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-rw-r--r--zebra/kernel_socket.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/zebra/kernel_socket.c b/zebra/kernel_socket.c
index b7061e76..ecc6e790 100644
--- a/zebra/kernel_socket.c
+++ b/zebra/kernel_socket.c
@@ -48,9 +48,15 @@ extern struct zebra_t zebrad;
* XXX: why is ROUNDUP(0) sizeof(long)? 0 is an illegal sockaddr
* length anyway (< sizeof (struct sockaddr)), so this shouldn't
* matter.
+ * On OS X, both 32, 64bit syatems align on 4 byte boundary
*/
+#ifdef __APPLE__
+#define ROUNDUP(a) \
+ ((a) > 0 ? (1 + (((a) - 1) | (sizeof(int) - 1))) : sizeof(int))
+#else
#define ROUNDUP(a) \
((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
+#endif
/*
* Given a pointer (sockaddr or void *), return the number of bytes