curl-helper.c

   1 /***
   2  ***  curl-helper.c
   3  ***
   4  ***  Copyright (c) 2003-2008, Lars Nilsson, <lars@quantumchamaeleon.com>
   5  ***  Copyright (c) 2009, ygrek, <ygrek@autistici.org>
   6  ***/
   7
   8 #include <stdio.h>
   9 #include <string.h>
  10 #include <stdlib.h>
  11 #include <stdarg.h>
  12 #include <unistd.h>
  13 /* suppress false gcc warning on seekFunction */
  14 #define CURL_DISABLE_TYPECHECK
  15 #include <curl/curl.h>
  16
  17 #define CAML_NAME_SPACE
  18 #include <caml/alloc.h>
  19 #include <caml/memory.h>
  20 #include <caml/mlvalues.h>
  21 #include <caml/callback.h>
  22 #include <caml/fail.h>
  23 #include <caml/unixsupport.h>
  24 #include <caml/custom.h>
  25 #include <caml/threads.h>
  26
  27 #ifndef CAMLdrop
  28 #define CAMLdrop caml_local_roots = caml__frame
  29 #endif
  30
  31 #ifdef HAVE_CONFIG_H
  32 #include "config.h"
  33 #else
  34 #pragma message("No config file given.")
  35 #endif
  36
  37 #define Val_none Val_int(0)
  38
  39 static __inline value
  40 Val_some( value v )
  41 {
  42     CAMLparam1( v );
  43     CAMLlocal1( some );
  44     some = caml_alloc(1, 0);
  45     Store_field( some, 0, v );
  46     CAMLreturn( some );
  47 }
  48
  49 static value Val_pair(value v1, value v2)
  50 {
  51   CAMLparam2(v1,v2);
  52   CAMLlocal1(pair);
  53   pair = caml_alloc_small(2,0);
  54   Field(pair,0) = v1;
  55   Field(pair,1) = v2;
  56   CAMLreturn(pair);
  57 }
  58
  59 static value Val_cons(value list, value v) { return Val_pair(v,list); }
  60
  61 typedef struct Connection Connection;
  62 typedef struct ConnectionList ConnectionList;
  63
  64 #define Connection_val(v) (*(Connection**)Data_custom_val(v))
  65
  66 typedef enum OcamlValues
  67 {
  68     Ocaml_WRITEFUNCTION,
  69     Ocaml_READFUNCTION,
  70     Ocaml_ERRORBUFFER,
  71     Ocaml_POSTFIELDS,
  72     Ocaml_HTTPHEADER,
  73     Ocaml_HTTPPOST,
  74     Ocaml_QUOTE,
  75     Ocaml_POSTQUOTE,
  76     Ocaml_HEADERFUNCTION,
  77     Ocaml_PROGRESSFUNCTION,
  78     Ocaml_DEBUGFUNCTION,
  79     Ocaml_HTTP200ALIASES,
  80     Ocaml_IOCTLFUNCTION,
  81     Ocaml_SEEKFUNCTION,
  82     Ocaml_OPENSOCKETFUNCTION,
  83
  84     Ocaml_URL,
  85     Ocaml_PROXY,
  86     Ocaml_USERPWD,
  87     Ocaml_PROXYUSERPWD,
  88     Ocaml_RANGE,
  89     Ocaml_REFERER,
  90     Ocaml_USERAGENT,
  91     Ocaml_FTPPORT,
  92     Ocaml_COOKIE,
  93     Ocaml_HTTPPOSTSTRINGS,
  94     Ocaml_SSLCERT,
  95     Ocaml_SSLCERTTYPE,
  96     Ocaml_SSLCERTPASSWD,
  97     Ocaml_SSLKEY,
  98     Ocaml_SSLKEYTYPE,
  99     Ocaml_SSLKEYPASSWD,
 100     Ocaml_SSLENGINE,
 101     Ocaml_COOKIEFILE,
 102     Ocaml_CUSTOMREQUEST,
 103     Ocaml_INTERFACE,
 104     Ocaml_CAINFO,
 105     Ocaml_CAPATH,
 106     Ocaml_RANDOM_FILE,
 107     Ocaml_EGDSOCKET,
 108     Ocaml_COOKIEJAR,
 109     Ocaml_SSL_CIPHER_LIST,
 110     Ocaml_PRIVATE,
 111     Ocaml_NETRC_FILE,
 112     Ocaml_FTP_ACCOUNT,
 113     Ocaml_COOKIELIST,
 114     Ocaml_FTP_ALTERNATIVE_TO_USER,
 115     Ocaml_SSH_PUBLIC_KEYFILE,
 116     Ocaml_SSH_PRIVATE_KEYFILE,
 117     Ocaml_SSH_HOST_PUBLIC_KEY_MD5,
 118     Ocaml_COPYPOSTFIELDS,
 119     Ocaml_DNS_SERVERS,
 120     Ocaml_MAIL_FROM,
 121     Ocaml_MAIL_RCPT,
 122     Ocaml_RESOLVE,
 123
 124     /* Not used, last for size */
 125     OcamlValuesSize
 126 } OcamlValue;
 127
 128 struct Connection
 129 {
 130     CURL *connection;
 131     Connection *next;
 132     Connection *prev;
 133
 134     value ocamlValues;
 135
 136     size_t refcount; /* number of references to this structure */
 137
 138     char *curl_URL;
 139     char *curl_PROXY;
 140     char *curl_USERPWD;
 141     char *curl_PROXYUSERPWD;
 142     char *curl_RANGE;
 143     char *curl_ERRORBUFFER;
 144     char *curl_POSTFIELDS;
 145     int curl_POSTFIELDSIZE;
 146     char *curl_REFERER;
 147     char *curl_USERAGENT;
 148     char *curl_FTPPORT;
 149     char *curl_COOKIE;
 150     struct curl_slist *curl_HTTPHEADER;
 151     struct curl_slist *httpPostBuffers;
 152     struct curl_httppost *httpPostFirst;
 153     struct curl_httppost *httpPostLast;
 154     struct curl_slist *curl_RESOLVE;
 155     char *curl_SSLCERT;
 156     char *curl_SSLCERTTYPE;
 157     char *curl_SSLCERTPASSWD;
 158     char *curl_SSLKEY;
 159     char *curl_SSLKEYTYPE;
 160     char *curl_SSLKEYPASSWD;
 161     char *curl_SSLENGINE;
 162     struct curl_slist *curl_QUOTE;
 163     struct curl_slist *curl_POSTQUOTE;
 164     char *curl_COOKIEFILE;
 165     char *curl_CUSTOMREQUEST;
 166     char *curl_INTERFACE;
 167     char *curl_CAINFO;
 168     char *curl_CAPATH;
 169     char *curl_RANDOM_FILE;
 170     char *curl_EGDSOCKET;
 171     char *curl_COOKIEJAR;
 172     char *curl_SSL_CIPHER_LIST;
 173     char *curl_PRIVATE;
 174     struct curl_slist *curl_HTTP200ALIASES;
 175     char *curl_NETRC_FILE;
 176     char *curl_FTP_ACCOUNT;
 177     char *curl_COOKIELIST;
 178     char *curl_FTP_ALTERNATIVE_TO_USER;
 179     char *curl_SSH_PUBLIC_KEYFILE;
 180     char *curl_SSH_PRIVATE_KEYFILE;
 181     char *curl_SSH_HOST_PUBLIC_KEY_MD5;
 182     char *curl_COPYPOSTFIELDS;
 183     char *curl_DNS_SERVERS;
 184     char *curl_MAIL_FROM;
 185     struct curl_slist *curl_MAIL_RCPT;
 186 };
 187
 188 struct ConnectionList
 189 {
 190     Connection *head;
 191     Connection *tail;
 192 };
 193
 194 static ConnectionList connectionList = {NULL, NULL};
 195
 196 typedef struct CURLErrorMapping CURLErrorMapping;
 197
 198 struct CURLErrorMapping
 199 {
 200     char *name;
 201     CURLcode error;
 202 };
 203
 204 CURLErrorMapping errorMap[] =
 205 {
 206     {"CURLE_OK", CURLE_OK},
 207 #if HAVE_DECL_CURLE_UNSUPPORTED_PROTOCOL
 208     {"CURLE_UNSUPPORTED_PROTOCOL", CURLE_UNSUPPORTED_PROTOCOL},
 209 #else
 210     {"CURLE_UNSUPPORTED_PROTOCOL", -1},
 211 #endif
 212 #if HAVE_DECL_CURLE_FAILED_INIT
 213     {"CURLE_FAILED_INIT", CURLE_FAILED_INIT},
 214 #else
 215     {"CURLE_FAILED_INIT", -1},
 216 #endif
 217 #if HAVE_DECL_CURLE_URL_MALFORMAT
 218     {"CURLE_URL_MALFORMAT", CURLE_URL_MALFORMAT},
 219 #else
 220     {"CURLE_URL_MALFORMAT", -1},
 221 #endif
 222 #if HAVE_DECL_CURLE_URL_MALFORMAT_USER
 223     {"CURLE_URL_MALFORMAT_USER", CURLE_URL_MALFORMAT_USER},
 224 #else
 225     {"CURLE_URL_MALFORMAT_USER", -1},
 226 #endif
 227 #if HAVE_DECL_CURLE_COULDNT_RESOLVE_PROXY
 228     {"CURLE_COULDNT_RESOLVE_PROXY", CURLE_COULDNT_RESOLVE_PROXY},
 229 #else
 230     {"CURLE_COULDNT_RESOLVE_PROXY", -1},
 231 #endif
 232 #if HAVE_DECL_CURLE_COULDNT_RESOLVE_HOST
 233     {"CURLE_COULDNT_RESOLVE_HOST", CURLE_COULDNT_RESOLVE_HOST},
 234 #else
 235     {"CURLE_COULDNT_RESOLVE_HOST", -1},
 236 #endif
 237 #if HAVE_DECL_CURLE_COULDNT_CONNECT
 238     {"CURLE_COULDNT_CONNECT", CURLE_COULDNT_CONNECT},
 239 #else
 240     {"CURLE_COULDNT_CONNECT", -1},
 241 #endif
 242 #if HAVE_DECL_CURLE_FTP_WEIRD_SERVER_REPLY
 243     {"CURLE_FTP_WEIRD_SERVER_REPLY", CURLE_FTP_WEIRD_SERVER_REPLY},
 244 #else
 245     {"CURLE_FTP_WEIRD_SERVER_REPLY", -1},
 246 #endif
 247 #if HAVE_DECL_CURLE_FTP_ACCESS_DENIED
 248     {"CURLE_FTP_ACCESS_DENIED", CURLE_FTP_ACCESS_DENIED},
 249 #else
 250     {"CURLE_FTP_ACCESS_DENIED", -1},
 251 #endif
 252 #if HAVE_DECL_CURLE_FTP_USER_PASSWORD_INCORRECT
 253     {"CURLE_FTP_USER_PASSWORD_INCORRECT", CURLE_FTP_USER_PASSWORD_INCORRECT},
 254 #else
 255     {"CURLE_FTP_USER_PASSWORD_INCORRECT", -1},
 256 #endif
 257 #if HAVE_DECL_CURLE_FTP_WEIRD_PASS_REPLY
 258     {"CURLE_FTP_WEIRD_PASS_REPLY", CURLE_FTP_WEIRD_PASS_REPLY},
 259 #else
 260     {"CURLE_FTP_WEIRD_PASS_REPLY", -1},
 261 #endif
 262 #if HAVE_DECL_CURLE_FTP_WEIRD_USER_REPLY
 263     {"CURLE_FTP_WEIRD_USER_REPLY", CURLE_FTP_WEIRD_USER_REPLY},
 264 #else
 265     {"CURLE_FTP_WEIRD_USER_REPLY", -1},
 266 #endif
 267 #if HAVE_DECL_CURLE_FTP_WEIRD_PASV_REPLY
 268     {"CURLE_FTP_WEIRD_PASV_REPLY", CURLE_FTP_WEIRD_PASV_REPLY},
 269 #else
 270     {"CURLE_FTP_WEIRD_PASV_REPLY", -1},
 271 #endif
 272 #if HAVE_DECL_CURLE_FTP_WEIRD_227_FORMAT
 273     {"CURLE_FTP_WEIRD_227_FORMAT", CURLE_FTP_WEIRD_227_FORMAT},
 274 #else
 275     {"CURLE_FTP_WEIRD_227_FORMAT", -1},
 276 #endif
 277 #if HAVE_DECL_CURLE_FTP_CANT_GET_HOST
 278     {"CURLE_FTP_CANT_GET_HOST", CURLE_FTP_CANT_GET_HOST},
 279 #else
 280     {"CURLE_FTP_CANT_GET_HOST", -1},
 281 #endif
 282 #if HAVE_DECL_CURLE_FTP_CANT_RECONNECT
 283     {"CURLE_FTP_CANT_RECONNECT", CURLE_FTP_CANT_RECONNECT},
 284 #else
 285     {"CURLE_FTP_CANT_RECONNECT", -1},
 286 #endif
 287 #if HAVE_DECL_CURLE_FTP_COULDNT_SET_BINARY
 288     {"CURLE_FTP_COULDNT_SET_BINARY", CURLE_FTP_COULDNT_SET_BINARY},
 289 #else
 290     {"CURLE_FTP_COULDNT_SET_BINARY", -1},
 291 #endif
 292 #if HAVE_DECL_CURLE_PARTIAL_FILE
 293     {"CURLE_PARTIAL_FILE", CURLE_PARTIAL_FILE},
 294 #else
 295     {"CURLE_PARTIAL_FILE", -1},
 296 #endif
 297 #if HAVE_DECL_CURLE_FTP_COULDNT_RETR_FILE
 298     {"CURLE_FTP_COULDNT_RETR_FILE", CURLE_FTP_COULDNT_RETR_FILE},
 299 #else
 300     {"CURLE_FTP_COULDNT_RETR_FILE", -1},
 301 #endif
 302 #if HAVE_DECL_CURLE_FTP_WRITE_ERROR
 303     {"CURLE_FTP_WRITE_ERROR", CURLE_FTP_WRITE_ERROR},
 304 #else
 305     {"CURLE_FTP_WRITE_ERROR", -1},
 306 #endif
 307 #if HAVE_DECL_CURLE_FTP_QUOTE_ERROR
 308     {"CURLE_FTP_QUOTE_ERROR", CURLE_FTP_QUOTE_ERROR},
 309 #else
 310     {"CURLE_FTP_QUOTE_ERROR", -1},
 311 #endif
 312 #if HAVE_DECL_CURLE_HTTP_RETURNED_ERROR
 313     {"CURLE_HTTP_RETURNED_ERROR", CURLE_HTTP_RETURNED_ERROR},
 314 #else
 315     {"CURLE_HTTP_RETURNED_ERROR", -1},
 316 #endif
 317 #if HAVE_DECL_CURLE_WRITE_ERROR
 318     {"CURLE_WRITE_ERROR", CURLE_WRITE_ERROR},
 319 #else
 320     {"CURLE_WRITE_ERROR", -1},
 321 #endif
 322 #if HAVE_DECL_CURLE_MALFORMAT_USER
 323     {"CURLE_MALFORMAT_USER", CURLE_MALFORMAT_USER},
 324 #else
 325     {"CURLE_MALFORMAT_USER", -1},
 326 #endif
 327 #if HAVE_DECL_CURLE_FTP_COULDNT_STOR_FILE
 328     {"CURLE_FTP_COULDNT_STOR_FILE", CURLE_FTP_COULDNT_STOR_FILE},
 329 #else
 330     {"CURLE_FTP_COULDNT_STOR_FILE", -1},
 331 #endif
 332 #if HAVE_DECL_CURLE_READ_ERROR
 333     {"CURLE_READ_ERROR", CURLE_READ_ERROR},
 334 #else
 335     {"CURLE_READ_ERROR", -1},
 336 #endif
 337 #if HAVE_DECL_CURLE_OUT_OF_MEMORY
 338     {"CURLE_OUT_OF_MEMORY", CURLE_OUT_OF_MEMORY},
 339 #else
 340     {"CURLE_OUT_OF_MEMORY", -1},
 341 #endif
 342 #if HAVE_DECL_CURLE_OPERATION_TIMEOUTED
 343     {"CURLE_OPERATION_TIMEOUTED", CURLE_OPERATION_TIMEOUTED},
 344 #else
 345     {"CURLE_OPERATION_TIMEOUTED", -1},
 346 #endif
 347 #if HAVE_DECL_CURLE_FTP_COULDNT_SET_ASCII
 348     {"CURLE_FTP_COULDNT_SET_ASCII", CURLE_FTP_COULDNT_SET_ASCII},
 349 #else
 350     {"CURLE_FTP_COULDNT_SET_ASCII", -1},
 351 #endif
 352 #if HAVE_DECL_CURLE_FTP_PORT_FAILED
 353     {"CURLE_FTP_PORT_FAILED", CURLE_FTP_PORT_FAILED},
 354 #else
 355     {"CURLE_FTP_PORT_FAILED", -1},
 356 #endif
 357 #if HAVE_DECL_CURLE_FTP_COULDNT_USE_REST
 358     {"CURLE_FTP_COULDNT_USE_REST", CURLE_FTP_COULDNT_USE_REST},
 359 #else
 360     {"CURLE_FTP_COULDNT_USE_REST", -1},
 361 #endif
 362 #if HAVE_DECL_CURLE_FTP_COULDNT_GET_SIZE
 363     {"CURLE_FTP_COULDNT_GET_SIZE", CURLE_FTP_COULDNT_GET_SIZE},
 364 #else
 365     {"CURLE_FTP_COULDNT_GET_SIZE", -1},
 366 #endif
 367 #if HAVE_DECL_CURLE_HTTP_RANGE_ERROR
 368     {"CURLE_HTTP_RANGE_ERROR", CURLE_HTTP_RANGE_ERROR},
 369 #else
 370     {"CURLE_HTTP_RANGE_ERROR", -1},
 371 #endif
 372 #if HAVE_DECL_CURLE_HTTP_POST_ERROR
 373     {"CURLE_HTTP_POST_ERROR", CURLE_HTTP_POST_ERROR},
 374 #else
 375     {"CURLE_HTTP_POST_ERROR", -1},
 376 #endif
 377 #if HAVE_DECL_CURLE_SSL_CONNECT_ERROR
 378     {"CURLE_SSL_CONNECT_ERROR", CURLE_SSL_CONNECT_ERROR},
 379 #else
 380     {"CURLE_SSL_CONNECT_ERROR", -1},
 381 #endif
 382 #if HAVE_DECL_CURLE_BAD_DOWNLOAD_RESUME
 383     {"CURLE_BAD_DOWNLOAD_RESUME", CURLE_BAD_DOWNLOAD_RESUME},
 384 #else
 385     {"CURLE_BAD_DOWNLOAD_RESUME", -1},
 386 #endif
 387 #if HAVE_DECL_CURLE_FILE_COULDNT_READ_FILE
 388     {"CURLE_FILE_COULDNT_READ_FILE", CURLE_FILE_COULDNT_READ_FILE},
 389 #else
 390     {"CURLE_FILE_COULDNT_READ_FILE", -1},
 391 #endif
 392 #if HAVE_DECL_CURLE_LDAP_CANNOT_BIND
 393     {"CURLE_LDAP_CANNOT_BIND", CURLE_LDAP_CANNOT_BIND},
 394 #else
 395     {"CURLE_LDAP_CANNOT_BIND", -1},
 396 #endif
 397 #if HAVE_DECL_CURLE_LDAP_SEARCH_FAILED
 398     {"CURLE_LDAP_SEARCH_FAILED", CURLE_LDAP_SEARCH_FAILED},
 399 #else
 400     {"CURLE_LDAP_SEARCH_FAILED", -1},
 401 #endif
 402 #if HAVE_DECL_CURLE_LIBRARY_NOT_FOUND
 403     {"CURLE_LIBRARY_NOT_FOUND", CURLE_LIBRARY_NOT_FOUND},
 404 #else
 405     {"CURLE_LIBRARY_NOT_FOUND", -1},
 406 #endif
 407 #if HAVE_DECL_CURLE_FUNCTION_NOT_FOUND
 408     {"CURLE_FUNCTION_NOT_FOUND", CURLE_FUNCTION_NOT_FOUND},
 409 #else
 410     {"CURLE_FUNCTION_NOT_FOUND", -1},
 411 #endif
 412 #if HAVE_DECL_CURLE_ABORTED_BY_CALLBACK
 413     {"CURLE_ABORTED_BY_CALLBACK", CURLE_ABORTED_BY_CALLBACK},
 414 #else
 415     {"CURLE_ABORTED_BY_CALLBACK", -1},
 416 #endif
 417 #if HAVE_DECL_CURLE_BAD_FUNCTION_ARGUMENT
 418     {"CURLE_BAD_FUNCTION_ARGUMENT", CURLE_BAD_FUNCTION_ARGUMENT},
 419 #else
 420     {"CURLE_BAD_FUNCTION_ARGUMENT", -1},
 421 #endif
 422 #if HAVE_DECL_CURLE_BAD_CALLING_ORDER
 423     {"CURLE_BAD_CALLING_ORDER", CURLE_BAD_CALLING_ORDER},
 424 #else
 425     {"CURLE_BAD_CALLING_ORDER", -1},
 426 #endif
 427 #if HAVE_DECL_CURLE_INTERFACE_FAILED
 428     {"CURLE_INTERFACE_FAILED", CURLE_INTERFACE_FAILED},
 429 #else
 430     {"CURLE_INTERFACE_FAILED", -1},
 431 #endif
 432 #if HAVE_DECL_CURLE_BAD_PASSWORD_ENTERED
 433     {"CURLE_BAD_PASSWORD_ENTERED", CURLE_BAD_PASSWORD_ENTERED},
 434 #else
 435     {"CURLE_BAD_PASSWORD_ENTERED", -1},
 436 #endif
 437 #if HAVE_DECL_CURLE_TOO_MANY_REDIRECTS
 438     {"CURLE_TOO_MANY_REDIRECTS", CURLE_TOO_MANY_REDIRECTS},
 439 #else
 440     {"CURLE_TOO_MANY_REDIRECTS", -1},
 441 #endif
 442 #if HAVE_DECL_CURLE_UNKNOWN_TELNET_OPTION
 443     {"CURLE_UNKNOWN_TELNET_OPTION", CURLE_UNKNOWN_TELNET_OPTION},
 444 #else
 445     {"CURLE_UNKNOWN_TELNET_OPTION", -1},
 446 #endif
 447 #if HAVE_DECL_CURLE_TELNET_OPTION_SYNTAX
 448     {"CURLE_TELNET_OPTION_SYNTAX", CURLE_TELNET_OPTION_SYNTAX},
 449 #else
 450     {"CURLE_TELNET_OPTION_SYNTAX", -1},
 451 #endif
 452 #if HAVE_DECL_CURLE_SSL_PEER_CERTIFICATE
 453     {"CURLE_SSL_PEER_CERTIFICATE", CURLE_SSL_PEER_CERTIFICATE},
 454 #else
 455     {"CURLE_SSL_PEER_CERTIFICATE", -1},
 456 #endif
 457 #if HAVE_DECL_CURLE_GOT_NOTHING
 458     {"CURLE_GOT_NOTHING", CURLE_GOT_NOTHING},
 459 #else
 460     {"CURLE_GOT_NOTHING", -1},
 461 #endif
 462 #if HAVE_DECL_CURLE_SSL_ENGINE_NOTFOUND
 463     {"CURLE_SSL_ENGINE_NOTFOUND", CURLE_SSL_ENGINE_NOTFOUND},
 464 #else
 465     {"CURLE_SSL_ENGINE_NOTFOUND", -1},
 466 #endif
 467 #if HAVE_DECL_CURLE_SSL_ENGINE_SETFAILED
 468     {"CURLE_SSL_ENGINE_SETFAILED", CURLE_SSL_ENGINE_SETFAILED},
 469 #else
 470     {"CURLE_SSL_ENGINE_SETFAILED", -1},
 471 #endif
 472 #if HAVE_DECL_CURLE_SEND_ERROR
 473     {"CURLE_SEND_ERROR", CURLE_SEND_ERROR},
 474 #else
 475     {"CURLE_SEND_ERROR", -1},
 476 #endif
 477 #if HAVE_DECL_CURLE_RECV_ERROR
 478     {"CURLE_RECV_ERROR", CURLE_RECV_ERROR},
 479 #else
 480     {"CURLE_RECV_ERROR", -1},
 481 #endif
 482 #if HAVE_DECL_CURLE_SHARE_IN_USE
 483     {"CURLE_SHARE_IN_USE", CURLE_SHARE_IN_USE},
 484 #else
 485     {"CURLE_SHARE_IN_USE", -1},
 486 #endif
 487 #if HAVE_DECL_CURLE_SSL_CERTPROBLEM
 488     {"CURLE_SSL_CERTPROBLEM", CURLE_SSL_CERTPROBLEM},
 489 #else
 490     {"CURLE_SSL_CERTPROBLEM", -1},
 491 #endif
 492 #if HAVE_DECL_CURLE_SSL_CIPHER
 493     {"CURLE_SSL_CIPHER", CURLE_SSL_CIPHER},
 494 #else
 495     {"CURLE_SSL_CIPHER", -1},
 496 #endif
 497 #if HAVE_DECL_CURLE_SSL_CACERT
 498     {"CURLE_SSL_CACERT", CURLE_SSL_CACERT},
 499 #else
 500     {"CURLE_SSL_CACERT", -1},
 501 #endif
 502 #if HAVE_DECL_CURLE_BAD_CONTENT_ENCODING
 503     {"CURLE_BAD_CONTENT_ENCODING", CURLE_BAD_CONTENT_ENCODING},
 504 #else
 505     {"CURLE_BAD_CONTENT_ENCODING", -1},
 506 #endif
 507 #if HAVE_DECL_CURLE_LDAP_INVALID_URL
 508     {"CURLE_LDAP_INVALID_URL", CURLE_LDAP_INVALID_URL},
 509 #else
 510     {"CURLE_LDAP_INVALID_URL", -1},
 511 #endif
 512 #if HAVE_DECL_CURLE_FILESIZE_EXCEEDED
 513     {"CURLE_FILESIZE_EXCEEDED", CURLE_FILESIZE_EXCEEDED},
 514 #else
 515     {"CURLE_FILESIZE_EXCEEDED", -1},
 516 #endif
 517 #if HAVE_DECL_CURLE_FTP_SSL_FAILED
 518     {"CURLE_FTP_SSL_FAILED", CURLE_FTP_SSL_FAILED},
 519 #else
 520     {"CURLE_FTP_SSL_FAILED", -1},
 521 #endif
 522 #if HAVE_DECL_CURLE_SEND_FAIL_REWIND
 523     {"CURLE_SEND_FAIL_REWIND", CURLE_SEND_FAIL_REWIND},
 524 #else
 525     {"CURLE_SEND_FAIL_REWIND", -1},
 526 #endif
 527 #if HAVE_DECL_CURLE_SSL_ENGINE_INITFAILED
 528     {"CURLE_SSL_ENGINE_INITFAILED", CURLE_SSL_ENGINE_INITFAILED},
 529 #else
 530     {"CURLE_SSL_ENGINE_INITFAILED", -1},
 531 #endif
 532 #if HAVE_DECL_CURLE_LOGIN_DENIED
 533     {"CURLE_LOGIN_DENIED", CURLE_LOGIN_DENIED},
 534 #else
 535     {"CURLE_LOGIN_DENIED", -1},
 536 #endif
 537 #if HAVE_DECL_CURLE_TFTP_NOTFOUND
 538     {"CURLE_TFTP_NOTFOUND", CURLE_TFTP_NOTFOUND},
 539 #else
 540     {"CURLE_TFTP_NOTFOUND", -1},
 541 #endif
 542 #if HAVE_DECL_CURLE_TFTP_PERM
 543     {"CURLE_TFTP_PERM", CURLE_TFTP_PERM},
 544 #else
 545     {"CURLE_TFTP_PERM", -1},
 546 #endif
