#include <sys/types.h>
#include <sys/time.h>
+#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <uci.h>
#define MODNAME "uci"
+#define METANAME MODNAME ".meta"
//#define DEBUG 1
#ifdef DEBUG
#define DPRINTF(...) do {} while (0)
#endif
-static struct uci_context *ctx = NULL;
+#if !defined LUA_VERSION_NUM || LUA_VERSION_NUM==501
+
+/*
+ * ** Adapted from Lua 5.2.0
+ * */
+static void luaL_setfuncs (lua_State *L, const luaL_Reg *l, int nup) {
+ luaL_checkstack(L, nup+1, "too many upvalues");
+ for (; l->name != NULL; l++) { /* fill the table with given functions */
+ int i;
+ lua_pushstring(L, l->name);
+ for (i = 0; i < nup; i++) /* copy upvalues to the top */
+ lua_pushvalue(L, -(nup+1));
+ lua_pushcclosure(L, l->func, nup); /* closure with those upvalues */
+ lua_settable(L, -(nup + 3));
+ }
+ lua_pop(L, nup); /* remove upvalues */
+}
+
+#define lua_rawlen(L, i) lua_objlen(L, i)
+
+#endif
+
+static struct uci_context *global_ctx = NULL;
+
+static struct uci_context *
+find_context(lua_State *L, int *offset)
+{
+ struct uci_context **ctx;
+ if (!lua_isuserdata(L, 1)) {
+ if (!global_ctx) {
+ global_ctx = uci_alloc_context();
+ if (!global_ctx) {
+ luaL_error(L, "failed to allocate UCI context");
+ return NULL;
+ }
+ }
+ if (offset)
+ *offset = 0;
+ return global_ctx;
+ }
+ if (offset)
+ *offset = 1;
+ ctx = luaL_checkudata(L, 1, METANAME);
+ if (!ctx || !*ctx) {
+ luaL_error(L, "failed to get UCI context");
+ return NULL;
+ }
+
+ return *ctx;
+}
static struct uci_package *
-find_package(const char *name)
+find_package(lua_State *L, struct uci_context *ctx, const char *str, bool al)
{
struct uci_package *p = NULL;
struct uci_element *e;
+ char *sep;
+ char *name;
+
+ sep = strchr(str, '.');
+ if (sep) {
+ name = malloc(1 + sep - str);
+ if (!name) {
+ luaL_error(L, "out of memory");
+ return NULL;
+ }
+ strncpy(name, str, sep - str);
+ name[sep - str] = 0;
+ } else
+ name = (char *) str;
+
uci_foreach_element(&ctx->root, e) {
if (strcmp(e->name, name) != 0)
continue;
p = uci_to_package(e);
- break;
+ goto done;
}
+
+ if (al)
+ uci_load(ctx, name, &p);
+
+done:
+ if (name != str)
+ free(name);
return p;
}
-static void uci_lua_perror(lua_State *L, char *name)
+static int
+lookup_extended(struct uci_context *ctx, struct uci_ptr *ptr, char *str, bool extended)
+{
+ int rv;
+ struct uci_ptr lookup;
+
+ /* use a copy of the passed ptr since failing lookups will
+ * clobber the state */
+ lookup = *ptr;
+ lookup.flags |= UCI_LOOKUP_EXTENDED;
+
+ rv = uci_lookup_ptr(ctx, &lookup, str, extended);
+
+ /* copy to passed ptr on success */
+ if (!rv)
+ *ptr = lookup;
+
+ return rv;
+}
+
+static int
+lookup_ptr(struct uci_context *ctx, struct uci_ptr *ptr, char *str, bool extended)
{
- lua_getfield(L, LUA_GLOBALSINDEX, "uci");
- lua_getfield(L, -1, "warn");
- if (!lua_isboolean(L, -1))
- goto done;
- if (lua_toboolean(L, -1) != 1)
