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windows: Map WSAGetLastError() to errno failures in wrapped send/recv/from/to

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This commit is contained in:
Martin Willi
2014-06-04 15:52:59 +02:00
parent 20021277f2
commit df0769299a
1 changed files with 80 additions and 12 deletions
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src/libstrongswan/utils/windows.c
+80 -12
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@@ -98,6 +98,74 @@ int socketpair(int domain, int type, int protocol, int sv[2])
return -1; return -1;
} }
/**
* Set errno for a function setting WSA error on failure
*/
static int wserr(int retval)
{
if (retval < 0)
{
switch (WSAGetLastError())
{
case WSANOTINITIALISED:
errno = EBADF;
break;
case WSAENETDOWN:
case WSAENETRESET:
case WSAESHUTDOWN:
errno = EPIPE;
break;
case WSAEACCES:
errno = EACCES;
break;
case WSAEINTR:
errno = EINTR;
break;
case WSAEINPROGRESS:
errno = EBUSY;
break;
case WSAEFAULT:
errno = EFAULT;
break;
case WSAENOBUFS:
errno = ENOMEM;
break;
case WSAENOTSOCK:
errno = EINVAL;
break;
case WSAEOPNOTSUPP:
errno = ENOSYS;
break;
case WSAEWOULDBLOCK:
errno = EWOULDBLOCK;
break;
case WSAEMSGSIZE:
errno = ENOSPC;
break;
case WSAEINVAL:
errno = EINVAL;
break;
case WSAENOTCONN:
case WSAEHOSTUNREACH:
case WSAECONNABORTED:
case WSAECONNRESET:
errno = EIO;
break;
case WSAETIMEDOUT:
errno = ESRCH;
break;
default:
errno = ENOENT;
break;
}
}
else
{
errno = 0;
}
return retval;
}
/** /**
* Check and clear the dontwait flag * Check and clear the dontwait flag
*/ */
@@ -122,11 +190,11 @@ ssize_t windows_recv(int sockfd, void *buf, size_t len, int flags)
if (!check_dontwait(&flags)) if (!check_dontwait(&flags))
{ {
return recv(sockfd, buf, len, flags); return wserr(recv(sockfd, buf, len, flags));
} }
if (ioctlsocket(sockfd, FIONBIO, &on) == 0) if (wserr(ioctlsocket(sockfd, FIONBIO, &on) == 0))
{ {
outlen = recv(sockfd, buf, len, flags); outlen = wserr(recv(sockfd, buf, len, flags));
ioctlsocket(sockfd, FIONBIO, &off); ioctlsocket(sockfd, FIONBIO, &off);
} }
return outlen; return outlen;
@@ -144,11 +212,11 @@ ssize_t windows_recvfrom(int sockfd, void *buf, size_t len, int flags,
if (!check_dontwait(&flags)) if (!check_dontwait(&flags))
{ {
return recvfrom(sockfd, buf, len, flags, src_addr, addrlen); return wserr(recvfrom(sockfd, buf, len, flags, src_addr, addrlen));
} }
if (ioctlsocket(sockfd, FIONBIO, &on) == 0) if (wserr(ioctlsocket(sockfd, FIONBIO, &on)) == 0)
{ {
outlen = recvfrom(sockfd, buf, len, flags, src_addr, addrlen); outlen = wserr(recvfrom(sockfd, buf, len, flags, src_addr, addrlen));
ioctlsocket(sockfd, FIONBIO, &off); ioctlsocket(sockfd, FIONBIO, &off);
} }
return outlen; return outlen;
@@ -165,11 +233,11 @@ ssize_t windows_send(int sockfd, const void *buf, size_t len, int flags)
if (!check_dontwait(&flags)) if (!check_dontwait(&flags))
{ {
return send(sockfd, buf, len, flags); return wserr(send(sockfd, buf, len, flags));
} }
if (ioctlsocket(sockfd, FIONBIO, &on) == 0) if (wserr(ioctlsocket(sockfd, FIONBIO, &on)) == 0)
{ {
outlen = send(sockfd, buf, len, flags); outlen = wserr(send(sockfd, buf, len, flags));
ioctlsocket(sockfd, FIONBIO, &off); ioctlsocket(sockfd, FIONBIO, &off);
} }
return outlen; return outlen;
@@ -187,11 +255,11 @@ ssize_t windows_sendto(int sockfd, const void *buf, size_t len, int flags,
if (!check_dontwait(&flags)) if (!check_dontwait(&flags))
{ {
return sendto(sockfd, buf, len, flags, dest_addr, addrlen); return wserr(sendto(sockfd, buf, len, flags, dest_addr, addrlen));
} }
if (ioctlsocket(sockfd, FIONBIO, &on) == 0) if (wserr(ioctlsocket(sockfd, FIONBIO, &on)) == 0)
{ {
outlen = sendto(sockfd, buf, len, flags, dest_addr, addrlen); outlen = wserr(sendto(sockfd, buf, len, flags, dest_addr, addrlen));
ioctlsocket(sockfd, FIONBIO, &off); ioctlsocket(sockfd, FIONBIO, &off);
} }
return outlen; return outlen;