21031897445

Committed 15 Jan 2026 12:50PM UTC coverage: 90.037% (-0.4%) from 90.395%

Build # 21031897445

Build Type

Pull #5240

github

Committed by

web-flow

Commit Message

Merge 13ffffdd5 into 32478179d

Pull Request Pull Request #5240: Some changes to reduce time taken by the coverage build

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46.94

/src/lib/utils/socket/socket.cpp

/*
* (C) 2015,2016,2017 Jack Lloyd
* (C) 2016 Daniel Neus
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/internal/socket.h>

#include <botan/exceptn.h>
#include <botan/mem_ops.h>
#include <botan/internal/fmt.h>
#include <botan/internal/target_info.h>
#include <chrono>

#if defined(BOTAN_HAS_BOOST_ASIO)
   /*
  * We don't need serial port support anyway, and asking for it causes
  * macro conflicts with termios.h when this file is included in the
  * amalgamation.
  */
   #define BOOST_ASIO_DISABLE_SERIAL_PORT
   #include <boost/asio.hpp>
   #include <boost/asio/system_timer.hpp>

#elif defined(BOTAN_TARGET_OS_HAS_SOCKETS)
   #include <errno.h>
   #include <fcntl.h>
   #include <netdb.h>
   #include <netinet/in.h>
   #include <string.h>
   #include <sys/socket.h>
   #include <sys/time.h>
   #include <unistd.h>

#elif defined(BOTAN_TARGET_OS_HAS_WINSOCK2)
   #include <ws2tcpip.h>
#endif

namespace Botan {

namespace {

#if defined(BOTAN_HAS_BOOST_ASIO)

class Asio_Socket final : public OS::Socket {
   public:
      Asio_Socket(std::string_view hostname, std::string_view service, std::chrono::milliseconds timeout) :
            m_timeout(timeout), m_timer(m_io), m_tcp(m_io) {
         m_timer.expires_after(m_timeout);
         check_timeout();

         boost::asio::ip::tcp::resolver resolver(m_io);
         const boost::asio::ip::tcp::resolver::results_type dns_iter =
            resolver.resolve(std::string{hostname}, std::string{service});

         boost::system::error_code ec = boost::asio::error::would_block;

         auto connect_cb = [&ec](const boost::system::error_code& e, const auto&) { ec = e; };

         boost::asio::async_connect(m_tcp, dns_iter.begin(), dns_iter.end(), connect_cb);

         while(ec == boost::asio::error::would_block) {
            m_io.run_one();
         }

         if(ec) {
            throw boost::system::system_error(ec);
         }
         if(!m_tcp.is_open()) {
            throw System_Error(fmt("Connection to host {} failed", hostname));
         }
      }

      void write(std::span<const uint8_t> buf) override {
         m_timer.expires_after(m_timeout);

         boost::system::error_code ec = boost::asio::error::would_block;

         // Some versions of asio don't know about span...
         m_tcp.async_send(boost::asio::buffer(buf.data(), buf.size()),
                          [&ec](boost::system::error_code e, size_t) { ec = e; });

         while(ec == boost::asio::error::would_block) {
            m_io.run_one();
         }

         if(ec) {
            throw boost::system::system_error(ec);
         }
      }

      size_t read(uint8_t buf[], size_t len) override {
         m_timer.expires_after(m_timeout);

         boost::system::error_code ec = boost::asio::error::would_block;
         size_t got = 0;

         m_tcp.async_read_some(boost::asio::buffer(buf, len), [&](boost::system::error_code cb_ec, size_t cb_got) {
            ec = cb_ec;
            got = cb_got;
         });

         while(ec == boost::asio::error::would_block) {
            m_io.run_one();
         }

         if(ec) {
            if(ec == boost::asio::error::eof) {
               return 0;
            }
            throw boost::system::system_error(ec);  // Some other error.
         }

         return got;
      }

   private:
      void check_timeout() {
         if(m_tcp.is_open() && m_timer.expiry() < std::chrono::system_clock::now()) {
            boost::system::error_code err;

            // NOLINTNEXTLINE(bugprone-unused-return-value,cert-err33-c)
            m_tcp.close(err);
         }

