1use strict;
2use warnings;
3use Test::More tests => 31;
4
5use Socket qw(:addrinfo AF_INET SOCK_STREAM IPPROTO_TCP unpack_sockaddr_in inet_aton);
6
7my ( $err, @res );
8
9( $err, @res ) = getaddrinfo( "127.0.0.1", "80", { socktype => SOCK_STREAM } );
10cmp_ok( $err, "==", 0, '$err == 0 for host=127.0.0.1/service=80/socktype=STREAM' );
11cmp_ok( $err, "eq", "", '$err eq "" for host=127.0.0.1/service=80/socktype=STREAM' );
12is( scalar @res, 1,
13    '@res has 1 result' );
14
15is( $res[0]->{family}, AF_INET,
16    '$res[0] family is AF_INET' );
17is( $res[0]->{socktype}, SOCK_STREAM,
18    '$res[0] socktype is SOCK_STREAM' );
19ok( $res[0]->{protocol} == 0 || $res[0]->{protocol} == IPPROTO_TCP,
20    '$res[0] protocol is 0 or IPPROTO_TCP' );
21ok( defined $res[0]->{addr},
22    '$res[0] addr is defined' );
23if (length $res[0]->{addr}) {
24    is_deeply( [ unpack_sockaddr_in $res[0]->{addr} ],
25               [ 80, inet_aton( "127.0.0.1" ) ],
26               '$res[0] addr is {"127.0.0.1", 80}' );
27} else {
28    fail( '$res[0] addr is empty: check $socksizetype' );
29}
30
31# Check actual IV integers work just as well as PV strings
32( $err, @res ) = getaddrinfo( "127.0.0.1", 80, { socktype => SOCK_STREAM } );
33cmp_ok( $err, "==", 0, '$err == 0 for host=127.0.0.1/service=80/socktype=STREAM' );
34is_deeply( [ unpack_sockaddr_in $res[0]->{addr} ],
35           [ 80, inet_aton( "127.0.0.1" ) ],
36           '$res[0] addr is {"127.0.0.1", 80}' );
37
38( $err, @res ) = getaddrinfo( "127.0.0.1", "" );
39cmp_ok( $err, "==", 0, '$err == 0 for host=127.0.0.1' );
40# Might get more than one; e.g. different socktypes
41ok( scalar @res > 0, '@res has results' );
42
43( $err, @res ) = getaddrinfo( "127.0.0.1", undef );
44cmp_ok( $err, "==", 0, '$err == 0 for host=127.0.0.1/service=undef' );
45
46# Test GETMAGIC
47{
48    "127.0.0.1" =~ /(.+)/;
49    ( $err, @res ) = getaddrinfo($1, undef);
50    cmp_ok( $err, "==", 0, '$err == 0 for host=$1' );
51    ok( scalar @res > 0, '@res has results' );
52    is( (unpack_sockaddr_in $res[0]->{addr})[1],
53        inet_aton( "127.0.0.1" ),
54        '$res[0] addr is {"127.0.0.1", ??}' );
55}
56
57( $err, @res ) = getaddrinfo( "", "80", { family => AF_INET, socktype => SOCK_STREAM, protocol => IPPROTO_TCP } );
58cmp_ok( $err, "==", 0, '$err == 0 for service=80/family=AF_INET/socktype=STREAM/protocol=IPPROTO_TCP' );
59is( scalar @res, 1, '@res has 1 result' );
60
61# Just pick the first one
62is( $res[0]->{family}, AF_INET,
63    '$res[0] family is AF_INET' );
64is( $res[0]->{socktype}, SOCK_STREAM,
65    '$res[0] socktype is SOCK_STREAM' );
66ok( $res[0]->{protocol} == 0 || $res[0]->{protocol} == IPPROTO_TCP,
67    '$res[0] protocol is 0 or IPPROTO_TCP' );
68
69# Now some tests of a few well-known internet hosts
70my $goodhost = "cpan.perl.org";
71
72SKIP: {
73    skip "Resolver has no answer for $goodhost", 2 unless gethostbyname( $goodhost );
74
75    ( $err, @res ) = getaddrinfo( "cpan.perl.org", "ftp", { socktype => SOCK_STREAM } );
76    cmp_ok( $err, "==", 0, '$err == 0 for host=cpan.perl.org/service=ftp/socktype=STREAM' );
77    # Might get more than one; e.g. different families
78    ok( scalar @res > 0, '@res has results' );
