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 #include <caml/alloc.h>
  18 #include <caml/memory.h>
  19 #include <caml/mlvalues.h>
  20 #include <caml/callback.h>
  21 #include <caml/fail.h>
  22 #include <caml/unixsupport.h>
  23 #include <caml/custom.h>
  24
  25 #ifdef HAVE_CONFIG_H
  26 #include "config.h"
  27 #else
  28 #pragma message("No config file given.")
  29 #endif
  30
  31 void leave_blocking_section(void);
  32 void enter_blocking_section(void);
  33
  34 #define Val_none Val_int(0)
  35
  36 static __inline value
  37 Val_some( value v )
  38 {
  39     CAMLparam1( v );
  40     CAMLlocal1( some );
  41     some = caml_alloc(1, 0);
  42     Store_field( some, 0, v );
  43     CAMLreturn( some );
  44 }
  45
  46 static value Val_pair(value v1, value v2)
  47 {
  48   CAMLparam2(v1,v2);
  49   CAMLlocal1(pair);
  50   pair = caml_alloc_small(2,0);
  51   Field(pair,0) = v1;
  52   Field(pair,1) = v2;
  53   CAMLreturn(pair);
  54 }
  55
  56 static value Val_cons(value list, value v) { return Val_pair(v,list); }
  57
  58 typedef struct Connection Connection;
  59 typedef struct ConnectionList ConnectionList;
  60
  61 #define Connection_val(v) (*(Connection**)Data_custom_val(v))
  62
  63 typedef enum OcamlValues
  64 {
  65     Ocaml_WRITEFUNCTION,
  66     Ocaml_READFUNCTION,
  67     Ocaml_ERRORBUFFER,
  68     Ocaml_POSTFIELDS,
  69     Ocaml_HTTPHEADER,
  70     Ocaml_HTTPPOST,
  71     Ocaml_QUOTE,
  72     Ocaml_POSTQUOTE,
  73     Ocaml_HEADERFUNCTION,
  74     Ocaml_PROGRESSFUNCTION,
  75     Ocaml_DEBUGFUNCTION,
  76     Ocaml_HTTP200ALIASES,
  77     Ocaml_IOCTLFUNCTION,
  78     Ocaml_SEEKFUNCTION,
  79     Ocaml_OPENSOCKETFUNCTION,
  80
  81     Ocaml_URL,
  82     Ocaml_PROXY,
  83     Ocaml_USERPWD,
  84     Ocaml_PROXYUSERPWD,
  85     Ocaml_RANGE,
  86     Ocaml_REFERER,
  87     Ocaml_USERAGENT,
  88     Ocaml_FTPPORT,
  89     Ocaml_COOKIE,
  90     Ocaml_HTTPPOSTSTRINGS,
  91     Ocaml_SSLCERT,
  92     Ocaml_SSLCERTTYPE,
  93     Ocaml_SSLCERTPASSWD,
  94     Ocaml_SSLKEY,
  95     Ocaml_SSLKEYTYPE,
  96     Ocaml_SSLKEYPASSWD,
  97     Ocaml_SSLENGINE,
  98     Ocaml_COOKIEFILE,
  99     Ocaml_CUSTOMREQUEST,
 100     Ocaml_INTERFACE,
 101     Ocaml_CAINFO,
 102     Ocaml_CAPATH,
 103     Ocaml_RANDOM_FILE,
 104     Ocaml_EGDSOCKET,
 105     Ocaml_COOKIEJAR,
 106     Ocaml_SSL_CIPHER_LIST,
 107     Ocaml_PRIVATE,
