#include #include #include #include #include #include #include #include #define IPCC_PORT 5016 #define DEFAULT_HOST "a-k.onevista.com" #define OUR_BUF_SIZ 512 struct COUNTRY_NAMES { char *name; char *code; } country_lookup[] = { "unassigned", "--", "Afghanistan", "AF", "Albania", "AL", "Algeria", "DZ", "American Samoa", "AS", "Andorra", "AD", "Angola", "AO", "Anguilla", "AI", "Antarctica", "AQ", "Antigua And Barbuda", "AG", "Argentina", "AR", "Armenia", "AM", "Aruba", "AW", "Australia", "AU", "Austria", "AT", "Azerbaijan", "AZ", "Bahamas", "BS", "Bahrain", "BH", "Bangladesh", "BD", "Barbados", "BB", "Belarus", "BY", "Belgium", "BE", "Belize", "BZ", "Benin", "BJ", "Bermuda", "BM", "Bhutan", "BT", "Bolivia", "BO", "Bosnia And Herzegowina", "BA", "Botswana", "BW", "Bouvet Island", "BV", "Brazil", "BR", "British Indian Ocean Territory", "IO", "Brunei Darussalam", "BN", "Bulgaria", "BG", "Burkina Faso", "BF", "Burundi", "BI", "Cambodia", "KH", "Cameroon", "CM", "Canada", "CA", "Cape Verde", "CV", "Cayman Islands", "KY", "Central African Republic", "CF", "Chad", "TD", "Chile", "CL", "China", "CN", "Christmas Island", "CX", "Cocos (Keeling) Islands", "CC", "Colombia", "CO", "Comoros", "KM", "Congo", "CG", "Congo,Dr", "CD", "Cook Islands", "CK", "Costa Rica", "CR", "Cote D", "IVOIRE", "Croatia", "HR", "Cuba", "CU", "Cyprus", "CY", "Czech Republic", "CZ", "Denmark", "DK", "Djibouti", "DJ", "Dominica", "DM", "Dominican Republic", "DO", "Ecuador", "EC", "Egypt", "EG", "El Salvador", "SV", "Equatorial Guinea", "GQ", "Eritrea", "ER", "Estonia", "EE", "Ethiopia", "ET", "European Union", "EU", "Falkland Islands (Malvinas)", "FK", "Faroe Islands", "FO", "Fiji", "FJ", "Finland", "FI", "France", "FR", "French Guiana", "GF", "French Polynesia", "PF", "French Southern Territories", "TF", "Gabon", "GA", "Gambia", "GM", "Georgia", "GE", "Germany", "DE", "Ghana", "GH", "Gibraltar", "GI", "Greece", "GR", "Greenland", "GL", "Grenada", "GD", "Guadeloupe", "GP", "Guam", "GU", "Guatemala", "GT", "Guinea", "GN", "Guinea-Bissau", "GW", "Guyana", "GY", "Haiti", "HT", "Heard Island And Mcdonald Islands", "HM", "Vatican", "VA", "Honduras", "HN", "Hong Kong", "HK", "Hungary", "HU", "Iceland", "IS", "India", "IN", "Indonesia", "ID", "Iran", "IR", "Iraq", "IQ", "Ireland", "IE", "Israel", "IL", "Italy", "IT", "Jamaica", "JM", "Japan", "JP", "Jordan", "JO", "Kazakhstan", "KZ", "Kenya", "KE", "Kiribati", "KI", "Korea", "KR", "Kuwait", "KW", "Kyrgyzstan", "KG", "Laos", "LA", "Latvia", "LV", "Lebanon", "LB", "Lesotho", "LS", "Liberia", "LR", "Libya", "LY", "Liechtenstein", "LI", "Lithuania", "LT", "Luxembourg", "LU", "Macao", "MO", "Macedonia", "MK", "Madagascar", "MG", "Malawi", "MW", "Malaysia", "MY", "Maldives", "MV", "Mali", "ML", "Malta", "MT", "Marshall Islands", "MH", "Martinique", "MQ", "Mauritania", "MR", "Mauritius", "MU", "Mayotte", "YT", "Mexico", "MX", "Micronesia", "FM", "Moldova", "MD", "Monaco", "MC", "Mongolia", "MN", "Montserrat", "MS", "Morocco", "MA", "Mozambique", "MZ", "Myanmar", "MM", "Namibia", "NA", "Nauru", "NR", "Nepal", "NP", "Netherlands", "NL", "Netherlands Antilles", "AN", "New Caledonia", "NC", "New Zealand", "NZ", "Nicaragua", "NI", "Niger", "NE", "Nigeria", "NG", "Niue", "NU", "Norfolk Island", "NF", "Northern Mariana Islands", "MP", "Norway", "NO", "Oman", "OM", "Pakistan", "PK", "Palau", "PW", "Palestine", "PS", "Panama", "PA", "Papua New Guinea", "PG", "Paraguay", "PY", "Peru", "PE", "Philippines", "PH", "Pitcairn", "PN", "Poland", "PL", "Portugal", "PT", "Puerto Rico", "PR", "Qatar", "QA", "Reunion", "RE", "Romania", "RO", "Russia", "RU", "Rwanda", "RW", "Saint Helena", "SH", "Saint Kitts And Nevis", "KN", "Saint Lucia", "LC", "Saint Pierre And Miquelon", "PM", "Saint Vincent And The Grenadines", "VC", "Samoa", "WS", "San Marino", "SM", "Sao Tome And Principe", "ST", "Saudi Arabia", "SA", "Senegal", "SN", "Serbia And Montenegro", "CS", "Seychelles", "SC", "Sierra Leone", "SL", "Singapore", "SG", "Slovakia", "SK", "Slovenia", "SI", "Solomon Islands", "SB", "Somalia", "SO", "South Africa", "ZA", "South Georgia And The South Sandwich Islands", "GS", "Spain", "ES", "Sri Lanka", "LK", "Sudan", "SD", "Suriname", "SR", "Svalbard And Jan Mayen", "SJ", "Swaziland", "SZ", "Sweden", "SE", "Switzerland", "CH", "Syria", "SY", "Taiwan", "TW", "Tajikistan", "TJ", "Tanzania", "TZ", "Thailand", "TH", "Timor-Leste", "TL", "Togo", "TG", "Tokelau", "TK", "Tonga", "TO", "Trinidad