- goto done;
- uci_perror(ctx, name);
-done:
- lua_pop(L, 2);
+ if (ptr && !ptr->s && ptr->section && *ptr->section == '@')
+ return lookup_extended(ctx, ptr, str, extended);
+
+ return uci_lookup_ptr(ctx, ptr, str, extended);
+}
+
+static int
+lookup_args(lua_State *L, struct uci_context *ctx, int offset, struct uci_ptr *ptr, char **buf)
+{
+ char *s = NULL;
+ int n;
+
+ n = lua_gettop(L);
+ luaL_checkstring(L, 1 + offset);
+ s = strdup(lua_tostring(L, 1 + offset));
+ if (!s)
+ goto error;
+
+ memset(ptr, 0, sizeof(struct uci_ptr));
+ if (!find_package(L, ctx, s, true))
+ goto error;
+
+ switch (n - offset) {
+ case 4:
+ case 3:
+ ptr->option = luaL_checkstring(L, 3 + offset);
+ /* fall through */
+ case 2:
+ ptr->section = luaL_checkstring(L, 2 + offset);
+ ptr->package = luaL_checkstring(L, 1 + offset);
+ if (lookup_ptr(ctx, ptr, NULL, true) != UCI_OK)
+ goto error;
+ break;
+ case 1:
+ if (lookup_ptr(ctx, ptr, s, true) != UCI_OK)
+ goto error;
+ break;
+ default:
+ luaL_error(L, "invalid argument count");
+ goto error;
+ }
+
+ *buf = s;
+ return 0;
+
+error:
+ if (s)
+ free(s);
+ return 1;
+}
+
+static int
+uci_push_status(lua_State *L, struct uci_context *ctx, bool hasarg)
+{
+ char *str = NULL;
+
+ if (!hasarg)
+ lua_pushboolean(L, (ctx->err == UCI_OK));
+ if (ctx->err) {
+ uci_get_errorstr(ctx, &str, MODNAME);
+ if (str) {
+ lua_pushstring(L, str);
+ free(str);
+ return 2;
+ }
+ }
+ return 1;
+}
+
+static void
+uci_push_option(lua_State *L, struct uci_option *o)
+{
+ struct uci_element *e;
+ int i = 0;
+
+ switch(o->type) {
+ case UCI_TYPE_STRING:
+ lua_pushstring(L, o->v.string);
+ break;
+ case UCI_TYPE_LIST:
+ lua_newtable(L);
+ uci_foreach_element(&o->v.list, e) {
+ i++;
+ lua_pushstring(L, e->name);
+ lua_rawseti(L, -2, i);
+ }
+ break;
+ default:
+ lua_pushnil(L);
+ break;
+ }
+}
+
+static void
+uci_push_section(lua_State *L, struct uci_section *s, int index)
+{
+ struct uci_element *e;
+
+ lua_newtable(L);
+ lua_pushboolean(L, s->anonymous);
+ lua_setfield(L, -2, ".anonymous");
+ lua_pushstring(L, s->type);
+ lua_setfield(L, -2, ".type");
+ lua_pushstring(L, s->e.name);
+ lua_setfield(L, -2, ".name");
+ if (index >= 0) {
+ lua_pushinteger(L, index);
+ lua_setfield(L, -2, ".index");
+ }
+
+ uci_foreach_element(&s->options, e) {
+ struct uci_option *o = uci_to_option(e);
+ uci_push_option(L, o);
+ lua_setfield(L, -2, o->e.name);
+ }
+}
+
+static void
+uci_push_package(lua_State *L, struct uci_package *p)
+{
+ struct uci_element *e;
+ int i = 0;
+
+ lua_newtable(L);
+ uci_foreach_element(&p->sections, e) {
+ uci_push_section(L, uci_to_section(e), i);
+ lua_setfield(L, -2, e->name);
+ i++;
+ }
}
static int
uci_lua_unload(lua_State *L)
{
+ struct uci_context *ctx;
struct uci_package *p;
const char *s;
+ int offset = 0;
- luaL_checkstring(L, 1);
- s = lua_tostring(L, -1);
- p = find_package(s);
+ ctx = find_context(L, &offset);
