1 /* $NetBSD: getifaddrs-test.c,v 1.1.1.2 2014/04/24 12:45:52 pettai Exp $ */
2
3 /*
4 * Copyright (c) 2009 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Portions Copyright (c) 2009, Secure Endpoints Inc. All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 *
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 *
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 *
21 * 3. Neither the name of the Institute nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38 #include <config.h>
39 #include <err.h>
40 #include <krb5/getarg.h>
41
42 #include <krb5/roken.h>
43
44 #include <ifaddrs.h>
45
46 static int verbose_counter;
47 static int version_flag;
48 static int help_flag;
49
50 static struct getargs args[] = {
51 {"verbose", 0, arg_counter, &verbose_counter,"verbose", NULL},
52 {"version", 0, arg_flag, &version_flag, "print version",NULL},
53 {"help", 0, arg_flag, &help_flag, NULL, NULL}
54 };
55
56 static void
usage(int ret)57 usage(int ret)
58 {
59 arg_printusage (args,
60 sizeof(args) / sizeof(args[0]),
61 NULL, "");
62 exit (ret);
63 }
64
65
66 static void
print_addr(const char * s,struct sockaddr * sa)67 print_addr(const char *s, struct sockaddr *sa)
68 {
69 int i;
70 printf(" %s=%d/", s, sa->sa_family);
71 #ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
72 for(i = 0; i < sa->sa_len - ((long)sa->sa_data - (long)&sa->sa_family); i++)
73 printf("%02x", ((unsigned char*)sa->sa_data)[i]);
74 #else
75 for(i = 0; i < sizeof(sa->sa_data); i++)
76 printf("%02x", ((unsigned char*)sa->sa_data)[i]);
77 #endif
78 printf("\n");
79 }
80
81 static void
print_ifaddrs(struct ifaddrs * x)82 print_ifaddrs(struct ifaddrs *x)
83 {
84 struct ifaddrs *p;
85
86 for(p = x; p; p = p->ifa_next) {
87 if (verbose_counter) {
88 printf("%s\n", p->ifa_name);
89 printf(" flags=%x\n", p->ifa_flags);
90 if(p->ifa_addr)
91 print_addr("addr", p->ifa_addr);
92 if(p->ifa_dstaddr)
93 print_addr("dstaddr", p->ifa_dstaddr);
94 if(p->ifa_netmask)
95 print_addr("netmask", p->ifa_netmask);
96 printf(" %p\n", p->ifa_data);
97 }
98 }
99 }
100
101 int
main(int argc,char ** argv)102 main(int argc, char **argv)
103 {
104 struct ifaddrs *addrs = NULL;
105 int ret, optidx = 0;
106
107 setprogname (argv[0]);
108
109 if (getarg (args, sizeof(args) / sizeof(args[0]), argc, argv,
110 &optidx))
111 usage (1);
112
113 if (help_flag)
114 usage (0);
115
116 if (version_flag) {
117 fprintf (stderr, "%s from %s-%s\n", getprogname(), PACKAGE, VERSION);
118 return 0;
119 }
120
121 if (rk_SOCK_INIT())
122 errx(1, "Couldn't initialize sockets. Err=%d\n", rk_SOCK_ERRNO);
123
124 ret = getifaddrs(&addrs);
125 if (ret != 0)
126 err(1, "getifaddrs");
127
128 if (addrs == NULL)
129 errx(1, "address == NULL");
130
131 print_ifaddrs(addrs);
132
133 /* Check that freeifaddrs doesn't crash */
134 freeifaddrs(addrs);
135
136 rk_SOCK_EXIT();
137
138 return 0;
139 }
140