[Midnightbsd-cvs] src [8199] trunk/usr.sbin/syslogd: add support for ipv6 addresses as destination.

[laffer1 at midnightbsd.org]

Revision: 8199
          http://svnweb.midnightbsd.org/src/?rev=8199
Author:   laffer1
Date:     2016-09-17 11:45:14 -0400 (Sat, 17 Sep 2016)
Log Message:
-----------
add support for ipv6 addresses as destination.

Modified Paths:
--------------
    trunk/usr.sbin/syslogd/syslog.conf.5
    trunk/usr.sbin/syslogd/syslogd.c

Modified: trunk/usr.sbin/syslogd/syslog.conf.5
===================================================================
--- trunk/usr.sbin/syslogd/syslog.conf.5	2016-09-17 15:44:45 UTC (rev 8198)
+++ trunk/usr.sbin/syslogd/syslog.conf.5	2016-09-17 15:45:14 UTC (rev 8199)
@@ -28,7 +28,7 @@
 .\"     @(#)syslog.conf.5	8.1 (Berkeley) 6/9/93
 .\" $MidnightBSD$
 .\"
-.Dd December 23, 2008
+.Dd September 12, 2012
 .Dt SYSLOG.CONF 5
 .Os
 .Sh NAME
@@ -347,6 +347,14 @@
 .Pq Ql :\&
 then that port will be used as the destination port
 rather than the usual syslog port.
+IPv6 addresses can be used
+by surrounding the address portion with
+square brackets
+.Po
+.Ql [\&
+and
+.Ql ]\&
+.Pc .
 .It
 A comma separated list of users.
 Selected messages are written to those users

Modified: trunk/usr.sbin/syslogd/syslogd.c
===================================================================
--- trunk/usr.sbin/syslogd/syslogd.c	2016-09-17 15:44:45 UTC (rev 8198)
+++ trunk/usr.sbin/syslogd/syslogd.c	2016-09-17 15:45:14 UTC (rev 8199)
@@ -1931,6 +1931,7 @@
 	case '@':
 		{
 			char *tp;
+			char endkey = ':';
 			/*
 			 * scan forward to see if there is a port defined.
 			 * so we can't use strlcpy..
@@ -1939,9 +1940,19 @@
 			tp = f->f_un.f_forw.f_hname;
 			p++;
 
-			while (*p && (*p != ':') && (i-- > 0)) {
+			/*
+			 * an ipv6 address should start with a '[' in that case
+			 * we should scan for a ']'
+			 */
+			if (*p == '[') {
+				p++;
+				endkey = ']';
+			}
+			while (*p && (*p != endkey) && (i-- > 0)) {
 				*tp++ = *p++;
 			}
+			if (endkey == ']' && *p == endkey)
+				p++;
 			*tp = '\0';
 		}
 		/* See if we copied a domain and have a port */