?? client.cpp
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/*TCPclient.cpp*/
/**Author: Xu Zhengyu 2001HDC(3) 413
Project: RAD Report---Project: RAD Report---Imitating ATM System based on C/S and DOS
Title: Imitating ATM System based on C/S and DOS
Function: 1 Inquire lacking money of account
2 Modify code
3 Draw money from account
4 Login & Register
5 washing money
6 safeguard file of Server & Client (include modify IP address)
Date:2003/04/12 **/
#include "connect.h"
#include "winsock.h"
#include "memory.h"
#include "stdio.h"
#include "math.h"
#include "passive.h"
#include "windef.h"
#include "winsock.h"
#include "memory.h"
#include "stdio.h"
#include "windef.h"
#include "fcntl.h"
#include "signal.h"
#include "sys/types.h"
#include "stdio.h"
#include "stdarg.h"
#include "io.h"
#include "conio.h"
#include "dos.h"
#include "math.h"
#include "stdlib.h"
#define LINELEN 128
extern int t_error;
#include "stdlib.h"
#define bufsize 130
#define BUFSIZE 130
#define QLEN 5
extern int t_errno;
//number of drawing money from bank
/*master and slave sockets */
#define LINELEN 128
#define LEN sizeof(struct moneyCou)
#define NULL 0
struct moneyCou{
char host[16];
long money;//store money
char username[5];
char account[5];
long lockmoney;//lock of account of user
} A[5];
void clrscr(){
printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");//20 line
printf("\n\n\n\n\n\n\n\n\n\n");//10 line
}
void login(int s){
char account[5];char code[5];char e;
char sendM[20];int i;int t,k;
int found=0;
LIK:
clrscr();
printf(" Welcome to ATM system!\n");
printf("\n\n\n");
printf(" Please input your account:");
scanf("%s",account);printf("\n\n");
printf(" Please input your code:");
scanf("%s",code);printf("\n\n");
printf(" If you confirm?(y/n)\n");
scanf("%c",&e);
if(e=='n')goto LIK;
//char sendM[100];int i;int t,k;
sendM[0]='A';//flag of check login
t=strlen(account);
for(i=1;i<t+1;i++) sendM[i]=account[i-1];
sendM[t+1]='/';k=t+1;
t=strlen(code);
for(i=0;i<t;i++)sendM[k+i+1]=code[i];
sendM[k+t+1]='\0';//as above is code
// printf("%s",sendM);
(void)send(s,sendM,sizeof(sendM),0);//}
(void)send(s,'\0',1,0);//}
char inputchar=0;i=0;int n;char getM[100];
while(inputchar!=-1){
//for(l1=0;l1<400000000;l1++);
//if(n<0)printf("Server Error!\n");
if((n=recv(s,&inputchar,1,0))<0){
printf("Server Error!\n");
exit(1);
}
if(inputchar=='^'){
clrscr();
printf(" Your code error!Please reinput one time!\n");
found++;
if(found<3) goto LIK;
clrscr();
printf("Your account is kocked because of reading three times!\n");
getchar();
exit(0);
}
if(n==-1) break;
if (inputchar=='*') break;
getM[i]=inputchar;
i++;
}//end of while
getM[i+1]='\0';
//printf("Getting message is:%s",getM);
char name[5];char lockmoney[5];int str=0;int length=0;char p1[bufsize];int status1;
while(1){//function of decode
if(getM[str]=='\0')break;
else{
p1[length]=getM[str];
length++;
str++;
}
}//end of while
int i1;
for(i1=0;i1<length;i1++){
if(p1[i1]=='/'){
status1=i1;
break;
}
name[i1]=p1[i1]; //@@@name[i1-1]=p1[i1];
}
name[status1]='\0';int k1=0;
for(i1=status1+1;i1<length;i1++){
lockmoney[k1]=p1[i1];k1++;
}
//accomplish function of decode as stated above
FILE *in;
struct moneyCou *p;
int fno,flen;long len=LEN;
if((in=(fopen("date.dat","r+w")))==NULL)printf("File not exist!\n");
fno=fileno(in);flen=filelength(fno); t=(flen/LEN);
p=A;
fread(p,LEN,1,in);
strcpy(p->username,name);
strcpy(p->account,account);
p->lockmoney=atol(lockmoney);
fseek(in,-len,1);
fwrite(p,LEN,1,in);
fclose(in);
strcpy(A[3].username,name);
strcpy(A[3].account,account);
A[3].lockmoney=atol(lockmoney);
clrscr();
}//end of login
void maindraw(int s){
int sel;char account[5];char e;
