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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This command-line program dumps the contents of a set of cache files, either
// to stdout or to another set of cache files.
#include <stdio.h>
#include <string>
#include "base/at_exit.h"
#include "base/command_line.h"
#include "base/i18n/icu_util.h"
#include "base/strings/string_util.h"
#include "net/disk_cache/blockfile/disk_format.h"
#include "net/tools/dump_cache/dump_files.h"
enum Errors {
GENERIC = -1,
ALL_GOOD = 0,
INVALID_ARGUMENT = 1,
FILE_ACCESS_ERROR,
UNKNOWN_VERSION,
TOOL_NOT_FOUND,
};
// Dumps the file headers to stdout.
const char kDumpHeaders[] = "dump-headers";
// Dumps all entries to stdout.
const char kDumpContents[] = "dump-contents";
// Dumps the LRU lists(s).
const char kDumpLists[] = "dump-lists";
// Dumps the entry at the given address (see kDumpAt).
const char kDumpEntry[] = "dump-entry";
// The cache address to dump.
const char kDumpAt[] = "at";
// Dumps the allocation bitmap of a file (see kDumpFile).
const char kDumpAllocation[] = "dump-allocation";
// The file to look at.
const char kDumpFile[] = "file";
int Help() {
printf("dump_cache path_to_files [options]\n");
printf("Dumps internal cache structures.\n");
printf("warning: input files may be modified by this tool\n\n");
printf("--dump-headers: show file headers\n");
printf("--dump-contents [-v] [--full-key] [--csv]: list all entries\n");
printf("--dump-lists: follow the LRU list(s)\n");
printf(
"--dump-entry [-v] [--full-key] --at=0xf00: show the data stored at"
" 0xf00\n");
printf(
"--dump-allocation --file=data_0: show the allocation bitmap of"
" data_0\n");
printf("--csv: dump in a comma-separated-values format\n");
printf(
"--full-key: show up to 160 chars for the key. Use either -v or the"
" key address for longer keys\n");
printf("-v: detailed output (verbose)\n");
return INVALID_ARGUMENT;
}
// -----------------------------------------------------------------------
int main(int argc, const char* argv[]) {
// Setup an AtExitManager so Singleton objects will be destroyed.
base::AtExitManager at_exit_manager;
// base::UnlocalizedTimeFormatWithPattern() depends on ICU.
base::i18n::InitializeICU();
base::CommandLine::Init(argc, argv);
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
base::CommandLine::StringVector args = command_line.GetArgs();
if (args.size() != 1)
return Help();
base::FilePath input_path(args[0]);
if (input_path.empty())
return Help();
if (!CheckFileVersion(input_path)) {
return FILE_ACCESS_ERROR;
}
if (command_line.HasSwitch(kDumpContents))
return DumpContents(input_path);
if (command_line.HasSwitch(kDumpLists))
return DumpLists(input_path);
if (command_line.HasSwitch(kDumpEntry) && command_line.HasSwitch(kDumpAt))
return DumpEntryAt(input_path, command_line.GetSwitchValueASCII(kDumpAt));
if (command_line.HasSwitch(kDumpAllocation) &&
command_line.HasSwitch(kDumpFile)) {
base::FilePath name =
input_path.AppendASCII(command_line.GetSwitchValueASCII(kDumpFile));
return DumpAllocation(name);
}
if (command_line.HasSwitch(kDumpHeaders))
return DumpHeaders(input_path);
return Help();
}
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