Free chunk/step user data on context free

So far, users had no way to free user-defined data allocated inside the
chunk/step function pointers whenever an error occurred.

Now, the free callback can be also used in conjunction with chunk/step,
so that user-defined data is now deallocated when the operation
finishes (in the case of chunk-encoded data) or an error occurs.

1 files changed, 1 insertions, 1 deletions

diff --git a/http.c b/http.c
index 21966bc..6410192 100644
--- a/http.c
+++ b/http.c
@@ -792,7 +792,7 @@ static int write_ctx_free(struct write_ctx *const w)
     const struct http_response *const r = &w->r;
 
     if (r->free)
-        r->free(r->buf.rw);
+        r->free(r->args ? r->args : r->buf.rw);
 
     if (r->f && (ret = fclose(r->f)))
         fprintf(stderr, "%s: fclose(3): %s\n", __func__, strerror(errno));