Unicode C
Unicode C
Receive a Bounded String from a Socket
See more Socket/SSL/TLS Examples
Demonstrates Socket.ReceiveStringMaxN, which receives and decodes text like ReceiveString but reads at most a given number of input bytes.
Background. The limit is measured in bytes, not Unicode characters, so a byte limit can split a multibyte character or a protocol token. Decoding uses
StringCharset.Chilkat Unicode C Downloads
#include <C_CkSocketW.h>
void ChilkatSample(void)
{
BOOL success;
HCkSocketW socket;
BOOL bTls;
int maxWaitMs;
const wchar_t *command;
const wchar_t *firstChunk;
success = FALSE;
socket = CkSocketW_Create();
// Connect to the server using TLS. The 3rd argument enables the TLS handshake after the TCP
// connection succeeds; the 4th is the maximum time to wait, in milliseconds.
bTls = TRUE;
maxWaitMs = 5000;
success = CkSocketW_Connect(socket,L"example.com",5000,bTls,maxWaitMs);
if (success == FALSE) {
wprintf(L"%s\n",CkSocketW_lastErrorText(socket));
CkSocketW_Dispose(socket);
return;
}
// StringCharset controls the character encoding used when sending and receiving text.
CkSocketW_putStringCharset(socket,L"utf-8");
// Send a request using a simple application-defined text protocol in which each message ends with a
// CRLF.
command = L"STATUS\r\n";
success = CkSocketW_SendString(socket,command);
if (success == FALSE) {
wprintf(L"%s\n",CkSocketW_lastErrorText(socket));
CkSocketW_Dispose(socket);
return;
}
// Receive and decode text like ReceiveString, but read at most the given number of input bytes.
// The limit is measured in bytes, not Unicode characters.
firstChunk = CkSocketW_receiveStringMaxN(socket,64);
if (CkSocketW_getLastMethodSuccess(socket) == FALSE) {
wprintf(L"%s\n",CkSocketW_lastErrorText(socket));
CkSocketW_Dispose(socket);
return;
}
wprintf(L"%s\n",firstChunk);
CkSocketW_Dispose(socket);
}