[100252] in RedHat Linux List
how do file permissions work? I can't copy in my Java EXEC() call
daemon@ATHENA.MIT.EDU (Justin Kuntz)
Thu Nov 19 12:29:06 1998
From: "Justin Kuntz" <jkuntz@prominic.com>
To: redhat-list@redhat.com
Date: Thu, 19 Nov 1998 10:48:04 -0600
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com
OK,
*NOW* I am officially confused. For the past 8 hours I have been pulling
my hair out wondering why my Java program's call to Exec() fails on a
simple cp command. The JVM is executing as root. Does it not, then, spawn
processes as root also?
I think I don't understand how 'cp' works with the UNIX filesystem. I am
trying to automate the configuration of our user account management through
a distributed Java framework. I realize many of you would think I am crazy
for not knowning enough about Perl to do this... but I have my reasons for
doing it this way.
I have tried every variation of command-line arguments that I can think of
to go along with 'cp'. All of these commands do EXACTLY what I would
expect at a prompt when I type them in directly -- meaning, the files get
copied and everything. All of my other commands seem to work fine from the
Exec() call I am making.
11/19/98 05:32:03 AM EXEC rc=256 cmd=cp -fadp /home/ftp/bin/*
/home/KKonnector/bin
The /home/ftp/bin, etc, and lib dirctories have very restrictive access
permissions. As you probably can guess, this is (from what I understand)
the configuration to get someone 'restricted' FTP access so they cannot
traverse the rest of the filesystem. I am sure my command is failing
because of something I do not understand about the access permissions, and
I am hoping one of you can help me solve this... quickly! I am already
very late getting this system operational.
Incidentally, I will be making the Java source code available if anyone is
interested.
Thank you,
Justin Kuntz
11/19/98 05:31:54 AM VHostUserAgent starting
11/19/98 05:31:57 AM Read /etc/passwd
11/19/98 05:31:57 AM ** START Processing User: KKonnector
11/19/98 05:31:57 AM makeNoShellUserAccount()
11/19/98 05:31:57 AM addUserAccount()
11/19/98 05:31:58 AM EXEC rc=256 cmd=mkdir /home/KKonnector
11/19/98 05:31:58 AM EXEC rc=256 cmd=mkdir /home/KKonnector/html
11/19/98 05:31:58 AM EXEC rc=256 cmd=mkdir /home/KKonnector/html-logs
11/19/98 05:31:59 AM EXEC rc=256 cmd=mkdir /home/KKonnector/bin
11/19/98 05:31:59 AM EXEC rc=256 cmd=mkdir /home/KKonnector/etc
11/19/98 05:31:59 AM EXEC rc=256 cmd=mkdir /home/KKonnector/lib
11/19/98 05:32:00 AM EXEC rc=0 cmd=chown KKonnector
/home/KKonnector/html
11/19/98 05:32:01 AM EXEC rc=0 cmd=chown KKonnector
/home/KKonnector/html-logs
11/19/98 05:32:01 AM EXEC rc=0 cmd=chown root.root
/home/KKonnector/bin
11/19/98 05:32:01 AM EXEC rc=0 cmd=chown root.root
/home/KKonnector/etc
11/19/98 05:32:02 AM EXEC rc=0 cmd=chown root.root
/home/KKonnector/lib
11/19/98 05:32:02 AM EXEC rc=0 cmd=chmod 111 /home/KKonnector/bin
11/19/98 05:32:02 AM EXEC rc=0 cmd=chmod 111 /home/KKonnector/etc
11/19/98 05:32:03 AM EXEC rc=0 cmd=chmod 111 /home/KKonnector/lib
11/19/98 05:32:03 AM EXEC rc=256 cmd=cp -fadp /home/ftp/bin/*
/home/KKonnector/bin
11/19/98 05:32:04 AM EXEC rc=256 cmd=cp -fadp /home/ftp/etc/*
/home/KKonnector/etc
11/19/98 05:32:04 AM EXEC rc=256 cmd=cp -fadp /home/ftp/lib/*
/home/KKonnector/lib
11/19/98 05:32:05 AM EXEC rc=0 cmd=touch /home/KKonnector/.rhosts
11/19/98 05:32:06 AM EXEC rc=0 cmd=touch /home/KKonnector/.forward
11/19/98 05:32:06 AM EXEC rc=0 cmd=chown root.root
/home/KKonnector/.rhosts
11/19/98 05:32:07 AM EXEC rc=0 cmd=chown root.root
/home/KKonnector/.forward
11/19/98 05:32:07 AM EXEC rc=0 cmd=chmod 400 /home/KKonnector/.rhosts
11/19/98 05:32:08 AM EXEC rc=0 cmd=chmod 400
/home/KKonnector/.forward
11/19/98 05:32:08 AM ** END Processing User: KKonnector
11/19/98 05:32:08 AM **** PROCESSING COMPLETE ****
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