X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fuci.git;a=blobdiff_plain;f=list.c;h=334bc324d7584f41f972431329ec6c9df573dd6d;hp=5561778b1c47b22c4ce297cc1048b34c625d8ce2;hb=01ca9e5e467e4f324f52fd80a2ec4db999b3db48;hpb=f0be94e4d8d2a0c8ab35b932e88170cc37cca4af

diff --git a/list.c b/list.c
index 5561778..334bc32 100644
--- a/list.c
+++ b/list.c
@@ -58,13 +58,18 @@ static struct uci_element *
 uci_alloc_generic(struct uci_context *ctx, int type, const char *name, int size)
 {
 	struct uci_element *e;
+	int datalen = size;
 	void *ptr;
 
-	ptr = uci_malloc(ctx, size + strlen(name) + 1);
+	if (name)
+		datalen += strlen(name) + 1;
+	ptr = uci_malloc(ctx, datalen);
 	e = (struct uci_element *) ptr;
 	e->type = type;
-	e->name = (char *) ptr + size;
-	strcpy(e->name, name);
+	if (name) {
+		e->name = (char *) ptr + size;
+		strcpy(e->name, name);
+	}
 	uci_list_init(&e->list);
 
 	return e;
@@ -97,6 +102,9 @@ uci_alloc_option(struct uci_section *s, const char *name, const char *value)
 static inline void
 uci_free_option(struct uci_option *o)
 {
+	if ((o->value != uci_dataptr(o)) &&
+		(o->value != NULL))
+		free(o->value);
 	uci_free_element(&o->e);
 }
 
@@ -130,9 +138,50 @@ uci_free_section(struct uci_section *s)
 	uci_foreach_element_safe(&s->options, tmp, o) {
 		uci_free_option(uci_to_option(o));
 	}
+	if ((s->type != uci_dataptr(s)) &&
+		(s->type != NULL))
+		free(s->type);
 	uci_free_element(&s->e);
 }
 
+/* record a change that was done to a package */
+static void
+uci_add_history(struct uci_context *ctx, struct uci_package *p, int cmd, char *section, char *option, char *value)
+{
+	struct uci_history *h;
+	int size = strlen(section) + 1;
+	char *ptr;
+
+	if (!p->confdir)
+		return;
+
+	if (value)
+		size += strlen(section) + 1;
+
+	h = uci_alloc_element(ctx, history, option, size);
+	ptr = uci_dataptr(h);
+	h->cmd = cmd;
+	h->section = strcpy(ptr, section);
+	if (value) {
+		ptr += strlen(ptr) + 1;
+		h->value = strcpy(ptr, value);
+	}
+	uci_list_add(&p->history, &h->e.list);
+}
+
+static void
+uci_free_history(struct uci_history *h)
+{
+	if (!h)
+		return;
+	if ((h->section != NULL) &&
+		(h->section != uci_dataptr(h))) {
+		free(h->section);
+		free(h->value);
+	}
+	uci_free_element(&h->e);
+}
+
 static struct uci_package *
 uci_alloc_package(struct uci_context *ctx, const char *name)
 {
@@ -153,28 +202,18 @@ uci_free_package(struct uci_package *p)
 	if(!p)
 		return;
 
+	if (p->path)
+		free(p->path);
 	uci_foreach_element_safe(&p->sections, tmp, e) {
 		uci_free_section(uci_to_section(e));
 	}
+	uci_foreach_element_safe(&p->history, tmp, e) {
+		uci_free_history(uci_to_history(e));
+	}
 	uci_free_element(&p->e);
 }
 
-/* record a change that was done to a package */
-static inline void
-uci_add_history(struct uci_context *ctx, struct uci_package *p, int cmd, char *section, char *option, char *value)
-{
-	struct uci_history *h = (struct uci_history *) uci_malloc(ctx, sizeof(struct uci_history));
-
-	uci_list_init(&h->list);
-	h->cmd = cmd;
-	h->section = section;
-	h->option = option;
-	h->value = value;
-	uci_list_add(&p->history, &h->list);
-}
-
-
-static struct uci_element *uci_lookup_list(struct uci_context *ctx, struct uci_list *list, char *name)
+static struct uci_element *uci_lookup_list(struct uci_context *ctx, struct uci_list *list, const char *name)
 {
 	struct uci_element *e;
 
@@ -182,43 +221,97 @@ static struct uci_element *uci_lookup_list(struct uci_context *ctx, struct uci_l
 		if (!strcmp(e->name, name))
 			return e;
 	}
-	UCI_THROW(ctx, UCI_ERR_NOTFOUND);
+	return NULL;
 }
 
