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(Unicode C++) Co:Z SFTP Binary File Download (from z/OS IBM Mainframe)

Demonstrates how to download a binary file, such as a .zip, from a Co:Z SFTP server on a z/OS IBM Mainframe.

Note: This requires Chilkat v9.5.0.76 or greater.

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#include <CkSFtpW.h>
#include <CkSFtpDirW.h>

void ChilkatSample(void)
    {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkSFtpW sftp;

    // Connect to the SSH server.  
    const wchar_t *hostname = L"sftp.example.com";
    int port = 22;
    bool success = sftp.Connect(hostname,port);
    if (success != true) {
        wprintf(L"%s\n",sftp.lastErrorText());
        return;
    }

    success = sftp.AuthenticatePw(L"myLogin",L"myPassword");
    if (success != true) {
        wprintf(L"%s\n",sftp.lastErrorText());
        return;
    }

    success = sftp.InitializeSftp();
    if (success != true) {
        wprintf(L"%s\n",sftp.lastErrorText());
        return;
    }

    // To download a binary file from the Co:Z SFTP server, 
    // we must switch to binary mode in the following unconventional way.
    // We pretend to fetch a directory listing for "/+mode=binary"
    // This has the effect of putting the server in binary mode for transfers.
    const wchar_t *handle = sftp.openDir(L"/+mode=binary");
    if (sftp.get_LastMethodSuccess() != true) {
        wprintf(L"%s\n",sftp.lastErrorText());
        return;
    }

    // Download the "directory listing" (but it's not actually a directory listing, and we'll just discard it.)
    CkSFtpDirW *dirListing = sftp.ReadDir(handle);
    if (sftp.get_LastMethodSuccess() != true) {
        wprintf(L"%s\n",sftp.lastErrorText());
        return;
    }

    // Close the directory handle:
    success = sftp.CloseHandle(handle);
    if (success != true) {
        wprintf(L"%s\n",sftp.lastErrorText());
        return;
    }

    // Download the binary file:
    const wchar_t *localFilePath = L"c:/temp/test.zip";
    const wchar_t *remoteFilePath = L"test.zip";
    success = sftp.DownloadFileByName(remoteFilePath,localFilePath);
    if (success != true) {
        wprintf(L"%s\n",sftp.lastErrorText());
        return;
    }

    wprintf(L"Success.\n");
    }

 

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