mirror of https://github.com/google/oss-fuzz.git
121 lines
4.0 KiB
Java
121 lines
4.0 KiB
Java
// Copyright 2022 Google LLC
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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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import java.io.ByteArrayOutputStream;
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import java.io.ByteArrayInputStream;
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import java.io.StringReader;
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import java.io.InputStream;
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import com.code_intelligence.jazzer.api.FuzzedDataProvider;
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import com.fasterxml.jackson.core.Base64Variant;
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import com.fasterxml.jackson.core.Base64Variants;
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import com.fasterxml.jackson.core.JsonFactory;
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import com.fasterxml.jackson.core.json.UTF8JsonGenerator;
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import com.fasterxml.jackson.core.JsonGenerator;
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import com.fasterxml.jackson.core.SerializableString;
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import com.fasterxml.jackson.core.io.SerializedString;
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import java.io.IOException;
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public class UTF8GeneratorFuzzer {
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public static void fuzzerTestOneInput(FuzzedDataProvider data) {
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JsonFactory jf = new JsonFactory();
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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String fuzzString;
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JsonGenerator g;
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int offset;
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byte[] b;
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Base64Variant b64v;
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try {
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g = jf.createGenerator(out);
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} catch (IOException ignored) {
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return;
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}
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int numberOfOps = data.consumeInt();
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for (int i = 0; i < numberOfOps%20; i++) {
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try {
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int apiType = data.consumeInt();
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switch(apiType%9) {
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case 0:
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fuzzString = data.consumeString(1000000);
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StringReader targetReader = new StringReader(fuzzString);
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g.writeStartArray();
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g.writeString(targetReader, fuzzString.length());
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g.writeEndArray();
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case 1:
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fuzzString = data.consumeString(1000000);
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g.writeStartArray();
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g.writeString(fuzzString);
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g.writeEndArray();
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case 2:
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fuzzString = data.consumeString(1000000);
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SerializableString ss = new SerializedString(fuzzString);
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g.writeStartArray();
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g.writeString(ss);
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g.writeEndArray();
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case 3:
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fuzzString = data.consumeString(1000000);
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g.writeStartArray();
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g.writeRaw(fuzzString);
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g.writeEndArray();
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case 4:
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fuzzString = data.consumeString(1000000);
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offset = data.consumeInt();
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g.writeStartArray();
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g.writeRaw(fuzzString, offset, fuzzString.length());
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g.writeEndArray();
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case 5:
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String key = data.consumeString(1000000);
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String value = data.consumeString(1000000);
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g.writeStartObject();
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g.writeStringField(key, value);
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g.writeEndObject();
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case 6:
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b64v = Base64Variants.getDefaultVariant();
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b = data.consumeBytes(1000000);
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offset = data.consumeInt();
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g.writeStartArray();
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g.writeBinary(b64v, b, offset, b.length);
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g.writeEndArray();
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case 7:
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b = data.consumeBytes(1000000);
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offset = data.consumeInt();
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g.writeStartObject();
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g.writeUTF8String(b, offset, b.length);
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g.writeEndObject();
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case 8:
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b64v = Base64Variants.getDefaultVariant();
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b = data.consumeBytes(1000000);
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offset = data.consumeInt();
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InputStream targetStream = new ByteArrayInputStream(b);
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g.writeStartArray();
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g.writeBinary(b64v, targetStream, b.length);
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g.writeEndArray();
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}
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} catch (IOException | IllegalArgumentException ignored) {
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}
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}
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try {
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g.close();
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} catch (IOException ignored) {
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}
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}
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}
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