/* $NetBSD: idn-lookup.c,v 1.2 2017/01/28 21:31:50 christos Exp $ */
/*
* Copyright (c) 2004 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <assert.h>
#include <err.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <krb5/getarg.h>
#include <krb5/roken.h>
#include "windlocl.h"
static int version_flag = 0;
static int help_flag = 0;
static int
is_separator(uint32_t u)
{
return u == 0x002E || u == 0x3002;
}
static void
lookup(const char *name)
{
unsigned i;
char encoded[1024];
char *ep;
int ret;
struct addrinfo hints;
struct addrinfo *ai;
size_t u_len = strlen(name);
uint32_t *u = malloc(u_len * sizeof(uint32_t));
size_t norm_len = u_len * 2;
uint32_t *norm = malloc(norm_len * sizeof(uint32_t));
if (u == NULL && u_len != 0)
errx(1, "malloc failed");
if (norm == NULL && norm_len != 0)
errx(1, "malloc failed");
ret = wind_utf8ucs4(name, u, &u_len);
if (ret)
errx(1, "utf8 conversion failed");
ret = wind_stringprep(u, u_len, norm, &norm_len, WIND_PROFILE_NAME);
if (ret)
errx(1, "stringprep failed");
free(u);
ep = encoded;
for (i = 0; i < norm_len; ++i) {
unsigned j;
size_t len;
for (j = i; j < norm_len && !is_separator(norm[j]); ++j)
;
len = sizeof(encoded) - (ep - encoded);
ret = wind_punycode_label_toascii(norm + i, j - i, ep, &len);
if (ret)
errx(1, "punycode failed");
ep += len;
*ep++ = '.';
i = j;
}
*ep = '\0';
free(norm);
printf("Converted \"%s\" into \"%s\"\n", name, encoded);
memset(&hints, 0, sizeof(hints));
hints.ai_flags = AI_CANONNAME;
ret = getaddrinfo(encoded, NULL, &hints, &ai);
if(ret)
errx(1, "getaddrinfo failed: %s", gai_strerror(ret));
printf("canonical-name: %s\n", ai->ai_canonname);
freeaddrinfo(ai);
}
static struct getargs args[] = {
{"version", 0, arg_flag, &version_flag,
"print version", NULL },
{"help", 0, arg_flag, &help_flag,
NULL, NULL }
};
static void
usage (int ret)
{
arg_printusage(args, sizeof(args)/sizeof(args[0]), NULL,
"dns-names ...");
exit (ret);
}
int
main(int argc, char **argv)
{
int optidx = 0;
unsigned i;
setprogname (argv[0]);
if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
usage(1);
if (help_flag)
usage (0);
if(version_flag){
print_version(NULL);
exit(0);
}
argc -= optidx;
argv += optidx;
if (argc == 0)
usage(1);
for (i = 0; i < argc; ++i)
lookup(argv[i]);
return 0;
}