Re: [DNG] netman-autostart_0.1.1

[aitor_czr]

Hi Edward,

On 01/06/2016 08:10 AM, Edward Bartolo wrote:

Hi,

Since I received no replies I will attempt a manual edit of
netman-gui.postinst keeping debconf-41822e0-27.12.2015.patch as a
guide. Trying to persuade the patching software to accept the patch is
more likely to be time consuming, therefore, I am opting to do a
manual edit.

Edward


The changes in your Makefile are just applied, so Rainer's patch is not 
valid for you.


   Aitor.
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Re: [DNG] Giving Devuan sans-initramfs capabilities

[aitor_czr]

On 01/06/2016 10:10 AM, Daniel Reurich  wrote:

choosing configuration is the hard part.


You are right :)

-- Aitor.
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Re: [DNG] netman-autostart_0.1.1

[aitor_czr]

Hi Edward,

On 05/01/2016, Edward Bartolo  wrote:

Hi Aitor,

Sorry for taking so long to resume work on netman. At the moment I am
trying to apply your netman debconf patch. However, git apply --index
../aitor/debconf-41822e0-27.12.2015.patch is failing complaining that:

../aitor/debconf-41822e0-27.12.2015.patch:10: trailing whitespace.
#!/bin/sh -e
../aitor/debconf-41822e0-27.12.2015.patch:23: trailing whitespace.
. /usr/share/debconf/confmodule
../aitor/debconf-41822e0-27.12.2015.patch:33: trailing whitespace.
db_version 2.0
../aitor/debconf-41822e0-27.12.2015.patch:34: trailing whitespace.
#db_capb backup
../aitor/debconf-41822e0-27.12.2015.patch:35: trailing whitespace.
db_capb escape
error: patch failed: debian/netman-gui.postinst:1
error: debian/netman-gui.postinst: patch does not apply

What is wrong? I opened the patch with medit to view the offending
characters. In case understanding the cause of this issue an unjustied
long time, I can always apply the patch manually by editing text
directly.

Edward


 *trailing whitespace*

I think there are white spaces in the patch, instead of tab keys.

As Rainer said, copy 'n' paste is not always valid.

   Aitor.
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Re: [DNG] netman-autostart_0.1.1

[Svante Signell]

On Wed, 2016-01-06 at 12:22 +0100, aitor_czr wrote:
> Hi Edward,
> 
> 
> > What is wrong? I opened the patch with medit to view the offending
> > characters. In case understanding the cause of this issue an unjustied
> > long time, I can always apply the patch manually by editing text
> > directly.
> > 
> > Edward
> > 
>  *trailing whitespace*
> 
> I think there are white spaces in the patch, instead of tab keys.
> As Rainer said, copy 'n' paste is not always valid.

In emacs
-x
delete-trailing-whitespace
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Re: [DNG] PAM usage (Was: Giving Devuan sans-initramfs capabilities)

[karl]

Teodoro Santoni:
...
> I'm asking if someone use PAMs daily, because I suspect that I can
> answer "patch any kind of strange permission code away, everywhere"
> to the "how can I waste my time and work happily with Linux OSes
> installed on my pc without any trace of systemd code but have cups
> and other goodies?" question.

More like, how can I avoid things that people with good intentions push 
on me so I have to waste my time and work to work around it...

Avoids cups, don't give me anything than making the actual processing 
hidden and obscure.

> And was curious about your experience, hence the thread.

Soo, any conclutions ?

Regards,
/Karl Hammar

---
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S-742 94 Östhammar
Sweden
+46 173 140 57


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Re: [DNG] Giving Devuan sans-initramfs capabilities

[karl]

Daniel Reurich:
> On 06/01/16 07:55, k...@aspodata.se wrote:
> > Rainer Weikusat:
> > ...
> >> The sensible way to handle this is really "the distribution ships a
> >> kernel which optionally supports everything" (via aggressive
> >> modularization) and people who think they want/ need more control over
> >> this part of the system can change that as they see fit (by compiling a
> >> custom kernel). Insofar someone feels his custom kernel is of more
> >> general use than just "run on this machine", the configuration could be
> >> shared via internet. It's even failrly easy to share the kernel itself:
> >> I posted a script I've been using since 1998 to build kernels for
> >> different machines on a dedicated one and for someone who likes "shot
> >> from behind trough the chest right into the eye" constructions, there's
> >> always kernel-package for creating custom-kernel Debian packages.
> > 
> > Building the kernel is easy, tools are provided (later kernels have a 
> > deb-pkg target), choosing configuration is the hard part.
> > 
> > Would it be sensible for devuan to set up a user contrib site where one 
> > can upload kerlnels and or configs, together with reasons why that 
> > config is choosen ?
> > 
> Sure, how about talk.devuan.org

kernel.devuan.org ?

