PORTING to IBM OS/390: select() always returning 0 in entropy.c

[Paul Anderson]

Hello,
    I'm attempting to port OpenSSH to IBM's S/390 mainframe. Things have gone well but I have come a little unstuck with the internal PRNG. Although the commands in ssh_prng_cmds are being executed the select() seems to be returning 0 and therefore the cose is assuming that the forked process has timed out. This could be a difference in the way that select is implemented on OS/390. The Unix environment provided by OS/390 has many compatability levels from including several POSIX and XPG variants. I am not a C expert and the debugegr is not very good, has anyone come across smiliar behavior before. A description of the select() on OS/390 can be found at: http://www.s390.ibm.com/bookmgr-cgi/bookmgr.cmd/BOOKS/EDCLB031/4%2e1%2e131?SHELF=CBCBS031

Thanks, Paul Anderson
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