 547 #if HAVE_DECL_CURLE_REMOTE_DISK_FULL
 548     {"CURLE_REMOTE_DISK_FULL", CURLE_REMOTE_DISK_FULL},
 549 #else
 550     {"CURLE_REMOTE_DISK_FULL", -1},
 551 #endif
 552 #if HAVE_DECL_CURLE_TFTP_ILLEGAL
 553     {"CURLE_TFTP_ILLEGAL", CURLE_TFTP_ILLEGAL},
 554 #else
 555     {"CURLE_TFTP_ILLEGAL", -1},
 556 #endif
 557 #if HAVE_DECL_CURLE_TFTP_UNKNOWNID
 558     {"CURLE_TFTP_UNKNOWNID", CURLE_TFTP_UNKNOWNID},
 559 #else
 560     {"CURLE_TFTP_UNKNOWNID", -1},
 561 #endif
 562 #if HAVE_DECL_CURLE_REMOTE_FILE_EXISTS
 563     {"CURLE_REMOTE_FILE_EXISTS", CURLE_REMOTE_FILE_EXISTS},
 564 #else
 565     {"CURLE_REMOTE_FILE_EXISTS", -1},
 566 #endif
 567 #if HAVE_DECL_CURLE_TFTP_NOSUCHUSER
 568     {"CURLE_TFTP_NOSUCHUSER", CURLE_TFTP_NOSUCHUSER},
 569 #else
 570     {"CURLE_TFTP_NOSUCHUSER", -1},
 571 #endif
 572 #if HAVE_DECL_CURLE_CONV_FAILED
 573     {"CURLE_CONV_FAILED", CURLE_CONV_FAILED},
 574 #else
 575     {"CURLE_CONV_FAILED", -1},
 576 #endif
 577 #if HAVE_DECL_CURLE_CONV_REQD
 578     {"CURLE_CONV_REQD", CURLE_CONV_REQD},
 579 #else
 580     {"CURLE_CONV_REQD", -1},
 581 #endif
 582 #if HAVE_DECL_CURLE_SSL_CACERT_BADFILE
 583     {"CURLE_SSL_CACERT_BADFILE", CURLE_SSL_CACERT_BADFILE},
 584 #else
 585     {"CURLE_SSL_CACERT_BADFILE", -1},
 586 #endif
 587 #if HAVE_DECL_CURLE_REMOTE_FILE_NOT_FOUND
 588     {"CURLE_REMOTE_FILE_NOT_FOUND", CURLE_REMOTE_FILE_NOT_FOUND},
 589 #else
 590     {"CURLE_REMOTE_FILE_NOT_FOUND", -1},
 591 #endif
 592 #if HAVE_DECL_CURLE_SSH
 593     {"CURLE_SSH", CURLE_SSH},
 594 #else
 595     {"CURLE_SSH", -1},
 596 #endif
 597 #if HAVE_DECL_CURLE_SSL_SHUTDOWN_FAILED
 598     {"CURLE_SSL_SHUTDOWN_FAILED", CURLE_SSL_SHUTDOWN_FAILED},
 599 #else
 600     {"CURLE_SSL_SHUTDOWN_FAILED", -1},
 601 #endif
 602 #if HAVE_DECL_CURLE_AGAIN
 603     {"CURLE_AGAIN", CURLE_AGAIN},
 604 #else
 605     {"CURLE_AGAIN", -1},
 606 #endif
 607     {NULL, 0}
 608 };
 609
 610 typedef struct CURLOptionMapping CURLOptionMapping;
 611
 612 struct CURLOptionMapping
 613 {
 614     void (*optionHandler)(Connection *, value);
 615     char *name;
 616     OcamlValue ocamlValue;
 617 };
 618
 619 static char* strdup_ml(value v)
 620 {
 621   char* p = NULL;
 622   p = malloc(caml_string_length(v)+1);
 623   memcpy(p,String_val(v),caml_string_length(v)+1); // caml strings have terminating zero
 624   return p;
 625 }
 626
 627 /* prepends to the beginning of list */
 628 static struct curl_slist* curl_slist_prepend_ml(struct curl_slist* list, value v)
 629 {
 630   /* FIXME check NULLs */
 631   struct curl_slist* new_item = malloc(sizeof(struct curl_slist));
 632
 633   new_item->next = list;
 634   new_item->data = strdup_ml(v);
 635
 636   return new_item;
 637 }
 638
 639 static void free_curl_slist(struct curl_slist *slist)
 640 {
 641     if (NULL == slist)
 642       return;
 643
 644     curl_slist_free_all(slist);
 645 }
 646
 647 static void raiseError(Connection *conn, CURLcode code)
 648 {
 649     CAMLparam0();
 650     CAMLlocal1(exceptionData);
 651     value *exception;
 652     char *errorString = "Unknown Error";
 653     int i;
 654
 655     for (i = 0; errorMap[i].name != NULL; i++)
 656     {
 657         if (errorMap[i].error == code)
 658         {
 659             errorString = errorMap[i].name;
 660             break;
 661         }
 662     }
 663
 664     exceptionData = caml_alloc_tuple(3);
 665
 666     Store_field(exceptionData, 0, Val_int(code));
 667     Store_field(exceptionData, 1, Val_int(code));
 668     Store_field(exceptionData, 2, caml_copy_string(errorString));
 669
 670     if (conn != NULL && conn->curl_ERRORBUFFER != NULL)
 671     {
 672         Store_field(Field(conn->ocamlValues, Ocaml_ERRORBUFFER), 0, caml_copy_string(conn->curl_ERRORBUFFER));
 673     }
 674
 675     exception = caml_named_value("CurlException");
 676
 677     if (exception == NULL)
 678         caml_failwith("CurlException not registered");
 679
 680     caml_raise_with_arg(*exception, exceptionData);
 681
 682     CAMLreturn0;
 683 }
 684
 685 static void resetOcamlValues(Connection* connection)
 686 {
 687     int i;
 688
 689     for (i = 0; i < OcamlValuesSize; i++)
 690         Store_field(connection->ocamlValues, i, Val_unit);
 691 }
 692
 693 static Connection* allocConnection(CURL* h)
 694 {
 695     Connection* connection = (Connection *)malloc(sizeof(Connection));
 696
 697     connection->ocamlValues = caml_alloc(OcamlValuesSize, 0);
 698     resetOcamlValues(connection);
 699     caml_register_global_root(&connection->ocamlValues);
 700
 701     connection->connection = h;
 702
 703     connection->next = NULL;
 704     connection->prev = NULL;
 705
 706     if (connectionList.tail == NULL)
 707     {
 708         connectionList.tail = connection;
 709         connectionList.head = connection;
 710     }
 711     else
 712     {
 713         connection->prev = connectionList.head;
 714         connectionList.head->next = connection;
 715         connectionList.head = connection;
 716     }
 717
 718     connection->refcount = 0;
 719
 720     connection->curl_URL = NULL;
 721     connection->curl_PROXY = NULL;
 722     connection->curl_USERPWD = NULL;
 723     connection->curl_PROXYUSERPWD = NULL;
 724     connection->curl_RANGE = NULL;
 725     connection->curl_ERRORBUFFER = NULL;
 726     connection->curl_POSTFIELDS = NULL;
 727     connection->curl_POSTFIELDSIZE = -1;
 728     connection->curl_REFERER = NULL;
 729     connection->curl_USERAGENT = NULL;
 730     connection->curl_FTPPORT = NULL;
 731     connection->curl_COOKIE = NULL;
 732     connection->curl_HTTPHEADER = NULL;
 733     connection->httpPostBuffers = NULL;
 734     connection->httpPostFirst = NULL;
 735     connection->httpPostLast = NULL;
 736     connection->curl_SSLCERT = NULL;
 737     connection->curl_SSLCERTTYPE = NULL;
 738     connection->curl_SSLCERTPASSWD = NULL;
 739     connection->curl_SSLKEY = NULL;
 740     connection->curl_SSLKEYTYPE = NULL;
 741     connection->curl_SSLKEYPASSWD = NULL;
 742     connection->curl_SSLENGINE = NULL;
 743     connection->curl_QUOTE = NULL;
 744     connection->curl_POSTQUOTE = NULL;
 745     connection->curl_COOKIEFILE = NULL;
 746     connection->curl_CUSTOMREQUEST = NULL;
 747     connection->curl_INTERFACE = NULL;
 748     connection->curl_CAINFO = NULL;
 749     connection->curl_CAPATH = NULL;
 750     connection->curl_RANDOM_FILE = NULL;
 751     connection->curl_EGDSOCKET = NULL;
 752     connection->curl_COOKIEJAR = NULL;
 753     connection->curl_SSL_CIPHER_LIST = NULL;
 754     connection->curl_PRIVATE = NULL;
 755     connection->curl_HTTP200ALIASES = NULL;
 756     connection->curl_NETRC_FILE = NULL;
 757     connection->curl_FTP_ACCOUNT = NULL;
 758     connection->curl_COOKIELIST = NULL;
 759     connection->curl_FTP_ALTERNATIVE_TO_USER = NULL;
 760     connection->curl_SSH_PUBLIC_KEYFILE = NULL;
 761     connection->curl_SSH_PRIVATE_KEYFILE = NULL;
 762     connection->curl_COPYPOSTFIELDS = NULL;
 763     connection->curl_RESOLVE = NULL;
 764     connection->curl_DNS_SERVERS = NULL;
 765     connection->curl_MAIL_FROM = NULL;
 766     connection->curl_MAIL_RCPT = NULL;
 767
 768     return connection;
 769 }
 770
 771 static Connection *newConnection(void)
 772 {
 773     CURL* h;
 774
 775     caml_enter_blocking_section();
 776     h = curl_easy_init();
 777     caml_leave_blocking_section();
 778
 779     return allocConnection(h);
 780 }
 781
 782 static void free_if(void* p) { if (NULL != p) free(p); }
 783
 784 static void removeConnection(Connection *connection, int finalization)
 785 {
 786     const char* fin_url = NULL;
 787
 788     if (!connection->connection)
 789     {
 790       return; /* already cleaned up */
 791     }
 792
 793     if (finalization)
 794     {
 795       /* cannot engage OCaml runtime at finalization, just report leak */
 796       if (CURLE_OK != curl_easy_getinfo(connection->connection, CURLINFO_EFFECTIVE_URL, &fin_url) || NULL == fin_url)
 797       {
 798         fin_url = "unknown";
 799       }
 800       fprintf(stderr,"Curl: handle %p leaked, conn %p, url %s\n", connection->connection, connection, fin_url);
 801       fflush(stderr);
 802     }
 803     else
 804     {
 805       caml_enter_blocking_section();
 806       curl_easy_cleanup(connection->connection);
 807       caml_leave_blocking_section();
 808     }
 809
 810     connection->connection = NULL;
 811
 812     if (connectionList.tail == connection)
 813         connectionList.tail = connectionList.tail->next;
 814     if (connectionList.head == connection)
 815         connectionList.head = connectionList.head->prev;
 816
 817     if (connection->next != NULL)
 818         connection->next->prev = connection->prev;
 819     if (connection->prev != NULL)
 820         connection->prev->next = connection->next;
 821
 822     caml_remove_global_root(&connection->ocamlValues);
 823
 824     free_if(connection->curl_URL);
 825     free_if(connection->curl_PROXY);
 826     free_if(connection->curl_USERPWD);
 827     free_if(connection->curl_PROXYUSERPWD);
 828     free_if(connection->curl_RANGE);
 829     free_if(connection->curl_ERRORBUFFER);
 830     free_if(connection->curl_POSTFIELDS);
 831     free_if(connection->curl_REFERER);
 832     free_if(connection->curl_USERAGENT);
 833     free_if(connection->curl_FTPPORT);
 834     free_if(connection->curl_COOKIE);
 835     free_curl_slist(connection->curl_HTTPHEADER);
 836     free_curl_slist(connection->httpPostBuffers);
 837     if (connection->httpPostFirst != NULL)
 838         curl_formfree(connection->httpPostFirst);
 839     free_curl_slist(connection->curl_RESOLVE);
 840     free_if(connection->curl_SSLCERT);
 841     free_if(connection->curl_SSLCERTTYPE);
 842     free_if(connection->curl_SSLCERTPASSWD);
 843     free_if(connection->curl_SSLKEY);
 844     free_if(connection->curl_SSLKEYTYPE);
 845     free_if(connection->curl_SSLKEYPASSWD);
 846     free_if(connection->curl_SSLENGINE);
 847     free_curl_slist(connection->curl_QUOTE);
 848     free_curl_slist(connection->curl_POSTQUOTE);
 849     free_if(connection->curl_COOKIEFILE);
 850     free_if(connection->curl_CUSTOMREQUEST);
 851     free_if(connection->curl_INTERFACE);
 852     free_if(connection->curl_CAINFO);
 853     free_if(connection->curl_CAPATH);
 854     free_if(connection->curl_RANDOM_FILE);
 855     free_if(connection->curl_EGDSOCKET);
 856     free_if(connection->curl_COOKIEJAR);
 857     free_if(connection->curl_SSL_CIPHER_LIST);
 858     free_if(connection->curl_PRIVATE);
 859     free_curl_slist(connection->curl_HTTP200ALIASES);
 860     free_if(connection->curl_NETRC_FILE);
 861     free_if(connection->curl_FTP_ACCOUNT);
 862     free_if(connection->curl_COOKIELIST);
 863     free_if(connection->curl_FTP_ALTERNATIVE_TO_USER);
 864     free_if(connection->curl_SSH_PUBLIC_KEYFILE);
 865     free_if(connection->curl_SSH_PRIVATE_KEYFILE);
 866     free_if(connection->curl_COPYPOSTFIELDS);
 867     free_if(connection->curl_DNS_SERVERS);
 868     free_if(connection->curl_MAIL_FROM);
 869     free_curl_slist(connection->curl_MAIL_RCPT);
 870 }
 871
 872 #if 1
 873 static void checkConnection(Connection * connection)
 874 {
 875   (void)connection;
 876 }
 877 #else
 878 static void checkConnection(Connection *connection)
 879 {
 880     Connection *listIter;
 881
 882     listIter = connectionList.tail;
 883
 884     while (listIter != NULL)
 885     {
 886         if (listIter == connection)
 887             return;
 888
 889         listIter = listIter->next;
 890     }
 891
 892     caml_failwith("Invalid Connection");
 893 }
 894 #endif
 895
 896 static Connection* findConnection(CURL* h)
 897 {
 898     Connection *listIter;
 899
 900     listIter = connectionList.tail;
 901
 902     while (listIter != NULL)
 903     {
 904         if (listIter->connection == h)
 905             return listIter;
 906
 907         listIter = listIter->next;
 908     }
 909
 910     caml_failwith("Unknown handle");
 911 }
 912
 913 void op_curl_easy_finalize(value v)
 914 {
 915   Connection* conn = Connection_val(v);
 916   /* same connection may be referenced by several different
 917      OCaml values, see e.g. caml_curl_multi_remove_finished */
 918   conn->refcount--;
 919   if (0 == conn->refcount)
 920   {
 921     removeConnection(conn, 1);
 922     free(conn);
 923   }
 924 }
 925
 926 int op_curl_easy_compare(value v1, value v2)
 927 {
 928   size_t p1 = (size_t)Connection_val(v1);
 929   size_t p2 = (size_t)Connection_val(v2);
 930   return (p1 == p2 ? 0 : (p1 > p2 ? 1 : -1)); /* compare addresses */
 931 }
 932
 933 intnat op_curl_easy_hash(value v)
 934 {
 935   return (size_t)Connection_val(v); /* address */
 936 }
 937
 938 static struct custom_operations curl_easy_ops = {
 939   "ygrek.curl_easy",
 940   op_curl_easy_finalize,
 941   op_curl_easy_compare,
 942   op_curl_easy_hash,
 943   custom_serialize_default,
 944   custom_deserialize_default,
 945 #if defined(custom_compare_ext_default)
 946   custom_compare_ext_default,
 947 #endif
 948 };
 949
 950 value caml_curl_alloc(Connection* conn)
 951 {
 952   value v = caml_alloc_custom(&curl_easy_ops, sizeof(Connection*), 0, 1);
 953   Connection_val(v) = conn;
 954   conn->refcount++;
 955   return v;
 956 }
 957
 958 static size_t cb_WRITEFUNCTION(char *ptr, size_t size, size_t nmemb, void *data)
 959 {
 960     caml_leave_blocking_section();
 961
 962     CAMLparam0();
 963     CAMLlocal2(result, str);
 964     Connection *conn = (Connection *)data;
 965     size_t i;
 966
 967     checkConnection(conn);
 968
 969     str = caml_alloc_string(size*nmemb);
 970
 971     for (i = 0; i < size*nmemb; i++)
 972         Byte(str, i) = ptr[i];
 973
 974     result = caml_callback_exn(Field(conn->ocamlValues, Ocaml_WRITEFUNCTION), str);
 975
 976     size_t r = Is_exception_result(result) ? 0 : Int_val(result);
 977     CAMLdrop;
 978
 979     caml_enter_blocking_section();
 980     return r;
 981 }
 982
 983 static size_t cb_READFUNCTION(void *ptr, size_t size, size_t nmemb, void *data)
 984 {
 985     caml_leave_blocking_section();
 986
 987     CAMLparam0();
 988     CAMLlocal1(result);
 989     Connection *conn = (Connection *)data;
 990     size_t length;
 991
 992     checkConnection(conn);
 993
 994     result = caml_callback_exn(Field(conn->ocamlValues, Ocaml_READFUNCTION),
 995                       Val_int(size*nmemb));
 996
 997     if (Is_exception_result(result))
 998     {
 999       CAMLreturnT(size_t,CURL_READFUNC_ABORT);
1000     }
1001
1002     length = caml_string_length(result);
1003
1004     size_t r;
1005
1006     if (length <= size*nmemb)
1007     {
1008       memcpy(ptr, String_val(result), length);
1009       r = length;
1010     }
1011     else
1012     {
1013       r = CURL_READFUNC_ABORT;
1014     }
1015     CAMLdrop;
1016
1017     caml_enter_blocking_section();
1018     return r;
1019 }
1020
1021 static size_t cb_HEADERFUNCTION(char *ptr, size_t size, size_t nmemb, void *data)
1022 {
1023     caml_leave_blocking_section();
1024
1025     CAMLparam0();
1026     CAMLlocal2(result,str);
1027     Connection *conn = (Connection *)data;
1028     size_t i;
1029
1030     checkConnection(conn);
1031
1032     str = caml_alloc_string(size*nmemb);
1033
1034     for (i = 0; i < size*nmemb; i++)
1035         Byte(str, i) = ptr[i];
1036
1037     result = caml_callback_exn(Field(conn->ocamlValues, Ocaml_HEADERFUNCTION), str);
1038
1039     size_t r = Is_exception_result(result) ? 0 : Int_val(result);
1040     CAMLdrop;
1041
1042     caml_enter_blocking_section();
1043     return r;
1044 }
1045
1046 static int cb_PROGRESSFUNCTION(void *data,
1047                             double dlTotal,
1048                             double dlNow,
1049                             double ulTotal,
1050                             double ulNow)
1051 {
1052     caml_leave_blocking_section();
1053
1054     CAMLparam0();
1055     CAMLlocal1(result);
1056     CAMLlocalN(callbackData, 4);
1057     Connection *conn = (Connection *)data;
1058
1059     checkConnection(conn);
1060
1061     callbackData[0] = caml_copy_double(dlTotal);
1062     callbackData[1] = caml_copy_double(dlNow);
1063     callbackData[2] = caml_copy_double(ulTotal);
1064     callbackData[3] = caml_copy_double(ulNow);
1065
1066     result = caml_callbackN_exn(Field(conn->ocamlValues, Ocaml_PROGRESSFUNCTION),
1067                        4, callbackData);
1068
1069     int r = Is_exception_result(result) ? 1 : Bool_val(result);
1070     CAMLdrop;
1071
1072     caml_enter_blocking_section();
1073     return r;
1074 }
1075
1076 static int cb_DEBUGFUNCTION(CURL *debugConnection,
1077                          curl_infotype infoType,
1078                          char *buffer,
1079                          size_t bufferLength,
1080                          void *data)
1081 {
1082     caml_leave_blocking_section();
1083
1084     CAMLparam0();
1085     CAMLlocal3(camlDebugConnection, camlInfoType, camlMessage);
1086     size_t i;
1087     Connection *conn = (Connection *)data;
1088     (void)debugConnection; /* not used */
1089
1090     checkConnection(conn);
1091
1092     camlDebugConnection = (value)conn;
1093     camlInfoType = Val_long(infoType);
