Write the function prototype and function definition for the GetInfo function called in the following C program.
struct friend {
char name[20];
int cellNum;
char address[40];
};
int main() {
struct friend data = {0};
struct friend *ptr = &data;
data = GetInfo();
printf("Name: %s, Address: %s, Cell Number: %d.\n", ptr->name, ptr->address, ptr->cellNum);
return 0;
}