Cumulative patch from commit 39b420f7b12b152f879d1bb8a5267b9a838e04dc

39b420f HS 2.0R2: Add parse_cert command for debugging purposes
c0d701a HS 2.0R2: Add OSU client implementation
d2bb2b4 Add os_file_exists()
1cb3eda HS 2.0R2: Add wrapper functions for libcurl
2cb8f96 HS 2.0R2: Add wrapper functions for libxml2
da4ec2c HS 2.0R2: Add wrapper for system browser
db3ca20 HS 2.0R2: Add wrapper for wpadebug browser on Android
2a10e57 HS 2.0R2: Add wrapper for Android browser for user interaction
d0b79d7 HS 2.0R2: Add wrapper functions for WebKit
91728f2 Add wpa_ctrl helper functions for upper level functionality
b4c26ef Clean up hostapd_config_fill() parsers
b2e32cd Fix memory leaks on wpa_config_parse_string() error paths
a0b728b Simplify hostapd_config_fill() error reporting
599f40d Remove extra indentation level from hostapd_config_fill()

Change-Id: I17b7089210da7e083c9fe5814e79cef99bbee80b
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/utils/xml-utils.h b/src/utils/xml-utils.h
new file mode 100644
index 0000000..0d8e0cb
--- /dev/null
+++ b/src/utils/xml-utils.h
@@ -0,0 +1,100 @@
+/*
+ * Generic XML helper functions
+ * Copyright (c) 2012-2013, Qualcomm Atheros, Inc.
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#ifndef XML_UTILS_H
+#define XML_UTILS_H
+
+struct xml_node_ctx;
+typedef struct xml_node xml_node_t;
+typedef struct xml_namespace_foo xml_namespace_t;
+
+/* XML library wrappers */
+
+int xml_validate(struct xml_node_ctx *ctx, xml_node_t *node,
+		 const char *xml_schema_fname, char **ret_err);
+int xml_validate_dtd(struct xml_node_ctx *ctx, xml_node_t *node,
+		     const char *dtd_fname, char **ret_err);
+void xml_node_free(struct xml_node_ctx *ctx, xml_node_t *node);
+xml_node_t * xml_node_get_parent(struct xml_node_ctx *ctx, xml_node_t *node);
+xml_node_t * xml_node_from_buf(struct xml_node_ctx *ctx, const char *buf);
+const char * xml_node_get_localname(struct xml_node_ctx *ctx,
+				    xml_node_t *node);
+char * xml_node_to_str(struct xml_node_ctx *ctx, xml_node_t *node);
+void xml_node_detach(struct xml_node_ctx *ctx, xml_node_t *node);
+void xml_node_add_child(struct xml_node_ctx *ctx, xml_node_t *parent,
+			xml_node_t *child);
+xml_node_t * xml_node_create_root(struct xml_node_ctx *ctx, const char *ns_uri,
+				  const char *ns_prefix,
+				  xml_namespace_t **ret_ns, const char *name);
+xml_node_t * xml_node_create(struct xml_node_ctx *ctx, xml_node_t *parent,
+			     xml_namespace_t *ns, const char *name);
+xml_node_t * xml_node_create_text(struct xml_node_ctx *ctx,
+				  xml_node_t *parent, xml_namespace_t *ns,
+				  const char *name, const char *value);
+xml_node_t * xml_node_create_text_ns(struct xml_node_ctx *ctx,
+				     xml_node_t *parent, const char *ns_uri,
+				     const char *name, const char *value);
+void xml_node_set_text(struct xml_node_ctx *ctx, xml_node_t *node,
+		       const char *value);
+int xml_node_add_attr(struct xml_node_ctx *ctx, xml_node_t *node,
+		      xml_namespace_t *ns, const char *name, const char *value);
+char * xml_node_get_attr_value(struct xml_node_ctx *ctx, xml_node_t *node,
+			       char *name);
+char * xml_node_get_attr_value_ns(struct xml_node_ctx *ctx, xml_node_t *node,
+				  const char *ns_uri, char *name);
+void xml_node_get_attr_value_free(struct xml_node_ctx *ctx, char *val);
+xml_node_t * xml_node_first_child(struct xml_node_ctx *ctx,
+				  xml_node_t *parent);
+xml_node_t * xml_node_next_sibling(struct xml_node_ctx *ctx,
+				   xml_node_t *node);
+int xml_node_is_element(struct xml_node_ctx *ctx, xml_node_t *node);
+char * xml_node_get_text(struct xml_node_ctx *ctx, xml_node_t *node);
+void xml_node_get_text_free(struct xml_node_ctx *ctx, char *val);
+char * xml_node_get_base64_text(struct xml_node_ctx *ctx, xml_node_t *node,
+				int *ret_len);
+xml_node_t * xml_node_copy(struct xml_node_ctx *ctx, xml_node_t *node);
+
+#define xml_node_for_each_child(ctx, child, parent) \
+for (child = xml_node_first_child(ctx, parent); \
+     child; \
+     child = xml_node_next_sibling(ctx, child))
+
+#define xml_node_for_each_sibling(ctx, node) \
+for (; \
+     node; \
+     node = xml_node_next_sibling(ctx, node))
+
+#define xml_node_for_each_check(ctx, child) \
+if (!xml_node_is_element(ctx, child)) \
+	continue
+
+typedef void (*debug_print_func)(void *ctx, int print, const char *fmt, ...)
+	__attribute__ ((format (printf, 3, 4)));
+
+
+struct xml_node_ctx * xml_node_init_ctx(void *upper_ctx,
+					const void *env);
+void xml_node_deinit_ctx(struct xml_node_ctx *ctx);
+
+
+xml_node_t * get_node_uri(struct xml_node_ctx *ctx, xml_node_t *root,
+			  const char *uri);
+xml_node_t * get_node(struct xml_node_ctx *ctx, xml_node_t *root,
+		      const char *path);
+xml_node_t * get_child_node(struct xml_node_ctx *ctx, xml_node_t *root,
+			    const char *path);
+xml_node_t * node_from_file(struct xml_node_ctx *ctx, const char *name);
+int node_to_file(struct xml_node_ctx *ctx, const char *fname, xml_node_t *node);
+xml_node_t * mo_to_tnds(struct xml_node_ctx *ctx, xml_node_t *mo,
+			int use_path, const char *urn, const char *ns_uri);
+xml_node_t * tnds_to_mo(struct xml_node_ctx *ctx, xml_node_t *tnds);
+
+xml_node_t * soap_build_envelope(struct xml_node_ctx *ctx, xml_node_t *node);
+xml_node_t * soap_get_body(struct xml_node_ctx *ctx, xml_node_t *soap);
+
+#endif /* XML_UTILS_H */