1094     camlMessage = caml_alloc_string(bufferLength);
1095
1096     for (i = 0; i < bufferLength; i++)
1097         Byte(camlMessage, i) = buffer[i];
1098
1099     caml_callback3_exn(Field(conn->ocamlValues, Ocaml_DEBUGFUNCTION),
1100               camlDebugConnection,
1101               camlInfoType,
1102               camlMessage);
1103
1104     CAMLdrop;
1105
1106     caml_enter_blocking_section();
1107     return 0;
1108 }
1109
1110 static curlioerr cb_IOCTLFUNCTION(CURL *ioctl,
1111                                int cmd,
1112                                void *data)
1113 {
1114     caml_leave_blocking_section();
1115
1116     CAMLparam0();
1117     CAMLlocal3(camlResult, camlConnection, camlCmd);
1118     Connection *conn = (Connection *)data;
1119     curlioerr result = CURLIOE_OK;
1120     (void)ioctl; /* not used */
1121
1122     checkConnection(conn);
1123
1124     if (cmd == CURLIOCMD_NOP)
1125         camlCmd = Val_long(0);
1126     else if (cmd == CURLIOCMD_RESTARTREAD)
1127         camlCmd = Val_long(1);
1128     else
1129         caml_failwith("Invalid IOCTL Cmd!");
1130
1131     camlConnection = caml_curl_alloc(conn);
1132
1133     camlResult = caml_callback2_exn(Field(conn->ocamlValues, Ocaml_IOCTLFUNCTION),
1134                            camlConnection,
1135                            camlCmd);
1136
1137     if (Is_exception_result(camlResult))
1138     {
1139       result = CURLIOE_FAILRESTART;
1140     }
1141     else
1142     switch (Long_val(camlResult))
1143     {
1144     case 0: /* CURLIOE_OK */
1145         result = CURLIOE_OK;
1146         break;
1147
1148     case 1: /* CURLIOE_UNKNOWNCMD */
1149         result = CURLIOE_UNKNOWNCMD;
1150         break;
1151
1152     case 2: /* CURLIOE_FAILRESTART */
1153         result = CURLIOE_FAILRESTART;
1154         break;
1155
1156     default: /* Incorrect return value, but let's handle it */
1157         result = CURLIOE_FAILRESTART;
1158         break;
1159     }
1160     CAMLdrop;
1161
1162     caml_enter_blocking_section();
1163     return result;
1164 }
1165
1166 #if HAVE_DECL_CURLOPT_SEEKFUNCTION
1167 static int cb_SEEKFUNCTION(void *data,
1168                         curl_off_t offset,
1169                         int origin)
1170 {
1171     caml_leave_blocking_section();
1172
1173     CAMLparam0();
1174     CAMLlocal3(camlResult, camlOffset, camlOrigin);
1175     Connection *conn = (Connection *)data;
1176
1177     camlOffset = caml_copy_int64(offset);
1178
1179     if (origin == SEEK_SET)
1180         camlOrigin = Val_long(0);
1181     else if (origin == SEEK_CUR)
1182         camlOrigin = Val_long(1);
1183     else if (origin == SEEK_END)
1184         camlOrigin = Val_long(2);
1185     else
1186         caml_failwith("Invalid seek code");
1187
1188     camlResult = caml_callback2_exn(Field(conn->ocamlValues,
1189                                  Ocaml_SEEKFUNCTION),
1190                            camlOffset,
1191                            camlOrigin);
1192
1193     int result;
1194     if (Is_exception_result(camlResult))
1195       result = CURL_SEEKFUNC_FAIL;
1196     else
1197     switch (Int_val(camlResult))
1198     {
1199       case 0: result = CURL_SEEKFUNC_OK; break;
1200       case 1: result = CURL_SEEKFUNC_FAIL; break;
1201       case 2: result = CURL_SEEKFUNC_CANTSEEK; break;
1202       default: caml_failwith("Invalid seek result");
1203     }
1204     CAMLdrop;
1205
1206     caml_enter_blocking_section();
1207     return result;
1208 }
1209 #endif
1210
1211 #if HAVE_DECL_CURLOPT_OPENSOCKETFUNCTION
1212 static int cb_OPENSOCKETFUNCTION(void *data,
1213                         curlsocktype purpose,
1214                         struct curl_sockaddr *addr)
1215 {
1216     caml_leave_blocking_section();
1217
1218     CAMLparam0();
1219     CAMLlocal1(result);
1220     Connection *conn = (Connection *)data;
1221     int sock = -1;
1222     (void)purpose; /* not used */
1223
1224     sock = socket(addr->family, addr->socktype, addr->protocol);
1225
1226     if (-1 != sock)
1227     {
1228       /* FIXME windows */
1229       result = caml_callback_exn(Field(conn->ocamlValues, Ocaml_OPENSOCKETFUNCTION), Val_int(sock));
1230       if (Is_exception_result(result))
1231       {
1232         close(sock);
1233         sock = -1;
1234       }
1235     }
1236     CAMLdrop;
1237
1238     caml_enter_blocking_section();
1239     return ((sock == -1) ? CURL_SOCKET_BAD : sock);
1240 }
1241 #endif
1242
1243 /**
1244  **  curl_global_init helper function
1245  **/
1246
1247 CAMLprim value helper_curl_global_init(value initOption)
1248 {
1249     CAMLparam1(initOption);
1250
1251     switch (Long_val(initOption))
1252     {
1253     case 0: /* CURLINIT_GLOBALALL */
1254         CAMLreturn(Val_long(curl_global_init(CURL_GLOBAL_ALL)));
1255         break;
1256
1257     case 1: /* CURLINIT_GLOBALSSL */
1258         CAMLreturn(Val_long(curl_global_init(CURL_GLOBAL_SSL)));
1259         break;
1260
1261     case 2: /* CURLINIT_GLOBALWIN32 */
1262         CAMLreturn(Val_long(curl_global_init(CURL_GLOBAL_WIN32)));
1263         break;
1264
1265     case 3: /* CURLINIT_GLOBALNOTHING */
1266         CAMLreturn(Val_long(curl_global_init(CURL_GLOBAL_NOTHING)));
1267         break;
1268
1269     default:
1270         caml_failwith("Invalid Initialization Option");
1271         break;
1272     }
1273
1274     /* Keep compiler happy, we should never get here due to caml_failwith() */
1275     CAMLreturn(Val_unit);
1276 }
1277
1278 /**
1279  **  curl_global_cleanup helper function
1280  **/
1281
1282 CAMLprim value helper_curl_global_cleanup(void)
1283 {
1284     CAMLparam0();
1285
1286     curl_global_cleanup();
1287
1288     CAMLreturn(Val_unit);
1289 }
1290
1291 /**
1292  ** curl_easy_init helper function
1293  **/
1294 CAMLprim value helper_curl_easy_init(void)
1295 {
1296     CAMLparam0();
1297     CAMLlocal1(result);
1298
1299     result = caml_curl_alloc(newConnection());
1300
1301     CAMLreturn(result);
1302 }
1303
1304 CAMLprim value helper_curl_easy_reset(value conn)
1305 {
1306     CAMLparam1(conn);
1307     Connection *connection = Connection_val(conn);
1308
1309     checkConnection(connection);
1310     curl_easy_reset(connection->connection);
1311     resetOcamlValues(connection);
1312
1313     CAMLreturn(Val_unit);
1314 }
1315
1316 /**
1317  **  curl_easy_setopt helper utility functions
1318  **/
1319
1320 #define SETOPT_FUNCTION(name) \
1321 static void handle_##name##FUNCTION(Connection *conn, value option) \
1322 { \
1323     CAMLparam1(option); \
1324     CURLcode result = CURLE_OK; \
1325     Store_field(conn->ocamlValues, Ocaml_##name##FUNCTION, option); \
1326     result = curl_easy_setopt(conn->connection, CURLOPT_##name##FUNCTION, cb_##name##FUNCTION); \
1327     if (result != CURLE_OK) raiseError(conn, result); \
1328     result = curl_easy_setopt(conn->connection, CURLOPT_##name##DATA, conn); \
1329     if (result != CURLE_OK) raiseError(conn, result); \
1330     CAMLreturn0; \
1331 }
1332
1333 SETOPT_FUNCTION( WRITE)
1334 SETOPT_FUNCTION( READ)
1335 SETOPT_FUNCTION( HEADER)
1336 SETOPT_FUNCTION( PROGRESS)
1337 SETOPT_FUNCTION( DEBUG)
1338
1339 #if HAVE_DECL_CURLOPT_SEEKFUNCTION
1340 SETOPT_FUNCTION( SEEK)
1341 #endif
1342
1343 #if HAVE_DECL_CURLOPT_IOCTLFUNCTION
1344 SETOPT_FUNCTION( IOCTL)
1345 #endif
1346
1347 #if HAVE_DECL_CURLOPT_OPENSOCKETFUNCTION
1348 SETOPT_FUNCTION( OPENSOCKET)
1349 #endif
1350
1351 static void handle_slist(Connection *conn, struct curl_slist** slist, OcamlValue caml_option, CURLoption curl_option, value option)
1352 {
1353     CAMLparam1(option);
1354     CURLcode result = CURLE_OK;
1355
1356     Store_field(conn->ocamlValues, caml_option, option);
1357
1358     free_curl_slist(*slist);
1359     *slist = NULL;
1360
1361     while (Val_emptylist != option)
1362     {
1363         *slist = curl_slist_append(*slist, String_val(Field(option, 0)));
1364
1365         option = Field(option, 1);
1366     }
1367
1368     result = curl_easy_setopt(conn->connection, curl_option, *slist);
1369
1370     if (result != CURLE_OK)
1371         raiseError(conn, result);
1372
1373     CAMLreturn0;
1374 }
1375
1376 static long convert_bit_list(long *map, size_t map_size, value option)
1377 {
1378     CAMLparam1(option);
1379     long bits = 0;
1380     int index;
1381
1382     while (Val_emptylist != option)
1383     {
1384         index = Int_val(Field(option, 0));
1385         if ((index < 0) || ((size_t)index >= map_size))
1386           caml_invalid_argument("convert_bit_list");
1387
1388         bits |= map[index];
1389
1390         option = Field(option, 1);
1391     }
1392
1393     CAMLreturnT(long, bits);
1394 }
1395
1396 #define SETOPT_STRING(name) \
1397 static void handle_##name(Connection *conn, value option) \
1398 { \
1399     CAMLparam1(option); \
1400     CURLcode result = CURLE_OK; \
1401 \
1402     Store_field(conn->ocamlValues, Ocaml_##name, option); \
1403 \
1404     if (conn->curl_##name != NULL) \
1405         free(conn->curl_##name); \
1406 \
1407     conn->curl_##name = strdup(String_val(option)); \
1408 \
1409     result = curl_easy_setopt(conn->connection, CURLOPT_##name, conn->curl_##name); \
1410 \
1411     if (result != CURLE_OK) \
1412         raiseError(conn, result); \
1413 \
1414     CAMLreturn0; \
1415 }
1416
1417 #define SETOPT_VAL_(func_name, curl_option, conv_val) \
1418 static void func_name(Connection *conn, value option) \
1419 { \
1420     CAMLparam1(option); \
1421     CURLcode result = CURLE_OK; \
1422 \
1423     result = curl_easy_setopt(conn->connection, curl_option, conv_val(option)); \
1424 \
1425     if (result != CURLE_OK) \
1426         raiseError(conn, result); \
1427 \
1428     CAMLreturn0; \
1429 }
1430
1431 #define SETOPT_VAL(name, conv) SETOPT_VAL_(handle_##name, CURLOPT_##name, conv)
1432 #define SETOPT_BOOL(name) SETOPT_VAL(name, Bool_val)
1433 #define SETOPT_LONG(name) SETOPT_VAL(name, Long_val)
1434 #define SETOPT_INT64(name) SETOPT_VAL(name, Int64_val)
1435
1436 #define SETOPT_SLIST(name) \
1437 static void handle_##name(Connection* conn, value option) \
1438 { \
1439   handle_slist(conn,&(conn->curl_##name),Ocaml_##name,CURLOPT_##name,option); \
1440 }
1441
1442 SETOPT_STRING( URL)
1443 SETOPT_LONG( INFILESIZE)
1444 SETOPT_STRING( PROXY)
1445 SETOPT_LONG( PROXYPORT)
1446 SETOPT_BOOL( HTTPPROXYTUNNEL)
1447 SETOPT_BOOL( VERBOSE)
1448 SETOPT_BOOL( HEADER)
1449 SETOPT_BOOL( NOPROGRESS)
1450
1451 #if HAVE_DECL_CURLOPT_NOSIGNAL
1452 SETOPT_BOOL( NOSIGNAL)
1453 #endif
1454
1455 SETOPT_BOOL( NOBODY)
1456 SETOPT_BOOL( FAILONERROR)
1457 SETOPT_BOOL( UPLOAD)
1458 SETOPT_BOOL( POST)
1459 SETOPT_BOOL( FTPLISTONLY)
1460 SETOPT_BOOL( FTPAPPEND)
1461
1462
1463 static void handle_NETRC(Connection *conn, value option)
1464 {
1465     CAMLparam1(option);
1466     CURLcode result = CURLE_OK;
1467     long netrc;
1468
1469     switch (Long_val(option))
1470     {
1471     case 0: /* CURL_NETRC_OPTIONAL */
1472         netrc = CURL_NETRC_OPTIONAL;
1473         break;
1474
1475     case 1:/* CURL_NETRC_IGNORED */
1476         netrc = CURL_NETRC_IGNORED;
1477         break;
1478
1479     case 2: /* CURL_NETRC_REQUIRED */
1480         netrc = CURL_NETRC_REQUIRED;
1481         break;
1482
1483     default:
1484         caml_failwith("Invalid NETRC Option");
1485         break;
1486     }
1487
1488     result = curl_easy_setopt(conn->connection,
1489                               CURLOPT_NETRC,
1490                               netrc);
1491
1492     if (result != CURLE_OK)
1493         raiseError(conn, result);
1494
1495     CAMLreturn0;
1496 }
1497
1498 #if HAVE_DECL_CURLOPT_ENCODING
1499 static void handle_ENCODING(Connection *conn, value option)
1500 {
1501     CAMLparam1(option);
1502     CURLcode result = CURLE_OK;
1503
1504     switch (Long_val(option))
1505     {
1506     case 0: /* CURL_ENCODING_NONE */
1507         result = curl_easy_setopt(conn->connection,
1508                                   CURLOPT_ENCODING,
1509                                   "identity");
1510         break;
1511
1512     case 1: /* CURL_ENCODING_DEFLATE */
1513         result = curl_easy_setopt(conn->connection,
1514                                   CURLOPT_ENCODING,
1515                                   "deflate");
1516         break;
1517
1518     case 2: /* CURL_ENCODING_GZIP */
1519         result = curl_easy_setopt(conn->connection,
1520                                   CURLOPT_ENCODING,
1521                                   "gzip");
1522         break;
1523
1524     case 3: /* CURL_ENCODING_ANY */
1525         result = curl_easy_setopt(conn->connection,
1526                                   CURLOPT_ENCODING,
1527                                   "");
1528         break;
1529
1530     default:
1531         caml_failwith("Invalid Encoding Option");
1532         break;
1533     }
1534
1535     if (result != CURLE_OK)
1536         raiseError(conn, result);
1537
1538     CAMLreturn0;
1539 }
1540 #endif
1541
1542
1543 SETOPT_BOOL( FOLLOWLOCATION)
1544 SETOPT_BOOL( TRANSFERTEXT)
1545 SETOPT_BOOL( PUT)
1546 SETOPT_STRING( USERPWD)
1547 SETOPT_STRING( PROXYUSERPWD)
1548 SETOPT_STRING( RANGE)
1549
1550 static void handle_ERRORBUFFER(Connection *conn, value option)
1551 {
1552     CAMLparam1(option);
1553     CURLcode result = CURLE_OK;
1554
1555     Store_field(conn->ocamlValues, Ocaml_ERRORBUFFER, option);
1556
1557     if (conn->curl_ERRORBUFFER != NULL)
1558         free(conn->curl_ERRORBUFFER);
1559
1560     conn->curl_ERRORBUFFER = malloc(sizeof(char) * CURL_ERROR_SIZE);
1561
1562     result = curl_easy_setopt(conn->connection,
1563                               CURLOPT_ERRORBUFFER,
1564                               conn->curl_ERRORBUFFER);
1565
1566     if (result != CURLE_OK)
1567         raiseError(conn, result);
1568
1569     CAMLreturn0;
1570 }
1571
1572 SETOPT_LONG( TIMEOUT)
1573
1574 static void handle_POSTFIELDS(Connection *conn, value option)
1575 {
1576     CAMLparam1(option);
1577     CURLcode result = CURLE_OK;
1578
1579     Store_field(conn->ocamlValues, Ocaml_POSTFIELDS, option);
1580
1581     if (conn->curl_POSTFIELDS != NULL)
1582         free(conn->curl_POSTFIELDS);
1583
1584     conn->curl_POSTFIELDS = strdup_ml(option);
1585
1586     result = curl_easy_setopt(conn->connection,
1587                               CURLOPT_POSTFIELDS,
1588                               conn->curl_POSTFIELDS);
1589
1590     if (result != CURLE_OK)
1591         raiseError(conn, result);
1592
1593     CAMLreturn0;
1594 }
1595
1596 SETOPT_LONG( POSTFIELDSIZE)
1597 SETOPT_STRING( REFERER)
1598 SETOPT_STRING( USERAGENT)
1599 SETOPT_STRING( FTPPORT)
1600 SETOPT_LONG( LOW_SPEED_LIMIT)
1601 SETOPT_LONG( LOW_SPEED_TIME)
1602 SETOPT_LONG( RESUME_FROM)
1603 SETOPT_STRING( COOKIE)
1604
1605 SETOPT_SLIST( HTTPHEADER)
1606
1607 static void handle_HTTPPOST(Connection *conn, value option)
1608 {
1609     CAMLparam1(option);
1610     CAMLlocal3(listIter, formItem, contentType);
1611     CURLcode result = CURLE_OK;
1612
1613     listIter = option;
1614
1615     Store_field(conn->ocamlValues, Ocaml_HTTPPOST, option);
1616
1617     free_curl_slist(conn->httpPostBuffers);
1618     if (conn->httpPostFirst != NULL)
1619         curl_formfree(conn->httpPostFirst);
1620
1621     conn->httpPostBuffers = NULL;
1622     conn->httpPostFirst = NULL;
1623     conn->httpPostLast = NULL;
1624
1625     while (!Is_long(listIter))
1626     {
1627         formItem = Field(listIter, 0);
1628
1629         switch (Tag_val(formItem))
1630         {
1631         case 0: /* CURLFORM_CONTENT */
1632             if (Wosize_val(formItem) < 3)
1633             {
1634                 caml_failwith("Incorrect CURLFORM_CONTENT parameters");
1635             }
1636
1637             if (Is_long(Field(formItem, 2)) &&
1638                 Long_val(Field(formItem, 2)) == 0)
1639             {
1640                 curl_formadd(&conn->httpPostFirst,
1641                              &conn->httpPostLast,
1642                              CURLFORM_COPYNAME,
1643                              String_val(Field(formItem, 0)),
1644                              CURLFORM_NAMELENGTH,
1645                              caml_string_length(Field(formItem, 0)),
1646                              CURLFORM_COPYCONTENTS,
1647                              String_val(Field(formItem, 1)),
1648                              CURLFORM_CONTENTSLENGTH,
1649                              caml_string_length(Field(formItem, 1)),
1650                              CURLFORM_END);
1651             }
1652             else if (Is_block(Field(formItem, 2)))
1653             {
1654                 contentType = Field(formItem, 2);
1655
1656                 curl_formadd(&conn->httpPostFirst,
1657                              &conn->httpPostLast,
1658                              CURLFORM_COPYNAME,
1659                              String_val(Field(formItem, 0)),
1660                              CURLFORM_NAMELENGTH,
1661                              caml_string_length(Field(formItem, 0)),
1662                              CURLFORM_COPYCONTENTS,
1663                              String_val(Field(formItem, 1)),
1664                              CURLFORM_CONTENTSLENGTH,
