diff options
Diffstat (limited to 'lib/libc/gen/gethostname.3')
| -rw-r--r-- | lib/libc/gen/gethostname.3 | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/lib/libc/gen/gethostname.3 b/lib/libc/gen/gethostname.3 index 881ba586e92..32b46fb9e1e 100644 --- a/lib/libc/gen/gethostname.3 +++ b/lib/libc/gen/gethostname.3 @@ -1,4 +1,4 @@ -.\" $OpenBSD: gethostname.3,v 1.5 1998/05/13 08:50:56 deraadt Exp $ +.\" $OpenBSD: gethostname.3,v 1.6 1998/07/07 07:12:53 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 Sethostname sets the name of the host machine to be @@ -90,9 +90,20 @@ Host 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 smaller than +.Dv MAXHOSTNAMELEN , +other operating systems may not gaurantee termination with NUL. .Sh HISTORY The .Nm function call appeared in .Bx 4.2 . +.Sh STANDARDS +The +.Nm +function call conforms to +.St -xpg4.2 . |