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Fix two off-by-one errors.

This commit is contained in:
mycroft 1995-01-09 17:36:48 +00:00
parent 820f9da835
commit 3d869b0608
1 changed files with 3 additions and 3 deletions
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6
sys/vm/vm_mmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: vm_mmap.c,v 1.36 1994/12/10 11:48:12 pk Exp $ */
/* $NetBSD: vm_mmap.c,v 1.37 1995/01/09 17:36:48 mycroft Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@ -248,7 +248,7 @@ mmap(p, uap, retval)
if (addr & PAGE_MASK)
return (EINVAL);
/* Address range must be all in user VM space. */
if (VM_MAXUSER_ADDRESS > 0 && addr + size >= VM_MAXUSER_ADDRESS)
if (VM_MAXUSER_ADDRESS > 0 && addr + size > VM_MAXUSER_ADDRESS)
return (EINVAL);
if (VM_MIN_ADDRESS > 0 && addr < VM_MIN_ADDRESS)
return (EINVAL);
@ -454,7 +454,7 @@ munmap(p, uap, retval)
* Check for illegal addresses. Watch out for address wrap...
* Note that VM_*_ADDRESS are not constants due to casts (argh).
*/
if (VM_MAXUSER_ADDRESS > 0 && addr + size >= VM_MAXUSER_ADDRESS)
if (VM_MAXUSER_ADDRESS > 0 && addr + size > VM_MAXUSER_ADDRESS)
return (EINVAL);
if (VM_MIN_ADDRESS > 0 && addr < VM_MIN_ADDRESS)
return (EINVAL);