write_string
static int write_string(UI *ui, UI_STRING *uis);
.ui_write_string = write_string,
write_string(hunger_str, fp);
write_string(login_name, fp);
write_string(id_table[i].title, fp);
static void write_string(char *, FILE *);
write_string(fd_out, "Subject: Output from your job ");
write_string(fd_out, filename);
write_string(fd_out, "\n\n");
write_string(int fd, const char* a)