Though it will depend of if and who will set it up.

Regards,
/Karl Hammar

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Re: [DNG] Giving Devuan sans-initramfs capabilities

[karl]

Aitor:
> On 01/06/2016 10:10 AM, Daniel Reurich  wrote:
> > choosing configuration is the hard part.
> You are right :)

So then, it's there we should share our knowledge.

Regards,
/Karl Hammar

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[DNG] Netman debugging of installation scripts.

[Edward Bartolo]

Hi Aitor,

I 'git pushed' all my remaining local commits to netman. For an
ordinary installation involving autostarting and autoconnecting,
netman works as intended. However, using dpkg-reconfigure netman-gui
to change settings results in unexpected results like netman-gui
autostarting when it is set not to autostart. This means more
debugging is necessary.

Edward
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Re: [DNG] netman-autostart_0.1.1

[Edward Bartolo]

Hi Aitor,

Netman succeeded to autostart and autoconnect even though
/usr/share/applications/ does not contain the netman.desktop file.

However, dpkg-reconfigure netman-gui fails with the complaint:

root@edbarx-pc:/home/edbarx# dpkg-reconfigure netman-gui
mv: cannot stat ‘/usr/share/applications/netman.desktop’: No such file
or directory

Edward


On 06/01/2016, Edward Bartolo  wrote:
> Hi Aitor,
>
> I am trying to add your latest netman patch so that users would be
> able to choose how to start and configure netman. I manually applied
> your netman-gui.postinst patch. The .deb packages thus produced do
> install but /usr/share/applications/netman.desktop is not created.
>
> What is wrong? I beg your pardon for asking questions.
>
> Edward
>
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Re: [DNG] Netman debugging of installation scripts.

[Edward Bartolo]

Hi,

Maybe, this can shed some light on what is causing this problem. The
first time dpkg-reconfigure is used on netman-gui it does NOT exit
complaining the netman.desktop file is not found. This may mean the
netman.desktop file is being deleted by a script called by
dpkg-reconfigure, maybe, netman-gui.postinst?

Edward

On 06/01/2016, Edward Bartolo  wrote:
> Hi Aitor,
>
> I 'git pushed' all my remaining local commits to netman. For an
> ordinary installation involving autostarting and autoconnecting,
> netman works as intended. However, using dpkg-reconfigure netman-gui
> to change settings results in unexpected results like netman-gui
> autostarting when it is set not to autostart. This means more
> debugging is necessary.
>
> Edward
>
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Re: [DNG] PAM usage (Was: Giving Devuan sans-initramfs capabilities)

[Teodoro Santoni]

Good afternoon,

2016-01-06 10:09 GMT+01:00, k...@aspodata.se :
> More like, how can I avoid things that people with good intentions push
> on me so I have to waste my time and work to work around it...

Yeah.

> Avoids cups, don't give me anything than making the actual processing
> hidden and obscure.

PAM is a problem, the cups behaviour is another.
My problem is to run things as, for example, my cheap
hp printer without systemd.
Next may come hplip through lprng or lpr.
I talk about my printer but dunno, may run wayland someday, or
have my family scavenge for money spending on e-commerce
through google-chrome.
I personally don't use any of those, but without pam, a life
without systemd seem much easier.
Maybe I'm wrong.

>> And was curious about your experience, hence the thread.
>
> Soo, any conclutions ?

The thread is two days old.
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Re: [DNG] netman-autostart_0.1.1

[Rainer Weikusat]

Edward Bartolo  writes:
> Maybe, this can shed some light on what is causing this problem. The
> first time dpkg-reconfigure is used on netman-gui it doesn't exit
> complaining the netman.desktop file is not found. This may mean the
> netman.desktop file is being deleted by a script called by
> dpkg-reconfigure, maybe, netman-gui.postinst?

2) db_get netman-gui/netman-autostart
if [ "$RET" = "true" ]; then
file="/etc/xdg/autostart/netman.desktop";
mv /usr/share/applications/netman.desktop 
/etc/xdg/autostart/
fi  
;;

This moves the /usr/share/applications/netman.desktop file to
/etc/xdg/autostart, consequently, /usr/share/applications/netman.desktop
doesn't exist anymore afterwards. And it doesn't do anything in order to
disable autostartf if $RET is not true. If the /etc/xdg/autostart file
is not supposed to be modified, I suggest creating a symlink instead, ie

ln -s /usr/share/applications/netman.desktop /etc/xdg/autostart/

You could also use cp instead of mv so that the autostart file will be a
copy of the original.

