Fill msg_len for the initial element of msgvec.

Submitted by: Daniel Salzman <daniel.salzman@nic.cz> MFC after: 3 days
svn path=/head/; revision=307036
2016-10-11 11:45:12 +00:00 · 2016-10-11 11:45:12 +00:00 · c3b83049d6 · 2020-12-20 02:59:44 +00:00
commit c3b83049d6
parent 4afe249835
1 changed files with 2 additions and 0 deletions
--- a/lib/libc/gen/recvmmsg.c
+++ b/lib/libc/gen/recvmmsg.c
@ -69,6 +69,8 @@ recvmmsg(int s, struct mmsghdr *__restrict msgvec, size_t vlen, int flags,
 	if (ret == -1)
 		return (ret);

+	msgvec[0].msg_len = ret;
+
 	/* 
 	 * Do non-blocking receive for second and later messages if
 	 * WAITFORONE is set.