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https://github.com/Mbed-TLS/mbedtls.git
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- Renamed include directory to polarssl
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172
programs/ssl/ssl_client1.c
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172
programs/ssl/ssl_client1.c
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/*
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* SSL client demonstration program
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*
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* Copyright (C) 2006-2007 Christophe Devine
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef _CRT_SECURE_NO_DEPRECATE
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#define _CRT_SECURE_NO_DEPRECATE 1
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#endif
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#include <string.h>
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#include <stdio.h>
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#include "xyssl/net.h"
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#include "xyssl/ssl.h"
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#include "xyssl/havege.h"
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#define SERVER_PORT 443
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/*
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#define SERVER_NAME "localhost"
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#define GET_REQUEST "GET / HTTP/1.0\r\n\r\n"
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*/
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#define SERVER_NAME "xyssl.org"
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#define GET_REQUEST \
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"GET /hello/ HTTP/1.1\r\n" \
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"Host: xyssl.org\r\n\r\n"
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#define DEBUG_LEVEL 0
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void my_debug( void *ctx, int level, char *str )
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{
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if( level < DEBUG_LEVEL )
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{
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fprintf( (FILE *) ctx, "%s", str );
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fflush( (FILE *) ctx );
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}
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}
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int main( void )
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{
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int ret, len, server_fd;
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unsigned char buf[1024];
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havege_state hs;
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ssl_context ssl;
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ssl_session ssn;
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/*
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* 0. Initialize the RNG and the session data
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*/
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havege_init( &hs );
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memset( &ssn, 0, sizeof( ssl_session ) );
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/*
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* 1. Start the connection
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*/
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printf( "\n . Connecting to tcp/%s/%4d...", SERVER_NAME,
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SERVER_PORT );
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fflush( stdout );
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if( ( ret = net_connect( &server_fd, SERVER_NAME,
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SERVER_PORT ) ) != 0 )
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{
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printf( " failed\n ! net_connect returned %d\n\n", ret );
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goto exit;
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}
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printf( " ok\n" );
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/*
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* 2. Setup stuff
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*/
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printf( " . Setting up the SSL/TLS structure..." );
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fflush( stdout );
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if( ( ret = ssl_init( &ssl ) ) != 0 )
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{
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printf( " failed\n ! ssl_init returned %d\n\n", ret );
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goto exit;
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}
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printf( " ok\n" );
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ssl_set_endpoint( &ssl, SSL_IS_CLIENT );
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ssl_set_authmode( &ssl, SSL_VERIFY_NONE );
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ssl_set_rng( &ssl, havege_rand, &hs );
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ssl_set_dbg( &ssl, my_debug, stdout );
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ssl_set_bio( &ssl, net_recv, &server_fd,
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net_send, &server_fd );
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ssl_set_ciphers( &ssl, ssl_default_ciphers );
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ssl_set_session( &ssl, 1, 600, &ssn );
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/*
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* 3. Write the GET request
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*/
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printf( " > Write to server:" );
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fflush( stdout );
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len = sprintf( (char *) buf, GET_REQUEST );
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while( ( ret = ssl_write( &ssl, buf, len ) ) <= 0 )
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{
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if( ret != XYSSL_ERR_NET_TRY_AGAIN )
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{
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printf( " failed\n ! ssl_write returned %d\n\n", ret );
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goto exit;
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}
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}
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len = ret;
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printf( " %d bytes written\n\n%s", len, (char *) buf );
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/*
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* 7. Read the HTTP response
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*/
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printf( " < Read from server:" );
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fflush( stdout );
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do
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{
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len = sizeof( buf ) - 1;
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memset( buf, 0, sizeof( buf ) );
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ret = ssl_read( &ssl, buf, len );
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if( ret == XYSSL_ERR_NET_TRY_AGAIN )
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continue;
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if( ret == XYSSL_ERR_SSL_PEER_CLOSE_NOTIFY )
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break;
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if( ret <= 0 )
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{
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printf( "failed\n ! ssl_read returned %d\n\n", ret );
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break;
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}
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len = ret;
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printf( " %d bytes read\n\n%s", len, (char *) buf );
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}
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while( 0 );
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ssl_close_notify( &ssl );
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exit:
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net_close( server_fd );
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ssl_free( &ssl );
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memset( &ssl, 0, sizeof( ssl ) );
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#ifdef WIN32
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printf( " + Press Enter to exit this program.\n" );
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fflush( stdout ); getchar();
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#endif
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return( ret );
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}
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