extern void uci_perror(struct uci_context *ctx, const char *str);
/**
+ * uci_import: Import uci config data from a stream
+ * @ctx: uci context
+ * @stream: file stream to import from
+ * @name: (optional) assume the config has the given name
+ * @cfg: (optional) store the last parsed config package in this variable
+ *
+ * the name parameter is for config files that don't explicitly use the 'package <...>' keyword
+ */
+extern int uci_import(struct uci_context *ctx, FILE *stream, const char *name, struct uci_config **cfg);
+
+/**
+ * uci_export: Export one or all uci config packages
+ * @ctx: uci context
+ * @stream: output stream
+ * @cfg: (optional) uci config package to export
+ */
+extern int uci_export(struct uci_context *ctx, FILE *stream, struct uci_config *cfg);
+
+/**
* uci_load: Parse an uci config file and store it in the uci context
*
* @ctx: uci context
*
* @ctx: uci context
*/
-extern char **uci_list_configs(struct uci_context *ctx);
+extern char **uci_list_configs();
/* UCI data structures */
struct uci_context
{
+ /* list of config packages */
struct uci_list root;
- /* for error handling only */
+ /* parser context, use for error handling only */
struct uci_parse_context *pctx;
/* private: */
int errno;
jmp_buf trap;
+ char *buf;
+ int bufsz;
};
struct uci_parse_context
{
+ /* error context */
+ const char *reason;
int line;
int byte;
/* private: */
struct uci_config *cfg;
+ struct uci_section *section;
FILE *file;
+ const char *name;
char *buf;
- char *reason;
int bufsz;
};
struct uci_list sections;
struct uci_context *ctx;
char *name;
+ /* private: */
+ int n_section;
};
struct uci_section
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
#endif
-#define uci_list_empty(list) (list->next == ptr)
+/* returns true if a list is empty */
+#define uci_list_empty(list) ((list)->next == (list))
+
+/**
+ * uci_list_entry: casts an uci_list pointer to the containing struct.
+ * @_type: config, section or option
+ * @_ptr: pointer to the uci_list struct
+ */
#define uci_list_entry(_type, _ptr) \
((struct uci_ ## _type *) ((char *)(_ptr) - offsetof(struct uci_ ## _type,list)))
+/**
+ * uci_foreach_entry: loop through a list of configs, sections or options
+ * @_type: see uci_list_entry
+ * @_list: pointer to the uci_list struct
+ * @_ptr: iteration variable
+ *
+ * use like a for loop, e.g:
+ * uci_foreach(section, &list, p) {
+ * ...
+ * }
+ */
#define uci_foreach_entry(_type, _list, _ptr) \
for(_ptr = uci_list_entry(_type, (_list)->next); \
&_ptr->list != (_list); \