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",
46 /* exported functions */
47 struct uci_context
*uci_alloc_context(void)
49 struct uci_context
*ctx
;
51 ctx
= (struct uci_context
*) malloc(sizeof(struct uci_context
));
52 memset(ctx
, 0, sizeof(struct uci_context
));
53 uci_list_init(&ctx
->root
);
54 uci_list_init(&ctx
->history_path
);
55 ctx
->flags
= UCI_FLAG_STRICT
;
57 ctx
->confdir
= (char *) uci_confdir
;
58 ctx
->savedir
= (char *) uci_savedir
;
63 void uci_free_context(struct uci_context
*ctx
)
65 struct uci_element
*e
, *tmp
;
67 if (ctx
->confdir
!= uci_confdir
)
69 if (ctx
->savedir
!= uci_savedir
)
72 UCI_TRAP_SAVE(ctx
, ignore
);
74 uci_foreach_element_safe(&ctx
->root
, tmp
, e
) {
75 struct uci_package
*p
= uci_to_package(e
);
78 uci_foreach_element_safe(&ctx
->history_path
, tmp
, e
) {
82 UCI_TRAP_RESTORE(ctx
);
88 int uci_add_history_path(struct uci_context
*ctx
, const char *dir
)
90 struct uci_element
*e
;
93 UCI_ASSERT(ctx
, dir
!= NULL
);
94 e
= uci_alloc_generic(ctx
, UCI_TYPE_PATH
, dir
, sizeof(struct uci_element
));
95 uci_list_add(&ctx
->history_path
, &e
->list
);
100 int uci_set_confdir(struct uci_context
*ctx
, const char *dir
)
105 UCI_ASSERT(ctx
, dir
!= NULL
);
107 cdir
= uci_strdup(ctx
, dir
);
108 if (ctx
->confdir
!= uci_confdir
)
114 int uci_set_savedir(struct uci_context
*ctx
, const char *dir
)
119 UCI_ASSERT(ctx
, dir
!= NULL
);
121 sdir
= uci_strdup(ctx
, dir
);
122 if (ctx
->savedir
!= uci_savedir
)
128 int uci_cleanup(struct uci_context
*ctx
)
131 uci_file_cleanup(ctx
);
135 void uci_perror(struct uci_context
*ctx
, const char *prefix
)
144 if ((err
< 0) || (err
>= UCI_ERR_LAST
))
145 err
= UCI_ERR_UNKNOWN
;
148 fprintf(stderr
, "%s: ", prefix
);
150 fprintf(stderr
, "%s: ", ctx
->func
);
155 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
);
160 fprintf(stderr
, "%s\n", uci_errstr
[err
]);