C
C
Set FTP Connection and Read Timeouts
See more FTP Examples
Demonstrates the timeout properties ConnectTimeout, ReadTimeout, and IdleTimeoutMs.
Background: The three timeouts guard different phases:
ConnectTimeout (in seconds) bounds how long a connection attempt blocks so an unreachable server fails promptly; ReadTimeout (seconds) limits how long a data connection may stall without new data; and IdleTimeoutMs (milliseconds) caps a lack of forward progress overall. Tuning them prevents a hung server or flaky link from freezing an automated job indefinitely.Chilkat C Downloads
#include <C_CkFtp2.h>
void ChilkatSample(void)
{
BOOL success;
HCkFtp2 ftp;
success = FALSE;
ftp = CkFtp2_Create();
CkFtp2_putHostname(ftp,"ftp.example.com");
CkFtp2_putUsername(ftp,"myFtpLogin");
// Maximum seconds to wait for the TCP connection to be accepted.
CkFtp2_putConnectTimeout(ftp,15);
// Maximum seconds a data connection may go without receiving more data before timing out.
CkFtp2_putReadTimeout(ftp,30);
// Maximum milliseconds without a control-channel response or forward progress before failing.
CkFtp2_putIdleTimeoutMs(ftp,20000);
// Normally you would not hard-code the password in source. You should instead obtain it
// from an interactive prompt, environment variable, or a secrets vault.
CkFtp2_putPassword(ftp,"myPassword");
success = CkFtp2_Connect(ftp);
if (success == FALSE) {
printf("%s\n",CkFtp2_lastErrorText(ftp));
CkFtp2_Dispose(ftp);
return;
}
printf("Connected with custom timeouts.\n");
success = CkFtp2_Disconnect(ftp);
if (success == FALSE) {
printf("%s\n",CkFtp2_lastErrorText(ftp));
CkFtp2_Dispose(ftp);
return;
}
CkFtp2_Dispose(ftp);
}