{"id":135518,"date":"2024-03-26T11:59:23","date_gmt":"2024-03-26T02:59:23","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/winsock%e3%82%92%e7%94%a8%e3%81%84%e3%81%9ftcp%e3%81%ab%e3%82%88%e3%82%8b%e3%83%87%e3%83%bc%e3%82%bf%e3%82%bb%e3%82%b0%e3%83%a1%e3%83%b3%e3%83%88%e9%80%81%e4%bf%a1\/"},"modified":"2024-04-04T14:05:02","modified_gmt":"2024-04-04T05:05:02","slug":"winsock%e3%82%92%e7%94%a8%e3%81%84%e3%81%9ftcp%e3%81%ab%e3%82%88%e3%82%8b%e3%83%87%e3%83%bc%e3%82%bf%e3%82%bb%e3%82%b0%e3%83%a1%e3%83%b3%e3%83%88%e9%80%81%e4%bf%a1","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/winsock%e3%82%92%e7%94%a8%e3%81%84%e3%81%9ftcp%e3%81%ab%e3%82%88%e3%82%8b%e3%83%87%e3%83%bc%e3%82%bf%e3%82%bb%e3%82%b0%e3%83%a1%e3%83%b3%e3%83%88%e9%80%81%e4%bf%a1\/","title":{"rendered":"Winsock\u3092\u7528\u3044\u305fTCP\u306b\u3088\u308b\u30c7\u30fc\u30bf\u30bb\u30b0\u30e1\u30f3\u30c8\u9001\u4fe1"},"content":{"rendered":"<p>\u307e\u305a\u306fWinsock2.h\u3068\u3044\u3046\u30d8\u30c3\u30c0\u30fc\u30d5\u30a1\u30a4\u30eb\u3092\u542b\u3093\u3067\u3001ws2_32.lib\u3068\u3044\u3046\u30e9\u30a4\u30d6\u30e9\u30ea\u30d5\u30a1\u30a4\u30eb\u3092\u30ea\u30f3\u30af\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u5f8c\u3001Winsock\u3092\u4ecb\u3057\u3066TCP\u3067\u30c7\u30fc\u30bf\u30bb\u30b0\u30e1\u30f3\u30c8\u3092\u9001\u4fe1\u3059\u308b\u624b\u9806\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li>WSA\u30b9\u30bf\u30fc\u30c8\u30a2\u30c3\u30d7<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>WSADATA wsaData;\r\n<span class=\"hljs-keyword\">if<\/span> (<span class=\"hljs-built_in\">WSAStartup<\/span>(<span class=\"hljs-built_in\">MAKEWORD<\/span>(<span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">2<\/span>), &amp;wsaData) != <span class=\"hljs-number\">0<\/span>) {\r\n<span class=\"hljs-comment\">\/\/ \u521d\u59cb\u5316\u5931\u8d25<\/span>\r\n<span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">-1<\/span>;\r\n}\r\n<\/code><\/pre>\n<ol>\n<li>\u30bd\u30b1\u30c3\u30c8<\/li>\n<li>AF_INET<\/li>\n<li>SOCK_STREAM<\/li>\n<li>IPPROTO_TCP<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>SOCKET clientSocket = <span class=\"hljs-built_in\">socket<\/span>(AF_INET, SOCK_STREAM, IPPROTO_TCP);\r\n<span class=\"hljs-keyword\">if<\/span> (clientSocket == INVALID_SOCKET) {\r\n<span class=\"hljs-comment\">\/\/ \u521b\u5efa\u5957\u63a5\u5b57\u5931\u8d25<\/span>\r\n<span class=\"hljs-built_in\">WSACleanup<\/span>();\r\n<span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">-1<\/span>;\r\n}\r\n<\/code><\/pre>\n<ol>\n<li>sockaddr_in\u69cb\u9020\u4f53<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>sockaddr_in serverAddress;\r\nserverAddress.sin_family = AF_INET;\r\nserverAddress.sin_port = <span class=\"hljs-built_in\">htons<\/span>(<span class=\"hljs-number\">12345<\/span>); <span class=\"hljs-comment\">\/\/ \u8bbe\u7f6e\u670d\u52a1\u5668\u7aef\u53e3\u53f7<\/span>\r\nserverAddress.sin_addr.s_addr = <span class=\"hljs-built_in\">inet_addr<\/span>(<span class=\"hljs-string\">\"127.0.0.1\"<\/span>); <span class=\"hljs-comment\">\/\/ \u8bbe\u7f6e\u670d\u52a1\u5668IP\u5730\u5740<\/span>\r\n<\/code><\/pre>\n<ol>\n<li>\u63a5\u7d9a\u3059\u308b<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">if<\/span> (<span class=\"hljs-built_in\">connect<\/span>(clientSocket, (sockaddr*)&amp;serverAddress, <span class=\"hljs-built_in\">sizeof<\/span>(serverAddress)) == SOCKET_ERROR) {\r\n<span class=\"hljs-comment\">\/\/ \u8fde\u63a5\u5931\u8d25<\/span>\r\n<span class=\"hljs-built_in\">closesocket<\/span>(clientSocket);\r\n<span class=\"hljs-built_in\">WSACleanup<\/span>();\r\n<span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">-1<\/span>;\r\n}\r\n<\/code><\/pre>\n<ol>\n<li>\u9001\u4fe1<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-type\">const<\/span> <span class=\"hljs-type\">char<\/span>* data = <span class=\"hljs-string\">\"Hello, Server!