winhttp

Set IP preference in WinHTTP (c++)

由 三世轮回 提交于 2019-12-08 04:30:02
问题 I have a code that is using WinHTTP on Windows 7. The problem i'm experiencing is that the connction to specific hostname takes a long time when the user tries to use an IPv6 address (that is disabled). I want to configure the connection (maybe WinHttpConnect parametrs) to try IPv4 first . Is there a way to set the address binding order? 回答1: The answer is: You cannot do this. See Specify which Network Card/Connection Winhttp Must Use 来源： https://stackoverflow.com/questions/3387237/set-ip

What is causing intermittent SEC_E_BUFFER_TOO_SMALL error coming from WinHttpSendRequest?

由 只谈情不闲聊 提交于 2019-12-07 06:33:37
问题 I have a tool which executes an HTTP S POST command against the same URL with same headers, same post body, etc. for a number of iterations. What I have run into is that for some testers, every so often the WinHttpSendRequest() function fails and the subsequent call to GetLastError() returns SEC_E_BUFFER_TOO_SMALL (0x80090321) documented here: COM Error Codes (Security and Setup). This is not a documented error code for WinHttpSendRequest() and fairly extensive Googling has not turned up

C++ 307 Errors when trying to include winhttp.h in visual studio 2010

由 邮差的信 提交于 2019-12-07 01:56:18
问题 I have a big big problem. I'm trying to use WinHttp to download file with C++ and I'm using Visual Studio 2010 in order to do this thing. My problem is that the program is not compiling because are generated 307 errors, all refering to winhttp.h . I mention that I have included that file. What could be the problem? Thanks! There are some: ------ Build started: Project: a, Configuration: Debug Win32 ------ b. Cpp a. Cpp c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(50

msdn upload image with winhttp c++

由 五迷三道 提交于 2019-12-06 16:48:47
I have been trying this the whole day but no luck i want to upload an image file to a php file which i have created but when ever i try to do that winhttpsendrequest throws 183 error that means cannot send file that is already sent please can someone point out where i am wrong c++ code: int _tmain(int argc, _TCHAR* argv[]) { HINTERNET hSession = NULL, hConnect = NULL, hRequest = NULL; BOOL bResults = FALSE; FILE *pFile; long lSize; char *buffer; size_t result; pFile = fopen("blog.jpg", "rb"); fseek(pFile, 0, SEEK_END); lSize = ftell(pFile); rewind(pFile); buffer = (char *) malloc(sizeof(char)

winHTTP GET request C++

由 喜夏-厌秋 提交于 2019-12-06 13:31:59
问题 I'll get right to the point. This is what a browser request looks like GET /index.html HTTP/1.1 This is what winHTTP does GET http://site.com/index.html HTTP/1.1 Is there any I can get the winHTTP request to be the same format as the regular one? I'm using VC++ 2008 if it makes any difference 回答1: Your code should look like this: // Specify an HTTP server. if (hSession) hConnect = WinHttpConnect( hSession, L"www.example.com", INTERNET_DEFAULT_HTTP_PORT, 0); // Create an HTTP request handle.

WinHttp used in async mode - ERROR_INTERNET_CANNOT_CONNECT how to cleanly close connection

由 做~自己de王妃 提交于 2019-12-06 11:35:18
问题 I get lots of ERROR_INTERNET_CANNOT_CONNECT (12029 code) in callback procedure of the request. I use WinHttp in async mode(on a server). How do you cleanly close the connection in this case. Do you just use something like this(like you normally close a connection?): ::WinHttpSetStatusCallback(handle, NULL, 0, 0); ::WinHttpCloseHandle(this->handle)); I ask this because I have some strange memory leaking associated with winhttp dll that occurs in the situation described(want to create hundreds

What's the correct way to use win32inet.WinHttpGetProxyForUrl

由 若如初见. 提交于 2019-12-06 09:03:40
问题 I'm trying to use a feature of the Microsoft WinHttp library that has been exposed by the developers of Win32com. Unfortunately most of the library does not seem to be documented and there are no example of the correct way to use the win32inet features via the win32com library. This is what I have so far: import win32inet hinternet = win32inet.InternetOpen("foo 1.0", 0, "", "", 0) # Does not work!!! proxy = win32inet.WinHttpGetProxyForUrl( hinternet, u"http://www.foo.com", 0 ) As you can see,

What is phrase “URL reservation in HTTP.SYS” means?

由 不打扰是莪最后的温柔 提交于 2019-12-06 08:31:33
问题 Can't understand the meaning of this phrase. People on forums suggests each other to reserve url in HTTP.sys, but what does it mean? What is it for? How does it works? All it comes from HttpWebRequest uac problems. 回答1: Several Win32 APIs and .NET framework components (such as WCF) utilize the HTTP Server API when they want to send or receive HTTP requests targeted at the local machine. The HTTP Server API basically provides such functionality in a manner managed by the OS without the need

Posting form using WinHttp

由 不想你离开。 提交于 2019-12-06 05:23:21
问题 Do i need to add any headers before making a post to server? For example, Currently I'm trying to send a request along with the post data this way, LPCWSTR post = L"name=User&subject=Hi&message=Hi"; if (!(WinHttpSendRequest( hRequest, WINHTTP_NO_ADDITIONAL_HEADERS, 0, (LPVOID)post, wcslen(post), wcslen(post), 0))) { //error } should this work? 回答1: I'd guess you need to pass narrow strings not wide as the post data. I don't know if you're specifying a content type for the posted data which

WinHttp doesn't work when hostname doesn't contains www. (error 12029)

由 五迷三道 提交于 2019-12-06 05:06:42
I am testing this winhttp example from http://msdn.microsoft.com/en-us/library/aa384270%28v=vs.85%29.aspx DWORD dwSize = 0; DWORD dwDownloaded = 0; LPSTR pszOutBuffer; BOOL bResults = FALSE; HINTERNET hSession = NULL, hConnect = NULL, hRequest = NULL; // Use WinHttpOpen to obtain a session handle. hSession = WinHttpOpen( L"WinHTTP Example/1.0", WINHTTP_ACCESS_TYPE_DEFAULT_PROXY, WINHTTP_NO_PROXY_NAME, WINHTTP_NO_PROXY_BYPASS, 0 ); // Specify an HTTP server. if( hSession ) hConnect = WinHttpConnect( hSession, L"www.microsoft.com", INTERNET_DEFAULT_HTTPS_PORT, 0 ); // Create an HTTP request
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