1665                              caml_string_length(Field(formItem, 1)),
1666                              CURLFORM_CONTENTTYPE,
1667                              String_val(Field(contentType, 0)),
1668                              CURLFORM_END);
1669             }
1670             else
1671             {
1672                 caml_failwith("Incorrect CURLFORM_CONTENT parameters");
1673             }
1674             break;
1675
1676         case 1: /* CURLFORM_FILECONTENT */
1677             if (Wosize_val(formItem) < 3)
1678             {
1679                 caml_failwith("Incorrect CURLFORM_FILECONTENT parameters");
1680             }
1681
1682             if (Is_long(Field(formItem, 2)) &&
1683                 Long_val(Field(formItem, 2)) == 0)
1684             {
1685                 curl_formadd(&conn->httpPostFirst,
1686                              &conn->httpPostLast,
1687                              CURLFORM_COPYNAME,
1688                              String_val(Field(formItem, 0)),
1689                              CURLFORM_NAMELENGTH,
1690                              caml_string_length(Field(formItem, 0)),
1691                              CURLFORM_FILECONTENT,
1692                              String_val(Field(formItem, 1)),
1693                              CURLFORM_END);
1694             }
1695             else if (Is_block(Field(formItem, 2)))
1696             {
1697                 contentType = Field(formItem, 2);
1698
1699                 curl_formadd(&conn->httpPostFirst,
1700                              &conn->httpPostLast,
1701                              CURLFORM_COPYNAME,
1702                              String_val(Field(formItem, 0)),
1703                              CURLFORM_NAMELENGTH,
1704                              caml_string_length(Field(formItem, 0)),
1705                              CURLFORM_FILECONTENT,
1706                              String_val(Field(formItem, 1)),
1707                              CURLFORM_CONTENTTYPE,
1708                              String_val(Field(contentType, 0)),
1709                              CURLFORM_END);
1710             }
1711             else
1712             {
1713                 caml_failwith("Incorrect CURLFORM_FILECONTENT parameters");
1714             }
1715             break;
1716
1717         case 2: /* CURLFORM_FILE */
1718             if (Wosize_val(formItem) < 3)
1719             {
1720                 caml_failwith("Incorrect CURLFORM_FILE parameters");
1721             }
1722
1723             if (Is_long(Field(formItem, 2)) &&
1724                 Long_val(Field(formItem, 2)) == 0)
1725             {
1726                 curl_formadd(&conn->httpPostFirst,
1727                              &conn->httpPostLast,
1728                              CURLFORM_COPYNAME,
1729                              String_val(Field(formItem, 0)),
1730                              CURLFORM_NAMELENGTH,
1731                              caml_string_length(Field(formItem, 0)),
1732                              CURLFORM_FILE,
1733                              String_val(Field(formItem, 1)),
1734                              CURLFORM_END);
1735             }
1736             else if (Is_block(Field(formItem, 2)))
1737             {
1738                 contentType = Field(formItem, 2);
1739
1740                 curl_formadd(&conn->httpPostFirst,
1741                              &conn->httpPostLast,
1742                              CURLFORM_COPYNAME,
1743                              String_val(Field(formItem, 0)),
1744                              CURLFORM_NAMELENGTH,
1745                              caml_string_length(Field(formItem, 0)),
1746                              CURLFORM_FILE,
1747                              String_val(Field(formItem, 1)),
1748                              CURLFORM_CONTENTTYPE,
1749                              String_val(Field(contentType, 0)),
1750                              CURLFORM_END);
1751             }
1752             else
1753             {
1754                 caml_failwith("Incorrect CURLFORM_FILE parameters");
1755             }
1756             break;
1757
1758         case 3: /* CURLFORM_BUFFER */
1759             if (Wosize_val(formItem) < 4)
1760             {
1761                 caml_failwith("Incorrect CURLFORM_BUFFER parameters");
1762             }
1763
1764             if (Is_long(Field(formItem, 3)) &&
1765                 Long_val(Field(formItem, 3)) == 0)
1766             {
1767                 conn->httpPostBuffers = curl_slist_prepend_ml(conn->httpPostBuffers, Field(formItem, 2));
1768
1769                 curl_formadd(&conn->httpPostFirst,
1770                              &conn->httpPostLast,
1771                              CURLFORM_COPYNAME,
1772                              String_val(Field(formItem, 0)),
1773                              CURLFORM_NAMELENGTH,
1774                              caml_string_length(Field(formItem, 0)),
1775                              CURLFORM_BUFFER,
1776                              String_val(Field(formItem, 1)),
1777                              CURLFORM_BUFFERPTR,
1778                              conn->httpPostBuffers->data,
1779                              CURLFORM_BUFFERLENGTH,
1780                              caml_string_length(Field(formItem, 2)),
1781                              CURLFORM_END);
1782             }
1783             else if (Is_block(Field(formItem, 3)))
1784             {
1785                 conn->httpPostBuffers = curl_slist_prepend_ml(conn->httpPostBuffers, Field(formItem, 2));
1786
1787                 contentType = Field(formItem, 3);
1788
1789                 curl_formadd(&conn->httpPostFirst,
1790                              &conn->httpPostLast,
1791                              CURLFORM_COPYNAME,
1792                              String_val(Field(formItem, 0)),
1793                              CURLFORM_NAMELENGTH,
1794                              caml_string_length(Field(formItem, 0)),
1795                              CURLFORM_BUFFER,
1796                              String_val(Field(formItem, 1)),
1797                              CURLFORM_BUFFERPTR,
1798                              conn->httpPostBuffers->data,
1799                              CURLFORM_BUFFERLENGTH,
1800                              caml_string_length(Field(formItem, 2)),
1801                              CURLFORM_CONTENTTYPE,
1802                              String_val(Field(contentType, 0)),
1803                              CURLFORM_END);
1804             }
1805             else
1806             {
1807                 caml_failwith("Incorrect CURLFORM_BUFFER parameters");
1808             }
1809             break;
1810         }
1811
1812         listIter = Field(listIter, 1);
1813     }
1814
1815     result = curl_easy_setopt(conn->connection,
1816                               CURLOPT_HTTPPOST,
1817                               conn->httpPostFirst);
1818
1819     if (result != CURLE_OK)
1820         raiseError(conn, result);
1821
1822     CAMLreturn0;
1823 }
1824
1825 SETOPT_STRING( SSLCERT)
1826 SETOPT_STRING( SSLCERTTYPE)
1827 SETOPT_STRING( SSLCERTPASSWD)
1828 SETOPT_STRING( SSLKEY)
1829 SETOPT_STRING( SSLKEYTYPE)
1830 SETOPT_STRING( SSLKEYPASSWD)
1831 SETOPT_STRING( SSLENGINE)
1832 SETOPT_BOOL( SSLENGINE_DEFAULT)
1833 SETOPT_BOOL( CRLF)
1834
1835 SETOPT_SLIST( QUOTE)
1836 SETOPT_SLIST( POSTQUOTE)
1837
1838 SETOPT_STRING( COOKIEFILE)
1839 #if HAVE_DECL_CURLOPT_CERTINFO
1840 SETOPT_BOOL( CERTINFO)
1841 #endif
1842
1843 #if !defined(CURL_SSLVERSION_TLSv1_0)
1844 #define CURL_SSLVERSION_TLSv1_0 CURL_SSLVERSION_TLSv1
1845 #endif
1846
1847 #if !defined(CURL_SSLVERSION_TLSv1_1)
1848 #define CURL_SSLVERSION_TLSv1_1 CURL_SSLVERSION_TLSv1
1849 #endif
1850
1851 #if !defined(CURL_SSLVERSION_TLSv1_2)
1852 #define CURL_SSLVERSION_TLSv1_2 CURL_SSLVERSION_TLSv1
1853 #endif
1854
1855 static void handle_SSLVERSION(Connection *conn, value option)
1856 {
1857     CAMLparam1(option);
1858     CURLcode result = CURLE_OK;
1859     int v = CURL_SSLVERSION_DEFAULT;
1860
1861     switch (Long_val(option))
1862     {
1863     case 0: v = CURL_SSLVERSION_DEFAULT; break;
1864     case 1: v = CURL_SSLVERSION_TLSv1; break;
1865     case 2: v = CURL_SSLVERSION_SSLv2; break;
1866     case 3: v = CURL_SSLVERSION_SSLv3; break;
1867     case 4: v = CURL_SSLVERSION_TLSv1_0; break;
1868     case 5: v = CURL_SSLVERSION_TLSv1_1; break;
1869     case 6: v = CURL_SSLVERSION_TLSv1_2; break;
1870     default:
1871         caml_failwith("Invalid SSLVERSION Option");
1872         break;
1873     }
1874
1875     result = curl_easy_setopt(conn->connection, CURLOPT_SSLVERSION, v);
1876
1877     if (result != CURLE_OK)
1878         raiseError(conn, result);
1879
1880     CAMLreturn0;
1881 }
1882
1883 static void handle_TIMECONDITION(Connection *conn, value option)
1884 {
1885     CAMLparam1(option);
1886     CURLcode result = CURLE_OK;
1887     int timecond = CURL_TIMECOND_NONE;
1888
1889     switch (Long_val(option))
1890     {
1891     case 0: timecond = CURL_TIMECOND_NONE; break;
1892     case 1: timecond = CURL_TIMECOND_IFMODSINCE; break;
1893     case 2: timecond = CURL_TIMECOND_IFUNMODSINCE; break;
1894     case 3: timecond = CURL_TIMECOND_LASTMOD; break;
1895     default:
1896         caml_failwith("Invalid TIMECOND Option");
1897         break;
1898     }
1899
1900     result = curl_easy_setopt(conn->connection, CURLOPT_TIMECONDITION, timecond);
1901
1902     if (result != CURLE_OK)
1903         raiseError(conn, result);
1904
1905     CAMLreturn0;
1906 }
1907
1908 SETOPT_VAL( TIMEVALUE, Int32_val)
1909 SETOPT_STRING( CUSTOMREQUEST)
1910 SETOPT_STRING( INTERFACE)
1911
1912 static void handle_KRB4LEVEL(Connection *conn, value option)
1913 {
1914     CAMLparam1(option);
1915     CURLcode result = CURLE_OK;
1916
1917     switch (Long_val(option))
1918     {
1919     case 0: /* KRB4_NONE */
1920         result = curl_easy_setopt(conn->connection,
1921                                   CURLOPT_KRB4LEVEL,
1922                                   NULL);
1923         break;
1924
1925     case 1: /* KRB4_CLEAR */
1926         result = curl_easy_setopt(conn->connection,
1927                                   CURLOPT_KRB4LEVEL,
1928                                   "clear");
1929         break;
1930
1931     case 2: /* KRB4_SAFE */
1932         result = curl_easy_setopt(conn->connection,
1933                                   CURLOPT_KRB4LEVEL,
1934                                   "safe");
1935         break;
1936
1937     case 3: /* KRB4_CONFIDENTIAL */
1938         result = curl_easy_setopt(conn->connection,
1939                                   CURLOPT_KRB4LEVEL,
1940                                   "confidential");
1941         break;
1942
1943     case 4: /* KRB4_PRIVATE */
1944         result = curl_easy_setopt(conn->connection,
1945                                   CURLOPT_KRB4LEVEL,
1946                                   "private");
1947         break;
1948
1949     default:
1950         caml_failwith("Invalid KRB4 Option");
1951         break;
1952     }
1953
1954     if (result != CURLE_OK)
1955         raiseError(conn, result);
1956
1957     CAMLreturn0;
1958 }
1959
1960 SETOPT_BOOL( SSL_VERIFYPEER)
1961 SETOPT_STRING( CAINFO)
1962 SETOPT_STRING( CAPATH)
1963 SETOPT_BOOL( FILETIME)
1964 SETOPT_LONG( MAXREDIRS)
1965 SETOPT_LONG( MAXCONNECTS)
1966
1967 static void handle_CLOSEPOLICY(Connection *conn, value option)
1968 {
1969     CAMLparam1(option);
1970     CURLcode result = CURLE_OK;
1971
1972     switch (Long_val(option))
1973     {
1974     case 0: /* CLOSEPOLICY_OLDEST */
1975         result = curl_easy_setopt(conn->connection,
1976                                   CURLOPT_CLOSEPOLICY,
1977                                   CURLCLOSEPOLICY_OLDEST);
1978         break;
1979
1980     case 1: /* CLOSEPOLICY_LEAST_RECENTLY_USED */
1981         result = curl_easy_setopt(conn->connection,
1982                                   CURLOPT_CLOSEPOLICY,
1983                                   CURLCLOSEPOLICY_LEAST_RECENTLY_USED);
1984         break;
1985
1986     default:
1987         caml_failwith("Invalid CLOSEPOLICY Option");
1988         break;
1989     }
1990
1991     if (result != CURLE_OK)
1992         raiseError(conn, result);
1993
1994     CAMLreturn0;
1995 }
1996
1997 SETOPT_BOOL( FRESH_CONNECT)
1998 SETOPT_BOOL( FORBID_REUSE)
1999 SETOPT_STRING( RANDOM_FILE)
2000 SETOPT_STRING( EGDSOCKET)
2001 SETOPT_LONG( CONNECTTIMEOUT)
2002 SETOPT_BOOL( HTTPGET)
2003
2004 static void handle_SSL_VERIFYHOST(Connection *conn, value option)
2005 {
2006     CAMLparam1(option);
2007     CURLcode result = CURLE_OK;
2008
2009     switch (Long_val(option))
2010     {
2011     case 0: /* SSLVERIFYHOST_NONE */
2012     case 1: /* SSLVERIFYHOST_EXISTENCE */
2013     case 2: /* SSLVERIFYHOST_HOSTNAME */
2014         result = curl_easy_setopt(conn->connection,
2015                                   CURLOPT_SSL_VERIFYHOST,
2016                                   /* map EXISTENCE to HOSTNAME */
2017                                   Long_val(option) == 0 ? 0 : 2);
2018         break;
2019
2020     default:
2021         caml_failwith("Invalid SSLVERIFYHOST Option");
2022         break;
2023     }
2024
2025     if (result != CURLE_OK)
2026         raiseError(conn, result);
2027
2028     CAMLreturn0;
2029 }
2030
2031 SETOPT_STRING( COOKIEJAR)
2032 SETOPT_STRING( SSL_CIPHER_LIST)
2033
2034 static void handle_HTTP_VERSION(Connection *conn, value option)
2035 {
2036     CAMLparam1(option);
2037     CURLcode result = CURLE_OK;
2038
2039     long version = CURL_HTTP_VERSION_NONE;
2040
2041     switch (Long_val(option))
2042     {
2043     case 0: version = CURL_HTTP_VERSION_NONE; break;
2044     case 1: version = CURL_HTTP_VERSION_1_0; break;
2045     case 2: version = CURL_HTTP_VERSION_1_1; break;
2046     case 3:
2047 #if defined(CURL_HTTP_VERSION_2)
2048       version = CURL_HTTP_VERSION_2;
2049 #elif defined(CURL_HTTP_VERSION_2_0)
2050       version = CURL_HTTP_VERSION_2_0;
2051 #endif
2052       break;
2053     case 4:
2054 #if defined(CURL_HTTP_VERSION_2TLS)
2055       version = CURL_HTTP_VERSION_2TLS;
2056 #endif
2057       break;
2058     default:
2059       caml_invalid_argument("CURLOPT_HTTP_VERSION");
2060       break;
2061     }
2062
2063     result = curl_easy_setopt(conn->connection, CURLOPT_HTTP_VERSION, version);
2064
2065     if (result != CURLE_OK)
2066         raiseError(conn, result);
2067
2068     CAMLreturn0;
2069 }
2070
2071 SETOPT_BOOL( FTP_USE_EPSV)
2072 SETOPT_LONG( DNS_CACHE_TIMEOUT)
2073 SETOPT_BOOL( DNS_USE_GLOBAL_CACHE)
2074
2075 #if HAVE_DECL_CURLOPT_PRIVATE
2076 SETOPT_STRING( PRIVATE)
2077 #endif
2078
2079 #if HAVE_DECL_CURLOPT_HTTP200ALIASES
2080 SETOPT_SLIST( HTTP200ALIASES)
2081 #endif
2082
2083 #if HAVE_DECL_CURLOPT_UNRESTRICTED_AUTH
2084 SETOPT_BOOL( UNRESTRICTED_AUTH)
2085 #endif
2086
2087 #if HAVE_DECL_CURLOPT_FTP_USE_EPRT
2088 SETOPT_BOOL( FTP_USE_EPRT)
2089 #endif
2090
2091 #if HAVE_DECL_CURLOPT_HTTPAUTH
2092 static void handle_HTTPAUTH(Connection *conn, value option)
2093 {
2094     CAMLparam1(option);
2095     CAMLlocal1(listIter);
2096     CURLcode result = CURLE_OK;
2097     long auth = CURLAUTH_NONE;
2098
2099     listIter = option;
2100
2101     while (!Is_long(listIter))
2102     {
2103         switch (Long_val(Field(listIter, 0)))
2104         {
2105         case 0: /* CURLAUTH_BASIC */
2106             auth |= CURLAUTH_BASIC;
2107             break;
2108
2109         case 1: /* CURLAUTH_DIGEST */
2110             auth |= CURLAUTH_DIGEST;
2111             break;
2112
2113         case 2: /* CURLAUTH_GSSNEGOTIATE */
2114             auth |= CURLAUTH_GSSNEGOTIATE;
2115             break;
2116
2117         case 3: /* CURLAUTH_NTLM */
2118             auth |= CURLAUTH_NTLM;
2119             break;
2120
2121         case 4: /* CURLAUTH_ANY */
2122             auth |= CURLAUTH_ANY;
2123             break;
2124
2125         case 5: /* CURLAUTH_ANYSAFE */
2126             auth |= CURLAUTH_ANYSAFE;
2127             break;
2128
2129         default:
2130             caml_failwith("Invalid HTTPAUTH Value");
2131             break;
2132         }
2133
2134         listIter = Field(listIter, 1);
2135     }
2136
2137     result = curl_easy_setopt(conn->connection,
2138                               CURLOPT_HTTPAUTH,
2139                               auth);
2140
2141     if (result != CURLE_OK)
2142         raiseError(conn, result);
2143
2144     CAMLreturn0;
2145 }
2146 #endif
2147
2148 #if HAVE_DECL_CURLOPT_FTP_CREATE_MISSING_DIRS
2149 SETOPT_BOOL( FTP_CREATE_MISSING_DIRS)
2150 #endif
2151
2152 #if HAVE_DECL_CURLOPT_PROXYAUTH
2153 static void handle_PROXYAUTH(Connection *conn, value option)
2154 {
2155     CAMLparam1(option);
2156     CAMLlocal1(listIter);
2157     CURLcode result = CURLE_OK;
2158     long auth = CURLAUTH_NONE;
2159
2160     listIter = option;
2161
2162     while (!Is_long(listIter))
2163     {
2164         switch (Long_val(Field(listIter, 0)))
2165         {
2166         case 0: /* CURLAUTH_BASIC */
2167             auth |= CURLAUTH_BASIC;
2168             break;
2169
2170         case 1: /* CURLAUTH_DIGEST */
2171             auth |= CURLAUTH_DIGEST;
2172             break;
2173
