1/*
2 * Copyright (c) 1999 - 2000 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
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 *
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the Institute nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include <config.h>
35
36#include "roken.h"
37#include "getarg.h"
38
39static int flags;
40static int family;
41static int socktype;
42
43static int verbose_counter;
44static int version_flag;
45static int help_flag;
46
47static struct getargs args[] = {
48    {"verbose",	0,	arg_counter,	&verbose_counter,"verbose",	NULL},
49    {"flags",	0,	arg_integer,	&flags,		"flags",	NULL},
50    {"family",	0,	arg_integer,	&family,	"family",	NULL},
51    {"socktype",0,	arg_integer,	&socktype,	"socktype",	NULL},
52    {"version",	0,	arg_flag,	&version_flag,	"print version",NULL},
53    {"help",	0,	arg_flag,	&help_flag,	NULL,		NULL}
54};
55
56static void
57usage(int ret)
58{
59    arg_printusage (args,
60		    sizeof(args) / sizeof(args[0]),
61		    NULL,
62		    "[nodename servname...]");
63    exit (ret);
64}
65
66static void
67doit (const char *nodename, const char *servname)
68{
69    struct addrinfo hints;
70    struct addrinfo *res, *r;
71    int ret;
72
73    if (verbose_counter)
74	printf ("(%s,%s)... ", nodename ? nodename : "null", servname);
75
76    memset (&hints, 0, sizeof(hints));
77    hints.ai_flags    = flags;
78    hints.ai_family   = family;
79    hints.ai_socktype = socktype;
80
81    ret = getaddrinfo (nodename, servname, &hints, &res);
82    if (ret)
83	errx(1, "error: %s\n", gai_strerror(ret));
84
85    if (verbose_counter)
86	printf ("\n");
87
88    for (r = res; r != NULL; r = r->ai_next) {
89	char addrstr[256];
90
91	if (inet_ntop (r->ai_family,
92		       socket_get_address (r->ai_addr),
93		       addrstr, sizeof(addrstr)) == NULL) {
94	    if (verbose_counter)
95		printf ("\tbad address?\n");
96	    continue;
97	}
98	if (verbose_counter) {
99	    printf ("\tfamily = %d, socktype = %d, protocol = %d, "
100		    "address = \"%s\", port = %d",
101		    r->ai_family, r->ai_socktype, r->ai_protocol,
102		    addrstr,
103		    ntohs(socket_get_port (r->ai_addr)));
104	    if (r->ai_canonname)
105		printf (", canonname = \"%s\"", r->ai_canonname);
106	    printf ("\n");
107	}
108    }
109    freeaddrinfo (res);
110}
111
112int
113main(int argc, char **argv)
114{
115    int optidx = 0;
116    int i;
117
118    setprogname (argv[0]);
119
120    if (getarg (args, sizeof(args) / sizeof(args[0]), argc, argv,
121		&optidx))
122	usage (1);
123
124    if (help_flag)
125	usage (0);
126
127    if (version_flag) {
128	fprintf (stderr, "%s from %s-%s\n", getprogname(), PACKAGE, VERSION);
129	return 0;
130    }
131
132    argc -= optidx;
133    argv += optidx;
134
135    if (argc % 2 != 0)
136	usage (1);
137
138    for (i = 0; i < argc; i += 2) {
139	const char *nodename = argv[i];
140
141	if (strcmp (nodename, "null") == 0)
142	    nodename = NULL;
143
144	doit (nodename, argv[i+1]);
145    }
146    return 0;
147}
148