what function does this?

[Huskar]

the thing is... i want to "redirect" the one colored in RED to the one colored in BLUE...
how? thanks!
P.S. Sorry for my noobish questions, its my first sem in C... srry

#include <stdio.h>
#include <string.h>

typedef struct student_profile{
	long long int stud_num;
	char name[50];
	char bday[50];
	char course[50];
	} STUDENT;

void login(char username[], char password[]);
char admin(void);
	void add_student(STUDENT array[20]);
	void display_students(STUDENT array[20]);


//*******************************************************************

int main(void)
{
	STUDENT array[20];
	char username[50];
	char password[50];
	char option = '0';
	char option2;
	int i;

	for(i = 0; i < 20; i++)
	{
		array[i].stud_num = 0;
	}

	clrscr();
	login(username, password);  //<------------------******HERE HERE HERE HERE*****

	if(strcmp(username, "ADMIN") == 0 && strcmp(password, "admin") == 0)
	{
		while(option != '6')
		{
			option = admin();

			switch(option)
			{
				case '1' :
				{	clrscr();
					printf("\n\nAdd Student Function is chosen.");
					getche();
					add_student(array);
					break;
				}				//end of case '1'

				case '4' :
				{
					clrscr();
					printf("\n\nDisplay all Student Entries Function is chosen.");
					getche();
					display_students(array);
					break;
				}				//end of case '4'

				case '5' :
				{
						//******SUPPOSED TO BE LOGOUT******
				}

				case '6' :
				{	printf("\n\nTerminating Program...");
					break;
				}				//end of case '6'

				default :
				{	printf("\n\nInvalid option");
				}  				//end of default
			}
		}
	}

	else if(strcmp(username, "quit") == 0 || strcmp(password, "quit") == 0)
	{
		gotoxy(19,24); printf("Terminating Program...");
		getche();
		return 0;
	}

	else
	{
		gotoxy(19,24); printf("Invalid username or password.");
	}

	//fclose(file);

	getche();
	return 0;
}

//*******************************************************************

void login(char username[], char password[])
{
	clrscr();
	gotoxy(19,5);  printf("********* ********    ***     *** *********");
	gotoxy(19,6);  printf("**    ***  **    ***   ***   ***  **    ***");
	gotoxy(19,7);  printf("**     **  **     ***  ***   ***  **     **");
	gotoxy(19,8);  printf("***        **    ***   **** ****  ***      ");
	gotoxy(19,9);  printf("********   *******     ** *** **  ******** ");
	gotoxy(19,10); printf(" ********  **    ***   ** *** **   ********");
	gotoxy(19,11); printf("      ***  **     **   **  *  **        ***");
	gotoxy(19,12); printf("**     **  **     **   **     **  **     **");
	gotoxy(19,13); printf("***    **  **     **   **     **  ***    **");
	gotoxy(19,14); printf("********* ***     *** ****   **** *********");
	gotoxy(45,40); printf("Just type 'quit' as username");
	gotoxy(45,41); printf("to terminate program.");
	gotoxy(45,45); printf("Student Record Management System");
	gotoxy(19,18); printf("Enter username:");
	gotoxy(35,18); gets(username);
	gotoxy(19,20); printf("Enter password:");
	gotoxy(35,20); gets(password);
}

//*******************************************************************

char admin(void)
{
	char option;

	clrscr();
	printf("\n\n-----Welcome Administrator!!!-----\n");
	printf("\n[1] --- Add a Student");
	printf("\n[2] --- Modify a Student Account.");
	printf("\n[3] --- Delete a Student Account.");
	printf("\n[4] --- Display all Student Acount Entries.");
	printf("\n[5] --- Logout");
	printf("\n[6] --- Terminate Program.\n");

	printf("\n\nPlease choose the task you want to perform.\n\n");
	scanf("%c", &option);

	return option;
}

//*******************************************************************

void add_student(STUDENT array[20])
{
	int i;
	int empty;
	char opt = 'y';

	while(opt == 'y'){
	for(i = 0; i < 20; i++)
	{
		if(array[i].stud_num == 0)
		{
			empty = i;
			break;
		}
	}

	clrscr();
	printf("\n==========================================");
	printf("\n\nEnter profile information\n\n");
	printf("==========================================");

	printf("\n\nStudent Number [Username]:\t");
	scanf("%lld", &array[empty].stud_num);
	printf("\nName:\t\t");
	gets(array[empty].name);
	gets(array[empty].name);
	printf("\nBirthdate:\t");
	gets(array[empty].bday);
	printf("\nCourse:\t\t");
	gets(array[empty].course);
	printf("\n\n=========================================");
	printf("\n\nAccount created successfully.\n");
	printf("\n=========================================");

	printf("\n\nDo you want to enter another account?: [y for yes, else no]\n\n");
	opt = getche(); }

	printf("\n\nRedirecting to the Administrator's page...\n");
	getche();
}

//*******************************************************************

void display_students(STUDENT array[20])
{
	int i;
	int j;

	clrscr();

	gotoxy(1,2);  printf("=====================================================================");
	gotoxy(1,4);  printf("STUDENT NUMBER");
	gotoxy(20,4); printf("NAME");
	gotoxy(40,4); printf("BIRTHDATE");
	gotoxy(60,4); printf("COURSE");
	gotoxy(1,6);  printf("=====================================================================");

	for(j = 8, i = 0; array[i].stud_num != 0; j = j+2, i++)
	{
		gotoxy(1,j);  printf("%lld", array[i].stud_num);
		gotoxy(20,j); puts(array[i].name);
		gotoxy(40,j); puts(array[i].bday);
		gotoxy(60,j); puts(array[i].course);
	}

	printf("\n\n=====================================================================");

	printf("\n\nRedirecting to the Administrator's Page...\n");
	getche();
}

//*******************************************************************

[matsp]

There is no "function" for this. You need another loop, or re-arrange the code. I'd suggest you re-arrange the code.

So, add a variable to say if the user is "logged in" or not, move the "ask for password" to inside your main loop. Initialize your logged in variable to "not logged in", and change it once you have a valid username/password pair to "logged in".

Then when user gives '5' as the answer to your menu, set your variable to "not logged in".

--
Mats

[Elysia]

You need to get up-to-date with the code. Get rid of gets (see why: SourceForge.net: Gets - cpwiki).
And preferably also get rid of gotoxy and getche, as they are non-standard.