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/*
* Copyright 2009, 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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 <iostream>
#include <fstream>
#include "plugin/cross/config.h"
#include "base/logging.h"
namespace o3d {
// Checks the driver GUID against the blacklist file. Returns true if there's a
// match [this driver is blacklisted] or if an IO error occurred. Check the
// state of input_file to determine which it was.
//
// Note that this function always returns false if the guid is 0, since it will
// be zero if we had a failure in reading it, and the user will already have
// been warned.
bool IsDriverBlacklisted(std::ifstream *input_file, unsigned int guid) {
if (!guid) {
return false;
}
*input_file >> std::ws;
while (input_file->good()) {
if (input_file->peek() == '#') {
char comment[256];
input_file->getline(comment, 256);
// If the line was too long for this to work, it'll set the failbit.
} else {
unsigned int id;
*input_file >> std::hex >> id;
if (id == guid) {
return true;
}
}
*input_file >> std::ws; // Skip whitespace here, to catch EOF cleanly.
}
if (input_file->fail()) {
LOG(ERROR) << "Failed to read the blacklisted driver file completely.";
return true;
}
CHECK(input_file->eof());
return false;
}
} // namespace o3d
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