-int uci_lookup(struct uci_context *ctx, struct uci_element **res, char *package, char *section, char *option)
+int uci_lookup(struct uci_context *ctx, struct uci_element **res, struct uci_package *p, char *section, char *option)
 {
 	struct uci_element *e;
-	struct uci_package *p;
 	struct uci_section *s;
 	struct uci_option *o;
 
 	UCI_HANDLE_ERR(ctx);
 	UCI_ASSERT(ctx, res != NULL);
-	UCI_ASSERT(ctx, package != NULL);
-
-	e = uci_lookup_list(ctx, &ctx->root, package);
-	if (!section)
-		goto found;
+	UCI_ASSERT(ctx, p != NULL);
+	UCI_ASSERT(ctx, section != NULL);
 
-	p = uci_to_package(e);
 	e = uci_lookup_list(ctx, &p->sections, section);
-	if (!option)
-		goto found;
+	if (!e)
+		goto notfound;
 
-	s = uci_to_section(e);
-	e = uci_lookup_list(ctx, &s->options, option);
+	if (option) {
+		s = uci_to_section(e);
+		e = uci_lookup_list(ctx, &s->options, option);
+	}
 
-found:
 	*res = e;
 	return 0;
+
+notfound:
+	UCI_THROW(ctx, UCI_ERR_NOTFOUND);
+	return 0;
+}
+
+int uci_del_element(struct uci_context *ctx, struct uci_element *e)
+{
+	/* NB: UCI_INTERNAL use means without history tracking */
+	bool internal = ctx->internal;
+	struct uci_package *p = NULL;
+	struct uci_section *s = NULL;
+	struct uci_option *o = NULL;
+	struct uci_element *i, *tmp;
+	char *option = NULL;
+
+	UCI_HANDLE_ERR(ctx);
+	UCI_ASSERT(ctx, e != NULL);
+
+	switch(e->type) {
+	case UCI_TYPE_SECTION:
+		s = uci_to_section(e);
+		uci_foreach_element_safe(&s->options, tmp, i) {
+			uci_del_element(ctx, i);
+		}
+		break;
+	case UCI_TYPE_OPTION:
+		o = uci_to_option(e);
+		s = o->section;
+		p = s->package;
+		option = e->name;
+		break;
+	default:
+		UCI_THROW(ctx, UCI_ERR_INVAL);
+		break;
+	}
+
+	p = s->package;
+	if (!internal)
+		uci_add_history(ctx, p, UCI_CMD_REMOVE, s->e.name, option, NULL);
+
+	switch(e->type) {
+	case UCI_TYPE_SECTION:
+		uci_free_section(s);
+		break;
+	case UCI_TYPE_OPTION:
+		uci_free_option(o);
+		break;
+	default:
+		break;
+	}
+	return 0;
 }
 
 int uci_set_element_value(struct uci_context *ctx, struct uci_element **element, char *value)
 {
-	int size;
-	char *str;
+	/* NB: UCI_INTERNAL use means without history tracking */
+	bool internal = ctx->internal;
 	struct uci_list *list;
 	struct uci_element *e;
+	struct uci_package *p;
+	struct uci_section *s;
+	char *section;
+	char *option;
+	char *str;
+	int size;
 
 	UCI_HANDLE_ERR(ctx);
 	UCI_ASSERT(ctx, value != NULL);
@@ -239,14 +332,23 @@ int uci_set_element_value(struct uci_context *ctx, struct uci_element **element,
 	switch(e->type) {
 	case UCI_TYPE_SECTION:
 		size = sizeof(struct uci_section);
+		s = uci_to_section(e);
+		section = e->name;
+		option = NULL;
 		break;
 	case UCI_TYPE_OPTION:
 		size = sizeof(struct uci_option);
+		s = uci_to_option(e)->section;
+		section = s->e.name;
+		option = e->name;
 		break;
 	default:
 		UCI_THROW(ctx, UCI_ERR_INVAL);
-		break;
+		return 0;
 	}
+	p = s->package;
+	if (!internal)
+		uci_add_history(ctx, p, UCI_CMD_CHANGE, section, option, value);
 
 	uci_list_del(&e->list);
 	e = uci_realloc(ctx, e, size);
@@ -256,10 +358,10 @@ int uci_set_element_value(struct uci_context *ctx, struct uci_element **element,
 
 	switch(e->type) {
 	case UCI_TYPE_SECTION:
-		uci_to_section(e)->type = value;
+		uci_to_section(e)->type = str;
 		break;
 	case UCI_TYPE_OPTION:
-		uci_to_option(e)->value = value;
+		uci_to_option(e)->value = str;
 		break;
 	default:
 		break;
@@ -268,43 +370,54 @@ int uci_set_element_value(struct uci_context *ctx, struct uci_element **element,
 	return 0;
 }
 
