From owner-freebsd-questions  Wed Nov 21 22:56: 4 2001
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Date: Thu, 22 Nov 2001 07:55:52 +0100
From: Rogier Steehouder <r.j.s@gmx.net>
To: Dave VanAuken <dave@hawk-systems.com>
Cc: questions@FreeBSD.ORG
Subject: Re: determine user home directory from non-priv user
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	Dave VanAuken <dave@hawk-systems.com>, questions@FreeBSD.ORG
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On 21-11-2001 14:34 (-0500), Dave VanAuken wrote:
> from a non-priv account we need to determine the home directory of a user...
> used for interaction with web server.
> 
> Obviously pw is out of the question because we do not wish to give priv to the
> web server (despite it being an enclosed system)...  any other system base
> alternatives?
> 
> For example,  need to find out what user "Joe"'s home dir is... we would execute
> our program ("finduserdir" in this example) in the following manner to get the
> desired results:
> 	server# finduserdir Joe
> 	/usr/home/Joe
> 	server#
> 
> Again, we need to do this from the webserver or other non-priv userid.
> 
> Appreciate any comments.
> 
> Dave

There are several possible solutions. As an example, I have attached a
perl CGI script I use myself.

In general, You read /etc/passwd (which should be world-readable) and
select the information you want.

With kind regards, Rogier Steehouder

-- 
                          ___                          _
-O_\                                                  //
 | /               Rogier Steehouder                 //\
/ \                  r.j.s@gmx.net                  //  \
  <---------------------- 25m ---------------------->

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#!/usr/bin/perl
#+-------------------------------------------------------------------+
#| Display a list of all users with homepages (links available)      |
#+-------------------------------------------------------------------+
# HTTP Header:
print("Content-type: text/html\n",
      "Expires: Sat, 11 Aug 2001 00:00:00 GMT\n",
      "Cache-control: no-cache\n\n");

# HTML Body:
print("<ul class=\"userlink\">\n");
while (($user, $name, $dir) = (getpwent())[0,6,7]) {
    if (-d "$dir/www") {
        print("\t<li class=\"userlink\"><a href=\"/~$user/\" class=\"userlink\">$name</a></li>\n");
    }
}
print("</ul>\n");

# vim:set ts=4 sw=4 et :

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