + 1);
ASN_DEBUG("Discovered CHOICE %s encodes %s", td->name, elm->name);
if(ct && ct->range_bits >= 0) {
- rv = elm->type->uper_decoder(opt_codec_ctx, elm->type,
- elm->per_constraints, memb_ptr2, pd);
+ rv = elm->type->op->uper_decoder(opt_codec_ctx, elm->type,
+ elm->encoding_constraints.per_constraints, memb_ptr2, pd);
} else {
rv = uper_open_type_get(opt_codec_ctx, elm->type,
- elm->per_constraints, memb_ptr2, pd);
+ elm->encoding_constraints.per_constraints, memb_ptr2, pd);
}
if(rv.code != RC_OK)
elm->name, td->name, rv.code);
return rv;
}
-
+
asn_enc_rval_t
-CHOICE_encode_uper(asn_TYPE_descriptor_t *td,
- asn_per_constraints_t *constraints, void *sptr, asn_per_outp_t *po) {
- asn_CHOICE_specifics_t *specs = (asn_CHOICE_specifics_t *)td->specifics;
+CHOICE_encode_uper(const asn_TYPE_descriptor_t *td,
+ const asn_per_constraints_t *constraints, const void *sptr,
+ asn_per_outp_t *po) {
+ const asn_CHOICE_specifics_t *specs = (const asn_CHOICE_specifics_t *)td->specifics;
asn_TYPE_member_t *elm; /* CHOICE's element */
- asn_per_constraint_t *ct;
- void *memb_ptr;
- int present;
+ const asn_per_constraint_t *ct;
+ const void *memb_ptr;
+ unsigned present;
int present_enc;
if(!sptr) ASN__ENCODE_FAILED;
ASN_DEBUG("Encoding %s as CHOICE", td->name);
if(constraints) ct = &constraints->value;
- else if(td->per_constraints) ct = &td->per_constraints->value;
+ else if(td->encoding_constraints.per_constraints)
+ ct = &td->encoding_constraints.per_constraints->value;
else ct = 0;
- present = _fetch_present_idx(sptr,
- specs->pres_offset, specs->pres_size);
+ present = _fetch_present_idx(sptr, specs->pres_offset, specs->pres_size);
/*
* If the structure was not initialized properly, it cannot be encoded:
* can't deduce what to encode in the choice type.
*/
- if(present <= 0 || present > td->elements_count)
+ if(present == 0 || present > td->elements_count)
ASN__ENCODE_FAILED;
else
present--;
ASN_DEBUG("Encoding %s CHOICE element %d", td->name, present);
- /* Adjust if canonical order is different from natural order */
- if(specs->canonical_order)
- present_enc = specs->canonical_order[present];
- else
- present_enc = present;
+ /* Adjust if canonical order is different from natural order */
+ if(specs->to_canonical_order)
+ present_enc = specs->to_canonical_order[present];
+ else
+ present_enc = present;
- if(ct && ct->range_bits >= 0) {
+ if(ct && ct->range_bits >= 0) {
if(present_enc < ct->lower_bound
|| present_enc > ct->upper_bound) {
if(ct->flags & APC_EXTENSIBLE) {
- if(per_put_few_bits(po, 1, 1))
+ ASN_DEBUG(
+ "CHOICE member %d (enc %d) is an extension (%ld..%ld)",
+ present, present_enc, ct->lower_bound, ct->upper_bound);
+ if(per_put_few_bits(po, 1, 1))
ASN__ENCODE_FAILED;
} else {
ASN__ENCODE_FAILED;
ct = 0;
}
}
- if(ct && ct->flags & APC_EXTENSIBLE)
- if(per_put_few_bits(po, 0, 1))
+ if(ct && ct->flags & APC_EXTENSIBLE) {
+ ASN_DEBUG("CHOICE member %d (enc %d) is not an extension (%ld..%ld)",
+ present, present_enc, ct->lower_bound, ct->upper_bound);
+ if(per_put_few_bits(po, 0, 1))
ASN__ENCODE_FAILED;
+ }
+
