Unicode C
Unicode C
Receive Text from a Socket into a StringBuilder
See more Socket/SSL/TLS Examples
Demonstrates Socket.ReceiveSb, which receives text, decodes it using StringCharset, and appends it to a StringBuilder.
Background. Text send and receive operations encode and decode bytes using the
StringCharset property. For plain ASCII or UTF-8 protocols, setting StringCharset to utf-8 is a safe default.Chilkat Unicode C Downloads
#include <C_CkSocketW.h>
#include <C_CkStringBuilderW.h>
void ChilkatSample(void)
{
BOOL success;
HCkSocketW socket;
BOOL bTls;
int maxWaitMs;
const wchar_t *command;
HCkStringBuilderW sb;
const wchar_t *responseText;
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 text and append it to a StringBuilder, decoding using StringCharset.
sb = CkStringBuilderW_Create();
success = CkSocketW_ReceiveSb(socket,sb);
if (success == FALSE) {
wprintf(L"%s\n",CkSocketW_lastErrorText(socket));
CkSocketW_Dispose(socket);
CkStringBuilderW_Dispose(sb);
return;
}
responseText = CkStringBuilderW_getAsString(sb);
if (CkStringBuilderW_getLastMethodSuccess(sb) == FALSE) {
wprintf(L"%s\n",CkStringBuilderW_lastErrorText(sb));
CkSocketW_Dispose(socket);
CkStringBuilderW_Dispose(sb);
return;
}
wprintf(L"%s\n",responseText);
CkSocketW_Dispose(socket);
CkStringBuilderW_Dispose(sb);
}