 108     Ocaml_NETRC_FILE,
 109     Ocaml_FTP_ACCOUNT,
 110     Ocaml_COOKIELIST,
 111     Ocaml_FTP_ALTERNATIVE_TO_USER,
 112     Ocaml_SSH_PUBLIC_KEYFILE,
 113     Ocaml_SSH_PRIVATE_KEYFILE,
 114     Ocaml_SSH_HOST_PUBLIC_KEY_MD5,
 115     Ocaml_COPYPOSTFIELDS,
 116
 117     Ocaml_DNS_SERVERS,
 118
 119     Ocaml_MAIL_FROM,
 120     Ocaml_MAIL_RCPT,
 121
 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 #if HAVE_DECL_CURLE_UNSUPPORTED_PROTOCOL
 207     {"CURLE_UNSUPPORTED_PROTOCOL", CURLE_UNSUPPORTED_PROTOCOL},
 208 #else
 209     {"CURLE_UNSUPPORTED_PROTOCOL", -1},
 210 #endif
 211 #if HAVE_DECL_CURLE_FAILED_INIT
 212     {"CURLE_FAILED_INIT", CURLE_FAILED_INIT},
 213 #else
 214     {"CURLE_FAILED_INIT", -1},
 215 #endif
 216 #if HAVE_DECL_CURLE_URL_MALFORMAT
 217     {"CURLE_URL_MALFORMAT", CURLE_URL_MALFORMAT},
 218 #else
 219     {"CURLE_URL_MALFORMAT", -1},
 220 #endif
 221 #if HAVE_DECL_CURLE_URL_MALFORMAT_USER
 222     {"CURLE_URL_MALFORMAT_USER", CURLE_URL_MALFORMAT_USER},
 223 #else
 224     {"CURLE_URL_MALFORMAT_USER", -1},
 225 #endif
 226 #if HAVE_DECL_CURLE_COULDNT_RESOLVE_PROXY
 227     {"CURLE_COULDNT_RESOLVE_PROXY", CURLE_COULDNT_RESOLVE_PROXY},
 228 #else
 229     {"CURLE_COULDNT_RESOLVE_PROXY", -1},
 230 #endif
 231 #if HAVE_DECL_CURLE_COULDNT_RESOLVE_HOST
 232     {"CURLE_COULDNT_RESOLVE_HOST", CURLE_COULDNT_RESOLVE_HOST},
 233 #else
 234     {"CURLE_COULDNT_RESOLVE_HOST", -1},
 235 #endif
 236 #if HAVE_DECL_CURLE_COULDNT_CONNECT
 237     {"CURLE_COULDNT_CONNECT", CURLE_COULDNT_CONNECT},
 238 #else
 239     {"CURLE_COULDNT_CONNECT", -1},
 240 #endif
 241 #if HAVE_DECL_CURLE_FTP_WEIRD_SERVER_REPLY
 242     {"CURLE_FTP_WEIRD_SERVER_REPLY", CURLE_FTP_WEIRD_SERVER_REPLY},
 243 #else
 244     {"CURLE_FTP_WEIRD_SERVER_REPLY", -1},
 245 #endif
 246 #if HAVE_DECL_CURLE_FTP_ACCESS_DENIED
 247     {"CURLE_FTP_ACCESS_DENIED", CURLE_FTP_ACCESS_DENIED},
 248 #else
 249     {"CURLE_FTP_ACCESS_DENIED", -1},
 250 #endif
 251 #if HAVE_DECL_CURLE_FTP_USER_PASSWORD_INCORRECT
 252     {"CURLE_FTP_USER_PASSWORD_INCORRECT", CURLE_FTP_USER_PASSWORD_INCORRECT},
 253 #else
 254     {"CURLE_FTP_USER_PASSWORD_INCORRECT", -1},
 255 #endif
 256 #if HAVE_DECL_CURLE_FTP_WEIRD_PASS_REPLY
 257     {"CURLE_FTP_WEIRD_PASS_REPLY", CURLE_FTP_WEIRD_PASS_REPLY},
 258 #else
 259     {"CURLE_FTP_WEIRD_PASS_REPLY", -1},
 260 #endif
 261 #if HAVE_DECL_CURLE_FTP_WEIRD_USER_REPLY
