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Introduce print_inet_addr
[strace] / tests / ip_mreq.c
1 /*
2  * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
3  * Copyright (c) 2015-2017 The strace developers.
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. The name of the author may not be used to endorse or promote products
15  *    derived from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28
29 #include "tests.h"
30 #include <netinet/in.h>
31
32 #if defined IP_ADD_MEMBERSHIP && defined IPV6_ADD_MEMBERSHIP \
33  && defined IPV6_JOIN_ANYCAST && defined HAVE_IF_INDEXTONAME
34
35 # include <stdio.h>
36 # include <unistd.h>
37 # include <sys/socket.h>
38 # include <arpa/inet.h>
39 # include <net/if.h>
40
41 int
42 main(void)
43 {
44         static const char multi4addr[] = "224.0.0.3";
45         static const char multi6addr[] = "ff01::c";
46         static const char interface[] = "127.0.0.1";
47
48         TAIL_ALLOC_OBJECT_CONST_PTR(struct ip_mreq, m4);
49         TAIL_ALLOC_OBJECT_CONST_PTR(struct ipv6_mreq, m6);
50         unsigned int i;
51         int rc;
52
53         inet_pton(AF_INET, multi4addr, &m4->imr_multiaddr);
54         inet_pton(AF_INET, interface, &m4->imr_interface);
55         inet_pton(AF_INET6, multi6addr, &m6->ipv6mr_multiaddr);
56
57         m6->ipv6mr_interface = if_nametoindex("lo");
58         if (!m6->ipv6mr_interface)
59                 perror_msg_and_skip("lo");
60
61         (void) close(0);
62         if (socket(AF_INET, SOCK_DGRAM, 0))
63                 perror_msg_and_skip("socket");
64
65         struct {
66                 int level;
67                 const char *str_level;
68                 int optname;
69                 const char *str_optname;
70                 void *optval;
71                 unsigned int optsize;
72         } short_any[] = {
73                 {
74                         ARG_STR(SOL_IP), ARG_STR(IP_ADD_MEMBERSHIP),
75                         m4, sizeof(*m4)
76                 },
77                 {
78                         ARG_STR(SOL_IP), ARG_STR(IP_DROP_MEMBERSHIP),
79                         m4, sizeof(*m4)
80                 },
81                 {
82                         ARG_STR(SOL_IPV6), ARG_STR(IPV6_ADD_MEMBERSHIP),
83                         m6, sizeof(*m6)
84                 },
85                 {
86                         ARG_STR(SOL_IPV6), ARG_STR(IPV6_DROP_MEMBERSHIP),
87                         m6, sizeof(*m6)
88                 },
89                 {
90                         ARG_STR(SOL_IPV6), ARG_STR(IPV6_JOIN_ANYCAST),
91                         m6, sizeof(*m6)
92                 },
93                 {
94                         ARG_STR(SOL_IPV6), ARG_STR(IPV6_LEAVE_ANYCAST),
95                         m6, sizeof(*m6)
96                 }
97         };
98
99         for (i = 0; i < ARRAY_SIZE(short_any); ++i) {
100                 rc = setsockopt(0, short_any[i].level, short_any[i].optname,
101                                 short_any[i].optval, 1);
102                 printf("setsockopt(0, %s, %s, \"\\%hho\", 1) = %s\n",
103                        short_any[i].str_level, short_any[i].str_optname,
104                        * (unsigned char *) short_any[i].optval,
105                        sprintrc(rc));
106
107                 rc = setsockopt(0, short_any[i].level, short_any[i].optname,
108                                 short_any[i].optval + 1, short_any[i].optsize);
109                 printf("setsockopt(0, %s, %s, %p, %u) = %s\n",
110                        short_any[i].str_level, short_any[i].str_optname,
111                        short_any[i].optval + 1, short_any[i].optsize,
112                        sprintrc(rc));
113         }
114
115         struct {
116                 int optname;
117                 const char *str_optname;
118         } long_ip[] = {
119                 { ARG_STR(IP_ADD_MEMBERSHIP) },
120                 { ARG_STR(IP_DROP_MEMBERSHIP) }
121         }, long_ipv6[] = {
122                 { ARG_STR(IPV6_ADD_MEMBERSHIP) },
123                 { ARG_STR(IPV6_DROP_MEMBERSHIP) },
124                 { ARG_STR(IPV6_JOIN_ANYCAST) },
125                 { ARG_STR(IPV6_LEAVE_ANYCAST) }
126         };
127
128         for (i = 0; i < ARRAY_SIZE(long_ip); ++i) {
129                 rc = setsockopt(0, SOL_IP, long_ip[i].optname,
130                                 m4, sizeof(*m4));
131                 printf("setsockopt(0, SOL_IP, %s"
132                        ", {imr_multiaddr=inet_addr(\"%s\")"
133                        ", imr_interface=inet_addr(\"%s\")}, %u) = %s\n",
134                        long_ip[i].str_optname, multi4addr,
135                        interface, (unsigned) sizeof(*m4), sprintrc(rc));
136         }
137
138         for (i = 0; i < ARRAY_SIZE(long_ipv6); ++i) {
139                 rc = setsockopt(0, SOL_IPV6, long_ipv6[i].optname,
140                                 m6, sizeof(*m6));
141                 printf("setsockopt(0, SOL_IPV6, %s"
142                        ", {inet_pton(AF_INET6, \"%s\", &ipv6mr_multiaddr)"
143                        ", ipv6mr_interface=if_nametoindex(\"lo\")}"
144                        ", %u) = %s\n",
145                        long_ipv6[i].str_optname, multi6addr,
146                        (unsigned) sizeof(*m6), sprintrc(rc));
147         }
148
149         puts("+++ exited with 0 +++");
150         return 0;
151 }
152
153 #else
154
155 SKIP_MAIN_UNDEFINED("IP_ADD_MEMBERSHIP && IPV6_ADD_MEMBERSHIP"
156                     " && IPV6_JOIN_ANYCAST && HAVE_IF_INDEXTONAME")
157
158 #endif