\"<\/span>;\r\n<span class=\"hljs-type\">int<\/span> dataLength = <span class=\"hljs-built_in\">strlen<\/span>(data);\r\n<span class=\"hljs-type\">int<\/span> bytesSent = <span class=\"hljs-built_in\">send<\/span>(clientSocket, data, dataLength, <span class=\"hljs-number\">0<\/span>);\r\n<span class=\"hljs-keyword\">if<\/span> (bytesSent == SOCKET_ERROR) {\r\n<span class=\"hljs-comment\">\/\/ \u53d1\u9001\u5931\u8d25<\/span>\r\n<span class=\"hljs-built_in\">closesocket<\/span>(clientSocket);\r\n<span class=\"hljs-built_in\">WSACleanup<\/span>();\r\n<span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">-1<\/span>;\r\n}\r\n<\/code><\/pre>\n<ol>\n<li>\u30bd\u30b1\u30c3\u30c8\u3092\u9589\u3058\u308b<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-built_in\">closesocket<\/span>(clientSocket);\r\n<\/code><\/pre>\n<ol>\n<li>WinSock \u306e\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-built_in\">WSACleanup<\/span>();\r\n<\/code><\/pre>\n<p>\u30cd\u30a4\u30c6\u30a3\u30d6\u306a\u5b9f\u88c5\u306e\u5b8c\u5168\u306a\u30b3\u30fc\u30c9\u4f8b\u3092\u6b21\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-meta\">#<span class=\"hljs-keyword\">include<\/span> <span class=\"hljs-string\">&lt;iostream&gt;<\/span><\/span>\r\n<span class=\"hljs-meta\">#<span class=\"hljs-keyword\">include<\/span> <span class=\"hljs-string\">&lt;winsock2.h&gt;<\/span><\/span>\r\n<span class=\"hljs-meta\">#<span class=\"hljs-keyword\">pragma<\/span> comment(lib, <span class=\"hljs-string\">\"ws2_32.lib\"<\/span>)<\/span>\r\n<span class=\"hljs-function\"><span class=\"hljs-type\">int<\/span> <span class=\"hljs-title\">main<\/span><span class=\"hljs-params\">()<\/span> <\/span>{\r\n<span class=\"hljs-comment\">\/\/ \u521d\u59cb\u5316 Winsock \u5e93<\/span>\r\nWSADATA wsaData;\r\n<span class=\"hljs-keyword\">if<\/span> (<span class=\"hljs-built_in\">WSAStartup<\/span>(<span class=\"hljs-built_in\">MAKEWORD<\/span>(<span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">2<\/span>), &amp;wsaData) != <span class=\"hljs-number\">0<\/span>) {\r\nstd::cout &lt;&lt; <span class=\"hljs-string\">\"Failed to initialize Winsock\"<\/span> &lt;&lt; std::endl;\r\n<span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">-1<\/span>;\r\n}\r\n<span class=\"hljs-comment\">\/\/ \u521b\u5efa\u5957\u63a5\u5b57<\/span>\r\nSOCKET clientSocket = <span class=\"hljs-built_in\">socket<\/span>(AF_INET, SOCK_STREAM, IPPROTO_TCP);\r\n<span class=\"hljs-keyword\">if<\/span> (clientSocket == INVALID_SOCKET) {\r\nstd::cout &lt;&lt; <span class=\"hljs-string\">\"Failed to create socket\"<\/span> &lt;&lt; std::endl;\r\n<span class=\"hljs-built_in\">WSACleanup<\/span>();\r\n<span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">-1<\/span>;\r\n}\r\n<span class=\"hljs-comment\">\/\/ \u8bbe\u7f6e\u670d\u52a1\u5668\u7684\u5730\u5740\u4fe1\u606f<\/span>\r\nsockaddr_in serverAddress;\r\nserverAddress.sin_family = AF_INET;\r\nserverAddress.sin_port = <span class=\"hljs-built_in\">htons<\/span>(<span class=\"hljs-number\">12345<\/span>); <span class=\"hljs-comment\">\/\/ \u8bbe\u7f6e\u670d\u52a1\u5668\u7aef\u53e3\u53f7<\/span>\r\nserverAddress.sin_addr.s_addr = <span