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<p class=MsoNormal>Per subject – if my interpretation of the behavior
described below is correct, lftp (even as current as 3.7.1) appears to be
relying on this behavior.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Running against my paramiko-based server, lftp hangs
indefinitely trying to run a directory listing:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>---- path on wire is `/'<o:p></o:p></p>
<p class=MsoNormal>---> sending a packet, length=10, type=11(OPENDIR), id=4<o:p></o:p></p>
<p class=MsoNormal><--- got a packet, length=12, type=102(HANDLE), id=4<o:p></o:p></p>
<p class=MsoNormal>---- got file handle 687831 (3)<o:p></o:p></p>
<p class=MsoNormal>---> sending a packet, length=12, type=12(READDIR), id=5<o:p></o:p></p>
<p class=MsoNormal><--- got a packet, length=231, type=104(NAME), id=5<o:p></o:p></p>
<p class=MsoNormal>---- file name count=2<o:p></o:p></p>
<p class=MsoNormal>---> sending a packet, length=12, type=12(READDIR), id=6<o:p></o:p></p>
<p class=MsoNormal>---> sending a packet, length=12, type=12(READDIR), id=7<o:p></o:p></p>
<p class=MsoNormal><--- got a packet, length=24, type=101(STATUS), id=6<o:p></o:p></p>
<p class=MsoNormal><--- got a packet, length=24, type=101(STATUS), id=7 <o:p></o:p></p>
<p class=MsoNormal> ^^ hangs here until interrupted<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>…whereas when running against an OpenSSH server,
behavior is quite different:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>---- path on wire is `//home/cduffy/tmp/a'<o:p></o:p></p>
<p class=MsoNormal>---> sending a packet, length=28, type=11(OPENDIR), id=4<o:p></o:p></p>
<p class=MsoNormal><--- got a packet, length=13, type=102(HANDLE), id=4<o:p></o:p></p>
<p class=MsoNormal>---- got file handle 00000000 (4)<o:p></o:p></p>
<p class=MsoNormal>---> sending a packet, length=13, type=12(READDIR), id=5<o:p></o:p></p>
<p class=MsoNormal><--- got a packet, length=501, type=104(NAME), id=5<o:p></o:p></p>
<p class=MsoNormal>---- file name count=5<o:p></o:p></p>
<p class=MsoNormal>---> sending a packet, length=13, type=12(READDIR), id=6<o:p></o:p></p>
<p class=MsoNormal>---> sending a packet, length=13, type=12(READDIR), id=7<o:p></o:p></p>
<p class=MsoNormal><--- got a packet, length=28, type=101(STATUS), id=6<o:p></o:p></p>
<p class=MsoNormal>---- status code=1(EOF), message=End of file<o:p></o:p></p>
<p class=MsoNormal>---- eof<o:p></o:p></p>
<p class=MsoNormal><--- got a packet, length=28, type=101(STATUS), id=7<o:p></o:p></p>
<p class=MsoNormal>---- status code=1(EOF), message=End of file<o:p></o:p></p>
<p class=MsoNormal>drwxr-xr-x 4 cduffy
cduffy 4096 May 4 17:48 .<o:p></o:p></p>
<p class=MsoNormal>drwxr-xr-x 4 cduffy
cduffy 4096 May 4 17:33 ..<o:p></o:p></p>
<p class=MsoNormal>-rw-r--r-- 1 cduffy
cduffy 0 May 4
17:48 A<o:p></o:p></p>
<p class=MsoNormal>drwxr-xr-x 3 cduffy
cduffy 4096 May 4 17:33 b<o:p></o:p></p>
<p class=MsoNormal>drwxr-xr-x 3 cduffy
cduffy 4096 May 4 17:33 d<o:p></o:p></p>
<p class=MsoNormal>---> sending a packet, length=13, type=4(CLOSE), id=8<o:p></o:p></p>
<p class=MsoNormal><--- got a packet, length=24, type=101(STATUS), id=8<o:p></o:p></p>
<p class=MsoNormal>---- status code=0(OK), message=Success<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>It appears that STATUS packets 6 and 7 from OpenSSH signal
EOF, while those from paramiko signal some other status (perhaps OK?) which
lftp doesn’t see fit to comment on, even on a maximal debug level.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Is this difference in behavior intentional? Is it within the
letter of the sftp standard? (Where *<b>is</b>* the sftp standard? I’ve
had a fair bit of trouble googling it up).<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks!<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>--
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>
Charles Duffy<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Systems
Engineering<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><a
href="mailto:charles_duffy@messageone.com">charles_duffy@messageone.com</a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif"'><a
href="http://www.messageone.com/" title="http://www.messageone.com/"><span
style='font-family:"Arial","sans-serif";color:purple'>http://www.messageone.com</span></a><br>
<br>
</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Dell
MessageOne<br>
11044 Research Blvd<br>
Building C, Fifth Floor<br>
Austin, TX 78759</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
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