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#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include <winsock.h>
#include <wincrypt.h>
#include <wintrust.h>
#include <schannel.h>
#define SECURITY_WIN32
#include <security.h>
#include <sspi.h>
#define vsc_init_resp_buff_size 44000
#define IO_BUFFER_SIZE 0x10000
#define TLS_MAX_BUFSIZ 32768
// Define here to be sure
#define SP_PROT_TLS1_2_CLIENT 0x00000800
typedef struct TlsContext TlsContext;
TlsContext new_tls_context();
static void vschannel_init(TlsContext *tls_ctx);
static void vschannel_cleanup(TlsContext *tls_ctx);
static INT request(TlsContext *tls_ctx, INT iport, LPWSTR host, CHAR *req, CHAR **out);
static SECURITY_STATUS https_make_request(TlsContext *tls_ctx, CHAR *req, CHAR **out, int *length);
static INT connect_to_server(TlsContext *tls_ctx, LPWSTR host, INT port_number);
static LONG disconnect_from_server(TlsContext *tls_ctx);
static SECURITY_STATUS perform_client_handshake(TlsContext *tls_ctx, LPWSTR host, SecBuffer *pExtraData);
static SECURITY_STATUS client_handshake_loop(TlsContext *tls_ctx, BOOL fDoInitialRead, SecBuffer *pExtraData);
static DWORD verify_server_certificate(PCCERT_CONTEXT pServerCert, LPWSTR host, DWORD dwCertFlags);
static SECURITY_STATUS create_credentials(TlsContext *tls_ctx);
static void get_new_client_credentials(TlsContext *tls_ctx);
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