Bug? when doing a PUT on an empty file (Solaris 8) from ksh using ssl

[Adam Ringel]

When I do a PUT on an empty file, it sometimes hangs.
---- Data connection established
---> STOR testfile
<--- 150 Opening BINARY mode data connection for testfile
**** Hangs here *****
---- Closing data socket
<--- 226 Transfer complete.
---> QUIT
---- Closing control socket

The interesting thing is that it works fine for non-empty files, when I do it directly from command line, or when I run the script under truss.
ksh HERE doc
I am using a ksh HERE document to sendthe commands to lftp:

lftp -d <<- EOF
        various sets
        open -u ****,**** -p ** HOST || exit 4
        cd ftpstest || exit 5
        put testfile -o testfile || exit 8
        exit
EOF

VERSION
lftp -version
LFTP | Version 3.4.2 | Copyright (c) 1996-2006 Alexander V. Lukyanov

LFTP is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
There is absolutely no warranty for LFTP.  See COPYING for details.

Send bug reports and questions to <lftp@uniyar.ac.ru>.

Libraries used: Readline 4.3, OpenSSL 0.9.8a 11 Oct 2005

From Truss (fd=4 is control, fd=7 is data, passive mode)
Hang:
19561:  read(7, 0x002840D5, 48)             = 48
19561:    B7 ?BC85DA04 V k v\n11 p * ! y83 rC2E5A4 "C1F5948DFE0EF7 k ,87 j
19561:     E9AC98D0F }83 = 007\t9DDFF4DB10
19561:  write(7, 0x00292200, 59)            = 59
19561:    140301\00101160301\0 08816 ,8A qF518AFA5 I uB99EFA j 7F596 ?87A1
19561:     | D > o "869ECF ? p9683B3D7 nE680 71C18ECD7 a O8FEB l
19561:  read(4, 0x00251F30, 5)              Err#11 EAGAIN
19561:  poll(0x00245820, 1, 300000) (sleeping...)

Working:
19604:  read(7, 0x00290A85, 48)             = 48
19604:    AA80 %BAE7 ^ ;CAC0CFBF\b (  E4 B14C3F783B9 T 8E8 ?9C17BAC5 |CD i
19604:     CD9 0 ~9D - 6 R u m b18ED c P \
19604:  write(7, 0x0029EBB0, 59)            = 59
19604:    140301\00101160301\0 0E9A8F087FB 5 ]F2D5 502E986C9 ? AE8D1 L 7 1
19604:     xDD98B4C5 q\t _B7 K03D8 Z @C8CFA5 bDBC5 7 8D1 h HCDC6
19604:  read(4, 0x0025E328, 5)              Err#11 EAGAIN
19604:  ioctl(2, TIOCGSID, 0xFFBEEFE4)          = 0
19604:      0xFFBEEFE4: 3926
19604:  getsid(0)                   = 3926
19604:  ioctl(2, TIOCGPGRP, 0xFFBEF04C)         = 0
19604:      0xFFBEF04C: 19603
19604:  getpgrp()                   = 19603
19604:  write(2, 0x002528B0, 25)            = 25
19604:     - - - -   C l o s i n g   d a t a   s o c k e t\n

Parameters set before open command
set ftps:initial-prot p
set ftp:ignore-pasv-address yes
set ftp:passive-mode on
set ftp:auto-passive-mode yes
set ftp:ssl-protect-data yes
set ftp:ssl-protect-list yes
set ftp:ssl-use-ccc no
set ftp:ssl-allow-anonymous no
set ssl:verify-certificate yes
set ftp:ssl-allow yes
set ftp:ssl-force yes
set ftp:ssl-auth TLS
set ssl:ca-file "******"

Any help would be greatly appreciated!!!!!!!!!!

Adam Ringel
PE Application Support
703-903-3892 (w)
703-701-3685 (p)