Matt Whitlock wrote:
On Tuesday, 25 March 2014, at 10:52 pm, Cristian Ionescu-Idbohrn wrote:
I find out that using that option:
-x hostname:foo
^
shows up in /proc/pid/cmdline as:
-x hostname foo
^
/proc/pid/cmdline reflects any changes
On Mit, 2014-03-26 at 10:01 +0100, Ralf Friedl wrote:
[]
But the /proc/pid/cmdline interface doesn't convert null bytes to
spaces. Doing so would lose information. Some programs may choose to do
this conversion, but programs reading cmdline must be prepared for null
bytes anyway.
hex
On Wed, 26 Mar 2014, Ralf Friedl wrote:
Matt Whitlock wrote:
On Tuesday, 25 March 2014, at 10:52 pm, Cristian Ionescu-Idbohrn wrote:
I find out that using that option:
-x hostname:foo
^
shows up in /proc/pid/cmdline as:
-x hostname foo
^
On Wednesday, 26 March 2014, at 12:46 pm, Cristian Ionescu-Idbohrn wrote:
Is it possible to restrain from modifying the arguments for the
command line? The problem is that the process watcher used here is
dependant on having the original/unmodified /proc/pid/cmdline. If
the watched process
On Wed, 26 Mar 2014, Matt Whitlock wrote:
On Wednesday, 26 March 2014, at 12:46 pm, Cristian Ionescu-Idbohrn wrote:
Is it possible to restrain from modifying the arguments for the
command line? The problem is that the process watcher used here
is dependant on having the original/unmodified
On Wednesday, 26 March 2014, at 1:19 pm, Cristian Ionescu-Idbohrn wrote:
But really, this is not an `init' question, as I see it. It's about
keeping the original/unmodified program arguments in
/proc/pid/cmdline.
I know of no other program doing such sort of thing, although I think
I
On Wed, 26 Mar 2014, Matt Whitlock wrote:
On Wednesday, 26 March 2014, at 1:19 pm, Cristian Ionescu-Idbohrn wrote:
But really, this is not an `init' question, as I see it. It's
about keeping the original/unmodified program arguments in
/proc/pid/cmdline.
I know of no other program
On Wednesday, 26 March 2014, at 1:38 pm, Cristian Ionescu-Idbohrn wrote:
On Wed, 26 Mar 2014, Matt Whitlock wrote:
Tons of programs modify their argv arrays.
Alright, you know better.
It's common for programs that accept sensitive information (such as passwords)
via command-line arguments
On Wed, Mar 26, 2014 at 12:46 PM, Cristian Ionescu-Idbohrn
cristian.ionescu-idbo...@axis.com wrote:
My guess is also that udhcpcd does something like
strchr(hostname, ':') = '\0';
I was suspecting something like that, but had difficulties to locate
where in the code that is being done.
On Wed, 26 Mar 2014, Denys Vlasenko wrote:
On Wed, Mar 26, 2014 at 12:46 PM, Cristian Ionescu-Idbohrn
cristian.ionescu-idbo...@axis.com wrote:
My guess is also that udhcpcd does something like
strchr(hostname, ':') = '\0';
I was suspecting something like that, but had difficulties
On Wed, Mar 26, 2014 at 2:13 PM, Cristian Ionescu-Idbohrn
cristian.ionescu-idbo...@axis.com wrote:
On Wed, 26 Mar 2014, Denys Vlasenko wrote:
On Wed, Mar 26, 2014 at 12:46 PM, Cristian Ionescu-Idbohrn
cristian.ionescu-idbo...@axis.com wrote:
My guess is also that udhcpcd does something like
Hi,
As I've written in a previous message, I know nothing of such other
programs, but I'd be intrested to learn more.
Modifying argv[] has been around since V6 unix to my knowledge.
Some games used to modify it so other users could see your score
via ps etc. Some programs even had
Yes, there's still much to learn. Do you happen to know of some
popular examples?
A lot of long-running processes that spawn several children and assign
different tasks to them will do this, for informative purposes.
(I personally think that the argv of a process is not the right place
for
On 03/26/2014 09:13 AM, Cristian Ionescu-Idbohrn wrote:
On Wed, 26 Mar 2014, Denys Vlasenko wrote:
But how that respawn tool going to work with other programs?
As I've written in a previous message, I know nothing of such other
programs, but I'd be intrested to learn more.
There is no
A big thanks to all of you guys. I now feel enlightened :)
On Wed, 26 Mar 2014, Laurent Bercot wrote:
Just off the top of my head:
Now that you write it down:
sshd (from openssh)
I realize I knew about this one, all along.
avahi-daemon
dovecot
and even among the good guys:
On Wed, 26 Mar 2014, Michael Conrad wrote:
All mysql utilities overwrite passwords in cmdline as a security measure.
http://dev.mysql.com/doc/refman/5.1/en/password-security-user.html
Well, I recently learned there's some effort put in the linux kernel
to help with that sort of thing. See:
This long predates Linux. Some small
percentage of programs rely upon being
able to modify the argv array. This
is especially valuable to programs
that fork heavily but that do not exec.
The individual tines may thus be labeled
with their roles so that they can be
identified in ps, for example.
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