         // NOLINTNEXTLINE(*-avoid-bind) FIXME - unclear why we can't use a lambda here
         m_timer.async_wait(std::bind(&Asio_Socket::check_timeout, this));
      }

      const std::chrono::milliseconds m_timeout;
      boost::asio::io_context m_io;
      boost::asio::system_timer m_timer;
      boost::asio::ip::tcp::socket m_tcp;
};

#elif defined(BOTAN_TARGET_OS_HAS_SOCKETS) || defined(BOTAN_TARGET_OS_HAS_WINSOCK2)

class BSD_Socket final : public OS::Socket {
   private:
   #if defined(BOTAN_TARGET_OS_HAS_WINSOCK2)
      typedef SOCKET socket_type;
      typedef int socket_op_ret_type;
      typedef int socklen_type;
      typedef int sendrecv_len_type;

      static socket_type invalid_socket() { return INVALID_SOCKET; }

      static void close_socket(socket_type s) { ::closesocket(s); }

      static std::string get_last_socket_error() { return std::to_string(::WSAGetLastError()); }

      static bool nonblocking_connect_in_progress() { return (::WSAGetLastError() == WSAEWOULDBLOCK); }

      static void set_nonblocking(socket_type s) {
         u_long nonblocking = 1;
         ::ioctlsocket(s, FIONBIO, &nonblocking);
      }

      static void socket_init() {
         WSAData wsa_data;
         WORD wsa_version = MAKEWORD(2, 2);

         if(::WSAStartup(wsa_version, &wsa_data) != 0) {
            throw System_Error("WSAStartup() failed", WSAGetLastError());
         }

         if(LOBYTE(wsa_data.wVersion) != 2 || HIBYTE(wsa_data.wVersion) != 2) {
            ::WSACleanup();
            throw System_Error("Could not find a usable version of Winsock.dll");
         }
      }

      static void socket_fini() { ::WSACleanup(); }
   #else
      typedef int socket_type;
      typedef ssize_t socket_op_ret_type;
      typedef socklen_t socklen_type;
      typedef size_t sendrecv_len_type;

      static socket_type invalid_socket() { return -1; }

      static void close_socket(socket_type s) { ::close(s); }

      static std::string get_last_socket_error() { return ::strerror(errno); }

      static bool nonblocking_connect_in_progress() { return (errno == EINPROGRESS); }

      static void set_nonblocking(socket_type s) {
         // NOLINTNEXTLINE(*-vararg)
         if(::fcntl(s, F_SETFL, O_NONBLOCK) < 0) {
            throw System_Error("Setting socket to non-blocking state failed", errno);
         }
      }

      static void socket_init() {}

      static void socket_fini() {}
   #endif

   public:
      BSD_Socket(std::string_view hostname, std::string_view service, std::chrono::microseconds timeout) :
            m_timeout(timeout), m_socket(invalid_socket()) {
         socket_init();

         addrinfo hints{};
         hints.ai_family = AF_UNSPEC;
         hints.ai_socktype = SOCK_STREAM;
         addrinfo* res = nullptr;

         const std::string hostname_str(hostname);
         const std::string service_str(service);

         const int rc = ::getaddrinfo(hostname_str.c_str(), service_str.c_str(), &hints, &res);

         if(rc != 0) {
            throw System_Error(fmt("Name resolution failed for {}", hostname), rc);
         }

         for(const addrinfo* rp = res; (m_socket == invalid_socket()) && (rp != nullptr); rp = rp->ai_next) {
            if(rp->ai_family != AF_INET && rp->ai_family != AF_INET6) {
               continue;
            }

            m_socket = ::socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);

            if(m_socket == invalid_socket()) {
               // unsupported socket type?
               continue;
            }

            set_nonblocking(m_socket);

            const int err = ::connect(m_socket, rp->ai_addr, static_cast<socklen_type>(rp->ai_addrlen));

            if(err == -1) {
               int active = 0;
               if(nonblocking_connect_in_progress()) {
                  struct timeval timeout_tv = make_timeout_tv();
                  fd_set write_set;
                  FD_ZERO(&write_set);
                  FD_SET(m_socket, &write_set);

                  active = ::select(static_cast<int>(m_socket + 1), nullptr, &write_set, nullptr, &timeout_tv);

                  if(active > 0) {
                     int socket_error = 0;
                     socklen_t len = sizeof(socket_error);

                     if(::getsockopt(m_socket, SOL_SOCKET, SO_ERROR, reinterpret_cast<char*>(&socket_error), &len) <
                        0) {
                        throw System_Error("Error calling getsockopt", errno);
                     }

                     if(socket_error != 0) {
                        active = 0;
                     }
                  }
               }

               if(active == 0) {
                  close_socket(m_socket);
                  m_socket = invalid_socket();
                  continue;
               }
            }
         }

