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    <p>To access a resource on some host you just specify the path to the resource in the first line of the request, just after the 'GET'. E.g. check <a href="http://www.jmarshall.com/easy/http/#http1.1" rel="nofollow">http://www.jmarshall.com/easy/http/#http1.1</a></p> <pre><code>GET /path/file.html HTTP/1.1 Host: www.host1.com:80 [blank line here] </code></pre> <p>I'd also recomend using some portable library like Boost.ASIO instead of sockets. But I'd strongly recomend you to use some existing, portable library implementing HTTP protocol. Of course only if it is not a matter of learning how to implement it.</p> <p>Even if you want to implement it by yourself it'd be worth knowing the existing solutions. For instance this is how you can get a webpage using cpp-netlib (<a href="http://cpp-netlib.org/0.10.1/index.html" rel="nofollow">http://cpp-netlib.org/0.10.1/index.html</a>):</p> <pre><code>using namespace boost::network; using namespace boost::network::http; client::request request_("http://127.0.0.1:8000/"); request_ &lt;&lt; header("Connection", "close"); client client_; client::response response_ = client_.get(request_); std::string body_ = body(response_); </code></pre> <p>This is how you can do it using cURL library (<a href="http://curl.haxx.se/libcurl/c/simple.html" rel="nofollow">http://curl.haxx.se/libcurl/c/simple.html</a>):</p> <pre><code>#include &lt;stdio.h&gt; #include &lt;curl/curl.h&gt; int main(void) { CURL *curl; CURLcode res; curl = curl_easy_init(); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, "http://example.com"); /* example.com is redirected, so we tell libcurl to follow redirection */ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L); /* Perform the request, res will get the return code */ res = curl_easy_perform(curl); /* Check for errors */ if(res != CURLE_OK) fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res)); /* always cleanup */ curl_easy_cleanup(curl); } return 0; } </code></pre> <p>Both libraries are portable but if you'd like to use some Windows-specific API you might check WinINet (<a href="http://msdn.microsoft.com/en-us/library/windows/desktop/aa383630%28v=vs.85%29.aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/windows/desktop/aa383630%28v=vs.85%29.aspx</a>) but it's less pleasant to use.</p>
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    1. USAdam Wulkiewicz
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    1. COI dont want to use other libraries, because when I used OpenCV, I had to copy 2 DLLS to whenever the EXE were, and it is pretty annoying... Portable libraries arel like, libraries I only have to include, but dont act regulary as normal .h files or something ?
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    2. COI've tried to get the HTML of the about page : This is the get I'm sending, though it does not work : `"GET /about / HTTP/1.1\r\nHost:stackoverflow.com\r\nConnection: close\r\n\r\n";`
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    3. COBoost.ASIO is header-only library, and this is an example of HTTP synchronious client: http://www.boost.org/doc/libs/1_54_0/doc/html/boost_asio/example/cpp03/http/client/sync_client.cpp.
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