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Unix/Linux 网络时间协议版本3 Network Time Protocol Version 3 (NTP) distribution for Unix systems

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Date: Fri, 28 Mar 1997 17:35:15 -0800 (PST)
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Subject: bug fix for xntpd

We were having a problem with xntpd not listening on all addresses,
in particular on interface aliases, i.e. interfaces with more than
one address associated with them.  This became apparent with the
newer versions of the nameserver that round-robin all of the addresses
associated with a host -- we had one alias out of three addresses, so
one third of the time ntp wouldn't work.  Enclosed is the patch, it
removes an unnecessary ioctl and works like a charm.

	Greg Couch
	[e-mail]

===================================================================
xntp3-5.89/xntpd
===================================================================
RCS file: RCS/ntp_io.c,v
retrieving revision 1.1
diff -r1.1 ntp_io.c
492,513c492
< # ifndef SYS_WINNT
< #  ifdef STREAMS_TLI
<       ioc.ic_cmd = SIOCGIFADDR;
<       ioc.ic_timout = 0;
<       ioc.ic_dp = (caddr_t)&ifreq;
<       ioc.ic_len = sizeof(struct ifreq);
<       if (ioctl(vs, I_STR, &ioc))
< 	{
< 	  msyslog(LOG_ERR, "Failed to get interface addr: %m");
< 	  continue;
< 	}
< #  else /* not STREAMS_TLI */
<       if (ioctl(vs, SIOCGIFADDR, (char *)&ifreq) < 0)
< 	{
< 	  msyslog(LOG_ERR, "Failed to get interface addr: %m");
< 	  continue;
< 	}
< #  endif /* not STREAMS_TLI */
< 
< # endif /* not SYS_WINNT */
< 
<       (void)strncpy(inter_list[i].name, ifreq.ifr_name,
---
>       (void)strncpy(inter_list[i].name, ifr->ifr_name,
515c494
<       inter_list[i].sin = *(struct sockaddr_in *)&ifreq.ifr_addr;
---
>       inter_list[i].sin = *(struct sockaddr_in *)&ifr->ifr_addr;