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.
16 * This file contains some common code for the uci library
20 #include <sys/types.h>
28 static const char *uci_confdir = UCI_CONFDIR;
29 static const char *uci_savedir = UCI_SAVEDIR;
31 static const char *uci_errstr[] = {
33 [UCI_ERR_MEM] = "Out of memory",
34 [UCI_ERR_INVAL] = "Invalid argument",
35 [UCI_ERR_NOTFOUND] = "Entry not found",
36 [UCI_ERR_IO] = "I/O error",
37 [UCI_ERR_PARSE] = "Parse error",
38 [UCI_ERR_DUPLICATE] = "Duplicate entry",
39 [UCI_ERR_UNKNOWN] = "Unknown error",
42 static void uci_cleanup(struct uci_context *ctx);
44 #include "uci_internal.h"
50 /* exported functions */
51 struct uci_context *uci_alloc_context(void)
53 struct uci_context *ctx;
55 ctx = (struct uci_context *) malloc(sizeof(struct uci_context));
56 memset(ctx, 0, sizeof(struct uci_context));
57 uci_list_init(&ctx->root);
58 uci_list_init(&ctx->history_path);
59 ctx->flags = UCI_FLAG_STRICT;
61 ctx->confdir = (char *) uci_confdir;
62 ctx->savedir = (char *) uci_savedir;
63 ctx->backend = &uci_file_backend;
68 void uci_free_context(struct uci_context *ctx)
70 struct uci_element *e, *tmp;
72 if (ctx->confdir != uci_confdir)
74 if (ctx->savedir != uci_savedir)
78 UCI_TRAP_SAVE(ctx, ignore);
79 uci_foreach_element_safe(&ctx->root, tmp, e) {
80 struct uci_package *p = uci_to_package(e);
83 uci_foreach_element_safe(&ctx->history_path, tmp, e) {
87 UCI_TRAP_RESTORE(ctx);
93 int uci_set_confdir(struct uci_context *ctx, const char *dir)
98 UCI_ASSERT(ctx, dir != NULL);
100 cdir = uci_strdup(ctx, dir);
101 if (ctx->confdir != uci_confdir)
107 static void uci_cleanup(struct uci_context *ctx)
109 struct uci_parse_context *pctx;
123 uci_free_package(&pctx->package);
131 void uci_perror(struct uci_context *ctx, const char *prefix)
140 if ((err < 0) || (err >= UCI_ERR_LAST))
141 err = UCI_ERR_UNKNOWN;
144 fprintf(stderr, "%s: ", prefix);
146 fprintf(stderr, "%s: ", ctx->func);
151 fprintf(stderr, "%s (%s) at line %d, byte %d\n", uci_errstr[err], (ctx->pctx->reason ? ctx->pctx->reason : "unknown"), ctx->pctx->line, ctx->pctx->byte);
156 fprintf(stderr, "%s\n", uci_errstr[err]);
161 int uci_commit(struct uci_context *ctx, struct uci_package **package, bool overwrite)
164 UCI_ASSERT(ctx, package != NULL);
165 UCI_ASSERT(ctx, *package != NULL);
166 UCI_ASSERT(ctx, ctx->backend && ctx->backend->commit);
167 ctx->backend->commit(ctx, package, overwrite);
171 int uci_load(struct uci_context *ctx, const char *name, struct uci_package **package)
173 struct uci_package *p;
175 UCI_ASSERT(ctx, ctx->backend && ctx->backend->load);
176 p = ctx->backend->load(ctx, name);