(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.

Chilkat C/C++ Library Downloads
MS Visual C/C++ Linux/CentOS C/C++ Alpine Linux C/C++ MAC OS X C/C++	armhf/aarch64 C/C++ C++ Builder iOS C/C++ Android C/C++	Solaris C/C++ MinGW C/C++

#include <C_CkSFtp.h>

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

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

    sftp = CkSFtp_Create();

    // Set some timeouts, in milliseconds:
    CkSFtp_putConnectTimeoutMs(sftp,5000);
    CkSFtp_putIdleTimeoutMs(sftp,10000);

    // Connect to the SSH server.  
    // The standard SSH port = 22
    // The hostname may be a hostname or IP address.
    hostname = "sftp.example.com";
    port = 22;
    success = CkSFtp_Connect(sftp,hostname,port);
    if (success != TRUE) {
        printf("%s\n",CkSFtp_lastErrorText(sftp));
        CkSFtp_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 = CkSFtp_AuthenticatePw(sftp,"myLogin","myPassword");
    if (success != TRUE) {
        printf("%s\n",CkSFtp_lastErrorText(sftp));
        CkSFtp_Dispose(sftp);
        return;
    }

    // After authenticating, the SFTP subsystem must be initialized:
    success = CkSFtp_InitializeSftp(sftp);
    if (success != TRUE) {
        printf("%s\n",CkSFtp_lastErrorText(sftp));
        CkSFtp_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 = CkSFtp_GetFileSize32(sftp,"someDir/someFile.dat",bFollowLinks,bIsHandle);
    if (fileSize < 0) {
        printf("%s\n",CkSFtp_lastErrorText(sftp));
        CkSFtp_Dispose(sftp);
        return;
    }

    printf("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 = CkSFtp_getFileSizeStr(sftp,"someDir/someFile.dat",bFollowLinks,bIsHandle);
    if (CkSFtp_getLastMethodSuccess(sftp) == FALSE) {
        printf("%s\n",CkSFtp_lastErrorText(sftp));
        CkSFtp_Dispose(sftp);
        return;
    }

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

    // You can alternatively get the size with an open file handle.
    handle = CkSFtp_openFile(sftp,"someDir/someFile.dat","readOnly","openExisting");
    if (CkSFtp_getLastMethodSuccess(sftp) != TRUE) {
        printf("%s\n",CkSFtp_lastErrorText(sftp));
        CkSFtp_Dispose(sftp);
        return;
    }

    // Get the size using the handle.
    bIsHandle = TRUE;
    fileSize = CkSFtp_GetFileSize32(sftp,"someDir/someFile.dat",bFollowLinks,bIsHandle);
    if (fileSize < 0) {
        printf("%s\n",CkSFtp_lastErrorText(sftp));
        CkSFtp_Dispose(sftp);
        return;
    }

    printf("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 = CkSFtp_CloseHandle(sftp,handle);
    if (success != TRUE) {
        printf("%s\n",CkSFtp_lastErrorText(sftp));
        CkSFtp_Dispose(sftp);
        return;
    }



    CkSFtp_Dispose(sftp);

    }