Hi Everyone!!
I'm facing a few problems in storing the structutres or records in a file.
I'm trying to store the usernames and passwords(Taken as example), of a person in a single record as structure variable w[99]. and **i=0 to i<=100
***
When the program Executes for the first time, the username and password of a person are stored in rec[0] record... But when I close everything and restart the program, again it starts from w[0], which results in merging of all records..
and since all data is in a single record, if any of the username and passwords match the existing record, the program logs in. Whichmust not happen..
**Needed sugesstions.. **
code:
#include<conio.h>
#include<stdio.h>
#include<string.h>
int i=0;
struct web
{
char name[30],pass[30];
}w[99];
int n;
void login(void);
void reg(void);
int main()
{
clrscr();
printf("\n\n\n\n\n\t\t\t\tWELCOME TO MY WEBSITE");
printf("\n\t\t\t\t=====================");
printf("\n\n\n\n\t\t\tPress Enter to proceed...!!");
if(getch()==13)
clrscr();
printf("\n\n\n\t\t\t1. LOGIN\t\t2. REGISTER");
printf("\n\n\n\t\t\t\tENTER YOUR CHOICE: ");
scanf("%d",&n);
switch(n)
{
case 1: clrscr();
login();
case 2: clrscr();
reg();
default: printf("NO MATCH FOUND");
return 0;
}
}
void reg()
{
FILE *fp;
char c,checker[30]; int z=0;
fp=fopen("Web_reg.txt","ab+");
printf("\n\n\t\t\t\tWELCOME TO REGISTER ZONE");
printf("\n\t\t\t\t^^^^^^^^^^^^^^^^^^^^^^^^");
for(i=0;i<1000;i++)
{
printf("\n\n\t\t\t\t ENTER USERNAME: ");
scanf("%s",checker);
while(!feof(fp))
{
fread(&w[i],sizeof(w[i]),1,fp);
if(strcmp(checker,w[i].name)==0)
{
printf("\n\n\t\t\tUSERNAME ALREDY EXISTS");
clrscr();
reg();
}
else
{
strcpy(w[i].name,checker);
break;
}
}
printf("\n\n\t\t\t\t DESIRED PASSWORD: ");
while((c=getch())!=13)
{
w[i].pass[z++]=c;
printf("%c",'*');
}
fwrite(&w[i],sizeof(w[i]),1,fp);
fclose(fp);
printf("\n\n\tPress enter if you agree with Username and Password");
if((c=getch())==13)
{
clrscr();
printf("\n\n\t\tYou are successfully registered");
printf("\n\n\t\tTry login your account??\n\n\t\t ");
printf("> PRESS 1 FOR YES\n\n\t\t > PRESS 2 FOR NO\n\n\t\t\t\t");
scanf("%d",&n);
switch(n)
{
case 1: clrscr();
login();
break;
case 2: clrscr();
printf("\n\n\n\t\t\t\t\tTHANK YOU FOR REGISTERING");
break;
}
}
break;
}
getch();
}
void login()
{
FILE *fp;
char c,name[30],pass[30]; int z=0;
int checku,checkp;
fp=fopen("Web_reg.txt","rb");
printf("\n\n\t\t\t\tWELCOME TO LOG IN ZONE");
printf("\n\t\t\t\t^^^^^^^^^^^^^^^^^^^^^^");
for(i=0;i<1000;i++)
{
printf("\n\n\t\t\t\t ENTER USERNAME: ");
scanf("%s",name);
printf("\n\n\t\t\t\t ENTER PASSWORD: ");
while((c=getch())!=13)
{
pass[z++]=c;
printf("%c",'*');
}
pass[z]='\0';
while(!feof(fp))
{
fread(&w[i],sizeof(w[i]),1,fp);
checku=strcmp(name,w[i].name);
checkp=strcmp(pass,w[i].pass);
if(checku==0&&checkp==0)
{
clrscr();
printf("\n\n\n\t\t\tYOU HAVE LOGGED IN SUCCESSFULLY!!");
printf("\n\n\n\t\t\t\tWELCOME, HAVE A NICE DAY");
break;
}
else if(checku==0&&checkp!=0)
{
printf("\n\n\n\t\t\tWRONG PASSWORD!! Not %s??",name);
printf("\n\n\t\t\t\t (Press 'Y' to re-login)");
if(getch()=='y'||getch()=='Y')
login();
}
else if(checku!=0&&checkp!=0)
{
printf("\n\n\n\t\t\tYou are not a Registered User\n \t\t\tPress enter to register yourself");
if(getch()==13)
reg();
}
}
break;
}
getch();
}
