void a_netbuf_free(void *bufPtr);
void *a_netbuf_to_data(void *bufPtr);
A_UINT32 a_netbuf_to_len(void *bufPtr);
-A_STATUS a_netbuf_push(void *bufPtr, A_INT32 len);
-A_STATUS a_netbuf_push_data(void *bufPtr, char *srcPtr, A_INT32 len);
-A_STATUS a_netbuf_put(void *bufPtr, A_INT32 len);
-A_STATUS a_netbuf_put_data(void *bufPtr, char *srcPtr, A_INT32 len);
-A_STATUS a_netbuf_pull(void *bufPtr, A_INT32 len);
-A_STATUS a_netbuf_pull_data(void *bufPtr, char *dstPtr, A_INT32 len);
-A_STATUS a_netbuf_trim(void *bufPtr, A_INT32 len);
-A_STATUS a_netbuf_trim_data(void *bufPtr, char *dstPtr, A_INT32 len);
-A_STATUS a_netbuf_setlen(void *bufPtr, A_INT32 len);
+int a_netbuf_push(void *bufPtr, A_INT32 len);
+int a_netbuf_push_data(void *bufPtr, char *srcPtr, A_INT32 len);
+int a_netbuf_put(void *bufPtr, A_INT32 len);
+int a_netbuf_put_data(void *bufPtr, char *srcPtr, A_INT32 len);
+int a_netbuf_pull(void *bufPtr, A_INT32 len);
+int a_netbuf_pull_data(void *bufPtr, char *dstPtr, A_INT32 len);
+int a_netbuf_trim(void *bufPtr, A_INT32 len);
+int a_netbuf_trim_data(void *bufPtr, char *dstPtr, A_INT32 len);
+int a_netbuf_setlen(void *bufPtr, A_INT32 len);
A_INT32 a_netbuf_headroom(void *bufPtr);
void a_netbuf_enqueue(A_NETBUF_QUEUE_T *q, void *pkt);
void a_netbuf_prequeue(A_NETBUF_QUEUE_T *q, void *pkt);