65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
// Copyright 2016 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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////////////////////////////////////////////////////////////////////////////////
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#include <stddef.h>
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#include <stdint.h>
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#include <vector>
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#include "archive.h"
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struct Buffer {
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const uint8_t *buf;
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size_t len;
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};
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ssize_t reader_callback(struct archive *a, void *client_data,
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const void **block) {
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Buffer *buffer = reinterpret_cast<Buffer *>(client_data);
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*block = buffer->buf;
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ssize_t len = buffer->len;
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buffer->len = 0;
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return len;
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}
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len) {
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int ret;
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ssize_t r;
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struct archive *a = archive_read_new();
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archive_read_support_filter_all(a);
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archive_read_support_format_all(a);
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Buffer buffer = {buf, len};
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archive_read_open(a, &buffer, NULL, reader_callback, NULL);
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std::vector<uint8_t> data_buffer(getpagesize(), 0);
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struct archive_entry *entry;
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while(1) {
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ret = archive_read_next_header(a, &entry);
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if (ret == ARCHIVE_EOF || ret == ARCHIVE_FATAL)
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break;
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if (ret == ARCHIVE_RETRY)
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continue;
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while ((r = archive_read_data(a, data_buffer.data(),
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data_buffer.size())) > 0)
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;
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if (r == ARCHIVE_FATAL)
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break;
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}
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archive_read_free(a);
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return 0;
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}
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