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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	node_sockaddr-inl.h	Lines:	112	116	96.6 %
Date:	2022-08-17 04:19:55	Branches:	35	42	83.3 %


#ifndef SRC_NODE_SOCKADDR_INL_H_
#define SRC_NODE_SOCKADDR_INL_H_

#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#include "node.h"
#include "env-inl.h"
#include "node_internals.h"
#include "node_sockaddr.h"
#include "util-inl.h"
#include "memory_tracker-inl.h"

#include <string>

namespace node {

static constexpr uint32_t kLabelMask = 0xFFFFF;

inline void hash_combine(size_t* seed) { }

template <typename T, typename... Args>
inline void hash_combine(size_t* seed, const T& value, Args... rest) {
    *seed ^= std::hash<T>{}(value) + 0x9e3779b9 + (*seed << 6) + (*seed >> 2);
    hash_combine(seed, rest...);
}

bool SocketAddress::is_numeric_host(const char* hostname) {
  return is_numeric_host(hostname, AF_INET) ||
         is_numeric_host(hostname, AF_INET6);
}

bool SocketAddress::is_numeric_host(const char* hostname, int family) {
  in6_addr dst;
  return inet_pton(family, hostname, &dst) == 1;
}

int SocketAddress::GetPort(const sockaddr* addr) {
  CHECK(addr->sa_family == AF_INET || addr->sa_family == AF_INET6);
  return ntohs(addr->sa_family == AF_INET ?
      reinterpret_cast<const sockaddr_in*>(addr)->sin_port :
      reinterpret_cast<const sockaddr_in6*>(addr)->sin6_port);
}

int SocketAddress::GetPort(const sockaddr_storage* addr) {
  return GetPort(reinterpret_cast<const sockaddr*>(addr));
}

std::string SocketAddress::GetAddress(const sockaddr* addr) {
  CHECK(addr->sa_family == AF_INET || addr->sa_family == AF_INET6);
  char host[INET6_ADDRSTRLEN];
  const void* src = addr->sa_family == AF_INET ?
      static_cast<const void*>(
          &(reinterpret_cast<const sockaddr_in*>(addr)->sin_addr)) :
      static_cast<const void*>(
          &(reinterpret_cast<const sockaddr_in6*>(addr)->sin6_addr));
  uv_inet_ntop(addr->sa_family, src, host, INET6_ADDRSTRLEN);
  return std::string(host);
}

std::string SocketAddress::GetAddress(const sockaddr_storage* addr) {
  return GetAddress(reinterpret_cast<const sockaddr*>(addr));
}

size_t SocketAddress::GetLength(const sockaddr* addr) {
  return addr->sa_family == AF_INET ?
      sizeof(sockaddr_in) : sizeof(sockaddr_in6);
}

size_t SocketAddress::GetLength(const sockaddr_storage* addr) {
  return GetLength(reinterpret_cast<const sockaddr*>(addr));
}

SocketAddress::SocketAddress(const sockaddr* addr) {
  memcpy(&address_, addr, GetLength(addr));
}

SocketAddress::SocketAddress(const SocketAddress& addr) {
  memcpy(&address_, &addr.address_, addr.length());
}

SocketAddress& SocketAddress::operator=(const sockaddr* addr) {
  memcpy(&address_, addr, GetLength(addr));
  return *this;
}

SocketAddress& SocketAddress::operator=(const SocketAddress& addr) {
  memcpy(&address_, &addr.address_, addr.length());
  return *this;
}

const sockaddr& SocketAddress::operator*() const {
  return *data();
}

const sockaddr* SocketAddress::operator->() const {
  return data();
}

size_t SocketAddress::length() const {
  return GetLength(&address_);
}

const sockaddr* SocketAddress::data() const {
  return reinterpret_cast<const sockaddr*>(&address_);
}

const uint8_t* SocketAddress::raw() const {
  return reinterpret_cast<const uint8_t*>(&address_);
}

sockaddr* SocketAddress::storage() {
  return reinterpret_cast<sockaddr*>(&address_);
}

int SocketAddress::family() const {
  return address_.ss_family;
}

std::string SocketAddress::address() const {
  return GetAddress(&address_);
}

int SocketAddress::port() const {
  return GetPort(&address_);
}

uint32_t SocketAddress::flow_label() const {
  if (family() != AF_INET6)
    return 0;
  const sockaddr_in6* in = reinterpret_cast<const sockaddr_in6*>(data());
  return in->sin6_flowinfo;
}

void SocketAddress::set_flow_label(uint32_t label) {
  if (family() != AF_INET6)
    return;
  CHECK_LE(label, kLabelMask);
  sockaddr_in6* in = reinterpret_cast<sockaddr_in6*>(&address_);
  in->sin6_flowinfo = label;
}

