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 "uci.h"
  16
  17 static struct uci_context *ctx;
  18 static char *buf = NULL;
  19 static int buflen = 256;
  20
  21 static void uci_usage(int argc, char **argv)
  22 {
  23         fprintf(stderr,
  24                 "Usage: %s [<options>] <command> [<arguments>]\n\n"
  25                 "Commands:\n"
  26                 "\tshow [<config>[.<section>[.<option>]]]\n"
  27                 "\texport [<config>]\n"
  28                 "\n",
  29                 argv[0]
  30         );
  31         exit(255);
  32 }
  33
  34 static void uci_show_section(struct uci_section *p)
  35 {
  36         struct uci_option *o;
  37         const char *cname, *sname;
  38
  39         cname = p->config->name;
  40         sname = p->name;
  41         printf("%s.%s=%s\n", cname, sname, p->type);
  42         uci_foreach_entry(option, &p->options, o) {
  43                 printf("%s.%s.%s=%s\n", cname, sname, o->name, o->value);
  44         }
  45 }
  46
  47 static void foreach_section(const char *configname, const char *section, void (*callback)(struct uci_section *))
  48 {
  49         struct uci_config *cfg;
  50         struct uci_section *p;
  51
  52         if (uci_load(ctx, configname, &cfg) != UCI_OK) {
  53                 uci_perror(ctx, "uci_load");
  54                 return;
  55         }
  56
  57         uci_foreach_entry(section, &cfg->sections, p) {
  58                 if (!section || !strcmp(p->name, section))
  59                         callback(p);
  60         }
  61         uci_unload(ctx, configname);
  62 }
  63
  64 static int uci_show(int argc, char **argv)
  65 {
  66         char **configs = uci_list_configs();
  67         char **p;
  68
  69         if (!configs)
  70                 return 0;
  71
  72         for (p = configs; *p; p++) {
  73                 if ((argc < 2) || !strcmp(argv[1], *p))
  74                         foreach_section(*p, (argc > 2 ? argv[2] : NULL), uci_show_section);
  75         }
  76
  77         return 0;
  78 }
  79
  80 static int uci_do_export(int argc, char **argv)
  81 {
  82         char **configs = uci_list_configs();
  83         char **p;
  84
  85         if (!configs)
  86                 return 0;
  87
  88         for (p = configs; *p; p++) {
  89                 if ((argc < 2) || !strcmp(argv[1], *p)) {
  90                         struct uci_config *cfg = NULL;
  91                         int ret;
  92
  93                         ret = uci_load(ctx, *p, &cfg);
  94                         if (ret)
  95                                 continue;
  96                         uci_export(ctx, stdout, cfg);
  97                         uci_unload(ctx, *p);
  98                 }
  99         }
 100         return 0;
 101 }
 102
 103 static int uci_cmd(int argc, char **argv)
 104 {
 105         if (!strcasecmp(argv[0], "show"))
 106                 return uci_show(argc, argv);
 107         if (!strcasecmp(argv[0], "export"))
 108                 return uci_do_export(argc, argv);
 109         return 255;
 110 }
 111
 112 int main(int argc, char **argv)
 113 {
 114         int ret;
 115
 116         ctx = uci_alloc();
 117         if (argc < 2)
 118                 uci_usage(argc, argv);
 119         ret = uci_cmd(argc - 1, argv + 1);
 120         if (ret == 255)
 121                 uci_usage(argc, argv);
 122         uci_free(ctx);
 123
 124         return ret;
 125 }