--- /dev/null
+/*
+ *
+ * IP-address/hostname to country converter.
+ *
+ * Problem; you want to know where IP a.b.c.d is located.
+ *
+ * Use ares_gethostbyname ("d.c.b.a.zz.countries.nerd.dk")
+ * and get the CNAME (host->h_name). Result will be:
+ * CNAME = zz<CC>.countries.nerd.dk with address 127.0.x.y (ver 1) or
+ * CNAME = <a.b.c.d>.zz.countries.nerd.dk with address 127.0.x.y (ver 2)
+ *
+ * The 2 letter country code is in <CC> and the ISO-3166 country
+ * number is in x.y (number = x*256 + y). Version 2 of the protocol is missing
+ * the <CC> number.
+ *
+ * Ref: http://countries.nerd.dk/more.html
+ *
+ * Written by G. Vanem <gvanem@yahoo.no> 2006, 2007
+ *
+ * NB! This program may not be big-endian aware.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+
+#if defined(WIN32) && !defined(WATT32)
+ #include <winsock.h>
+#else
+ #include <arpa/inet.h>
+ #include <netinet/in.h>
+ #include <netdb.h>
+#endif
+
+#include "ares.h"
+#include "ares_getopt.h"
+#include "ares_nowarn.h"
+
+#ifndef HAVE_STRDUP
+# include "ares_strdup.h"
+# define strdup(ptr) ares_strdup(ptr)
+#endif
+
+#ifndef HAVE_STRCASECMP
+# include "ares_strcasecmp.h"
+# define strcasecmp(p1,p2) ares_strcasecmp(p1,p2)
+#endif
+
+#ifndef HAVE_STRNCASECMP
+# include "ares_strcasecmp.h"
+# define strncasecmp(p1,p2,n) ares_strncasecmp(p1,p2,n)
+#endif
+
+#ifndef INADDR_NONE
+#define INADDR_NONE 0xffffffff
+#endif
+
+static const char *usage = "acountry [-vh?] {host|addr} ...\n";
+static const char nerd_fmt[] = "%u.%u.%u.%u.zz.countries.nerd.dk";
+static const char *nerd_ver1 = nerd_fmt + 14; /* .countries.nerd.dk */
+static const char *nerd_ver2 = nerd_fmt + 11; /* .zz.countries.nerd.dk */
+static int verbose = 0;
+
+#define TRACE(fmt) do { \
+ if (verbose > 0) \
+ printf fmt ; \
+ } WHILE_FALSE
+
+static void wait_ares(ares_channel channel);
+static void callback(void *arg, int status, int timeouts, struct hostent *host);
+static void callback2(void *arg, int status, int timeouts, struct hostent *host);
+static void find_country_from_cname(const char *cname, struct in_addr addr);
+
+static void Abort(const char *fmt, ...)
