[c-prog] need some help in file!

[julie ann enriquez roque]

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

struct libraryInfo
{char code[10];
 char title[50];
 char author[20];
 int no_copies;
};

int enterOption(void);
void bookProfile(FILE*);
void transaction(FILE*);
void report(FILE*);
int enterChoice(void);
void addRecord(FILE*);
void editRecord(FILE*);
void deleteRecord(FILE*);
void borrowedBook(FILE*);
void returnedBook(FILE*);
int enterPick(void);


int main()
{FILE * cfPtr;
int option;

 if((cfPtr=fopen("library.info","r+"))==NULL)
    printf("File could not be opened.\n");
 else{
     while((option=enterOption())!=5)
        {switch(option)
           {case1:
              bookProfile(cfPtr);
              break;
            case2:
              transaction(cfPtr);
              break;
            case3:
              report(cfPtr);
              break;
            case4:
              printf("End of Run\n");
              break;
           }
        }
        fclose(cfPtr);
   }
   return 0;
}


void bookProfile()
{FILE * cfPtr;
 int choice;

 if((cfPtr=fopen("library.info","r+"))==NULL)
     printf("File could not be opened.\n");
 else{
     while((choice=enterChoice())!=5)
     {
      switch(choice)
      {case1:
         addRecord(cfPtr);
         break;
       case2:
         editRecord(cfPtr);
         break;
       case3:
         deleteRecord(cfPtr);
         break;
       case4:
         main();
         break;
      }
    }
}

void transaction()
{FILE * cfPtr;
 int pick;

 if((cfPtr=fopen("library.info","r+"))=NULL)
    printf("File could not be opened.\n");
 else{
    while((pick=enterPick())!=4)
    {
    switch(pick)
    {case1:
       borrowedBook(cfPtr);
       break;
     case2:
       returnedBook(cfPtr);
       break;
     case3:
       main();
       break;
    }
    }
    fclose(cfPtr);
 }
 return 0;
}

void record()
{FILE * cfPtr;

 if((cfPtr=fopen("library.info","r"))==NULL)
         printf("File could not be opened.\n");
 else{
     printf("%s%s%s%d","Code","Title","Author","No. of Copies");
         fscanf(cfPtr,"%s%s%s%d",code,title,author,no_copies);

         while(!feof(cfPtr)){
                 printf("%s%s%s%d\n",code,title,author,no_copies);
                 fscanf(cfPtr,"%s%s%s%d",code,title,author,no_copies);
         }

         fclose(cfPtr);

 }
 return 0;
}


void addRecord()
{FILE * cfPtr;
 int choice;

 if((cfPtr=fopen("library.info","r+"))==NULL)
   printf("File could not be opened.\n");
 else{
   while((choice=enterChoice())!=3)
   {
    switch(choice)
    {case1:
       add(cfPtr);
       break;
     case2:
       bookProfile(cfPtr);
       break;
    }
   }
   fclose(cfPtr);
}


void editRecord()
{FILE * cfPtr;
 int choice;

 if((cfPtr=fopen("library.info","r+"))==NULL)
    printf("File could not be opened.\n");
 else{
    while((choice=enterChoice())!=3)
    {
     switch(choice)
     {case1:
            edit(cfPtr);
            break;
      case2:
            bookProfile(cfPtr);
            break;
      }
      }
      fclose(cfPtr);
}


void deleteRecord()
{int choice;
 FILE*cfPtr;

 if((cfPtr=fopen("library.info","r+"))==NULL)
    printf("File could not be opened.\n");
 else{
    while((choice=enterChoice())!=3)
    {
     switch(choice)
     {case1:
            delete(cfPtr);
        break;
      case2:
            bookProfile(cfPtr);
            break;
      }
    }
    fclose(cfPtr);
}


void add()
{FILE * cfPtr;
 char ans;
 cfPtr=fopen("libraryInfo","w");
 do
 {printf("Enter book code:");
  scanf("%s",&book.code);
  printf("Enter book title:");
  scanf("%s",&book.title);
  printf("Do you want to add entry?\n");
  ans=getch();
  fprintf(cfPtr,"%s\t%s\n",book.code,book.title);
 }while(to upper(ans=='Y');
  printf("Book Code\t\t Book Title\n");
  fclose(cfPtr);
  cfPtr=fopen("library.info","r");
  while(fscanf(cfPtr,"%s%s",&book.code,&book.title)!=EOF)
  printf("%s\t\t%s",book.code,book.title);
  fclose(cfPtr);
}
}

void edit()
{int no;
 FILE*tempfile;
 struct libraryInfo
  {char code[10];
   char title[50];
   char author[20];
   int no_copies;
  };
  fclose(cfPtr);
  printf("Enter book code to be edited:\n");
  tempfile=fopen("entry","w");
  cfPtr=fopen("library.info","r");
  while(fscanf(cfPtr,"%s%s",&book.title,&book.author)!=EOF)
  {if(no==book.code)
     {printf("Enter new Book Title:\n");
      scanf("%s",&book.code);
      printf("Enter new Book Author:\n");
      scanf("%s",&book.title);
     }
     fprintf(tempfile,"%s\t\t%s",book.title,book.author);
     }
     fclose(temfile);
     fclose(cfPtr);
     rename("entry","library.info");
     cfPtr=fopen("library.info","r");
  }

void delete()
{int no;
 char x;
 FILE*tempfile;

    printf("Enter book code to be deleted:\n");
    scanf("%s",&book.code);
    tempfile=fopen("entry","w");
    cfPtr=fopen("library.info","r");
       while(fscanf(cfPtr,"%s%s",&book.title,&book.author)!=EOF)
       {if(no==book.code)
          {printf("Do you really want to delete?\n");
           x=getche();
           if(to upper(x)=='Y')
           break;
          }
          fprintf(tempfile,"%s\t\t%s",book.title,book.author);
       }
       fclose(tempfile);
       fclose(cfPtr);
       rename("entry","book");
       cfPtr=fopen("library.info","r");
}



-->this one is done by my group.
this code dont have the one for Transaction...,but still it didn't 
work..,