extern void IP_Send(int IfNum, int AF, const void *Src, const void *Dst, uint8_t proto,
int BufCount, size_t BufLens[], const void *Bufs[]);
-extern bool IP_Pkt_Check(size_t len, const void *data, size_t *ofs, int AF, const void *Src, const void *Dst, uint8_t proto);
+extern bool IP_Pkt_Check(size_t len, const void *data, size_t *out_ofs, size_t *out_len, int AF, const void *Src, const void *Dst, uint8_t proto);
#endif