FtpPutFileA function (wininet.h)

Article
02/09/2023

Stores a file on the FTP server.

Syntax

BOOL FtpPutFileA(
  [in] HINTERNET hConnect,
  [in] LPCSTR    lpszLocalFile,
  [in] LPCSTR    lpszNewRemoteFile,
  [in] DWORD     dwFlags,
  [in] DWORD_PTR dwContext
);

Parameters

[in] hConnect

Handle to an FTP session.

[in] lpszLocalFile

Pointer to a null-terminated string that contains the name of the file to be sent from the local system.

[in] lpszNewRemoteFile

Pointer to a null-terminated string that contains the name of the file to be created on the remote system.

[in] dwFlags

Conditions under which the transfers occur. The application should select one transfer type and any of the flags that control how the caching of the file will be controlled.

The transfer type can be any one of the following values.

Value	Meaning
FTP_TRANSFER_TYPE_ASCII	Transfers the file using FTP's ASCII (Type A) transfer method. Control and formatting information is converted to local equivalents.
FTP_TRANSFER_TYPE_BINARY	Transfers the file using FTP's Image (Type I) transfer method. The file is transferred exactly as it exists with no changes. This is the default transfer method.
FTP_TRANSFER_TYPE_UNKNOWN	Defaults to FTP_TRANSFER_TYPE_BINARY.
INTERNET_FLAG_TRANSFER_ASCII	Transfers the file as ASCII.
INTERNET_FLAG_TRANSFER_BINARY	Transfers the file as binary.

The following values are used to control the caching of the file. The application can use one or more of the following values.

Value	Meaning
INTERNET_FLAG_HYPERLINK	Forces a reload if there was no Expires time and no LastModified time returned from the server when determining whether to reload the item from the network.
INTERNET_FLAG_NEED_FILE	Causes a temporary file to be created if the file cannot be cached.
INTERNET_FLAG_RELOAD	Forces a download of the requested file, object, or directory listing from the origin server, not from the cache.
INTERNET_FLAG_RESYNCHRONIZE	Reloads HTTP resources if the resource has been modified since the last time it was downloaded. All FTP resources are reloaded. Windows XP and Windows Server 2003 R2 and earlier: Gopher resources are also reloaded.

[in] dwContext

Pointer to a variable that contains the application-defined value that associates this search with any application data. This parameter is used only if the application has already called InternetSetStatusCallback to set up a status callback.

Return value

Returns TRUE if successful, or FALSE otherwise. To get a specific error message, call GetLastError.

Remarks

FtpPutFile is a high-level routine that handles all the bookkeeping and overhead associated with reading a file locally and storing it on an FTP server. An application that needs to send file data only, or that requires close control over the file transfer, should use the FtpOpenFile and InternetWriteFile functions.

If the dwFlags parameter specifies FILE_TRANSFER_TYPE_ASCII, translation of the file data converts control and formatting characters to local equivalents.

Both lpszNewRemoteFile and lpszLocalFile can be either partially or fully qualified file names relative to the current directory.

Like all other aspects of the WinINet API, this function cannot be safely called from within DllMain or the constructors and destructors of global objects.

Note WinINet does not support server implementations. In addition, it should not be used from a service. For server implementations or services use Microsoft Windows HTTP Services (WinHTTP).

Note

The wininet.h header defines FtpPutFile as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	wininet.h
Library	Wininet.lib
DLL	Wininet.dll