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(Unicode C) Multiple Hop SSH to SFTPDemonstrates how to SFTP through an intermediate SSH server (multiple hop). The scheme looks like this: Application => ServerSSH1 => ServerSFtp The ConnectThroughSsh method is added in Chilkat version 9.5.0.55 to accomplish this task.
#include <C_CkSshW.h> #include <C_CkSFtpW.h> void ChilkatSample(void) { HCkSshW ssh1; const wchar_t *hostname; const wchar_t *port; BOOL success; HCkSFtpW sftp; const wchar_t *remoteFilePath; const wchar_t *localFilePath; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. ssh1 = CkSshW_Create(); // Hostname may be an IP address or domain name: hostname = L"192.168.1.111"; port = 22; // Connect directly to the 1st SSH server: success = CkSshW_Connect(ssh1,hostname,port); if (success != TRUE) { wprintf(L"%s\n",CkSshW_lastErrorText(ssh1)); CkSshW_Dispose(ssh1); return; } // Authenticate using login/password: success = CkSshW_AuthenticatePw(ssh1,L"myLogin",L"myPassword"); if (success != TRUE) { wprintf(L"%s\n",CkSshW_lastErrorText(ssh1)); CkSshW_Dispose(ssh1); return; } // Connect through the 1st SSH connection to reach a 2nd SSH server (for SFTP) // Note: Any number of connections may be simultaneously tunneled through a single // existing SSH connection. sftp = CkSFtpW_Create(); // Connect to some SSH/SFTP server through ssh1. success = CkSFtpW_ConnectThroughSsh(sftp,ssh1,L"sftp.someremoteserver.com",22); if (success != TRUE) { wprintf(L"%s\n",CkSFtpW_lastErrorText(sftp)); CkSshW_Dispose(ssh1); CkSFtpW_Dispose(sftp); return; } // Authenticate with the SFTP server. success = CkSFtpW_AuthenticatePw(sftp,L"myLogin",L"myPassword"); if (success != TRUE) { wprintf(L"%s\n",CkSFtpW_lastErrorText(sftp)); CkSshW_Dispose(ssh1); 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)); CkSshW_Dispose(ssh1); CkSFtpW_Dispose(sftp); return; } // Upload from the local file to the SSH server. // Important -- the remote filepath is the 1st argument, // the local filepath is the 2nd argument; remoteFilePath = L"hamlet.xml"; localFilePath = L"c:/temp/hamlet.xml"; success = CkSFtpW_UploadFileByName(sftp,remoteFilePath,localFilePath); if (success != TRUE) { wprintf(L"%s\n",CkSFtpW_lastErrorText(sftp)); CkSshW_Dispose(ssh1); CkSFtpW_Dispose(sftp); return; } wprintf(L"Success.\n"); // Close the connection with the SFTP server.(This closes the the tunnel through ssh1.) // The connection with ssh1 is still alive, and may be used for more connections. CkSFtpW_Disconnect(sftp); // ... // ... // ... CkSshW_Disconnect(ssh1); CkSshW_Dispose(ssh1); CkSFtpW_Dispose(sftp); } |
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