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