2174         case 2: /* CURLAUTH_GSSNEGOTIATE */
2175             auth |= CURLAUTH_GSSNEGOTIATE;
2176             break;
2177
2178         case 3: /* CURLAUTH_NTLM */
2179             auth |= CURLAUTH_NTLM;
2180             break;
2181
2182         case 4: /* CURLAUTH_ANY */
2183             auth |= CURLAUTH_ANY;
2184             break;
2185
2186         case 5: /* CURLAUTH_ANYSAFE */
2187             auth |= CURLAUTH_ANYSAFE;
2188             break;
2189
2190         default:
2191             caml_failwith("Invalid HTTPAUTH Value");
2192             break;
2193         }
2194
2195         listIter = Field(listIter, 1);
2196     }
2197
2198     result = curl_easy_setopt(conn->connection,
2199                               CURLOPT_PROXYAUTH,
2200                               auth);
2201
2202     if (result != CURLE_OK)
2203         raiseError(conn, result);
2204
2205     CAMLreturn0;
2206 }
2207 #endif
2208
2209 #if HAVE_DECL_CURLOPT_FTP_RESPONSE_TIMEOUT
2210 SETOPT_LONG( FTP_RESPONSE_TIMEOUT)
2211 #endif
2212
2213 #if HAVE_DECL_CURLOPT_IPRESOLVE
2214 static void handle_IPRESOLVE(Connection *conn, value option)
2215 {
2216     CAMLparam1(option);
2217     CURLcode result = CURLE_OK;
2218
2219     switch (Long_val(option))
2220     {
2221     case 0: /* CURL_IPRESOLVE_WHATEVER */
2222         result = curl_easy_setopt(conn->connection,
2223                                   CURLOPT_IPRESOLVE,
2224                                   CURL_IPRESOLVE_WHATEVER);
2225         break;
2226
2227     case 1: /* CURL_IPRESOLVE_V4 */
2228         result = curl_easy_setopt(conn->connection,
2229                                   CURLOPT_IPRESOLVE,
2230                                   CURL_IPRESOLVE_V4);
2231         break;
2232
2233     case 2: /* CURL_IPRESOLVE_V6 */
2234         result = curl_easy_setopt(conn->connection,
2235                                   CURLOPT_IPRESOLVE,
2236                                   CURL_IPRESOLVE_V6);
2237         break;
2238
2239     default:
2240         caml_failwith("Invalid IPRESOLVE Value");
2241         break;
2242     }
2243
2244     if (result != CURLE_OK)
2245         raiseError(conn, result);
2246
2247     CAMLreturn0;
2248 }
2249 #endif
2250
2251 #if HAVE_DECL_CURLOPT_MAXFILESIZE
2252 SETOPT_VAL( MAXFILESIZE, Int32_val)
2253 #endif
2254
2255 #if HAVE_DECL_CURLOPT_INFILESIZE_LARGE
2256 SETOPT_INT64( INFILESIZE_LARGE)
2257 #endif
2258
2259 #if HAVE_DECL_CURLOPT_RESUME_FROM_LARGE
2260 SETOPT_INT64( RESUME_FROM_LARGE)
2261 #endif
2262
2263 #if HAVE_DECL_CURLOPT_MAXFILESIZE_LARGE
2264 SETOPT_INT64( MAXFILESIZE_LARGE)
2265 #endif
2266
2267 #if HAVE_DECL_CURLOPT_NETRC_FILE
2268 SETOPT_STRING( NETRC_FILE)
2269 #endif
2270
2271 #if HAVE_DECL_CURLOPT_FTP_SSL
2272 static void handle_FTP_SSL(Connection *conn, value option)
2273 {
2274     CAMLparam1(option);
2275     CURLcode result = CURLE_OK;
2276
2277     switch (Long_val(option))
2278     {
2279     case 0: /* CURLFTPSSL_NONE */
2280         result = curl_easy_setopt(conn->connection,
2281                                   CURLOPT_FTP_SSL,
2282                                   CURLFTPSSL_NONE);
2283         break;
2284
2285     case 1: /* CURLFTPSSL_TRY */
2286         result = curl_easy_setopt(conn->connection,
2287                                   CURLOPT_FTP_SSL,
2288                                   CURLFTPSSL_TRY);
2289         break;
2290
2291     case 2: /* CURLFTPSSL_CONTROL */
2292         result = curl_easy_setopt(conn->connection,
2293                                   CURLOPT_FTP_SSL,
2294                                   CURLFTPSSL_CONTROL);
2295         break;
2296
2297     case 3: /* CURLFTPSSL_ALL */
2298         result = curl_easy_setopt(conn->connection,
2299                                   CURLOPT_FTP_SSL,
2300                                   CURLFTPSSL_ALL);
2301         break;
2302
2303     default:
2304         caml_failwith("Invalid FTP_SSL Value");
2305         break;
2306     }
2307
2308     if (result != CURLE_OK)
2309         raiseError(conn, result);
2310
2311     CAMLreturn0;
2312 }
2313 #endif
2314
2315 #if HAVE_DECL_CURLOPT_POSTFIELDSIZE_LARGE
2316 SETOPT_INT64( POSTFIELDSIZE_LARGE)
2317 #endif
2318
2319 #if HAVE_DECL_CURLOPT_TCP_NODELAY
2320 /* not using SETOPT_BOOL here because of TCP_NODELAY defined in winsock.h */
2321 SETOPT_VAL_( handle_TCP_NODELAY, CURLOPT_TCP_NODELAY, Bool_val)
2322 #endif
2323
2324 #if HAVE_DECL_CURLOPT_FTPSSLAUTH
2325 static void handle_FTPSSLAUTH(Connection *conn, value option)
2326 {
2327     CAMLparam1(option);
2328     CURLcode result = CURLE_OK;
2329
2330     switch (Long_val(option))
2331     {
2332     case 0: /* CURLFTPAUTH_DEFAULT */
2333         result = curl_easy_setopt(conn->connection,
2334                                   CURLOPT_FTPSSLAUTH,
2335                                   CURLFTPAUTH_DEFAULT);
2336         break;
2337
2338     case 1: /* CURLFTPAUTH_SSL */
2339         result = curl_easy_setopt(conn->connection,
2340                                   CURLOPT_FTPSSLAUTH,
2341                                   CURLFTPAUTH_SSL);
2342         break;
2343
2344     case 2: /* CURLFTPAUTH_TLS */
2345         result = curl_easy_setopt(conn->connection,
2346                                   CURLOPT_FTPSSLAUTH,
2347                                   CURLFTPAUTH_TLS);
2348         break;
2349
2350     default:
2351         caml_failwith("Invalid FTPSSLAUTH value");
2352         break;
2353     }
2354
2355     if (result != CURLE_OK)
2356         raiseError(conn, result);
2357
2358     CAMLreturn0;
2359 }
2360 #endif
2361
2362 #if HAVE_DECL_CURLOPT_FTP_ACCOUNT
2363 SETOPT_STRING( FTP_ACCOUNT)
2364 #endif
2365
2366 #if HAVE_DECL_CURLOPT_COOKIELIST
2367 SETOPT_STRING( COOKIELIST)
2368 #endif
2369
2370 #if HAVE_DECL_CURLOPT_IGNORE_CONTENT_LENGTH
2371 SETOPT_BOOL( IGNORE_CONTENT_LENGTH)
2372 #endif
2373
2374 #if HAVE_DECL_CURLOPT_FTP_SKIP_PASV_IP
2375 SETOPT_BOOL( FTP_SKIP_PASV_IP)
2376 #endif
2377
2378 #if HAVE_DECL_CURLOPT_FTP_FILEMETHOD
2379 static void handle_FTP_FILEMETHOD(Connection *conn, value option)
2380 {
2381     CAMLparam1(option);
2382     CURLcode result = CURLE_OK;
2383
2384     switch (Long_val(option))
2385     {
2386     case 0: /* CURLFTPMETHOD_DEFAULT */
2387         result = curl_easy_setopt(conn->connection,
2388                                   CURLOPT_FTP_FILEMETHOD,
2389                                   CURLFTPMETHOD_DEFAULT);
2390         break;
2391
2392     case 1: /* CURLFTMETHOD_MULTICWD */
2393         result = curl_easy_setopt(conn->connection,
2394                                   CURLOPT_FTP_FILEMETHOD,
2395                                   CURLFTPMETHOD_MULTICWD);
2396         break;
2397
2398     case 2: /* CURLFTPMETHOD_NOCWD */
2399         result = curl_easy_setopt(conn->connection,
2400                                   CURLOPT_FTP_FILEMETHOD,
2401                                   CURLFTPMETHOD_NOCWD);
2402         break;
2403
2404     case 3: /* CURLFTPMETHOD_SINGLECWD */
2405         result = curl_easy_setopt(conn->connection,
2406                                   CURLOPT_FTP_FILEMETHOD,
2407                                   CURLFTPMETHOD_SINGLECWD);
2408
2409     default:
2410         caml_failwith("Invalid FTP_FILEMETHOD value");
2411         break;
2412     }
2413
2414     if (result != CURLE_OK)
2415         raiseError(conn, result);
2416
2417     CAMLreturn0;
2418 }
2419 #endif
2420
2421 #if HAVE_DECL_CURLOPT_LOCALPORT
2422 SETOPT_LONG( LOCALPORT)
2423 #endif
2424
2425 #if HAVE_DECL_CURLOPT_LOCALPORTRANGE
2426 SETOPT_LONG( LOCALPORTRANGE)
2427 #endif
2428
2429 #if HAVE_DECL_CURLOPT_CONNECT_ONLY
2430 SETOPT_BOOL( CONNECT_ONLY)
2431 #endif
2432
2433 #if HAVE_DECL_CURLOPT_MAX_SEND_SPEED_LARGE
2434 SETOPT_INT64( MAX_SEND_SPEED_LARGE)
2435 #endif
2436
2437 #if HAVE_DECL_CURLOPT_MAX_RECV_SPEED_LARGE
2438 SETOPT_INT64( MAX_RECV_SPEED_LARGE)
2439 #endif
2440
2441 #if HAVE_DECL_CURLOPT_FTP_ALTERNATIVE_TO_USER
2442 SETOPT_STRING( FTP_ALTERNATIVE_TO_USER)
2443 #endif
2444
2445 #if HAVE_DECL_CURLOPT_SSL_SESSIONID_CACHE
2446 SETOPT_BOOL( SSL_SESSIONID_CACHE)
2447 #endif
2448
2449 #if HAVE_DECL_CURLOPT_SSH_AUTH_TYPES
2450 static void handle_SSH_AUTH_TYPES(Connection *conn, value option)
2451 {
2452     CAMLparam1(option);
2453     CAMLlocal1(listIter);
2454     CURLcode result = CURLE_OK;
2455     long authTypes = CURLSSH_AUTH_NONE;
2456
2457     listIter = option;
2458
2459     while (!Is_long(listIter))
2460     {
2461         switch (Long_val(Field(listIter, 0)))
2462         {
2463         case 0: /* CURLSSH_AUTH_ANY */
2464             authTypes |= CURLSSH_AUTH_ANY;
2465             break;
2466
2467         case 1: /* CURLSSH_AUTH_PUBLICKEY */
2468             authTypes |= CURLSSH_AUTH_PUBLICKEY;
2469             break;
2470
2471         case 2: /* CURLSSH_AUTH_PASSWORD */
2472             authTypes |= CURLSSH_AUTH_PASSWORD;
2473             break;
2474
2475         case 3: /* CURLSSH_AUTH_HOST */
2476             authTypes |= CURLSSH_AUTH_HOST;
2477             break;
2478
2479         case 4: /* CURLSSH_AUTH_KEYBOARD */
2480             authTypes |= CURLSSH_AUTH_KEYBOARD;
2481             break;
2482
2483         default:
2484             caml_failwith("Invalid CURLSSH_AUTH_TYPES Value");
2485             break;
2486         }
2487
2488         listIter = Field(listIter, 1);
2489     }
2490
2491     result = curl_easy_setopt(conn->connection,
2492                               CURLOPT_SSH_AUTH_TYPES,
2493                               authTypes);
2494
2495     if (result != CURLE_OK)
2496         raiseError(conn, result);
2497
2498     CAMLreturn0;
2499 }
2500 #endif
2501
2502 #if HAVE_DECL_CURLOPT_SSH_PUBLIC_KEYFILE
2503 SETOPT_STRING( SSH_PUBLIC_KEYFILE)
2504 #endif
2505
2506 #if HAVE_DECL_CURLOPT_SSH_PRIVATE_KEYFILE
2507 SETOPT_STRING( SSH_PRIVATE_KEYFILE)
2508 #endif
2509
2510 #if HAVE_DECL_CURLOPT_FTP_SSL_CCC
2511 static void handle_FTP_SSL_CCC(Connection *conn, value option)
2512 {
2513     CAMLparam1(option);
2514     CURLcode result = CURLE_OK;
2515
2516     switch (Long_val(option))
2517     {
2518     case 0: /* CURLFTPSSL_CCC_NONE */
2519         result = curl_easy_setopt(conn->connection,
2520                                   CURLOPT_FTP_SSL_CCC,
2521                                   CURLFTPSSL_CCC_NONE);
2522         break;
2523
2524     case 1: /* CURLFTPSSL_CCC_PASSIVE */
2525         result = curl_easy_setopt(conn->connection,
2526                                   CURLOPT_FTP_SSL_CCC,
2527                                   CURLFTPSSL_CCC_PASSIVE);
2528         break;
2529
2530     case 2: /* CURLFTPSSL_CCC_ACTIVE */
2531         result = curl_easy_setopt(conn->connection,
2532                                   CURLOPT_FTP_SSL_CCC,
2533                                   CURLFTPSSL_CCC_ACTIVE);
2534         break;
2535
2536     default:
2537         caml_failwith("Invalid FTPSSL_CCC value");
2538         break;
2539     }
2540
2541     if (result != CURLE_OK)
2542         raiseError(conn, result);
2543
2544     CAMLreturn0;
2545 }
2546 #endif
2547
2548 #if HAVE_DECL_CURLOPT_TIMEOUT_MS
2549 SETOPT_LONG( TIMEOUT_MS)
2550 #endif
2551
2552 #if HAVE_DECL_CURLOPT_CONNECTTIMEOUT_MS
2553 SETOPT_LONG( CONNECTTIMEOUT_MS)
2554 #endif
2555
2556 #if HAVE_DECL_CURLOPT_HTTP_TRANSFER_DECODING
2557 SETOPT_BOOL( HTTP_TRANSFER_DECODING)
2558 #endif
2559
2560 #if HAVE_DECL_CURLOPT_HTTP_CONTENT_DECODING
2561 SETOPT_BOOL( HTTP_CONTENT_DECODING)
2562 #endif
2563
2564 #if HAVE_DECL_CURLOPT_NEW_FILE_PERMS
2565 SETOPT_LONG( NEW_FILE_PERMS)
2566 #endif
2567
2568 #if HAVE_DECL_CURLOPT_NEW_DIRECTORY_PERMS
2569 SETOPT_LONG( NEW_DIRECTORY_PERMS)
2570 #endif
2571
2572 #if HAVE_DECL_CURLOPT_POST301
2573 SETOPT_BOOL( POST301)
2574 #endif
2575
2576 #if HAVE_DECL_CURLOPT_SSH_HOST_PUBLIC_KEY_MD5
2577 SETOPT_STRING( SSH_HOST_PUBLIC_KEY_MD5)
2578 #endif
2579
2580 #if HAVE_DECL_CURLOPT_COPYPOSTFIELDS
2581 SETOPT_STRING( COPYPOSTFIELDS)
2582 #endif
2583
2584 #if HAVE_DECL_CURLOPT_PROXY_TRANSFER_MODE
2585 SETOPT_BOOL( PROXY_TRANSFER_MODE)
2586 #endif
2587
2588 #if HAVE_DECL_CURLOPT_AUTOREFERER
2589 SETOPT_BOOL( AUTOREFERER)
2590 #endif
2591
2592 #if HAVE_DECL_CURLOPT_PROXYTYPE
2593 static void handle_PROXYTYPE(Connection *conn, value option)
2594 {
2595     CAMLparam1(option);
2596     CURLcode result = CURLE_OK;
2597     long proxy_type;
2598
2599     switch (Long_val(option))
2600     {
2601       case 0: proxy_type = CURLPROXY_HTTP; break;
2602       case 1: proxy_type = CURLPROXY_HTTP_1_0; break;
2603       case 2: proxy_type = CURLPROXY_SOCKS4; break;
2604       case 3: proxy_type = CURLPROXY_SOCKS5; break;
2605       case 4: proxy_type = CURLPROXY_SOCKS4A; break;
2606       case 5: proxy_type = CURLPROXY_SOCKS5_HOSTNAME; break;
2607       default:
2608         caml_failwith("Invalid curl proxy type");
2609     }
2610
2611     result = curl_easy_setopt(conn->connection,
2612                               CURLOPT_PROXYTYPE,
2613                               proxy_type);
2614
2615     if (result != CURLE_OK)
2616         raiseError(conn, result);
2617
2618     CAMLreturn0;
2619 }
2620 #endif
2621
2622 #if HAVE_DECL_CURLOPT_PROTOCOLS || HAVE_DECL_CURLOPT_REDIR_PROTOCOLS
2623
2624 long protoMap[] =
2625 {
2626   CURLPROTO_ALL,
2627   CURLPROTO_HTTP, CURLPROTO_HTTPS, CURLPROTO_FTP, CURLPROTO_FTPS, CURLPROTO_SCP, CURLPROTO_SFTP,
2628   CURLPROTO_TELNET, CURLPROTO_LDAP, CURLPROTO_LDAPS, CURLPROTO_DICT, CURLPROTO_FILE, CURLPROTO_TFTP,
2629 /* factor out with autoconf? */
2630 #if defined(CURLPROTO_IMAP)
2631   CURLPROTO_IMAP,
2632 #else
2633   0,
2634 #endif
2635 #if defined(CURLPROTO_IMAPS)
2636   CURLPROTO_IMAPS,
2637 #else
2638   0,
2639 #endif
2640 #if defined(CURLPROTO_POP3)
2641   CURLPROTO_POP3,
2642 #else
2643   0,
2644 #endif
2645 #if defined(CURLPROTO_POP3S)
2646   CURLPROTO_POP3S,
2647 #else
2648   0,
2649 #endif
2650 #if defined(CURLPROTO_SMTP)
2651   CURLPROTO_SMTP,
2652 #else
2653   0,
2654 #endif
2655 #if defined(CURLPROTO_SMTPS)
2656   CURLPROTO_SMTPS,
2657 #else
2658   0,
2659 #endif
2660 #if defined(CURLPROTO_RTSP)
2661   CURLPROTO_RTSP,
2662 #else
2663   0,
2664 #endif
2665 #if defined(CURLPROTO_RTMP)
2666   CURLPROTO_RTMP,
2667 #else
2668   0,
2669 #endif
2670 #if defined(CURLPROTO_RTMPT)
2671   CURLPROTO_RTMPT,
2672 #else
2673   0,
2674 #endif
2675 #if defined(CURLPROTO_RTMPE)
2676   CURLPROTO_RTMPE,
2677 #else
2678   0,
2679 #endif
2680 #if defined(CURLPROTO_RTMPTE)
2681   CURLPROTO_RTMPTE,
2682 #else
2683   0,
2684 #endif
2685 #if defined(CURLPROTO_RTMPS)
2686   CURLPROTO_RTMPS,
2687 #else
2688   0,
2689 #endif
2690 #if defined(CURLPROTO_RTMPTS)
2691   CURLPROTO_RTMPTS,
2692 #else
2693   0,
2694 #endif
2695 #if defined(CURLPROTO_GOPHER)
2696   CURLPROTO_GOPHER,
2697 #else
2698   0,
2699 #endif
2700 };
2701
2702 static void handle_PROTOCOLSOPTION(CURLoption curlopt, Connection *conn, value option)
2703 {
2704     CAMLparam1(option);
2705     CURLcode result = CURLE_OK;
2706     long bits = convert_bit_list(protoMap, sizeof(protoMap) / sizeof(protoMap[0]), option);
2707
2708     result = curl_easy_setopt(conn->connection, curlopt, bits);
2709
2710     if (result != CURLE_OK)
2711         raiseError(conn, result);
2712
2713     CAMLreturn0;
2714 }
2715 #endif
2716
2717 #if HAVE_DECL_CURLOPT_PROTOCOLS
2718 static void handle_PROTOCOLS(Connection *conn, value option)
2719 {
2720   handle_PROTOCOLSOPTION(CURLOPT_PROTOCOLS, conn, option);
2721 }
2722 #endif
2723
2724 #if HAVE_DECL_CURLOPT_REDIR_PROTOCOLS
2725 static void handle_REDIR_PROTOCOLS(Connection *conn, value option)
2726 {
2727   handle_PROTOCOLSOPTION(CURLOPT_REDIR_PROTOCOLS, conn, option);
2728 }
2729 #endif
2730
2731 #if HAVE_DECL_CURLOPT_RESOLVE
2732 SETOPT_SLIST( RESOLVE)
2733 #endif
2734
2735 #if HAVE_DECL_CURLOPT_DNS_SERVERS
2736 SETOPT_STRING( DNS_SERVERS)
2737 #endif
2738
2739 #if HAVE_DECL_CURLOPT_MAIL_FROM
2740 SETOPT_STRING( MAIL_FROM)
2741 #endif
2742
2743 #if HAVE_DECL_CURLOPT_MAIL_RCPT
2744 SETOPT_SLIST( MAIL_RCPT)
2745 #endif
2746
2747 #if HAVE_DECL_CURLOPT_PIPEWAIT
2748 SETOPT_BOOL( PIPEWAIT)
2749 #endif
2750
2751 /**
2752  **  curl_easy_setopt helper function
2753  **/
2754
2755 #define MAP(name) { handle_ ## name, "CURLOPT_"#name, Ocaml_##name }
2756 #define MAP_NO(name) { NULL, "CURLOPT_"#name , Ocaml_##name }
2757 #define IMM(name) { handle_ ## name, "CURLOPT_"#name, -1 }
2758 #define IMM_NO(name) { NULL, "CURLOPT_"#name , -1 }
2759
2760 CURLOptionMapping implementedOptionMap[] =
2761 {
2762   MAP(WRITEFUNCTION),
2763   MAP(READFUNCTION),
2764   IMM(INFILESIZE),
2765   MAP(URL),
2766   MAP(PROXY),
2767   IMM(PROXYPORT),
2768   IMM(HTTPPROXYTUNNEL),
2769   IMM(VERBOSE),
2770   IMM(HEADER),
2771   IMM(NOPROGRESS),
2772 #if HAVE_DECL_CURLOPT_NOSIGNAL
2773   IMM(NOSIGNAL),
2774 #else
2775   IMM_NO(NOSIGNAL),
2776 #endif
2777   IMM(NOBODY),
2778   IMM(FAILONERROR),
2779   IMM(UPLOAD),
2780   IMM(POST),
2781   IMM(FTPLISTONLY),
2782   IMM(FTPAPPEND),
2783   IMM(NETRC),
2784 #if HAVE_DECL_CURLOPT_ENCODING
2785   IMM(ENCODING),
2786 #else
2787   IMM_NO(ENCODING),
2788 #endif
2789   IMM(FOLLOWLOCATION),
2790   IMM(TRANSFERTEXT),
2791   IMM(PUT),
2792   MAP(USERPWD),
2793   MAP(PROXYUSERPWD),
2794   MAP(RANGE),
2795   IMM(ERRORBUFFER), /* mutable buffer, as output value, do not duplicate */