+{
+ va_list args;
+ va_start(args, fmt);
+ vfprintf(stderr, fmt, args);
+ va_end(args);
+ exit(1);
+}
+
+int main(int argc, char **argv)
+{
+ ares_channel channel;
+ int ch, status;
+
+#if defined(WIN32) && !defined(WATT32)
+ WORD wVersionRequested = MAKEWORD(USE_WINSOCK,USE_WINSOCK);
+ WSADATA wsaData;
+ WSAStartup(wVersionRequested, &wsaData);
+#endif
+
+ status = ares_library_init(ARES_LIB_INIT_ALL);
+ if (status != ARES_SUCCESS)
+ {
+ fprintf(stderr, "ares_library_init: %s\n", ares_strerror(status));
+ return 1;
+ }
+
+ while ((ch = ares_getopt(argc, argv, "dvh?")) != -1)
+ switch (ch)
+ {
+ case 'd':
+#ifdef WATT32
+ dbug_init();
+#endif
+ break;
+ case 'v':
+ verbose++;
+ break;
+ case 'h':
+ case '?':
+ default:
+ Abort(usage);
+ }
+
+ argc -= optind;
+ argv += optind;
+ if (argc < 1)
+ Abort(usage);
+
+ status = ares_init(&channel);
+ if (status != ARES_SUCCESS)
+ {
+ fprintf(stderr, "ares_init: %s\n", ares_strerror(status));
+ return 1;
+ }
+
+ /* Initiate the queries, one per command-line argument. */
+ for ( ; *argv; argv++)
+ {
+ struct in_addr addr;
+ char buf[100];
+
+ /* If this fails, assume '*argv' is a host-name that
+ * must be resolved first
+ */
+ if (ares_inet_pton(AF_INET, *argv, &addr) != 1)
+ {
+ ares_gethostbyname(channel, *argv, AF_INET, callback2, &addr);
+ wait_ares(channel);
+ if (addr.s_addr == INADDR_NONE)
+ {
+ printf("Failed to lookup %s\n", *argv);
+ continue;
+ }
+ }
+
+ sprintf(buf, nerd_fmt,
+ (unsigned int)(addr.s_addr >> 24),
+ (unsigned int)((addr.s_addr >> 16) & 255),
+ (unsigned int)((addr.s_addr >> 8) & 255),
+ (unsigned int)(addr.s_addr & 255));
+ TRACE(("Looking up %s...", buf));
+ fflush(stdout);
+ ares_gethostbyname(channel, buf, AF_INET, callback, buf);
+ }
+
+ wait_ares(channel);
+ ares_destroy(channel);
+
+ ares_library_cleanup();
+
+#if defined(WIN32) && !defined(WATT32)
+ WSACleanup();
+#endif
+
+ return 0;
+}
+
+/*
+ * Wait for the queries to complete.
+ */
+static void wait_ares(ares_channel channel)
+{
+ for (;;)
+ {
+ struct timeval *tvp, tv;
+ fd_set read_fds, write_fds;
+ int nfds;
+
+ FD_ZERO(&read_fds);
+ FD_ZERO(&write_fds);
+ nfds = ares_fds(channel, &read_fds, &write_fds);
+ if (nfds == 0)
+ break;
+ tvp = ares_timeout(channel, NULL, &tv);
+ nfds = select(nfds, &read_fds, &write_fds, NULL, tvp);
+ if (nfds < 0)
+ continue;
+ ares_process(channel, &read_fds, &write_fds);
+ }
+}
+
+/*
+ * This is the callback used when we have the IP-address of interest.
+ * Extract the CNAME and figure out the country-code from it.
+ */
+static void callback(void *arg, int status, int timeouts, struct hostent *host)
+{
+ const char *name = (const char*)arg;
+ const char *cname;
+ char buf[20];
+
+ (void)timeouts;
+
+ if (!host || status != ARES_SUCCESS)
+ {
+ printf("Failed to lookup %s: %s\n", name, ares_strerror(status));
+ return;
+ }
+
+ TRACE(("\nFound address %s, name %s\n",
+ ares_inet_ntop(AF_INET,(const char*)host->h_addr,buf,sizeof(buf)),
+ host->h_name));
+
+ cname = host->h_name; /* CNAME gets put here */
+ if (!cname)
+ printf("Failed to get CNAME for %s\n", name);
+ else
+ find_country_from_cname(cname, *(struct in_addr*)host->h_addr);
+}
+
+/*
+ * This is the callback used to obtain the IP-address of the host of interest.