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Re: [DNG] netman-autostart_0.1.1

[Edward Bartolo]

Hi Aitor,

I replaced my version of debian/netman-gui.postinst by your version
and still I am getting the same behaviour. If after installing netman
I use dpkg-reconfigure it fails with the same error.

mv: cannot stat ‘/usr/share/applications/netman.desktop’: No such file
or directory

Edward


On 06/01/2016, Edward Bartolo  wrote:
> Hi Aitor,
>
> Netman succeeded to autostart and autoconnect even though
> /usr/share/applications/ does not contain the netman.desktop file.
>
> However, dpkg-reconfigure netman-gui fails with the complaint:
>
> root@edbarx-pc:/home/edbarx# dpkg-reconfigure netman-gui
> mv: cannot stat ‘/usr/share/applications/netman.desktop’: No such file
> or directory
>
> Edward
>
>
> On 06/01/2016, Edward Bartolo  wrote:
>> Hi Aitor,
>>
>> I am trying to add your latest netman patch so that users would be
>> able to choose how to start and configure netman. I manually applied
>> your netman-gui.postinst patch. The .deb packages thus produced do
>> install but /usr/share/applications/netman.desktop is not created.
>>
>> What is wrong? I beg your pardon for asking questions.
>>
>> Edward
>>
>
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Re: [DNG] netman-autostart_0.1.1

[Edward Bartolo]

Hi,

Maybe, this can shed some light on what is causing this problem. The
first time dpkg-reconfigure is used on netman-gui it doesn't exit
complaining the netman.desktop file is not found. This may mean the
netman.desktop file is being deleted by a script called by
dpkg-reconfigure, maybe, netman-gui.postinst?

Edward

On 06/01/2016, Edward Bartolo  wrote:
> Hi Aitor,
>
> I replaced my version of debian/netman-gui.postinst by your version
> and still I am getting the same behaviour. If after installing netman
> I use dpkg-reconfigure it fails with the same error.
>
> mv: cannot stat ‘/usr/share/applications/netman.desktop’: No such file
> or directory
>
> Edward
>
>
> On 06/01/2016, Edward Bartolo  wrote:
>> Hi Aitor,
>>
>> Netman succeeded to autostart and autoconnect even though
>> /usr/share/applications/ does not contain the netman.desktop file.
>>
>> However, dpkg-reconfigure netman-gui fails with the complaint:
>>
>> root@edbarx-pc:/home/edbarx# dpkg-reconfigure netman-gui
>> mv: cannot stat ‘/usr/share/applications/netman.desktop’: No such file
>> or directory
>>
>> Edward
>>
>>
>> On 06/01/2016, Edward Bartolo  wrote:
>>> Hi Aitor,
>>>
>>> I am trying to add your latest netman patch so that users would be
>>> able to choose how to start and configure netman. I manually applied
>>> your netman-gui.postinst patch. The .deb packages thus produced do
>>> install but /usr/share/applications/netman.desktop is not created.
>>>
>>> What is wrong? I beg your pardon for asking questions.
>>>
>>> Edward
>>>
>>
>
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Re: [DNG] netman-autostart_0.1.1

[Rainer Weikusat]

Edward Bartolo  writes:
>
> I did more edits to the netman-gui.postinst script as follows:
>
> 
> 2) db_get netman-gui/netman-autostart
>   if [ "$RET" = "true" ]; then
>   file="/etc/xdg/autostart/netman.desktop";
>   cp /usr/share/applications/netman.desktop 
> /etc/xdg/autostart/
>   else
>   if [ -f "/etc/xdg/autostart/netman.desktop" ]; then
>   rm /etc/xdg/autostart/netman.desktop
>   fi  
>   fi  
>   ;;
> 
>
> However, using dpkg-reconfiguer netman-gui I get the error:
>
> root@edbarx-pc:/home/edbarx# dpkg-reconfigure netman-gui
> /var/lib/dpkg/info/netman-gui.postinst: 24:
> /var/lib/dpkg/info/netman-gui.postinst: [-f: not found

The shell starts parsing something with splitting on unquoted whitespace
in order to turn the input into a sequence of 'words'. This means if
there's no whitespace between [ and -f, this won't end up invoking the
[ with an argument of -f but as [-f. Since the shell doesn't know
anything about that, it will try to run a program named [-f (which
doesn't exist).