And Tobago", "TT", "Tunisia", "TN", "Turkey", "TR", "Turkmenistan", "TM", "Turks And Caicos Islands", "TC", "Tuvalu", "TV", "Uganda", "UG", "Ukraine", "UA", "United Arab Emirates", "AE", "United Kingdom", "UK", "United Kingdom", "GB", "United States", "US", "United States Minor Outlying Islands", "UM", "Uruguay", "UY", "Uzbekistan", "UZ", "Vanuatu", "VU", "Venezuela", "VE", "Viet Nam", "VN", "British Virgin Islands", "VG", "U.S. Virgin Islands", "VI", "Wallis And Futuna", "WF", "Western Sahara", "EH", "Yemen", "YE", "Zambia", "ZM", "Zimbabwe", "ZW", NULL, NULL }; int sockfd = -1; int port = IPCC_PORT; int want_block = 0; int want_country = 0; char *host = DEFAULT_HOST; char tmp[128]; char mesg[OUR_BUF_SIZ], recvline[OUR_BUF_SIZ]; extern int errno; void host_name_to_adr (char *name, struct in_addr *address); /////////////////////////////////////////////////////////////////////////// void Usage(char *pgm) { sprintf(tmp,"USAGE: %s [-h host] [-b] [-c] dotted_quad [dotted_quad ...]", pgm); die(tmp, 0); } /////////////////////////////////////////////////////////////////////////// main(argc, argv) int argc; char *argv[]; { struct in_addr inaddr; char *pgm; pgm = argv[0]; if (argc < 2) { Usage(pgm); } argc--; argv++; while (*argv[0] == '-') { switch (argv[0][1]) { case 'h': if (argc < 3) { Usage(pgm); } host = argv[1]; argc--; argv++; break; case 'b': want_block++; break; case 'c': want_country++; break; default: Usage(pgm); break; } argc--; argv++; } if (!want_block && !want_country) want_country++; while (argc > 0) { if (isalpha(argv[0][0])) { host_name_to_adr(argv[0], &inaddr); strcpy(mesg, inet_ntoa(inaddr)); } else strcpy(mesg, argv[0]); argc--, argv++; establish(); close(sockfd); } exit(0); } /////////////////////////////////////////////////////////////////////////// void host_name_to_adr (char *name, struct in_addr *address) { struct hostent *hp, *gethostbyname(); if ((hp = gethostbyname(name)) == 0) { sprintf(mesg, "Unknown host %s", name); die(mesg, 0); } memcpy((char *)address, (char *)hp->h_addr, hp->h_length); } /////////////////////////////////////////////////////////////////////////// char *block_lookup(char *p) { return &p[3]; } /////////////////////////////////////////////////////////////////////////// char *cname_lookup(char *p) { char *q; struct COUNTRY_NAMES *cn = country_lookup; p[2] = 0; while ((q = cn->code)) { //assignment!! if (*q++ == *p) if (*q++ == p[1]) return cn->name; cn++; } return p; } /////////////////////////////////////////////////////////////////////////// establish() { int n; int retry; struct sockaddr_in cli_addr; struct sockaddr_in serv_addr; struct in_addr inaddr; fd_set fdsr; struct timeval tv; if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) die("Can't open datagram socket", errno); bzero((char *) &serv_addr, sizeof(serv_addr)); serv_addr.sin_family = AF_INET; if (isalpha(*host)) host_name_to_adr(host, &inaddr); else inet_aton(host, &inaddr); serv_addr.sin_addr.s_addr = inaddr.s_addr; serv_addr.sin_port = htons(port); bzero((char *) &cli_addr, sizeof(cli_addr)); cli_addr.sin_family = AF_INET; cli_addr.sin_addr.s_addr = htonl(INADDR_ANY); cli_addr.sin_port = htons(0); if (sendto(sockfd, mesg, sizeof(mesg), 0, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) != sizeof(mesg)) die("sendto error", errno); *recvline = 0; retry = 0; FD_ZERO(&fdsr); while (retry < 5) { tv.tv_sec = 1; tv.tv_usec = 0; FD_SET(sockfd, &fdsr); n = select(sockfd+1, &fdsr, NULL, NULL, &tv); if (n == -1) { if (errno != EINTR) die("select failed", errno); continue; } if (n == 0) { // timeout retry++; continue; } n = recvfrom(sockfd, recvline, OUR_BUF_SIZ, 0, (struct sockaddr *) 0, (int *) 0); if (n < 0) die("recvfrom error", errno); if (strncmp(recvline, "Invalid", 7)) { if (want_block) printf("%s",block_lookup(recvline)); if (want_country) printf("%s\n",cname_lookup(recvline)); } else printf(" \n"); return; } sprintf(tmp, "IP2CC server at '%s' not responding. Ending!", host); die(tmp, 0); } ////////////////////////////////////////////////////////////////////// die(char *p, int x) { if (x) fprintf(stderr,"ip2cc: %s (%s)\n",p, strerror(x)); else fprintf(stderr,"ip2cc: %s\n",p); exit(1); } //////////////////////////////////////////////////////////////////////