add uci.foreach()

diff --git a/lua/uci.c b/lua/uci.c
index ed3796a1298f1ecf9a6f4e43c1bfc7f5e99d04ba..397a36df8a168b6e450dbf40ad05544a2b306ee2 100644 (file)
--- a/lua/uci.c
+++ b/lua/uci.c
@@ -137,6 +137,46 @@ uci_lua_load(lua_State *L)
        return 1;
 }
 
+
+static int
+uci_lua_foreach(lua_State *L)
+{
+       struct uci_package *p;
+       struct uci_element *e;
+       const char *package, *type;
+       bool ret = false;
+
+       package = luaL_checkstring(L, 1);
+
+       if (lua_isnil(L, 2))
+               type = NULL;
+       else
+               type = luaL_checkstring(L, 2);
+
+       if (!lua_isfunction(L, 3) || !package)
+               luaL_error(L, "Invalid argument");
+
+       p = find_package(package);
+       if (!p)
+               goto done;
+
+       uci_foreach_element(&p->sections, e) {
+               struct uci_section *s = uci_to_section(e);
+
+               if (type && (strcmp(s->type, type) != 0))
+                       continue;
+
+               lua_pushvalue(L, 3); /* iterator function */
+               uci_push_section(L, s);
+               if (lua_pcall(L, 1, 0, 0) == 0)
+                       ret = true;
+       }
+
+done:
+       lua_pushboolean(L, ret);
+       return 1;
+}
+
 static int
 uci_lua_get_any(lua_State *L, bool all)
 {
@@ -378,6 +418,7 @@ static const luaL_Reg uci[] = {
        { "save", uci_lua_save },
        { "commit", uci_lua_commit },
        { "revert", uci_lua_revert },
+       { "foreach", uci_lua_foreach },
        { "set_confdir", uci_lua_set_confdir },
        { "set_savedir", uci_lua_set_savedir },
        { NULL, NULL },