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From: palkovic@linac.fnal.gov (John Palkovic)
Newsgroups: news.software.b
Subject: Re: Ideas for Message-ID's
Message-ID: <+AK#+&|@linac.fnal.gov>
Date: 22 Mar 91 19:48:35 GMT
References: <3427@litchi.bbn.com> <1991Mar22.050749.22115@looking.on.ca>
Sender: daemon@linac.fnal.gov (The Background Man)
Reply-To: "John Palkovic" <palkovic@linac.fnal.gov>
Organization: Bob's School of Quantum Mechanics
Lines: 39
In-Reply-To: brad@looking.on.ca's message of 22 Mar 91 05:07:49 GMT
Nntp-Posting-Host: linac.fnal.gov

>>>>> On 22 Mar 91 05:07:49 GMT, brad@looking.on.ca (Brad Templeton) said:
> Is there any reason for the message-id to be readable?  ...

Why should the headers be readable? The articles usually aren't. :-)

How about this little subroutine? Look in the header of this article
for an example. As long as pid's don't repeat in 60 sec it is fine.

 /*
  * The following was inspired by a program apparently written by Jon Zeeff
  * (zeeff@b-tech.ann-arbor.mi.us). Palkovic@linac.fnal.gov, 3/16/91.
  */

  /*
   * A string of some valid message id characters
   */

char string[] = "!#$%^&*_+|-=~`{}'?ABCDFGHJKLMNPQRSTVWXYZ1234567890";

#define size (sizeof(string) - 1)

void rand_id(s)
char *s;
{
    int getpid();
    long num;

    num = (time((long *) 0) - 658216800)/60;
    do {
	*s++ = string[num % size];
	num /= size;
    } while (num);

    num = (long) getpid();
    do {
	*s++ = string[num % size];
	num /= size;
    } while (num);
}