| 1 | package Exim::Runtest; |
| 2 | use strict; |
| 3 | use warnings; |
| 4 | use IO::Socket::INET; |
| 5 | use Carp; |
| 6 | |
| 7 | use List::Util qw'shuffle'; |
| 8 | |
| 9 | |
| 10 | # find a group name, preferrable 'mail', but |
| 11 | # use some other random name if 'mail' isn't a valid group |
| 12 | # name |
| 13 | sub mailgroup { |
| 14 | my $group = shift; |
| 15 | |
| 16 | croak "Need a group *name*, not a numeric group id." |
| 17 | if $group =~ /^\d+$/; |
| 18 | |
| 19 | return $group if getgrnam $group; |
| 20 | |
| 21 | my @groups; |
| 22 | setgrent or die "setgrent: $!\n"; |
| 23 | push @groups, $_ while defined($_ = getgrent); |
| 24 | endgrent; |
| 25 | return (shuffle @groups)[0]; |
| 26 | } |
| 27 | |
| 28 | sub dynamic_socket { |
| 29 | my $socket; |
| 30 | for (my $port = 1024; $port < 65000; $port++) { |
| 31 | $socket = IO::Socket::INET->new( |
| 32 | LocalHost => '127.0.0.1', |
| 33 | LocalPort => $port, |
| 34 | Listen => 10, |
| 35 | ReuseAddr => 1, |
| 36 | ) and return $socket; |
| 37 | } |
| 38 | croak 'Can not allocate a free port.'; |
| 39 | } |
| 40 | |
| 41 | 1; |