 262     {"CURLE_FTP_WEIRD_USER_REPLY", CURLE_FTP_WEIRD_USER_REPLY},
 263 #else
 264     {"CURLE_FTP_WEIRD_USER_REPLY", -1},
 265 #endif
 266 #if HAVE_DECL_CURLE_FTP_WEIRD_PASV_REPLY
 267     {"CURLE_FTP_WEIRD_PASV_REPLY", CURLE_FTP_WEIRD_PASV_REPLY},
 268 #else
 269     {"CURLE_FTP_WEIRD_PASV_REPLY", -1},
 270 #endif
 271 #if HAVE_DECL_CURLE_FTP_WEIRD_227_FORMAT
 272     {"CURLE_FTP_WEIRD_227_FORMAT", CURLE_FTP_WEIRD_227_FORMAT},
 273 #else
 274     {"CURLE_FTP_WEIRD_227_FORMAT", -1},
 275 #endif
 276 #if HAVE_DECL_CURLE_FTP_CANT_GET_HOST
 277     {"CURLE_FTP_CANT_GET_HOST", CURLE_FTP_CANT_GET_HOST},
 278 #else
 279     {"CURLE_FTP_CANT_GET_HOST", -1},
 280 #endif
 281 #if HAVE_DECL_CURLE_FTP_CANT_RECONNECT
 282     {"CURLE_FTP_CANT_RECONNECT", CURLE_FTP_CANT_RECONNECT},
 283 #else
 284     {"CURLE_FTP_CANT_RECONNECT", -1},
 285 #endif
 286 #if HAVE_DECL_CURLE_FTP_COULDNT_SET_BINARY
 287     {"CURLE_FTP_COULDNT_SET_BINARY", CURLE_FTP_COULDNT_SET_BINARY},
 288 #else
 289     {"CURLE_FTP_COULDNT_SET_BINARY", -1},
 290 #endif
 291 #if HAVE_DECL_CURLE_PARTIAL_FILE
 292     {"CURLE_PARTIAL_FILE", CURLE_PARTIAL_FILE},
 293 #else
 294     {"CURLE_PARTIAL_FILE", -1},
 295 #endif
 296 #if HAVE_DECL_CURLE_FTP_COULDNT_RETR_FILE
 297     {"CURLE_FTP_COULDNT_RETR_FILE", CURLE_FTP_COULDNT_RETR_FILE},
 298 #else
 299     {"CURLE_FTP_COULDNT_RETR_FILE", -1},
 300 #endif
 301 #if HAVE_DECL_CURLE_FTP_WRITE_ERROR
 302     {"CURLE_FTP_WRITE_ERROR", CURLE_FTP_WRITE_ERROR},
 303 #else
 304     {"CURLE_FTP_WRITE_ERROR", -1},
 305 #endif
 306 #if HAVE_DECL_CURLE_FTP_QUOTE_ERROR
 307     {"CURLE_FTP_QUOTE_ERROR", CURLE_FTP_QUOTE_ERROR},
 308 #else
 309     {"CURLE_FTP_QUOTE_ERROR", -1},
 310 #endif
 311 #if HAVE_DECL_CURLE_HTTP_NOT_FOUND
 312     {"CURLE_HTTP_NOT_FOUND", CURLE_HTTP_NOT_FOUND},
 313 #else
 314     {"CURLE_HTTP_NOT_FOUND", -1},
 315 #endif
 316 #if HAVE_DECL_CURLE_WRITE_ERROR
 317     {"CURLE_WRITE_ERROR", CURLE_WRITE_ERROR},
 318 #else
 319     {"CURLE_WRITE_ERROR", -1},
 320 #endif
 321 #if HAVE_DECL_CURLE_MALFORMAT_USER
 322     {"CURLE_MALFORMAT_USER", CURLE_MALFORMAT_USER},
 323 #else
 324     {"CURLE_MALFORMAT_USER", -1},
 325 #endif
 326 #if HAVE_DECL_CURLE_FTP_COULDNT_STOR_FILE
 327     {"CURLE_FTP_COULDNT_STOR_FILE", CURLE_FTP_COULDNT_STOR_FILE},
 328 #else
 329     {"CURLE_FTP_COULDNT_STOR_FILE", -1},
 330 #endif
 331 #if HAVE_DECL_CURLE_READ_ERROR