std::string SocketAddress::ToString() const {
  if (family() != AF_INET && family() != AF_INET6) return "";
  return (family() == AF_INET6 ?
              std::string("[") + address() + "]:" :
              address() + ":") +
      std::to_string(port());
}

void SocketAddress::Update(uint8_t* data, size_t len) {
  CHECK_LE(len, sizeof(address_));
  memcpy(&address_, data, len);
}

void SocketAddress::Update(const sockaddr* data, size_t len) {
  CHECK_LE(len, sizeof(address_));
  memcpy(&address_, data, len);
}

v8::MaybeLocal<v8::Object> SocketAddress::ToJS(
    Environment* env,
    v8::Local<v8::Object> info) const {
  return AddressToJS(env, data(), info);
}

bool SocketAddress::operator==(const SocketAddress& other) const {
  if (family() != other.family()) return false;
  return memcmp(raw(), other.raw(), length()) == 0;
}

bool SocketAddress::operator!=(const SocketAddress& other) const {
  return !(*this == other);
}

bool SocketAddress::operator<(const SocketAddress& other) const {
  return compare(other) == CompareResult::LESS_THAN;
}

bool SocketAddress::operator>(const SocketAddress& other) const {
  return compare(other) == CompareResult::GREATER_THAN;
}

bool SocketAddress::operator<=(const SocketAddress& other) const {
  CompareResult c = compare(other);
  return c == CompareResult::NOT_COMPARABLE ? false :
              c <= CompareResult::SAME;
}

bool SocketAddress::operator>=(const SocketAddress& other) const {
  return compare(other) >= CompareResult::SAME;
}

template <typename T>
SocketAddressLRU<T>::SocketAddressLRU(
    size_t max_size)
    : max_size_(max_size) {}

template <typename T>
typename T::Type* SocketAddressLRU<T>::Peek(
    const SocketAddress& address) const {
  auto it = map_.find(address);
  return it == std::end(map_) ? nullptr : &it->second->second;
}

template <typename T>
void SocketAddressLRU<T>::CheckExpired() {
  auto it = list_.rbegin();
  while (it != list_.rend()) {
    if (T::CheckExpired(it->first, it->second)) {
      map_.erase(it->first);
      list_.pop_back();
      it = list_.rbegin();
      continue;
    } else {
      break;
    }
  }
}

template <typename T>
void SocketAddressLRU<T>::MemoryInfo(MemoryTracker* tracker) const {
  tracker->TrackFieldWithSize("list", size() * sizeof(Pair));
}

// If an item already exists for the given address, bump up it's
// position in the LRU list and return it. If the item does not
// exist, create it. If an item is created, check the size of the
// cache and adjust if necessary. Whether the item exists or not,
// purge expired items.
template <typename T>
typename T::Type* SocketAddressLRU<T>::Upsert(
    const SocketAddress& address) {

  auto on_exit = OnScopeLeave([&]() { CheckExpired(); });

  auto it = map_.find(address);
  if (it != std::end(map_)) {
    list_.splice(list_.begin(), list_, it->second);
    T::Touch(it->first, &it->second->second);
    return &it->second->second;
  }

  list_.push_front(Pair(address, { }));
  map_[address] = list_.begin();
  T::Touch(list_.begin()->first, &list_.begin()->second);

  // Drop the last item in the list if we are
  // over the size limit...
  if (map_.size() > max_size_) {
    auto last = list_.end();
    map_.erase((--last)->first);
    list_.pop_back();
  }

  return &map_[address]->second;
}

v8::MaybeLocal<v8::Value> SocketAddressBlockList::Rule::ToV8String(
    Environment* env) {
  std::string str = ToString();
  return ToV8Value(env->context(), str);
}
}  // namespace node

#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#endif  // SRC_NODE_SOCKADDR_INL_H_