The test can be omitted by using

rm -f ...

instead. Attempts to remove a file which doesn't exist then won't cause
rm to exist with an error status.
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Re: [DNG] netman-autostart_0.1.1

[Edward Bartolo]

Hi Rainer,

Thanks so far. The netman-gui.postinst is adding the Exec= line
without removing the previous one. It is also doing the same thing
with the Comment= line.

Here is what netman.desktop looks like:

-
[Desktop Entry]
Categories=Application;Network;
Exec=netman
Exec=netman --auto-conn
Comment=Display network connection status in the system tray
Exec=netman --auto-conn
Comment=Display network connection status in the system tray
GenericName=Netman
Icon=netman
Name=Netman Network Manager
Comment=Start netman without system tray icon
Terminal=false
Type=Application
Categories=Network;


As you can see, it is corrupted. I have yet to determine why the
--no-tray-icon parameter is never added.

Edward

On 06/01/2016, Rainer Weikusat  wrote:
> Edward Bartolo  writes:
>>
>> I did more edits to the netman-gui.postinst script as follows:
>>
>> 
>> 2) db_get netman-gui/netman-autostart
>>  if [ "$RET" = "true" ]; then
>>  file="/etc/xdg/autostart/netman.desktop";
>>  cp /usr/share/applications/netman.desktop 
>> /etc/xdg/autostart/
>>  else
>>  if [ -f "/etc/xdg/autostart/netman.desktop" ]; then
>>  rm /etc/xdg/autostart/netman.desktop
>>  fi  
>>  fi  
>>  ;;
>> 
>>
>> However, using dpkg-reconfiguer netman-gui I get the error:
>>
>> root@edbarx-pc:/home/edbarx# dpkg-reconfigure netman-gui
>> /var/lib/dpkg/info/netman-gui.postinst: 24:
>> /var/lib/dpkg/info/netman-gui.postinst: [-f: not found
>
> The shell starts parsing something with splitting on unquoted whitespace
> in order to turn the input into a sequence of 'words'. This means if
> there's no whitespace between [ and -f, this won't end up invoking the
> [ with an argument of -f but as [-f. Since the shell doesn't know
> anything about that, it will try to run a program named [-f (which
> doesn't exist).
>
> The test can be omitted by using
>
> rm -f ...
>
> instead. Attempts to remove a file which doesn't exist then won't cause
> rm to exist with an error status.
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Re: [DNG] PAM usage (Was: Giving Devuan sans-initramfs capabilities)

[Didier Kryn]

Le 06/01/2016 17:13, Teodoro Santoni a écrit :

PAM is a problem, the cups behaviour is another.
My problem is to run things as, for example, my cheap
hp printer without systemd.
Next may come hplip through lprng or lpr.
I talk about my printer but dunno, may run wayland someday, or
have my family scavenge for money spending on e-commerce
through google-chrome.
I personally don't use any of those, but without pam, a life
without systemd seem much easier.
Maybe I'm wrong.


I'm having pam installed on my devuan-jessie-alpha2 and no systemd 
and no libpam-systemd. No problem.


Didier

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Re: [DNG] netman-autostart_0.1.1

[aitor_czr]

Hi Edward, Rainer

On 01/06/2016 04:58 PM, Edward Bartolo  wrote:

Maybe, this can shed some light on what is causing this problem. The
>first time dpkg-reconfigure is used on netman-gui it doesn't exit
>complaining the netman.desktop file is not found. This may mean the
>netman.desktop file is being deleted by a script called by
>dpkg-reconfigure, maybe, netman-gui.postinst?

 2) db_get netman-gui/netman-autostart
 if [ "$RET" = "true" ]; then
 file="/etc/xdg/autostart/netman.desktop";
 mv/usr/share/applications/netman.desktop 
/etc/xdg/autostart/
 fi
 ;;

This moves the /usr/share/applications/netman.desktop file to
/etc/xdg/autostart, consequently, /usr/share/applications/netman.desktop
doesn't exist anymore afterwards. And it doesn't do anything in order to
disable autostartf if $RET is not true. If the /etc/xdg/autostart file
is not supposed to be modified, I suggest creating a symlink instead, ie

ln -s/usr/share/applications/netman.desktop /etc/xdg/autostart/

You could also use cp instead of mv so that the autostart file will be a
copy of the original.



