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(Unicode C) FTP Connect, Examine Server Certificate, and then AuthenticateDemonstrates how to connect to an FTP server, examine the server's SSL/TLS certificate, and then, if it meets the application's security requirements, proceed to authenticate.
#include <C_CkFtp2W.h> #include <C_CkCertW.h> void ChilkatSample(void) { HCkFtp2W ftp; BOOL success; HCkCertW serverCert; // This example assumes Chilkat Ftp2 to have been previously unlocked. // See Unlock Ftp2 for sample code. ftp = CkFtp2W_Create(); CkFtp2W_putHostname(ftp,L"www.authtls-ftps-server.com"); CkFtp2W_putUsername(ftp,L"FTP_LOGIN"); CkFtp2W_putPassword(ftp,L"FTP_PASSWORD"); CkFtp2W_putAuthTls(ftp,TRUE); CkFtp2W_putPort(ftp,21); // Connect to the FTP server using explicit TLS (AUTH TLS). success = CkFtp2W_ConnectOnly(ftp); if (success != TRUE) { wprintf(L"%s\n",CkFtp2W_lastErrorText(ftp)); CkFtp2W_Dispose(ftp); return; } // Get the FTP server's certificate. serverCert = CkFtp2W_GetSslServerCert(ftp); if (CkFtp2W_getLastMethodSuccess(ftp) != TRUE) { wprintf(L"%s\n",CkFtp2W_lastErrorText(ftp)); CkFtp2W_Dispose(ftp); return; } // Now that we have the certificate, we can check it in any way we desire. // (See the online reference documentation for the certificate object's methods // and properties)... // Assuming the certificate is OK, proceed to authenticate with the FTP server. success = CkFtp2W_LoginAfterConnectOnly(ftp); if (success != TRUE) { wprintf(L"%s\n",CkFtp2W_lastErrorText(ftp)); CkFtp2W_Dispose(ftp); return; } // // Proceed with uploading/download files, etc... // CkFtp2W_Disconnect(ftp); wprintf(L"Success.\n"); CkFtp2W_Dispose(ftp); } |
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