2 * libuci - Library for the Unified Configuration Interface
3 * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
5 * this program is free software; you can redistribute it and/or modify
6 * it under the terms of the gnu lesser general public license version 2.1
7 * as published by the free software foundation
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
15 /* initialize a list head/item */
16 static inline void uci_list_init(struct uci_list *ptr)
22 /* inserts a new list entry between two consecutive entries */
23 static inline void __uci_list_add(struct uci_list *prev, struct uci_list *next, struct uci_list *ptr)
31 /* inserts a new list entry at the tail of the list */
32 static inline void uci_list_add(struct uci_list *head, struct uci_list *ptr)
34 /* NB: head->prev points at the tail */
35 __uci_list_add(head->prev, head, ptr);
38 static inline void uci_list_del(struct uci_list *ptr)
40 struct uci_list *next, *prev;
49 static void uci_drop_option(struct uci_option *option)
60 static struct uci_option *uci_add_option(struct uci_section *section, const char *name, const char *value)
62 struct uci_config *cfg = section->config;
63 struct uci_context *ctx = cfg->ctx;
64 struct uci_option *option = NULL;
66 UCI_TRAP_SAVE(ctx, error);
67 option = (struct uci_option *) uci_malloc(ctx, sizeof(struct uci_option));
68 option->name = uci_strdup(ctx, name);
69 option->value = uci_strdup(ctx, value);
70 uci_list_add(§ion->options, &option->list);
71 UCI_TRAP_RESTORE(ctx);
74 uci_drop_option(option);
75 UCI_THROW(ctx, ctx->errno);
79 static void uci_drop_section(struct uci_section *section)
81 struct uci_option *opt;
86 uci_foreach_entry(option, §ion->options, opt) {
87 uci_list_del(&opt->list);
98 static struct uci_section *uci_add_section(struct uci_config *cfg, const char *type, const char *name)
100 struct uci_section *section = NULL;
101 struct uci_context *ctx = cfg->ctx;
103 UCI_TRAP_SAVE(ctx, error);
104 section = (struct uci_section *) uci_malloc(ctx, sizeof(struct uci_section));
105 section->config = cfg;
106 uci_list_init(§ion->list);
107 uci_list_init(§ion->options);
108 section->type = uci_strdup(ctx, type);
110 section->name = uci_strdup(ctx, name);
111 uci_list_add(&cfg->sections, §ion->list);
112 UCI_TRAP_RESTORE(ctx);
117 uci_drop_section(section);
118 UCI_THROW(ctx, ctx->errno);
122 static void uci_drop_file(struct uci_config *cfg)
124 struct uci_section *s;
129 uci_foreach_entry(section, &cfg->sections, s) {
130 uci_list_del(&s->list);
140 static struct uci_config *uci_alloc_file(struct uci_context *ctx, const char *name)
142 struct uci_config *cfg = NULL;
144 UCI_TRAP_SAVE(ctx, error);
145 cfg = (struct uci_config *) uci_malloc(ctx, sizeof(struct uci_config));
146 uci_list_init(&cfg->list);
147 uci_list_init(&cfg->sections);
148 cfg->name = uci_strdup(ctx, name);
150 UCI_TRAP_RESTORE(ctx);
155 UCI_THROW(ctx, ctx->errno);