+ int ret = __syscall(SYS_fstat, fd, st);
+ if (ret != -EBADF || __syscall(SYS_fcntl, fd, F_GETFD) < 0)
+ return __syscall_ret(ret);
+
+ char buf[15+3*sizeof(int)];
+ __procfdname(buf, fd);
+#ifdef SYS_stat
+ return syscall(SYS_stat, buf, st);
+#else
+ return syscall(SYS_fstatat, AT_FDCWD, buf, st, 0);
+#endif