Xref: utzoo news.software.b:3053 news.software.nntp:294
Path: utzoo!mnetor!tmsoft!torsqnt!jarvis.csri.toronto.edu!rutgers!psuvax1!psuvax1!flee
From: flee@shire.cs.psu.edu (Felix Lee)
Newsgroups: news.software.b,news.software.nntp
Subject: Important! 14Sep89 C News and NNTP!
Message-ID: <FLEE.89Sep19062737@shire.cs.psu.edu>
Date: 19 Sep 89 10:27:37 GMT
Sender: news@psuvax1.cs.psu.edu
Distribution: news
Organization: Penn State University Computer Science
Lines: 89

Due to the change in the way Message-IDs are handled in the 14 Sep 89
version of C News, NNTP now accepts an ungodly number of duplicates.
The fix is to have nntpd lowercase Message-IDs following C News's
(RFC-822 compliant) rules.  Patch to nntp1.5.6/server/misc.c follows.
--
Felix Lee	flee@shire.cs.psu.edu	*!psuvax1!flee

diff -c2 -r1.1 server/misc.c
*** /tmp/,RCSt1a05318	Tue Sep 19 06:26:01 1989
--- server/misc.c	Tue Sep 19 06:24:00 1989
***************
*** 77,85 ****
   *			containing the full pathname of the
   *			article, or NULL if the message-id is not
!  *			in thef history file.
   *
   *	Side effects:	opens dbm database
   *			(only once, keeps it open after that).
!  *			Converts "msg_id" to lower case if not running Cnews.
   */
  
--- 77,86 ----
   *			containing the full pathname of the
   *			article, or NULL if the message-id is not
!  *			in the history file.
   *
   *	Side effects:	opens dbm database
   *			(only once, keeps it open after that).
!  *			Converts "msg_id" to RFC-822 rules if running
!  *			C News, otherwise lowercases "msg_id".
   */
  
***************
*** 115,123 ****
  	static FILE	*hfp = NULL;	/* history file, text version */
  
! #ifndef CNEWS
  	for (cp = msg_id; *cp != '\0'; ++cp)
  		if (isupper(*cp))
  			*cp = tolower(*cp);
- 
  #endif
  
--- 116,127 ----
  	static FILE	*hfp = NULL;	/* history file, text version */
  
! #ifdef CNEWS
! 	extern char	*rfc822ize();
! 
! 	(void) rfc822ize(msg_id);
! #else
  	for (cp = msg_id; *cp != '\0'; ++cp)
  		if (isupper(*cp))
  			*cp = tolower(*cp);
  #endif
  
***************
*** 899,900 ****
--- 903,930 ----
  #endif
  #endif LOAD
+ 
+ /* Code ripped from 16 Sep 89 C News, libcnews/case.c. */
+ /*
+  - rfc822ize - do the bizarre case conversion needed for rfc822 message-ids
+  */
+ char *				/* returns the argument */
+ rfc822ize(s)
+ char *s;
+ {
+ 	register char *p;
+ 	static char post[] = "postmaster";
+ 	static int postlen = sizeof(post)-1;
+ 
+ 	p = rindex(s, '@');
+ 	if (p == NULL)			/* no local/domain split */
+ 		p = "";			/* assume all local */
+ 	else if	(p - (s+1) == postlen && strncasecmp(s+1, post, postlen)) {
+ 		/* crazy special case -- "postmaster" is case-insensitive */
+ 		p = s;
+ 	}
+ 	for (; *p != '\0'; p++)
+ 		if (isupper(*p))
+ 			*p = tolower(*p);
+ 
+ 	return(s);
+ }

-----end of patch-----