From: Alejandro Colomar <alx@kernel.org>
Date: Mon, 1 Dec 2025 10:44:44 +0000 (+0100)
Subject: man/man2const/{IPPROTO_IPV6,IPV6_ADDRFORM}.2const: Split IPV6_ADDRFORM from IPPROTO_I... 
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9ed37a599cc5a389e5cb438fc75e4b18e31423e7;p=thirdparty%2Fman-pages.git

man/man2const/{IPPROTO_IPV6,IPV6_ADDRFORM}.2const: Split IPV6_ADDRFORM from IPPROTO_IPV6(2const)

Signed-off-by: Alejandro Colomar <alx@kernel.org>
---

diff --git a/man/man2const/IPPROTO_IPV6.2const b/man/man2const/IPPROTO_IPV6.2const
index ad5f5aa8f..fc8f3d11c 100644
--- a/man/man2const/IPPROTO_IPV6.2const
+++ b/man/man2const/IPPROTO_IPV6.2const
@@ -105,19 +105,7 @@ A boolean integer flag is zero when it is false, otherwise true.
 .P
 The following socket options are supported.
 .TP
-.B IPV6_ADDRFORM
-Turn an
-.B AF_INET6
-socket into a socket of a different address family.
-Only
-.B AF_INET
-is currently supported for that.
-It is allowed only for IPv6 sockets
-that are connected and bound to a v4-mapped-on-v6 address.
-The argument is a pointer to an integer containing
-.BR AF_INET .
-This is useful to pass v4-mapped sockets as file descriptors to
-programs that don't know how to deal with the IPv6 API.
+.BR IPV6_ADDRFORM (2const)
 .TP
 .B IPV6_ADD_MEMBERSHIP, IPV6_DROP_MEMBERSHIP
 Control membership in multicast groups.
diff --git a/man/man2const/IPV6_ADDRFORM.2const b/man/man2const/IPV6_ADDRFORM.2const
new file mode 100644
index 000000000..45901d4ed
--- /dev/null
+++ b/man/man2const/IPV6_ADDRFORM.2const
@@ -0,0 +1,44 @@
+.\" Copyright, the authors of the Linux man-pages project
+.\"
+.\" SPDX-License-Identifier: Linux-man-pages-copyleft
+.\"
+.TH IPV6_ADDRFORM 2const (date) "Linux man-pages (unreleased)"
+.SH NAME
+IPV6_ADDRFORM
+\-
+turn an AF_INET6 socket into a socket of a different address family
+.SH LIBRARY
+Standard C library
+.RI ( libc ,\~ \-lc )
+.SH SYNOPSIS
+.nf
+.BR "#include <netinet/in.h>" "  /* Definition of " IP* " constants */"
+.B #include <sys/socket.h>
+.P
+.BI int\~setsockopt(int\~ sockfd ,\~IPPROTO_IPV6,\~IPV6_ADDRFORM,
+.B "               &(const\~int){AF_INET},\~sizeof(int));"
+.fi
+.SH DESCRIPTION
+.TP
+.B IPV6_ADDRFORM
+Turn an
+.B AF_INET6
+socket into a socket of a different address family.
+Only
+.B AF_INET
+is currently supported for that.
+It is allowed only for IPv6 sockets
+that are connected and bound to a v4-mapped-on-v6 address.
+The argument is a pointer to an integer containing
+.BR AF_INET .
+This is useful to pass v4-mapped sockets as file descriptors to
+programs that don't know how to deal with the IPv6 API.
+.SH ERRORS
+See
+.BR setsockopt (2).
+See
+.BR ipv6 (7).
+.SH SEE ALSO
+.BR IPPROTO_IPV6 (2const),
+.BR setsockopt (2),
+.BR ipv6 (7)