         ::freeaddrinfo(res);

         if(m_socket == invalid_socket()) {
            throw System_Error(fmt("Connecting to {} for service {} failed with errno {}", hostname, service, errno),
                               errno);
         }
      }

      ~BSD_Socket() override {
         close_socket(m_socket);
         m_socket = invalid_socket();
         socket_fini();
      }

      BSD_Socket(const BSD_Socket& other) = delete;
      BSD_Socket(BSD_Socket&& other) = delete;
      BSD_Socket& operator=(const BSD_Socket& other) = delete;
      BSD_Socket& operator=(BSD_Socket&& other) = delete;

      void write(std::span<const uint8_t> buf) override {
         fd_set write_set;
         FD_ZERO(&write_set);
         FD_SET(m_socket, &write_set);

         const size_t len = buf.size();

         size_t sent_so_far = 0;
         while(sent_so_far != len) {
            struct timeval timeout = make_timeout_tv();
            const int active = ::select(static_cast<int>(m_socket + 1), nullptr, &write_set, nullptr, &timeout);

            if(active == 0) {
               throw System_Error("Timeout during socket write");
            }

            const size_t left = len - sent_so_far;
            const socket_op_ret_type sent =
               ::send(m_socket, cast_uint8_ptr_to_char(&buf[sent_so_far]), static_cast<sendrecv_len_type>(left), 0);
            if(sent < 0) {
               throw System_Error("Socket write failed", errno);
            } else {
               sent_so_far += static_cast<size_t>(sent);
            }
         }
      }

      size_t read(uint8_t buf[], size_t len) override {
         fd_set read_set;
         FD_ZERO(&read_set);
         FD_SET(m_socket, &read_set);

         struct timeval timeout = make_timeout_tv();
         const int active = ::select(static_cast<int>(m_socket + 1), &read_set, nullptr, nullptr, &timeout);

         if(active == 0) {
            throw System_Error("Timeout during socket read");
         }

         const socket_op_ret_type got =
            ::recv(m_socket, cast_uint8_ptr_to_char(buf), static_cast<sendrecv_len_type>(len), 0);

         if(got < 0) {
            throw System_Error("Socket read failed", errno);
         }

         return static_cast<size_t>(got);
      }

   private:
      struct timeval make_timeout_tv() const {
         struct timeval tv {};

         tv.tv_sec = static_cast<decltype(timeval::tv_sec)>(m_timeout.count() / 1000000);
         tv.tv_usec = static_cast<decltype(timeval::tv_usec)>(m_timeout.count() % 1000000);
         return tv;
      }

      const std::chrono::microseconds m_timeout;
      socket_type m_socket;
};

#endif

}  // namespace

std::unique_ptr<OS::Socket> OS::open_socket(std::string_view hostname,
                                            std::string_view service,
                                            std::chrono::milliseconds timeout) {
#if defined(BOTAN_HAS_BOOST_ASIO)
   return std::make_unique<Asio_Socket>(hostname, service, timeout);

#elif defined(BOTAN_TARGET_OS_HAS_SOCKETS) || defined(BOTAN_TARGET_OS_HAS_WINSOCK2)
   return std::make_unique<BSD_Socket>(hostname, service, timeout);

#else
   BOTAN_UNUSED(hostname, service, timeout);
   // No sockets for you
   return std::unique_ptr<Socket>();
#endif
}

