linux-kernel - [PATCH] Make new_utsname fields use the proper length constant

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Message-Id: <1239988696-18140-1-git-send-email-danms@us.ibm.com>
Date:	Fri, 17 Apr 2009 10:18:16 -0700
From:	Dan Smith <danms@...ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	containers@...ts.linux-foundation.org, akpm@...ux-foundation.org,
	serue@...ibm.com
Subject: [PATCH] Make new_utsname fields use the proper length constant

The members of the new_utsname structure are defined with magic numbers
that *should* correspond to the constant __NEW_UTS_LEN+1.  Everywhere else,
code assumes this and uses the constant, so this patch makes the structure
match.

Originally suggested by Serge here:

https://lists.linux-foundation.org/pipermail/containers/2009-March/016258.html

Signed-off-by: Dan Smith <danms@...ibm.com>
Cc: containers@...ts.linux-foundation.org
Cc: akpm@...ux-foundation.org
Cc: serue@...ibm.com
---
 include/linux/utsname.h |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/linux/utsname.h b/include/linux/utsname.h
index 1123267..3656b30 100644
--- a/include/linux/utsname.h
+++ b/include/linux/utsname.h
@@ -22,12 +22,12 @@ struct old_utsname {
 };
 
 struct new_utsname {
-	char sysname[65];
-	char nodename[65];
-	char release[65];
-	char version[65];
-	char machine[65];
-	char domainname[65];
+	char sysname[__NEW_UTS_LEN + 1];
+	char nodename[__NEW_UTS_LEN + 1];
+	char release[__NEW_UTS_LEN + 1];
+	char version[__NEW_UTS_LEN + 1];
+	char machine[__NEW_UTS_LEN + 1];
+	char domainname[__NEW_UTS_LEN + 1];
 };
 
 #ifdef __KERNEL__
-- 
1.5.6.3

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