[vdr] Re: E-Mail-Reader for VDR ?

[Carsten Koch <Carsten.Koch@icem.de>]

Axel Gruber wrote:
...
> Is anyone working on a solution for reading E-Mailīs with VDR ?

I have a solution that I created last July. 
It has been working fine for me ever since, but will be
totally useless for you unless you have some way of getting
your mails delivered to a file that can be reached from the vdr.

In my case, mails get delivered automatically to /var/mail/cko
on one of the machines in my network, so I simply wrote a
tiny C program that can list a summary of headers and any
selected mail's body. In commands.conf I call it like this:
   Mail Headers:/home/cko/bin/list_mail < /wald/var/mail/cko
to get the headers and like this:
   Mail 1:/home/cko/bin/list_mail 1   < /wald/var/mail/cko
to get a certain mail (number 1 in this example).

Very simple, but good enough for me. Took about an hour to do it.

Here is the C program (it's only 82 lines, but a perl
Guru could probably write the same thing in 5 lines ;-)

#include <stdio.h>

#define BUF 1024

void list_headers()

{
   char line[BUF+1];
   int mails = 0;
   
   fgets(line, BUF, stdin);
   for (;;)
   {
      int found = 0;
      while ((!feof(stdin)) && (strncmp(line, "From ", 5) != 0))
         fgets(line, BUF, stdin);
      if (feof(stdin)) break;
      mails++;
      printf("%d:\n", mails);
      do
      {
         fgets(line, BUF, stdin);
         if (strncmp(line, "Subject: ", 9) == 0)
         {
            printf("%s", line+9);
            found++;
         }
         else if (strncmp(line, "Date: ", 6) == 0)
         {
            printf("%s", line+6);
            found++;
         }
         else if (strncmp(line, "From: ", 6) == 0)
         {
            printf("%s", line+6);
            found++;
         }
      } while (! ((found == 3) || feof(stdin) || 
                  (strncmp(line, "From ", 5) == 0)));
      printf("\n");
   }
   printf("%d mail(s).\n", mails);
}


void list_message(const int msgnr)

{
   char line[BUF+1];
   int mail = 0;

   do
   {
      fgets(line, BUF, stdin);
      while ((!feof(stdin)) && (strncmp(line, "From ", 5) != 0))
         fgets(line, BUF, stdin);
      if (feof(stdin)) return;
      mail++;
   } while (mail != msgnr);
   do
   {
      fgets(line, BUF, stdin);
      if (feof(stdin) || (strncmp(line, "From ", 5) == 0))
         return;
   } while (line[0] != '\n');
   do
   {
      printf("%s", line);
      fgets(line, BUF, stdin);
   } while (! (feof(stdin) || (strncmp(line, "From ", 5) == 0)));
}


main(int argc, char **argv)

{
   if (argc == 1)
      list_headers();
   else
      list_message(atoi(argv[1]));
}



Is this of general use?
If yes, Klaus: feel free to add it to the Tools directory
(with this mail as a README file).

Carsten.