wolfssl/examples/echoclient/echoclient.c
2012-09-19 23:38:41 -07:00

193 lines
4.6 KiB
C

/* echoclient.c
*
* Copyright (C) 2006-2012 Sawtooth Consulting Ltd.
*
* This file is part of CyaSSL.
*
* CyaSSL 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; either version 2 of the License, or
* (at your option) any later version.
*
* CyaSSL 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; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <cyassl/openssl/ssl.h>
#include <cyassl/test.h>
#include "examples/echoclient/echoclient.h"
void echoclient_test(void* args)
{
SOCKET_T sockfd = 0;
FILE* fin = stdin;
FILE* fout = stdout;
int inCreated = 0;
int outCreated = 0;
char send[1024];
char reply[1024];
SSL_METHOD* method = 0;
SSL_CTX* ctx = 0;
SSL* ssl = 0;
int doDTLS = 0;
int sendSz;
int argc = 0;
char** argv = 0;
((func_args*)args)->return_code = -1; /* error state */
argc = ((func_args*)args)->argc;
argv = ((func_args*)args)->argv;
if (argc >= 2) {
fin = fopen(argv[1], "r");
inCreated = 1;
}
if (argc >= 3) {
fout = fopen(argv[2], "w");
outCreated = 1;
}
if (!fin) err_sys("can't open input file");
if (!fout) err_sys("can't open output file");
#ifdef CYASSL_DTLS
doDTLS = 1;
#endif
tcp_connect(&sockfd, yasslIP, yasslPort, doDTLS);
#if defined(CYASSL_DTLS)
method = DTLSv1_client_method();
#elif !defined(NO_TLS)
method = CyaSSLv23_client_method();
#else
method = SSLv3_client_method();
#endif
ctx = SSL_CTX_new(method);
#ifndef NO_FILESYSTEM
if (SSL_CTX_load_verify_locations(ctx, caCert, 0) != SSL_SUCCESS)
err_sys("can't load ca file, Please run from CyaSSL home dir");
#ifdef HAVE_ECC
if (SSL_CTX_load_verify_locations(ctx, eccCert, 0) != SSL_SUCCESS)
err_sys("can't load ca file, Please run from CyaSSL home dir");
#endif
#else
load_buffer(ctx, caCert, CYASSL_CA);
#endif
#if defined(CYASSL_SNIFFER) && !defined(HAVE_NTRU) && !defined(HAVE_ECC)
/* don't use EDH, can't sniff tmp keys */
SSL_CTX_set_cipher_list(ctx, "AES256-SHA");
#endif
#ifdef OPENSSL_EXTRA
SSL_CTX_set_default_passwd_cb(ctx, PasswordCallBack);
#endif
ssl = SSL_new(ctx);
SSL_set_fd(ssl, sockfd);
#if defined(USE_WINDOWS_API) && defined(CYASSL_DTLS) && defined(NO_MAIN_DRIVER)
/* let echoserver bind first, TODO: add Windows signal like pthreads does */
Sleep(100);
#endif
if (SSL_connect(ssl) != SSL_SUCCESS) err_sys("SSL_connect failed");
while (fgets(send, sizeof(send), fin)) {
sendSz = (int)strlen(send);
if (SSL_write(ssl, send, sendSz) != sendSz)
err_sys("SSL_write failed");
if (strncmp(send, "quit", 4) == 0) {
fputs("sending server shutdown command: quit!\n", fout);
break;
}
if (strncmp(send, "break", 5) == 0) {
fputs("sending server session close: break!\n", fout);
break;
}
while (sendSz) {
int got;
if ( (got = SSL_read(ssl, reply, sizeof(reply))) > 0) {
reply[got] = 0;
fputs(reply, fout);
sendSz -= got;
}
else
break;
}
}
#ifdef CYASSL_DTLS
strncpy(send, "break", 6);
sendSz = (int)strlen(send);
/* try to tell server done */
SSL_write(ssl, send, sendSz);
#else
SSL_shutdown(ssl);
#endif
SSL_free(ssl);
SSL_CTX_free(ctx);
fflush(fout);
if (inCreated) fclose(fin);
if (outCreated) fclose(fout);
CloseSocket(sockfd);
((func_args*)args)->return_code = 0;
}
/* so overall tests can pull in test function */
#ifndef NO_MAIN_DRIVER
int main(int argc, char** argv)
{
func_args args;
StartTCP();
args.argc = argc;
args.argv = argv;
CyaSSL_Init();
#ifdef DEBUG_CYASSL
CyaSSL_Debugging_ON();
#endif
if (CurrentDir("echoclient") || CurrentDir("build"))
ChangeDirBack(2);
echoclient_test(&args);
CyaSSL_Cleanup();
return args.return_code;
}
int myoptind = 0;
char* myoptarg = NULL;
#endif /* NO_MAIN_DRIVER */