stat, lstat and fstat bindings, complete with sio interfaces

1 files changed, 89 insertions, 0 deletions

diff --git a/luxio.c b/luxio.c
index ff98b8f..2cdd532 100644
--- a/luxio.c
+++ b/luxio.c
@@ -331,6 +331,91 @@ luxio_mkdir(lua_State *L)
 }
 
 static int
+luxio_push_stat_table(lua_State *L, struct stat *s)
+{
+	lua_newtable(L);
+
+#define PUSH_ENTRY(e) do { lua_pushstring(L, #e);	\
+	lua_pushinteger(L, s->st_##e);			\
+	lua_settable(L, 3); } while (0)
+
+	PUSH_ENTRY(dev);
+	PUSH_ENTRY(ino);
+	PUSH_ENTRY(mode);
+	PUSH_ENTRY(nlink);
+	PUSH_ENTRY(uid);
+	PUSH_ENTRY(gid);
+	PUSH_ENTRY(rdev);
+	PUSH_ENTRY(size);
+	PUSH_ENTRY(blksize);
+	PUSH_ENTRY(blocks);
+	PUSH_ENTRY(atime);
+	PUSH_ENTRY(mtime);
+	PUSH_ENTRY(ctime);
+
+#undef PUSH_ENTRY
+
+	return 1;
+}
+
+static int
+luxio_stat(lua_State *L)
+{
+	const char *pathname = luaL_checkstring(L, 1);
+	struct stat s;
+	int r = stat(pathname, &s);
+	
+	if (r < 0) {
+		lua_pushinteger(L, r);
+		lua_pushinteger(L, errno);
+		return 2;
+	}
+
+	lua_pushnumber(L, r);
+	luxio_push_stat_table(L, &s);
+
+	return 2;
+}
+
+static int
+luxio_lstat(lua_State *L)
+{
+	const char *pathname = luaL_checkstring(L, 1);
+	struct stat s;
+	int r = lstat(pathname, &s);
+	
+	if (r < 0) {
+		lua_pushinteger(L, r);
+		lua_pushinteger(L, errno);
+		return 2;
+	}
+	
+	lua_pushnumber(L, r);
+	luxio_push_stat_table(L, &s);
+
+	return 2;
+}
+
+static int
+luxio_fstat(lua_State *L)
+{
+	int fd = luaL_checkinteger(L, 1);
+	struct stat s;
+	int r = fstat(fd, &s);
+	
+	if (r < 0) {
+		lua_pushinteger(L, r);
+		lua_pushinteger(L, errno);
+		return 2;
+	}
+
+	lua_pushnumber(L, r);
+	luxio_push_stat_table(L, &s);
+
+	return 2;
+}
+
+static int
 luxio_strerror(lua_State *L)
 {
 	lua_pushstring(L, strerror(luaL_checkint(L, 1)));
@@ -1660,6 +1745,10 @@ luxio_functions[] = {
 	{ "mkfifo",    luxio_mkfifo },
 	{ "mkdir",     luxio_mkdir },
 
+	{ "stat",      luxio_stat },
+	{ "lstat",     luxio_lstat },
+	{ "fstat",     luxio_fstat },
+
 	{ "socket",    luxio_socket },
 	{ "listen",    luxio_listen },
 	{ "shutdown",  luxio_shutdown },