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/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "ForwardIOStreamsAndroid.h"
#include <android/log.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <wtf/StdLibExtras.h>
#ifndef EXIT_FAILURE
#define EXIT_FAILURE 1
#endif
namespace {
const char optionInFIFO[] = "--in-fifo=";
const char optionOutFIFO[] = "--out-fifo=";
const char optionErrFIFO[] = "--err-fifo=";
void androidLogError(const char* format, ...) WTF_ATTRIBUTE_PRINTF(1, 2);
void androidLogError(const char* format, ...)
{
va_list args;
va_start(args, format);
__android_log_vprint(ANDROID_LOG_ERROR, "WebKit", format, args);
va_end(args);
}
void removeArg(int index, int* argc, char*** argv)
{
for (int i = index; i < *argc; ++i)
(*argv)[i] = (*argv)[i + 1];
--*argc;
}
void createFIFO(const char* fifoPath)
{
unlink(fifoPath);
// 0666 is rw-rw-rw-, to allow adb shell to read/write the fifo.
// Explicitly call chmod to ensure the mode is set despite umask.
if (mkfifo(fifoPath, 0666) || chmod(fifoPath, 0666)) {
androidLogError("Failed to create fifo %s: %s\n", fifoPath, strerror(errno));
exit(EXIT_FAILURE);
}
}
void redirect(FILE* stream, const char* path, const char* mode)
{
if (!freopen(path, mode, stream)) {
androidLogError("Failed to redirect stream to file: %s: %s\n", path, strerror(errno));
exit(EXIT_FAILURE);
}
}
} // namespace
namespace WebKit {
void maybeInitIOStreamForwardingForAndroid(int* argc, char*** argv)
{
const char* inFIFO = 0;
const char* outFIFO = 0;
const char* errFIFO = 0;
for (int i = 1; i < *argc; ) {
const char* argument = (*argv)[i];
if (strstr(argument, optionInFIFO) == argument) {
inFIFO = argument + WTF_ARRAY_LENGTH(optionInFIFO) - 1;
createFIFO(inFIFO);
removeArg(i, argc, argv);
} else if (strstr(argument, optionOutFIFO) == argument) {
outFIFO = argument + WTF_ARRAY_LENGTH(optionOutFIFO) - 1;
createFIFO(outFIFO);
removeArg(i, argc, argv);
} else if (strstr(argument, optionErrFIFO) == argument) {
errFIFO = argument + WTF_ARRAY_LENGTH(optionErrFIFO) - 1;
createFIFO(errFIFO);
removeArg(i, argc, argv);
} else
++i;
}
// The order of createFIFO() and redirectToFIFO() is important to avoid deadlock.
if (outFIFO)
redirect(stdout, outFIFO, "w");
if (inFIFO)
redirect(stdin, inFIFO, "r");
if (errFIFO)
redirect(stderr, errFIFO, "w");
else {
// Redirect stderr to stdout.
dup2(1, 2);
}
}
} // namespace WebKit
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