#include <string.h>

char *strsep (char **stringp, char *delim)
{
  char *save_string, *brk;
 
  if ((save_string = *stringp) == NULL)
    return (NULL);

  if (brk = strpbrk (*stringp, delim))
    {
      *brk = '\0';
      
      *stringp = brk + 1;

    }
  else
    {
      *stringp = NULL;
    }
  
  return (save_string);
}


#ifdef TEST

#include <stdio.h>

main()
{
  char *string = "one two three four five";

  while (string)
    {
      char *token;

      while ((token = strsep (&string, " ")) && (*token == '\0')) ;

      printf ("%s\n", token);
    }
}

#endif