Re: howto integrate dm-crypt into a frontend(or howto get the udi for pmount)

[rupert <rupertt@xxxxxxxxx>]

wait, you gave me some more courage to play with the popen command,
and i got it working now, so much simpler than i thought :(.
Ive been stuck for 3 days with this...

void init_password_callback(GtkWidget *dialog, gint response, char
*dev_mapper){

   char* passphrase = NULL;


    if (response == GTK_RESPONSE_OK)
       passphrase = gksuui_dialog_get_password(GTK_WIDGET(dialog));
    if (!passphrase)
       g_print("kein Password");

    gtk_widget_destroy(GTK_WIDGET(dialog));
    // g_print("PASS: %s", passphrase);
    gchar pw[512];
    gchar init_pw[512];
    sprintf(init_pw, "/sbin/cryptsetup luksOpen %s", dev_mapper);
    // g_print("ARGV_3: %s",init_pw);

    FILE *fp = popen(init_pw, "w");

       if (fp)
       {
   fprintf(fp, "%s\n", passphrase);
       }
    fclose(fp);
    return;
}


thx a lot

rupert

On 8/13/06, rupert <rupertt@xxxxxxxxx> wrote:
> On 8/13/06, Luca Berra <bluca@xxxxxxxxxx> wrote:
> >
> > On Sun, Aug 13, 2006 at 11:59:53AM +0200, rupert wrote:
> > >Hello,
> > >
> > >im writing a small frontend(in C) for cryptsetup, only init and mount
> > the
> > >volumes, no creation of volumes,
> > >and I would like to know how i can pass the password to the cryptsetup
> > >commando?
> > popen() ?
>
>
> well, i tried something like this without luck,
> maybe im doing a simple mistake, could you take a look at the code?
>
> void init_password_callback(GtkWidget *dialog, gint response, char
> *dev_mapper){
>
>     char *argv[5] = {"/sbin/cryptsetup luksOpen", dev_mapper, NULL, NULL,
> NULL};
>     GError *error = NULL;
>     char* fifoname = NULL;
>     FILE* fifo = NULL;
>     GPid mount_pid;
>     char* passphrase = NULL;
>
>
>      if (response == GTK_RESPONSE_OK)
>         passphrase = gksuui_dialog_get_password(GTK_WIDGET(dialog));
>      if (!passphrase)
>         g_print("kein Password");
>
>      gtk_widget_destroy(GTK_WIDGET(dialog));
>      // g_print("PASS: %s", passphrase);
>      gchar pw[512];
>      gchar init_pw[512];
>      sprintf(init_pw, "/sbin/cryptsetup luksOpen %s", dev_mapper);
>      // g_print("ARGV_3: %s",init_pw);
>
>      FILE *fp = popen(init_pw, "w");
>
>         if (fp)
>         {
>          sprintf(pw, "%\n", passphrase);
>         fputs(pw, fp);
> //        fputs(pw, stdin);
>         }
>
>      return;
> }
>
>
> >Since there is no -P option i cant do it via argv.
> > which is a good thing(tm)
>
>
> i think that to, bash_history could make the whole thing useless...
>
> thx
>
> L.
> >
> > --
> > Luca Berra -- bluca@xxxxxxxxxx
> >         Communication Media & Services S.r.l.
> > /"\
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> > / \
> >
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> >
> >