+ */
+static void callback2(void *arg, int status, int timeouts, struct hostent *host)
+{
+ struct in_addr *addr = (struct in_addr*) arg;
+
+ (void)timeouts;
+ if (!host || status != ARES_SUCCESS)
+ memset(addr, INADDR_NONE, sizeof(*addr));
+ else
+ memcpy(addr, host->h_addr, sizeof(*addr));
+}
+
+struct search_list {
+ int country_number; /* ISO-3166 country number */
+ char short_name[3]; /* A2 short country code */
+ const char *long_name; /* normal country name */
+ };
+
+static const struct search_list *list_lookup(int number, const struct search_list *list, int num)
+{
+ while (num > 0 && list->long_name)
+ {
+ if (list->country_number == number)
+ return (list);
+ num--;
+ list++;
+ }
+ return (NULL);
+}
+
+/*
+ * Ref: ftp://ftp.ripe.net/iso3166-countrycodes.txt
+ */
+static const struct search_list country_list[] = {
+ { 4, "af", "Afghanistan" },
+ { 248, "ax", "Åland Island" },
+ { 8, "al", "Albania" },
+ { 12, "dz", "Algeria" },
+ { 16, "as", "American Samoa" },
+ { 20, "ad", "Andorra" },
+ { 24, "ao", "Angola" },
+ { 660, "ai", "Anguilla" },
+ { 10, "aq", "Antarctica" },
+ { 28, "ag", "Antigua & Barbuda" },
+ { 32, "ar", "Argentina" },
+ { 51, "am", "Armenia" },
+ { 533, "aw", "Aruba" },
+ { 36, "au", "Australia" },
+ { 40, "at", "Austria" },
+ { 31, "az", "Azerbaijan" },
+ { 44, "bs", "Bahamas" },
+ { 48, "bh", "Bahrain" },
+ { 50, "bd", "Bangladesh" },
+ { 52, "bb", "Barbados" },
+ { 112, "by", "Belarus" },
+ { 56, "be", "Belgium" },
+ { 84, "bz", "Belize" },
+ { 204, "bj", "Benin" },
+ { 60, "bm", "Bermuda" },
+ { 64, "bt", "Bhutan" },
+ { 68, "bo", "Bolivia" },
+ { 70, "ba", "Bosnia & Herzegowina" },
+ { 72, "bw", "Botswana" },
+ { 74, "bv", "Bouvet Island" },
+ { 76, "br", "Brazil" },
+ { 86, "io", "British Indian Ocean Territory" },
+ { 96, "bn", "Brunei Darussalam" },
+ { 100, "bg", "Bulgaria" },
+ { 854, "bf", "Burkina Faso" },
+ { 108, "bi", "Burundi" },
+ { 116, "kh", "Cambodia" },
+ { 120, "cm", "Cameroon" },
+ { 124, "ca", "Canada" },
+ { 132, "cv", "Cape Verde" },
+ { 136, "ky", "Cayman Islands" },
+ { 140, "cf", "Central African Republic" },
+ { 148, "td", "Chad" },
+ { 152, "cl", "Chile" },
+ { 156, "cn", "China" },
+ { 162, "cx", "Christmas Island" },
+ { 166, "cc", "Cocos Islands" },
+ { 170, "co", "Colombia" },
+ { 174, "km", "Comoros" },
+ { 178, "cg", "Congo" },
+ { 180, "cd", "Congo" },
+ { 184, "ck", "Cook Islands" },
+ { 188, "cr", "Costa Rica" },
+ { 384, "ci", "Cote d'Ivoire" },
+ { 191, "hr", "Croatia" },
+ { 192, "cu", "Cuba" },
+ { 196, "cy", "Cyprus" },
+ { 203, "cz", "Czech Republic" },
+ { 208, "dk", "Denmark" },
+ { 262, "dj", "Djibouti" },
+ { 212, "dm", "Dominica" },
+ { 214, "do", "Dominican Republic" },
+ { 218, "ec", "Ecuador" },
+ { 818, "eg", "Egypt" },
