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-rw-r--r--lib/libc/sys/open.212
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/libc/sys/open.2 b/lib/libc/sys/open.2
index 02c0c8cb5e6..e8dedd86a54 100644
--- a/lib/libc/sys/open.2
+++ b/lib/libc/sys/open.2
@@ -1,4 +1,4 @@
-.\" $OpenBSD: open.2,v 1.19 2000/11/15 23:51:38 provos Exp $
+.\" $OpenBSD: open.2,v 1.20 2001/02/22 22:53:55 avsm Exp $
.\" $NetBSD: open.2,v 1.8 1995/02/27 12:35:14 cgd Exp $
.\"
.\" Copyright (c) 1980, 1991, 1993
@@ -321,6 +321,16 @@ and
.Dv O_NOFOLLOW
flags are non-standard extensions and should not be used if portability
is of concern.
+.Sh CAVEATS
+The
+.Dv O_TRUNC
+flag requires that
+.Dv O_RDWR
+or
+.Dv O_WRONLY
+are specified, or else
+.Dv EINVAL
+is returned.
.Sh HISTORY
An
.Fn open