2796   IMM(TIMEOUT),
2797   MAP(POSTFIELDS),
2798   IMM(POSTFIELDSIZE),
2799   MAP(REFERER),
2800   MAP(USERAGENT),
2801   MAP(FTPPORT),
2802   IMM(LOW_SPEED_LIMIT),
2803   IMM(LOW_SPEED_TIME),
2804   IMM(RESUME_FROM),
2805   MAP(COOKIE),
2806   MAP(HTTPHEADER),
2807   MAP(HTTPPOST),
2808   MAP(SSLCERT),
2809   MAP(SSLCERTTYPE),
2810   MAP(SSLCERTPASSWD),
2811   MAP(SSLKEY),
2812   MAP(SSLKEYTYPE),
2813   MAP(SSLKEYPASSWD),
2814   MAP(SSLENGINE),
2815   IMM(SSLENGINE_DEFAULT),
2816   IMM(CRLF),
2817   MAP(QUOTE),
2818   MAP(POSTQUOTE),
2819   MAP(HEADERFUNCTION),
2820   MAP(COOKIEFILE),
2821   IMM(SSLVERSION),
2822   IMM(TIMECONDITION),
2823   IMM(TIMEVALUE),
2824   MAP(CUSTOMREQUEST),
2825   MAP(INTERFACE),
2826   IMM(KRB4LEVEL),
2827   MAP(PROGRESSFUNCTION),
2828   IMM(SSL_VERIFYPEER),
2829   MAP(CAINFO),
2830   MAP(CAPATH),
2831   IMM(FILETIME),
2832   IMM(MAXREDIRS),
2833   IMM(MAXCONNECTS),
2834   IMM(CLOSEPOLICY),
2835   IMM(FRESH_CONNECT),
2836   IMM(FORBID_REUSE),
2837   MAP(RANDOM_FILE),
2838   MAP(EGDSOCKET),
2839   IMM(CONNECTTIMEOUT),
2840   IMM(HTTPGET),
2841   IMM(SSL_VERIFYHOST),
2842   MAP(COOKIEJAR),
2843   MAP(SSL_CIPHER_LIST),
2844   IMM(HTTP_VERSION),
2845   IMM(FTP_USE_EPSV),
2846   IMM(DNS_CACHE_TIMEOUT),
2847   IMM(DNS_USE_GLOBAL_CACHE),
2848   MAP(DEBUGFUNCTION),
2849 #if HAVE_DECL_CURLOPT_PRIVATE
2850   MAP(PRIVATE),
2851 #else
2852   MAP_NO(PRIVATE),
2853 #endif
2854 #if HAVE_DECL_CURLOPT_HTTP200ALIASES
2855   MAP(HTTP200ALIASES),
2856 #else
2857   MAP_NO(HTTP200ALIASES),
2858 #endif
2859 #if HAVE_DECL_CURLOPT_UNRESTRICTED_AUTH
2860   IMM(UNRESTRICTED_AUTH),
2861 #else
2862   IMM_NO(UNRESTRICTED_AUTH),
2863 #endif
2864 #if HAVE_DECL_CURLOPT_FTP_USE_EPRT
2865   IMM(FTP_USE_EPRT),
2866 #else
2867   IMM_NO(FTP_USE_EPRT),
2868 #endif
2869 #if HAVE_DECL_CURLOPT_HTTPAUTH
2870   IMM(HTTPAUTH),
2871 #else
2872   IMM_NO(HTTPAUTH),
2873 #endif
2874 #if HAVE_DECL_CURLOPT_FTP_CREATE_MISSING_DIRS
2875   IMM(FTP_CREATE_MISSING_DIRS),
2876 #else
2877   IMM_NO(FTP_CREATE_MISSING_DIRS),
2878 #endif
2879 #if HAVE_DECL_CURLOPT_PROXYAUTH
2880   IMM(PROXYAUTH),
2881 #else
2882   IMM_NO(PROXYAUTH),
2883 #endif
2884 #if HAVE_DECL_CURLOPT_FTP_RESPONSE_TIMEOUT
2885   IMM(FTP_RESPONSE_TIMEOUT),
2886 #else
2887   IMM_NO(FTP_RESPONSE_TIMEOUT),
2888 #endif
2889 #if HAVE_DECL_CURLOPT_IPRESOLVE
2890   IMM(IPRESOLVE),
2891 #else
2892   IMM_NO(IPRESOLVE),
2893 #endif
2894 #if HAVE_DECL_CURLOPT_MAXFILESIZE
2895   IMM(MAXFILESIZE),
2896 #else
2897   IMM_NO(MAXFILESIZE),
2898 #endif
2899 #if HAVE_DECL_CURLOPT_INFILESIZE_LARGE
2900   IMM(INFILESIZE_LARGE),
2901 #else
2902   IMM_NO(INFILESIZE_LARGE),
2903 #endif
2904 #if HAVE_DECL_CURLOPT_RESUME_FROM_LARGE
2905   IMM(RESUME_FROM_LARGE),
2906 #else
2907   IMM_NO(RESUME_FROM_LARGE),
2908 #endif
2909 #if HAVE_DECL_CURLOPT_MAXFILESIZE_LARGE
2910   IMM(MAXFILESIZE_LARGE),
2911 #else
2912   IMM_NO(MAXFILESIZE_LARGE),
2913 #endif
2914 #if HAVE_DECL_CURLOPT_NETRC_FILE
2915   MAP(NETRC_FILE),
2916 #else
2917   MAP_NO(NETRC_FILE),
2918 #endif
2919 #if HAVE_DECL_CURLOPT_FTP_SSL
2920   IMM(FTP_SSL),
2921 #else
2922   IMM_NO(FTP_SSL),
2923 #endif
2924 #if HAVE_DECL_CURLOPT_POSTFIELDSIZE_LARGE
2925   IMM(POSTFIELDSIZE_LARGE),
2926 #else
2927   IMM_NO(POSTFIELDSIZE_LARGE),
2928 #endif
2929 #if HAVE_DECL_CURLOPT_TCP_NODELAY
2930   IMM(TCP_NODELAY),
2931 #else
2932   IMM_NO(TCP_NODELAY),
2933 #endif
2934 #if HAVE_DECL_CURLOPT_FTPSSLAUTH
2935   IMM(FTPSSLAUTH),
2936 #else
2937   IMM_NO(FTPSSLAUTH),
2938 #endif
2939 #if HAVE_DECL_CURLOPT_IOCTLFUNCTION
2940   MAP(IOCTLFUNCTION),
2941 #else
2942   MAP_NO(IOCTLFUNCTION),
2943 #endif
2944 #if HAVE_DECL_CURLOPT_FTP_ACCOUNT
2945   MAP(FTP_ACCOUNT),
2946 #else
2947   MAP_NO(FTP_ACCOUNT),
2948 #endif
2949 #if HAVE_DECL_CURLOPT_COOKIELIST
2950   MAP(COOKIELIST),
2951 #else
2952   MAP_NO(COOKIELIST),
2953 #endif
2954 #if HAVE_DECL_CURLOPT_IGNORE_CONTENT_LENGTH
2955   IMM(IGNORE_CONTENT_LENGTH),
2956 #else
2957   IMM_NO(IGNORE_CONTENT_LENGTH),
2958 #endif
2959 #if HAVE_DECL_CURLOPT_FTP_SKIP_PASV_IP
2960   IMM(FTP_SKIP_PASV_IP),
2961 #else
2962   IMM_NO(FTP_SKIP_PASV_IP),
2963 #endif
2964 #if HAVE_DECL_CURLOPT_FTP_FILEMETHOD
2965   IMM(FTP_FILEMETHOD),
2966 #else
2967   IMM_NO(FTP_FILEMETHOD),
2968 #endif
2969 #if HAVE_DECL_CURLOPT_LOCALPORT
2970   IMM(LOCALPORT),
2971 #else
2972   IMM_NO(LOCALPORT),
2973 #endif
2974 #if HAVE_DECL_CURLOPT_LOCALPORTRANGE
2975   IMM(LOCALPORTRANGE),
2976 #else
2977   IMM_NO(LOCALPORTRANGE),
2978 #endif
2979 #if HAVE_DECL_CURLOPT_CONNECT_ONLY
2980   IMM(CONNECT_ONLY),
2981 #else
2982   IMM_NO(CONNECT_ONLY),
2983 #endif
2984 #if HAVE_DECL_CURLOPT_MAX_SEND_SPEED_LARGE
2985   IMM(MAX_SEND_SPEED_LARGE),
2986 #else
2987   IMM_NO(MAX_SEND_SPEED_LARGE),
2988 #endif
2989 #if HAVE_DECL_CURLOPT_MAX_RECV_SPEED_LARGE
2990   IMM(MAX_RECV_SPEED_LARGE),
2991 #else
2992   IMM_NO(MAX_RECV_SPEED_LARGE),
2993 #endif
2994 #if HAVE_DECL_CURLOPT_FTP_ALTERNATIVE_TO_USER
2995   MAP(FTP_ALTERNATIVE_TO_USER),
2996 #else
2997   MAP_NO(FTP_ALTERNATIVE_TO_USER),
2998 #endif
2999 #if HAVE_DECL_CURLOPT_SSL_SESSIONID_CACHE
3000   IMM(SSL_SESSIONID_CACHE),
3001 #else
3002   IMM_NO(SSL_SESSIONID_CACHE),
3003 #endif
3004 #if HAVE_DECL_CURLOPT_SSH_AUTH_TYPES
3005   IMM(SSH_AUTH_TYPES),
3006 #else
3007   IMM_NO(SSH_AUTH_TYPES),
3008 #endif
3009 #if HAVE_DECL_CURLOPT_SSH_PUBLIC_KEYFILE
3010   MAP(SSH_PUBLIC_KEYFILE),
3011 #else
3012   MAP_NO(SSH_PUBLIC_KEYFILE),
3013 #endif
3014 #if HAVE_DECL_CURLOPT_SSH_PRIVATE_KEYFILE
3015   MAP(SSH_PRIVATE_KEYFILE),
3016 #else
3017   MAP_NO(SSH_PRIVATE_KEYFILE),
3018 #endif
3019 #if HAVE_DECL_CURLOPT_FTP_SSL_CCC
3020   IMM(FTP_SSL_CCC),
3021 #else
3022   IMM_NO(FTP_SSL_CCC),
3023 #endif
3024 #if HAVE_DECL_CURLOPT_TIMEOUT_MS
3025   IMM(TIMEOUT_MS),
3026 #else
3027   IMM_NO(TIMEOUT_MS),
3028 #endif
3029 #if HAVE_DECL_CURLOPT_CONNECTTIMEOUT_MS
3030   IMM(CONNECTTIMEOUT_MS),
3031 #else
3032   IMM_NO(CONNECTTIMEOUT_MS),
3033 #endif
3034 #if HAVE_DECL_CURLOPT_HTTP_TRANSFER_DECODING
3035   IMM(HTTP_TRANSFER_DECODING),
3036 #else
3037   IMM_NO(HTTP_TRANSFER_DECODING),
3038 #endif
3039 #if HAVE_DECL_CURLOPT_HTTP_CONTENT_DECODING
3040   IMM(HTTP_CONTENT_DECODING),
3041 #else
3042   IMM_NO(HTTP_CONTENT_DECODING),
3043 #endif
3044 #if HAVE_DECL_CURLOPT_NEW_FILE_PERMS
3045   IMM(NEW_FILE_PERMS),
3046 #else
3047   IMM_NO(NEW_FILE_PERMS),
3048 #endif
3049 #if HAVE_DECL_CURLOPT_NEW_DIRECTORY_PERMS
3050   IMM(NEW_DIRECTORY_PERMS),
3051 #else
3052   IMM_NO(NEW_DIRECTORY_PERMS),
3053 #endif
3054 #if HAVE_DECL_CURLOPT_POST301
3055   IMM(POST301),
3056 #else
3057   IMM_NO(POST301),
3058 #endif
3059 #if HAVE_DECL_CURLOPT_SSH_HOST_PUBLIC_KEY_MD5
3060   MAP(SSH_HOST_PUBLIC_KEY_MD5),
3061 #else
3062   MAP_NO(SSH_HOST_PUBLIC_KEY_MD5),
3063 #endif
3064 #if HAVE_DECL_CURLOPT_COPYPOSTFIELDS
3065   MAP(COPYPOSTFIELDS),
3066 #else
3067   MAP_NO(COPYPOSTFIELDS),
3068 #endif
3069 #if HAVE_DECL_CURLOPT_PROXY_TRANSFER_MODE
3070   IMM(PROXY_TRANSFER_MODE),
3071 #else
3072   IMM_NO(PROXY_TRANSFER_MODE),
3073 #endif
3074 #if HAVE_DECL_CURLOPT_SEEKFUNCTION
3075   MAP(SEEKFUNCTION),
3076 #else
3077   MAP_NO(SEEKFUNCTION),
3078 #endif
3079 #if HAVE_DECL_CURLOPT_AUTOREFERER
3080   IMM(AUTOREFERER),
3081 #else
3082   IMM_NO(AUTOREFERER),
3083 #endif
3084 #if HAVE_DECL_CURLOPT_OPENSOCKETFUNCTION
3085   MAP(OPENSOCKETFUNCTION),
3086 #else
3087   MAP_NO(OPENSOCKETFUNCTION),
3088 #endif
3089 #if HAVE_DECL_CURLOPT_PROXYTYPE
3090   IMM(PROXYTYPE),
3091 #else
3092   IMM_NO(PROXYTYPE),
3093 #endif
3094 #if HAVE_DECL_CURLOPT_PROTOCOLS
3095   IMM(PROTOCOLS),
3096 #else
3097   IMM_NO(PROTOCOLS),
3098 #endif
3099 #if HAVE_DECL_CURLOPT_REDIR_PROTOCOLS
3100   IMM(REDIR_PROTOCOLS),
3101 #else
3102   IMM_NO(REDIR_PROTOCOLS),
3103 #endif
3104 #if HAVE_DECL_CURLOPT_RESOLVE
3105   MAP(RESOLVE),
3106 #else
3107   MAP_NO(RESOLVE),
3108 #endif
3109 #if HAVE_DECL_CURLOPT_DNS_SERVERS
3110   MAP(DNS_SERVERS),
3111 #else
3112   MAP_NO(DNS_SERVERS),
3113 #endif
3114 #if HAVE_DECL_CURLOPT_MAIL_FROM
3115   MAP(MAIL_FROM),
3116 #else
3117   MAP_NO(MAIL_FROM),
3118 #endif
3119 #if HAVE_DECL_CURLOPT_MAIL_RCPT
3120   MAP(MAIL_RCPT),
3121 #else
3122   MAP_NO(MAIL_RCPT),
3123 #endif
3124 #if HAVE_DECL_CURLOPT_PIPEWAIT
3125   IMM(PIPEWAIT),
3126 #else
3127   IMM_NO(PIPEWAIT),
3128 #endif
3129 #if HAVE_DECL_CURLOPT_CERTINFO
3130   IMM(CERTINFO),
3131 #else
3132   IMM_NO(CERTINFO),
3133 #endif
3134 };
3135
3136 static Connection *duplicateConnection(Connection *original)
3137 {
3138     Connection *connection = NULL;
3139     CURL* h = NULL;
3140     size_t i = 0;
3141     CURLOptionMapping* this = NULL;
3142
3143     caml_enter_blocking_section();
3144     h  = curl_easy_duphandle(original->connection);
3145     caml_leave_blocking_section();
3146
3147     connection = allocConnection(h);
3148
3149     for (i = 0; i < sizeof(implementedOptionMap)/sizeof(CURLOptionMapping); i++)
3150     {
3151       this = &implementedOptionMap[i];
3152       if (-1 == this->ocamlValue) continue;
3153       if (this->optionHandler && (Field(original->ocamlValues, this->ocamlValue) != Val_unit))
3154       {
3155         this->optionHandler(connection, Field(original->ocamlValues, this->ocamlValue));
3156       }
3157     }
3158
3159     return connection;
3160 }
3161
3162 CAMLprim value helper_curl_easy_setopt(value conn, value option)
3163 {
3164     CAMLparam2(conn, option);
3165     CAMLlocal1(data);
3166     Connection *connection = Connection_val(conn);
3167     CURLOptionMapping* thisOption = NULL;
3168     static value* exception = NULL;
3169
3170     checkConnection(connection);
3171
3172     data = Field(option, 0);
3173
3174     if (Tag_val(option) < sizeof(implementedOptionMap)/sizeof(CURLOptionMapping))
3175     {
3176       thisOption = &implementedOptionMap[Tag_val(option)];
3177       if (thisOption->optionHandler)
3178       {
3179         thisOption->optionHandler(connection, data);
3180       }
3181       else
3182       {
3183         if (NULL == exception)
3184         {
3185           exception = caml_named_value("Curl.NotImplemented");
3186           if (NULL == exception) caml_invalid_argument("Curl.NotImplemented");
3187         }
3188
3189         caml_raise_with_string(*exception, thisOption->name);
3190       }
3191     }
3192     else
3193     {
3194       caml_failwith("Invalid CURLOPT Option");
3195     }
3196
3197     CAMLreturn(Val_unit);
3198 }
3199
3200 /**
3201  **  curl_easy_perform helper function
3202  **/
3203
3204 CAMLprim value helper_curl_easy_perform(value conn)
3205 {
3206     CAMLparam1(conn);
3207     CURLcode result = CURLE_OK;
3208     Connection *connection = Connection_val(conn);
3209
3210     checkConnection(connection);
3211
3212     caml_enter_blocking_section();
3213     result = curl_easy_perform(connection->connection);
3214     caml_leave_blocking_section();
3215
3216     if (result != CURLE_OK)
3217         raiseError(connection, result);
3218
3219     CAMLreturn(Val_unit);
3220 }
3221
3222 /**
3223  **  curl_easy_cleanup helper function
3224  **/
3225
3226 CAMLprim value helper_curl_easy_cleanup(value conn)
3227 {
3228     CAMLparam1(conn);
3229     Connection *connection = Connection_val(conn);
3230
3231     checkConnection(connection);
3232
3233     removeConnection(connection, 0);
3234
3235     CAMLreturn(Val_unit);
3236 }
3237
3238 /**
3239  **  curl_easy_duphandle helper function
3240  **/
3241
3242 CAMLprim value helper_curl_easy_duphandle(value conn)
3243 {
3244     CAMLparam1(conn);
3245     CAMLlocal1(result);
3246     Connection *connection = Connection_val(conn);
3247
3248     checkConnection(connection);
3249
3250     result = caml_curl_alloc(duplicateConnection(connection));
3251
3252     CAMLreturn(result);
3253 }
3254
3255 /**
3256  **  curl_easy_getinfo helper function
3257  **/
3258
3259 enum GetInfoResultType {
3260     StringValue, LongValue, DoubleValue, StringListValue, StringListListValue,
3261 };
3262
3263 value convertStringList(struct curl_slist *p)
3264 {
3265     CAMLparam0();
3266     CAMLlocal3(result, current, next);
3267
3268     result = Val_emptylist;
3269     current = Val_emptylist;
3270     next = Val_emptylist;
3271
3272     while (p != NULL)
3273     {
3274         next = caml_alloc_tuple(2);
3275         Store_field(next, 0, caml_copy_string(p->data));
3276         Store_field(next, 1, Val_emptylist);
3277
3278         if (result == Val_emptylist)
3279             result = next;
3280
3281         if (current != Val_emptylist)
3282           Store_field(current, 1, next);
3283
3284         current = next;
3285
3286         p = p->next;
3287     }
3288
3289     CAMLreturn(result);
3290 }
3291
3292 CAMLprim value helper_curl_easy_getinfo(value conn, value option)
3293 {
3294     CAMLparam2(conn, option);
3295     CAMLlocal3(result, current, next);
3296     CURLcode curlResult;
3297     Connection *connection = Connection_val(conn);
3298     enum GetInfoResultType resultType;
3299     char *strValue = NULL;
3300     double doubleValue;
3301     long longValue;
3302     struct curl_slist *stringListValue = NULL;
3303 #if HAVE_DECL_CURLINFO_CERTINFO
3304     int i;
3305     union {
3306       struct curl_slist    *to_info;
3307       struct curl_certinfo *to_certinfo;
3308     } ptr;
3309 #endif
3310
3311     checkConnection(connection);
3312
3313     switch(Long_val(option))
3314     {
3315 #if HAVE_DECL_CURLINFO_EFFECTIVE_URL
3316     case 0: /* CURLINFO_EFFECTIVE_URL */
3317         resultType = StringValue;
3318
3319         curlResult = curl_easy_getinfo(connection->connection,
3320                                        CURLINFO_EFFECTIVE_URL,
3321                                        &strValue);
3322         break;
3323 #else
3324 #pragma message("libcurl does not provide CURLINFO_EFFECTIVE_URL")
3325 #endif
3326
3327 #if HAVE_DECL_CURLINFO_RESPONSE_CODE || HAVE_DECL_CURLINFO_HTTP_CODE
3328     case 1: /* CURLINFO_HTTP_CODE */
3329     case 2: /* CURLINFO_RESPONSE_CODE */
3330 #if HAVE_DECL_CURLINFO_RESPONSE_CODE
3331         resultType = LongValue;
3332
3333         curlResult = curl_easy_getinfo(connection->connection,
3334                                        CURLINFO_RESPONSE_CODE,
3335                                        &longValue);
3336 #else
3337         resultType = LongValue;
3338
3339         curlResult = curl_easy_getinfo(connection->connection,
3340                                        CURLINFO_HTTP_CODE,
3341                                        &longValue);
3342 #endif
3343         break;
3344 #endif
3345
3346 #if HAVE_DECL_CURLINFO_TOTAL_TIME
3347     case 3: /* CURLINFO_TOTAL_TIME */
3348         resultType = DoubleValue;
3349
3350         curlResult = curl_easy_getinfo(connection->connection,
3351                                        CURLINFO_TOTAL_TIME,
3352                                        &doubleValue);
3353         break;
3354 #endif
3355
3356 #if HAVE_DECL_CURLINFO_NAMELOOKUP_TIME
3357     case 4: /* CURLINFO_NAMELOOKUP_TIME */
3358         resultType = DoubleValue;
3359
3360         curlResult = curl_easy_getinfo(connection->connection,
3361                                        CURLINFO_NAMELOOKUP_TIME,
3362                                        &doubleValue);
3363         break;
3364 #endif
3365
3366 #if HAVE_DECL_CURLINFO_CONNECT_TIME
3367     case 5: /* CURLINFO_CONNECT_TIME */
3368         resultType = DoubleValue;
3369
3370         curlResult = curl_easy_getinfo(connection->connection,
3371                                        CURLINFO_CONNECT_TIME,
3372                                        &doubleValue);
3373         break;
3374 #endif
3375
3376 #if HAVE_DECL_CURLINFO_PRETRANSFER_TIME
3377     case 6: /* CURLINFO_PRETRANSFER_TIME */
3378         resultType = DoubleValue;
3379
3380         curlResult = curl_easy_getinfo(connection->connection,
3381                                        CURLINFO_PRETRANSFER_TIME,
3382                                        &doubleValue);
3383         break;
3384 #endif
3385
3386 #if HAVE_DECL_CURLINFO_SIZE_UPLOAD
3387     case 7: /* CURLINFO_SIZE_UPLOAD */
3388         resultType = DoubleValue;
3389
3390         curlResult = curl_easy_getinfo(connection->connection,
3391                                        CURLINFO_SIZE_UPLOAD,
3392                                        &doubleValue);
3393         break;
3394 #endif
3395
3396 #if HAVE_DECL_CURLINFO_SIZE_DOWNLOAD
3397     case 8: /* CURLINFO_SIZE_DOWNLOAD */
3398         resultType = DoubleValue;
3399
3400         curlResult = curl_easy_getinfo(connection->connection,
3401                                        CURLINFO_SIZE_DOWNLOAD,
3402                                        &doubleValue);
3403         break;
3404 #endif
3405
3406 #if HAVE_DECL_CURLINFO_SPEED_DOWNLOAD
3407     case 9: /* CURLINFO_SPEED_DOWNLOAD */
3408         resultType = DoubleValue;
3409
3410         curlResult = curl_easy_getinfo(connection->connection,
3411                                        CURLINFO_SPEED_DOWNLOAD,
3412                                        &doubleValue);
3413         break;
3414 #endif
3415
3416 #if HAVE_DECL_CURLINFO_SPEED_UPLOAD
3417     case 10: /* CURLINFO_SPEED_UPLOAD */
3418         resultType = DoubleValue;
3419
3420         curlResult = curl_easy_getinfo(connection->connection,
