sm_io_vfprintf
int sm_io_vfprintf __P((SM_FILE_T *, int, const char *, va_list));
sm_io_vfprintf(SmDebugOutput, SmDebugOutput->f_timeout, fmt, ap);
ret = sm_io_vfprintf(fp, timeout, fmt, ap);
ret = sm_io_vfprintf(&fake, SM_TIME_FOREVER, fmt, ap);
ret = sm_io_vfprintf(&fake, SM_TIME_FOREVER, fmt, ap);
ret = sm_io_vfprintf(&fake, SM_TIME_FOREVER, fmt, ap);
return sm_io_vfprintf(smiostdout, timeout, fmt, ap);
ret = sm_io_vfprintf(&fake, SM_TIME_FOREVER, fmt, ap);