+ luaL_checkstring(L, 1 + offset);
+ s = lua_tostring(L, 1 + offset);
+ p = find_package(L, ctx, s, false);
if (p) {
uci_unload(ctx, p);
- lua_pushboolean(L, 1);
+ return uci_push_status(L, ctx, false);
} else {
lua_pushboolean(L, 0);
}
static int
uci_lua_load(lua_State *L)
{
+ struct uci_context *ctx;
struct uci_package *p = NULL;
const char *s;
+ int offset = 0;
+ ctx = find_context(L, &offset);
uci_lua_unload(L);
lua_pop(L, 1); /* bool ret value of unload */
s = lua_tostring(L, -1);
- if (uci_load(ctx, s, &p)) {
- uci_lua_perror(L, "uci.load");
- lua_pushboolean(L, 0);
- } else {
- lua_pushboolean(L, 1);
+ uci_load(ctx, s, &p);
+ return uci_push_status(L, ctx, false);
+}
+
+
+static int
+uci_lua_foreach(lua_State *L)
+{
+ struct uci_context *ctx;
+ struct uci_package *p;
+ struct uci_element *e, *tmp;
+ const char *package, *type;
+ bool ret = false;
+ int offset = 0;
+ int i = 0;
+
+ ctx = find_context(L, &offset);
+ package = luaL_checkstring(L, 1 + offset);
+
+ if (lua_isnil(L, 2 + offset))
+ type = NULL;
+ else
+ type = luaL_checkstring(L, 2 + offset);
+
+ if (!lua_isfunction(L, 3 + offset) || !package)
+ return luaL_error(L, "Invalid argument");
+
+ p = find_package(L, ctx, package, true);
+ if (!p)
+ goto done;
+
+ uci_foreach_element_safe(&p->sections, tmp, e) {
+ struct uci_section *s = uci_to_section(e);
+
+ i++;
+
+ if (type && (strcmp(s->type, type) != 0))
+ continue;
+
+ lua_pushvalue(L, 3 + offset); /* iterator function */
+ uci_push_section(L, s, i - 1);
+ if (lua_pcall(L, 1, 1, 0) == 0) {
+ ret = true;
+ if (lua_isboolean(L, -1) && !lua_toboolean(L, -1))
+ break;
+ }
+ else
+ {
+ lua_error(L);
+ break;
+ }
}
+done:
+ lua_pushboolean(L, ret);
return 1;
}
static int
-uci_lua_get(lua_State *L)
+uci_lua_get_any(lua_State *L, bool all)
{
+ struct uci_context *ctx;
struct uci_element *e = NULL;
- struct uci_package *p = NULL;
- char *package = NULL;
- char *section = NULL;
- char *option = NULL;
- char *s;
- int err = UCI_ERR_MEM;
+ struct uci_ptr ptr;
+ int offset = 0;
+ int nret = 1;
+ char *s = NULL;
+ int err = UCI_ERR_NOTFOUND;
- luaL_checkstring(L, 1);
- s = strdup(lua_tostring(L, -1));
- if (!s)
- goto error;
+ ctx = find_context(L, &offset);
- if ((err = uci_parse_tuple(ctx, s, &package, §ion, &option, NULL)))
+ if (lookup_args(L, ctx, offset, &ptr, &s))
goto error;
- if (section == NULL) {
+ lookup_ptr(ctx, &ptr, NULL, true);
+ if (!all && !ptr.s) {
err = UCI_ERR_INVAL;
goto error;
}
-
- p = find_package(package);
- if (!p) {
+ if (!(ptr.flags & UCI_LOOKUP_COMPLETE)) {
err = UCI_ERR_NOTFOUND;
goto error;
}
- if ((err = uci_lookup(ctx, &e, p, section, option)))
- goto error;
-
+ err = UCI_OK;
+ e = ptr.last;
switch(e->type) {
+ case UCI_TYPE_PACKAGE:
+ uci_push_package(L, ptr.p);
+ break;
case UCI_TYPE_SECTION:
- lua_pushstring(L, uci_to_section(e)->type);
+ if (all) {
+ uci_push_section(L, ptr.s, -1);
