File copy tool, show size and copy rate?

if (from==NULL) perror ("Error opening file");
  else
  {
    fseek (from, 0, SEEK_END); 
    size=ftell (from);
    fclose (from);
    printf ("Size of myfile.txt: %ld bytes.\n",size);
  }

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char *argv[])
long getFileSize(const char *filename)
{
  long size;
  FILE *from, *to;
  char ch;


  if(argc!=3) {
    printf("Usage: copy <source> <destination>\n");
    exit(1);
  }

  /* open source file */
  if((from = fopen(argv[1], "rb"))==NULL) {
    printf("Cannot open source file.\n");
    exit(1);
  }

  /* open destination file */
  if((to = fopen(argv[2], "wb"))==NULL) {
    printf("Cannot open destination file.\n");
    exit(1);
  }

  /* copy the file */
  while(!feof(from)) {
    ch = fgetc(from);
    if(ferror(from)) {
      printf("Error reading source file.\n");
      exit(1);
    }
    if(!feof(from)) fputc(ch, to);
    if(ferror(to)) {
      printf("Error writing destination file.\n");
      exit(1);
    }
  }

  if(fclose(from)==EOF) {
    printf("Error closing source file.\n");
    exit(1);
  }

  if(fclose(to)==EOF) {
    printf("Error closing destination file.\n");
    exit(1);
  }

  if (from==NULL) perror ("Error opening file");
  else
  {
    fseek (from, 0, SEEK_END); 
    size=ftell (from);
    fclose (from);
    printf ("Size of myfile=: %ld bytes.\n",size);
  }
  return 0;
}