3421                                        CURLINFO_SPEED_UPLOAD,
3422                                        &doubleValue);
3423         break;
3424
3425 #endif
3426
3427 #if HAVE_DECL_CURLINFO_HEADER_SIZE
3428     case 11: /* CURLINFO_HEADER_SIZE */
3429         resultType = LongValue;
3430
3431         curlResult = curl_easy_getinfo(connection->connection,
3432                                        CURLINFO_HEADER_SIZE,
3433                                        &longValue);
3434         break;
3435 #endif
3436
3437 #if HAVE_DECL_CURLINFO_REQUEST_SIZE
3438     case 12: /* CURLINFO_REQUEST_SIZE */
3439         resultType = LongValue;
3440
3441         curlResult = curl_easy_getinfo(connection->connection,
3442                                        CURLINFO_REQUEST_SIZE,
3443                                        &longValue);
3444         break;
3445 #endif
3446
3447 #if HAVE_DECL_CURLINFO_SSL_VERIFYRESULT
3448     case 13: /* CURLINFO_SSL_VERIFYRESULT */
3449         resultType = LongValue;
3450
3451         curlResult = curl_easy_getinfo(connection->connection,
3452                                        CURLINFO_SSL_VERIFYRESULT,
3453                                        &longValue);
3454         break;
3455 #endif
3456
3457 #if HAVE_DECL_CURLINFO_FILETIME
3458     case 14: /* CURLINFO_FILETIME */
3459         resultType = DoubleValue;
3460
3461         curlResult = curl_easy_getinfo(connection->connection,
3462                                        CURLINFO_FILETIME,
3463                                        &longValue);
3464
3465         doubleValue = longValue;
3466         break;
3467 #endif
3468
3469 #if HAVE_DECL_CURLINFO_CONTENT_LENGTH_DOWNLOAD
3470     case 15: /* CURLINFO_CONTENT_LENGTH_DOWNLOAD */
3471         resultType = DoubleValue;
3472
3473         curlResult = curl_easy_getinfo(connection->connection,
3474                                        CURLINFO_CONTENT_LENGTH_DOWNLOAD,
3475                                        &doubleValue);
3476         break;
3477 #endif
3478
3479 #if HAVE_DECL_CURLINFO_CONTENT_LENGTH_UPLOAD
3480     case 16: /* CURLINFO_CONTENT_LENGTH_UPLOAD */
3481         resultType = DoubleValue;
3482
3483         curlResult = curl_easy_getinfo(connection->connection,
3484                                        CURLINFO_CONTENT_LENGTH_UPLOAD,
3485                                        &doubleValue);
3486         break;
3487 #endif
3488
3489 #if HAVE_DECL_CURLINFO_STARTTRANSFER_TIME
3490     case 17: /* CURLINFO_STARTTRANSFER_TIME */
3491         resultType = DoubleValue;
3492
3493         curlResult = curl_easy_getinfo(connection->connection,
3494                                        CURLINFO_STARTTRANSFER_TIME,
3495                                        &doubleValue);
3496         break;
3497 #endif
3498
3499 #if HAVE_DECL_CURLINFO_CONTENT_TYPE
3500     case 18: /* CURLINFO_CONTENT_TYPE */
3501         resultType = StringValue;
3502
3503         curlResult = curl_easy_getinfo(connection->connection,
3504                                        CURLINFO_CONTENT_TYPE,
3505                                        &strValue);
3506         break;
3507 #endif
3508
3509 #if HAVE_DECL_CURLINFO_REDIRECT_TIME
3510     case 19: /* CURLINFO_REDIRECT_TIME */
3511         resultType = DoubleValue;
3512
3513         curlResult = curl_easy_getinfo(connection->connection,
3514                                        CURLINFO_REDIRECT_TIME,
3515                                        &doubleValue);
3516         break;
3517 #endif
3518
3519 #if HAVE_DECL_CURLINFO_REDIRECT_COUNT
3520     case 20: /* CURLINFO_REDIRECT_COUNT */
3521         resultType = LongValue;
3522
3523         curlResult = curl_easy_getinfo(connection->connection,
3524                                        CURLINFO_REDIRECT_COUNT,
3525                                        &longValue);
3526         break;
3527 #endif
3528
3529 #if HAVE_DECL_CURLINFO_PRIVATE
3530     case 21: /* CURLINFO_PRIVATE */
3531         resultType = StringValue;
3532
3533         curlResult = curl_easy_getinfo(connection->connection,
3534                                        CURLINFO_PRIVATE,
3535                                        &strValue);
3536         break;
3537 #endif
3538
3539 #if HAVE_DECL_CURLINFO_HTTP_CONNECTCODE
3540     case 22: /* CURLINFO_HTTP_CONNECTCODE */
3541         resultType = LongValue;
3542
3543         curlResult = curl_easy_getinfo(connection->connection,
3544                                        CURLINFO_HTTP_CONNECTCODE,
3545                                        &longValue);
3546         break;
3547 #endif
3548
3549 #if HAVE_DECL_CURLINFO_HTTPAUTH_AVAIL
3550     case 23: /* CURLINFO_HTTPAUTH_AVAIL */
3551         resultType = LongValue;
3552
3553         curlResult = curl_easy_getinfo(connection->connection,
3554                                        CURLINFO_HTTPAUTH_AVAIL,
3555                                        &longValue);
3556         break;
3557 #endif
3558
3559 #if HAVE_DECL_CURLINFO_PROXYAUTH_AVAIL
3560     case 24: /* CURLINFO_PROXYAUTH_AVAIL */
3561         resultType = LongValue;
3562
3563         curlResult = curl_easy_getinfo(connection->connection,
3564                                        CURLINFO_PROXYAUTH_AVAIL,
3565                                        &longValue);
3566         break;
3567 #endif
3568
3569 #if HAVE_DECL_CURLINFO_OS_ERRNO
3570     case 25: /* CURLINFO_OS_ERRNO */
3571         resultType = LongValue;
3572
3573         curlResult = curl_easy_getinfo(connection->connection,
3574                                        CURLINFO_OS_ERRNO,
3575                                        &longValue);
3576         break;
3577 #endif
3578
3579 #if HAVE_DECL_CURLINFO_NUM_CONNECTS
3580     case 26: /* CURLINFO_NUM_CONNECTS */
3581         resultType = LongValue;
3582
3583         curlResult = curl_easy_getinfo(connection->connection,
3584                                        CURLINFO_NUM_CONNECTS,
3585                                        &longValue);
3586         break;
3587 #endif
3588
3589 #if HAVE_DECL_CURLINFO_SSL_ENGINES
3590     case 27: /* CURLINFO_SSL_ENGINES */
3591         resultType = StringListValue;
3592
3593         curlResult = curl_easy_getinfo(connection->connection,
3594                                        CURLINFO_SSL_ENGINES,
3595                                        &stringListValue);
3596         break;
3597 #endif
3598
3599 #if HAVE_DECL_CURLINFO_COOKIELIST
3600     case 28: /* CURLINFO_COOKIELIST */
3601         resultType = StringListValue;
3602
3603         curlResult = curl_easy_getinfo(connection->connection,
3604                                        CURLINFO_COOKIELIST,
3605                                        &stringListValue);
3606         break;
3607 #endif
3608
3609 #if HAVE_DECL_CURLINFO_LASTSOCKET
3610     case 29: /* CURLINFO_LASTSOCKET */
3611         resultType = LongValue;
3612
3613         curlResult = curl_easy_getinfo(connection->connection,
3614                                        CURLINFO_LASTSOCKET,
3615                                        &longValue);
3616         break;
3617 #endif
3618
3619 #if HAVE_DECL_CURLINFO_FTP_ENTRY_PATH
3620     case 30: /* CURLINFO_FTP_ENTRY_PATH */
3621         resultType = StringValue;
3622
3623         curlResult = curl_easy_getinfo(connection->connection,
3624                                        CURLINFO_FTP_ENTRY_PATH,
3625                                        &strValue);
3626         break;
3627 #endif
3628
3629 #if HAVE_DECL_CURLINFO_REDIRECT_URL
3630     case 31: /* CURLINFO_REDIRECT_URL */
3631         resultType = StringValue;
3632
3633         curlResult = curl_easy_getinfo(connection->connection,
3634                                        CURLINFO_REDIRECT_URL,
3635                                        &strValue);
3636         break;
3637 #else
3638 #pragma message("libcurl does not provide CURLINFO_REDIRECT_URL")
3639 #endif
3640
3641 #if HAVE_DECL_CURLINFO_PRIMARY_IP
3642     case 32: /* CURLINFO_PRIMARY_IP */
3643         resultType = StringValue;
3644
3645         curlResult = curl_easy_getinfo(connection->connection,
3646                                        CURLINFO_PRIMARY_IP,
3647                                        &strValue);
3648         break;
3649 #else
3650 #pragma message("libcurl does not provide CURLINFO_PRIMARY_IP")
3651 #endif
3652
3653 #if HAVE_DECL_CURLINFO_LOCAL_IP
3654     case 33: /* CURLINFO_LOCAL_IP */
3655         resultType = StringValue;
3656
3657         curlResult = curl_easy_getinfo(connection->connection,
3658                                        CURLINFO_LOCAL_IP,
3659                                        &strValue);
3660         break;
3661 #else
3662 #pragma message("libcurl does not provide CURLINFO_LOCAL_IP")
3663 #endif
3664
3665 #if HAVE_DECL_CURLINFO_LOCAL_PORT
3666     case 34: /* CURLINFO_LOCAL_PORT */
3667         resultType = LongValue;
3668
3669         curlResult = curl_easy_getinfo(connection->connection,
3670                                        CURLINFO_LOCAL_PORT,
3671                                        &longValue);
3672         break;
3673 #else
3674 #pragma message("libcurl does not provide CURLINFO_LOCAL_PORT")
3675 #endif
3676
3677 #if HAVE_DECL_CURLINFO_CONDITION_UNMET
3678     case 35: /* CURLINFO_CONDITION_UNMET */
3679         resultType = LongValue;
3680
3681         curlResult = curl_easy_getinfo(connection->connection,
3682                                        CURLINFO_CONDITION_UNMET,
3683                                        &longValue);
3684         break;
3685 #else
3686 #pragma message("libcurl does not provide CURLINFO_CONDITION_UNMET")
3687 #endif
3688 #if HAVE_DECL_CURLINFO_CERTINFO
3689     case 36: /* CURLINFO_CERTINFO */
3690         resultType = StringListListValue;
3691         ptr.to_info = NULL;
3692         curlResult = curl_easy_getinfo(connection->connection,
3693                                        CURLINFO_CERTINFO,
3694                                        &ptr.to_info);
3695
3696         result = Val_emptylist;
3697         current = Val_emptylist;
3698         next = Val_emptylist;
3699
3700         if (curlResult != CURLE_OK || !ptr.to_info)
3701           break;
3702
3703         for (i = 0; i < ptr.to_certinfo->num_of_certs; i++) {
3704           next = caml_alloc_tuple(2);
3705           Store_field(next, 0, convertStringList(ptr.to_certinfo->certinfo[i]));
3706           Store_field(next, 1, current);
3707           current = next;
3708         }
3709         break;
3710 #else
3711 #pragma message("libcurl does not provide CURLINFO_CERTINFO")
3712 #endif
3713     default:
3714         caml_failwith("Invalid CURLINFO Option");
3715         break;
3716     }
3717
3718     if (curlResult != CURLE_OK)
3719         raiseError(connection, curlResult);
3720
3721     switch (resultType)
3722     {
3723     case StringValue:
3724         result = caml_alloc(1, StringValue);
3725         Store_field(result, 0, caml_copy_string(strValue?strValue:""));
3726         break;
3727
3728     case LongValue:
3729         result = caml_alloc(1, LongValue);
3730         Store_field(result, 0, Val_long(longValue));
3731         break;
3732
3733     case DoubleValue:
3734         result = caml_alloc(1, DoubleValue);
3735         Store_field(result, 0, caml_copy_double(doubleValue));
3736         break;
3737
3738     case StringListValue:
3739         result = caml_alloc(1, StringListValue);
3740         Store_field(result, 0, convertStringList(stringListValue));
3741         curl_slist_free_all(stringListValue);
3742         break;
3743
3744     case StringListListValue:
3745         result = caml_alloc(1, StringListListValue);
3746         Store_field(result, 0, current);
3747         break;
3748     }
3749
3750     CAMLreturn(result);
3751 }
3752
3753 /**
3754  **  curl_escape helper function
3755  **/
3756
3757 CAMLprim value helper_curl_escape(value str)
3758 {
3759     CAMLparam1(str);
3760     CAMLlocal1(result);
3761     char *curlResult;
3762
3763     curlResult = curl_escape(String_val(str), caml_string_length(str));
3764     result = caml_copy_string(curlResult);
3765     free(curlResult);
3766
3767     CAMLreturn(result);
3768 }
3769
3770 /**
3771  **  curl_unescape helper function
3772  **/
3773
3774 CAMLprim value helper_curl_unescape(value str)
3775 {
3776     CAMLparam1(str);
3777     CAMLlocal1(result);
3778     char *curlResult;
3779
3780     curlResult = curl_unescape(String_val(str), caml_string_length(str));
3781     result = caml_copy_string(curlResult);
3782     free(curlResult);
3783
3784     CAMLreturn(result);
3785 }
3786
3787 /**
3788  **  curl_getdate helper function
3789  **/
3790
3791 CAMLprim value helper_curl_getdate(value str, value now)
3792 {
3793     CAMLparam2(str, now);
3794     CAMLlocal1(result);
3795     time_t curlResult;
3796     time_t curlNow;
3797
3798     curlNow = (time_t)Double_val(now);
3799     curlResult = curl_getdate(String_val(str), &curlNow);
3800     result = caml_copy_double((double)curlResult);
3801
3802     CAMLreturn(result);
3803 }
3804
3805 /**
3806  **  curl_version helper function
3807  **/
3808
3809 CAMLprim value helper_curl_version(void)
3810 {
3811     CAMLparam0();
3812     CAMLlocal1(result);
3813     char *str;
3814
3815     str = curl_version();
3816     result = caml_copy_string(str);
3817
3818     CAMLreturn(result);
3819 }
3820
3821 struct CURLVersionBitsMapping
3822 {
3823     int code;
3824     char *name;
3825 };
3826
3827 struct CURLVersionBitsMapping versionBitsMap[] =
3828 {
3829     {CURL_VERSION_IPV6, "ipv6"},
3830     {CURL_VERSION_KERBEROS4, "kerberos4"},
3831     {CURL_VERSION_SSL, "ssl"},
3832     {CURL_VERSION_LIBZ, "libz"},
3833     {CURL_VERSION_NTLM, "ntlm"},
3834     {CURL_VERSION_GSSNEGOTIATE, "gssnegotiate"},
3835     {CURL_VERSION_DEBUG, "debug"},
3836     {CURL_VERSION_CURLDEBUG, "curldebug"},
3837     {CURL_VERSION_ASYNCHDNS, "asynchdns"},
3838     {CURL_VERSION_SPNEGO, "spnego"},
3839     {CURL_VERSION_LARGEFILE, "largefile"},
3840     {CURL_VERSION_IDN, "idn"},
3841     {CURL_VERSION_SSPI, "sspi"},
3842     {CURL_VERSION_CONV, "conv"},
3843 #if HAVE_DECL_CURL_VERSION_TLSAUTH_SRP
3844     {CURL_VERSION_TLSAUTH_SRP, "srp"},
3845 #endif
3846 #if HAVE_DECL_CURL_VERSION_NTLM_WB
3847     {CURL_VERSION_NTLM_WB, "wb"},
3848 #endif
3849 };
3850
3851 CAMLprim value caml_curl_version_info(value unit)
3852 {
3853   CAMLparam1(unit);
3854   CAMLlocal4(v, vlist, vnum, vfeatures);
3855   const char* const* p = NULL;
3856   size_t i = 0;
3857
3858   curl_version_info_data* data = curl_version_info(CURLVERSION_NOW);
3859   if (NULL == data) caml_failwith("curl_version_info");
3860
3861   vlist = Val_emptylist;
3862   for (p = data->protocols; NULL != *p; p++)
3863   {
3864     vlist = Val_cons(vlist, caml_copy_string(*p));
3865   }
3866
3867   vfeatures = Val_emptylist;
3868   for (i = 0; i < sizeof(versionBitsMap)/sizeof(versionBitsMap[0]); i++)
3869   {
3870     if (0 != (versionBitsMap[i].code & data->features))
3871       vfeatures = Val_cons(vfeatures, caml_copy_string(versionBitsMap[i].name));
3872   }
3873
3874   vnum = caml_alloc_tuple(3);
3875   Store_field(vnum,0,Val_int(0xFF & (data->version_num >> 16)));
3876   Store_field(vnum,1,Val_int(0xFF & (data->version_num >> 8)));
3877   Store_field(vnum,2,Val_int(0xFF & (data->version_num)));
3878
3879   v = caml_alloc_tuple(12);
3880   Store_field(v,0,caml_copy_string(data->version));
3881   Store_field(v,1,vnum);
3882   Store_field(v,2,caml_copy_string(data->host));
3883   Store_field(v,3,vfeatures);
3884   Store_field(v,4,data->ssl_version ? Val_some(caml_copy_string(data->ssl_version)) : Val_none);
3885   Store_field(v,5,data->libz_version ? Val_some(caml_copy_string(data->libz_version)) : Val_none);
3886   Store_field(v,6,vlist);
3887   Store_field(v,7,caml_copy_string((data->age >= 1 && data->ares) ? data->ares : ""));
3888   Store_field(v,8,Val_int((data->age >= 1) ? data->ares_num : 0));
3889   Store_field(v,9,caml_copy_string((data->age >= 2 && data->libidn) ? data->libidn : ""));
3890   Store_field(v,10,Val_int((data->age >= 3) ? data->iconv_ver_num : 0));
3891   Store_field(v,11,caml_copy_string((data->age >= 3 && data->libssh_version) ? data->libssh_version : ""));
3892
3893   CAMLreturn(v);
3894 }
3895
3896 CAMLprim value caml_curl_pause(value conn, value opts)
3897 {
3898   CAMLparam2(conn, opts);
3899   CAMLlocal4(v, vlist, vnum, vfeatures);
3900   Connection *connection = Connection_val(conn);
3901   int bitmask = 0;
3902   CURLcode result;
3903
3904   while (Val_emptylist != opts)
3905   {
3906     switch (Int_val(Field(opts,0)))
3907     {
3908       case 0: bitmask |= CURLPAUSE_SEND; break;
3909       case 1: bitmask |= CURLPAUSE_RECV; break;
3910       case 2: bitmask |= CURLPAUSE_ALL; break;
3911       default: caml_failwith("wrong pauseOption");
3912     }
3913     opts = Field(opts,1);
3914   }
3915
3916   result = curl_easy_pause(connection->connection,bitmask);
3917   if (result != CURLE_OK)
3918     raiseError(connection, result);
3919
3920   CAMLreturn(Val_unit);
3921 }
3922
3923 /*
3924  * Curl multi stack support
3925  *
3926  * Exported thin wrappers for libcurl are prefixed with caml_curl_multi_.