+ }
+ else {
+ lua_pushstring(L, ptr.s->type);
+ lua_pushstring(L, ptr.s->e.name);
+ nret++;
+ }
break;
case UCI_TYPE_OPTION:
- lua_pushstring(L, uci_to_option(e)->value);
+ uci_push_option(L, ptr.o);
break;
default:
err = UCI_ERR_INVAL;
goto error;
}
+ if (s)
+ free(s);
+ if (!err)
+ return nret;
+
error:
if (s)
free(s);
- switch(err) {
- default:
- ctx->err = err;
- uci_lua_perror(L, "uci.get");
- /* fall through */
- case UCI_ERR_NOTFOUND:
- lua_pushnil(L);
- /* fall through */
- case 0:
- return 1;
- }
+ lua_pushnil(L);
+ return uci_push_status(L, ctx, true);
}
+static int
+uci_lua_get(lua_State *L)
+{
+ return uci_lua_get_any(L, false);
+}
static int
-uci_lua_set(lua_State *L)
+uci_lua_get_all(lua_State *L)
{
+ return uci_lua_get_any(L, true);
+}
+
+static int
+uci_lua_add(lua_State *L)
+{
+ struct uci_context *ctx;
+ struct uci_section *s = NULL;
struct uci_package *p;
- char *package = NULL;
- char *section = NULL;
- char *option = NULL;
- char *value = NULL;
- char *s;
+ const char *package;
+ const char *type;
+ const char *name = NULL;
+ int offset = 0;
+
+ ctx = find_context(L, &offset);
+ package = luaL_checkstring(L, 1 + offset);
+ type = luaL_checkstring(L, 2 + offset);
+ p = find_package(L, ctx, package, true);
+ if (!p)
+ goto fail;
+
+ if (uci_add_section(ctx, p, type, &s) || !s)
+ goto fail;
+
+ name = s->e.name;
+ lua_pushstring(L, name);
+ return 1;
+
+fail:
+ lua_pushnil(L);
+ return uci_push_status(L, ctx, true);
+}
+
+static int
+uci_lua_delete(lua_State *L)
+{
+ struct uci_context *ctx;
+ struct uci_ptr ptr;
+ int offset = 0;
+ char *s = NULL;
+
+ ctx = find_context(L, &offset);
+
+ if (lookup_args(L, ctx, offset, &ptr, &s))
+ goto error;
+
+ uci_delete(ctx, &ptr);
+
+error:
+ if (s)
+ free(s);
+ return uci_push_status(L, ctx, false);
+}
+
+static int
+uci_lua_rename(lua_State *L)
+{
+ struct uci_context *ctx;
+ struct uci_ptr ptr;
int err = UCI_ERR_MEM;
+ char *s = NULL;
+ int nargs, offset = 0;
- luaL_checkstring(L, 1);
- s = strdup(lua_tostring(L, -1));
- if (!s)
+ ctx = find_context(L, &offset);
+ nargs = lua_gettop(L);
+ if (lookup_args(L, ctx, offset, &ptr, &s))
+ goto error;
+
+ switch(nargs - offset) {
+ case 1:
+ /* Format: uci.set("p.s.o=v") or uci.set("p.s=v") */
+ break;
+ case 4:
+ /* Format: uci.set("p", "s", "o", "v") */
+ ptr.value = luaL_checkstring(L, nargs);
+ break;
+ case 3:
+ /* Format: uci.set("p", "s", "v") */
+ ptr.value = ptr.option;
+ ptr.option = NULL;
+ break;
+ default:
+ err = UCI_ERR_INVAL;
goto error;
+ }
- if ((err = uci_parse_tuple(ctx, s, &package, §ion, &option, &value)))
+ err = lookup_ptr(ctx, &ptr, NULL, true);
+ if (err)
goto error;
- if ((section == NULL) || (value == NULL)) {
+ if (((ptr.s == NULL) && (ptr.option != NULL)) || (ptr.value == NULL)) {
err = UCI_ERR_INVAL;
goto error;
}
- p = find_package(package);
- if (!p) {
- err = UCI_ERR_NOTFOUND;
