Program to count number of employee in the company using structures / file

#include <stdio.h>
#include <conio.h>
#include \"valid.c\"

struct emp_detail
{  int emp_no;
   char emp_name[10];
   int emp_age;
};

 void getWriteFileName(char *str);
 void getReadFileName(char *str);
 void enterData();
 void getTotalCount();
 void getName(char *);

 FILE *fp;
 int flag=1;
 int count=0;
 char filename[14];
 struct emp_detail emp_cur;

 void main()
 {
    char option;
    clrscr();
    printf(\"\\nDo you want to create the data file type \'y\' for yes and \'n\' for no.\");
    scanf(\"%c\", &option);
    fflush(NULL);

      if( option == \'y\' || option == \'Y\')
       getWriteFileName(filename);
      else if( option == \'n\' || option == \'N\')
       {   getReadFileName(filename);
       getTotalCount();
       }

    getch();
 }

 void enterData()
 {
    printf(\"\\nEnter data .....\");
    while(flag)
    {
    //printf(\"\\nEnter employee no. : \");
    //scanf(\"%d\", &emp_cur.emp_no);
    getPosInteger(\"Enter employee no. : \", &emp_cur.emp_no);
    fflush(NULL);

    printf(\"\\nEnter employee name : \");
       //scanf(\"%[^\\n]\", emp_cur.emp_name);
    getName(emp_cur.emp_name);
    fflush(NULL);

    //printf(\"\\nEnter employee age : \");
    //scanf(\"%d\", &emp_cur.emp_age);
    getPosInteger(\"Enter employee age : \", &emp_cur.emp_age);
    fflush(NULL);

    fprintf(fp,\"%d %-10s %d\", emp_cur.emp_no, emp_cur.emp_name, emp_cur.emp_age);

    if( flag > 0 )
       fprintf(fp,\"\\n\");

    flag++;

    if(emp_cur.emp_no != 9999)
    {   printf(\"\\nEnter 1 to continue and 0 to exit.\");
        scanf(\"%d\", &flag);
        fflush(NULL);
    }
    else flag=0;
    count++;
    }

    fclose(fp);
    printf(\"\\nTotal number of employee record entered is : %d\", count);
 }

    void getName(char *str)
    {
    int count=0;
    char *getstr;
    char readch=\'\\0\';
    int errorflag = 0;

       fflush(NULL);
       getstr = str;

       while(1)
       {
        scanf(\"%c\", &readch);
        if( readch == \'\\n\')
           break;
        if( isalpha(readch) == 0)
        {   printf(\"\\nInvalid entry. Enter characters only.\\nEnter name again :\");
            errorflag = 1;
            break;
        }
        else
            *getstr = readch;

        count++;
        getstr++;
        if( count >= 10 )
          break;
       }

       if(errorflag)
          getName(emp_cur.emp_name);

      // *getstr=\'\\0\';
    }

   void getWriteFileName(char *str)
   {
     printf(\"Enter Output File name maxium 14 character : \");
     scanf(\"%s\", str);

     if( ( fp = fopen(str, \"wt\") ) == NULL  )
     {  fclose(fp);
    printf(\"\\nInvalid file name entered.\");
     }
     else
    enterData();
  }

   void getReadFileName(char *str)
   {
     printf(\"Enter Input File name maxium 14 character : \");
     scanf(\"%s\", str);

     if( ( fp = fopen(str, \"r+t\") ) == NULL  )
     {  fclose(fp);
    printf(\"\\nInvalid file name entered.\");
     }
   }

    void getTotalCount()
    {  flag =0;
       while( feof(fp) == 0 )
       {
      fscanf(fp, \"%d %10s %4d\", &emp_cur.emp_name, emp_cur.emp_name, &emp_cur.emp_age);
      flag++;
       }
      fclose(fp);
      printf(\"\\nTotal number of employee record entered is : %d\", flag);

    }

    /**************************** Input/Output ********************************/


    Do you want to create the data file type \'y\' for yes and \'n\' for no.y
    Enter Output File name maxium 14 character : output.txt

    Enter data .....
    Enter employee no. : 1

    Enter employee name : chintan

    Enter employee age : 26

    Enter 1 to continue and 0 to exit.1

    Enter employee no. : 9999

    Enter employee name : nilay

    Enter employee age : 29

    Total number of employee record entered is : 2

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