[Qemu-devel] [for-2.9 2/8] char: Fix socket with "type": "vsock" address

[Markus Armbruster]

Watch this:

    $ qemu-system-x86_64 -nodefaults -S -display none -qmp stdio
    {"QMP": {"version": {"qemu": {"micro": 91, "minor": 8, "major": 2}, 
"package": " (v2.8.0-1195-gf84141e-dirty)"}, "capabilities": []}}
    { "execute": "qmp_capabilities" }
    {"return": {}}
    { "execute": "chardev-add", "arguments": { "id": "chr0", "backend": { 
"type": "socket", "data": { "addr": { "type": "vsock", "data": { "cid": "CID", 
"port": "P" }}}}}}
    Aborted (core dumped)

Crashes because SocketAddress_to_str() is blissfully unaware of
SOCKET_ADDRESS_KIND_VSOCK.  Fix that.  Pick the output format to match
socket_parse(), just like the existing formats.

Cc: Stefan Hajnoczi <address@hidden>
Cc: Paolo Bonzini <address@hidden>
Cc: Marc-André Lureau <address@hidden>
Signed-off-by: Markus Armbruster <address@hidden>
---
 chardev/char-socket.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/chardev/char-socket.c b/chardev/char-socket.c
index 6344b07..36ab0d6 100644
--- a/chardev/char-socket.c
+++ b/chardev/char-socket.c
@@ -357,6 +357,10 @@ static char *SocketAddress_to_str(const char *prefix, 
SocketAddress *addr,
         return g_strdup_printf("%sfd:%s%s", prefix, addr->u.fd.data->str,
                                is_listen ? ",server" : "");
         break;
+    case SOCKET_ADDRESS_KIND_VSOCK:
+        return g_strdup_printf("%svsock:%s:%s", prefix,
+                               addr->u.vsock.data->cid,
+                               addr->u.vsock.data->port);
     default:
         abort();
     }
-- 
2.7.4