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116 lines
2.8 KiB
C++
116 lines
2.8 KiB
C++
// Copyright 2020 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifdef UNSAFE_BUFFERS_BUILD
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// TODO(crbug.com/390223051): Remove C-library calls to fix the errors.
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#pragma allow_unsafe_libc_calls
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#endif
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#include "base/check_op.h"
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#include <string.h>
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#include <algorithm>
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#include <cstdio>
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#include <sstream>
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#include "base/containers/span.h"
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#include "base/logging.h"
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#include "base/strings/cstring_view.h"
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namespace logging {
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char* CheckOpValueStr(int v) {
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char buf[50];
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snprintf(buf, sizeof(buf), "%d", v);
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return strdup(buf);
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}
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char* CheckOpValueStr(unsigned v) {
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char buf[50];
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snprintf(buf, sizeof(buf), "%u", v);
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return strdup(buf);
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}
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char* CheckOpValueStr(long v) {
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char buf[50];
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snprintf(buf, sizeof(buf), "%ld", v);
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return strdup(buf);
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}
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char* CheckOpValueStr(unsigned long v) {
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char buf[50];
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snprintf(buf, sizeof(buf), "%lu", v);
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return strdup(buf);
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}
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char* CheckOpValueStr(long long v) {
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char buf[50];
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snprintf(buf, sizeof(buf), "%lld", v);
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return strdup(buf);
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}
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char* CheckOpValueStr(unsigned long long v) {
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char buf[50];
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snprintf(buf, sizeof(buf), "%llu", v);
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return strdup(buf);
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}
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char* CheckOpValueStr(const void* v) {
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char buf[50];
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snprintf(buf, sizeof(buf), "%p", v);
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return strdup(buf);
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}
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char* CheckOpValueStr(std::nullptr_t v) {
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return strdup("nullptr");
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}
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char* CheckOpValueStr(const std::string& v) {
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return strdup(v.c_str());
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}
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char* CheckOpValueStr(std::string_view v) {
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// Ideally this would be `strndup`, but `strndup` is not portable. We have to
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// use malloc() instead of HeapArray in order to match strdup() in the other
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// overloads. The API contract is that the caller uses free() to release the
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// pointer returned here.
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char* ret = static_cast<char*>(malloc(v.size() + 1u));
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auto [val, nul] =
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// SAFETY: We allocated `ret` as `v.size() + 1` bytes above.
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UNSAFE_BUFFERS(base::span<char>(ret, v.size() + 1u)).split_at(v.size());
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val.copy_from(v);
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nul.copy_from(base::span_from_ref('\0'));
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return ret;
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}
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char* CheckOpValueStr(base::cstring_view v) {
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return strdup(v.c_str());
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}
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char* CheckOpValueStr(double v) {
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char buf[50];
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snprintf(buf, sizeof(buf), "%.6lf", v);
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return strdup(buf);
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}
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char* StreamValToStr(const void* v,
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void (*stream_func)(std::ostream&, const void*)) {
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std::stringstream ss;
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stream_func(ss, v);
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return strdup(ss.str().c_str());
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}
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char* CreateCheckOpLogMessageString(const char* expr_str,
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char* v1_str,
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char* v2_str) {
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std::stringstream ss;
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ss << "Check failed: " << expr_str << " (" << v1_str << " vs. " << v2_str
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<< ")";
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free(v1_str);
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free(v2_str);
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return strdup(ss.str().c_str());
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}
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} // namespace logging
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