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enhanced Socket::send where IP_SENDSRCADDR is available

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hyung-hwan
2018-10-25 06:56:27 +00:00
parent b8ef500278
commit ebe0ac92bf
1 changed files with 17 additions and 0 deletions
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17
qse/lib/si/Socket.cpp
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@ -588,6 +588,7 @@ qse_ssize_t Socket::send (const qse_ioptl_t* iov, int count, const SocketAddress
#if defined(AF_INET)
case AF_INET:
{
#if defined(IP_PKTINFO)
qse_uint8_t cmsgbuf[CMSG_SPACE(QSE_SIZEOF(struct in_pktinfo))];
msg.msg_control = cmsgbuf;
msg.msg_controllen = CMSG_LEN(QSE_SIZEOF(struct in_pktinfo));
@ -603,6 +604,22 @@ qse_ssize_t Socket::send (const qse_ioptl_t* iov, int count, const SocketAddress
pi->ipi_ifindex = 0; // let the kernel choose it
break;
#elif defined(IP_SENDSRCADDR)
qse_uint8_t cmsgbuf[CMSG_SPACE(QSE_SIZEOF(struct in_addr))];
msg.msg_control = cmsgbuf;
msg.msg_controllen = CMSG_LEN(QSE_SIZEOF(struct in_addr));
struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg);
cmsg->cmsg_level = IPPROTO_IP;
cmsg->cmsg_type = IP_SENDSRCADDR;
cmsg->cmsg_len = CMSG_LEN(QSE_SIZEOF(struct in_addr));
struct in_addr* pi = (struct in_addr*)CMSG_DATA(cmsg);
*pi = *(struct in_addr*)srcaddr.getIp6addr();
#else
this->setErrorCode (E_NOIMPL);
return -1;
#endif
}
#endif
#if defined(AF_INET6)