svn commit: r363147 - head/lib/libc/gen
Gordon Bergling
gbe at FreeBSD.org
Mon Jul 13 15:17:30 UTC 2020
Author: gbe (doc committer)
Date: Mon Jul 13 15:17:29 2020
New Revision: 363147
URL: https://svnweb.freebsd.org/changeset/base/363147
Log:
gethostname(3): Correct the reference of the undefined value HOST_NAME_MAX
PR: 143472
Submitted by: bcran@
Reported by: Jeremy Huddleston <jeremyhu at apple dot com>
Reviewed by: bcr (mentor)
Approved by: bcr (mentor)
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D25647
Modified:
head/lib/libc/gen/gethostname.3
Modified: head/lib/libc/gen/gethostname.3
==============================================================================
--- head/lib/libc/gen/gethostname.3 Mon Jul 13 15:06:29 2020 (r363146)
+++ head/lib/libc/gen/gethostname.3 Mon Jul 13 15:17:29 2020 (r363147)
@@ -28,7 +28,7 @@
.\" @(#)gethostname.3 8.1 (Berkeley) 6/4/93
.\" $FreeBSD$
.\"
-.Dd August 18, 2003
+.Dd July 13, 2020
.Dt GETHOSTNAME 3
.Os
.Sh NAME
@@ -68,9 +68,9 @@ which has length
This call is restricted to the super-user and
is normally used only when the system is bootstrapped.
.Pp
-Host names are limited to
-.Brq Dv HOST_NAME_MAX
-characters, not including the trailing null, currently 255.
+Applications should use
+.Fn sysconf _SC_HOST_NAME_MAX
+to find the maximum length of a host name (not including the terminating null).
.Sh RETURN VALUES
.Rv -std
.Sh ERRORS
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