3927  * Other exported functions are prefixed with caml_curlm_, some of them
3928  * can/should be decomposed into smaller parts.
3929  */
3930
3931 struct ml_multi_handle
3932 {
3933   CURLM* handle;
3934   value values; /* callbacks */
3935 };
3936
3937 enum
3938 {
3939   curlmopt_socket_function,
3940   curlmopt_timer_function,
3941
3942   /* last, not used */
3943   multi_values_total
3944 };
3945
3946 typedef struct ml_multi_handle ml_multi_handle;
3947
3948 #define Multi_val(v) (*(ml_multi_handle**)Data_custom_val(v))
3949 #define CURLM_val(v) (Multi_val(v)->handle)
3950
3951 static struct custom_operations curl_multi_ops = {
3952   "ygrek.curl_multi",
3953   custom_finalize_default,
3954   custom_compare_default,
3955   custom_hash_default,
3956   custom_serialize_default,
3957   custom_deserialize_default,
3958 #if defined(custom_compare_ext_default)
3959   custom_compare_ext_default,
3960 #endif
3961 };
3962
3963 CAMLprim value caml_curl_multi_init(value unit)
3964 {
3965   CAMLparam1(unit);
3966   CAMLlocal1(v);
3967   ml_multi_handle* multi = (ml_multi_handle*)caml_stat_alloc(sizeof(ml_multi_handle));
3968   CURLM* h = curl_multi_init();
3969
3970   if (!h)
3971   {
3972     caml_stat_free(multi);
3973     caml_failwith("caml_curl_multi_init");
3974   }
3975
3976   multi->handle = h;
3977   multi->values = caml_alloc(multi_values_total, 0);
3978   caml_register_generational_global_root(&multi->values);
3979
3980   v = caml_alloc_custom(&curl_multi_ops, sizeof(ml_multi_handle*), 0, 1);
3981   Multi_val(v) = multi;
3982
3983   CAMLreturn(v);
3984 }
3985
3986 CAMLprim value caml_curl_multi_cleanup(value handle)
3987 {
3988   CAMLparam1(handle);
3989   ml_multi_handle* h = Multi_val(handle);
3990
3991   if (NULL == h)
3992     CAMLreturn(Val_unit);
3993
3994   caml_remove_generational_global_root(&h->values);
3995
3996   if (CURLM_OK != curl_multi_cleanup(h->handle))
3997     caml_failwith("caml_curl_multi_cleanup");
3998
3999   caml_stat_free(h);
4000   Multi_val(handle) = (ml_multi_handle*)NULL;
4001
4002   CAMLreturn(Val_unit);
4003 }
4004
4005 static CURL* curlm_remove_finished(CURLM* multi_handle, CURLcode* result)
4006 {
4007   int msgs_in_queue = 0;
4008
4009   while (1)
4010   {
4011     CURLMsg* msg = curl_multi_info_read(multi_handle, &msgs_in_queue);
4012     if (NULL == msg) return NULL;
4013     if (CURLMSG_DONE == msg->msg)
4014     {
4015       CURL* easy_handle = msg->easy_handle;
4016       if (result) *result = msg->data.result;
4017       if (CURLM_OK != curl_multi_remove_handle(multi_handle, easy_handle))
4018       {
4019         /*caml_failwith("curlm_remove_finished");*/
4020       }
4021       return easy_handle;
4022     }
4023   }
4024 }
4025
4026 CAMLprim value caml_curlm_remove_finished(value v_multi)
4027 {
4028   CAMLparam1(v_multi);
4029   CAMLlocal2(v_easy, v_tuple);
4030   CURL* handle;
4031   CURLM* multi_handle;
4032   CURLcode result;
4033   Connection* conn = NULL;
4034
4035   multi_handle = CURLM_val(v_multi);
4036
4037   caml_enter_blocking_section();
4038   handle = curlm_remove_finished(multi_handle,&result);
4039   caml_leave_blocking_section();
4040
4041   if (NULL == handle)
4042   {
4043     CAMLreturn(Val_none);
4044   }
4045   else
4046   {
4047     conn = findConnection(handle);
4048     if (conn->curl_ERRORBUFFER != NULL)
4049     {
4050         Store_field(Field(conn->ocamlValues, Ocaml_ERRORBUFFER), 0, caml_copy_string(conn->curl_ERRORBUFFER));
4051     }
4052     conn->refcount--;
4053     /* NB: same handle, but different block */
4054     v_easy = caml_curl_alloc(conn);
4055     v_tuple = caml_alloc(2, 0);
4056     Store_field(v_tuple,0,v_easy);
4057     Store_field(v_tuple,1,Val_int(result)); /* CURLcode */
4058     CAMLreturn(Val_some(v_tuple));
4059   }
4060 }
4061
4062 static int curlm_wait_data(CURLM* multi_handle)
4063 {
4064         struct timeval timeout;
4065   CURLMcode ret;
4066
4067         fd_set fdread;
4068         fd_set fdwrite;
4069         fd_set fdexcep;
4070         int maxfd = -1;
4071
4072         FD_ZERO(&fdread);
4073         FD_ZERO(&fdwrite);
4074         FD_ZERO(&fdexcep);
4075
4076         /* set a suitable timeout */
4077         timeout.tv_sec = 1;
4078         timeout.tv_usec = 0;
4079
4080         /* get file descriptors from the transfers */
4081         ret = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
4082
4083         if (ret == CURLM_OK && maxfd >= 0)
4084         {
4085                 int rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
4086                 if (-1 != rc) return 0;
4087         }
4088         return 1;
4089 }
4090
4091 CAMLprim value caml_curlm_wait_data(value v_multi)
4092 {
4093   CAMLparam1(v_multi);
4094   int ret;
4095   CURLM* h = CURLM_val(v_multi);
4096
4097   caml_enter_blocking_section();
4098   ret = curlm_wait_data(h);
4099   caml_leave_blocking_section();
4100
4101   CAMLreturn(Val_bool(0 == ret));
4102 }
4103
4104 CAMLprim value caml_curl_multi_add_handle(value v_multi, value v_easy)
4105 {
4106   CAMLparam2(v_multi,v_easy);
4107   CURLM* multi = CURLM_val(v_multi);
4108   Connection* conn = Connection_val(v_easy);
4109
4110   /* prevent collection of OCaml value while the easy handle is used
4111    and may invoke callbacks registered on OCaml side */
4112   conn->refcount++;
4113
4114   /* may invoke callbacks so need to be consistent with locks */
4115   caml_enter_blocking_section();
4116   if (CURLM_OK != curl_multi_add_handle(multi, conn->connection))
4117   {
4118     conn->refcount--; /* not added, revert */
4119     caml_leave_blocking_section();
4120     caml_failwith("caml_curl_multi_add_handle");
4121   }
4122   caml_leave_blocking_section();
4123
4124   CAMLreturn(Val_unit);
4125 }
4126
4127 CAMLprim value caml_curl_multi_remove_handle(value v_multi, value v_easy)
4128 {
4129   CAMLparam2(v_multi,v_easy);
4130   CURLM* multi = CURLM_val(v_multi);
4131   Connection* conn = Connection_val(v_easy);
4132
4133   /* may invoke callbacks so need to be consistent with locks */
4134   caml_enter_blocking_section();
4135   if (CURLM_OK != curl_multi_remove_handle(multi, conn->connection))
4136   {
4137     caml_leave_blocking_section();
4138     caml_failwith("caml_curl_multi_remove_handle");
4139   }
4140   conn->refcount--;
4141   caml_leave_blocking_section();
4142
4143   CAMLreturn(Val_unit);
4144 }
4145
4146 CAMLprim value caml_curl_multi_perform_all(value v_multi)
4147 {
4148   CAMLparam1(v_multi);
4149   int still_running = 0;
4150   CURLM* h = CURLM_val(v_multi);
4151
4152   caml_enter_blocking_section();
4153   while (CURLM_CALL_MULTI_PERFORM == curl_multi_perform(h, &still_running));
4154   caml_leave_blocking_section();
4155
4156   CAMLreturn(Val_int(still_running));
4157 }
4158
4159 CAMLprim value helper_curl_easy_strerror(value v_code)
4160 {
4161   CAMLparam1(v_code);
4162   CAMLreturn(caml_copy_string(curl_easy_strerror(Int_val(v_code))));
4163 }
4164
4165 /*
4166  * Wrappers for the curl_multi_socket_action infrastructure
4167  * Based on curl hiperfifo.c example
4168  */
4169
4170 #ifdef _WIN32
4171 #ifndef Val_socket
4172 #define Val_socket(v) win_alloc_socket(v)
4173 #endif
4174 #ifndef Socket_val
4175 #error Socket_val not defined in unixsupport.h
4176 #endif
4177 #else /* _WIN32 */
4178 #ifndef Socket_val
4179 #define Socket_val(v) Long_val(v)
4180 #endif
4181 #ifndef Val_socket
4182 #define Val_socket(v) Val_int(v)
4183 #endif
4184 #endif  /* _WIN32 */
4185
4186 static void raise_multi_error(char const* msg)
4187 {
4188   static value* exception = NULL;
4189
4190   if (NULL == exception)
4191   {
4192     exception = caml_named_value("Curl.Multi.Error");
4193     if (NULL == exception) caml_invalid_argument("Curl.Multi.Error");
4194   }
4195
4196   caml_raise_with_string(*exception, msg);
4197 }
4198
4199 static void check_mcode(CURLMcode code)
4200 {
4201   char const *s = NULL;
4202   switch (code)
4203   {
4204     case CURLM_OK                  : return;
4205     case CURLM_CALL_MULTI_PERFORM  : s="CURLM_CALL_MULTI_PERFORM"; break;
4206     case CURLM_BAD_HANDLE          : s="CURLM_BAD_HANDLE";         break;
4207     case CURLM_BAD_EASY_HANDLE     : s="CURLM_BAD_EASY_HANDLE";    break;
4208     case CURLM_OUT_OF_MEMORY       : s="CURLM_OUT_OF_MEMORY";      break;
4209     case CURLM_INTERNAL_ERROR      : s="CURLM_INTERNAL_ERROR";     break;
4210     case CURLM_UNKNOWN_OPTION      : s="CURLM_UNKNOWN_OPTION";     break;
4211     case CURLM_LAST                : s="CURLM_LAST";               break;
4212     case CURLM_BAD_SOCKET          : s="CURLM_BAD_SOCKET";         break;
4213     default                        : s="CURLM_unknown";            break;
4214   }
4215   raise_multi_error(s);
4216 }
4217
4218 CAMLprim value caml_curl_multi_socket_action(value v_multi, value v_fd, value v_kind)
4219 {
4220   CAMLparam3(v_multi, v_fd, v_kind);
4221   CURLM* h = CURLM_val(v_multi);
4222   int still_running = 0;
4223   CURLMcode rc = CURLM_OK;
4224   curl_socket_t socket;
4225   int kind = 0;
4226
4227   if (Val_none == v_fd)
4228   {
4229     socket = CURL_SOCKET_TIMEOUT;
4230   }
4231   else
4232   {
4233     socket = Socket_val(Field(v_fd, 0));
4234   }
4235
4236   switch (Int_val(v_kind))
4237   {
4238     case 0 : break;
4239     case 1 : kind |= CURL_CSELECT_IN; break;
4240     case 2 : kind |= CURL_CSELECT_OUT; break;
4241     case 3 : kind |= CURL_CSELECT_IN | CURL_CSELECT_OUT; break;
4242     default:
4243       raise_multi_error("caml_curl_multi_socket_action");
4244   }
4245
4246 /*  fprintf(stdout,"fd %u kind %u\n",socket, kind); fflush(stdout); */
4247
4248   caml_enter_blocking_section();
4249   do {
4250     rc = curl_multi_socket_action(h, socket, kind, &still_running);
4251   } while (rc == CURLM_CALL_MULTI_PERFORM);
4252   caml_leave_blocking_section();
4253
4254   check_mcode(rc);
4255
4256   CAMLreturn(Val_int(still_running));
4257 }
4258
4259 CAMLprim value caml_curl_multi_socket_all(value v_multi)
4260 {
4261   CAMLparam1(v_multi);
4262   int still_running = 0;
4263   CURLMcode rc = CURLM_OK;
4264   CURLM* h = CURLM_val(v_multi);
4265
4266   caml_enter_blocking_section();
4267   do {
4268     rc = curl_multi_socket_all(h, &still_running);
4269   } while (rc == CURLM_CALL_MULTI_PERFORM);
4270   caml_leave_blocking_section();
4271
4272   check_mcode(rc);
4273
4274   CAMLreturn(Val_int(still_running));
4275 }
4276
4277 static int curlm_sock_cb(CURL *e, curl_socket_t sock, int what, void *cbp, void *sockp)
4278 {
4279   caml_leave_blocking_section();
4280
4281   CAMLparam0();
4282   CAMLlocal2(v_what,csock);
4283   (void)e;
4284   (void)sockp; /* not used */
4285
4286   /* v_what = Val_int(what); */
4287   switch (what)
4288   {
4289     case CURL_POLL_NONE   : v_what = Val_int(0); break;
4290     case CURL_POLL_IN     : v_what = Val_int(1); break;
4291     case CURL_POLL_OUT    : v_what = Val_int(2); break;
4292     case CURL_POLL_INOUT  : v_what = Val_int(3); break;
4293     case CURL_POLL_REMOVE : v_what = Val_int(4); break;
4294     default:
4295       fprintf(stderr, "curlm_sock_cb sock=%d what=%d\n", sock, what);
4296       fflush(stderr);
4297       raise_multi_error("curlm_sock_cb"); /* FIXME exception from callback */
4298   }
4299   csock=Val_socket(sock);
4300   caml_callback2(Field(((ml_multi_handle*)cbp)->values,curlmopt_socket_function),
4301                  csock, v_what);
4302   CAMLdrop;
4303
4304   caml_enter_blocking_section();
4305   return 0;
4306 }
4307
4308 CAMLprim value caml_curl_multi_socketfunction(value v_multi, value v_cb)
4309 {
4310   CAMLparam2(v_multi, v_cb);
4311   ml_multi_handle* multi = Multi_val(v_multi);
4312
4313   Store_field(multi->values, curlmopt_socket_function, v_cb);
4314
4315   curl_multi_setopt(multi->handle, CURLMOPT_SOCKETFUNCTION, curlm_sock_cb);
4316   curl_multi_setopt(multi->handle, CURLMOPT_SOCKETDATA, multi);
4317
4318   CAMLreturn(Val_unit);
4319 }
4320
4321 static int curlm_timer_cb(CURLM *multi, long timeout_ms, void *userp)
4322 {
4323   caml_leave_blocking_section();
4324
4325   CAMLparam0();
4326   (void)multi;
4327   caml_callback(Field(((ml_multi_handle*)userp)->values,curlmopt_timer_function), Val_long(timeout_ms));
4328   CAMLdrop;
4329
4330   caml_enter_blocking_section();
4331   return 0;
4332 }
4333
4334 CAMLprim value caml_curl_multi_timerfunction(value v_multi, value v_cb)
4335 {
4336   CAMLparam2(v_multi, v_cb);
4337   ml_multi_handle* multi = Multi_val(v_multi);
4338
4339   Store_field(multi->values, curlmopt_timer_function, v_cb);
4340
4341   curl_multi_setopt(multi->handle, CURLMOPT_TIMERFUNCTION, curlm_timer_cb);
4342   curl_multi_setopt(multi->handle, CURLMOPT_TIMERDATA, multi);
4343
4344   CAMLreturn(Val_unit);
4345 }
4346
4347 CAMLprim value caml_curl_multi_timeout(value v_multi)
4348 {
4349   CAMLparam1(v_multi);
4350   long ms = 0;
4351   CURLMcode rc = CURLM_OK;
4352   ml_multi_handle* multi = Multi_val(v_multi);
4353
4354   rc = curl_multi_timeout(multi->handle, &ms);
4355
4356   check_mcode(rc);
4357
4358   CAMLreturn(Val_long(ms));
4359 }
4360
4361 #define SETMOPT_VAL_(func_name, curl_option, conv_val) \
4362 static void func_name(CURLM *handle, value option) \
4363 { \
4364     CAMLparam1(option); \
4365     CURLcode result = CURLM_OK; \
4366 \
4367     result = curl_multi_setopt(handle, curl_option, conv_val(option)); \
4368 \
4369     check_mcode(result); \
4370 \
4371     CAMLreturn0; \
4372 }
4373
4374 #define SETMOPT_VAL(name, conv) SETMOPT_VAL_(handle_multi_##name, CURLMOPT_##name, conv)
4375 #define SETMOPT_BOOL(name) SETMOPT_VAL(name, Bool_val)
4376 #define SETMOPT_LONG(name) SETMOPT_VAL(name, Long_val)
4377 #define SETMOPT_INT64(name) SETMOPT_VAL(name, Int64_val)
4378
4379 long pipeliningMap[] =
4380 {
4381   0, /* CURLPIPE_NOTHING */
4382   1, /* CURLPIPE_HTTP1 */
4383   2, /* CURLPIPE_MULTIPLEX */
4384 };
4385
4386 static void handle_multi_PIPELINING(CURLM* handle, value option)
4387 {
4388   CAMLparam1(option);
4389   CURLcode result = CURLM_OK;
4390
4391   long bits = convert_bit_list(pipeliningMap, sizeof(pipeliningMap) / sizeof(pipeliningMap[0]), option);
4392
4393   result = curl_multi_setopt(handle, CURLMOPT_PIPELINING, bits);
4394
4395   check_mcode(result);
4396
4397   CAMLreturn0;
4398 }
4399
4400 #if HAVE_DECL_CURLMOPT_MAXCONNECTS
4401 SETMOPT_LONG( MAXCONNECTS)
4402 #endif
4403
4404 #if HAVE_DECL_CURLMOPT_MAX_PIPELINE_LENGTH
4405 SETMOPT_LONG( MAX_PIPELINE_LENGTH)
4406 #endif
4407
4408 #if HAVE_DECL_CURLMOPT_MAX_HOST_CONNECTIONS
4409 SETMOPT_LONG( MAX_HOST_CONNECTIONS)
4410 #endif
4411
4412 typedef struct CURLMOptionMapping CURLMOptionMapping;
4413 #define OPT(name) { handle_multi_## name, "CURLMOPT_"#name}
4414 #define NO_OPT(name) { NULL, "CURLMOPT_"#name}
4415
4416 struct CURLMOptionMapping
4417 {
4418     void (*optionHandler)(CURLM *, value);
4419     char *name;
4420 };
4421
4422 CURLMOptionMapping implementedMOptionMap[] = {
4423   OPT( PIPELINING),
4424 #if HAVE_DECL_CURLMOPT_MAXCONNECTS
4425   OPT( MAXCONNECTS),
4426 #else
4427   NO_OPT( MAXCONNECTS),
4428 #endif
4429 #if HAVE_DECL_CURLMOPT_MAX_PIPELINE_LENGTH
4430   OPT( MAX_PIPELINE_LENGTH),
4431 #else
4432   NO_OPT( MAX_PIPELINE_LENGTH),
4433 #endif
4434 #if HAVE_DECL_CURLMOPT_MAX_HOST_CONNECTIONS
4435   OPT( MAX_HOST_CONNECTIONS),
4436 #else
4437   NO_OPT( MAX_HOST_CONNECTIONS),
4438 #endif
4439 };
4440
4441 CAMLprim value caml_curl_multi_setopt(value v_multi, value option)
4442 {
4443     CAMLparam2(v_multi, option);
4444     CAMLlocal1(data);
4445     CURLM *handle = Multi_val(v_multi)->handle;
4446     CURLMOptionMapping* thisOption = NULL;
4447     static value* exception = NULL;
4448
4449     data = Field(option, 0);
4450
4451     if (Tag_val(option) < sizeof(implementedMOptionMap)/sizeof(CURLMOptionMapping))
4452     {
4453       thisOption = &implementedMOptionMap[Tag_val(option)];
4454       if (thisOption->optionHandler)
4455       {
4456         thisOption->optionHandler(handle, data);
4457       }
4458       else
4459       {
4460         if (NULL == exception)
4461         {
4462           exception = caml_named_value("Curl.NotImplemented");
4463           if (NULL == exception) caml_invalid_argument("Curl.NotImplemented");
4464         }
4465
4466         caml_raise_with_string(*exception, thisOption->name);
4467       }
4468     }
4469     else
4470     {
4471       caml_failwith("Invalid CURLMOPT Option");
4472     }
4473
4474     CAMLreturn(Val_unit);
4475 }