Re: sftp and PASE on IBM i V6R1

[Scott Klement <midrange-l@xxxxxxxxxxxxxxxx>]

Hi Karl,

The message "Symbol __pthread (number 93) is not exported. . ." means 
that the version of the pthread library on your system does not match 
the one that sftp was compiled for.

(You should receive the same error if you run sftp interactively, 
instead of running it via Expect.)

To try to put this in terms you might already understand:  The pthread 
library (/usr/lib/libpthreads.a) is very similar to what we call a 
*SRVPGM in the ILE environment.  The sftp program is trying to call a 
"symbol" (=exported procedure) from that library (=service program) but 
it doesn't have the same export number.

Since sftp is typically provided by IBM, you may have installed a newer 
version of sftp that's not supported by the operating system you 
installed it onto. (For example, maybe you installed a copy of OpenSSH 
that requires V5R4, but you're trying to install it onto V5R3)  Or 
perhaps you are running on a current operating system, but have an older 
version of PASE installed?  (for example, maybe you're running V5R3, but 
have the V5R2 version of PASE installed.)  Those are the sorts of things 
to look for.

Hope that helps.


On 7/17/2012 11:36 AM, Karl wrote:
> Hi ,
>
> We are using PASE environment to upload some files to an external secure
> ftp server over SSH.
> Our server is V6R1
>
> We are using the example from Scott with the expect tool.
>
> The script is pretty simple and it does work fine on many other IBM i
> server.
>
> We load variables with ADDENVVAR and call QP2TERM
>
> Call QP2Shell Parm('/QOpenSys/bin/sh' '-c' &Parm3)    ... and we have the
> following error. (I also try the command interactivly... same error)
>
>
>
> spawn sftp MyUser@xxxxxxxxxxxxxxxxxxxxxxxxx
> Could not load program sftp:
> Symbol resolution failed for sftp because:
>   Symbol __pthread (number 93) is not exported from dependent
>     module /usr/lib/libpthreads.a(shr_xpg5.o).
> Examine .loader section symbols with the 'dump -Tv' command.
>
>
>
> Licence programs 5733SC1 *Base and Option 1 are installed. (I also try to
> reinstall then, but I still have the same error)
>
>
> 5733SC1    *BASE   IBM Portable Utilities for i5/OS
> 5733SC1    1       OpenSSH, OpenSSL, zlib
>
> Does someone know what this error means?
> I did some search on google but many unresolved post.
>
> I know I little bit how Pase work, but I'm not familiar with.
>
>
> Thanks for your help.
>
> Karl
>
> **********************************
> Here's what my "Put" script looks like.
>
> #!/bin/sh
>
>
>
> build_script() {
>
>
>
> cat <<End-of-message
>
> #!/usr/local/bin/expect -f
>
> spawn sftp ${USER}@${SFTPHOST}
>
> expect "connecting (yes/no)?" { send "yes\n"; expect "Password:" }
>   "Password:"
> send "${PASSWORD}\n"
>
> expect "sftp>"
>
> send "put ${FROMFILE} ${TOFILE} \n"
>
> expect "sftp>"
>
> send "quit\n"
>
> exit
>
> End-of-message
>
>
>
> }