vnc bugfixes.

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Merge remote-tracking branch 'remotes/kraxel/tags/pull-vnc-20150310-1' into staging

vnc bugfixes.

# gpg: Signature made Tue Mar 10 10:37:51 2015 GMT using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-vnc-20150310-1:
  Fix crash when connecting to VNC through websocket
  vnc: -readconfig fix
  vnc: set id at parse time not init time

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

include/ui/console.h

@@ -332,7 +332,6 @@ void vnc_display_init(const char *id);
 void vnc_display_open(const char *id, Error **errp);
 void vnc_display_add_client(const char *id, int csock, bool skipauth);
 char *vnc_display_local_addr(const char *id);
-void vnc_auto_assign_id(QemuOptsList *olist, QemuOpts *opts);
 #ifdef CONFIG_VNC
 int vnc_display_password(const char *id, const char *password);
 int vnc_display_pw_expire(const char *id, time_t expires);

qmp.c

@@ -391,7 +391,6 @@ static void qmp_change_vnc_listen(const char *target, Error **errp)
         return;
     }
 
-    vnc_auto_assign_id(olist, opts);
     vnc_display_open("default", errp);
 }
 

ui/vnc-ws.c

@@ -207,8 +207,7 @@ static void vncws_send_handshake_response(VncState *vs, const char* key)
     }
 
     response = g_strdup_printf(WS_HANDSHAKE, accept);
-    vnc_write(vs, response, strlen(response));
-    vnc_flush(vs);
+    vnc_client_write_buf(vs, (const uint8_t *)response, strlen(response));
 
     g_free(accept);
     g_free(response);

ui/vnc.c

@@ -3687,12 +3687,7 @@ void vnc_display_add_client(const char *id, int csock, bool skipauth)
     vnc_connect(vs, csock, skipauth, false);
 }
 
-QemuOpts *vnc_parse_func(const char *str)
-{
-    return qemu_opts_parse(qemu_find_opts("vnc"), str, 1);
-}
-
-void vnc_auto_assign_id(QemuOptsList *olist, QemuOpts *opts)
+static void vnc_auto_assign_id(QemuOptsList *olist, QemuOpts *opts)
 {
     int i = 2;
     char *id;
@@ -3705,18 +3700,25 @@ void vnc_auto_assign_id(QemuOptsList *olist, QemuOpts *opts)
     qemu_opts_set_id(opts, id);
 }
 
-int vnc_init_func(QemuOpts *opts, void *opaque)
+QemuOpts *vnc_parse_func(const char *str)
 {
-    Error *local_err = NULL;
     QemuOptsList *olist = qemu_find_opts("vnc");
-    char *id = (char *)qemu_opts_id(opts);
+    QemuOpts *opts = qemu_opts_parse(olist, str, 1);
+    const char *id = qemu_opts_id(opts);
 
     if (!id) {
         /* auto-assign id if not present */
         vnc_auto_assign_id(olist, opts);
-        id = (char *)qemu_opts_id(opts);
     }
+    return opts;
+}
 
+int vnc_init_func(QemuOpts *opts, void *opaque)
+{
+    Error *local_err = NULL;
+    char *id = (char *)qemu_opts_id(opts);
+
+    assert(id);
     vnc_display_init(id);
     vnc_display_open(id, &local_err);
     if (local_err != NULL) {

vl.c

@@ -2001,7 +2001,6 @@ static DisplayType select_display(const char *p)
     } else if (strstart(p, "vnc", &opts)) {
 #ifdef CONFIG_VNC
         if (*opts == '=') {
-            display_remote++;
             if (vnc_parse_func(opts+1) == NULL) {
                 exit(1);
             }
@@ -3477,7 +3476,6 @@ int main(int argc, char **argv, char **envp)
                 break;
             case QEMU_OPTION_vnc:
 #ifdef CONFIG_VNC
-                display_remote++;
                 if (vnc_parse_func(optarg) == NULL) {
                     exit(1);
                 }
@@ -3970,6 +3968,11 @@ int main(int argc, char **argv, char **envp)
         }
     }
 
+#if defined(CONFIG_VNC)
+    if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
+        display_remote++;
+    }
+#endif
     if (display_type == DT_DEFAULT && !display_remote) {
 #if defined(CONFIG_GTK)
         display_type = DT_GTK;