elm = &td->elements[present];
- if(elm->flags & ATF_POINTER) {
+ ASN_DEBUG("CHOICE member \"%s\" %d (as %d)", elm->name, present,
+ present_enc);
+ if(elm->flags & ATF_POINTER) {
/* Member is a pointer to another structure */
- memb_ptr = *(void **)((char *)sptr + elm->memb_offset);
- if(!memb_ptr) ASN__ENCODE_FAILED;
- } else {
- memb_ptr = (char *)sptr + elm->memb_offset;
- }
-
- if(ct && ct->range_bits >= 0) {
- if(per_put_few_bits(po, present_enc, ct->range_bits))
- ASN__ENCODE_FAILED;
-
- return elm->type->uper_encoder(elm->type, elm->per_constraints,
- memb_ptr, po);
+ memb_ptr =
+ *(const void *const *)((const char *)sptr + elm->memb_offset);
+ if(!memb_ptr) ASN__ENCODE_FAILED;
} else {
- asn_enc_rval_t rval;
- if(specs->ext_start == -1)
- ASN__ENCODE_FAILED;
- if(uper_put_nsnnwn(po, present_enc - specs->ext_start))
- ASN__ENCODE_FAILED;
- if(uper_open_type_put(elm->type, elm->per_constraints,
- memb_ptr, po))
- ASN__ENCODE_FAILED;
- rval.encoded = 0;
- ASN__ENCODED_OK(rval);
- }
+ memb_ptr = (const char *)sptr + elm->memb_offset;
+ }
+
+ if(ct && ct->range_bits >= 0) {
+ if(per_put_few_bits(po, present_enc, ct->range_bits))
+ ASN__ENCODE_FAILED;
+
+ return elm->type->op->uper_encoder(
+ elm->type, elm->encoding_constraints.per_constraints, memb_ptr, po);
+ } else {
+ asn_enc_rval_t rval;
+ if(specs->ext_start == -1) ASN__ENCODE_FAILED;
+ if(uper_put_nsnnwn(po, present_enc - specs->ext_start))
+ ASN__ENCODE_FAILED;
+ if(uper_open_type_put(elm->type,
+ elm->encoding_constraints.per_constraints,
+ memb_ptr, po))
+ ASN__ENCODE_FAILED;
+ rval.encoded = 0;
+ ASN__ENCODED_OK(rval);
+ }
}
-
+
int
-CHOICE_print(asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
- asn_app_consume_bytes_f *cb, void *app_key) {
- asn_CHOICE_specifics_t *specs = (asn_CHOICE_specifics_t *)td->specifics;
- int present;
+CHOICE_print(const asn_TYPE_descriptor_t *td, const void *sptr, int ilevel,
+ asn_app_consume_bytes_f *cb, void *app_key) {
+ const asn_CHOICE_specifics_t *specs = (const asn_CHOICE_specifics_t *)td->specifics;
+ unsigned present;
if(!sptr) return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
return -1;
}
- return elm->type->print_struct(elm->type, memb_ptr, ilevel,
+ return elm->type->op->print_struct(elm->type, memb_ptr, ilevel,
cb, app_key);
} else {
return (cb("<absent>", 8, app_key) < 0) ? -1 : 0;
}
void
-CHOICE_free(asn_TYPE_descriptor_t *td, void *ptr, int contents_only) {
- asn_CHOICE_specifics_t *specs = (asn_CHOICE_specifics_t *)td->specifics;
- int present;
+CHOICE_free(const asn_TYPE_descriptor_t *td, void *ptr,
+ enum asn_struct_free_method method) {
+ const asn_CHOICE_specifics_t *specs =
+ (const asn_CHOICE_specifics_t *)td->specifics;
+ unsigned present;
if(!td || !ptr)
return;
}
}
- if(!contents_only) {
- FREEMEM(ptr);
- }
+ switch(method) {
+ case ASFM_FREE_EVERYTHING:
+ FREEMEM(ptr);
+ break;
+ case ASFM_FREE_UNDERLYING:
+ break;
+ case ASFM_FREE_UNDERLYING_AND_RESET:
+ memset(ptr, 0, specs->struct_size);
+ break;
+ }
}
* is guaranteed to be aligned properly. ASN.1 compiler itself does not
* produce packed code.