+ { 222, "sv", "El Salvador" },
+ { 226, "gq", "Equatorial Guinea" },
+ { 232, "er", "Eritrea" },
+ { 233, "ee", "Estonia" },
+ { 231, "et", "Ethiopia" },
+ { 238, "fk", "Falkland Islands" },
+ { 234, "fo", "Faroe Islands" },
+ { 242, "fj", "Fiji" },
+ { 246, "fi", "Finland" },
+ { 250, "fr", "France" },
+ { 249, "fx", "France, Metropolitan" },
+ { 254, "gf", "French Guiana" },
+ { 258, "pf", "French Polynesia" },
+ { 260, "tf", "French Southern Territories" },
+ { 266, "ga", "Gabon" },
+ { 270, "gm", "Gambia" },
+ { 268, "ge", "Georgia" },
+ { 276, "de", "Germany" },
+ { 288, "gh", "Ghana" },
+ { 292, "gi", "Gibraltar" },
+ { 300, "gr", "Greece" },
+ { 304, "gl", "Greenland" },
+ { 308, "gd", "Grenada" },
+ { 312, "gp", "Guadeloupe" },
+ { 316, "gu", "Guam" },
+ { 320, "gt", "Guatemala" },
+ { 324, "gn", "Guinea" },
+ { 624, "gw", "Guinea-Bissau" },
+ { 328, "gy", "Guyana" },
+ { 332, "ht", "Haiti" },
+ { 334, "hm", "Heard & Mc Donald Islands" },
+ { 336, "va", "Vatican City" },
+ { 340, "hn", "Honduras" },
+ { 344, "hk", "Hong kong" },
+ { 348, "hu", "Hungary" },
+ { 352, "is", "Iceland" },
+ { 356, "in", "India" },
+ { 360, "id", "Indonesia" },
+ { 364, "ir", "Iran" },
+ { 368, "iq", "Iraq" },
+ { 372, "ie", "Ireland" },
+ { 376, "il", "Israel" },
+ { 380, "it", "Italy" },
+ { 388, "jm", "Jamaica" },
+ { 392, "jp", "Japan" },
+ { 400, "jo", "Jordan" },
+ { 398, "kz", "Kazakhstan" },
+ { 404, "ke", "Kenya" },
+ { 296, "ki", "Kiribati" },
+ { 408, "kp", "Korea (north)" },
+ { 410, "kr", "Korea (south)" },
+ { 414, "kw", "Kuwait" },
+ { 417, "kg", "Kyrgyzstan" },
+ { 418, "la", "Laos" },
+ { 428, "lv", "Latvia" },
+ { 422, "lb", "Lebanon" },
+ { 426, "ls", "Lesotho" },
+ { 430, "lr", "Liberia" },
+ { 434, "ly", "Libya" },
+ { 438, "li", "Liechtenstein" },
+ { 440, "lt", "Lithuania" },
+ { 442, "lu", "Luxembourg" },
+ { 446, "mo", "Macao" },
+ { 807, "mk", "Macedonia" },
+ { 450, "mg", "Madagascar" },
+ { 454, "mw", "Malawi" },
+ { 458, "my", "Malaysia" },
+ { 462, "mv", "Maldives" },
+ { 466, "ml", "Mali" },
+ { 470, "mt", "Malta" },
+ { 584, "mh", "Marshall Islands" },
+ { 474, "mq", "Martinique" },
+ { 478, "mr", "Mauritania" },
+ { 480, "mu", "Mauritius" },
+ { 175, "yt", "Mayotte" },
+ { 484, "mx", "Mexico" },
+ { 583, "fm", "Micronesia" },
+ { 498, "md", "Moldova" },
+ { 492, "mc", "Monaco" },
+ { 496, "mn", "Mongolia" },
+ { 500, "ms", "Montserrat" },
+ { 504, "ma", "Morocco" },
+ { 508, "mz", "Mozambique" },
+ { 104, "mm", "Myanmar" },
+ { 516, "na", "Namibia" },
+ { 520, "nr", "Nauru" },
+ { 524, "np", "Nepal" },
+ { 528, "nl", "Netherlands" },
+ { 530, "an", "Netherlands Antilles" },
+ { 540, "nc", "New Caledonia" },
+ { 554, "nz", "New Zealand" },
+ { 558, "ni", "Nicaragua" },
