/*
 * Actually copy one file into another.
 */
#include <stdio.h>
#include <stddef.h>

long fileCopy(const char *dest, const char *source)
{
  FILE *sfp;                      /* source file pointer */
  FILE *dfp;                      /* destination file pointer */
  int  c;                         /* next input character */
  long cnt = -1L;                 /* count of characters copied */

  if ((sfp = fopen(source,"rb")) == NULL)
    printf("Can't open %s for reading\n", source);
  else
  {
    if ((dfp = fopen(dest,"wb")) == NULL)
      printf("Can't open %s for writing\n", dest);
    else
    {
      for (cnt = 0L; (c = getc(sfp)) != EOF; cnt++)
        putc(c,dfp);
      fclose(dfp);
    }
    fclose(sfp);
  }
  return cnt;
}