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Allow nsock_iod_get_communication_info() to get latest UDP peer

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dmiller
2024-07-01 16:17:42 +00:00
parent ba4a108868
commit dde9c509ed
1 changed files with 5 additions and 1 deletions
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6
nsock/src/nsock_core.c
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@@ -638,11 +638,15 @@ static int do_actual_read(struct npool *ms, struct nevent *nse) {
err = socket_errno(); err = socket_errno();
} }
else { else {
if (peerlen > 0
#ifdef WIN32
/* Windows will ignore src_addr and addrlen arguments to recvfrom on TCP /* Windows will ignore src_addr and addrlen arguments to recvfrom on TCP
* sockets, so peerlen is still sizeof(peer) and peer is junk. Instead, * sockets, so peerlen is still sizeof(peer) and peer is junk. Instead,
* only set this if it's not already set. * only set this if it's not already set.
*/ */
if (peerlen > 0 && iod->peerlen == 0) { && (iod->lastproto == IPPROTO_UDP || iod->peerlen == 0)
#endif
) {
assert(peerlen <= sizeof(iod->peer)); assert(peerlen <= sizeof(iod->peer));
memcpy(&iod->peer, &peer, peerlen); memcpy(&iod->peer, &peer, peerlen);
iod->peerlen = peerlen; iod->peerlen = peerlen;