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