diff options
Diffstat (limited to 'lib/libc/gen/getdomainname.3')
| -rw-r--r-- | lib/libc/gen/getdomainname.3 | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/libc/gen/getdomainname.3 b/lib/libc/gen/getdomainname.3 index 42c620c1ed1..fe4d944c3a7 100644 --- a/lib/libc/gen/getdomainname.3 +++ b/lib/libc/gen/getdomainname.3 @@ -1,4 +1,4 @@ -.\" $OpenBSD: getdomainname.3,v 1.5 1998/05/13 08:50:54 deraadt Exp $ +.\" $OpenBSD: getdomainname.3,v 1.6 1998/07/07 07:12:52 deraadt Exp $ .\" .\" Copyright (c) 1983, 1991, 1993 .\" The Regents of the University of California. All rights reserved. @@ -53,8 +53,8 @@ The parameter .Fa namelen specifies the size of the .Fa name -array. The returned name is null-terminated unless insufficient -space is provided. +array. If insufficient space is provided, the returned name is truncated. +The returned name is always null-terminated. .Pp .Fn Setdomainname sets the domain name of the host machine to be @@ -92,7 +92,11 @@ Domain names are limited to .Dv MAXHOSTNAMELEN (from .Ao Pa sys/param.h Ac ) -characters, currently 256. +characters, currently 256. This includes the terminating NUL character. +.Pp +If the buffer passed to +.Fn getdomainname +is too small, other operating systems may not gaurantee termination with NUL. .Sh HISTORY The .Nm |