/*
* Recvmsg
*/
int
rxi_Recvmsg(osi_socket socket, struct msghdr *msg_p, int flags)
{
#if defined(HAVE_LINUX_ERRQUEUE_H) && defined(ADAPT_PMTU)
while((rxi_HandleSocketError(socket)) > 0)
;
#endif
return recvmsg(socket, msg_p, flags);
}
/*
* Simulate a blocking sendmsg on the non-blocking socket.
* It's non blocking because it was set that way for recvmsg.
*/
int
rxi_Sendmsg(osi_socket socket, struct msghdr *msg_p, int flags)
{
fd_set *sfds = (fd_set *) 0;
while (sendmsg(socket, msg_p, flags) == -1) {
int err;
rx_stats.sendSelects++;
if (!sfds) {
if (!(sfds = IOMGR_AllocFDSet())) {
(osi_Msg "rx failed to alloc fd_set: ");
perror("rx_sendmsg");
return -1;
}
FD_SET(socket, sfds);
}
#if defined(HAVE_LINUX_ERRQUEUE_H) && defined(ADAPT_PMTU)
while((rxi_HandleSocketError(socket)) > 0)
;
#endif
#ifdef AFS_NT40_ENV
if (WSAGetLastError())
#elif defined(AFS_LINUX22_ENV)
/* linux unfortunately returns ECONNREFUSED if the target port
* is no longer in use */
/* and EAGAIN if a UDP checksum is incorrect */
if (errno != EWOULDBLOCK && errno != ENOBUFS && errno != ECONNREFUSED
&& errno != EAGAIN)
#else
if (errno != EWOULDBLOCK && errno != ENOBUFS)
#endif
{
(osi_Msg "rx failed to send packet: ");
perror("rx_sendmsg");
#ifndef AFS_NT40_ENV
if (errno > 0)
return -errno;
#else
if (WSAGetLastError() > 0)
return -WSAGetLastError();
#endif
return -1;
}
while ((err = select(socket + 1, 0, sfds, 0, 0)) != 1) {
if (err >= 0 || errno != EINTR)
osi_Panic("rxi_sendmsg: select error %d.%d", err, errno);
}
}
if (sfds)
IOMGR_FreeFDSet(sfds);
return 0;
}