git: aa9f97af93fc - main - tests/unix_dgram: account for size of sender address in the filling cycle

The branch main has been updated by glebius:

URL: https://cgit.FreeBSD.org/src/commit/?id=aa9f97af93fc9df5596654fc11f2720878c81e1a

commit aa9f97af93fc9df5596654fc11f2720878c81e1a
Author:     Gleb Smirnoff <glebius@FreeBSD.org>
AuthorDate: 2022-05-17 02:04:02 +0000
Commit:     Gleb Smirnoff <glebius@FreeBSD.org>
CommitDate: 2022-05-17 02:08:21 +0000

    tests/unix_dgram: account for size of sender address in the filling cycle
    
    This fixes test failure with large net.local.dgram.recvspace values.
---
 tests/sys/kern/unix_dgram.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tests/sys/kern/unix_dgram.c b/tests/sys/kern/unix_dgram.c
index 66a9ab6092ee..4bcb84587f46 100644
--- a/tests/sys/kern/unix_dgram.c
+++ b/tests/sys/kern/unix_dgram.c
@@ -54,6 +54,9 @@ static struct sigaction sigact = {
 
 /*
  * Fill socket to a state when next send(len) would fail.
+ *
+ * Note that every datagram is prepended with sender address,
+ * size of struct sockaddr.
  */
 static void
 fill(int fd, void *buf, ssize_t len)
@@ -64,7 +67,9 @@ fill(int fd, void *buf, ssize_t len)
 
 	ATF_REQUIRE(sysctlbyname("net.local.dgram.recvspace", &recvspace,
 	    &llen, NULL, 0) == 0);
-	for (sent = 0; sent + len < (ssize_t)recvspace; sent += len)
+	for (sent = 0;
+	    sent + len + sizeof(struct sockaddr) < recvspace;
+	    sent += len + sizeof(struct sockaddr))
 		ATF_REQUIRE(send(fd, buf, len, 0) == len);
 }