-int uci_set(struct uci_context *ctx, char *package, char *section, char *option, char *value)
+int uci_del(struct uci_context *ctx, struct uci_package *p, char *section, char *option)
 {
+	/* NB: pass on internal flag to uci_del_element */
+	bool internal = ctx->internal;
 	struct uci_element *e;
-	struct uci_package *p = NULL;
 	struct uci_section *s = NULL;
 	struct uci_option *o = NULL;
-	struct uci_history *h;
 
 	UCI_HANDLE_ERR(ctx);
-	UCI_ASSERT(ctx, package != NULL);
+	UCI_ASSERT(ctx, p != NULL);
 	UCI_ASSERT(ctx, section != NULL);
 
-	fprintf(stderr, "uci_set: '%s' '%s' '%s' = '%s'\n", package, section, option, value);
+	UCI_INTERNAL(uci_lookup, ctx, &e, p, section, option);
+
+	if (!internal)
+		return uci_del_element(ctx, e);
+	UCI_INTERNAL(uci_del_element, ctx, e);
+
+	return 0;
+}
+
+int uci_set(struct uci_context *ctx, struct uci_package *p, char *section, char *option, char *value)
+{
+	/* NB: UCI_INTERNAL use means without history tracking */
+	bool internal = ctx->internal;
+	struct uci_element *e = NULL;
+	struct uci_section *s = NULL;
+	struct uci_option *o = NULL;
+	struct uci_history *h;
+
+	UCI_HANDLE_ERR(ctx);
+	UCI_ASSERT(ctx, p != NULL);
+	UCI_ASSERT(ctx, section != NULL);
+	UCI_ASSERT(ctx, value != NULL);
 
 	/*
 	 * look up the package, section and option (if set)
 	 * if the section/option is to be modified and it is not found
 	 * create a new element in the appropriate list
 	 */
-	UCI_TRAP_SAVE(ctx, notfound);
-	e = uci_lookup_list(ctx, &ctx->root, package);
-	if (!e)
-		goto notfound;
-
-	p = uci_to_package(e);
-	e = uci_lookup_list(ctx, &p->sections, section);
-	if (!e)
-		goto notfound;
+	UCI_INTERNAL(uci_lookup, ctx, &e, p, section, NULL);
 	s = uci_to_section(e);
-
 	if (option) {
 		e = uci_lookup_list(ctx, &s->options, option);
 		if (!e)
 			goto notfound;
 		o = uci_to_option(e);
 	}
-	UCI_TRAP_RESTORE(ctx);
 
 	/* 
 	 * no unknown element was supplied, assume that we can just update 
@@ -315,8 +428,11 @@ int uci_set(struct uci_context *ctx, char *package, char *section, char *option,
 	else
 		e = &s->e;
 
-	uci_add_history(ctx, p, UCI_CMD_CHANGE, section, option, value);
-	return uci_set_element_value(ctx, &e, value);
+	if (!internal)
+		return uci_set_element_value(ctx, &e, value);
+
+	UCI_INTERNAL(uci_set_element_value, ctx, &e, value);
+	return 0;
 
 notfound:
 	/* 
@@ -326,34 +442,27 @@ notfound:
 	 * an option was supplied, but the section wasn't found
 	 */
 	if (!p || (!s && option))
-		UCI_THROW(ctx, ctx->errno);
+		UCI_THROW(ctx, UCI_ERR_NOTFOUND);
 
 	/* now add the missing entry */
-	uci_add_history(ctx, p, UCI_CMD_ADD, section, option, value);
+	if (!internal)
+		uci_add_history(ctx, p, UCI_CMD_ADD, section, option, value);
 	if (s)
 		uci_alloc_option(s, option, value);
 	else
-		uci_alloc_section(p, section, value);
+		uci_alloc_section(p, value, section);
 
 	return 0;
 }
 
-int uci_unload(struct uci_context *ctx, const char *name)
+int uci_unload(struct uci_context *ctx, struct uci_package *p)
 {
 	struct uci_element *e;
 
 	UCI_HANDLE_ERR(ctx);
-	UCI_ASSERT(ctx, name != NULL);
-
-	uci_foreach_element(&ctx->root, e) {
-		if (!strcmp(e->name, name))
-			goto found;
-	}
-	UCI_THROW(ctx, UCI_ERR_NOTFOUND);
-
-found:
-	uci_free_package(uci_to_package(e));
+	UCI_ASSERT(ctx, p != NULL);
 
+	uci_free_package(p);
 	return 0;
 }