 332     {"CURLE_READ_ERROR", CURLE_READ_ERROR},
 333 #else
 334     {"CURLE_READ_ERROR", -1},
 335 #endif
 336 #if HAVE_DECL_CURLE_OUT_OF_MEMORY
 337     {"CURLE_OUT_OF_MEMORY", CURLE_OUT_OF_MEMORY},
 338 #else
 339     {"CURLE_OUT_OF_MEMORY", -1},
 340 #endif
 341 #if HAVE_DECL_CURLE_OPERATION_TIMEOUTED
 342     {"CURLE_OPERATION_TIMEOUTED", CURLE_OPERATION_TIMEOUTED},
 343 #else
 344     {"CURLE_OPERATION_TIMEOUTED", -1},
 345 #endif
 346 #if HAVE_DECL_CURLE_FTP_COULDNT_SET_ASCII
 347     {"CURLE_FTP_COULDNT_SET_ASCII", CURLE_FTP_COULDNT_SET_ASCII},
 348 #else
 349     {"CURLE_FTP_COULDNT_SET_ASCII", -1},
 350 #endif
 351 #if HAVE_DECL_CURLE_FTP_PORT_FAILED
 352     {"CURLE_FTP_PORT_FAILED", CURLE_FTP_PORT_FAILED},
 353 #else
 354     {"CURLE_FTP_PORT_FAILED", -1},
 355 #endif
 356 #if HAVE_DECL_CURLE_FTP_COULDNT_USE_REST
 357     {"CURLE_FTP_COULDNT_USE_REST", CURLE_FTP_COULDNT_USE_REST},
 358 #else
 359     {"CURLE_FTP_COULDNT_USE_REST", -1},
 360 #endif
 361 #if HAVE_DECL_CURLE_FTP_COULDNT_GET_SIZE
 362     {"CURLE_FTP_COULDNT_GET_SIZE", CURLE_FTP_COULDNT_GET_SIZE},
 363 #else
 364     {"CURLE_FTP_COULDNT_GET_SIZE", -1},
 365 #endif
 366 #if HAVE_DECL_CURLE_HTTP_RANGE_ERROR
 367     {"CURLE_HTTP_RANGE_ERROR", CURLE_HTTP_RANGE_ERROR},
 368 #else
 369     {"CURLE_HTTP_RANGE_ERROR", -1},
 370 #endif
 371 #if HAVE_DECL_CURLE_HTTP_POST_ERROR
 372     {"CURLE_HTTP_POST_ERROR", CURLE_HTTP_POST_ERROR},
 373 #else
 374     {"CURLE_HTTP_POST_ERROR", -1},
 375 #endif
 376 #if HAVE_DECL_CURLE_SSL_CONNECT_ERROR
 377     {"CURLE_SSL_CONNECT_ERROR", CURLE_SSL_CONNECT_ERROR},
 378 #else
 379     {"CURLE_SSL_CONNECT_ERROR", -1},
 380 #endif
 381 #if HAVE_DECL_CURLE_FTP_BAD_DOWNLOAD_RESUME
 382     {"CURLE_FTP_BAD_DOWNLOAD_RESUME", CURLE_FTP_BAD_DOWNLOAD_RESUME},
 383 #else
 384     {"CURLE_FTP_BAD_DOWNLOAD_RESUME", -1},
 385 #endif
 386 #if HAVE_DECL_CURLE_FILE_COULDNT_READ_FILE
 387     {"CURLE_FILE_COULDNT_READ_FILE", CURLE_FILE_COULDNT_READ_FILE},
 388 #else
 389     {"CURLE_FILE_COULDNT_READ_FILE", -1},
 390 #endif
 391 #if HAVE_DECL_CURLE_LDAP_CANNOT_BIND
 392     {"CURLE_LDAP_CANNOT_BIND", CURLE_LDAP_CANNOT_BIND},
 393 #else
 394     {"CURLE_LDAP_CANNOT_BIND", -1},
 395 #endif
 396 #if HAVE_DECL_CURLE_LDAP_SEARCH_FAILED
 397     {"CURLE_LDAP_SEARCH_FAILED", CURLE_LDAP_SEARCH_FAILED},
 398 #else
 399     {"CURLE_LDAP_SEARCH_FAILED", -1},
 400 #endif
 401 #if HAVE_DECL_CURLE_LIBRARY_NOT_FOUND
