From d81f73fcb520cff58dcafda0e644b91837b26a40 Mon Sep 17 00:00:00 2001
From: jhb <jhb@FreeBSD.org>
Date: Tue, 14 Jul 2009 19:45:36 +0000
Subject: - Change mmap() to fail requests with EINVAL that pass a length of 0.
  This   behavior is mandated by POSIX. - Do not fail requests that pass a
 length greater than SSIZE_MAX   (such as > 2GB on 32-bit platforms).  The
 'len' parameter is actually   an unsigned 'size_t' so negative values don't
 really make sense.

Submitted by:	Alexander Best  alexbestms at math.uni-muenster.de
Reviewed by:	alc
Approved by:	re (kib)
MFC after:	1 week
---
 lib/libc/sys/mmap.2 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'lib/libc')

diff --git a/lib/libc/sys/mmap.2 b/lib/libc/sys/mmap.2
index 196d6ae..91bf4e9 100644
--- a/lib/libc/sys/mmap.2
+++ b/lib/libc/sys/mmap.2
@@ -28,7 +28,7 @@
 .\"	@(#)mmap.2	8.4 (Berkeley) 5/11/95
 .\" $FreeBSD$
 .\"
-.Dd October 24, 2008
+.Dd July 14, 2009
 .Dt MMAP 2
 .Os
 .Sh NAME
@@ -306,7 +306,7 @@ resides out of the valid address space for a user process.
 The
 .Fa len
 argument
-was negative.
+was equal to zero.
 .It Bq Er EINVAL
 .Dv MAP_ANON
 was specified and the
-- 
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