1/*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al. 9 * 10 * This software is licensed as described in the file COPYING, which 11 * you should have received as part of this distribution. The terms 12 * are also available at http://curl.haxx.se/docs/copyright.html. 13 * 14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell 15 * copies of the Software, and permit persons to whom the Software is 16 * furnished to do so, under the terms of the COPYING file. 17 * 18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 19 * KIND, either express or implied. 20 * 21 ***************************************************************************/ 22 23#include "curl_setup.h" 24 25#ifndef CURL_DISABLE_DICT 26 27#ifdef HAVE_NETINET_IN_H 28#include <netinet/in.h> 29#endif 30#ifdef HAVE_NETDB_H 31#include <netdb.h> 32#endif 33#ifdef HAVE_ARPA_INET_H 34#include <arpa/inet.h> 35#endif 36#ifdef HAVE_NET_IF_H 37#include <net/if.h> 38#endif 39#ifdef HAVE_SYS_IOCTL_H 40#include <sys/ioctl.h> 41#endif 42 43#ifdef HAVE_SYS_PARAM_H 44#include <sys/param.h> 45#endif 46 47#ifdef HAVE_SYS_SELECT_H 48#include <sys/select.h> 49#endif 50 51#include "urldata.h" 52#include <curl/curl.h> 53#include "transfer.h" 54#include "sendf.h" 55 56#include "progress.h" 57#include "strequal.h" 58#include "dict.h" 59#include "rawstr.h" 60 61#define _MPRINTF_REPLACE /* use our functions only */ 62#include <curl/mprintf.h> 63 64#include "curl_memory.h" 65/* The last #include file should be: */ 66#include "memdebug.h" 67 68/* 69 * Forward declarations. 70 */ 71 72static CURLcode dict_do(struct connectdata *conn, bool *done); 73 74/* 75 * DICT protocol handler. 76 */ 77 78const struct Curl_handler Curl_handler_dict = { 79 "DICT", /* scheme */ 80 ZERO_NULL, /* setup_connection */ 81 dict_do, /* do_it */ 82 ZERO_NULL, /* done */ 83 ZERO_NULL, /* do_more */ 84 ZERO_NULL, /* connect_it */ 85 ZERO_NULL, /* connecting */ 86 ZERO_NULL, /* doing */ 87 ZERO_NULL, /* proto_getsock */ 88 ZERO_NULL, /* doing_getsock */ 89 ZERO_NULL, /* domore_getsock */ 90 ZERO_NULL, /* perform_getsock */ 91 ZERO_NULL, /* disconnect */ 92 ZERO_NULL, /* readwrite */ 93 PORT_DICT, /* defport */ 94 CURLPROTO_DICT, /* protocol */ 95 PROTOPT_NONE | PROTOPT_NOURLQUERY /* flags */ 96}; 97 98static char *unescape_word(struct SessionHandle *data, const char *inputbuff) 99{ 100 char *newp; 101 char *dictp; 102 char *ptr; 103 int len; 104 char byte; 105 int olen=0; 106 107 newp = curl_easy_unescape(data, inputbuff, 0, &len); 108 if(!newp) 109 return NULL; 110 111 dictp = malloc(((size_t)len)*2 + 1); /* add one for terminating zero */ 112 if(dictp) { 113 /* According to RFC2229 section 2.2, these letters need to be escaped with 114 \[letter] */ 115 for(ptr = newp; 116 (byte = *ptr) != 0; 117 ptr++) { 118 if((byte <= 32) || (byte == 127) || 119 (byte == '\'') || (byte == '\"') || (byte == '\\')) { 120 dictp[olen++] = '\\'; 121 } 122 dictp[olen++] = byte; 123 } 124 dictp[olen]=0; 125 126 free(newp); 127 } 128 return dictp; 129} 130 131static CURLcode dict_do(struct connectdata *conn, bool *done) 132{ 133 char *word; 134 char *eword; 135 char *ppath; 136 char *database = NULL; 137 char *strategy = NULL; 138 char *nthdef = NULL; /* This is not part of the protocol, but required 139 by RFC 2229 */ 140 CURLcode result=CURLE_OK; 141 struct SessionHandle *data=conn->data; 142 