User::pwent 5.8.8

User::pwent is a Perl interface getpw*() functions.

SYNOPSIS

use User::pwent;
$pw = getpwnam(daemon) || die "No daemon user";
if ( $pw->uid == 1 && $pw->dir =~ m#^/(bin|tmp)?z#s ) {
print "gid 1 on root dir";
}

$real_shell = $pw->shell || /bin/sh;

for (($fullname, $office, $workphone, $homephone) =
split /s*,s*/, $pw->gecos)
{
s/&/ucfirst(lc($pw->name))/ge;
}

use User::pwent qw(:FIELDS);
getpwnam(daemon) || die "No daemon user";
if ( $pw_uid == 1 && $pw_dir =~ m#^/(bin|tmp)?z#s ) {
print "gid 1 on root dir";
}

$pw = getpw($whoever);

use User::pwent qw/:DEFAULT pw_has/;
if (pw_has(qw[gecos expire quota])) { .... }
if (pw_has("name uid gid passwd")) { .... }
print "Your struct pwd has: ", scalar pw_has(), "n";

This modules default exports override the core getpwent(), getpwuid(), and getpwnam() functions, replacing them with versions that return User::pwent objects. This object has methods that return the similarly named structure field name from the Cs passwd structure from pwd.h, stripped of their leading "pw_" parts, namely name, passwd, uid, gid, change, age, quota, comment, class, gecos, dir, shell, and expire. The passwd, gecos, and shell fields are tainted when running in taint mode.

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 pw_ in front their method names. Thus, $passwd_obj->shell corresponds to $pw_shell if you import the fields.

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. The built-ins are always still available via the CORE:: pseudo-package.