1 | /*************************************** 2 | $Revision: 1.16 $ 3 | 4 | Example code: Determine which keys to look for. 5 | 6 | This is based on the C code that was reversed engineered from existing Perl 7 | code. (~ottrey/which_table/which_table.c) 8 | 9 | ******************/ /****************** 10 | Copyright (c) 1999 RIPE NCC 11 | 12 | All Rights Reserved 13 | 14 | Permission to use, copy, modify, and distribute this software and its 15 | documentation for any purpose and without fee is hereby granted, 16 | provided that the above copyright notice appear in all copies and that 17 | both that copyright notice and this permission notice appear in 18 | supporting documentation, and that the name of the author not be 19 | used in advertising or publicity pertaining to distribution of the 20 | software without specific, written prior permission. 21 | 22 | THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 23 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS; IN NO EVENT SHALL 24 | AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY 25 | DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN 26 | AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 27 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 28 | ***************************************/ 29 | #include <stdio.h> 30 | #include <stdlib.h> 31 | #include <strings.h> 32 | #include <libgen.h> 33 | #include <glib.h> 34 | 35 | #include "isnic.h" 36 | #include "bitmask.h" 37 | #include "memwrap.h" 38 | 39 | #define WK_IMPL 40 | #include "which_keytypes.h" 41 | 42 | 43 | 44 | #define DOMAINNAME "^[ ]*[a-zA-Z0-9--]*(\\.[a-zA-Z0-9--]+)*[ ]*$" 45 | /* add a constraint: there must be at least one character in the domain name 46 | because the TLD must not be composed of digits only */ 47 | #define DOMAINALPHA "[a-zA-Z]" 48 | 49 | #define VALIDIP6PREFIX "^[0-9A-F:]*:[0-9A-F:/]*$" /* at least one colon */ 50 | /* "^[0-9A-F]{1,4}(:[0-9A-F]{1,4}){7}$"*/ 51 | 52 | #define NET "^[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}$" 53 | 54 | #define ASNUM "^AS[1-9]+[0-9]{0,4}$" 55 | 56 | #define ASRANGE "^AS[0-9]{1,5}[ ]*([-][ ]*AS[0-9]{1,5}){0,1}$" /* [ ]*(-[ ]*AS[0-9]+)? */ 57 | 58 | #define NETNAME "^[A-Z][A-Z0-9-]*$" 59 | 60 | #define MAINTAINER "^[A-Z][A-Z0-9-]*$" 61 | 62 | #define LIMERICK "^LIM-[A-Z0-9-]+$" 63 | 64 | #define KEYCERT "^PGPKEY-[0-9A-F]{8}$" 65 | 66 | #define ROUTESETNAME "^RS-[A-Z0-9-_]*$" 67 | 68 | #define ASSETNAME "^AS-[A-Z0-9-_]*$" 69 | 70 | #define AUTONICPREFIXREGULAR "^AUTO-" 71 | 72 | #define IPRANGE "^[0-9]{1,3}(\\.[0-9]{1,3}){0,3}[ ]*-[ ]*[0-9]{1,3}(\\.[0-9]{1,3}){0,3}$" 73 | 74 | #define IPADDRESS "^[0-9.]+$" 75 | 76 | #define IPPREFIX "^[0-9.]+/[0-9]+$" 77 | 78 | #define PEERINGSET "^PRNG-" 79 | 80 | #define FILTERSET "^FLTR-" 81 | 82 | #define RTRSET "^RTRS-" 83 | 84 | #define NICHANDLE "^[A-Z0-9-]+$" 85 | 86 | /* 87 | XXX This seems to be the same as the Perl code. But I don't see where a " " is allowed for. 88 | I.e. Perl -> ^[a-zA-Z][\w\-\.\'\|\`]*$ 89 | Does \w include [ ;:,?/}{()+*#] ? 90 | #define NAME_B "^[a-zA-Z][a-zA-Z_0-9.'|`-]*$" 91 | */ 92 | #define NAME_B "^[a-zA-Z][a-zA-Z_0-9.'|`;:,?/}{()+*#&-]*$" 93 | 94 | #define VALIDIP4PREFIX 95 | 96 | #define EMAIL "^[.a-zA-Z0-9--]*@[a-zA-Z0-9--]*(\\.[a-zA-Z0-9--]+)*$" 97 | 98 | static int perform_regex_test(const char *pattern, char *string) { 99 | int match; 100 | 101 | char *re; 102 | 103 | re = regcmp(pattern, (char*)0); 104 | if (regex(re, string) == NULL) { 105 | match = 0; 106 | } 107 | else { 108 | match = 1; 109 | } 110 | 111 | free(re); /* not a wrapper, because we have not allocated it */ 112 | 113 | return match; 114 | } /* perform_regex_test() */ 115 | 116 | 117 | static int isdomname(char *string) { 118 | return ( perform_regex_test(DOMAINNAME, string) 119 | && perform_regex_test(DOMAINALPHA, string)); 120 | } 121 | 122 | /* 123 | I split the isname up into isname_a & isname_b. And created isname_ab to join them together. 