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			#ifndef SRC_NODE_SOCKADDR_INL_H_
2			#define SRC_NODE_SOCKADDR_INL_H_
3
4			#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
5
6			#include "node.h"
7			#include "env-inl.h"
8			#include "node_internals.h"
9			#include "node_sockaddr.h"
10			#include "util-inl.h"
11			#include "memory_tracker-inl.h"
12
13			#include <string>
14
15			namespace node {
16
17			static constexpr uint32_t kLabelMask = 0xFFFFF;
18
19		6115	inline void hash_combine(size_t* seed) { }
20
21			template <typename T, typename... Args>
22		36614	inline void hash_combine(size_t* seed, const T& value, Args... rest) {
23		36614	seed ^= std::hash<T>{}(value) + 0x9e3779b9 + (seed << 6) + (*seed >> 2);
24		36614	hash_combine(seed, rest...);
25		36614	}
26
27		2	bool SocketAddress::is_numeric_host(const char* hostname) {
28	✓✓✗✓	3	return is_numeric_host(hostname, AF_INET) \|\|
29		3	is_numeric_host(hostname, AF_INET6);
30			}
31
32		3	bool SocketAddress::is_numeric_host(const char* hostname, int family) {
33			in6_addr dst;
34		3	return inet_pton(family, hostname, &dst) == 1;
35			}
36
37		18458	int SocketAddress::GetPort(const sockaddr* addr) {
38	✓✓✗✓	18458	CHECK(addr->sa_family == AF_INET \|\| addr->sa_family == AF_INET6);
39	✓✓	18458	return ntohs(addr->sa_family == AF_INET ?
40		12282	reinterpret_cast<const sockaddr_in*>(addr)->sin_port :
41		18458	reinterpret_cast<const sockaddr_in6*>(addr)->sin6_port);
42			}
43
44		18458	int SocketAddress::GetPort(const sockaddr_storage* addr) {
45		18458	return GetPort(reinterpret_cast<const sockaddr*>(addr));
46			}
47
48		18462	std::string SocketAddress::GetAddress(const sockaddr* addr) {
49	✓✓✗✓	18462	CHECK(addr->sa_family == AF_INET \|\| addr->sa_family == AF_INET6);
50			char host[INET6_ADDRSTRLEN];
51	✓✓	18462	const void* src = addr->sa_family == AF_INET ?
52			static_cast<const void*>(
53			&(reinterpret_cast<const sockaddr_in*>(addr)->sin_addr)) :
54			static_cast<const void*>(
55			&(reinterpret_cast<const sockaddr_in6*>(addr)->sin6_addr));
56		18462	uv_inet_ntop(addr->sa_family, src, host, INET6_ADDRSTRLEN);
57		18462	return std::string(host);
58			}
59
60		18462	std::string SocketAddress::GetAddress(const sockaddr_storage* addr) {
61		18462	return GetAddress(reinterpret_cast<const sockaddr*>(addr));
62			}
63
64		6132	size_t SocketAddress::GetLength(const sockaddr* addr) {
65	✓✓	6132	return addr->sa_family == AF_INET ?
66		6132	sizeof(sockaddr_in) : sizeof(sockaddr_in6);
67			}
68
69		6117	size_t SocketAddress::GetLength(const sockaddr_storage* addr) {
70		6117	return GetLength(reinterpret_cast<const sockaddr*>(addr));
71			}
72
73		15	SocketAddress::SocketAddress(const sockaddr* addr) {
74		15	memcpy(&address_, addr, GetLength(addr));
75		15	}
76
77		6094	SocketAddress::SocketAddress(const SocketAddress& addr) {
78		6094	memcpy(&address_, &addr.address_, addr.length());
79		6094	}
80
81			SocketAddress& SocketAddress::operator=(const sockaddr* addr) {
82			memcpy(&address_, addr, GetLength(addr));
83			return *this;
84			}
85
86			SocketAddress& SocketAddress::operator=(const SocketAddress& addr) {
87			memcpy(&address_, &addr.address_, addr.length());
88			return *this;
89			}
90
91			const sockaddr& SocketAddress::operator*() const {
92			return *data();
93			}
94
95			const sockaddr* SocketAddress::operator->() const {
96			return data();
97			}
98
99		6117	size_t SocketAddress::length() const {
100		6117	return GetLength(&address_);
101			}
102
103		19222	const sockaddr* SocketAddress::data() const {
104		19222	return reinterpret_cast<const sockaddr*>(&address_);
105			}
106
107		6155	const uint8_t* SocketAddress::raw() const {
108		6155	return reinterpret_cast<const uint8_t*>(&address_);
109			}
110
111		18458	sockaddr* SocketAddress::storage() {
112		18458	return reinterpret_cast<sockaddr*>(&address_);
113			}
114
115		74597	int SocketAddress::family() const {
116		74597	return address_.ss_family;
117			}
118
119		18462	std::string SocketAddress::address() const {
120		18462	return GetAddress(&address_);
121			}
122
123		18458	int SocketAddress::port() const {
124		18458	return GetPort(&address_);
125			}
126
127		18465	uint32_t SocketAddress::flow_label() const {
128	✓✓	18465	if (family() != AF_INET6)
129		12287	return 0;
130		6178	const sockaddr_in6* in = reinterpret_cast<const sockaddr_in6*>(data());
131		6178	return in->sin6_flowinfo;
132			}
133
