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56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
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// Copyright 2018 The Crashpad Authors. All rights reserved.
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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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#include "util/process/process_memory.h"
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#include "base/logging.h"
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namespace crashpad {
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bool ProcessMemory::ReadCStringInternal(VMAddress address,
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bool has_size,
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size_t size,
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std::string* string) const {
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string->clear();
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char buffer[4096];
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do {
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size_t read_size;
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if (has_size) {
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read_size = std::min(sizeof(buffer), size);
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} else {
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read_size = sizeof(buffer);
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}
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if (!Read(address, read_size, buffer)) {
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break;
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}
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char* nul = static_cast<char*>(memchr(buffer, '\0', read_size));
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if (nul != nullptr) {
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string->append(buffer, nul - buffer);
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return true;
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}
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string->append(buffer, read_size);
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address += read_size;
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size -= read_size;
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} while (!has_size || size > 0);
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LOG(ERROR) << "unterminated string";
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return false;
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}
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} // namespace crashpad
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