Sorry, today i had a family meal. Yes, this is what is causing the 
"problem": if the user prefers to autostart netman automaticaly, the 
script removes the launcher from xfce-applications.menu, 
lxde-applications.menu, etc... But i can change "mv" by "cp" if you 
prefer so.


Cheers,

   Aitor.
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Re: [DNG] PAM usage (Was: Giving Devuan sans-initramfs capabilities)

[Didier Kryn]

Le 06/01/2016 17:13, Teodoro Santoni a écrit :

>Avoids cups, don't give me anything than making the actual processing
>hidden and obscure.


Cups is a big black box for me, but this is not the only one 
(iceweasel, gcc, ssh...) . For sure it is not like an lpr client which 
you might craft in a few days, but the service it provides is superior. 
I have it running on my Devuan-jessie-alpha2 without systemd and it 
works fine; I print through an old Debian Squeeze or Lenny server.


Didier

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Re: [DNG] netman-autostart_0.1.1

[Edward Bartolo]

Hi Aitor,

Enjoy yourself, I am working on it. I think, I got a way of putting it
right. There are two .desktop files that control how netman gui
behaves:
a) /etc/xdg/autostart/netman.desktop
b) /usr/share/applications/netman.desktop

The netman-gui.postinst script has to modify both of them. If netman
is set not to start automatically /etc/xdg/autostart/netman.desktop
should be deleted. The sed command in the postinst script also has to
make sure no multiple Exec= and Comment= lines are added to both
.desktop files.

Edward


On 06/01/2016, aitor_czr  wrote:
> Hi Edward, Rainer
>
> On 01/06/2016 04:58 PM, Edward Bartolo  wrote:
>>> Maybe, this can shed some light on what is causing this problem. The
>>> >first time dpkg-reconfigure is used on netman-gui it doesn't exit
>>> >complaining the netman.desktop file is not found. This may mean the
>>> >netman.desktop file is being deleted by a script called by
>>> >dpkg-reconfigure, maybe, netman-gui.postinst?
>>  2) db_get netman-gui/netman-autostart
>>  if [ "$RET" = "true" ]; then
>>  file="/etc/xdg/autostart/netman.desktop";
>>  mv/usr/share/applications/netman.desktop
>> /etc/xdg/autostart/
>>  fi
>>  ;;
>>
>> This moves the /usr/share/applications/netman.desktop file to
>> /etc/xdg/autostart, consequently, /usr/share/applications/netman.desktop
>> doesn't exist anymore afterwards. And it doesn't do anything in order to
>> disable autostartf if $RET is not true. If the /etc/xdg/autostart file
>> is not supposed to be modified, I suggest creating a symlink instead, ie
>>
>> ln -s/usr/share/applications/netman.desktop /etc/xdg/autostart/
>>
>> You could also use cp instead of mv so that the autostart file will be a
>> copy of the original.
>
>
> Sorry, today i had a family meal. Yes, this is what is causing the
> "problem": if the user prefers to autostart netman automaticaly, the
> script removes the launcher from xfce-applications.menu,
> lxde-applications.menu, etc... But i can change "mv" by "cp" if you
> prefer so.
>
> Cheers,
>
> Aitor.
>
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[DNG] netman-gtk3: invalid pointer error

[aitor_czr]

Hi,

I can't free the memory of some pointers ( *cad2 and *res) in 
netman-gtk3. This is what i get:


~$ gcc main.c -o main

~$ ./main
*** Error in `./main': munmap_chunk(): invalid pointer: 
0x01bfdab4 ***

Aborted

See the comented lines 119 and 120 in the attached file.

The textual output of this applications shows the caracteristics of the 
available active wifis.


Any hints?

   Aitor.

Note: you need to install the backend of netman.
#include 
#include 
#include 

int N;
int scan_dim();
void scan_buffer (char **ptr, char *command, char *name, char *str1, char *str2);

int main(int argc, char **argv)
{
  int i;
  char **_essid, **_address, **_quality;
	
  N=scan_dim();
  
  _essid = (char**)malloc(N*sizeof(char*));
  if(!_essid) {printf("Fallo de asignación de memoria\n"); exit(-1);}
	
  _address = (char**)malloc(N*sizeof(char*));
  if(!_address) {printf("Fallo de asignación de memoria\n"); exit(-1);}

