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From: mischief <mischief@offblast.org>
To: 9front@9front.org
Subject: [PATCH 4 of 8] cwfs: use IOUNIT as MAXDAT, fix Msgbuf count overflow when MAXDAT > 2^15-1
Date: Sun, 23 Aug 2015 16:49:14 -0700	[thread overview]
Message-ID: <b7929f69bbb7120db590.1440373754@delta> (raw)
In-Reply-To: <patchbomb.1440373750@delta>

# HG changeset patch
# User mischief <mischief@offblast.org>
# Date 1440366687 25200
#      Sun Aug 23 14:51:27 2015 -0700
# Node ID b7929f69bbb7120db5900fe38f717ccb433345fa
# Parent  59420710e4e3a510c41f6c7d4047a144d5491b42
cwfs: use IOUNIT as MAXDAT, fix Msgbuf count overflow when MAXDAT > 2^15-1

diff -r 59420710e4e3 -r b7929f69bbb7 sys/src/cmd/cwfs/portdat.h
--- a/sys/src/cmd/cwfs/portdat.h	Sun Aug 23 14:51:27 2015 -0700
+++ b/sys/src/cmd/cwfs/portdat.h	Sun Aug 23 14:51:27 2015 -0700
@@ -26,7 +26,7 @@
 
 /* constants that don't affect disk layout */
 enum {
-	MAXDAT		= 8192,		/* max allowable data message */
+	MAXDAT		= IOUNIT,	/* max allowable data message */
 	MAXMSG		= 128,		/* max protocol message sans data */
 
 	MB		= 1024*1024,
@@ -459,7 +459,7 @@
 struct	Msgbuf
 {
 	ulong	magic;
-	short	count;
+	int	count;
 	short	flags;
 		#define	LARGE	(1<<0)
 		#define	FREE	(1<<1)


  parent reply	other threads:[~2015-08-23 23:50 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-23 23:49 [PATCH 0 of 8] 48k iounit mischief
2015-08-23 23:49 ` [PATCH 1 of 8] devmnt: set MAXRPC to IOHDRSZ+48K mischief
2015-08-23 23:49 ` [PATCH 2 of 8] libc: define default IOUNIT as 48K mischief
2015-08-23 23:49 ` mischief [this message]
2015-08-23 23:49 ` [PATCH 5 of 8] dossrv: set buffer size to IOUNIT mischief
2015-08-23 23:49 ` [PATCH 6 of 8] mv: use iounit for reads mischief
2015-08-24  0:01   ` [9front] " Iruatã Souza
2015-08-24  0:03     ` Nick Owens
2015-08-23 23:49 ` [PATCH 7 of 8] tee: " mischief
2015-08-23 23:49 ` [PATCH 8 of 8] tput: use iounit for reads, check sbrk return value mischief

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