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Unified Diff: net/tools/dns_fuzz_stub/dns_fuzz_stub.cc

Issue 992733002: Remove //net (except for Android test stuff) and sdch (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 9 months ago
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Index: net/tools/dns_fuzz_stub/dns_fuzz_stub.cc
diff --git a/net/tools/dns_fuzz_stub/dns_fuzz_stub.cc b/net/tools/dns_fuzz_stub/dns_fuzz_stub.cc
deleted file mode 100644
index 5dbcead8e9635eb4962bf4cfb7d7b986b62e832a..0000000000000000000000000000000000000000
--- a/net/tools/dns_fuzz_stub/dns_fuzz_stub.cc
+++ /dev/null
@@ -1,215 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <algorithm>
-#include <sstream>
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/files/file_path.h"
-#include "base/files/file_util.h"
-#include "base/json/json_reader.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/time/time.h"
-#include "base/values.h"
-#include "net/base/address_list.h"
-#include "net/base/dns_util.h"
-#include "net/base/io_buffer.h"
-#include "net/base/ip_endpoint.h"
-#include "net/dns/dns_protocol.h"
-#include "net/dns/dns_query.h"
-#include "net/dns/dns_response.h"
-
-namespace {
-
-void CrashDoubleFree(void) {
- // Cause ASAN to detect a double-free
- void *p = malloc(1);
- LOG(INFO) << "Allocated p=" << p << ". Double-freeing...";
- free(p);
- free(p);
-}
-
-void CrashNullPointerDereference(void) {
- // Cause the program to segfault with a NULL pointer dereference
- int *p = NULL;
- *p = 0;
-}
-
-bool FitsUint8(int num) {
- return (num >= 0) && (num <= kuint8max);
-}
-
-bool FitsUint16(int num) {
- return (num >= 0) && (num <= kuint16max);
-}
-
-bool ReadTestCase(const char* filename,
- uint16* id, std::string* qname, uint16* qtype,
- std::vector<char>* resp_buf,
- bool* crash_test) {
- base::FilePath filepath = base::FilePath::FromUTF8Unsafe(filename);
-
- std::string json;
- if (!base::ReadFileToString(filepath, &json)) {
- LOG(ERROR) << filename << ": couldn't read file.";
- return false;
- }
-
- scoped_ptr<base::Value> value(base::JSONReader::Read(json));
- if (!value.get()) {
- LOG(ERROR) << filename << ": couldn't parse JSON.";
- return false;
- }
-
- base::DictionaryValue* dict;
- if (!value->GetAsDictionary(&dict)) {
- LOG(ERROR) << filename << ": test case is not a dictionary.";
- return false;
- }
-
- *crash_test = dict->HasKey("crash_test");
- if (*crash_test) {
- LOG(INFO) << filename << ": crash_test is set!";
- return true;
- }
-
- int id_int;
- if (!dict->GetInteger("id", &id_int)) {
- LOG(ERROR) << filename << ": id is missing or not an integer.";
- return false;
- }
- if (!FitsUint16(id_int)) {
- LOG(ERROR) << filename << ": id is out of range.";
- return false;
- }
- *id = static_cast<uint16>(id_int);
-
- if (!dict->GetStringASCII("qname", qname)) {
- LOG(ERROR) << filename << ": qname is missing or not a string.";
- return false;
- }
-
- int qtype_int;
- if (!dict->GetInteger("qtype", &qtype_int)) {
- LOG(ERROR) << filename << ": qtype is missing or not an integer.";
- return false;
- }
- if (!FitsUint16(qtype_int)) {
- LOG(ERROR) << filename << ": qtype is out of range.";
- return false;
- }
- *qtype = static_cast<uint16>(qtype_int);
-
- base::ListValue* resp_list;
- if (!dict->GetList("response", &resp_list)) {
- LOG(ERROR) << filename << ": response is missing or not a list.";
- return false;
- }
-
- size_t resp_size = resp_list->GetSize();
- resp_buf->clear();
- resp_buf->reserve(resp_size);
- for (size_t i = 0; i < resp_size; i++) {
- int resp_byte_int;
- if ((!resp_list->GetInteger(i, &resp_byte_int))) {
- LOG(ERROR) << filename << ": response[" << i << "] is not an integer.";
- return false;
- }
- if (!FitsUint8(resp_byte_int)) {
- LOG(ERROR) << filename << ": response[" << i << "] is out of range.";
- return false;
- }
- resp_buf->push_back(static_cast<char>(resp_byte_int));
- }
- DCHECK(resp_buf->size() == resp_size);
-
- LOG(INFO) << "Query: id=" << id_int << ", "
- << "qname=" << *qname << ", "
- << "qtype=" << qtype_int << ", "
- << "resp_size=" << resp_size;
-
- return true;
-}
-
-void RunTestCase(uint16 id, std::string& qname, uint16 qtype,
- std::vector<char>& resp_buf) {
- net::DnsQuery query(id, qname, qtype);
- net::DnsResponse response;
- std::copy(resp_buf.begin(), resp_buf.end(), response.io_buffer()->data());
-
- if (!response.InitParse(resp_buf.size(), query)) {
- LOG(INFO) << "InitParse failed.";
- return;
- }
-
- net::AddressList address_list;
- base::TimeDelta ttl;
- net::DnsResponse::Result result = response.ParseToAddressList(
- &address_list, &ttl);
- if (result != net::DnsResponse::DNS_PARSE_OK) {
- LOG(INFO) << "ParseToAddressList failed: " << result;
- return;
- }
-
- // Print the response in one compact line.
- std::stringstream result_line;
- result_line << "Response: address_list={ ";
- for (unsigned int i = 0; i < address_list.size(); i++)
- result_line << address_list[i].ToString() << " ";
- result_line << "}, ttl=" << ttl.InSeconds() << "s";
-
- LOG(INFO) << result_line.str();
-}
-
-bool ReadAndRunTestCase(const char* filename) {
- uint16 id = 0;
- std::string qname;
- uint16 qtype = 0;
- std::vector<char> resp_buf;
- bool crash_test = false;
-
- LOG(INFO) << "Test case: " << filename;
-
- // ReadTestCase will print a useful error message if it fails.
- if (!ReadTestCase(filename, &id, &qname, &qtype, &resp_buf, &crash_test))
- return false;
-
- if (crash_test) {
- LOG(INFO) << "Crashing.";
- CrashDoubleFree();
- // if we're not running under ASAN, that might not have worked
- CrashNullPointerDereference();
- NOTREACHED();
- return true;
- }
-
- std::string qname_dns;
- if (!net::DNSDomainFromDot(qname, &qname_dns)) {
- LOG(ERROR) << filename << ": DNSDomainFromDot(" << qname << ") failed.";
- return false;
- }
-
- RunTestCase(id, qname_dns, qtype, resp_buf);
-
- return true;
-}
-
-}
-
-int main(int argc, char** argv) {
- int ret = 0;
-
- for (int i = 1; i < argc; i++)
- if (!ReadAndRunTestCase(argv[i]))
- ret = 2;
-
- // Cluster-Fuzz likes "#EOF" as the last line of output to help distinguish
- // successful runs from crashes.
- printf("#EOF\n");
-
- return ret;
-}
-
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