int32_t destiny_socket_recvfrom(int s, void *buf, uint32_t len, int flags,
sockaddr6_t *from, uint32_t *fromlen)
{
if (isUDPSocket(s)) {
msg_t m_recv, m_send;
ipv6_hdr_t *ipv6_header;
udp_hdr_t *udp_header;
uint8_t *payload;
get_socket(s)->recv_pid = thread_getpid();
msg_receive(&m_recv);
ipv6_header = ((ipv6_hdr_t *)m_recv.content.ptr);
udp_header = ((udp_hdr_t *)(m_recv.content.ptr + IPV6_HDR_LEN));
payload = (uint8_t *)(m_recv.content.ptr + IPV6_HDR_LEN + UDP_HDR_LEN);
memset(buf, 0, len);
memcpy(buf, payload, udp_header->length - UDP_HDR_LEN);
memcpy(&from->sin6_addr, &ipv6_header->srcaddr, 16);
from->sin6_family = AF_INET6;
from->sin6_flowinfo = 0;
from->sin6_port = udp_header->src_port;
*fromlen = sizeof(sockaddr6_t);
msg_reply(&m_recv, &m_send);
return udp_header->length - UDP_HDR_LEN;
}
else if (is_tcp_socket(s)) {
return destiny_socket_recv(s, buf, len, flags);
}
else {
printf("Socket Type not supported!\n");
return -1;
}
}
int flagless_recv(int fd, void *buf, size_t len)
{
return (int)destiny_socket_recv(fd, buf, (uint32_t)len, 0);
}