+ err = uci_rename(ctx, &ptr);
+ if (err)
+ goto error;
+
+error:
+ if (s)
+ free(s);
+ return uci_push_status(L, ctx, false);
+}
+
+static int
+uci_lua_reorder(lua_State *L)
+{
+ struct uci_context *ctx;
+ struct uci_ptr ptr;
+ int err = UCI_ERR_MEM;
+ char *s = NULL;
+ int nargs, offset = 0;
+
+ ctx = find_context(L, &offset);
+ nargs = lua_gettop(L);
+ if (lookup_args(L, ctx, offset, &ptr, &s))
+ goto error;
+
+ switch(nargs - offset) {
+ case 1:
+ /* Format: uci.set("p.s=v") or uci.set("p.s=v") */
+ if (ptr.option) {
+ err = UCI_ERR_INVAL;
+ goto error;
+ }
+ break;
+ case 3:
+ /* Format: uci.set("p", "s", "v") */
+ ptr.value = ptr.option;
+ ptr.option = NULL;
+ break;
+ default:
+ err = UCI_ERR_INVAL;
+ goto error;
+ }
+
+ err = lookup_ptr(ctx, &ptr, NULL, true);
+ if (err)
+ goto error;
+
+ if ((ptr.s == NULL) || (ptr.value == NULL)) {
+ err = UCI_ERR_INVAL;
goto error;
}
- err = uci_set(ctx, p, section, option, value, NULL);
+
+ err = uci_reorder_section(ctx, ptr.s, strtoul(ptr.value, NULL, 10));
+ if (err)
+ goto error;
error:
+ if (s)
+ free(s);
+ return uci_push_status(L, ctx, false);
+}
+
+
+static int
+uci_lua_set(lua_State *L)
+{
+ struct uci_context *ctx;
+ struct uci_ptr ptr;
+ bool istable = false;
+ int err = UCI_ERR_MEM;
+ char *s = NULL;
+ const char *v;
+ int i, nargs, offset = 0;
+
+ ctx = find_context(L, &offset);
+ nargs = lua_gettop(L);
+ if (lookup_args(L, ctx, offset, &ptr, &s))
+ goto error;
+
+ switch(nargs - offset) {
+ case 1:
+ /* Format: uci.set("p.s.o=v") or uci.set("p.s=v") */
+ break;
+ case 4:
+ /* Format: uci.set("p", "s", "o", "v") */
+ if (lua_istable(L, nargs)) {
+ if (lua_rawlen(L, nargs) < 1)
+ return luaL_error(L, "Cannot set an uci option to an empty table value");
+ lua_rawgeti(L, nargs, 1);
+ ptr.value = luaL_checkstring(L, -1);
+ lua_pop(L, 1);
+ istable = true;
+ } else {
+ ptr.value = luaL_checkstring(L, nargs);
+ }
+ break;
+ case 3:
+ /* Format: uci.set("p", "s", "v") */
+ ptr.value = ptr.option;
+ ptr.option = NULL;
+ break;
+ default:
+ err = UCI_ERR_INVAL;
+ goto error;
+ }
+
+ err = lookup_ptr(ctx, &ptr, NULL, true);
if (err)
- uci_lua_perror(L, "uci.set");
- lua_pushboolean(L, (err == 0));
- return 1;
+ goto error;
+
+ if (((ptr.s == NULL) && (ptr.option != NULL)) || (ptr.value == NULL)) {
+ err = UCI_ERR_INVAL;
+ goto error;
+ }
+
+ if (istable) {
+ if (lua_rawlen(L, nargs) == 1) {
+ i = 1;
+ if (ptr.o) {
+ v = ptr.value;
+ ptr.value = NULL;
+ err = uci_delete(ctx, &ptr);
+ if (err)
+ goto error;
+ ptr.value = v;
+ }
+ } else {
+ i = 2;
+ err = uci_set(ctx, &ptr);
+ if (err)
+ goto error;
+ }
+
+ for (; i <= lua_rawlen(L, nargs); i++) {
+ lua_rawgeti(L, nargs, i);
+ ptr.value = luaL_checkstring(L, -1);
+ err = uci_add_list(ctx, &ptr);
+ lua_pop(L, 1);
+ if (err)
+ goto error;
+ }
+ } else {
+ err = uci_set(ctx, &ptr);
+ if (err)
+ goto error;
+ }
+
+
+error:
+ if (s)