124 | - So I can test it properly. -ottrey 125 | */ 126 | static int isname_a(char *string) { 127 | return perform_regex_test(AUTONICPREFIXREGULAR, string); 128 | } 129 | 130 | static int isname_b(char *string) { 131 | return perform_regex_test(NAME_B, string); 132 | } 133 | 134 | static int isname_ab(char *string) { 135 | return (isname_a(string) || isname_b(string)); 136 | } 137 | 138 | static int wk_is_name(char *key) { 139 | /* Everything matches to name */ 140 | return 1; 141 | } /* wk_is_name() */ 142 | 143 | static int wk_is_domain(char *key) { 144 | return isdomname(key); 145 | } /* wk_is_domname() */ 146 | 147 | static int wk_is_iprange(char *key) { 148 | return perform_regex_test(IPRANGE, key); 149 | } /* wk_is_iprange() */ 150 | 151 | static int wk_is_hostname(char *key) { 152 | /* XXX Why is there a hostname & a domainname? */ 153 | /* Answer - hostname can be a domainname or an IP */ 154 | return (isdomname(key) || wk_is_iprange(key)); 155 | } /* wk_is_hostname() */ 156 | 157 | /* WK_to_string() */ 158 | /*++++++++++++++++++++++++++++++++++++++ 159 | Convert the which keytypes bitmap into a string. 160 | 161 | mask_t wk The which keytypes mask to be converted. 162 | 163 | More: 164 | +html+ <PRE> 165 | Authors: 166 | ottrey 167 | +html+ </PRE><DL COMPACT> 168 | +html+ <DT>Online References: 169 | +html+ <DD><UL> 170 | +html+ </UL></DL> 171 | 172 | ++++++++++++++++++++++++++++++++++++++*/ 173 | char *WK_to_string(mask_t wk) { 174 | 175 | return MA_to_string(wk, Keytypes); 176 | 177 | } /* WK_to_string() */ 178 | 179 | /* WK_new() */ 180 | /*++++++++++++++++++++++++++++++++++++++ 181 | Create a new which keytypes bitmap. 182 | 183 | char *key The key to be examined. 184 | 185 | More: 186 | +html+ <PRE> 187 | Authors: 188 | ottrey 189 | +html+ </PRE><DL COMPACT> 190 | +html+ <DT>Online References: 191 | +html+ <DD><UL> 192 | +html+ </UL></DL> 193 | 194 | ++++++++++++++++++++++++++++++++++++++*/ 195 | mask_t WK_new(char *key) { 196 | mask_t wk; 197 | 198 | wk = MA_new(MA_END); 199 | 200 | MA_set(&wk, WK_NAME, wk_is_name(key)); 201 | MA_set(&wk, WK_NIC_HDL, perform_regex_test(NICHANDLE, key)); 202 | MA_set(&wk, WK_EMAIL, perform_regex_test(EMAIL, key)); 203 | MA_set(&wk, WK_MNTNER, perform_regex_test(MAINTAINER, key)); 204 | MA_set(&wk, WK_KEY_CERT, perform_regex_test(KEYCERT, key)); 205 | MA_set(&wk, WK_IPADDRESS, perform_regex_test(IPADDRESS, key)); 206 | MA_set(&wk, WK_IPRANGE, wk_is_iprange(key)); 207 | MA_set(&wk, WK_IPPREFIX, perform_regex_test(IPPREFIX, key)); 208 | MA_set(&wk, WK_IP6PREFIX, perform_regex_test(VALIDIP6PREFIX, key)); 209 | MA_set(&wk, WK_NETNAME, perform_regex_test(NETNAME, key)); 210 | MA_set(&wk, WK_NET6NAME, perform_regex_test(NETNAME, key)); 211 | MA_set(&wk, WK_AUTNUM, perform_regex_test(ASNUM, key)); 212 | MA_set(&wk, WK_ASSETNAME, perform_regex_test(ASSETNAME, key)); 213 | MA_set(&wk, WK_ROUTESETNAME, perform_regex_test(ROUTESETNAME, key)); 214 | MA_set(&wk, WK_DOMAIN, wk_is_domain(key)); 215 | MA_set(&wk, WK_HOSTNAME, wk_is_hostname(key)); 216 | MA_set(&wk, WK_LIMERICK, perform_regex_test(LIMERICK, key)); 217 | MA_set(&wk, WK_ASRANGE, perform_regex_test(ASRANGE, key)); 218 | MA_set(&wk, WK_PEERINGSET, perform_regex_test(PEERINGSET, key)); 219 | MA_set(&wk, WK_FILTERSET, perform_regex_test(FILTERSET, key)); 220 | MA_set(&wk, WK_RTRSET, perform_regex_test(RTRSET, key)); 221 | 222 | return wk; 223 | 224 | } /* WK_new() */