| #include <stdlib.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <assert.h> |
| |
| #include "asn1parser.h" |
| |
| |
| asn1p_value_t * |
| asn1p_value_fromref(asn1p_ref_t *ref, int do_copy) { |
| if(ref) { |
| asn1p_value_t *v = calloc(1, sizeof *v); |
| if(v) { |
| if(do_copy) { |
| v->value.reference = asn1p_ref_clone(ref); |
| if(v->value.reference == NULL) { |
| free(v); |
| return NULL; |
| } |
| } else { |
| v->value.reference = ref; |
| } |
| v->type = ATV_REFERENCED; |
| } |
| return v; |
| } else { |
| errno = EINVAL; |
| return NULL; |
| } |
| } |
| |
| asn1p_value_t * |
| asn1p_value_fromconstr(asn1p_constraint_t *ct, int do_copy) { |
| if(ct) { |
| asn1p_value_t *v = calloc(1, sizeof *v); |
| if(v) { |
| if(do_copy) { |
| v->value.constraint |
| = asn1p_constraint_clone(ct); |
| if(v->value.constraint == NULL) { |
| free(v); |
| return NULL; |
| } |
| } else { |
| v->value.constraint = ct; |
| } |
| v->type = ATV_VALUESET; |
| } |
| return v; |
| } else { |
| errno = EINVAL; |
| return NULL; |
| } |
| } |
| |
| asn1p_value_t * |
| asn1p_value_frombits(uint8_t *bits, int size_in_bits, int do_copy) { |
| if(bits) { |
| asn1p_value_t *v = calloc(1, sizeof *v); |
| assert(size_in_bits >= 0); |
| if(v) { |
| if(do_copy) { |
| int size = ((size_in_bits + 7) >> 3); |
| void *p; |
| p = malloc(size + 1); |
| if(p) { |
| memcpy(p, bits, size); |
| ((char *)p)[size] = '\0'; /* JIC */ |
| } else { |
| free(v); |
| return NULL; |
| } |
| v->value.binary_vector.bits = p; |
| } else { |
| v->value.binary_vector.bits = (void *)bits; |
| } |
| v->value.binary_vector.size_in_bits = size_in_bits; |
| v->type = ATV_BITVECTOR; |
| } |
| return v; |
| } else { |
| errno = EINVAL; |
| return NULL; |
| } |
| } |
| asn1p_value_t * |
| asn1p_value_frombuf(char *buffer, int size, int do_copy) { |
| if(buffer) { |
| asn1p_value_t *v = calloc(1, sizeof *v); |
| assert(size >= 0); |
| if(v) { |
| if(do_copy) { |
| void *p = malloc(size + 1); |
| if(p) { |
| memcpy(p, buffer, size); |
| ((char *)p)[size] = '\0'; /* JIC */ |
| } else { |
| free(v); |
| return NULL; |
| } |
| v->value.string.buf = p; |
| } else { |
| v->value.string.buf = (uint8_t *)buffer; |
| } |
| v->value.string.size = size; |
| v->type = ATV_STRING; |
| } |
| return v; |
| } else { |
| errno = EINVAL; |
| return NULL; |
| } |
| } |
| |
| asn1p_value_t * |
| asn1p_value_fromdouble(double d) { |
| asn1p_value_t *v = calloc(1, sizeof *v); |
| if(v) { |
| v->value.v_double = d; |
| v->type = ATV_REAL; |
| } |
| return v; |
| } |
| |
| asn1p_value_t * |
| asn1p_value_fromint(asn1c_integer_t i) { |
| asn1p_value_t *v = calloc(1, sizeof *v); |
| if(v) { |
| v->value.v_integer = i; |
| v->type = ATV_INTEGER; |
| } |
| return v; |
| } |
| |
| asn1p_value_t * |
| asn1p_value_fromtype(asn1p_expr_t *expr) { |
| asn1p_value_t *v = calloc(1, sizeof *v); |
| if(v) { |
| v->value.v_type = expr; |
| v->type = ATV_TYPE; |
| } |
| return v; |
| } |
| |
| asn1p_value_t * |
| asn1p_value_clone(asn1p_value_t *v) { |
| return asn1p_value_clone_with_resolver(v, 0, 0); |
| } |
| |
| asn1p_value_t * |
