wolf SSL / Mbed 2 deprecated Example-client-tls

Example TLS client with wolfSSL

Dependencies:   EthernetInterface-FRDM-k64F mbed-rtos mbed wolfSSL-TLS13-Beta Example-client-tls

Dependents:   Example-client-tls

client-tls.cpp@1:c9a3dbb712d0, 2015-07-21 (annotated)

Committer:
wolfSSL
Date:
Tue Jul 21 22:37:00 2015 +0000
Revision:
1:c9a3dbb712d0
Parent:
client-tcp.cpp@0:e23aa8e6ab2f
Child:
2:76d10d65ce5b
client-tls

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wolfSSL 0:e23aa8e6ab2f 1 /* client-tcp.c
wolfSSL 0:e23aa8e6ab2f 2 *
wolfSSL 0:e23aa8e6ab2f 3 * Copyright (C) 2006-2015 wolfSSL Inc.
wolfSSL 0:e23aa8e6ab2f 4 *
wolfSSL 0:e23aa8e6ab2f 5 * This file is part of wolfSSL. (formerly known as CyaSSL)
wolfSSL 0:e23aa8e6ab2f 6 *
wolfSSL 0:e23aa8e6ab2f 7 * wolfSSL is free software; you can redistribute it and/or modify
wolfSSL 0:e23aa8e6ab2f 8 * it under the terms of the GNU General Public License as published by
wolfSSL 0:e23aa8e6ab2f 9 * the Free Software Foundation; either version 2 of the License, or
wolfSSL 0:e23aa8e6ab2f 10 * (at your option) any later version.
wolfSSL 0:e23aa8e6ab2f 11 *
wolfSSL 0:e23aa8e6ab2f 12 * wolfSSL is distributed in the hope that it will be useful,
wolfSSL 0:e23aa8e6ab2f 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
wolfSSL 0:e23aa8e6ab2f 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wolfSSL 0:e23aa8e6ab2f 15 * GNU General Public License for more details.
wolfSSL 0:e23aa8e6ab2f 16 *
wolfSSL 0:e23aa8e6ab2f 17 * You should have received a copy of the GNU General Public License
wolfSSL 0:e23aa8e6ab2f 18 * along with this program; if not, write to the Free Software
wolfSSL 0:e23aa8e6ab2f 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
wolfSSL 0:e23aa8e6ab2f 20 */
wolfSSL 0:e23aa8e6ab2f 21
wolfSSL 0:e23aa8e6ab2f 22 #include "mbed.h"
wolfSSL 0:e23aa8e6ab2f 23 #include "EthernetInterface.h"
wolfSSL 0:e23aa8e6ab2f 24 #include <stdio.h>
wolfSSL 0:e23aa8e6ab2f 25 #include <stdlib.h>
wolfSSL 0:e23aa8e6ab2f 26 #include <string.h>
wolfSSL 0:e23aa8e6ab2f 27
wolfSSL 0:e23aa8e6ab2f 28 #define MAXDATASIZE (1024*4)
wolfSSL 0:e23aa8e6ab2f 29
wolfSSL 0:e23aa8e6ab2f 30 static int getline(char *prompt, char *buff, int size)
wolfSSL 0:e23aa8e6ab2f 31 {
wolfSSL 0:e23aa8e6ab2f 32 int sz ;
wolfSSL 0:e23aa8e6ab2f 33
wolfSSL 0:e23aa8e6ab2f 34 printf("%s", prompt) ;
wolfSSL 0:e23aa8e6ab2f 35 for(sz = 0 ; (sz < size) && ((*buff = getchar()) != '\r'); sz++, buff++) {
wolfSSL 0:e23aa8e6ab2f 36 putchar(*buff) ;
wolfSSL 0:e23aa8e6ab2f 37 if(*buff == '\\') {
wolfSSL 0:e23aa8e6ab2f 38 if(++sz >= size)break ;
wolfSSL 0:e23aa8e6ab2f 39 *buff = getchar() ;
wolfSSL 0:e23aa8e6ab2f 40 putchar(*buff) ;
wolfSSL 0:e23aa8e6ab2f 41 switch(*buff) {
wolfSSL 0:e23aa8e6ab2f 42 case 'n' :
wolfSSL 0:e23aa8e6ab2f 43 *buff = '\n' ;
wolfSSL 0:e23aa8e6ab2f 44 break ;
wolfSSL 0:e23aa8e6ab2f 45 case 'r' :
wolfSSL 0:e23aa8e6ab2f 46 *buff = '\r' ;
wolfSSL 0:e23aa8e6ab2f 47 break ;
wolfSSL 0:e23aa8e6ab2f 48 case 't' :
wolfSSL 0:e23aa8e6ab2f 49 *buff = '\t' ;
wolfSSL 0:e23aa8e6ab2f 50 break ;
wolfSSL 0:e23aa8e6ab2f 51 case '\\':
wolfSSL 0:e23aa8e6ab2f 52 *buff = '\\' ;
wolfSSL 0:e23aa8e6ab2f 53 break ;
wolfSSL 0:e23aa8e6ab2f 54 default:
wolfSSL 0:e23aa8e6ab2f 55 buff[1] = buff[0] ;
wolfSSL 0:e23aa8e6ab2f 56 buff[0] = '\\' ;
wolfSSL 0:e23aa8e6ab2f 57 buff++ ;
wolfSSL 0:e23aa8e6ab2f 58 }
