Unicode C

SFTP Get Size of File on Server

See more SFTP Examples

Demonstrates how to get the size of an existing file on the server. Unicode C

#include <C_CkSFtpW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkSFtpW sftp;
    const wchar_t *hostname;
    int port;
    BOOL bFollowLinks;
    BOOL bIsHandle;
    int fileSize;
    const wchar_t *fileSizeStr;
    const wchar_t *handle;

    success = FALSE;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    sftp = CkSFtpW_Create();

    // Set some timeouts, in milliseconds:
    CkSFtpW_putConnectTimeoutMs(sftp,5000);
    CkSFtpW_putIdleTimeoutMs(sftp,10000);

    // Connect to the SSH server.  
    // The standard SSH port = 22
    // The hostname may be a hostname or IP address.
    hostname = L"sftp.example.com";
    port = 22;
    success = CkSFtpW_Connect(sftp,hostname,port);
    if (success != TRUE) {
        wprintf(L"%s\n",CkSFtpW_lastErrorText(sftp));
        CkSFtpW_Dispose(sftp);
        return;
    }

    // Authenticate with the SSH server.  Chilkat SFTP supports
    // both password-based authenication as well as public-key
    // authentication.  This example uses password authenication.
    success = CkSFtpW_AuthenticatePw(sftp,L"myLogin",L"myPassword");
    if (success != TRUE) {
        wprintf(L"%s\n",CkSFtpW_lastErrorText(sftp));
        CkSFtpW_Dispose(sftp);
        return;
    }

    // After authenticating, the SFTP subsystem must be initialized:
    success = CkSFtpW_InitializeSftp(sftp);
    if (success != TRUE) {
        wprintf(L"%s\n",CkSFtpW_lastErrorText(sftp));
        CkSFtpW_Dispose(sftp);
        return;
    }

    // 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.
    bFollowLinks = TRUE;
    bIsHandle = FALSE;
    fileSize = CkSFtpW_GetFileSize32(sftp,L"someDir/someFile.dat",bFollowLinks,bIsHandle);
    if (fileSize < 0) {
        wprintf(L"%s\n",CkSFtpW_lastErrorText(sftp));
        CkSFtpW_Dispose(sftp);
        return;
    }

    wprintf(L"file size = %d\n",fileSize);

    // 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.
    fileSizeStr = CkSFtpW_getFileSizeStr(sftp,L"someDir/someFile.dat",bFollowLinks,bIsHandle);
    if (CkSFtpW_getLastMethodSuccess(sftp) == FALSE) {
        wprintf(L"%s\n",CkSFtpW_lastErrorText(sftp));
        CkSFtpW_Dispose(sftp);
        return;
    }

    wprintf(L"file size = %s\n",fileSizeStr);

    // You can alternatively get the size with an open file handle.
    handle = CkSFtpW_openFile(sftp,L"someDir/someFile.dat",L"readOnly",L"openExisting");
    if (CkSFtpW_getLastMethodSuccess(sftp) != TRUE) {
        wprintf(L"%s\n",CkSFtpW_lastErrorText(sftp));
        CkSFtpW_Dispose(sftp);
        return;
    }

    // Get the size using the handle.
    bIsHandle = TRUE;
    fileSize = CkSFtpW_GetFileSize32(sftp,L"someDir/someFile.dat",bFollowLinks,bIsHandle);
    if (fileSize < 0) {
        wprintf(L"%s\n",CkSFtpW_lastErrorText(sftp));
        CkSFtpW_Dispose(sftp);
        return;
    }

    wprintf(L"file size = %d\n",fileSize);

    // -----------------------------------------------------------------------------
    // 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.
    success = CkSFtpW_CloseHandle(sftp,handle);
    if (success != TRUE) {
        wprintf(L"%s\n",CkSFtpW_lastErrorText(sftp));
        CkSFtpW_Dispose(sftp);
        return;
    }



    CkSFtpW_Dispose(sftp);

    }