}  // namespace Botan

1	/*
2	* (C) 2015,2016,2017 Jack Lloyd
3	* (C) 2016 Daniel Neus
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#include <botan/internal/socket.h>
9
10	#include <botan/exceptn.h>
11	#include <botan/mem_ops.h>
12	#include <botan/internal/fmt.h>
13	#include <botan/internal/target_info.h>
14	#include <chrono>
15
16	#if defined(BOTAN_HAS_BOOST_ASIO)
17	/*
18	* We don't need serial port support anyway, and asking for it causes
19	* macro conflicts with termios.h when this file is included in the
20	* amalgamation.
21	*/
22	#define BOOST_ASIO_DISABLE_SERIAL_PORT
23	#include <boost/asio.hpp>
24	#include <boost/asio/system_timer.hpp>
25
26	#elif defined(BOTAN_TARGET_OS_HAS_SOCKETS)
27	#include <errno.h>
28	#include <fcntl.h>
29	#include <netdb.h>
30	#include <netinet/in.h>
31	#include <string.h>
32	#include <sys/socket.h>
33	#include <sys/time.h>
34	#include <unistd.h>
35
36	#elif defined(BOTAN_TARGET_OS_HAS_WINSOCK2)
37	#include <ws2tcpip.h>
38	#endif
39
40	namespace Botan {
41
42	namespace {
43
44	#if defined(BOTAN_HAS_BOOST_ASIO)
45
46	class Asio_Socket final : public OS::Socket {	×
47	public:
48	Asio_Socket(std::string_view hostname, std::string_view service, std::chrono::milliseconds timeout) :	1✔
49	m_timeout(timeout), m_timer(m_io), m_tcp(m_io) {	2✔
50	m_timer.expires_after(m_timeout);	1✔
51	check_timeout();	1✔
52
53	boost::asio::ip::tcp::resolver resolver(m_io);	1✔
54	const boost::asio::ip::tcp::resolver::results_type dns_iter =	1✔
55	resolver.resolve(std::string{hostname}, std::string{service});	4✔
56
57	boost::system::error_code ec = boost::asio::error::would_block;	1✔
58
59	auto connect_cb = [&ec](const boost::system::error_code& e, const auto&) { ec = e; };	1✔
60
61	boost::asio::async_connect(m_tcp, dns_iter.begin(), dns_iter.end(), connect_cb);	3✔
62
63	while(ec == boost::asio::error::would_block) {	3✔
64	m_io.run_one();	2✔
65	}
66
67	if(ec) {	1✔
68	throw boost::system::system_error(ec);	1✔
69	}
70	if(!m_tcp.is_open()) {	×
71	throw System_Error(fmt("Connection to host {} failed", hostname));	×
72	}
73	}	2✔
74
75	void write(std::span<const uint8_t> buf) override {	×
76	m_timer.expires_after(m_timeout);	×
77
78	boost::system::error_code ec = boost::asio::error::would_block;	×
79
80	// Some versions of asio don't know about span...
81	m_tcp.async_send(boost::asio::buffer(buf.data(), buf.size()),	×
82	[&ec](boost::system::error_code e, size_t) { ec = e; });	×
83
84	while(ec == boost::asio::error::would_block) {	×
85	m_io.run_one();	×
86	}
87
88	if(ec) {	×
89	throw boost::system::system_error(ec);	×
90	}
91	}	×
92
93	size_t read(uint8_t buf[], size_t len) override {	×
94	m_timer.expires_after(m_timeout);	×
95
96	boost::system::error_code ec = boost::asio::error::would_block;	×
97	size_t got = 0;	×
98
99	m_tcp.async_read_some(boost::asio::buffer(buf, len), [&](boost::system::error_code cb_ec, size_t cb_got) {	×
100	ec = cb_ec;	×
101	got = cb_got;	×
102	});
103
104	while(ec == boost::asio::error::would_block) {	×
105	m_io.run_one();	×
106	}
107
108	if(ec) {	×
109	if(ec == boost::asio::error::eof) {	×
110	return 0;
111	}
112	throw boost::system::system_error(ec); // Some other error.	×
113	}
114
115	return got;	×
116	}
117
118	private:
119	void check_timeout() {	2✔
120	if(m_tcp.is_open() && m_timer.expiry() < std::chrono::system_clock::now()) {	2✔
121	boost::system::error_code err;	1✔
122
123	// NOLINTNEXTLINE(bugprone-unused-return-value,cert-err33-c)
124	m_tcp.close(err);	1✔
125	}
126
127	// NOLINTNEXTLINE(*-avoid-bind) FIXME - unclear why we can't use a lambda here
128	m_timer.async_wait(std::bind(&Asio_Socket::check_timeout, this));	2✔