wolfSSL 0:e23aa8e6ab2f 59 } else if(*buff == '\b') {
wolfSSL 0:e23aa8e6ab2f 60 if(sz >= 2) {
wolfSSL 0:e23aa8e6ab2f 61 buff-=2 ;
wolfSSL 0:e23aa8e6ab2f 62 sz-=2;
wolfSSL 0:e23aa8e6ab2f 63 }
wolfSSL 0:e23aa8e6ab2f 64 }
wolfSSL 0:e23aa8e6ab2f 65 } ;
wolfSSL 0:e23aa8e6ab2f 66 putchar('\n') ;
wolfSSL 0:e23aa8e6ab2f 67 *buff = '\0' ;
wolfSSL 0:e23aa8e6ab2f 68 return sz ;
wolfSSL 0:e23aa8e6ab2f 69 }
wolfSSL 0:e23aa8e6ab2f 70
wolfSSL 0:e23aa8e6ab2f 71 /*
wolfSSL 0:e23aa8e6ab2f 72 * clients initial contact with server. Socket to connect to: sock
wolfSSL 0:e23aa8e6ab2f 73 */
wolfSSL 0:e23aa8e6ab2f 74 int ClientGreet(TCPSocketConnection *socket)
wolfSSL 0:e23aa8e6ab2f 75 {
wolfSSL 0:e23aa8e6ab2f 76 /* data to send to the server, data recieved from the server */
wolfSSL 0:e23aa8e6ab2f 77 char sendBuff[MAXDATASIZE], rcvBuff[MAXDATASIZE] = {0};
wolfSSL 0:e23aa8e6ab2f 78 int ret ;
wolfSSL 0:e23aa8e6ab2f 79
wolfSSL 0:e23aa8e6ab2f 80 ret = getline("Message for server: ", sendBuff, MAXDATASIZE);
wolfSSL 0:e23aa8e6ab2f 81 printf("Send[%d]:\n%s\n", ret, sendBuff) ;
wolfSSL 0:e23aa8e6ab2f 82 if ((ret = socket->send(sendBuff, strlen(sendBuff))) < 0) {
wolfSSL 0:e23aa8e6ab2f 83 printf("Send error: %i", ret);
wolfSSL 0:e23aa8e6ab2f 84 return EXIT_FAILURE;
wolfSSL 0:e23aa8e6ab2f 85 }
wolfSSL 0:e23aa8e6ab2f 86 printf("Recieved:\n");
wolfSSL 0:e23aa8e6ab2f 87 while(1) {
wolfSSL 0:e23aa8e6ab2f 88 if ((ret = socket->receive(rcvBuff, sizeof(rcvBuff)-1)) < 0) {
wolfSSL 0:e23aa8e6ab2f 89 if(ret == 0)break ;
wolfSSL 0:e23aa8e6ab2f 90 printf("Read error. Error: %i\n", ret);
wolfSSL 0:e23aa8e6ab2f 91 return EXIT_FAILURE;
wolfSSL 0:e23aa8e6ab2f 92 }
wolfSSL 0:e23aa8e6ab2f 93 rcvBuff[ret] = '\0' ;
wolfSSL 0:e23aa8e6ab2f 94 printf("%s", rcvBuff);
wolfSSL 0:e23aa8e6ab2f 95 if((rcvBuff[ret-3] == '\n')&&
wolfSSL 0:e23aa8e6ab2f 96 (rcvBuff[ret-2] == '\n')&&
wolfSSL 0:e23aa8e6ab2f 97 (rcvBuff[ret-1] == '\n'))break ;
wolfSSL 0:e23aa8e6ab2f 98 }
wolfSSL 0:e23aa8e6ab2f 99 return ret;
wolfSSL 0:e23aa8e6ab2f 100 }
wolfSSL 0:e23aa8e6ab2f 101
wolfSSL 0:e23aa8e6ab2f 102 /*
wolfSSL 0:e23aa8e6ab2f 103 * command line argumentCount and argumentValues
wolfSSL 0:e23aa8e6ab2f 104 */
wolfSSL 0:e23aa8e6ab2f 105 void main(const void *av)
wolfSSL 0:e23aa8e6ab2f 106 {
wolfSSL 0:e23aa8e6ab2f 107 char server_addr[40] ;
wolfSSL 0:e23aa8e6ab2f 108 char server_port[10] ;
wolfSSL 0:e23aa8e6ab2f 109
wolfSSL 0:e23aa8e6ab2f 110 EthernetInterface eth;
wolfSSL 0:e23aa8e6ab2f 111 TCPSocketConnection socket;
wolfSSL 0:e23aa8e6ab2f 112
wolfSSL 0:e23aa8e6ab2f 113 eth.init(); //Use DHCP
wolfSSL 0:e23aa8e6ab2f 114 eth.connect();
wolfSSL 0:e23aa8e6ab2f 115 printf("Client Addr: %s\n", eth.getIPAddress());
wolfSSL 0:e23aa8e6ab2f 116
wolfSSL 0:e23aa8e6ab2f 117 getline("Server Addr: ", server_addr, sizeof(server_addr)) ;
wolfSSL 0:e23aa8e6ab2f 118 getline("Server Port: ", server_port, sizeof(server_port)) ;
wolfSSL 0:e23aa8e6ab2f 119
wolfSSL 0:e23aa8e6ab2f 120 while (socket.connect(server_addr, atoi(server_port)) < 0) {
wolfSSL 0:e23aa8e6ab2f 121 printf("Unable to connect to (%s) on port (%s)\n", server_addr, server_port);
wolfSSL 0:e23aa8e6ab2f 122 wait(1.0);
wolfSSL 0:e23aa8e6ab2f 123 }
wolfSSL 0:e23aa8e6ab2f 124 printf("TCP Connected\n") ;
wolfSSL 0:e23aa8e6ab2f 125
wolfSSL 0:e23aa8e6ab2f 126 ClientGreet(&socket);
wolfSSL 0:e23aa8e6ab2f 127 return ;
wolfSSL 0:e23aa8e6ab2f 128 }