X-Git-Url: https://git.archive.openwrt.org/?p=project%2Fuci.git;a=blobdiff_plain;f=list.c;h=f4ab8ec148d82ad1e8638a1235eb1625e2c718f0;hp=43b58f4a1ae3d145652aa645faad1e0dc86c43ea;hb=143aee566ef51011e45f66e2a18c8361270ac31f;hpb=4535c379ced2bdb6a4b414f71080fa0c6f5180aa

diff --git a/list.c b/list.c
index 43b58f4..f4ab8ec 100644
--- a/list.c
+++ b/list.c
@@ -12,3 +12,177 @@
  * GNU General Public License for more details.
  */
 
+#include <glob.h>
+
+/* 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 between two consecutive entries */
+static inline void __uci_list_add(struct uci_list *prev, struct uci_list *next, struct uci_list *ptr)
+{
+	prev->next = ptr;
+	next->prev = ptr;
+	ptr->prev = prev;
+	ptr->next = next;
+}
+
+/* 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_add(head->prev, head, 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;
+}
+
+static void uci_drop_option(struct uci_option *option)
+{
+	if (!option)
+		return;
+	if (option->name)
+		free(option->name);
+	if (option->value)
+		free(option->value);
+	free(option);
+}
+
+static struct uci_option *uci_add_option(struct uci_section *section, const char *name, const char *value)
+{
+	struct uci_config *cfg = section->config;
+	struct uci_context *ctx = cfg->ctx;
+	struct uci_option *option = NULL;
+
+	UCI_TRAP_SAVE(ctx, error);
+	option = (struct uci_option *) uci_malloc(ctx, sizeof(struct uci_option));
+	option->name = uci_strdup(ctx, name);
+	option->value = uci_strdup(ctx, value);
+	uci_list_add(&section->options, &option->list);
+	UCI_TRAP_RESTORE(ctx);
+
+error:
+	uci_drop_option(option);
+	UCI_THROW(ctx, ctx->errno);
+	return NULL;
+}
+
+static void uci_drop_section(struct uci_section *section)
+{
+	struct uci_option *opt;
+
+	if (!section)
+		return;
+
+	uci_foreach_entry(option, &section->options, opt) {
+		uci_list_del(&opt->list);
+		uci_drop_option(opt);
+	}
+
+	if (section->name)
+		free(section->name);
+	if (section->type)
+		free(section->type);
+	free(section);
+}
+
+static struct uci_section *uci_add_section(struct uci_config *cfg, const char *type, const char *name)
+{
+	struct uci_section *section = NULL;
+	struct uci_context *ctx = cfg->ctx;
+
+	UCI_TRAP_SAVE(ctx, error);
+	section = (struct uci_section *) uci_malloc(ctx, sizeof(struct uci_section));
+	section->config = cfg;
+	uci_list_init(&section->list);
+	uci_list_init(&section->options);
+	section->type = uci_strdup(ctx, type);
+	if (name)
+		section->name = uci_strdup(ctx, name);
+	uci_list_add(&cfg->sections, &section->list);
+	UCI_TRAP_RESTORE(ctx);
+
+	return section;
+
+error:
+	uci_drop_section(section);
+	UCI_THROW(ctx, ctx->errno);
+	return NULL;
+}
+
+static void uci_drop_file(struct uci_config *cfg)
+{
+	struct uci_section *s;
+
+	if(!cfg)
+		return;
+
+	uci_foreach_entry(section, &cfg->sections, s) {
+		uci_list_del(&s->list);
+		uci_drop_section(s);
+	}
+
+	if (cfg->name)
+		free(cfg->name);
+	free(cfg);
+}
+
+
+static struct uci_config *uci_alloc_file(struct uci_context *ctx, const char *name)
+{
+	struct uci_config *cfg = NULL;
+
+	UCI_TRAP_SAVE(ctx, error);
+	cfg = (struct uci_config *) uci_malloc(ctx, sizeof(struct uci_config));
+	uci_list_init(&cfg->list);
+	uci_list_init(&cfg->sections);
+	cfg->name = uci_strdup(ctx, name);
+	cfg->ctx = ctx;
+	UCI_TRAP_RESTORE(ctx);
+	return cfg;
+
+error:
+	uci_drop_file(cfg);
+	UCI_THROW(ctx, ctx->errno);
+	return NULL;
+}
+
+char **uci_list_configs(struct uci_context *ctx)
+{
+	char **configs;
+	glob_t globbuf;
+	int size, i;
+	char *buf;
+
+	if (glob(UCI_CONFDIR "/*", GLOB_MARK, NULL, &globbuf) != 0)
+		return NULL;
+
+	size = sizeof(char *) * (globbuf.gl_pathc + 1);
+	for(i = 0; i < globbuf.gl_pathc; i++)
+		size += strlen(globbuf.gl_pathv[i]) + 1;
+
+	configs = malloc(size);
+	if (!configs)
+		return NULL;
+
+	memset(configs, 0, size);
+	buf = (char *) &configs[globbuf.gl_pathc + 1];
+	for(i = 0; i < globbuf.gl_pathc; i++) {
+		configs[i] = buf;
+		strcpy(buf, globbuf.gl_pathv[i]);
+		buf += strlen(buf) + 1;
+	}
+	return configs;
+}
+