keep unnamed sections unnamed on export
[project/uci.git] / cli.c
1 /*
2 * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2
6 * as published by the Free Software Foundation
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 */
13 #include <strings.h>
14 #include <stdlib.h>
15 #include <unistd.h>
16 #include "uci.h"
17
18 static const char *appname = "uci";
19
20 static struct uci_context *ctx;
21 enum {
22 /* section cmds */
23 CMD_GET = 1,
24 CMD_SET = 2,
25 CMD_DEL = 3,
26 /* package cmds */
27 CMD_SHOW = 4,
28 CMD_EXPORT = 5,
29 CMD_COMMIT = 6,
30 };
31
32 static void uci_usage(int argc, char **argv)
33 {
34 fprintf(stderr,
35 "Usage: %s [<options>] <command> [<arguments>]\n\n"
36 "Commands:\n"
37 "\texport [<config>]\n"
38 "\tshow [<config>[.<section>[.<option>]]]\n"
39 "\tget <config>.<section>[.<option>]\n"
40 "\tset <config>.<section>[.<option>]=<value>\n"
41 "\n"
42 "Options:\n"
43 "\t-s force strict mode (stop on parser errors)\n"
44 "\t-S disable strict mode\n"
45 "\n",
46 argv[0]
47 );
48 exit(255);
49 }
50
51 static void uci_show_section(struct uci_section *p)
52 {
53 struct uci_element *e;
54 const char *cname, *sname;
55
56 cname = p->package->e.name;
57 sname = p->e.name;
58 printf("%s.%s=%s\n", cname, sname, p->type);
59 uci_foreach_element(&p->options, e) {
60 printf("%s.%s.%s=%s\n", cname, sname, e->name, uci_to_option(e)->value);
61 }
62 }
63
64 static void uci_show_package(struct uci_package *p)
65 {
66 struct uci_element *e;
67
68 uci_foreach_element( &p->sections, e) {
69 uci_show_section(uci_to_section(e));
70 }
71 }
72
73
74 static int package_cmd(int cmd, char *package)
75 {
76 struct uci_package *p = NULL;
77
78 if (uci_load(ctx, package, &p) != UCI_OK) {
79 uci_perror(ctx, appname);
80 return 1;
81 }
82 switch(cmd) {
83 case CMD_COMMIT:
84 if (uci_commit(ctx, &p) != UCI_OK)
85 uci_perror(ctx, appname);
86 break;
87 case CMD_EXPORT:
88 uci_export(ctx, stdout, p, true);
89 break;
90 case CMD_SHOW:
91 uci_show_package(p);
92 break;
93 }
94
95 uci_unload(ctx, p);
96 return 0;
97 }
98
99 static int uci_do_package_cmd(int cmd, int argc, char **argv)
100 {
101 char **configs = NULL;
102 char **p;
103
104 if (argc > 2)
105 return 255;
106
107 if (argc == 2)
108 return package_cmd(cmd, argv[1]);
109
110 if ((uci_list_configs(ctx, &configs) != UCI_OK) || !configs) {
111 uci_perror(ctx, appname);
112 return 1;
113 }
114
115 for (p = configs; *p; p++) {
116 package_cmd(cmd, *p);
117 }
118
119 return 0;
120 }
121
122
123 static int uci_do_section_cmd(int cmd, int argc, char **argv)
124 {
125 char *package = NULL;
126 char *section = NULL;
127 char *option = NULL;
128 char *value = NULL;
129 struct uci_package *p = NULL;
130 struct uci_element *e = NULL;
131
132 if (argc != 2)
133 return 255;
134
135 if (uci_parse_tuple(ctx, argv[1], &package, &section, &option, (cmd == CMD_SET ? &value : NULL)) != UCI_OK)
136 return 1;
137
138 if (uci_load(ctx, package, &p) != UCI_OK) {
139 uci_perror(ctx, appname);
140 return 1;
141 }
142
143 switch(cmd) {
144 case CMD_GET:
145 if (uci_lookup(ctx, &e, p, section, option) != UCI_OK)
146 return 1;
147
148 switch(e->type) {
149 case UCI_TYPE_SECTION:
150 value = uci_to_section(e)->type;
151 break;
152 case UCI_TYPE_OPTION:
153 value = uci_to_option(e)->value;
154 break;
155 default:
156 /* should not happen */
157 return 1;
158 }
159 /* throw the value to stdout */
160 printf("%s\n", value);
161 break;
162 case CMD_SET:
163 if (uci_set(ctx, p, section, option, value) != UCI_OK) {
164 uci_perror(ctx, appname);
165 return 1;
166 }
167 break;
168 case CMD_DEL:
169 if (uci_del(ctx, p, section, option) != UCI_OK) {
170 uci_perror(ctx, appname);
171 return 1;
172 }
173 break;
174 }
175
176 /* no save necessary for get */
177 if (cmd == CMD_GET)
178 return 0;
179
180 /* save changes, but don't commit them yet */
181 if (uci_save(ctx, p) != UCI_OK) {
182 uci_perror(ctx, appname);
183 return 1;
184 }
185
186 return 0;
187 }
188
189 static int uci_cmd(int argc, char **argv)
190 {
191 int cmd = 0;
192
193 if (!strcasecmp(argv[0], "show"))
194 cmd = CMD_SHOW;
195 else if (!strcasecmp(argv[0], "export"))
196 cmd = CMD_EXPORT;
197 else if (!strcasecmp(argv[0], "commit"))
198 cmd = CMD_COMMIT;
199 else if (!strcasecmp(argv[0], "get"))
200 cmd = CMD_GET;
201 else if (!strcasecmp(argv[0], "set"))
202 cmd = CMD_SET;
203 else if (!strcasecmp(argv[0], "del"))
204 cmd = CMD_DEL;
205
206 switch(cmd) {
207 case CMD_GET:
208 case CMD_SET:
209 case CMD_DEL:
210 return uci_do_section_cmd(cmd, argc, argv);
211 case CMD_SHOW:
212 case CMD_EXPORT:
213 case CMD_COMMIT:
214 return uci_do_package_cmd(cmd, argc, argv);
215 default:
216 return 255;
217 }
218 }
219
220 int main(int argc, char **argv)
221 {
222 int ret;
223 int c;
224
225 ctx = uci_alloc_context();
226 if (!ctx) {
227 fprintf(stderr, "Out of memory\n");
228 return 1;
229 }
230
231 while((c = getopt(argc, argv, "sS")) != -1) {
232 switch(c) {
233 case 's':
234 ctx->flags |= UCI_FLAG_STRICT;
235 break;
236 case 'S':
237 ctx->flags &= ~UCI_FLAG_STRICT;
238 ctx->flags |= UCI_FLAG_PERROR;
239 break;
240 default:
241 uci_usage(argc, argv);
242 break;
243 }
244 }
245 if (optind > 1)
246 argv[optind - 1] = argv[0];
247 argv += optind - 1;
248 argc -= optind - 1;
249
250 if (argc < 2)
251 uci_usage(argc, argv);
252 ret = uci_cmd(argc - 1, argv + 1);
253 if (ret == 255)
254 uci_usage(argc, argv);
255
256 uci_free_context(ctx);
257
258 return ret;
259 }