ports/186004: svnup bugs

[titus m]

>Number:         186004
>Category:       ports
>Synopsis:       svnup bugs
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Jan 22 16:00:00 UTC 2014
>Closed-Date:
>Last-Modified:
>Originator:     titus m
>Release:        10.0-RELEASE
>Organization:
edc
>Environment:
FreeBSD fbsd10 10.0-RELEASE FreeBSD 10.0-RELEASE #0 r260789: Thu Jan 16 22:34:59 UTC 2014     root at snap.freebsd.org:/usr/obj/usr/src/sys/GENERIC  amd64
>Description:
1. svnup  crashes with ssl protocol svn0.eu.FreeBSD.org
seems to be fine on us servers

2. svnup / http does not work thru / crashes transparent proxy (squid)
the problem seems to be caused of the chunked encoding re-served by squid
original content seems to always have chunks aligned to a newline boundary and the squid served one does not 
so the content may look like <taCHUNKSIZE\r\ng attrib="value">tag contents</tag>
this causes the parse_xml function to return null values (which are never checked)
>How-To-Repeat:
1. connect via ssl to svn0.eu.FreeBSD.org on 10.0-RELEASE (bombs in SSL_connect)
2. use svnup via transparent squid (3.2.x tested) 
this probably bombs on any version 32/64 freebsd 8/9/10 etc
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: