The branch stable/14 has been updated by kbowling:
URL:
https://cgit.FreeBSD.org/src/commit/?id=99979f0eeb9381685c8b4601623a109235341016
commit 99979f0eeb9381685c8b4601623a109235341016
Author: Kevin Bowling <kbowl...@freebsd.org>
AuthorDate: 2024-11-25 18:32:35 +0000
Commit: Kevin Bowling <kbowl...@freebsd.org>
CommitDate: 2025-07-29 03:39:47 +0000
setsockopt.2: Clarify SO_SPLICE action
Reviewed by: gallatin, markj
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D47720
Co-authored-by: Mark Johnston <ma...@freebsd.org>
(cherry picked from commit c1e304c60c46a26af57f9638c53417dd6cffa9fe)
---
lib/libc/sys/getsockopt.2 | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/lib/libc/sys/getsockopt.2 b/lib/libc/sys/getsockopt.2
index c738a152d859..f36a9fe7baf8 100644
--- a/lib/libc/sys/getsockopt.2
+++ b/lib/libc/sys/getsockopt.2
@@ -570,9 +570,14 @@ struct so_splice {
.Pp
Data received on
.Fa s
-will automatically be transmitted from the socket specified in
+will automatically be transmitted via the socket specified in
.Fa sp_fd
without any intervention by userspace.
+That is, the data will be transmitted via
+.Fa sp_fd
+as if userspace had called
+.Xr send 2
+directly.
Splicing is a one-way operation; a given pair of sockets may be
spliced in one or both directions.
Currently only connected
