1 files changed, 21 insertions, 0 deletions
diff --git a/slirp/util.h b/slirp/util.h
index ef75804560..4963747aef 100644
--- a/slirp/util.h
+++ b/slirp/util.h
@@ -48,6 +48,27 @@
 # define SLIRP_PACKED __attribute__((packed))
 #endif
 
+#ifndef DIV_ROUND_UP
+#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
+#endif
+
+#ifndef container_of
+#define container_of(ptr, type, member) __extension__ ({    \
+    void *__mptr = (void *)(ptr);               \
+    ((type *)(__mptr - offsetof(type, member))); })
+#endif
+
+#if defined(_WIN32) /* CONFIG_IOVEC */
+# if !defined(IOV_MAX) /* XXX: to avoid duplicate with QEMU osdep.h */
+struct iovec {
+    void *iov_base;
+    size_t iov_len;
+};
+# endif
+#else
+#include <sys/uio.h>
+#endif
+
 #define SCALE_MS 1000000
 
 #define ETH_ALEN    6