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User::grent(3)
NAME
  User::grent - by-name interface to Perl's built-in getgr*() functions

SYNOPSIS
   use User::grent;
   $gr = getgrgid(0) or die "No group zero";
   if ( $gr->name eq 'wheel' && @{$gr->members} > 1 ) {
       print "gid zero name wheel, with other members";
   }

   use User::grent qw(:FIELDS);
   getgrgid(0) or die "No group zero";
   if ( $gr_name eq 'wheel' && @gr_members > 1 ) {
       print "gid zero name wheel, with other members";
   }

   $gr = getgr($whoever);

DESCRIPTION
  This module's default exports override the core getgrent(), getgruid(), and
  getgrnam() functions, replacing them with versions that return
  "User::grent" objects.  This object has methods that return the similarly
  named structure field name from the C's passwd structure from grp.h; namely
  name, passwd, gid, and members (not mem).  The first three return scalars,
  the last an array reference.

  You may also import all the structure fields directly into your namespace
  as regular variables using the :FIELDS import tag.  (Note that this still
  overrides your core functions.)  Access these fields as variables named
  with a preceding "gr_".  Thus, "$group_obj->gid()" corresponds to $gr_gid
  if you import the fields.  Array references are available as regular array
  variables, so "@{ $group_obj->members() }" would be simply @gr_members.

  The getpw() function is a simple front-end that forwards a numeric argument
  to getpwuid() and the rest to getpwnam().

  To access this functionality without the core overrides, pass the "use" an
  empty import list, and then access function functions with their full
  qualified names.  On the other hand, the built-ins are still available via
  the "CORE::" pseudo-package.

NOTE
  While this class is currently implemented using the Class::Struct module to
  build a struct-like class, you shouldn't rely upon this.

AUTHOR
  Tom Christiansen

Index for Section 3

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