class=\"hljs-built_in\">inet_addr<\/span>(<span class=\"hljs-string\">\"127.0.0.1\"<\/span>); <span class=\"hljs-comment\">\/\/ \u8bbe\u7f6e\u670d\u52a1\u5668IP\u5730\u5740<\/span>\r\n<span class=\"hljs-comment\">\/\/ \u8fde\u63a5\u5230\u670d\u52a1\u5668<\/span>\r\n<span class=\"hljs-keyword\">if<\/span> (<span class=\"hljs-built_in\">connect<\/span>(clientSocket, (sockaddr*)&amp;serverAddress, <span class=\"hljs-built_in\">sizeof<\/span>(serverAddress)) == SOCKET_ERROR) {\r\nstd::cout &lt;&lt; <span class=\"hljs-string\">\"Failed to connect to server\"<\/span> &lt;&lt; std::endl;\r\n<span class=\"hljs-built_in\">closesocket<\/span>(clientSocket);\r\n<span class=\"hljs-built_in\">WSACleanup<\/span>();\r\n<span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">-1<\/span>;\r\n}\r\n<span class=\"hljs-comment\">\/\/ \u53d1\u9001\u6570\u636e\u6bb5<\/span>\r\n<span class=\"hljs-type\">const<\/span> <span class=\"hljs-type\">char<\/span>* data = <span class=\"hljs-string\">\"Hello, Server!\"<\/span>;\r\n<span class=\"hljs-type\">int<\/span> dataLength = <span class=\"hljs-built_in\">strlen<\/span>(data);\r\n<span class=\"hljs-type\">int<\/span> bytesSent = <span class=\"hljs-built_in\">send<\/span>(clientSocket, data, dataLength, <span class=\"hljs-number\">0<\/span>);\r\n<span class=\"hljs-keyword\">if<\/span> (bytesSent == SOCKET_ERROR) {\r\nstd::cout &lt;&lt; <span class=\"hljs-string\">\"Failed to send data\"<\/span> &lt;&lt; std::endl;\r\n<span class=\"hljs-built_in\">closesocket<\/span>(clientSocket);\r\n<span class=\"hljs-built_in\">WSACleanup<\/span>();\r\n<span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">-1<\/span>;\r\n}\r\n<span class=\"hljs-comment\">\/\/ \u5173\u95ed\u8fde\u63a5<\/span>\r\n<span class=\"hljs-built_in\">closesocket<\/span>(clientSocket);\r\n<span class=\"hljs-comment\">\/\/ \u6e05\u7406 Winsock \u5e93<\/span>\r\n<span class=\"hljs-built_in\">WSACleanup<\/span>();\r\n<span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">0<\/span>;\r\n}\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u307e\u305a\u306fWinsock2.h\u3068\u3044\u3046\u30d8\u30c3\u30c0\u30fc\u30d5\u30a1\u30a4\u30eb\u3092\u542b\u3093\u3067\u3001ws2_32.lib\u3068\u3044\u3046\u30e9\u30a4\u30d6\u30e9\u30ea\u30d5\u30a1\u30a4\u30eb\u3092\u30ea\u30f3\u30af\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 \u305d\u306e\u5f8c\u3001Winsock\u3092\u4ecb\u3057\u3066TCP\u3067\u30c7\u30fc\u30bf\u30bb\u30b0\u30e1\u30f3\u30c8\u3092\u9001\u4fe1\u3059\u308b\u624b\u9806\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002  [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-135518","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO 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content=\"\u307e\u305a\u306fWinsock2.h\u3068\u3044\u3046\u30d8\u30c3\u30c0\u30fc\u30d5\u30a1\u30a4\u30eb\u3092\u542b\u3093\u3067\u3001ws2_32.lib\u3068\u3044\u3046\u30e9\u30a4\u30d6\u30e9\u30ea\u30d5\u30a1\u30a4\u30eb\u3092\u30ea\u30f3\u30af\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 \u305d\u306e\u5f8c\u3001Winsock\u3092\u4ecb\u3057\u3066TCP\u3067\u30c7\u30fc\u30bf\u30bb\u30b0\u30e1\u30f3\u30c8\u3092\u9001\u4fe1\u3059\u308b\u624b\u9806\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/winsock\u3092\u7528\u3044\u305ftcp\u306b\u3088\u308b\u30c7\u30fc\u30bf\u30bb\u30b0\u30e1\u30f3\u30c8\u9001\u4fe1\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-26T02:59:23+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-04T05:05:02+00:00\" \/>\n<meta name=\"author\" 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