*/
-static int
-_fetch_present_idx(const void *struct_ptr, int pres_offset, int pres_size) {
- const void *present_ptr;
- int present;
+static unsigned
+_fetch_present_idx(const void *struct_ptr, unsigned pres_offset,
+ unsigned pres_size) {
+ const void *present_ptr;
+ unsigned present;
present_ptr = ((const char *)struct_ptr) + pres_offset;
switch(pres_size) {
- case sizeof(int): present = *(const int *)present_ptr; break;
- case sizeof(short): present = *(const short *)present_ptr; break;
- case sizeof(char): present = *(const char *)present_ptr; break;
+ case sizeof(int): present = *(const unsigned int *)present_ptr; break;
+ case sizeof(short): present = *(const unsigned short *)present_ptr; break;
+ case sizeof(char): present = *(const unsigned char *)present_ptr; break;
default:
/* ANSI C mandates enum to be equivalent to integer */
assert(pres_size != sizeof(int));
}
static void
-_set_present_idx(void *struct_ptr, int pres_offset, int pres_size, int present) {
- void *present_ptr;
+_set_present_idx(void *struct_ptr, unsigned pres_offset, unsigned pres_size,
+ unsigned present) {
+ void *present_ptr;
present_ptr = ((char *)struct_ptr) + pres_offset;
switch(pres_size) {
- case sizeof(int): *(int *)present_ptr = present; break;
- case sizeof(short): *(short *)present_ptr = present; break;
- case sizeof(char): *(char *)present_ptr = present; break;
+ case sizeof(int): *(unsigned int *)present_ptr = present; break;
+ case sizeof(short): *(unsigned short *)present_ptr = present; break;
+ case sizeof(char): *(unsigned char *)present_ptr = present; break;
default:
/* ANSI C mandates enum to be equivalent to integer */
assert(pres_size != sizeof(int));
}
}
+
+static const void *
+_get_member_ptr(const asn_TYPE_descriptor_t *td, const void *sptr,
+ asn_TYPE_member_t **elm_ptr, unsigned *present_out) {
+ const asn_CHOICE_specifics_t *specs =
+ (const asn_CHOICE_specifics_t *)td->specifics;
+ unsigned present;
+
+ if(!sptr) {
+ *elm_ptr = NULL;
+ *present_out = 0;
+ return NULL;
+ }
+
+ /*
+ * Figure out which CHOICE element is encoded.
+ */
+ present = _fetch_present_idx(sptr, specs->pres_offset, specs->pres_size);
+ *present_out = present;
+
+ /*
+ * The presence index is intentionally 1-based to avoid
+ * treating zeroed structure as a valid one.
+ */
+ if(present > 0 && present <= td->elements_count) {
+ asn_TYPE_member_t *const elm = &td->elements[present - 1];
+ const void *memb_ptr;
+
+ if(elm->flags & ATF_POINTER) {
+ memb_ptr =
+ *(const void *const *)((const char *)sptr + elm->memb_offset);
+ } else {
+ memb_ptr = (const void *)((const char *)sptr + elm->memb_offset);
+ }
+ *elm_ptr = elm;
+ return memb_ptr;
+ } else {
+ *elm_ptr = NULL;
+ return NULL;
+ }
+
+}
+
+int
+CHOICE_compare(const asn_TYPE_descriptor_t *td, const void *aptr, const void *bptr) {
+ asn_TYPE_member_t *aelm;
+ asn_TYPE_member_t *belm;
+ unsigned apresent = 0;
+ unsigned bpresent = 0;
+ const void *amember = _get_member_ptr(td, aptr, &aelm, &apresent);
+ const void *bmember = _get_member_ptr(td, bptr, &belm, &bpresent);
+
+ if(amember && bmember) {
+ if(apresent == bpresent) {
+ assert(aelm == belm);
+ return aelm->type->op->compare_struct(aelm->type, amember, bmember);
+ } else if(apresent < bpresent) {
+ return -1;
+ } else {
+ return 1;
+ }
+ } else if(!amember) {
+ return -1;
+ } else {
+ return 1;
+ }
+}
+
+/*
+ * Return the 1-based choice variant presence index.
+ * Returns 0 in case of error.
