commit f55ab68b8ccd0c8d7fe509f6949f6e65bf77c93b
from: Omar Polo <op@omarpolo.com>
date: Wed Jan 19 21:37:06 2022 UTC

9pclib: send size in wstat

This is the counterpart for the recent kamid commit about wstat: we're
lacking the leading size field.

commit - 9029ac6f3c1fa3e42c6fa231f8a45ed05d68b61e
commit + f55ab68b8ccd0c8d7fe509f6949f6e65bf77c93b
blob - d53ac475b40fa93e409221ea11b457252ba56a35
blob + 9394060b085ba279ba8f71506678bfb00c437df6
--- lib/9pclib.c
+++ lib/9pclib.c
@@ -251,20 +251,25 @@ void
 twstat(uint32_t fid, const struct np_stat *st)
 {
 	uint32_t	len;
+	uint16_t	stlen;
 
 	/* fid[4] stat[n] */
-	len = sizeof(fid) + NPSTATSIZ(0, 0, 0, 0);
+
+	stlen = NPSTATSIZ(0, 0, 0, 0);
 	if (st->name != NULL)
-		len += strlen(st->name);
+		stlen += strlen(st->name);
 	if (st->uid != NULL)
-		len += strlen(st->uid);
-	if (st->gid != NULL)
-		len += strlen(st->gid);
+		stlen += strlen(st->uid);
+	if (st->gid != NULL)
+		stlen += strlen(st->gid);
 	if (st->muid != NULL)
-		len += strlen(st->muid);
+		stlen += strlen(st->muid);
 
+	len = sizeof(fid) + sizeof(stlen) + stlen;
+
 	write_hdr_auto(len, Twstat);
 	write_fid(fid);
+	write_16(stlen);
 	write_16(st->type);
 	write_32(st->dev);