[PATCH] add udevd and udevsend to the spec file.

[elogind.git] / udevdb.c

diff --git a/udevdb.c b/udevdb.c
index 2d99f51d0e4ef819efc0b1638a3910db7b23c092..c4e064fc115d4414ef21cbbbc44403ed4570e7bc 100644 (file)
--- a/udevdb.c
+++ b/udevdb.c
@@ -143,25 +143,62 @@ int udevdb_open_ro(void)
        return 0;
 }
 
-void (*user_record_callback) (char *path, struct udevice *dev);
+static int (*user_record_callback) (char *path, struct udevice *dev);
 
 static int traverse_callback(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
 {
-       user_record_callback((char*) key.dptr, (struct udevice*) dbuf.dptr);
-       return 0;
+       return user_record_callback((char*) key.dptr, (struct udevice*) dbuf.dptr);
 }
 
 /**
- * udevdb_dump: dumps whole database by passing record data to user function
+ * udevdb_call_foreach: dumps whole database by passing record data to user function
  * @user_record_handler: user function called for every record in the database
  */
-int udevdb_dump(void (*user_record_handler) (char *path, struct udevice *dev))
+int udevdb_call_foreach(int (*user_record_handler) (char *path, struct udevice *dev))
 {
+       int retval = 0;
+
        if (user_record_handler == NULL) {
                dbg("invalid user record handling function");
                return -EINVAL;
        }
        user_record_callback = user_record_handler;
-       tdb_traverse(udevdb, traverse_callback, NULL);
+       retval = tdb_traverse(udevdb, traverse_callback, NULL);
+       if (retval < 0)
+               return -ENODEV;
+       else
+               return 0;
+}
+
+static struct udevice *find_dev;
+static char *find_path;
+static const char *find_name;
+static int find_found;
+
+static int find_device_by_name(char *path, struct udevice *dev)
+{
+       if (strncmp(dev->name, find_name, sizeof(dev->name)) == 0) {
+               memcpy(find_dev, dev, sizeof(*find_dev));
+               strncpy(find_path, path, NAME_SIZE);
+               find_found = 1;
+               /* stop search */
+               return 1;
+       }
        return 0;
 }
+
+/**
+ * udevdb_get_dev_byname: search device with given name by traversing the whole database
+ */
+int udevdb_get_dev_byname(const char *name, char *path, struct udevice *dev)
+{
+       find_found = 0;
+       find_path = path;
+       find_dev = dev;
+       find_name = name;
+       udevdb_call_foreach(find_device_by_name);
+       if (find_found == 1)
+               return 0;
+       else
+               return -1;
+}