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authorjca <jca@openbsd.org>2020-04-25 16:23:59 +0000
committerjca <jca@openbsd.org>2020-04-25 16:23:59 +0000
commit5659aa878a66e4755bca3c411e0e776e238ce2af (patch)
tree5d373f25c6142dad18eeb7da7c4b332e099408d4 /lib/libc
parentEnable dsxrtc(4) and pcfrtc(4). (diff)
downloadwireguard-openbsd-5659aa878a66e4755bca3c411e0e776e238ce2af.tar.xz
wireguard-openbsd-5659aa878a66e4755bca3c411e0e776e238ce2af.zip
Discourage use of RES_USE_INET6
Suggested by eric@, input from deraadt@, ok deraadt@ eric@
Diffstat (limited to 'lib/libc')
-rw-r--r--lib/libc/net/res_init.36
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/libc/net/res_init.3 b/lib/libc/net/res_init.3
index f9f13cf4f90..6b15b675b1b 100644
--- a/lib/libc/net/res_init.3
+++ b/lib/libc/net/res_init.3
@@ -1,4 +1,4 @@
-.\" $OpenBSD: res_init.3,v 1.2 2020/04/25 14:30:05 jca Exp $
+.\" $OpenBSD: res_init.3,v 1.3 2020/04/25 16:23:59 jca Exp $
.\"
.\" Copyright (c) 1985, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
@@ -183,6 +183,10 @@ feature.
With this option
.Xr gethostbyname 3
will return IPv6 addresses if available.
+This option is deprecated, software should use the
+.Xr getaddrinfo 3
+interface instead of modifying the behavior of
+.Xr gethostbyname 3 .
On some operating systems this option also causes IPv4 addresses to be
returned as IPv4-mapped IPv6 addresses.
For example, 10.1.1.1 will be returned as ::ffff:10.1.1.1.