+ */
+unsigned
+CHOICE_variant_get_presence(const asn_TYPE_descriptor_t *td, const void *sptr) {
+ const asn_CHOICE_specifics_t *specs =
+ (const asn_CHOICE_specifics_t *)td->specifics;
+ return _fetch_present_idx(sptr, specs->pres_offset, specs->pres_size);
+}
+
+/*
+ * Sets or resets the 1-based choice variant presence index.
+ * In case a previous index is not zero, the currently selected structure
+ * member is freed and zeroed-out first.
+ * Returns 0 on success and -1 on error.
+ */
+int
+CHOICE_variant_set_presence(const asn_TYPE_descriptor_t *td, void *sptr,
+ unsigned present) {
+ const asn_CHOICE_specifics_t *specs =
+ (const asn_CHOICE_specifics_t *)td->specifics;
+ unsigned old_present;
+
+ if(!sptr) {
+ return -1;
+ }
+
+ if(present > td->elements_count)
+ return -1;
+
+ old_present =
+ _fetch_present_idx(sptr, specs->pres_offset, specs->pres_size);
+ if(present == old_present)
+ return 0;
+
+ if(old_present != 0) {
+ assert(old_present <= td->elements_count);
+ ASN_STRUCT_RESET(*td, sptr);
+ }
+
+ _set_present_idx(sptr, specs->pres_offset, specs->pres_size, present);
+
+ return 0;
+}
+
+
+asn_random_fill_result_t
+CHOICE_random_fill(const asn_TYPE_descriptor_t *td, void **sptr,
+ const asn_encoding_constraints_t *constr,
+ size_t max_length) {
+ const asn_CHOICE_specifics_t *specs =
+ (const asn_CHOICE_specifics_t *)td->specifics;
+ asn_random_fill_result_t res;
+ asn_random_fill_result_t result_failed = {ARFILL_FAILED, 0};
+ asn_random_fill_result_t result_skipped = {ARFILL_SKIPPED, 0};
+ const asn_TYPE_member_t *elm;
+ unsigned present;
+ void *memb_ptr; /* Pointer to the member */
+ void **memb_ptr2; /* Pointer to that pointer */
+ void *st = *sptr;
+
+ if(max_length == 0) return result_skipped;
+
+ (void)constr;
+
+ if(st == NULL) {
+ st = CALLOC(1, specs->struct_size);
+ if(st == NULL) {
+ return result_failed;
+ }
+ }
+
+ present = asn_random_between(1, td->elements_count);
+ elm = &td->elements[present - 1];
+
+ if(elm->flags & ATF_POINTER) {
+ /* Member is a pointer to another structure */
+ memb_ptr2 = (void **)((char *)st + elm->memb_offset);
+ } else {
+ memb_ptr = (char *)st + elm->memb_offset;
+ memb_ptr2 = &memb_ptr;
+ }
+
+ res = elm->type->op->random_fill(elm->type, memb_ptr2,
+ &elm->encoding_constraints, max_length);
+ _set_present_idx(st, specs->pres_offset, specs->pres_size, present);
+ if(res.code == ARFILL_OK) {
+ *sptr = st;
+ } else {
+ if(st == *sptr) {
+ ASN_STRUCT_RESET(*td, st);
+ } else {
+ ASN_STRUCT_FREE(*td, st);
+ }
+ }
+
+ return res;
+}
+
+
+asn_TYPE_operation_t asn_OP_CHOICE = {
+ CHOICE_free,
+ CHOICE_print,
+ CHOICE_compare,
+ CHOICE_decode_ber,
+ CHOICE_encode_der,
+ CHOICE_decode_xer,
+ CHOICE_encode_xer,
+#ifdef ASN_DISABLE_OER_SUPPORT
+ 0,
+ 0,
+#else
+ CHOICE_decode_oer,
+ CHOICE_encode_oer,
+#endif /* ASN_DISABLE_OER_SUPPORT */
+#ifdef ASN_DISABLE_PER_SUPPORT
+ 0,
+ 0,
+#else
+ CHOICE_decode_uper,
+ CHOICE_encode_uper,
+#endif /* ASN_DISABLE_PER_SUPPORT */
+ CHOICE_random_fill,
+ CHOICE_outmost_tag
+};
git.stg.codes / stg.git / blobdiff