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/*
Copyright (c) 2006, 2012, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
MA 02110-1301 USA.
*/
/* client.cpp */
// takes an optional command line argument of cipher list to make scripting
// easier
#include "../../testsuite/test.hpp"
//#define TEST_RESUME
void ClientError(SSL_CTX* ctx, SSL* ssl, SOCKET_T& sockfd, const char* msg)
{
SSL_CTX_free(ctx);
SSL_free(ssl);
tcp_close(sockfd);
err_sys(msg);
}
#ifdef NON_BLOCKING
void NonBlockingSSL_Connect(SSL* ssl, SSL_CTX* ctx, SOCKET_T& sockfd)
{
int ret = SSL_connect(ssl);
int err = SSL_get_error(ssl, 0);
while (ret != SSL_SUCCESS && (err == SSL_ERROR_WANT_READ ||
err == SSL_ERROR_WANT_WRITE)) {
if (err == SSL_ERROR_WANT_READ)
printf("... client would read block\n");
else
printf("... client would write block\n");
#ifdef _WIN32
Sleep(1000);
#else
sleep(1);
#endif
ret = SSL_connect(ssl);
err = SSL_get_error(ssl, 0);
}
if (ret != SSL_SUCCESS)
ClientError(ctx, ssl, sockfd, "SSL_connect failed");
}
#endif
void client_test(void* args)
{
#ifdef _WIN32
WSADATA wsd;
WSAStartup(0x0002, &wsd);
#endif
SOCKET_T sockfd = 0;
int argc = 0;
char** argv = 0;
set_args(argc, argv, *static_cast<func_args*>(args));
tcp_connect(sockfd);
#ifdef NON_BLOCKING
tcp_set_nonblocking(sockfd);
#endif
SSL_METHOD* method = TLSv1_client_method();
SSL_CTX* ctx = SSL_CTX_new(method);
set_certs(ctx);
if (argc >= 2) {
printf("setting cipher list to %s\n", argv[1]);
if (SSL_CTX_set_cipher_list(ctx, argv[1]) != SSL_SUCCESS) {
ClientError(ctx, NULL, sockfd, "set_cipher_list error\n");
}
}
SSL* ssl = SSL_new(ctx);
SSL_set_fd(ssl, sockfd);
#ifdef NON_BLOCKING
NonBlockingSSL_Connect(ssl, ctx, sockfd);
#else
// if you get an error here see note at top of README
if (SSL_connect(ssl) != SSL_SUCCESS)
ClientError(ctx, ssl, sockfd, "SSL_connect failed");
#endif
showPeer(ssl);
const char* cipher = 0;
int index = 0;
char list[1024];
strncpy(list, "cipherlist", 11);
while ( (cipher = SSL_get_cipher_list(ssl, index++)) ) {
strncat(list, ":", 2);
strncat(list, cipher, strlen(cipher) + 1);
}
printf("%s\n", list);
printf("Using Cipher Suite: %s\n", SSL_get_cipher(ssl));
char msg[] = "hello yassl!";
if (SSL_write(ssl, msg, sizeof(msg)) != sizeof(msg))
ClientError(ctx, ssl, sockfd, "SSL_write failed");
char reply[1024];
int input = SSL_read(ssl, reply, sizeof(reply));
if (input > 0) {
reply[input] = 0;
printf("Server response: %s\n", reply);
}
#ifdef TEST_RESUME
SSL_SESSION* session = SSL_get_session(ssl);
SSL* sslResume = SSL_new(ctx);
#endif
SSL_shutdown(ssl);
SSL_free(ssl);
tcp_close(sockfd);
#ifdef TEST_RESUME
tcp_connect(sockfd);
SSL_set_fd(sslResume, sockfd);
SSL_set_session(sslResume, session);
if (SSL_connect(sslResume) != SSL_SUCCESS)
ClientError(ctx, sslResume, sockfd, "SSL_resume failed");
showPeer(sslResume);
if (SSL_write(sslResume, msg, sizeof(msg)) != sizeof(msg))
ClientError(ctx, sslResume, sockfd, "SSL_write failed");
input = SSL_read(sslResume, reply, sizeof(reply));
if (input > 0) {
reply[input] = 0;
printf("Server response: %s\n", reply);
}
SSL_shutdown(sslResume);
SSL_free(sslResume);
tcp_close(sockfd);
#endif // TEST_RESUME
SSL_CTX_free(ctx);
((func_args*)args)->return_code = 0;
}
#ifndef NO_MAIN_DRIVER
int main(int argc, char** argv)
{
func_args args;
args.argc = argc;
args.argv = argv;
client_test(&args);
yaSSL_CleanUp();
return args.return_code;
}
#endif // NO_MAIN_DRIVER
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