| 1 | /*
|
|---|
| 2 | * Copyright (c) 2012 Jiri Svoboda
|
|---|
| 3 | * All rights reserved.
|
|---|
| 4 | *
|
|---|
| 5 | * Redistribution and use in source and binary forms, with or without
|
|---|
| 6 | * modification, are permitted provided that the following conditions
|
|---|
| 7 | * are met:
|
|---|
| 8 | *
|
|---|
| 9 | * - Redistributions of source code must retain the above copyright
|
|---|
| 10 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 11 | * - 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 | * - 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 | /** @addtogroup dnsres
|
|---|
| 30 | * @{
|
|---|
| 31 | */
|
|---|
| 32 | /**
|
|---|
| 33 | * @file
|
|---|
| 34 | */
|
|---|
| 35 |
|
|---|
| 36 | #include <stdio.h>
|
|---|
| 37 | #include <stdlib.h>
|
|---|
| 38 | #include <errno.h>
|
|---|
| 39 |
|
|---|
| 40 | #include "dns_msg.h"
|
|---|
| 41 | #include "dns_std.h"
|
|---|
| 42 | #include "query.h"
|
|---|
| 43 |
|
|---|
| 44 | #define NAME "dnsres"
|
|---|
| 45 |
|
|---|
| 46 | static int addr_format(inet_addr_t *addr, char **bufp)
|
|---|
| 47 | {
|
|---|
| 48 | int rc;
|
|---|
| 49 |
|
|---|
| 50 | rc = asprintf(bufp, "%d.%d.%d.%d", addr->ipv4 >> 24,
|
|---|
| 51 | (addr->ipv4 >> 16) & 0xff, (addr->ipv4 >> 8) & 0xff,
|
|---|
| 52 | addr->ipv4 & 0xff);
|
|---|
| 53 |
|
|---|
| 54 | if (rc < 0)
|
|---|
| 55 | return ENOMEM;
|
|---|
| 56 |
|
|---|
| 57 | return EOK;
|
|---|
| 58 | }
|
|---|
| 59 |
|
|---|
| 60 | int main(int argc, char *argv[])
|
|---|
| 61 | {
|
|---|
| 62 | dns_host_info_t *hinfo;
|
|---|
| 63 | char *astr;
|
|---|
| 64 | int rc;
|
|---|
| 65 |
|
|---|
| 66 | printf("%s: DNS Resolution Service\n", NAME);
|
|---|
| 67 | rc = dns_name2host(argc < 2 ? "helenos.org" : argv[1], &hinfo);
|
|---|
| 68 | printf("dns_name2host() -> rc = %d\n", rc);
|
|---|
| 69 |
|
|---|
| 70 | if (rc == EOK) {
|
|---|
| 71 | rc = addr_format(&hinfo->addr, &astr);
|
|---|
| 72 | if (rc != EOK) {
|
|---|
| 73 | dns_hostinfo_destroy(hinfo);
|
|---|
| 74 | printf("Out of memory\n");
|
|---|
| 75 | return ENOMEM;
|
|---|
| 76 | }
|
|---|
| 77 |
|
|---|
| 78 | printf("hostname: %s\n", hinfo->name);
|
|---|
| 79 | printf("IPv4 address: %s\n", astr);
|
|---|
| 80 | free(astr);
|
|---|
| 81 | dns_hostinfo_destroy(hinfo);
|
|---|
| 82 | }
|
|---|
| 83 |
|
|---|
| 84 | return 0;
|
|---|
| 85 | }
|
|---|
| 86 |
|
|---|
| 87 | /** @}
|
|---|
| 88 | */
|
|---|
