libxl: fix parse_backend_path and device_backend_path to be mutual

Currently if libxl__parse_backend_path is used and then you try to get
the original path again with libxl__device_backend_path the
result is wrong. This patch fixes the issue, so transformation from
path to libxl__device and back is reciprocal.

Signed-off-by: Roger Pau Monne <roger.pau@entel.upc.edu>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>

diff --git a/tools/libxl/libxl_device.c b/tools/libxl/libxl_device.c
index 5d05e90cb43be281392aef8cf88158dc2adb34ad..834375c7ea74e180ef4dc83395f3eedc7cba148c 100644 (file)
--- a/tools/libxl/libxl_device.c
+++ b/tools/libxl/libxl_device.c
@@ -46,12 +46,11 @@ int libxl__parse_backend_path(libxl__gc *gc,
 {
     /* /local/domain/<domid>/backend/<kind>/<domid>/<devid> */
     char strkind[16]; /* Longest is actually "console" */
-    uint32_t domain;
-    int rc = sscanf(path, "/local/domain/%d/backend/%15[^/]/%d/%d",
+    int rc = sscanf(path, "/local/domain/%d/backend/%15[^/]/%u/%d",
                     &dev->backend_domid,
                     strkind,
-                    &domain,
-                    &dev->backend_devid);
+                    &dev->domid,
+                    &dev->devid);
 
     if (rc != 4)
         return ERROR_FAIL;