Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / include / env_attr.h

diff --git a/qemu/roms/u-boot/include/env_attr.h b/qemu/roms/u-boot/include/env_attr.h
new file mode 100644 (file)
index 0000000..b82fec9
--- /dev/null
+++ b/qemu/roms/u-boot/include/env_attr.h
@@ -0,0 +1,39 @@
+/*
+ * (C) Copyright 2012
+ * Joe Hershberger, National Instruments, joe.hershberger@ni.com
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#ifndef __ENV_ATTR_H__
+#define __ENV_ATTR_H__
+
+#define ENV_ATTR_LIST_DELIM    ','
+#define ENV_ATTR_SEP           ':'
+
+/*
+ * env_attr_walk takes as input an "attr_list" that takes the form:
+ *     attributes = [^,:\s]*
+ *     entry = name[:attributes]
+ *     list = entry[,list]
+ * It will call the "callback" function with the "name" and attribute as "value"
+ * The callback may return a non-0 to abort the list walk.
+ * This return value will be passed through to the caller.
+ * 0 is returned on success.
+ */
+extern int env_attr_walk(const char *attr_list,
+       int (*callback)(const char *name, const char *value));
+
+/*
+ * env_attr_lookup takes as input an "attr_list" with the same form as above.
+ * It also takes as input a "name" to look for.
+ * If the name is found in the list, it's value is copied into "attributes".
+ * There is no protection on attributes being too small for the value.
+ * It returns -1 if attributes is NULL, 1 if "name" is not found, 2 if
+ * "attr_list" is NULL.
+ * Returns 0 on success.
+ */
+extern int env_attr_lookup(const char *attr_list, const char *name,
+       char *attributes);
+
+#endif /* __ENV_ATTR_H__ */