129	}	2✔
130
131	const std::chrono::milliseconds m_timeout;
132	boost::asio::io_context m_io;
133	boost::asio::system_timer m_timer;
134	boost::asio::ip::tcp::socket m_tcp;
135	};
136
137	#elif defined(BOTAN_TARGET_OS_HAS_SOCKETS) \|\| defined(BOTAN_TARGET_OS_HAS_WINSOCK2)
138
139	class BSD_Socket final : public OS::Socket {
140	private:
141	#if defined(BOTAN_TARGET_OS_HAS_WINSOCK2)
142	typedef SOCKET socket_type;
143	typedef int socket_op_ret_type;
144	typedef int socklen_type;
145	typedef int sendrecv_len_type;
146
147	static socket_type invalid_socket() { return INVALID_SOCKET; }
148
149	static void close_socket(socket_type s) { ::closesocket(s); }
150
151	static std::string get_last_socket_error() { return std::to_string(::WSAGetLastError()); }
152
153	static bool nonblocking_connect_in_progress() { return (::WSAGetLastError() == WSAEWOULDBLOCK); }
154
155	static void set_nonblocking(socket_type s) {
156	u_long nonblocking = 1;
157	::ioctlsocket(s, FIONBIO, &nonblocking);
158	}
159
160	static void socket_init() {
161	WSAData wsa_data;
162	WORD wsa_version = MAKEWORD(2, 2);
163
164	if(::WSAStartup(wsa_version, &wsa_data) != 0) {
165	throw System_Error("WSAStartup() failed", WSAGetLastError());
166	}
167
168	if(LOBYTE(wsa_data.wVersion) != 2 \|\| HIBYTE(wsa_data.wVersion) != 2) {
169	::WSACleanup();
170	throw System_Error("Could not find a usable version of Winsock.dll");
171	}
172	}
173
174	static void socket_fini() { ::WSACleanup(); }
175	#else
176	typedef int socket_type;
177	typedef ssize_t socket_op_ret_type;
178	typedef socklen_t socklen_type;
179	typedef size_t sendrecv_len_type;
180
181	static socket_type invalid_socket() { return -1; }
182
183	static void close_socket(socket_type s) { ::close(s); }
184
185	static std::string get_last_socket_error() { return ::strerror(errno); }
186
187	static bool nonblocking_connect_in_progress() { return (errno == EINPROGRESS); }
188
189	static void set_nonblocking(socket_type s) {
190	// NOLINTNEXTLINE(*-vararg)
191	if(::fcntl(s, F_SETFL, O_NONBLOCK) < 0) {
192	throw System_Error("Setting socket to non-blocking state failed", errno);
193	}
194	}
195
196	static void socket_init() {}
197
198	static void socket_fini() {}
199	#endif
200
201	public:
202	BSD_Socket(std::string_view hostname, std::string_view service, std::chrono::microseconds timeout) :
203	m_timeout(timeout), m_socket(invalid_socket()) {
204	socket_init();
205
206	addrinfo hints{};
207	hints.ai_family = AF_UNSPEC;
208	hints.ai_socktype = SOCK_STREAM;
209	addrinfo* res = nullptr;
210
211	const std::string hostname_str(hostname);
212	const std::string service_str(service);
213
214	const int rc = ::getaddrinfo(hostname_str.c_str(), service_str.c_str(), &hints, &res);
215
216	if(rc != 0) {
217	throw System_Error(fmt("Name resolution failed for {}", hostname), rc);
218	}
219
220	for(const addrinfo* rp = res; (m_socket == invalid_socket()) && (rp != nullptr); rp = rp->ai_next) {
221	if(rp->ai_family != AF_INET && rp->ai_family != AF_INET6) {
222	continue;
223	}
224
225	m_socket = ::socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
226
227	if(m_socket == invalid_socket()) {
228	// unsupported socket type?
229	continue;
230	}
231
232	set_nonblocking(m_socket);
233
234	const int err = ::connect(m_socket, rp->ai_addr, static_cast<socklen_type>(rp->ai_addrlen));
235
236	if(err == -1) {
237	int active = 0;
238	if(nonblocking_connect_in_progress()) {
239	struct timeval timeout_tv = make_timeout_tv();
240	fd_set write_set;
241	FD_ZERO(&write_set);
242	FD_SET(m_socket, &write_set);
243
