#ifndef __LIBUCI_H
#define __LIBUCI_H
+#include "uci_config.h"
+
/*
* you can use these defines to enable debugging behavior for
* apps compiled against libuci:
*
*/
-#ifdef DEBUG_ALL
-#define UCI_DEBUG
-#define UCI_DEBUG_TYPECAST
-#endif
-
#include <stdbool.h>
#include <setjmp.h>
#include <stdio.h>
#define UCI_CONFDIR "/etc/config"
#define UCI_SAVEDIR "/tmp/.uci"
-#define UCI_FILEMODE 0600
+#define UCI_DIRMODE 0700
+#define UCI_FILEMODE 0600
enum
{
* If section is omitted, then a pointer to the config package is returned
* If option is omitted, then a pointer to the config section is returned
*/
-extern int uci_lookup(struct uci_context *ctx, struct uci_element **res, struct uci_package *package, char *section, char *option);
+extern int uci_lookup(struct uci_context *ctx, struct uci_element **res, struct uci_package *package, const char *section, const char *option);
/**
* uci_add_section: Add an unnamed section
/**
* uci_list_configs: List available uci config files
* @ctx: uci context
+ *
+ * caller is responsible for freeing the allocated memory behind list
*/
extern int uci_list_configs(struct uci_context *ctx, char ***list);
* @section: section name (optional)
* @option option name (optional)
*/
-extern int uci_revert(struct uci_context *ctx, struct uci_package **p, char *section, char *option);
+extern int uci_revert(struct uci_context *ctx, struct uci_package **p, const char *section, const char *option);
/**
* uci_parse_argument: parse a shell-style argument, with an arbitrary quoting style
*/
extern int uci_parse_argument(struct uci_context *ctx, FILE *stream, char **str, char **result);
+/**
+ * uci_set_backend: change the default backend
+ * @ctx: uci context
+ * @name: name of the backend
+ *
+ * The default backend is "file", which uses /etc/config for config storage
+ */
+extern int uci_set_backend(struct uci_context *ctx, const char *name);
+
/* UCI data structures */
enum uci_type {
UCI_TYPE_HISTORY = 0,
UCI_TYPE_PACKAGE = 1,
UCI_TYPE_SECTION = 2,
UCI_TYPE_OPTION = 3,
- UCI_TYPE_PATH = 4
+ UCI_TYPE_PATH = 4,
+ UCI_TYPE_BACKEND = 5,
};
enum uci_flags {
struct uci_backend
{
- const char *name;
+ struct uci_element e;
+ char **(*list_configs)(struct uci_context *ctx);
struct uci_package *(*load)(struct uci_context *ctx, const char *name);
void (*commit)(struct uci_context *ctx, struct uci_package **p, bool overwrite);
-};
+ /* private: */
+ const void *ptr;
+ void *priv;
+};
struct uci_context
{
/* backend for import and export */
struct uci_backend *backend;
+ struct uci_list backends;
/* uci runtime flags */
enum uci_flags flags;
struct uci_list history_path;
/* private: */
- int errno;
+ int err;
const char *func;
jmp_buf trap;
bool internal;
struct uci_element e;
struct uci_list sections;
struct uci_context *ctx;
- bool confdir;
+ bool has_history;
char *path;
/* private: */
struct uci_backend *backend;
+ void *priv;
int n_section;
struct uci_list history;
struct uci_list saved_history;
char *value;
};
+
/* linked list handling */
#ifndef offsetof
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
* @_type: config, section or option
* @_ptr: pointer to the uci_list struct
*/
-#define element_to(type, ptr) \
- container_of(ptr, struct uci_ ## type, e)
-
#define list_to_element(ptr) \
container_of(ptr, struct uci_element, list)
#define uci_list_empty(list) ((list)->next == (list))
/* wrappers for dynamic type handling */
+#define uci_type_backend UCI_TYPE_BACKEND
#define uci_type_history UCI_TYPE_HISTORY
#define uci_type_package UCI_TYPE_PACKAGE
#define uci_type_section UCI_TYPE_SECTION
/* element typecasting */
#ifdef UCI_DEBUG_TYPECAST
static const char *uci_typestr[] = {
+ [uci_type_backend] = "backend",
[uci_type_history] = "history",
[uci_type_package] = "package",
[uci_type_section] = "section",
return (struct uci_ ## _type *) e; \
}
+BUILD_CAST(backend)
BUILD_CAST(history)
BUILD_CAST(package)
BUILD_CAST(section)
BUILD_CAST(option)
#else
+#define uci_to_backend(ptr) container_of(ptr, struct uci_backend, e)
#define uci_to_history(ptr) container_of(ptr, struct uci_history, e)
#define uci_to_package(ptr) container_of(ptr, struct uci_package, e)
#define uci_to_section(ptr) container_of(ptr, struct uci_section, e)