_IO_no_init (&f._sbf._f, _IO_USER_LOCK, -1, NULL, NULL);
_IO_JUMPS ((struct _IO_FILE_plus *) &f._sbf) = &_IO_str_chk_jumps;
/*
s[0] = '\0';
*/
_IO_str_init_static_internal (&f, s, slen - 1, s);
/* For flags > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n