| /* |
| * cafebabe - the class loader library in C |
| * Copyright (C) 2010 Pekka Enberg |
| * |
| * This file is released under the GPL version 2 with the following |
| * clarification and special exception: |
| * |
| * Linking this library statically or dynamically with other modules is |
| * making a combined work based on this library. Thus, the terms and |
| * conditions of the GNU General Public License cover the whole |
| * combination. |
| * |
| * As a special exception, the copyright holders of this library give you |
| * permission to link this library with independent modules to produce an |
| * executable, regardless of the license terms of these independent |
| * modules, and to copy and distribute the resulting executable under terms |
| * of your choice, provided that you also meet, for each linked independent |
| * module, the terms and conditions of the license of that module. An |
| * independent module is a module which is not derived from or based on |
| * this library. If you modify this library, you may extend this exception |
| * to your version of the library, but you are not obligated to do so. If |
| * you do not wish to do so, delete this exception statement from your |
| * version. |
| * |
| * Please refer to the file LICENSE for details. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include "cafebabe/inner_classes_attribute.h" |
| #include "cafebabe/attribute_info.h" |
| #include "cafebabe/stream.h" |
| #include "cafebabe/class.h" |
| |
| int |
| cafebabe_inner_classes_attribute_init(struct cafebabe_inner_classes_attribute *a, struct cafebabe_stream *s) |
| { |
| if (cafebabe_stream_read_uint16(s, &a->number_of_classes)) |
| goto out; |
| |
| a->inner_classes = cafebabe_stream_malloc(s, sizeof(*a->inner_classes) * a->number_of_classes); |
| if (!a->inner_classes) |
| goto out; |
| |
| for (uint16_t i = 0; i < a->number_of_classes; ++i) { |
| struct cafebabe_inner_class *e = &a->inner_classes[i]; |
| |
| if (cafebabe_stream_read_uint16(s, &e->inner_class_info_index)) |
| goto out_free; |
| |
| if (cafebabe_stream_read_uint16(s, &e->outer_class_info_index)) |
| goto out_free; |
| |
| if (cafebabe_stream_read_uint16(s, &e->inner_name_index)) |
| goto out_free; |
| |
| if (cafebabe_stream_read_uint16(s, &e->inner_class_access_flags)) |
| goto out_free; |
| } |
| return 0; |
| |
| out_free: |
| free(a->inner_classes); |
| out: |
| return 1; |
| } |
| |
| void |
| cafebabe_inner_classes_attribute_deinit(struct cafebabe_inner_classes_attribute *a) |
| { |
| free(a->inner_classes); |
| } |
| |
| int cafebabe_read_inner_classes_attribute(const struct cafebabe_class *class, |
| const struct cafebabe_attribute_array *attributes, |
| struct cafebabe_inner_classes_attribute *inner_classes_attrib) |
| { |
| const struct cafebabe_attribute_info *attribute; |
| unsigned int inner_classes_index = 0; |
| struct cafebabe_stream stream; |
| |
| if (cafebabe_attribute_array_get(attributes, "InnerClasses", class, &inner_classes_index)) |
| return 0; |
| |
| attribute = &class->attributes.array[inner_classes_index]; |
| |
| cafebabe_stream_open_buffer(&stream, attribute->info, attribute->attribute_length); |
| |
| if (cafebabe_inner_classes_attribute_init(inner_classes_attrib, &stream)) |
| return -1; /* XXX */ |
| |
| cafebabe_stream_close_buffer(&stream); |
| |
| return 0; |
| } |