libunit-wasm: Fix rust build

The rust build failed when trying to publish new crates, although for
some reason it didn't fail before that, due to the luw_srb_flags_t enums
generated by bindgen being 32 bit unsigned integers and the flags
argument to luw_set_req_buf() being an unsigned long (which is 64 bits
on my system) and thus producing a type mismatch error.

Rather than fight with rust just make the flags argument an unsigned
int, 32 bits is more than enough for this anyway.

Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/c/libunit-wasm.c b/src/c/libunit-wasm.c
index 39cda22..8cea78a 100644
--- a/src/c/libunit-wasm.c
+++ b/src/c/libunit-wasm.c
@@ -110,7 +110,7 @@ void luw_init_ctx(luw_ctx_t *ctx, u8 *addr, size_t offset)
  *			  allocate memory for the _entire_ request that
  *			  will eventually be sent.
  */
-int luw_set_req_buf(luw_ctx_t *ctx, u8 **buf, unsigned long flags)
+int luw_set_req_buf(luw_ctx_t *ctx, u8 **buf, unsigned int flags)
 {
 	size_t alloc_size;
 	size_t copy_bytes;