  _quality = (char**)malloc(N*sizeof(char*));
  if(!_quality) {printf("Fallo de asignación de memoria\n"); exit(-1);}
  
  scan_buffer (_essid,   "/usr/lib/netman/bin/backend 8", "ESSID:", "\"", "\"");
  scan_buffer (_quality, "/usr/lib/netman/bin/backend 8", "Quality=", "=" , "Signal level");
  scan_buffer (_address, "/usr/lib/netman/bin/backend 8", "Address:", " " , "\"");

  for(i=0; i

Re: [DNG] netman-gtk3: invalid pointer error

[aitor_czr]

On 01/06/2016 07:59 PM, Edward Bartolo  wrote:

Hi,

I can't free the memory of some pointers ( *cad2 and *res) in
netman-gtk3. This is what i get:

~$ gcc main.c -o main

~$ ./main
*** Error in `./main': munmap_chunk(): invalid pointer:
0x01bfdab4 ***
Aborted

See the comented lines 119 and 120 in the attached file.

The textual output of this applications shows the caracteristics of the
available active wifis.

Any hints?

 Aitor.

Note: you need to install the backend of netman.


This is the code:

#include 
#include 
#include 

int N;
int scan_dim();
void scan_buffer (char **ptr, char *command, char *name, char *str1, 
char *str2);


int main(int argc, char **argv)
{
  int i;
  char **_essid, **_address, **_quality;

  N=scan_dim();

  _essid = (char**)malloc(N*sizeof(char*));
  if(!_essid) {printf("Fallo de asignación de memoria\n"); exit(-1);}

  _address = (char**)malloc(N*sizeof(char*));
  if(!_address) {printf("Fallo de asignación de memoria\n"); exit(-1);}

  _quality = (char**)malloc(N*sizeof(char*));
  if(!_quality) {printf("Fallo de asignación de memoria\n"); exit(-1);}

  scan_buffer (_essid,   "/usr/lib/netman/bin/backend 8", "ESSID:", 
"\"", "\"");
  scan_buffer (_quality, "/usr/lib/netman/bin/backend 8", "Quality=", 
"=" , "Signal level");
  scan_buffer (_address, "/usr/lib/netman/bin/backend 8", "Address:", " 
" , "\"");


  for(i=0; i

Re: [DNG] netman-autostart_0.1.1

[Rainer Weikusat]

Edward Bartolo  writes:
> Enjoy yourself, I am working on it. I think, I got a way of putting it
> right. There are two .desktop files that control how netman gui
> behaves:
> a) /etc/xdg/autostart/netman.desktop
> b) /usr/share/applications/netman.desktop
>
> The netman-gui.postinst script has to modify both of them.

In this case, you shouldn't copy the file but create a symlink to
it. This means there's only one copy which has to be modified.

[...]

> The sed command in the postinst script also has to
> make sure no multiple Exec= and Comment= lines are added to both
> .desktop files.

sed is generally the wrong choice for editing files (as it's the 'stream
editor'). ed can be used for that (needs to become a package dependency
as 'certain people in the Debian project' were hit by a pine at a
formative age and are thus opposed to using sensibly-working text
editors).

The following shell function should be sufficient for your use-case

---
change_line()
{
file="$1"
new="`echo $2 | sed 's/\(.\)/\1/g'`"
key=`expr "$2" : "\([^=]\+=\)."`
ed "$file" 

Re: [DNG] netman-gtk3: invalid pointer error

[Irrwahn]

On Wed, 06 Jan 2016 20:05:12 +0100, Aitor Czr wrote:
> On 01/06/2016 07:59 PM, Edward Bartolo  wrote:
>> Hi,
>>
>> I can't free the memory of some pointers ( *cad2 and *res) in 
>> netman-gtk3. This is what i get:
>>
>> ~$ gcc main.c -o main
>>
>> ~$ ./main
>> *** Error in `./main': munmap_chunk(): invalid pointer: 
>> 0x01bfdab4 ***
>> Aborted

[...]

Note: I didn't try to undertand what the code is intended
to do, just commenting on some obvious flaws.

> void scan_buffer (char **ptr, char *command, char *name, char *str1, char 
> *str2)
> {
>   FILE *fp;
>   char *cad1, *cad2, *res;
>  
>   cad1=(char*)malloc(1024*sizeof(char));

Better C style would've been:

cad1=malloc(1024);

Casting malloc()'s return value is nonsense and potentially dangerous, 
sizeof(char) is always guaranteed to equal 1.

[...]

>  cad2 = strstr((char *) cad1, name); 
>  res  = strstr((char *) cad2, str1);


Now you assigned to cad2 and res and lost your only reference 
to your meticulously allocated buffers! (More bogus casts, BTW.)