79}
80
81# Now something I hope doesn't exist - we put it in a known-missing TLD
82my $missinghost = "TbK4jM2M0OS.lm57DWIyu4i";
83
84# Some CPAN testing machines seem to have wildcard DNS servers that reply to
85# any request. We'd better check for them
86
87SKIP: {
88    skip "Resolver has an answer for $missinghost", 1 if gethostbyname( $missinghost );
89
90    # Some OSes return $err == 0 but no results
91    ( $err, @res ) = getaddrinfo( $missinghost, "ftp", { socktype => SOCK_STREAM } );
92    ok( $err != 0 || ( $err == 0 && @res == 0 ),
93        '$err != 0 or @res == 0 for host=TbK4jM2M0OS.lm57DWIyu4i/service=ftp/socktype=SOCK_STREAM' );
94    if( @res ) {
95        # Diagnostic that might help
96        while( my $r = shift @res ) {
97            diag( "family=$r->{family} socktype=$r->{socktype} protocol=$r->{protocol} addr=[" . length( $r->{addr} ) . " bytes]" );
98            diag( "  addr=" . join( ", ", map { sprintf '0x%02x', ord $_ } split m//, $r->{addr} ) );
99        }
100    }
101}
102
103# Numeric addresses with AI_NUMERICHOST should pass (RT95758)
104AI_NUMERICHOST: {
105    # Here we need a port that is open to the world. Not all places have all
106    # the ports. For example Solaris by default doesn't have http/80 in
107    # /etc/services, and that would fail. Let's try a couple of commonly open
108    # ports, and hope one of them will succeed. Conversely this means that
109    # sometimes this will fail.
110    #
111    # An alternative method would be to manually parse /etc/services and look
112    # for enabled services but that's kind of yuck, too.
113    my @port = (80, 7, 22, 25, 88, 123, 110, 389, 443, 445, 873, 2049, 3306);
114    foreach my $port ( @port ) {
115        ( $err, @res ) = getaddrinfo( "127.0.0.1", $port, { flags => AI_NUMERICHOST, socktype => SOCK_STREAM } );
116        if( $err == 0 ) {
117            ok( $err == 0, "\$err == 0 for 127.0.0.1/$port/flags=AI_NUMERICHOST" );
118            last AI_NUMERICHOST;
119        }
120    }
121    fail( "$err for 127.0.0.1/$port[-1]/flags=AI_NUMERICHOST (failed for ports @port)" );
122}
123
124# Now check that names with AI_NUMERICHOST fail
125
126SKIP: {
127    skip "Resolver has no answer for $goodhost", 1 unless gethostbyname( $goodhost );
128
129    ( $err, @res ) = getaddrinfo( $goodhost, "ftp", { flags => AI_NUMERICHOST, socktype => SOCK_STREAM } );
130    ok( $err != 0, "\$err != 0 for host=$goodhost/service=ftp/flags=AI_NUMERICHOST/socktype=SOCK_STREAM" );
131}
132
133# Some sanity checking on the hints hash
134ok( defined eval { getaddrinfo( "127.0.0.1", "80", undef ); 1 },
135    'getaddrinfo() with undef hints works' );
136ok( !defined eval { getaddrinfo( "127.0.0.1", "80", "hints" ); 1 },
137    'getaddrinfo() with string hints dies' );
138ok( !defined eval { getaddrinfo( "127.0.0.1", "80", [] ); 1 },
139    'getaddrinfo() with ARRAY hints dies' );
140
141# Ensure it doesn't segfault if args are missing
142
143( $err, @res ) = getaddrinfo();
144ok( defined $err, '$err defined for getaddrinfo()' );
145
146( $err, @res ) = getaddrinfo( "127.0.0.1" );
147ok( defined $err, '$err defined for getaddrinfo("127.0.0.1")' );
148