+ free(s);
+ return uci_push_status(L, ctx, false);
}
+enum pkg_cmd {
+ CMD_SAVE,
+ CMD_COMMIT,
+ CMD_REVERT
+};
+
static int
-uci_lua_commit(lua_State *L)
+uci_lua_package_cmd(lua_State *L, enum pkg_cmd cmd)
{
+ struct uci_context *ctx;
struct uci_element *e, *tmp;
- const char *s = NULL;
- int failed = 0;
+ struct uci_ptr ptr;
+ char *s = NULL;
+ int nargs, offset = 0;
- if (!lua_isnoneornil(L, -1)) {
- luaL_checkstring(L, 1);
- s = lua_tostring(L, -1);
- }
+ ctx = find_context(L, &offset);
+ nargs = lua_gettop(L);
+ if ((cmd != CMD_REVERT) && (nargs - offset > 1))
+ goto err;
+
+ if (lookup_args(L, ctx, offset, &ptr, &s))
+ goto err;
+
+ lookup_ptr(ctx, &ptr, NULL, true);
uci_foreach_element_safe(&ctx->root, tmp, e) {
struct uci_package *p = uci_to_package(e);
- if (s && (strcmp(s, e->name) != 0))
+ if (ptr.p && (ptr.p != p))
continue;
- if (uci_commit(ctx, &p, false) != 0)
- failed = 1;
+ ptr.p = p;
+ switch(cmd) {
+ case CMD_COMMIT:
+ uci_commit(ctx, &p, false);
+ break;
+ case CMD_SAVE:
+ uci_save(ctx, p);
+ break;
+ case CMD_REVERT:
+ uci_revert(ctx, &ptr);
+ break;
+ }
}
- lua_pushboolean(L, !failed);
- return 1;
+
+err:
+ if (s)
+ free(s);
+ return uci_push_status(L, ctx, false);
}
static int
uci_lua_save(lua_State *L)
{
+ return uci_lua_package_cmd(L, CMD_SAVE);
+}
+
+static int
+uci_lua_commit(lua_State *L)
+{
+ return uci_lua_package_cmd(L, CMD_COMMIT);
+}
+
+static int
+uci_lua_revert(lua_State *L)
+{
+ return uci_lua_package_cmd(L, CMD_REVERT);
+}
+
+static void
+uci_lua_add_change(lua_State *L, struct uci_element *e)
+{
+ struct uci_delta *h;
+ const char *name;
+ const char *value;
+
+ h = uci_to_delta(e);
+ if (!h->section)
+ return;
+
+ lua_getfield(L, -1, h->section);
+ if (lua_isnil(L, -1)) {
+ lua_pop(L, 1);
+ lua_newtable(L);
+ lua_pushvalue(L, -1); /* copy for setfield */
+ lua_setfield(L, -3, h->section);
+ }
+
+ name = h->e.name;
+ value = h->value ? h->value : "";
+
+ if (name) {
+ lua_getfield(L, -1, name);
+
+ /* this delta is a list add operation */
+ if (h->cmd == UCI_CMD_LIST_ADD) {
+ /* there seems to be no table yet */
+ if (!lua_istable(L, -1)) {
+ lua_newtable(L);
+
+ /* if there is a value on the stack already, add */
+ if (!lua_isnil(L, -2)) {
+ lua_pushvalue(L, -2);
+ lua_rawseti(L, -2, 1);
+ lua_pushstring(L, value);
+ lua_rawseti(L, -2, 2);
+
+ /* this is the first table item */
+ } else {
+ lua_pushstring(L, value);
+ lua_rawseti(L, -2, 1);
+ }
+
+ lua_setfield(L, -3, name);
+
+ /* a table is on the top of the stack and this is a subsequent,
+ * list_add, append this value to table */
+ } else {
+ lua_pushstring(L, value);
+ lua_rawseti(L, -2, lua_rawlen(L, -2) + 1);
+ }
+
+ /* non-list change, simply set/replace field */
+ } else {
+ lua_pushstring(L, value);
+ lua_setfield(L, -3, name);
+ }
+
+ lua_pop(L, 1);
+ } else {
+ lua_pushstring(L, value);
+ lua_setfield(L, -2, ".type");
