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);
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 funtion 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.