commit e7d185f59e50afb0b1d9105f7d426584167be0f0
author Elliott Hughes <enh@google.com> Wed Jun 27 13:30:02 2018 -0700
committer Elliott Hughes <enh@google.com> Wed Jun 27 14:08:48 2018 -0700
tree ad2bac24da7280235bfa65bc315c14b58cc86664
parent e5a5eec5e588957aba2582ef25795bb3b573669f

<sys/un.h>: add SUN_LEN.

Also used by lldb.

Bug: N/A
Test: ran tests
Change-Id: I4c2aa60e7a3d8c691742c12ebde142d9438bf60f

libc/include/sys/un.h

diff --git a/libc/include/sys/un.h b/libc/include/sys/un.h
index 3e1c429..03ef5e4 100644
--- a/libc/include/sys/un.h
+++ b/libc/include/sys/un.h
@@ -33,4 +33,9 @@
 #include <linux/un.h>
 #include <sys/cdefs.h>
 
+#if defined(__USE_BSD) || defined(__USE_GNU)
+#include <string.h>
+#define SUN_LEN(__ptr) (offsetof(struct sockaddr_un, sun_path) + strlen((__ptr)->sun_path))
+#endif
+
 #endif