+ }
+
+ lua_pop(L, 1);
+}
+
+static void
+uci_lua_changes_pkg(lua_State *L, struct uci_context *ctx, const char *package)
+{
+ struct uci_package *p = NULL;
struct uci_element *e;
- const char *s = NULL;
- int failed = 0;
+ bool autoload = false;
- if (!lua_isnoneornil(L, -1)) {
- luaL_checkstring(L, 1);
- s = lua_tostring(L, -1);
+ p = find_package(L, ctx, package, false);
+ if (!p) {
+ autoload = true;
+ p = find_package(L, ctx, package, true);
+ if (!p)
+ return;
}
- uci_foreach_element(&ctx->root, e) {
- if (s && (strcmp(s, e->name) != 0))
- continue;
+ if (uci_list_empty(&p->delta) && uci_list_empty(&p->saved_delta))
+ goto done;
+
+ lua_newtable(L);
+ uci_foreach_element(&p->saved_delta, e) {
+ uci_lua_add_change(L, e);
+ }
+ uci_foreach_element(&p->delta, e) {
+ uci_lua_add_change(L, e);
+ }
+ lua_setfield(L, -2, p->e.name);
+
+done:
+ if (autoload)
+ uci_unload(ctx, p);
+}
+
+static int
+uci_lua_changes(lua_State *L)
+{
+ struct uci_context *ctx;
+ const char *package = NULL;
+ char **config = NULL;
+ int nargs;
+ int i, offset = 0;
- if (uci_save(ctx, uci_to_package(e)) != 0)
- failed = 1;
+ ctx = find_context(L, &offset);
+ nargs = lua_gettop(L);
+ switch(nargs - offset) {
+ case 1:
+ package = luaL_checkstring(L, 1 + offset);
+ case 0:
+ break;
+ default:
+ return luaL_error(L, "invalid argument count");
}
- lua_pushboolean(L, !failed);
+
+ lua_newtable(L);
+ if (package) {
+ uci_lua_changes_pkg(L, ctx, package);
+ } else {
+ if (uci_list_configs(ctx, &config) != 0)
+ goto done;
+
+ for(i = 0; config[i] != NULL; i++) {
+ uci_lua_changes_pkg(L, ctx, config[i]);
+ }
+ }
+
+done:
+ return 1;
+}
+
+static int
+uci_lua_get_confdir(lua_State *L)
+{
+ struct uci_context *ctx = find_context(L, NULL);
+ lua_pushstring(L, ctx->confdir);
return 1;
}
static int
uci_lua_set_confdir(lua_State *L)
{
- int ret;
+ struct uci_context *ctx;
+ int offset = 0;
+
+ ctx = find_context(L, &offset);
+ luaL_checkstring(L, 1 + offset);
+ uci_set_confdir(ctx, lua_tostring(L, -1));
+ return uci_push_status(L, ctx, false);
+}
- luaL_checkstring(L, 1);
- ret = uci_set_confdir(ctx, lua_tostring(L, -1));
- lua_pushboolean(L, (ret == 0));
+static int
+uci_lua_get_savedir(lua_State *L)
+{
+ struct uci_context *ctx = find_context(L, NULL);
+ lua_pushstring(L, ctx->savedir);
return 1;
}
static int
+uci_lua_add_delta(lua_State *L)
+{
+ struct uci_context *ctx;
+ int offset = 0;
+
+ ctx = find_context(L, &offset);
+ luaL_checkstring(L, 1 + offset);
+ uci_add_delta_path(ctx, lua_tostring(L, -1));
+ return uci_push_status(L, ctx, false);
+}
+
+static int
uci_lua_set_savedir(lua_State *L)
{
- int ret;
+ struct uci_context *ctx;
+ int offset = 0;
+
+ ctx = find_context(L, &offset);
+ luaL_checkstring(L, 1 + offset);
+ uci_set_savedir(ctx, lua_tostring(L, -1));
+ return uci_push_status(L, ctx, false);
+}
- luaL_checkstring(L, 1);