134		18456	void SocketAddress::set_flow_label(uint32_t label) {
135	✓✓	18456	if (family() != AF_INET6)
136		12280	return;
137	✗✓	6176	CHECK_LE(label, kLabelMask);
138		6176	sockaddr_in6* in = reinterpret_cast<sockaddr_in6*>(&address_);
139		6176	in->sin6_flowinfo = label;
140			}
141
142			std::string SocketAddress::ToString() const {
143			if (family() != AF_INET && family() != AF_INET6) return "";
144			return (family() == AF_INET6 ?
145			std::string("[") + address() + "]:" :
146			address() + ":") +
147			std::to_string(port());
148			}
149
150		1	void SocketAddress::Update(uint8_t* data, size_t len) {
151	✗✓	1	CHECK_LE(len, sizeof(address_));
152		1	memcpy(&address_, data, len);
153		1	}
154
155			void SocketAddress::Update(const sockaddr* data, size_t len) {
156			CHECK_LE(len, sizeof(address_));
157			memcpy(&address_, data, len);
158			}
159
160			v8::MaybeLocal<v8::Object> SocketAddress::ToJS(
161			Environment* env,
162			v8::Local<v8::Object> info) const {
163			return AddressToJS(env, data(), info);
164			}
165
166		20	bool SocketAddress::operator==(const SocketAddress& other) const {
167	✗✓	20	if (family() != other.family()) return false;
168		20	return memcmp(raw(), other.raw(), length()) == 0;
169			}
170
171		1	bool SocketAddress::operator!=(const SocketAddress& other) const {
172		1	return !(*this == other);
173			}
174
175		5	bool SocketAddress::operator<(const SocketAddress& other) const {
176		5	return compare(other) == CompareResult::LESS_THAN;
177			}
178
179		6085	bool SocketAddress::operator>(const SocketAddress& other) const {
180		6085	return compare(other) == CompareResult::GREATER_THAN;
181			}
182
183		86	bool SocketAddress::operator<=(const SocketAddress& other) const {
184		86	CompareResult c = compare(other);
185	✓✓✓✓	86	return c == CompareResult::NOT_COMPARABLE ? false :
186		86	c <= CompareResult::SAME;
187			}
188
189		149	bool SocketAddress::operator>=(const SocketAddress& other) const {
190		149	return compare(other) >= CompareResult::SAME;
191			}
192
193			template <typename T>
194		1	SocketAddressLRU<T>::SocketAddressLRU(
195			size_t max_size)
196		1	: max_size_(max_size) {}
197
198			template <typename T>
199		11	typename T::Type* SocketAddressLRU<T>::Peek(
200			const SocketAddress& address) const {
201		11	auto it = map_.find(address);
202	✓✓	11	return it == std::end(map_) ? nullptr : &it->second->second;
203			}
204
205			template <typename T>
206		4	void SocketAddressLRU<T>::CheckExpired() {
207		4	auto it = list_.rbegin();
208	✓✗	5	while (it != list_.rend()) {
209	✓✓	5	if (T::CheckExpired(it->first, it->second)) {
210		1	map_.erase(it->first);
211		1	list_.pop_back();
212		1	it = list_.rbegin();
213		1	continue;
214			} else {
215		4	break;
216			}
217			}
218		4	}
219
220			template <typename T>
221			void SocketAddressLRU<T>::MemoryInfo(MemoryTracker* tracker) const {
222			tracker->TrackFieldWithSize("list", size() * sizeof(Pair));
223			}
224
225			// If an item already exists for the given address, bump up it's
226			// position in the LRU list and return it. If the item does not
227			// exist, create it. If an item is created, check the size of the
228			// cache and adjust if necessary. Whether the item exists or not,
229			// purge expired items.
230			template <typename T>
231		4	typename T::Type* SocketAddressLRU<T>::Upsert(
232			const SocketAddress& address) {
233
234		12	auto on_exit = OnScopeLeave([&]() { CheckExpired(); });
235
236		4	auto it = map_.find(address);
237	✓✓	4	if (it != std::end(map_)) {
238		1	list_.splice(list_.begin(), list_, it->second);
239		1	T::Touch(it->first, &it->second->second);
240		1	return &it->second->second;
241			}
242
243		3	list_.push_front(Pair(address, { }));
244		3	map_[address] = list_.begin();
245		3	T::Touch(list_.begin()->first, &list_.begin()->second);
246
247			// Drop the last item in the list if we are
248			// over the size limit...
249	✓✓	3	if (map_.size() > max_size_) {
250		1	auto last = list_.end();
251		1	map_.erase((--last)->first);
252		1	list_.pop_back();
253			}
254
255		3	return &map_[address]->second;
256			}
257
258		3	v8::MaybeLocal<v8::Value> SocketAddressBlockList::Rule::ToV8String(
259			Environment* env) {
260		6	std::string str = ToString();
261		3	return ToV8Value(env->context(), str);
262			}
263			} // namespace node
264
265			#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
266			#endif // SRC_NODE_SOCKADDR_INL_H_