1c7daaf12e
* Small cleanup RzBuffer constructors * Small cleanup RzBuffer methods * Refactor rz_buf_read* for a better error handling * Add documentation for RzBuffer API ##doc
94 lines
2.5 KiB
C
94 lines
2.5 KiB
C
// SPDX-FileCopyrightText: 2021 deroad <wargio@libero.it>
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// SPDX-License-Identifier: LGPL-3.0-only
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#include "class_field.h"
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#include "class_private.h"
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#define FIELD_ACCESS_FLAGS_SIZE 16
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static const AccessFlagsReadable access_flags_list[FIELD_ACCESS_FLAGS_SIZE] = {
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{ FIELD_ACCESS_FLAG_PUBLIC, "public" },
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{ FIELD_ACCESS_FLAG_PRIVATE, "private" },
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{ FIELD_ACCESS_FLAG_PROTECTED, "protected" },
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{ FIELD_ACCESS_FLAG_STATIC, "static" },
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{ FIELD_ACCESS_FLAG_FINAL, "final" },
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{ FIELD_ACCESS_FLAG_VOLATILE, "volatile" },
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{ FIELD_ACCESS_FLAG_TRANSIENT, "transient" },
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{ FIELD_ACCESS_FLAG_SYNTHETIC, "synthetic" },
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{ FIELD_ACCESS_FLAG_ENUM, "enum" },
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};
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char *java_field_access_flags_readable(const Field *field) {
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rz_return_val_if_fail(field, NULL);
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RzStrBuf *sb = NULL;
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for (ut32 i = 0; i < FIELD_ACCESS_FLAGS_SIZE; ++i) {
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const AccessFlagsReadable *afr = &access_flags_list[i];
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if (field->access_flags & afr->flag) {
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if (!sb) {
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sb = rz_strbuf_new(afr->readable);
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if (!sb) {
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return NULL;
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}
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} else {
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rz_strbuf_appendf(sb, " %s", afr->readable);
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}
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}
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}
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return sb ? rz_strbuf_drain(sb) : NULL;
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}
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Field *java_field_new(ConstPool **pool, ut32 poolsize, RzBuffer *buf, ut64 offset) {
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Field *field = RZ_NEW0(Field);
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rz_return_val_if_fail(field, NULL);
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field->offset = offset;
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ut64 base = offset - rz_buf_tell(buf);
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if (!rz_buf_read_be16(buf, &field->access_flags) ||
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!rz_buf_read_be16(buf, &field->name_index) ||
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!rz_buf_read_be16(buf, &field->descriptor_index) ||
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!rz_buf_read_be16(buf, &field->attributes_count)) {
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free(field);
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return NULL;
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}
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if (field->attributes_count < 1) {
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return field;
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}
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field->attributes = RZ_NEWS0(Attribute *, field->attributes_count);
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if (!field->attributes) {
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free(field);
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rz_warn_if_reached();
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return NULL;
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}
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for (ut32 i = 0; i < field->attributes_count; ++i) {
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offset = rz_buf_tell(buf) + base;
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Attribute *attr = java_attribute_new(buf, offset);
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if (attr && java_attribute_resolve(pool, poolsize, attr, buf, false)) {
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field->attributes[i] = attr;
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} else {
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java_attribute_free(attr);
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break;
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}
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}
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return field;
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}
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void java_field_free(Field *field) {
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if (!field) {
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return;
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}
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if (field->attributes) {
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for (ut32 i = 0; i < field->attributes_count; ++i) {
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java_attribute_free(field->attributes[i]);
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}
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free(field->attributes);
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}
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free(field);
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}
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bool java_field_is_global(const Field *field) {
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ut16 flag = FIELD_ACCESS_FLAG_PUBLIC | FIELD_ACCESS_FLAG_STATIC | FIELD_ACCESS_FLAG_FINAL;
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return field && (field->access_flags & flag) == flag;
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}
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