I have a daemon on a Linux system that supports a number of Windows clients. Among the functions is to send e-mails, which is sufficiently complicated that I fork() a separate process which gets setuid to a lesser user, and calls a python script which does the actual formatting and emailing (the daemon is written in C). I want to save a copy of the email in a particular directory which is accessible to the Windows clients via samba.
The strange thing is that even with the right user-id, I cannot seem to write to the directory, getting an IOError exception. Changing the directory to world-writable fixes this. I can confirm the uid and gid for the script by having the script print these values just before trying to create/write the file. Becoming the same lesser user, I have no problem writing a file to the same directory. Is there anything that I can do to diagnose why this script is failing? For various reasons I don't want to make the directory world- writable. This is on a Debian "squeeze" system, with python 2.5. Thanks for any insights! -- http://mail.python.org/mailman/listinfo/python-list
