* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * GNU Lesser General Public License for more details.
*/
#ifndef __UCI_INTERNAL_H
#define __UCI_INTERNAL_H
+#define __private __attribute__((visibility("hidden")))
+#define __public
+
struct uci_parse_context
{
/* error context */
int bufsz;
};
-int uci_add_backend(struct uci_context *ctx, struct uci_backend *b);
-void uci_add_history(struct uci_context *ctx, struct uci_list *list, int cmd, char *section, char *option, char *value);
-void uci_free_history(struct uci_history *h);
+extern const char *uci_confdir;
+extern const char *uci_savedir;
+
+__private void *uci_malloc(struct uci_context *ctx, size_t size);
+__private void *uci_realloc(struct uci_context *ctx, void *ptr, size_t size);
+__private char *uci_strdup(struct uci_context *ctx, const char *str);
+__private bool uci_validate_str(const char *str, bool name);
+__private void uci_add_delta(struct uci_context *ctx, struct uci_list *list, int cmd, const char *section, const char *option, const char *value);
+__private void uci_free_delta(struct uci_delta *h);
+__private struct uci_package *uci_alloc_package(struct uci_context *ctx, const char *name);
+
+__private FILE *uci_open_stream(struct uci_context *ctx, const char *filename, int pos, bool write, bool create);
+__private void uci_close_stream(FILE *stream);
+__private void uci_getln(struct uci_context *ctx, int offset);
+
+__private void uci_parse_error(struct uci_context *ctx, char *pos, char *reason);
+__private void uci_alloc_parse_context(struct uci_context *ctx);
+
+__private void uci_cleanup(struct uci_context *ctx);
+__private struct uci_element *uci_lookup_list(struct uci_list *list, const char *name);
+__private void uci_fixup_section(struct uci_context *ctx, struct uci_section *s);
+__private void uci_free_package(struct uci_package **package);
+__private struct uci_element *uci_alloc_generic(struct uci_context *ctx, int type, const char *name, int size);
+__private void uci_free_element(struct uci_element *e);
+__private struct uci_element *uci_expand_ptr(struct uci_context *ctx, struct uci_ptr *ptr, bool complete);
+
+__private int uci_load_delta(struct uci_context *ctx, struct uci_package *p, bool flush);
+
+static inline bool uci_validate_package(const char *str)
+{
+ return uci_validate_str(str, false);
+}
+
+static inline bool uci_validate_type(const char *str)
+{
+ return uci_validate_str(str, false);
+}
+
+static inline bool uci_validate_name(const char *str)
+{
+ return uci_validate_str(str, true);
+}
+
+/* initialize a list head/item */
+static inline void uci_list_init(struct uci_list *ptr)
+{
+ ptr->prev = ptr;
+ ptr->next = ptr;
+}
+
+/* inserts a new list entry after a given entry */
+static inline void uci_list_insert(struct uci_list *list, struct uci_list *ptr)
+{
+ list->next->prev = ptr;
+ ptr->prev = list;
+ ptr->next = list->next;
+ list->next = ptr;
+}
+
+/* inserts a new list entry at the tail of the list */
+static inline void uci_list_add(struct uci_list *head, struct uci_list *ptr)
+{
+ /* NB: head->prev points at the tail */
+ uci_list_insert(head->prev, ptr);
+}
+
+static inline void uci_list_del(struct uci_list *ptr)
+{
+ struct uci_list *next, *prev;
+
+ next = ptr->next;
+ prev = ptr->prev;
+
+ prev->next = next;
+ next->prev = prev;
+
+ uci_list_init(ptr);
+}
+
+
+extern struct uci_backend uci_file_backend;
+
+#ifdef UCI_PLUGIN_SUPPORT
+/**
+ * uci_add_backend: add an extra backend
+ * @ctx: uci context
+ * @name: name of the backend
+ *
+ * The default backend is "file", which uses /etc/config for config storage
+ */
+__private int uci_add_backend(struct uci_context *ctx, struct uci_backend *b);
+
+/**
+ * uci_add_backend: add an extra backend
+ * @ctx: uci context
+ * @name: name of the backend
+ *
+ * The default backend is "file", which uses /etc/config for config storage
+ */
+__private int uci_del_backend(struct uci_context *ctx, struct uci_backend *b);
+#endif
+
+#define UCI_BACKEND(_var, _name, ...) \
+struct uci_backend _var = { \
+ .e.list = { \
+ .next = &_var.e.list, \
+ .prev = &_var.e.list, \
+ }, \
+ .e.name = _name, \
+ .e.type = UCI_TYPE_BACKEND, \
+ .ptr = &_var, \
+ __VA_ARGS__ \
+}
+
/*
* functions for debug and error handling, for internal use only
#define DPRINTF(...)
#endif
-/*
+/*
* throw an uci exception and store the error number
* in the context.
*/
#define UCI_HANDLE_ERR(ctx) do { \
DPRINTF("ENTER: %s\n", __func__); \
int __val = 0; \
- ctx->errno = 0; \
if (!ctx) \
return UCI_ERR_INVAL; \
- if (!ctx->internal) \
+ ctx->err = 0; \
+ if (!ctx->internal && !ctx->nested) \
__val = setjmp(ctx->trap); \
ctx->internal = false; \
+ ctx->nested = false; \
if (__val) { \
DPRINTF("LEAVE: %s, ret=%d\n", __func__, __val); \
- ctx->errno = __val; \
+ ctx->err = __val; \
return __val; \
} \
} while (0)
memcpy(__old_trap, ctx->trap, sizeof(ctx->trap)); \
__val = setjmp(ctx->trap); \
if (__val) { \
- ctx->errno = __val; \
+ ctx->err = __val; \
memcpy(ctx->trap, __old_trap, sizeof(ctx->trap)); \
goto handler; \
}
/**
* UCI_INTERNAL: Do an internal call of a public API function
- *
+ *
* Sets Exception handling to passthrough mode.
* Allows API functions to change behavior compared to public use
*/
func(ctx, __VA_ARGS__); \
} while (0)
+/**
+ * UCI_NESTED: Do an normal nested call of a public API function
+ *
+ * Sets Exception handling to passthrough mode.
+ * Allows API functions to change behavior compared to public use
+ */
+#define UCI_NESTED(func, ctx, ...) do { \
+ ctx->nested = true; \
+ func(ctx, __VA_ARGS__); \
+} while (0)
+
+
/*
* check the specified condition.
* throw an invalid argument exception if it's false
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