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.
17 /* initialize a list head/item */
18 static inline void uci_list_init(struct uci_list *ptr)
24 /* inserts a new list entry between two consecutive entries */
25 static inline void __uci_list_add(struct uci_list *prev, struct uci_list *next, struct uci_list *ptr)
33 /* inserts a new list entry at the tail of the list */
34 static inline void uci_list_add(struct uci_list *head, struct uci_list *ptr)
36 /* NB: head->prev points at the tail */
37 __uci_list_add(head->prev, head, ptr);
40 static inline void uci_list_del(struct uci_list *ptr)
42 struct uci_list *next, *prev;
51 static void uci_drop_option(struct uci_option *option)
62 static struct uci_option *uci_add_option(struct uci_section *section, const char *name, const char *value)
64 struct uci_config *cfg = section->config;
65 struct uci_context *ctx = cfg->ctx;
66 struct uci_option *option = NULL;
68 UCI_TRAP_SAVE(ctx, error);
69 option = (struct uci_option *) uci_malloc(ctx, sizeof(struct uci_option));
70 option->name = uci_strdup(ctx, name);
71 option->value = uci_strdup(ctx, value);
72 uci_list_add(§ion->options, &option->list);
73 UCI_TRAP_RESTORE(ctx);
76 uci_drop_option(option);
77 UCI_THROW(ctx, ctx->errno);
81 static void uci_drop_section(struct uci_section *section)
83 struct uci_option *opt;
88 uci_foreach_entry(option, §ion->options, opt) {
89 uci_list_del(&opt->list);
100 static struct uci_section *uci_add_section(struct uci_config *cfg, const char *type, const char *name)
102 struct uci_section *section = NULL;
103 struct uci_context *ctx = cfg->ctx;
105 UCI_TRAP_SAVE(ctx, error);
106 section = (struct uci_section *) uci_malloc(ctx, sizeof(struct uci_section));
107 section->config = cfg;
108 uci_list_init(§ion->list);
109 uci_list_init(§ion->options);
110 section->type = uci_strdup(ctx, type);
112 section->name = uci_strdup(ctx, name);
113 uci_list_add(&cfg->sections, §ion->list);
114 UCI_TRAP_RESTORE(ctx);
119 uci_drop_section(section);
120 UCI_THROW(ctx, ctx->errno);
124 static void uci_drop_config(struct uci_config *cfg)
126 struct uci_section *s;
131 uci_foreach_entry(section, &cfg->sections, s) {
132 uci_list_del(&s->list);
142 static struct uci_config *uci_alloc_config(struct uci_context *ctx, const char *name)
144 struct uci_config *cfg = NULL;
146 UCI_TRAP_SAVE(ctx, error);
147 cfg = (struct uci_config *) uci_malloc(ctx, sizeof(struct uci_config));
148 uci_list_init(&cfg->list);
149 uci_list_init(&cfg->sections);
150 cfg->name = uci_strdup(ctx, name);
152 UCI_TRAP_RESTORE(ctx);
156 uci_drop_config(cfg);
157 UCI_THROW(ctx, ctx->errno);
161 int uci_unload(struct uci_context *ctx, const char *name)
163 struct uci_config *cfg;
166 UCI_ASSERT(ctx, name != NULL);
168 uci_foreach_entry(config, &ctx->root, cfg) {
169 if (!strcmp(cfg->name, name))
172 UCI_THROW(ctx, UCI_ERR_NOTFOUND);
175 uci_list_del(&cfg->list);
176 uci_drop_config(cfg);
181 char **uci_list_configs(struct uci_context *ctx)
188 if (glob(UCI_CONFDIR "/*", GLOB_MARK, NULL, &globbuf) != 0)
191 size = sizeof(char *) * (globbuf.gl_pathc + 1);
192 for(i = 0; i < globbuf.gl_pathc; i++)
193 size += strlen(globbuf.gl_pathv[i]) + 1;
195 configs = malloc(size);
199 memset(configs, 0, size);
200 buf = (char *) &configs[globbuf.gl_pathc + 1];
201 for(i = 0; i < globbuf.gl_pathc; i++) {
203 strcpy(buf, globbuf.gl_pathv[i]);
204 buf += strlen(buf) + 1;