ucimap: add example for using the alloc callback

[uci.git] / ucimap-example.c

diff --git a/ucimap-example.c b/ucimap-example.c
index ca5593100e7ebec72767152e51c4559710a4d400..9fc71e2e104e0e1d6c1fc8023356aad5640ce7ce 100644 (file)
--- a/ucimap-example.c
+++ b/ucimap-example.c
@@ -20,25 +20,44 @@
 struct list_head ifs;
 
 struct uci_network {
+       struct ucimap_section_data map;
        struct list_head list;
        struct list_head alias;
 
        const char *name;
        const char *proto;
        const char *ifname;
-       const char *ipaddr;
+       unsigned char ipaddr[4];
        int test;
        bool enabled;
        struct ucimap_list *aliases;
 };
 
 struct uci_alias {
+       struct ucimap_section_data map;
        struct list_head list;
 
        const char *name;
        struct uci_network *interface;
 };
 
+static int
+network_parse_ip(void *section, struct uci_optmap *om, union ucimap_data *data, const char *str)
+{
+       struct uci_network *net = section;
+       unsigned char *target = (unsigned char *) data->s;
+       unsigned int tmp[4];
+       int i;
+
+       if (sscanf(str, "%d.%d.%d.%d", &tmp[0], &tmp[1], &tmp[2], &tmp[3]) != 4)
+               return -1;
+
+       for (i = 0; i < 4; i++)
+               target[i] = (char) tmp[i];
+
+       return 0;
+}
+
 static int
 network_init_interface(struct uci_map *map, void *section, struct uci_section *s)
 {
@@ -82,13 +101,21 @@ network_add_alias(struct uci_map *map, void *section)
        return 0;
 }
 
+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));
+       memset(p, 0, sizeof(struct uci_network));
+       return &p->map;
+}
+
 struct my_optmap {
        struct uci_optmap map;
        int test;
 };
 
-static struct uci_sectmap network_interface;
-static struct uci_sectmap network_alias;
+static struct uci_sectionmap network_interface;
+static struct uci_sectionmap network_alias;
 
 static struct my_optmap network_interface_options[] = {
        {
@@ -109,8 +136,9 @@ static struct my_optmap network_interface_options[] = {
        {
                .map = {
                        UCIMAP_OPTION(struct uci_network, ipaddr),
-                       .type = UCIMAP_STRING,
+                       .type = UCIMAP_CUSTOM,
                        .name = "ipaddr",
+                       .parse = network_parse_ip,
                }
        },
        {
@@ -136,9 +164,10 @@ static struct my_optmap network_interface_options[] = {
        }
 };
 
-static struct uci_sectmap network_interface = {
+static struct uci_sectionmap network_interface = {
+       UCIMAP_SECTION(struct uci_network, map),
        .type = "interface",
-       .alloc_len = sizeof(struct uci_network),
+       .alloc = network_allocate,
        .init = network_init_interface,
        .add = network_add_interface,
        .options = &network_interface_options[0].map,
@@ -154,16 +183,16 @@ static struct uci_optmap network_alias_options[] = {
        }
 };
 
-static struct uci_sectmap network_alias = {
+static struct uci_sectionmap network_alias = {
+       UCIMAP_SECTION(struct uci_alias, map),
        .type = "alias",
        .options = network_alias_options,
-       .alloc_len = sizeof(struct uci_network),
        .init = network_init_alias,
        .add = network_add_alias,
        .n_options = ARRAY_SIZE(network_alias_options),
 };
 
-static struct uci_sectmap *network_smap[] = {
+static struct uci_sectionmap *network_smap[] = {
        &network_interface,
        &network_alias,
 };
@@ -196,13 +225,14 @@ int main(int argc, char **argv)
                printf("New network section '%s'\n"
                        "       type: %s\n"
                        "       ifname: %s\n"
-                       "       ipaddr: %s\n"
+                       "       ipaddr: %d.%d.%d.%d\n"
                        "       test: %d\n"
                        "       enabled: %s\n",
                        net->name,
                        net->proto,
                        net->ifname,
-                       net->ipaddr,
+                       net->ipaddr[0], net->ipaddr[1],
+                       net->ipaddr[2], net->ipaddr[3],
                        net->test,
                        (net->enabled ? "on" : "off"));