Comment # 1 on bug 933854 from Bernhard Wiedemann

When using it with routable IPs, it was working most of the time,
but I got it to segfault with

mtr -n --xml 1.2.3.4
...
    <HUB COUNT=12 HOST=209.85.252.47>
        <Loss%>  0.0%</Loss%>
        <Snt>    10</Snt>
        < > </(null)>
        <Last>  92.7</Last>
        <Avg>  92.8</Avg>
        <Best>  92.7</Best>
        <Wrst>  93.5</Wrst>
        <StDev>   0.0</StDev>
    </HUB>
    <HUB COUNT=13 HOST=???>
        <Loss%> 100.0%</Loss%>
        <Snt>    10</Snt>
Segmentation fault (core dumped)

both on 13.2 and Factory.

This is from Factory's mtr-0.85_p20140126-1.4.x86_64:
(gdb) bt
#0  0x00007f7bb3f08c78 in _IO_vfprintf_internal (s=<optimized out>, 
    format=<optimized out>, 
    format@entry=0x7ffe25d37060 "        <%s> </%s>\n", 
    ap=ap@entry=0x7ffe25d36f58) at vfprintf.c:1642
#1  0x00007f7bb3fb4756 in ___printf_chk (flag=flag@entry=1, 
    format=format@entry=0x7ffe25d37060 "        <%s> </%s>\n")
    at printf_chk.c:35
#2  0x00007f7bb501ceb1 in printf (__fmt=0x7ffe25d37060 "        <%s> </%s>\n")
    at /usr/include/bits/stdio2.h:104
#3  xml_close () at report.c:308
#4  0x00007f7bb5013f52 in main (argc=4, argv=0x7ffe25d37348) at mtr.c:711