02-19-2014
I will try to explain it better:
This wrapper script will be deployed on all hosts in the company, AIX, Linux and Windows. I do not know which technical users (triggered from applications) are going to use it, so I have to assume it will be anybody.
Currently plenty of applications on those hosts execute a client, that does not have the functionalities of the wrapper. This client does not write log files nor is there any mechanisms that need temporary files in it.
For my local tests, everything went fine, even the compiled Perl script on windows.
But then I noticed, that when another user is using the script (AIX/Linux), the directory of the wrapper, where also the logs and temp files are placed, has to be writable for them and the files will have the user and group of the one executing it.
My goal was to achieve, that the files would be written with the uid of the owner of the script, so I thought about trying something with effective uid or something like that.
I will try your suggestions tomorrow at work, thanks so far.
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LEARN ABOUT DEBIAN
setuid
SETUID(1) General Commands Manual SETUID(1)
NAME
setuid - run a command with a different uid.
SYNOPSIS
setuid username|uid command [ args ]
DESCRIPTION
Setuid changes user id, then executes the specified command. Unlike some versions of su(1), this program doesn't ever ask for a password
when executed with effective uid=root. This program doesn't change the environment; it only changes the uid and then uses execvp() to find
the command in the path, and execute it. (If the command is a script, execvp() passes the command name to /bin/sh for processing.)
For example,
setuid some_user $SHELL
can be used to start a shell running as another user.
Setuid is useful inside scripts that are being run by a setuid-root user -- such as a script invoked with super, so that the script can
execute some commands using the uid of the original user, instead of root. This allows unsafe commands (such as editors and pagers) to be
used in a non-root mode inside a super script. For example, an operator with permission to modify a certain protected_file could use a
super command that simply does:
cp protected_file temp_file
setuid $ORIG_USER ${EDITOR:-/bin/vi} temp_file
cp temp_file protected_file
(Note: don't use this example directly. If the temp_file can somehow be replaced by another user, as might be the case if it's kept in a
temporary directory, there will be a race condition in the time between editing the temporary file and copying it back to the protected
file.)
AUTHOR
Will Deich
local SETUID(1)