tests/qtest: Use send/recv for socket communication

Socket communication in the libqtest and libqmp codes uses read()
and write() which work on any file descriptor on *nix, and sockets
in *nix are an example of a file descriptor.

However sockets on Windows do not use *nix-style file descriptors,
so read() and write() cannot be used on sockets on Windows.
Switch over to use send() and recv() instead which work on both
Windows and *nix.

Signed-off-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20221028045736.679903-3-bin.meng@windriver.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/tests/qtest/libqtest.c b/tests/qtest/libqtest.c
index b23eb3edc3..b01846fd98 100644
--- a/tests/qtest/libqtest.c
+++ b/tests/qtest/libqtest.c
@@ -27,6 +27,7 @@
 #include "libqmp.h"
 #include "qemu/ctype.h"
 #include "qemu/cutils.h"
+#include "qemu/sockets.h"
 #include "qapi/qmp/qdict.h"
 #include "qapi/qmp/qjson.h"
 #include "qapi/qmp/qlist.h"
@@ -428,7 +429,7 @@ void qtest_quit(QTestState *s)
 
 static void socket_send(int fd, const char *buf, size_t size)
 {
-    size_t res = qemu_write_full(fd, buf, size);
+    ssize_t res = qemu_send_full(fd, buf, size);
 
     assert(res == size);
 }
@@ -460,7 +461,7 @@ static GString *qtest_client_socket_recv_line(QTestState *s)
         ssize_t len;
         char buffer[1024];
 
-        len = read(s->fd, buffer, sizeof(buffer));
+        len = recv(s->fd, buffer, sizeof(buffer), 0);
         if (len == -1 && errno == EINTR) {
             continue;
         }