How can I create a login system in C?

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main() { int i,counter=0,flag=0; char uid,pwd,s_uid={"11user1","12user2","13user3"}; char s_pwd={"Pwd1","Pwd2","Pwd3"},ch='a';/*dummy character in ch */ clrscr(); printf("\n Enter the user id : "); scanf("%s",uid); printf("\n Enter the password : "); i=0; while(1) { ch=getch(); if(ch==13) break; else...
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main() { int i,counter=0,flag=0; char uid[25],pwd[25],s_uid[][25]={"11user1","12user2","13user3"}; char s_pwd[][25]={"Pwd1","Pwd2","Pwd3"},ch='a';/*dummy character in ch */ clrscr(); printf("\n Enter the user id : "); scanf("%s",uid); printf("\n Enter the password : "); i=0; while(1) { ch=getch(); if(ch==13) break; else if(ch==8) { if(i!=0) /*this is for avoiding the ENTER instructions getting deleted */ { printf("\b"); /*printing backspace to move cursor 1 pos back*/ printf("%c",32);/*making the char invisible which is already on console*/ printf("\b"); /*printing backspace to move cursor 1 pos back*/ i--; pwd[i]='\0'; } else continue; } else { putchar('*');/* char - '*' will be printed instead of the character */ pwd[i]=ch; i++; } } pwd[i]='\0'; for(i=0;i<=2;i++) { if((stricmp(uid,s_uid[i]))==0 && (strcmp(pwd,s_pwd[i]))==0) { flag=1; break; } } if(flag) printf(" \n \n \t \t USER AUTHENTICATED "); else printf("\n \n \n\t TRESSPASSERS WILL BE SHOT AND SURVIVORS WILL BE SHOT AGAIN .. ha ha :)"); printf("written by dileep basam .. [snipped email]"); getch(); } read less
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