- ret = uci_set_savedir(ctx, lua_tostring(L, -1));
- lua_pushboolean(L, (ret == 0));
+static int
+uci_lua_list_configs(lua_State *L)
+{
+ struct uci_context *ctx;
+ char **configs = NULL;
+ char **ptr;
+ int i = 1;
+ ctx = find_context(L, NULL);
+ if ((uci_list_configs(ctx, &configs) != UCI_OK) || !configs)
+ return uci_push_status(L, ctx, false);
+ lua_newtable(L);
+ for (ptr = configs; *ptr; ptr++) {
+ lua_pushstring(L, *ptr);
+ lua_rawseti(L, -2, i++);
+ }
+ free(configs);
+ return 1;
+}
+
+static int
+uci_lua_gc(lua_State *L)
+{
+ struct uci_context **ctx;
+
+ if (!lua_isuserdata(L, 1)) {
+ if (!global_ctx)
+ return 0;
+ ctx = &global_ctx;
+ } else {
+ ctx = luaL_checkudata(L, 1, METANAME);
+ if (!*ctx)
+ return 0;
+ }
+ uci_free_context(*ctx);
+ *ctx = NULL;
+ return 0;
+}
+
+static int
+uci_lua_cursor(lua_State *L)
+{
+ struct uci_context **u;
+ int argc = lua_gettop(L);
+
+ u = lua_newuserdata(L, sizeof(struct uci_context *));
+ luaL_getmetatable(L, METANAME);
+ lua_setmetatable(L, -2);
+
+ *u = uci_alloc_context();
+ if (!*u)
+ return luaL_error(L, "Cannot allocate UCI context");
+ switch (argc) {
+ case 2:
+ if (lua_isstring(L, 2) &&
+ (uci_set_savedir(*u, luaL_checkstring(L, 2)) != UCI_OK))
+ return luaL_error(L, "Unable to set savedir");
+ /* fall through */
+ case 1:
+ if (lua_isstring(L, 1) &&
+ (uci_set_confdir(*u, luaL_checkstring(L, 1)) != UCI_OK))
+ return luaL_error(L, "Unable to set savedir");
+ break;
+ default:
+ break;
+ }
return 1;
}
static const luaL_Reg uci[] = {
+ { "__gc", uci_lua_gc },
+ { "close", uci_lua_gc },
+ { "cursor", uci_lua_cursor },
{ "load", uci_lua_load },
{ "unload", uci_lua_unload },
{ "get", uci_lua_get },
+ { "get_all", uci_lua_get_all },
+ { "add", uci_lua_add },
{ "set", uci_lua_set },
+ { "rename", uci_lua_rename },
{ "save", uci_lua_save },
+ { "delete", uci_lua_delete },
{ "commit", uci_lua_commit },
+ { "revert", uci_lua_revert },
+ { "reorder", uci_lua_reorder },
+ { "changes", uci_lua_changes },
+ { "foreach", uci_lua_foreach },
+ { "add_history", uci_lua_add_delta },
+ { "add_delta", uci_lua_add_delta },
+ { "get_confdir", uci_lua_get_confdir },
{ "set_confdir", uci_lua_set_confdir },
+ { "get_savedir", uci_lua_get_savedir },
{ "set_savedir", uci_lua_set_savedir },
+ { "list_configs", uci_lua_list_configs },
{ NULL, NULL },
};
int
luaopen_uci(lua_State *L)
{
- ctx = uci_alloc_context();
- if (!ctx)
- luaL_error(L, "Cannot allocate UCI context\n");
- luaL_register(L, MODNAME, uci);
- return 0;
+ /* create metatable */
+ luaL_newmetatable(L, METANAME);
+
+ /* metatable.__index = metatable */
+ lua_pushvalue(L, -1);
+ lua_setfield(L, -2, "__index");
+
+ /* fill metatable */
+ luaL_setfuncs(L, uci, 0);
+ lua_pop(L, 1);
+
+ /* create module */
+ lua_newtable(L);
+ lua_pushvalue(L, -1);
+ luaL_setfuncs(L, uci, 0);
+ lua_setglobal(L, MODNAME);
+
+ return 1;
}
projects / project / uci.git / blobdiff