fix mem leak in html renderer

1 files changed, 4 insertions, 8 deletions

diff --git a/html.lua b/html.lua
index 9f03f39..349cfec 100644
--- a/html.lua
+++ b/html.lua
@@ -9,19 +9,15 @@ local function render(txt)
    local callbacks = ffi.new('struct sd_callbacks')
    local options = ffi.new('struct sd_html_renderopt')
    C.sd_html_renderer(callbacks, options, 0)
-
    local markdown = C.sd_markdown_new(0xfff, 16, callbacks, options)
 
-   local outbuf = ffi.new('struct sd_buf')
-   outbuf.data = nil
-   outbuf.size = 0
-   outbuf.asize = 0
-   outbuf.unit = 64
-
+   local outbuf = C.sd_bufnew(64)
    C.sd_markdown_render(outbuf, ffi.cast('const char*', txt), #txt, markdown)
    C.sd_markdown_free(markdown)
+   txt = ffi.string(outbuf.data, outbuf.size)
+   C.sd_bufrelease(outbuf)
 
-   return ffi.string(outbuf.data, outbuf.size)
+   return txt
 end
 
 return {render=render}