char sendM[BUFSIZE];int i;int t,k;
FILE *in;
struct moneyCou *p;
int fno,flen;
long lackmoney;char name[5];long len=LEN;
strcpy(name,A[3].username);
strcpy(account,A[3].account);
lackmoney=A[3].lockmoney;
LPP:
printf(" Hi! %s\n",name);
printf(" 1.Inquire account\n");
printf(" 2.Modify code\n");
printf(" 3.Draw money\n");
printf(" 4.Exit\n");
printf("\n\n\n");
printf("Please select number.Please input number:");
scanf("%d",&sel);
if(sel>4||sel<0)goto LPP;
switch(sel){
case 1:
{
LHK:
clrscr();
printf(" Your lacking money of your account is %d\n",lackmoney);
printf(" Do you return...(y/n)?Please input 'y' or 'n':");
scanf("%c",&e);
if(e=='y'){printf("\n\n\n");printf("\n\n\n");printf("\n\n\n");printf("\n\n\n");printf("\n\n\n");goto LPP;}
goto LHK;
break;}
//end of inquire
case 2:
{
LG2:
printf("\n\n\n\n");
char code1[5];char code2[5];
printf(" Please input new code,\n when input 0 to return main interface:");
scanf("%s",code1);
printf("\n");
printf(" Please confirm new code:");
scanf("%s",code2);
printf("\n");
if(((atoi(code2))==0))goto LPP;
if(strcmp(code1,code2)){
printf(" Two input is not consistance!\n");
printf(" press any key to continue...");
getchar();
goto LG2;
}
sendM[0]='D';//flag of modify code
for(i=0;i<5;i++)sendM[i+1]=account[i];
sendM[5]='/';
sendM[6]=code1[0];
sendM[7]=code1[1];
sendM[8]=code1[2];
sendM[9]=code1[3];
sendM[10]='\0'; //code module
//printf("sendM is:%s\n",sendM);
(void)send(s,sendM,sizeof(sendM),0);
(void)send(s,'\0',1,0);
printf("\n\n\n\n\n");
printf("Operation of ATM is successful...\n");
printf("\n\n\n");
char inputchar=0;i=0;int n;char getM[100];
while(inputchar!=-1){
if((n=recv(s,&inputchar,1,0))<0){
printf("Server Error!\n");
exit(1);
}
if(inputchar=='>'){
printf("\n\n\n");
printf(" Operation of server from bank is Failled!Please retry...\n");
goto LG2;
}
if(inputchar=='<'){
printf("\n\n\n");
printf(" Operation of server from bank is Successful!\n");
printf("\n\n\n");
printf("\n\n\n");
printf("\n\n\n");
goto LPP;
}
if(n==-1) break;
if (inputchar=='*') break;
getM[i]=inputchar;
i++;
}//end of while
getM[i+1]='\0';
//printf("Getting message is:%s",getM);
break;}//end of modify
case 3:
{
char drawMoney[5];long storemoney;
if((in=(fopen("date.dat","r+w")))==NULL)printf("File not exist!\n");
fno=fileno(in);flen=filelength(fno);
p=A;
fread(p,LEN,1,in);
storemoney=p->money;
fclose(in);
GK:
printf(" Please input number of drawing money!\n");
printf(" Number is multiple of 50.\n");
printf(" When number is smaller than 50,you will reinput...\n");
printf(" When number is 0,you will main interface...\n");
printf("Input number:");
scanf("%s",drawMoney);
if(atol(drawMoney)==0){clrscr();goto LPP;}
if(((atol(drawMoney)%50)>0)||(atol(drawMoney)<50)){printf("\n\n\n");printf("\n\n\n");printf("\n\n\n");goto GK;}
if((atol(drawMoney))>3000){
printf("\n\n\n\n");
printf("You should not draw money amount to 3000.\n");
printf("\n\n\n\n");printf("\n\n\n");printf("\n\n\n");
goto GK;
}
if((atol(drawMoney))>storemoney){
printf("\n\n\n\n");
printf("There is not enough money in ATM machine.\n");
printf("\n\n\n\n");printf("\n\n\n");printf("\n\n\n");
goto GK;
}
if((atol(drawMoney))>lackmoney){
printf("\n\n\n\n");
printf("There is not enough money in your account.\n");
printf("\n\n\n\n");printf("\n\n\n");printf("\n\n\n");
goto GK;
}
sendM[0]='B';//flag of draw
for(i=0;i<5;i++)sendM[i+1]=account[i];
sendM[5]='/';
t=strlen(drawMoney);
if(t==2){sendM[6]='0';sendM[7]='0';sendM[8]=drawMoney[0];sendM[9]=drawMoney[1];sendM[10]='\0';}
if(t==3){sendM[6]='0';sendM[7]=drawMoney[0];sendM[8]=drawMoney[1];sendM[9]=drawMoney[2];sendM[10]='\0';}
if(t==4){sendM[6]=drawMoney[0];sendM[7]=drawMoney[1];sendM[8]=drawMoney[2];sendM[9]=drawMoney[3];sendM[10]='\0';}