curl_socket_t sockfd = conn->sock[FIRSTSOCKET]; 143 144 char *path = data->state.path; 145 curl_off_t *bytecount = &data->req.bytecount; 146 147 *done = TRUE; /* unconditionally */ 148 149 if(conn->bits.user_passwd) { 150 /* AUTH is missing */ 151 } 152 153 if(Curl_raw_nequal(path, DICT_MATCH, sizeof(DICT_MATCH)-1) || 154 Curl_raw_nequal(path, DICT_MATCH2, sizeof(DICT_MATCH2)-1) || 155 Curl_raw_nequal(path, DICT_MATCH3, sizeof(DICT_MATCH3)-1)) { 156 157 word = strchr(path, ':'); 158 if(word) { 159 word++; 160 database = strchr(word, ':'); 161 if(database) { 162 *database++ = (char)0; 163 strategy = strchr(database, ':'); 164 if(strategy) { 165 *strategy++ = (char)0; 166 nthdef = strchr(strategy, ':'); 167 if(nthdef) { 168 *nthdef = (char)0; 169 } 170 } 171 } 172 } 173 174 if((word == NULL) || (*word == (char)0)) { 175 infof(data, "lookup word is missing\n"); 176 word=(char *)"default"; 177 } 178 if((database == NULL) || (*database == (char)0)) { 179 database = (char *)"!"; 180 } 181 if((strategy == NULL) || (*strategy == (char)0)) { 182 strategy = (char *)"."; 183 } 184 185 eword = unescape_word(data, word); 186 if(!eword) 187 return CURLE_OUT_OF_MEMORY; 188 189 result = Curl_sendf(sockfd, conn, 190 "CLIENT " LIBCURL_NAME " " LIBCURL_VERSION "\r\n" 191 "MATCH " 192 "%s " /* database */ 193 "%s " /* strategy */ 194 "%s\r\n" /* word */ 195 "QUIT\r\n", 196 197 database, 198 strategy, 199 eword 200 ); 201 202 free(eword); 203 204 if(result) { 205 failf(data, "Failed sending DICT request"); 206 return result; 207 } 208 Curl_setup_transfer(conn, FIRSTSOCKET, -1, FALSE, bytecount, 209 -1, NULL); /* no upload */ 210 } 211 else if(Curl_raw_nequal(path, DICT_DEFINE, sizeof(DICT_DEFINE)-1) || 212 Curl_raw_nequal(path, DICT_DEFINE2, sizeof(DICT_DEFINE2)-1) || 213 Curl_raw_nequal(path, DICT_DEFINE3, sizeof(DICT_DEFINE3)-1)) { 214 215 word = strchr(path, ':'); 216 if(word) { 217 word++; 218 database = strchr(word, ':'); 219 if(database) { 220 *database++ = (char)0; 221 nthdef = strchr(database, ':'); 222 if(nthdef) { 223 *nthdef = (char)0; 224 } 225 } 226 } 227 228 if((word == NULL) || (*word == (char)0)) { 229 infof(data, "lookup word is missing\n"); 230 word=(char *)"default"; 231 } 232 if((database == NULL) || (*database == (char)0)) { 233 database = (char *)"!"; 234 } 235 236 eword = unescape_word(data, word); 237 if(!eword) 238 return CURLE_OUT_OF_MEMORY; 239 240 result = Curl_sendf(sockfd, conn, 241 "CLIENT " LIBCURL_NAME " " LIBCURL_VERSION "\r\n" 242 "DEFINE " 243 "%s " /* database */ 244 "%s\r\n" /* word */ 245 "QUIT\r\n", 246 database, 247 eword); 248 249 free(eword); 250 251 if(result) { 252 failf(data, "Failed sending DICT request"); 253 return result; 254 } 255 Curl_setup_transfer(conn, FIRSTSOCKET, -1, FALSE, bytecount, 256 -1, NULL); /* no upload */ 257 } 258 else { 259 260 ppath = strchr(path, '/'); 261 if(ppath) { 262 int i; 263 264 ppath++; 265 for(i = 0; ppath[i]; i++) { 266 if(ppath[i] == ':') 267 ppath[i] = ' '; 268 } 269 result = Curl_sendf(sockfd, conn, 270 "CLIENT " LIBCURL_NAME " " LIBCURL_VERSION "\r\n" 271 "%s\r\n" 272 "QUIT\r\n", ppath); 273 if(result) { 274 failf(data, "Failed sending DICT request"); 275 return result; 276 } 277 278 Curl_setup_transfer(conn, FIRSTSOCKET, -1, FALSE, bytecount, -1, NULL); 279 } 280 } 281 282 return CURLE_OK; 283} 284#endif /*CURL_DISABLE_DICT*/ 285