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-rw-r--r--sysdep/unix/unix.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/sysdep/unix/unix.h b/sysdep/unix/unix.h
index 5da925c..bb4d063 100644
--- a/sysdep/unix/unix.h
+++ b/sysdep/unix/unix.h
@@ -34,6 +34,10 @@ typedef struct sockaddr_in6 sockaddr;
typedef struct sockaddr_in sockaddr;
#endif
+#ifndef SUN_LEN
+#define SUN_LEN(ptr) ((size_t) (((struct sockaddr_un *) 0)->sun_path) + strlen ((ptr)->sun_path))
+#endif
+
struct birdsock;
void io_init(void);