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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
#include "asn1parser.h"
asn1p_constraint_t *
asn1p_constraint_new(int _lineno) {
asn1p_constraint_t *ct;
ct = calloc(1, sizeof(*ct));
if(ct) {
ct->_lineno = _lineno;
}
return ct;
}
void
asn1p_constraint_free(asn1p_constraint_t *ct) {
if(ct) {
if(ct->containedSubtype)
asn1p_value_free(ct->containedSubtype);
if(ct->value)
asn1p_value_free(ct->value);
if(ct->range_start)
asn1p_value_free(ct->range_start);
if(ct->range_stop)
asn1p_value_free(ct->range_stop);
if(ct->elements) {
while(ct->el_count--) {
asn1p_constraint_free(
ct->elements[ct->el_count]);
}
free(ct->elements);
}
free(ct);
}
}
asn1p_constraint_t *
asn1p_constraint_clone(asn1p_constraint_t *src) {
return asn1p_constraint_clone_with_resolver(src, 0, 0);
}
asn1p_constraint_t *
asn1p_constraint_clone_with_resolver(asn1p_constraint_t *src,
asn1p_value_t *(*vr)(asn1p_value_t *, void *varg), void *varg) {
asn1p_constraint_t *clone;
#define CLONE(field, func) do { if(src->field) { \
clone->field = func(src->field, vr, varg); \
if(clone->field == NULL) { \
asn1p_constraint_free(clone); \
return NULL; \
} \
} } while(0)
clone = asn1p_constraint_new(src->_lineno);
if(clone) {
unsigned int i;
clone->type = src->type;
clone->presence = src->presence;
CLONE(containedSubtype, asn1p_value_clone_with_resolver);
CLONE(value, asn1p_value_clone_with_resolver);
CLONE(range_start, asn1p_value_clone_with_resolver);
CLONE(range_stop, asn1p_value_clone_with_resolver);
for(i = 0; i < src->el_count; i++) {
asn1p_constraint_t *t;
t = asn1p_constraint_clone_with_resolver(src->elements[i], vr, varg);
if(!t) {
asn1p_constraint_free(clone);
return NULL;
}
if(asn1p_constraint_insert(clone, t)) {
asn1p_constraint_free(clone);
asn1p_constraint_free(t);
return NULL;
}
}
assert(clone->el_count == src->el_count);
clone->_lineno = src->_lineno;
}
return clone;
}
/*
* Make sure there's enough space to add an element.
*/
static int
asn1p_constraint_make_memory(asn1p_constraint_t *ct) {
if(ct->el_count == ct->el_size) {
unsigned int newsize = ct->el_size ? ct->el_size << 2 : 4;
void *p;
p = realloc(ct->elements, newsize * sizeof(ct->elements[0]));
if(p) {
ct->elements = p;
ct->el_size = newsize;
} else {
return -1;
}
}
return 0;
}
int
asn1p_constraint_insert(asn1p_constraint_t *into, asn1p_constraint_t *what) {
assert(into);
assert(what);
if(asn1p_constraint_make_memory(into))
return -1;
into->elements[into->el_count++] = what;
return 0;
}
int
asn1p_constraint_prepend(asn1p_constraint_t *before, asn1p_constraint_t *what) {
assert(before);
assert(what);
if(asn1p_constraint_make_memory(before))
return -1;
memmove(&before->elements[1], &before->elements[0],
before->el_count * sizeof(before->elements[0]));
before->elements[0] = what;
before->el_count++;
return 0;
}
char *
asn1p_constraint_type2str(enum asn1p_constraint_type_e type) {
switch(type) {
case ACT_INVALID:
return "INVALID";
case ACT_EL_TYPE:
return "ContainedSubtype";
case ACT_EL_VALUE:
return "SingleValue";
case ACT_EL_RANGE:
case ACT_EL_LLRANGE:
case ACT_EL_RLRANGE:
case ACT_EL_ULRANGE:
return "ValueRange";
case ACT_EL_EXT:
return "...";
case ACT_CT_SIZE:
return "SizeConstraint";
case ACT_CT_FROM:
return "PermittedAlphabet";
case ACT_CT_WCOMP:
return "SingleTypeConstraint";
case ACT_CT_WCOMPS:
return "MultipleTypeConstraints";
case ACT_CT_CTDBY:
return "UserDefinedConstraint";
case ACT_CT_CTNG:
return "ContentsConstraint";
case ACT_CT_PATTERN:
return "PatternConstraint";
case ACT_CA_SET:
return "SET";
case ACT_CA_CRC:
return "ComponentRelationConstraint";
case ACT_CA_CSV:
return "CSV";
case ACT_CA_UNI:
return "UNION";
case ACT_CA_INT:
return "INTERSECTION";
case ACT_CA_EXC:
return "EXCEPT";
case ACT_CA_AEX:
return "ALL EXCEPT";
}
return "UNKNOWN";
}
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