[...]

And then you tried to free something that was not a pointer value 
returned by any of the *alloc() functions:

>   // free(cad2);
>   // free(res);

[...]

As I said, I didn't try to guess the intention - if you want to 
work in-place an the string or if you're actually looking for strcpy().

HTH, regards
Irrwahn

 
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Re: [DNG] upgrade to devuan

[Vicente Vera]

Hi,

Yes, I follow you. Now that I remember about this thread, I just
closed an issue opened in this package repository that was based on my
previous bogus interpretation. Thanks for the reminder ;>

2016-01-05 8:24 GMT-03:00 aitor_czr :
> Hi Vicente,
>
> On 01/05/2016 10:58 AM, Vicente Vera  wrote:
>
> AFAIK installing devuan-baseconf_0.6.4+devuan1_all.deb is pretty much
> the same as modifying sources.list by hand. I chose 0.6.4+devuan1
> because--correct me if I'm wrong:
>
> 0.6.4+devuan1 = jessie
> 0.6.4+devuan2 = ascii
> 0.6.4+devuan3 = ceres
>
> Thanks
>
>
> I don't think so...
>
> Increasing from devuan1 to devuan2 means changes in the debian branch of the
> package (instead of the upstream branch, i.e. the sources). So, different
> versions of the package don't belong *necessarily* to different releases of
> the system.
>
> Cheers,
>
> Aitor.
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Re: [DNG] netman-autostart_0.1.1

[Edward Bartolo]

Hi Rainer,

I did more edits to the netman-gui.postinst script as follows:


2) db_get netman-gui/netman-autostart
if [ "$RET" = "true" ]; then
file="/etc/xdg/autostart/netman.desktop";
cp /usr/share/applications/netman.desktop 
/etc/xdg/autostart/
else
if [ -f "/etc/xdg/autostart/netman.desktop" ]; then
rm /etc/xdg/autostart/netman.desktop
fi  
fi  
;;


However, using dpkg-reconfiguer netman-gui I get the error:

root@edbarx-pc:/home/edbarx# dpkg-reconfigure netman-gui
/var/lib/dpkg/info/netman-gui.postinst: 24:
/var/lib/dpkg/info/netman-gui.postinst: [-f: not found

I think this has to do with incorrect script syntax.

Any hints are greatly appreciated.

Edward

On 06/01/2016, Edward Bartolo  wrote:
> Hi Rainer,
>
> I edited the netman-gui.postinst script. I am attaching it to this
> email as I am not an experienced bash script programmer. You can view
> it in the attachment.
>
> netman GUI use --no-tray-icon  and --auto-conn parameters. If
> --no-tray-icon is used netman GUI does not use a tray icon.
> Autoconnecting is enabled if --auto-conn is used as a parameter,
> otherwise autoconnecting is disabled.
>
> Edward
>
>
> On 06/01/2016, Rainer Weikusat  wrote:
>> Edward Bartolo  writes:
>>> Maybe, this can shed some light on what is causing this problem. The
>>> first time dpkg-reconfigure is used on netman-gui it doesn't exit
>>> complaining the netman.desktop file is not found. This may mean the
>>> netman.desktop file is being deleted by a script called by
>>> dpkg-reconfigure, maybe, netman-gui.postinst?
>>
>> 2) db_get netman-gui/netman-autostart
>> if [ "$RET" = "true" ]; then
>> file="/etc/xdg/autostart/netman.desktop";
>> mv /usr/share/applications/netman.desktop
>> /etc/xdg/autostart/
>> fi
>> ;;
>>
>> This moves the /usr/share/applications/netman.desktop file to
>> /etc/xdg/autostart, consequently, /usr/share/applications/netman.desktop
>> doesn't exist anymore afterwards. And it doesn't do anything in order to
>> disable autostartf if $RET is not true. If the /etc/xdg/autostart file
>> is not supposed to be modified, I suggest creating a symlink instead, ie
>>
>> ln -s /usr/share/applications/netman.desktop /etc/xdg/autostart/
>>
>> You could also use cp instead of mv so that the autostart file will be a
>> copy of the original.
>>
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Re: [DNG] netman-autostart_0.1.1

[Edward Bartolo]

Hi Rainer,

I edited the netman-gui.postinst script. I am attaching it to this
email as I am not an experienced bash script programmer. You can view
it in the attachment.

netman GUI use --no-tray-icon  and --auto-conn parameters. If
--no-tray-icon is used netman GUI does not use a tray icon.
Autoconnecting is enabled if --auto-conn is used as a parameter,
otherwise autoconnecting is disabled.