 402     {"CURLE_LIBRARY_NOT_FOUND", CURLE_LIBRARY_NOT_FOUND},
 403 #else
 404     {"CURLE_LIBRARY_NOT_FOUND", -1},
 405 #endif
 406 #if HAVE_DECL_CURLE_FUNCTION_NOT_FOUND
 407     {"CURLE_FUNCTION_NOT_FOUND", CURLE_FUNCTION_NOT_FOUND},
 408 #else
 409     {"CURLE_FUNCTION_NOT_FOUND", -1},
 410 #endif
 411 #if HAVE_DECL_CURLE_ABORTED_BY_CALLBACK
 412     {"CURLE_ABORTED_BY_CALLBACK", CURLE_ABORTED_BY_CALLBACK},
 413 #else
 414     {"CURLE_ABORTED_BY_CALLBACK", -1},
 415 #endif
 416 #if HAVE_DECL_CURLE_BAD_FUNCTION_ARGUMENT
 417     {"CURLE_BAD_FUNCTION_ARGUMENT", CURLE_BAD_FUNCTION_ARGUMENT},
 418 #else
 419     {"CURLE_BAD_FUNCTION_ARGUMENT", -1},
 420 #endif
 421 #if HAVE_DECL_CURLE_BAD_CALLING_ORDER
 422     {"CURLE_BAD_CALLING_ORDER", CURLE_BAD_CALLING_ORDER},
 423 #else
 424     {"CURLE_BAD_CALLING_ORDER", -1},
 425 #endif
 426 #if HAVE_DECL_CURLE_HTTP_PORT_FAILED
 427     {"CURLE_HTTP_PORT_FAILED", CURLE_HTTP_PORT_FAILED},
 428 #else
 429     {"CURLE_HTTP_PORT_FAILED", -1},
 430 #endif
 431 #if HAVE_DECL_CURLE_BAD_PASSWORD_ENTERED
 432     {"CURLE_BAD_PASSWORD_ENTERED", CURLE_BAD_PASSWORD_ENTERED},
 433 #else
 434     {"CURLE_BAD_PASSWORD_ENTERED", -1},
 435 #endif
 436 #if HAVE_DECL_CURLE_TOO_MANY_REDIRECTS
 437     {"CURLE_TOO_MANY_REDIRECTS", CURLE_TOO_MANY_REDIRECTS},
 438 #else
 439     {"CURLE_TOO_MANY_REDIRECTS", -1},
 440 #endif
 441 #if HAVE_DECL_CURLE_UNKNOWN_TELNET_OPTION
 442     {"CURLE_UNKNOWN_TELNET_OPTION", CURLE_UNKNOWN_TELNET_OPTION},
 443 #else
 444     {"CURLE_UNKNOWN_TELNET_OPTION", -1},
 445 #endif
 446 #if HAVE_DECL_CURLE_TELNET_OPTION_SYNTAX
 447     {"CURLE_TELNET_OPTION_SYNTAX", CURLE_TELNET_OPTION_SYNTAX},
 448 #else
 449     {"CURLE_TELNET_OPTION_SYNTAX", -1},
 450 #endif
 451 #if HAVE_DECL_CURLE_SSL_PEER_CERTIFICATE
 452     {"CURLE_SSL_PEER_CERTIFICATE", CURLE_SSL_PEER_CERTIFICATE},
 453 #else
 454     {"CURLE_SSL_PEER_CERTIFICATE", -1},
 455 #endif
 456 #if HAVE_DECL_CURLE_GOT_NOTHING
 457     {"CURLE_GOT_NOTHING", CURLE_GOT_NOTHING},
 458 #else
 459     {"CURLE_GOT_NOTHING", -1},
 460 #endif
 461 #if HAVE_DECL_CURLE_SSL_ENGINE_NOT_FOUND
 462     {"CURLE_SSL_ENGINE_NOT_FOUND", CURLE_SSL_ENGINE_NOTFOUND},
 463 #else
 464     {"CURLE_SSL_ENGINE_NOT_FOUND", -1},
 465 #endif
 466 #if HAVE_DECL_CURLE_SSL_ENGINE_SET_FAILED
 467     {"CURLE_SSL_ENGINE_SET_FAILED", CURLE_SSL_ENGINE_SETFAILED},
 468 #else
