[gnome-bluetooth] settings: Vendor from OUI helper function

[Bastien Nocera <hadess src gnome org>]

commit 49b84e8f5a4619788d85fef9b289154776ab6a29
Author: Bastien Nocera <hadess hadess net>
Date:   Mon Dec 9 23:37:15 2013 +0100

    settings: Vendor from OUI helper function

 configure.ac |    2 +-
 lib/pin.c    |   49 +++++++++++++++++++++++++++++++++++++++++++++++++
 lib/pin.h    |    1 +
 3 files changed, 51 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 708f966..219e670 100644
--- a/configure.ac
+++ b/configure.ac
@@ -88,7 +88,7 @@ dnl Requires for the input helper
 PKG_CHECK_MODULES(INPUT, gdk-3.0 gtk+-3.0)
 
 dnl Requires for the public library
-PKG_CHECK_MODULES(LIBGNOMEBT, gmodule-2.0 gio-unix-2.0 gtk+-3.0)
+PKG_CHECK_MODULES(LIBGNOMEBT, gmodule-2.0 gio-unix-2.0 gtk+-3.0 libudev)
 
 GDBUS_CODEGEN="gdbus-codegen"
 AC_SUBST(GDBUS_CODEGEN)
diff --git a/lib/pin.c b/lib/pin.c
index 390b497..74e6c87 100644
--- a/lib/pin.c
+++ b/lib/pin.c
@@ -28,6 +28,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <glib.h>
+#include <libudev.h>
 #include <bluetooth-enums.h>
 #include <bluetooth-utils.h>
 
@@ -36,6 +37,54 @@
 #define PIN_CODE_DB "pin-code-database.xml"
 #define MAX_DIGITS_PIN_PREFIX "max:"
 
+char *
+oui_to_vendor (const char *oui)
+{
+       struct udev *udev;
+       struct udev_hwdb *hwdb;
+       struct udev_list_entry *list, *l;
+       char *modalias;
+       char *vendor = NULL;
+
+       if (oui == NULL ||
+           strlen (oui) < 8)
+               return NULL;
+
+       udev = udev_new ();
+       if (udev == NULL)
+               goto bail;
+
+       hwdb = udev_hwdb_new (udev);
+       if (hwdb == NULL)
+               goto bail;
+
+       modalias = g_strdup_printf ("OUI:%c%c%c%c%c%c",
+                                   g_ascii_toupper (oui[0]),
+                                   g_ascii_toupper (oui[1]),
+                                   g_ascii_toupper (oui[3]),
+                                   g_ascii_toupper (oui[4]),
+                                   g_ascii_toupper (oui[6]),
+                                   g_ascii_toupper (oui[7]));
+
+       list = udev_hwdb_get_properties_list_entry (hwdb, modalias, 0);
+
+       udev_list_entry_foreach (l, list) {
+               const char *name = udev_list_entry_get_name (l);
+
+               if (g_strcmp0 (name, "ID_OUI_FROM_DATABASE") == 0) {
+                       vendor = g_strdup (udev_list_entry_get_value (l));
+                       break;
+               }
+       }
+
+bail:
+       g_clear_pointer (&modalias, g_free);
+       g_clear_pointer (&hwdb, udev_hwdb_unref);
+       g_clear_pointer (&udev, udev_unref);
+
+       return vendor;
+}
+
 #define TYPE_IS(x, r) {                                \
        if (g_str_equal(type, x)) return r;     \
 }
diff --git a/lib/pin.h b/lib/pin.h
index 815969d..db7d323 100644
--- a/lib/pin.h
+++ b/lib/pin.h
@@ -25,6 +25,7 @@
 
 #define PIN_NUM_DIGITS 6
 
+char *oui_to_vendor (const char *oui);
 char *get_pincode_for_device (guint       type,
                              const char *address,
                              const char *name,