244	active = ::select(static_cast<int>(m_socket + 1), nullptr, &write_set, nullptr, &timeout_tv);
245
246	if(active > 0) {
247	int socket_error = 0;
248	socklen_t len = sizeof(socket_error);
249
250	if(::getsockopt(m_socket, SOL_SOCKET, SO_ERROR, reinterpret_cast<char*>(&socket_error), &len) <
251	0) {
252	throw System_Error("Error calling getsockopt", errno);
253	}
254
255	if(socket_error != 0) {
256	active = 0;
257	}
258	}
259	}
260
261	if(active == 0) {
262	close_socket(m_socket);
263	m_socket = invalid_socket();
264	continue;
265	}
266	}
267	}
268
269	::freeaddrinfo(res);
270
271	if(m_socket == invalid_socket()) {
272	throw System_Error(fmt("Connecting to {} for service {} failed with errno {}", hostname, service, errno),
273	errno);
274	}
275	}
276
277	~BSD_Socket() override {
278	close_socket(m_socket);
279	m_socket = invalid_socket();
280	socket_fini();
281	}
282
283	BSD_Socket(const BSD_Socket& other) = delete;
284	BSD_Socket(BSD_Socket&& other) = delete;
285	BSD_Socket& operator=(const BSD_Socket& other) = delete;
286	BSD_Socket& operator=(BSD_Socket&& other) = delete;
287
288	void write(std::span<const uint8_t> buf) override {
289	fd_set write_set;
290	FD_ZERO(&write_set);
291	FD_SET(m_socket, &write_set);
292
293	const size_t len = buf.size();
294
295	size_t sent_so_far = 0;
296	while(sent_so_far != len) {
297	struct timeval timeout = make_timeout_tv();
298	const int active = ::select(static_cast<int>(m_socket + 1), nullptr, &write_set, nullptr, &timeout);
299
300	if(active == 0) {
301	throw System_Error("Timeout during socket write");
302	}
303
304	const size_t left = len - sent_so_far;
305	const socket_op_ret_type sent =
306	::send(m_socket, cast_uint8_ptr_to_char(&buf[sent_so_far]), static_cast<sendrecv_len_type>(left), 0);
307	if(sent < 0) {
308	throw System_Error("Socket write failed", errno);
309	} else {
310	sent_so_far += static_cast<size_t>(sent);
311	}
312	}
313	}
314
315	size_t read(uint8_t buf[], size_t len) override {
316	fd_set read_set;
317	FD_ZERO(&read_set);
318	FD_SET(m_socket, &read_set);
319
320	struct timeval timeout = make_timeout_tv();
321	const int active = ::select(static_cast<int>(m_socket + 1), &read_set, nullptr, nullptr, &timeout);
322
323	if(active == 0) {
324	throw System_Error("Timeout during socket read");
325	}
326
327	const socket_op_ret_type got =
328	::recv(m_socket, cast_uint8_ptr_to_char(buf), static_cast<sendrecv_len_type>(len), 0);
329
330	if(got < 0) {
331	throw System_Error("Socket read failed", errno);
332	}
333
334	return static_cast<size_t>(got);
335	}
336
337	private:
338	struct timeval make_timeout_tv() const {
339	struct timeval tv {};
340
341	tv.tv_sec = static_cast<decltype(timeval::tv_sec)>(m_timeout.count() / 1000000);
342	tv.tv_usec = static_cast<decltype(timeval::tv_usec)>(m_timeout.count() % 1000000);
343	return tv;
344	}
345
346	const std::chrono::microseconds m_timeout;
347	socket_type m_socket;
348	};
349
350	#endif
351
352	} // namespace
353
354	std::unique_ptr<OS::Socket> OS::open_socket(std::string_view hostname,	1✔
355	std::string_view service,
356	std::chrono::milliseconds timeout) {
357	#if defined(BOTAN_HAS_BOOST_ASIO)
358	return std::make_unique<Asio_Socket>(hostname, service, timeout);	1✔
359
360	#elif defined(BOTAN_TARGET_OS_HAS_SOCKETS) \|\| defined(BOTAN_TARGET_OS_HAS_WINSOCK2)
361	return std::make_unique<BSD_Socket>(hostname, service, timeout);
362
363	#else
364	BOTAN_UNUSED(hostname, service, timeout);
365	// No sockets for you
366	return std::unique_ptr<Socket>();
367	#endif
368	}
369
370	} // namespace Botan

randombit / botan / 21031897445

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