Re: + uml-make-execvp-safe-for-our-usage.patch added to -mm tree

From: Andrew Morton
Date: Fri Nov 24 2006 - 16:46:51 EST


On Fri, 24 Nov 2006 14:50:11 -0500
Jeff Dike <jdike@xxxxxxxxxxx> wrote:

> On Tue, Oct 17, 2006 at 05:14:35PM -0700, akpm@xxxxxxxx wrote:
> > The patch titled
> >
> > uml: make execvp safe for our usage
> >
> > has been added to the -mm tree. Its filename is
> >
> > uml-make-execvp-safe-for-our-usage.patch
> >
>
> I had previously objected to this patch on grounds of taste. Since
> this fixes a number of problems, and I don't have any solutions which
> are huge improvements, I withdraw those objections.
>
> Feel free to send to Linus.

OK. Is it needed for 2.6.19?

Also, I'm still sitting on the below. I have a note that you nacked it,
but I forget why.


From: Paolo 'Blaisorblade' Giarrusso <blaisorblade@xxxxxxxx>

Fix prototypes in user.h - was needed when including user.h in kernelspace, as
we did in previous patch.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@xxxxxxxx>
Cc: Jeff Dike <jdike@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---

arch/um/include/user.h | 9 ++++++---
1 files changed, 6 insertions(+), 3 deletions(-)

diff -puN arch/um/include/user.h~uml-fix-prototypes arch/um/include/user.h
--- a/arch/um/include/user.h~uml-fix-prototypes
+++ a/arch/um/include/user.h
@@ -6,6 +6,10 @@
#ifndef __USER_H__
#define __USER_H__

+/* Both on kernelspace and userspace this will provide the size_t definition. It should, at
+ * least. But on userspace it won't hurt surely. */
+#include <linux/types.h>
+
extern void panic(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
extern int printk(const char *fmt, ...)
@@ -13,9 +17,8 @@ extern int printk(const char *fmt, ...)
extern void schedule(void);
extern int in_aton(char *str);
extern int open_gdb_chan(void);
-/* These use size_t, however unsigned long is correct on both i386 and x86_64. */
-extern unsigned long strlcpy(char *, const char *, unsigned long);
-extern unsigned long strlcat(char *, const char *, unsigned long);
+extern size_t strlcpy(char *, const char *, size_t);
+extern size_t strlcat(char *, const char *, size_t);

#endif

_

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