Yes, indeed.  GCC even produces identical code before and after the
"fix".  Why are these pointless changes done?

	-- Lennart

Charles M. Hannum wrote:
> On Thursday 16 October 2003 06:36 am, Jun-ichiro itojun Hagino wrote:
> 
>>Module Name:	src
>>Committed By:	itojun
>>Date:		Thu Oct 16 06:36:51 UTC 2003
>>
>>Modified Files:
>>	src/usr.bin/whois: whois.c
>>
>>Log Message:
>>safer use of realloc
> 
> 
> This is not in *any* way "safer."  In practice it does nothing different at 
> all.  It is code churning for the sake of code churning.  This kind of utter 
> nonsense has introduced new bugs almost every time, and is *clearly* not 
> worthwhile.
> 
> 
> ------------------------------------------------------------------------
> 
> Index: src/usr.bin/whois/whois.c
> diff -c src/usr.bin/whois/whois.c:1.24 src/usr.bin/whois/whois.c:1.25
> *** src/usr.bin/whois/whois.c:1.24	Sat Oct 11 09:06:03 2003
> --- src/usr.bin/whois/whois.c	Thu Oct 16 06:36:51 2003
> ***************
> *** 1,4 ****
> ! /*      $NetBSD: whois.c,v 1.24 2003/10/11 09:06:03 wiz Exp $   */
>   /*	$OpenBSD: whois.c,v 1.28 2003/09/18 22:16:15 fgsch Exp $	*/
>   
>   /*
> --- 1,4 ----
> ! /*      $NetBSD: whois.c,v 1.25 2003/10/16 06:36:51 itojun Exp $   */
>   /*	$OpenBSD: whois.c,v 1.28 2003/09/18 22:16:15 fgsch Exp $	*/
>   
>   /*
> ***************
> *** 41,47 ****
>   #if 0
>   static const char sccsid[] = "@(#)whois.c	8.1 (Berkeley) 6/6/93";
>   #else
> ! __RCSID("$NetBSD: whois.c,v 1.24 2003/10/11 09:06:03 wiz Exp $");
>   #endif
>   #endif /* not lint */
>   
> --- 41,47 ----
>   #if 0
>   static const char sccsid[] = "@(#)whois.c	8.1 (Berkeley) 6/6/93";
>   #else
> ! __RCSID("$NetBSD: whois.c,v 1.25 2003/10/16 06:36:51 itojun Exp $");
>   #endif
>   #endif /* not lint */
>   
> ***************
> *** 280,285 ****
> --- 280,286 ----
>   choose_server(const char *name, const char *country)
>   {
>   	static char *server;
> + 	char *nserver;
>   	const char *qhead;
>   	char *ep;
>   	size_t len;
> ***************
> *** 298,305 ****
>   	} else if (isdigit((unsigned char)*(++qhead)))
>   		return (ANICHOST);
>   	len = strlen(qhead) + sizeof(QNICHOST_TAIL);
> ! 	if ((server = realloc(server, len)) == NULL)
>   		err(1, "realloc");
>   	(void)strlcpy(server, qhead, len);
>   	(void)strlcat(server, QNICHOST_TAIL, len);
>   	return (server);
> --- 299,307 ----
>   	} else if (isdigit((unsigned char)*(++qhead)))
>   		return (ANICHOST);
>   	len = strlen(qhead) + sizeof(QNICHOST_TAIL);
> ! 	if ((nserver = realloc(server, len)) == NULL)
>   		err(1, "realloc");
> + 	server = nserver;
>   	(void)strlcpy(server, qhead, len);
>   	(void)strlcat(server, QNICHOST_TAIL, len);
>   	return (server);