add new command del_list
[project/uci.git] / ucimap-example.c
index bf70eb1..18c3c1f 100644 (file)
@@ -1,6 +1,6 @@
 /*
  * ucimap-example - sample code for the ucimap library
- * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2008-2009 Felix Fietkau <nbd@openwrt.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2
@@ -16,6 +16,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <ucimap.h>
+#include "list.h"
 
 struct list_head ifs;
 
@@ -27,7 +28,7 @@ struct uci_network {
        const char *name;
        const char *proto;
        const char *ifname;
-       unsigned char ipaddr[4];
+       unsigned char *ipaddr;
        int test;
        bool enabled;
        struct ucimap_list *aliases;
@@ -44,13 +45,18 @@ struct uci_alias {
 static int
 network_parse_ip(void *section, struct uci_optmap *om, union ucimap_data *data, const char *str)
 {
-       unsigned char *target = (unsigned char *) data->s;
+       unsigned char *target;
        int tmp[4];
        int i;
 
        if (sscanf(str, "%d.%d.%d.%d", &tmp[0], &tmp[1], &tmp[2], &tmp[3]) != 4)
                return -1;
 
+       target = malloc(4);
+       if (!target)
+               return -1;
+
+       data->ptr = target;
        for (i = 0; i < 4; i++)
                target[i] = (char) tmp[i];
 
@@ -58,17 +64,27 @@ network_parse_ip(void *section, struct uci_optmap *om, union ucimap_data *data,
 }
 
 static int
-network_format_ip(void *sction, struct uci_optmap *om, union ucimap_data *data, char **str)
+network_format_ip(void *section, struct uci_optmap *om, union ucimap_data *data, char **str)
 {
        static char buf[16];
-       unsigned char *ip = (unsigned char *) data->s;
+       unsigned char *ip = (unsigned char *) data->ptr;
 
-       sprintf(buf, "%d.%d.%d.%d", ip[0], ip[1], ip[2], ip[3]);
-       *str = buf;
+       if (ip) {
+               sprintf(buf, "%d.%d.%d.%d", ip[0], ip[1], ip[2], ip[3]);
+               *str = buf;
+       } else {
+               *str = NULL;
+       }
 
        return 0;
 }
 
+static void
+network_free_ip(void *section, struct uci_optmap *om, void *ptr)
+{
+       free(ptr);
+}
+
 static int
 network_init_interface(struct uci_map *map, void *section, struct uci_section *s)
 {
@@ -116,6 +132,8 @@ static struct ucimap_section_data *
 network_allocate(struct uci_map *map, struct uci_sectionmap *sm, struct uci_section *s)
 {
        struct uci_network *p = malloc(sizeof(struct uci_network));
+       if (!p)
+               return NULL;
        memset(p, 0, sizeof(struct uci_network));
        return &p->map;
 }
@@ -151,6 +169,7 @@ static struct my_optmap network_interface_options[] = {
                        .name = "ipaddr",
                        .parse = network_parse_ip,
                        .format = network_format_ip,
+                       .free = network_free_ip,
                }
        },
        {
@@ -222,19 +241,34 @@ int main(int argc, char **argv)
        struct list_head *p;
        struct uci_network *net;
        struct uci_alias *alias;
+       bool set = false;
        int i;
 
        INIT_LIST_HEAD(&ifs);
        ctx = uci_alloc_context();
+       if (!ctx)
+               return -1;
        ucimap_init(&network_map);
 
+       if ((argc >= 2) && !strcmp(argv[1], "-s")) {
+               uci_set_savedir(ctx, "./test/save");
+               set = true;
+       }
+
        uci_set_confdir(ctx, "./test/config");
        uci_load(ctx, "network", &pkg);
 
        ucimap_parse(&network_map, pkg);
 
        list_for_each(p, &ifs) {
+               const unsigned char *ipaddr;
+               int n_aliases = 0;
+
                net = list_entry(p, struct uci_network, list);
+               ipaddr = net->ipaddr;
+               if (!ipaddr)
+                       ipaddr = (const unsigned char *) "\x00\x00\x00\x00";
+
                printf("New network section '%s'\n"
                        "       type: %s\n"
                        "       ifname: %s\n"
@@ -244,21 +278,40 @@ int main(int argc, char **argv)
                        net->name,
                        net->proto,
                        net->ifname,
-                       net->ipaddr[0], net->ipaddr[1],
-                       net->ipaddr[2], net->ipaddr[3],
+                       ipaddr[0], ipaddr[1], ipaddr[2], ipaddr[3],
                        net->test,
                        (net->enabled ? "on" : "off"));
 
-               for (i = 0; i < net->aliases->n_items; i++) {
-                       alias = net->aliases->item[i].ptr;
+               if (net->aliases->n_items > 0) {
+                       printf("Configured aliases:");
+                       for (i = 0; i < net->aliases->n_items; i++) {
+                               alias = net->aliases->item[i].ptr;
+                               printf(" %s", alias->name);
+                       }
+                       printf("\n");
+               }
+               list_for_each_entry(alias, &net->alias, list) {
+                       n_aliases++;
+                       for (i = 0; i < net->aliases->n_items; i++) {
+                               if (alias == net->aliases->item[i].ptr)
+                                       goto next_alias;
+                       }
                        printf("New alias: %s\n", alias->name);
+next_alias:
+                       continue;
+               }
+               if (set && !strcmp(net->name, "lan")) {
+                       ucimap_free_item(&net->map, &net->ipaddr);
+                       ucimap_set_changed(&net->map, &net->ipaddr);
+                       ucimap_resize_list(&net->map, &net->aliases, n_aliases);
+                       net->aliases->n_items = 0;
+                       list_for_each_entry(alias, &net->alias, list) {
+                               net->aliases->item[net->aliases->n_items++].ptr = alias;
+                       }
+                       ucimap_set_changed(&net->map, &net->aliases);
+                       ucimap_store_section(&network_map, pkg, &net->map);
+                       uci_save(ctx, pkg);
                }
-#if 0
-               memcpy(net->ipaddr, "\x01\x03\x04\x05", 4);
-               ucimap_set_changed(&net->map, &net->ipaddr);
-               ucimap_store_section(&network_map, pkg, &net->map);
-               uci_save(ctx, pkg);
-#endif
        }