int memcpy_fromiovec(unsigned char *kdata, struct iovec *iov, int len);
int memcpy_toiovec(struct iovec *iov, unsigned char *kdata, int len);
-
+int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov,
+ int offset, int len);
+int memcpy_toiovecend(const struct iovec *v, unsigned char *kdata,
+ int offset, int len);
#endif