Introduce set_socket_error() to set the errno, use
WSASetLastError() for win32.
Sometimes, clean work would rewrite errno in error path,
we can use this function to restore real errno.
Changes from V5:
- create a function to set errno
Signed-off-by: Amos Kong <akong@xxxxxxxxxx>
diff --git a/qemu-sockets.c b/qemu-sockets.c
index 6bcb8e3..f822187 100644
--- a/qemu-sockets.c
+++ b/qemu-sockets.c
@@ -56,6 +56,11 @@ static QemuOptsList dummy_opts = {
},
};
+void set_errno(int e)
+{
+ errno = e;
+}
+
static int inet_getport(struct addrinfo *e)
{
struct sockaddr_in *i4;
diff --git a/qemu_socket.h b/qemu_socket.h
index fe4cf6c..62c1921 100644
--- a/qemu_socket.h
+++ b/qemu_socket.h
@@ -8,6 +8,7 @@
#include <ws2tcpip.h>
#define socket_error() WSAGetLastError()
+#define set_socket_error(e) WSASetLastError(e)
#undef EINTR
#define EWOULDBLOCK WSAEWOULDBLOCK
#define EINTR WSAEINTR
@@ -25,7 +26,10 @@ int inet_aton(const char *cp, struct in_addr *ia);
#include <netdb.h>
#include <sys/un.h>
+void set_errno(int e);
+
#define socket_error() errno
+#define set_socket_error(e) set_errno(e)
#define closesocket(s) close(s)
#endif /* !_WIN32 */
--
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