commit bee0a9e34b2c6fe77faf0c10b8f29a9d6cac611b
from: Omar Polo <op@omarpolo.com>
date: Wed Feb 02 14:32:11 2022 UTC

stat: fix `mode' format

Select only the lower two and set the correct bit for directory entries.
While the lower two bytes seems to behave just as on UNIX, the upper
ones don't (at least on OpenBSD.)

commit - 17ea8246621a62d02fe0fba9266d5e3d916cca1c
commit + bee0a9e34b2c6fe77faf0c10b8f29a9d6cac611b
blob - a8396245e632897fe7177081b9411928e1b6c680
blob + fe426ae46c73966411795d28423d47f5a8967587
--- kamid/client.c
+++ kamid/client.c
@@ -1420,6 +1420,7 @@ serialize_stat(const char *fname, struct stat *sb, str
 	struct qid	 qid;
 	const char	*uid, *gid, *muid;
 	size_t		 tot;
+	uint32_t	 mode;
 	uint16_t	 namlen, uidlen, gidlen, ulen;
 
 	qid_update_from_sb(&qid, sb);
@@ -1440,15 +1441,16 @@ serialize_stat(const char *fname, struct stat *sb, str
 		    fname);
 		return -1;
 	}
+
+	mode = sb->st_mode & 0xFFFF;
+	if (qid.type & QTDIR)
+		mode |= 0x80000000;
 
 	np_write16(evb, tot);			/*	size[2]		*/
 	np_write16(evb, sb->st_rdev);		/*	type[2]		*/
 	np_write32(evb, sb->st_dev);		/*	dev[4]		*/
 	np_qid(evb, &qid);			/*	qid[13]		*/
-
-	/* XXX: translate? */
-	np_write32(evb, sb->st_mode);		/*	mode[4]		*/
-
+	np_write32(evb, mode);			/*	mode[4]		*/
 	np_write32(evb, sb->st_atim.tv_sec);	/*	atime[4]	*/
 	np_write32(evb, sb->st_mtim.tv_sec);	/*	mtime[4]	*/