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(Visual FoxPro) SFTP Get Size of File on ServerSee more SFTP ExamplesDemonstrates how to get the size of an existing file on the server.
LOCAL loSftp LOCAL lcHostname LOCAL lnPort LOCAL lnSuccess LOCAL lnBFollowLinks LOCAL lnBIsHandle LOCAL lnFileSize LOCAL lcFileSizeStr LOCAL lcHandle * This example assumes the Chilkat API to have been previously unlocked. * See Global Unlock Sample for sample code. loSftp = CreateObject('Chilkat_9_5_0.SFtp') * Set some timeouts, in milliseconds: loSftp.ConnectTimeoutMs = 5000 loSftp.IdleTimeoutMs = 10000 * Connect to the SSH server. * The standard SSH port = 22 * The hostname may be a hostname or IP address. lcHostname = "sftp.example.com" lnPort = 22 lnSuccess = loSftp.Connect(lcHostname,lnPort) IF (lnSuccess <> 1) THEN ? loSftp.LastErrorText RELEASE loSftp CANCEL ENDIF * Authenticate with the SSH server. Chilkat SFTP supports * both password-based authenication as well as public-key * authentication. This example uses password authenication. lnSuccess = loSftp.AuthenticatePw("myLogin","myPassword") IF (lnSuccess <> 1) THEN ? loSftp.LastErrorText RELEASE loSftp CANCEL ENDIF * After authenticating, the SFTP subsystem must be initialized: lnSuccess = loSftp.InitializeSftp() IF (lnSuccess <> 1) THEN ? loSftp.LastErrorText RELEASE loSftp CANCEL ENDIF * Assuming we know the file size won't be too large, we get the size as a 32-bit integer. * For SFTP, the remote file path is always either a path relative to the HOME directory of the user account, or an absolute path on the server. lnBFollowLinks = 1 lnBIsHandle = 0 lnFileSize = loSftp.GetFileSize32("someDir/someFile.dat",lnBFollowLinks,lnBIsHandle) IF (lnFileSize < 0) THEN ? loSftp.LastErrorText RELEASE loSftp CANCEL ENDIF ? "file size = " + STR(lnFileSize) * If the file size might be too large for a 32-bit signed integer, then get the size as a decimal string. * You can convert the string to a 64-bit integer in your programming language. lcFileSizeStr = loSftp.GetFileSizeStr("someDir/someFile.dat",lnBFollowLinks,lnBIsHandle) IF (loSftp.LastMethodSuccess = 0) THEN ? loSftp.LastErrorText RELEASE loSftp CANCEL ENDIF ? "file size = " + lcFileSizeStr * You can alternatively get the size with an open file handle. lcHandle = loSftp.OpenFile("someDir/someFile.dat","readOnly","openExisting") IF (loSftp.LastMethodSuccess <> 1) THEN ? loSftp.LastErrorText RELEASE loSftp CANCEL ENDIF * Get the size using the handle. lnBIsHandle = 1 lnFileSize = loSftp.GetFileSize32("someDir/someFile.dat",lnBFollowLinks,lnBIsHandle) IF (lnFileSize < 0) THEN ? loSftp.LastErrorText RELEASE loSftp CANCEL ENDIF ? "file size = " + STR(lnFileSize) * ----------------------------------------------------------------------------- * Don't forget to close the file handle. * Otherwise open handles will accumulate on the server until eventually a limit * is reached and the server will fail on a call to OpenFile. * ----------------------------------------------------------------------------- * Close the file. lnSuccess = loSftp.CloseHandle(lcHandle) IF (lnSuccess <> 1) THEN ? loSftp.LastErrorText RELEASE loSftp CANCEL ENDIF RELEASE loSftp |
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