+ { 562, "ne", "Niger" },
+ { 566, "ng", "Nigeria" },
+ { 570, "nu", "Niue" },
+ { 574, "nf", "Norfolk Island" },
+ { 580, "mp", "Northern Mariana Islands" },
+ { 578, "no", "Norway" },
+ { 512, "om", "Oman" },
+ { 586, "pk", "Pakistan" },
+ { 585, "pw", "Palau" },
+ { 275, "ps", "Palestinian Territory" },
+ { 591, "pa", "Panama" },
+ { 598, "pg", "Papua New Guinea" },
+ { 600, "py", "Paraguay" },
+ { 604, "pe", "Peru" },
+ { 608, "ph", "Philippines" },
+ { 612, "pn", "Pitcairn" },
+ { 616, "pl", "Poland" },
+ { 620, "pt", "Portugal" },
+ { 630, "pr", "Puerto Rico" },
+ { 634, "qa", "Qatar" },
+ { 638, "re", "Reunion" },
+ { 642, "ro", "Romania" },
+ { 643, "ru", "Russia" },
+ { 646, "rw", "Rwanda" },
+ { 659, "kn", "Saint Kitts & Nevis" },
+ { 662, "lc", "Saint Lucia" },
+ { 670, "vc", "Saint Vincent" },
+ { 882, "ws", "Samoa" },
+ { 674, "sm", "San Marino" },
+ { 678, "st", "Sao Tome & Principe" },
+ { 682, "sa", "Saudi Arabia" },
+ { 686, "sn", "Senegal" },
+ { 891, "cs", "Serbia and Montenegro" },
+ { 690, "sc", "Seychelles" },
+ { 694, "sl", "Sierra Leone" },
+ { 702, "sg", "Singapore" },
+ { 703, "sk", "Slovakia" },
+ { 705, "si", "Slovenia" },
+ { 90, "sb", "Solomon Islands" },
+ { 706, "so", "Somalia" },
+ { 710, "za", "South Africa" },
+ { 239, "gs", "South Georgia" },
+ { 724, "es", "Spain" },
+ { 144, "lk", "Sri Lanka" },
+ { 654, "sh", "St. Helena" },
+ { 666, "pm", "St. Pierre & Miquelon" },
+ { 736, "sd", "Sudan" },
+ { 740, "sr", "Suriname" },
+ { 744, "sj", "Svalbard & Jan Mayen Islands" },
+ { 748, "sz", "Swaziland" },
+ { 752, "se", "Sweden" },
+ { 756, "ch", "Switzerland" },
+ { 760, "sy", "Syrian Arab Republic" },
+ { 626, "tl", "Timor-Leste" },
+ { 158, "tw", "Taiwan" },
+ { 762, "tj", "Tajikistan" },
+ { 834, "tz", "Tanzania" },
+ { 764, "th", "Thailand" },
+ { 768, "tg", "Togo" },
+ { 772, "tk", "Tokelau" },
+ { 776, "to", "Tonga" },
+ { 780, "tt", "Trinidad & Tobago" },
+ { 788, "tn", "Tunisia" },
+ { 792, "tr", "Turkey" },
+ { 795, "tm", "Turkmenistan" },
+ { 796, "tc", "Turks & Caicos Islands" },
+ { 798, "tv", "Tuvalu" },
+ { 800, "ug", "Uganda" },
+ { 804, "ua", "Ukraine" },
+ { 784, "ae", "United Arab Emirates" },
+ { 826, "gb", "United Kingdom" },
+ { 840, "us", "United States" },
+ { 581, "um", "United States Minor Outlying Islands" },
+ { 858, "uy", "Uruguay" },
+ { 860, "uz", "Uzbekistan" },
+ { 548, "vu", "Vanuatu" },
+ { 862, "ve", "Venezuela" },
+ { 704, "vn", "Vietnam" },
+ { 92, "vg", "Virgin Islands (British)" },
+ { 850, "vi", "Virgin Islands (US)" },
+ { 876, "wf", "Wallis & Futuna Islands" },
+ { 732, "eh", "Western Sahara" },
+ { 887, "ye", "Yemen" },
+ { 894, "zm", "Zambia" },
+ { 716, "zw", "Zimbabwe" }
+ };
+
+/*
+ * Check if start of 'str' is simply an IPv4 address.
