[PATCH 1/8] man/man7/socket.7: SO_PEEK_OFF: This option is no longer specific to unix(7)

["Günther Noack" <gnoack3000@gmail.com>]

The option is implemented through proto_ops->set_peek_off, which is
nowadays also set for UDP and TCP sockets:

	linux.git 627d2d6b5500 (2016-04-05; "udp: enable MSG_PEEK at non-zero offset")
		Linux 4.7, UDP over IPv4 and IPv6
	linux.git 05ea491641d3 (2024-04-11; "tcp: add support for SO_PEEK_OFF socket option")
		Linux 6.10, TCP over IPv4
	linux.git be9a4fb831b8 (2024-08-29; "tcp: add SO_PEEK_OFF socket option tor TCPv6")
		Linux 6.12, TCP over IPv6

Cc: Jon Maloy <jmaloy@redhat.com>
Cc: samanthakumar <samanthakumar@google.com>
Cc: Kuniyuki Iwashima <kuniyu@google.com>
Assisted-by: LLM
Signed-off-by: Günther Noack <gnoack3000@gmail.com>
---

Notes:
    Double checked in code -- this feature has been added to these other
    protocols since that man page section was written; I made sure that we
    have all relevant commits listed as comments in the man page source.

 man/man7/socket.7 | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/man/man7/socket.7 b/man/man7/socket.7
index 96f6f173a40b..ebe0264d7ae4 100644
--- a/man/man7/socket.7
+++ b/man/man7/socket.7
@@ -662,14 +662,24 @@ For more information, see
 .TP
 .BR SO_PEEK_OFF " (since Linux 3.4)"
 .\" commit ef64a54f6e558155b4f149bb10666b9e914b6c54
-This option, which is currently supported only for
-.BR unix (7)
-sockets, sets the value of the "peek offset" for the
+This option sets the value of the "peek offset" for the
 .BR recv (2)
 system call when used with
 .B MSG_PEEK
 flag.
 .IP
+This option is supported for
+.\" commit f55bb7f9cb82dec2f2e803d7bd0fc5929248e4d8
+.BR unix (7)
+sockets since Linux 3.4,
+.\" commit 627d2d6b550094d88f9e518e15967e7bf906ebbf
+for UDP sockets since Linux 4.7,
+and for TCP sockets since
+.\" commit 05ea491641d338422edbd87af3b311c16ea762f5
+Linux 6.10 (IPv4) and
+.\" commit be9a4fb831b8b6dc5724dd3e61973ea91b413ec1
+Linux 6.12 (IPv6).
+.IP
 When this option is set to a negative value
 (it is set to \-1 for all new sockets),
 traditional behavior is provided:
-- 
2.56.0