//printf("\n\n");
//printf("Send Message is: %s\n",sendM);
(void)send(s,sendM,sizeof(sendM),0);
char inputchar=0;i=0;char getM[bufsize];int n;
while(inputchar!=-1){
if((n=recv(s,&inputchar,1,0))<0)exit(0);
if(inputchar=='('){
printf("\n\n\n\n\n");
printf("Drawing money is failed!\n");
printf("Press any key to reinput...\n");
getchar();
printf("\n\n\n");printf("\n\n\n");
goto GK;
}
if(inputchar=='%'){
printf("\n\n\n\n\n");
printf("Drawing money is Successful!\n");
printf("Press any key to continue...\n");
getchar();
printf("\n\n\n");printf("\n\n\n");
break;
}
if(inputchar==-1)break;
getM[i]=inputchar;
i++;
}//end of while
getM[i]='\0';
lackmoney=lackmoney-atol(drawMoney);
// try{
//int86(0x14,&r,&v);//Send money Machine Drive
bool int86=true;
if(int86){
storemoney=storemoney-atol(drawMoney);
if((in=(fopen("date.dat","r+w")))==NULL)printf("File not exist!\n");
fno=fileno(in);flen=filelength(fno); t=(flen/LEN);
p=A;
fread(p,LEN,1,in);
p->lockmoney=lackmoney;
p->money=storemoney;
fseek(in,-len,1);
fwrite(p,LEN,1,in);
fclose(in);
}
//}
//catch(){
else{
printf("\n\n\n\n\n");printf("ATM error.\n");
getchar();
}
sendM[0]='C';//flag of wash money
t=strlen(account);
for(i=1;i<t+1;i++)sendM[i]=account[i-1];
sendM[t+1]='/';k=t;
if(int86){sendM[t+2]='-';}
else {sendM[t+2]='+';}
sendM[t+3]='\0';//as above is code
(void)send(s,sendM,sizeof(sendM),0);
// }
printf("\n\n\n");
printf("\n\n\n");
printf("\n\n\n");
printf("\n\n\n");
printf("Whether to print stub?(y/n)\n");
scanf("%c",&e);
if(e=='y'){/*print stub */
// fprintf(stdprn,"Your account:%s\n",account);
// fprintf(stdprn,"You had drawn money:%s\n",drawMoney);
// fprintf(stdprn,"Your lacking money:%d\n",lackmoney);
clrscr();
goto LPP;
}
clrscr();
goto LPP;
break;}//end of Draw money
case 4:
{
//login(s);
A[3].lockmoney=-1;
break;}//end of inquire
}//end of switch
}//end of maindraw
void main(int argc,char *argv[])
{ FILE *in;
struct moneyCou *p;
/* the provider of transmission*/
int flags=0;
char *host;
unsigned port=6666;
/* buffer for one line of text*/
int s; /*socket descriptor,read count*/
int fno,flen,t;
if((in=(fopen("date.dat","r+w")))==NULL)printf("File not exist!\n");
fno=fileno(in);flen=filelength(fno); t=(flen/LEN);
p=A;
fread(p,LEN,1,in);
host=p->host;
fclose(in);
WSADATA myWSAData;
WORD VersionReqd;
int Status;
struct sockaddr_in sin;
struct protoent *ppe;
VersionReqd = MAKEWORD(2,2);
Status = WSAStartup(VersionReqd, &myWSAData);
if (Status != 0)
{/**Author: Xu Zhengyu 2001HDC(3) 413
Project: RAD Report---Project: RAD Report---Imitating ATM System based on C/S and DOS
Title: Imitating ATM System based on C/S and DOS
Function: 1 Inquire lacking money of account
2 Modify code
3 Draw money from account
4 Login & Register
5 washing money
6 safeguard file of Server & Client (include modify IP address)
Date:2003/04/12 **/
printf("WSAStartup() failed\n");
printf("Press any key to contionue!\n");
getchar();
exit(1);
}
if ((ppe=getprotobyname("tcp"))==0)
{ printf("Cann't get tcp protocol entry\n");
printf("Press any key to contionue!\n");
getchar();
exit(1);}
s=socket(PF_INET,SOCK_STREAM,ppe->p_proto);
if (s<0)
{ printf("Can't create socket\n");
printf("Press any key to contionue!\n");
getchar();
exit(1);}
memset(&sin,0,sizeof(sin));
sin.sin_family=AF_INET;
sin.sin_port=htons((u_short)port);
sin.sin_addr.s_addr=inet_addr(host);
if (connect(s,(struct sockaddr*)&sin,sizeof(sin))<0)
{
printf("Can't connect to %s\n",host);
printf("Press any key to contionue!\n");
getchar();
exit(1);
}
DDT:
login(s);
maindraw(s);
if(A[3].lockmoney==-1)goto DDT;
shutdown(s,1);
WSACleanup();
}
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