+ */
+#define BYTE_OK(x) ((x) >= 0 && (x) <= 255)
+
+static int is_addr(char *str, char **end)
+{
+ int a0, a1, a2, a3, num, rc = 0, length = 0;
+
+ num = sscanf(str,"%3d.%3d.%3d.%3d%n",&a0,&a1,&a2,&a3,&length);
+ if( (num == 4) &&
+ BYTE_OK(a0) && BYTE_OK(a1) && BYTE_OK(a2) && BYTE_OK(a3) &&
+ length >= (3+4))
+ {
+ rc = 1;
+ *end = str + length;
+ }
+ return rc;
+}
+
+/*
+ * Find the country-code and name from the CNAME. E.g.:
+ * version 1: CNAME = zzno.countries.nerd.dk with address 127.0.2.66
+ * yields ccode_A" = "no" and cnumber 578 (2.66).
+ * version 2: CNAME = <a.b.c.d>.zz.countries.nerd.dk with address 127.0.2.66
+ * yields cnumber 578 (2.66). ccode_A is "";
+ */
+static void find_country_from_cname(const char *cname, struct in_addr addr)
+{
+ const struct search_list *country;
+ char ccode_A2[3], *ccopy, *dot_4;
+ int cnumber, z0, z1, ver_1, ver_2;
+ unsigned long ip;
+
+ ip = ntohl(addr.s_addr);
+ z0 = TOLOWER(cname[0]);
+ z1 = TOLOWER(cname[1]);
+ ccopy = strdup(cname);
+ dot_4 = NULL;
+
+ ver_1 = (z0 == 'z' && z1 == 'z' && !strcasecmp(cname+4,nerd_ver1));
+ ver_2 = (is_addr(ccopy,&dot_4) && !strcasecmp(dot_4,nerd_ver2));
+
+ if (ver_1)
+ {
+ const char *dot = strchr(cname, '.');
+ if (dot != cname+4)
+ {
+ printf("Unexpected CNAME %s (ver_1)\n", cname);
+ free(ccopy);
+ return;
+ }
+ }
+ else if (ver_2)
+ {
+ z0 = TOLOWER(dot_4[1]);
+ z1 = TOLOWER(dot_4[2]);
+ if (z0 != 'z' && z1 != 'z')
+ {
+ printf("Unexpected CNAME %s (ver_2)\n", cname);
+ free(ccopy);
+ return;
+ }
+ }
+ else
+ {
+ printf("Unexpected CNAME %s (ver?)\n", cname);
+ free(ccopy);
+ return;
+ }
+
+ if (ver_1)
+ {
+ ccode_A2[0] = (char)TOLOWER(cname[2]);
+ ccode_A2[1] = (char)TOLOWER(cname[3]);
+ ccode_A2[2] = '\0';
+ }
+ else
+ ccode_A2[0] = '\0';
+
+ cnumber = ip & 0xFFFF;
+
+ TRACE(("Found country-code `%s', number %d\n",
+ ver_1 ? ccode_A2 : "<n/a>", cnumber));
+
+ country = list_lookup(cnumber, country_list,
+ sizeof(country_list) / sizeof(country_list[0]));
+ if (!country)
+ printf("Name for country-number %d not found.\n", cnumber);
+ else
+ {
+ if (ver_1)
+ {
+ if ((country->short_name[0] != ccode_A2[0]) ||
+ (country->short_name[1] != ccode_A2[1]) ||
+ (country->short_name[2] != ccode_A2[2]))
+ printf("short-name mismatch; %s vs %s\n",
+ country->short_name, ccode_A2);
+ }
+ printf("%s (%s), number %d.\n",
+ country->long_name, country->short_name, cnumber);
+ }
+ free(ccopy);
+}
git://repos.xcallymotion.com / motion2.git / blobdiff