Thread: file printing problem!

Hi all,

I'm writing information in a .bin and I want to print it back onto the screen. I think the writing works pretty fine, but when I try to print....weird characters appear...I have no compile errors and I don't know how to solve this.
There are only 3 highscores. They get sorted by a qsort function, but I don't know why it's printing funny characters!


Below is the code:

Code:

//high Scores
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>

int compare(const void*, const void*);

typedef struct
{
           char name[20];
           int hs;
} HS;

void show_hs(void)
{
          FILE *f;
          int length,i;
          HS highscore[4];
          if((f = fopen("hs.bin","rb")) == NULL)
          {
          printf("There are no High Scores");
          }
          else
          {
                    fopen("hs.bin", "rb");
                    fread(&length, sizeof(int),1,f);
                    fread(&highscore, sizeof(char),length+1,f);
                    fclose(f);
                    printf("Highscores: \n");
                    for(i=0;i<2;i++)
                    {
                    printf("%d: %s - %d",i+1,highscore[i].name,highscore[i].hs);
                    }
          }
}




void add_hs(int score)
{
           FILE *f;
           int res, length;
           char plyr_nm[20];
           char c;
           int sw_ok = 0;


           HS highscore[4];
           while(!sw_ok)
           {
                                     printf("Please enter you name. (Max 3 characters long.\n");
                                     res = scanf("%s%c", &plyr_nm, &c);
                                     if (res != 2 || c != '\n' || strlen(plyr_nm) != 3 )
                                     {
                                                   printf("%d  %d",res,strlen(plyr_nm));
                                                   printf("Illegal input!\n");
                                                   printf("Try again : \n");
                                     }
                                     else
                                     {
                                                   sw_ok = 1;
                                     }
           }

           if((f = fopen("hs.bin","rb")) == NULL)
           {
                         strcpy(highscore[0].name, plyr_nm);
                         highscore[0].hs = score;
                         f = fopen("hs.bin", "wb");
                         length = 20;
                         fwrite(&length,sizeof(int),1,f);
                         fwrite(&highscore,sizeof(HS),length+1,f);
                         fclose(f);
           }
           else
           {
                          fopen("hs.bin", "rb");
                          fread(&length, sizeof(int),1,f);
                          fread(&highscore, sizeof(char),length+1,f);
                          fclose(f);
                          strcpy(highscore[4].name, plyr_nm);
                          highscore[4].hs = score;
                          qsort(highscore,4,sizeof(HS),compare);   //Sort the highscores
                          f = fopen("hs.bin", "wb");
                          length = 20;
                          fwrite(&length,sizeof(int),1,f);
                          fwrite(&highscore,sizeof(HS),lengte+1,f);
                          fclose(f);
           }




}


int compare( const void* a, const void* b )
{
           HS* score1 = (HS*) a;
           HS* score2 = (HS*) b;
           if( score1->hs  < score2->hs ) return -1;
           else if( score1->hs == score2->hs ) return 0;
           else return 1;
}