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/lk-master/external/lib/lwip/api/
A Dsockets.c563 u16_t buflen, copylen; in lwip_recvfrom() local
641 copylen = buflen; in lwip_recvfrom()
643 copylen = (u16_t)len; in lwip_recvfrom()
648 pbuf_copy_partial(p, (u8_t*)mem + off, copylen, sock->lastoffset); in lwip_recvfrom()
650 off += copylen; in lwip_recvfrom()
653 LWIP_ASSERT("invalid copylen, len would underflow", len >= copylen); in lwip_recvfrom()
654 len -= copylen; in lwip_recvfrom()
716 if ((netconn_type(sock->conn) == NETCONN_TCP) && (buflen - copylen > 0)) { in lwip_recvfrom()
718 sock->lastoffset += copylen; in lwip_recvfrom()

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