[CLUG] Maximum data on the command line?

[Jerry Walsh]

Don't echo data to it, pipe it
something like:

========================================
         $pgp_binary = "/usr/local/bin/pgp";
         $pgp_id = "Adam Beecher";

         $pgp_tmp = "/home/me/tmp_pgp/";
         $pgp_file = tempnam($pgp_tmp,"PGP");

         $pgp = popen("$pgp_binary -FEAT +VERBOSE=0 $pgp_id -o $pgp_file","w");
         for($i=0;$i<count($hiddens);$i++)
         {
                 fputs($pgp,"This is all highly encrypted data piped to pgp");
         }
         pclose($pgp);

         $asc_file = "$pgp_file.asc";
         if (file_exists($asc_file)){
                 $encrypted = join('',file("$pgp_file.asc"));
                 @unlink($asc_file);
         }
         else
         {
                 print "Something went wrong, are the directory permissions 
correct?";
         }

========================================

Beware of the above wrapping ;)


HTH,

Jerry.



At 00:46 18/10/00 +0100, you wrote:
>Just implementing a PGP encryption script for someone there, and I notice 
>in my
>travels that MS-DOS apparently has a limit on the amount of data you can 
>put on
>the command line. I've put a fair wedge of data on the command line in the 
>past
>doing this, but I'm wondering if there's a limit in Linux too, and if so, what
>it is?
>
>Basically, the script uses the PHP exec() function with a command line like
>this:
>
>echo $message | pgp -command-line-options
>
>The $message would usually be form data.
>
>Cheers,
>adam
>
>
>_______________________________________________
>Cork maillist  -  Cork at linux.ie
>http://www.linux.ie/mailman/listinfo/cork