| asn1p_value_clone_with_resolver(asn1p_value_t *v, |
| asn1p_value_t *(*resolver)(asn1p_value_t *, void *rarg), |
| void *rarg) { |
| asn1p_value_t *clone = NULL; |
| if(v) { |
| switch(v->type) { |
| case ATV_NOVALUE: |
| case ATV_NULL: |
| return calloc(1, sizeof(*clone)); |
| case ATV_REAL: |
| return asn1p_value_fromdouble(v->value.v_double); |
| case ATV_TYPE: |
| return asn1p_value_fromtype(v->value.v_type); |
| case ATV_INTEGER: |
| case ATV_MIN: |
| case ATV_MAX: |
| case ATV_FALSE: |
| case ATV_TRUE: |
| case ATV_TUPLE: |
| case ATV_QUADRUPLE: |
| clone = asn1p_value_fromint(v->value.v_integer); |
| if(clone) clone->type = v->type; |
| return clone; |
| case ATV_STRING: |
| clone = asn1p_value_frombuf((char *)v->value.string.buf, |
| v->value.string.size, 1); |
| if(clone) clone->type = v->type; |
| return clone; |
| case ATV_UNPARSED: |
| clone = asn1p_value_frombuf((char *)v->value.string.buf, |
| v->value.string.size, 1); |
| if(clone) clone->type = ATV_UNPARSED; |
| return clone; |
| case ATV_BITVECTOR: |
| return asn1p_value_frombits(v->value.binary_vector.bits, |
| v->value.binary_vector.size_in_bits, 1); |
| case ATV_REFERENCED: |
| if(resolver) { |
| clone = resolver(v, rarg); |
| if(clone) return clone; |
| else if(errno != ESRCH) return NULL; |
| } |
| return asn1p_value_fromref(v->value.reference, 1); |
| case ATV_VALUESET: |
| if(resolver) { |
| clone = resolver(v, rarg); |
| if(clone) return clone; |
| else if(errno != ESRCH) return NULL; |
| } |
| return asn1p_value_fromconstr(v->value.constraint, 1); |
| case ATV_CHOICE_IDENTIFIER: { |
| char *id = v->value.choice_identifier.identifier; |
| clone = calloc(1, sizeof(*clone)); |
| if(!clone) return NULL; |
| clone->type = v->type; |
| id = strdup(id); |
| if(!id) { asn1p_value_free(clone); return NULL; } |
| clone->value.choice_identifier.identifier = id; |
| v = asn1p_value_clone(v->value.choice_identifier.value); |
| if(!v) { asn1p_value_free(clone); return NULL; } |
| clone->value.choice_identifier.value = v; |
| return clone; |
| } |
| } |
| |
| assert(!"UNREACHABLE"); |
| } |
| return v; |
| } |
| |
| void |
| asn1p_value_free(asn1p_value_t *v) { |
| if(v) { |
| switch(v->type) { |
| case ATV_NOVALUE: |
| case ATV_NULL: |
| break; |
| case ATV_TYPE: |
| asn1p_expr_free(v->value.v_type); |
| break; |
| case ATV_REAL: |
| case ATV_INTEGER: |
| case ATV_MIN: |
| case ATV_MAX: |
| case ATV_FALSE: |
| case ATV_TRUE: |
| case ATV_TUPLE: |
| case ATV_QUADRUPLE: |
| /* No freeing necessary */ |
| break; |
| case ATV_STRING: |
| case ATV_UNPARSED: |
| assert(v->value.string.buf); |
| free(v->value.string.buf); |
| break; |
| case ATV_BITVECTOR: |
| assert(v->value.binary_vector.bits); |
| free(v->value.binary_vector.bits); |
| break; |
| case ATV_REFERENCED: |
| asn1p_ref_free(v->value.reference); |
| break; |
| case ATV_VALUESET: |
| asn1p_constraint_free(v->value.constraint); |
| break; |
| case ATV_CHOICE_IDENTIFIER: |
| free(v->value.choice_identifier.identifier); |
| asn1p_value_free(v->value.choice_identifier.value); |
| break; |
| } |
| free(v); |
| } |
| } |
| |