linux-kernel - Re: [PATCH] PPC: in celleb_show_cpuinfo() convert strncpy(x, y, sizeof(x)) to strlcpy

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Message-ID: <47CFEF82.10709@tiscali.nl>
Date:	Thu, 06 Mar 2008 14:20:02 +0100
From:	Roel Kluin <12o3l@...cali.nl>
To:	paulus@...ba.org, arnd@...db.de
CC:	linuxppc-dev@...abs.org, lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] PPC: in celleb_show_cpuinfo() convert strncpy(x, y, sizeof(x))
 to strlcpy

Roel Kluin wrote:
> This patch was not yet tested. Please confirm it's right.

was too quick with the send button. the batch below is probably better
---
strncpy does not append '\0' if the length of the source string equals
the size parameter, strlcpy does.

Signed-off-by: Roel Kluin <12o3l@...cali.nl>
---
diff --git a/arch/powerpc/platforms/celleb/setup.c b/arch/powerpc/platforms/celleb/setup.c
index f27ae1e..cbe09d9 100644
--- a/arch/powerpc/platforms/celleb/setup.c
+++ b/arch/powerpc/platforms/celleb/setup.c
@@ -81,8 +81,7 @@ static void celleb_show_cpuinfo(struct seq_file *m)
 
 static int __init celleb_machine_type_hack(char *ptr)
 {
-	strncpy(celleb_machine_type, ptr, sizeof(celleb_machine_type));
-	celleb_machine_type[sizeof(celleb_machine_type)-1] = 0;
+	strlcpy(celleb_machine_type, ptr, sizeof(celleb_machine_type));
 	return 0;
 }
 
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