Edward


On 06/01/2016, Rainer Weikusat  wrote:
> Edward Bartolo  writes:
>> Maybe, this can shed some light on what is causing this problem. The
>> first time dpkg-reconfigure is used on netman-gui it doesn't exit
>> complaining the netman.desktop file is not found. This may mean the
>> netman.desktop file is being deleted by a script called by
>> dpkg-reconfigure, maybe, netman-gui.postinst?
>
> 2) db_get netman-gui/netman-autostart
> if [ "$RET" = "true" ]; then
> file="/etc/xdg/autostart/netman.desktop";
> mv /usr/share/applications/netman.desktop
> /etc/xdg/autostart/
> fi
> ;;
>
> This moves the /usr/share/applications/netman.desktop file to
> /etc/xdg/autostart, consequently, /usr/share/applications/netman.desktop
> doesn't exist anymore afterwards. And it doesn't do anything in order to
> disable autostartf if $RET is not true. If the /etc/xdg/autostart file
> is not supposed to be modified, I suggest creating a symlink instead, ie
>
> ln -s /usr/share/applications/netman.desktop /etc/xdg/autostart/
>
> You could also use cp instead of mv so that the autostart file will be a
> copy of the original.
>
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>


netman-gui.postinst
Description: Binary data
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Re: [DNG] netman-autostart_0.1.1

[Edward Bartolo]

Hi Rainer, Aitor and All,

netman-gui.postinst now is debugged to behave properly when
dpkg-reconfigure is used on netman-gui.

sed is still adding an unneccessary leading space in lines Exec=  and
Comment= in both .desktop files.

I was suggested to drop one of the .desktop files and use a symlink
instead. I think this is a good idea, but I have been coding for 10
hours 30 minutes now, so it is time for me to go to sleep.

Edward

On 06/01/2016, Rainer Weikusat  wrote:
> Edward Bartolo  writes:
>> Enjoy yourself, I am working on it. I think, I got a way of putting it
>> right. There are two .desktop files that control how netman gui
>> behaves:
>> a) /etc/xdg/autostart/netman.desktop
>> b) /usr/share/applications/netman.desktop
>>
>> The netman-gui.postinst script has to modify both of them.
>
> In this case, you shouldn't copy the file but create a symlink to
> it. This means there's only one copy which has to be modified.
>
> [...]
>
>> The sed command in the postinst script also has to
>> make sure no multiple Exec= and Comment= lines are added to both
>> .desktop files.
>
> sed is generally the wrong choice for editing files (as it's the 'stream
> editor'). ed can be used for that (needs to become a package dependency
> as 'certain people in the Debian project' were hit by a pine at a
> formative age and are thus opposed to using sensibly-working text
> editors).
>
> The following shell function should be sufficient for your use-case
>
> ---
> change_line()
> {
> file="$1"
> new="`echo $2 | sed 's/\(.\)/\1/g'`"
> key=`expr "$2" : "\([^=]\+=\)."`
> ed "$file" < /^$key/s/.*/$new
> wq
> EOF
> }
> ---
>
> This takes a file as first argument and the new line as second
> argument. If a line with the same 'keyword' (text before the first =)
> already exists, it's replaced. Otherwise, nothing happens.
>
> NB: Like all shell code (or most), this won't work with 'suitably
> crafted input'. But shell programming is an exercise in inventing 'good
> enough' solutions for fairly well-defined problems.
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Re: [DNG] PAM usage (Was: Giving Devuan sans-initramfs capabilities)

[Aldemir Akpinar]

On 6 January 2016 at 20:29, Didier Kryn  wrote:

> Le 06/01/2016 17:13, Teodoro Santoni a écrit :
>
>> PAM is a problem, the cups behaviour is another.
>> My problem is to run things as, for example, my cheap
>> hp printer without systemd.
>> Next may come hplip through lprng or lpr.
>> I talk about my printer but dunno, may run wayland someday, or
>> have my family scavenge for money spending on e-commerce
>> through google-chrome.
>> I personally don't use any of those, but without pam, a life
>> without systemd seem much easier.
>> Maybe I'm wrong.
>>
>
> I'm having pam installed on my devuan-jessie-alpha2 and no systemd and
> no libpam-systemd. No problem.
>
> Didier
>
>
Yes, even on a Debian Jessie  I've PAM installed without systemd. And I
fail to see what the big deal about PAM is in this case.
--
aldemir,
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