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;
53 static struct uci_element *
54 uci_alloc_generic(struct uci_context *ctx, const char *name, int size)
56 struct uci_element *e;
59 ptr = uci_malloc(ctx, size + strlen(name) + 1);
60 e = (struct uci_element *) ptr;
61 e->name = (char *) ptr + size;
62 strcpy(e->name, name);
63 uci_list_init(&e->list);
69 uci_free_element(struct uci_element *e)
74 if (!uci_list_empty(&e->list))
75 uci_list_del(&e->list);
79 static struct uci_option *
80 uci_alloc_option(struct uci_section *s, const char *name, const char *value)
82 struct uci_package *p = s->package;
83 struct uci_context *ctx = p->ctx;
86 o = uci_alloc_element(ctx, option, name, strlen(value) + 1);
87 o->value = uci_dataptr(o);
89 strcpy(o->value, value);
90 uci_list_add(&s->options, &o->e.list);
96 uci_free_option(struct uci_option *o)
98 uci_free_element(&o->e);
101 static struct uci_section *
102 uci_alloc_section(struct uci_package *p, const char *type, const char *name)
104 struct uci_context *ctx = p->ctx;
105 struct uci_section *s;
108 if (!name || !name[0]) {
109 snprintf(buf, 16, "cfg%d", p->n_section);
113 s = uci_alloc_element(ctx, section, name, strlen(type) + 1);
114 s->type = uci_dataptr(s);
116 strcpy(s->type, type);
117 uci_list_init(&s->options);
118 uci_list_add(&p->sections, &s->e.list);
124 uci_free_section(struct uci_section *s)
126 struct uci_element *o, *tmp;
128 uci_foreach_element_safe(&s->options, tmp, o) {
129 uci_free_option(uci_to_option(o));
131 uci_free_element(&s->e);
134 static struct uci_package *
135 uci_alloc_package(struct uci_context *ctx, const char *name)
137 struct uci_package *p;
139 p = uci_alloc_element(ctx, package, name, 0);
141 uci_list_init(&p->sections);
146 uci_free_package(struct uci_package *p)
148 struct uci_element *e, *tmp;
153 uci_foreach_element_safe(&p->sections, tmp, e) {
154 uci_free_section(uci_to_section(e));
156 uci_free_element(&p->e);
160 int uci_unload(struct uci_context *ctx, const char *name)
162 struct uci_element *e;
165 UCI_ASSERT(ctx, name != NULL);
167 uci_foreach_element(&ctx->root, e) {
168 if (!strcmp(e->name, name))
171 UCI_THROW(ctx, UCI_ERR_NOTFOUND);
174 uci_free_package(uci_to_package(e));
179 static inline char *get_filename(char *path)
183 p = strrchr(path, '/');
190 char **uci_list_configs(struct uci_context *ctx)
197 if (glob(UCI_CONFDIR "/*", GLOB_MARK, NULL, &globbuf) != 0)
200 size = sizeof(char *) * (globbuf.gl_pathc + 1);
201 for(i = 0; i < globbuf.gl_pathc; i++) {
204 p = get_filename(globbuf.gl_pathv[i]);
208 size += strlen(p) + 1;
211 configs = malloc(size);
215 memset(configs, 0, size);
216 buf = (char *) &configs[globbuf.gl_pathc + 1];
217 for(i = 0; i < globbuf.gl_pathc; i++) {
220 p = get_filename(globbuf.gl_pathv[i]);
226 buf += strlen(buf) + 1;