 469     {"CURLE_SSL_ENGINE_SET_FAILED", -1},
 470 #endif
 471 #if HAVE_DECL_CURLE_SEND_ERROR
 472     {"CURLE_SEND_ERROR", CURLE_SEND_ERROR},
 473 #else
 474     {"CURLE_SEND_ERROR", -1},
 475 #endif
 476 #if HAVE_DECL_CURLE_RECV_ERROR
 477     {"CURLE_RECV_ERROR", CURLE_RECV_ERROR},
 478 #else
 479     {"CURLE_RECV_ERROR", -1},
 480 #endif
 481 #if HAVE_DECL_CURLE_SHARE_IN_USE
 482     {"CURLE_SHARE_IN_USE", CURLE_SHARE_IN_USE},
 483 #else
 484     {"CURLE_SHARE_IN_USE", -1},
 485 #endif
 486 #if HAVE_DECL_CURLE_SSL_CERTPROBLEM
 487     {"CURLE_SSL_CERTPROBLEN", CURLE_SSL_CERTPROBLEM},
 488 #else
 489     {"CURLE_SSL_CERTPROBLEN", -1},
 490 #endif
 491 #if HAVE_DECL_CURLE_SSL_CIPHER
 492     {"CURLE_SSL_CIPHER", CURLE_SSL_CIPHER},
 493 #else
 494     {"CURLE_SSL_CIPHER", -1},
 495 #endif
 496 #if HAVE_DECL_CURLE_SSL_CACERT
 497     {"CURLE_SSL_CACERT", CURLE_SSL_CACERT},
 498 #else
 499     {"CURLE_SSL_CACERT", -1},
 500 #endif
 501 #if HAVE_DECL_CURLE_BAD_CONTENT_ENCODING
 502     {"CURLE_BAD_CONTENT_ENCODING", CURLE_BAD_CONTENT_ENCODING},
 503 #else
 504     {"CURLE_BAD_CONTENT_ENCODING", -1},
 505 #endif
 506 #if HAVE_DECL_CURLE_LDAP_INVALID_URL
 507     {"CURLE_LDAP_INVALID_URL", CURLE_LDAP_INVALID_URL},
 508 #else
 509     {"CURLE_LDAP_INVALID_URL", -1},
 510 #endif
 511 #if HAVE_DECL_CURLE_FILESIZE_EXCEEDED
 512     {"CURLE_FILESIZE_EXCEEDED", CURLE_FILESIZE_EXCEEDED},
 513 #else
 514     {"CURLE_FILESIZE_EXCEEDED", -1},
 515 #endif
 516 #if HAVE_DECL_CURLE_FTP_SSL_FAILED
 517     {"CURLE_FTP_SSL_FAILED", CURLE_FTP_SSL_FAILED},
 518 #else
 519     {"CURLE_FTP_SSL_FAILED", -1},
 520 #endif
 521 #if HAVE_DECL_CURLE_SEND_FAIL_REWIND
 522     {"CURLE_SEND_FAIL_REWIND", CURLE_SEND_FAIL_REWIND},
 523 #else
 524     {"CURLE_SEND_FAIL_REWIND", -1},
 525 #endif
 526 #if HAVE_DECL_CURLE_SSL_ENGINE_INITFAILED
 527     {"CURLE_SSL_ENGINE_INITFAILED", CURLE_SSL_ENGINE_INITFAILED},
 528 #else
 529     {"CURLE_SSL_ENGINE_INITFAILED", -1},
 530 #endif
 531 #if HAVE_DECL_CURLE_LOGIN_DENIED
 532     {"CURLE_LOGIN_DENIED", CURLE_LOGIN_DENIED},
 533 #else
 534     {"CURLE_LOGIN_DENIED", -1},
 535 #endif
 536 #if HAVE_DECL_CURLE_TFTP_NOTFOUND
 537     {"CURLE_TFTP_NOTFOUND", CURLE_TFTP_NOTFOUND},
 538 #else
 539     {"CURLE_TFTP_NOTFOUND", -1},
 540 #endif
 541 #if HAVE_DECL_CURLE_TFTP_PERM
 542     {"CURLE_TFTP_PERM", CURLE_TFTP_PERM},
 543 #else
 544     {"CURLE_TFTP_PERM", -1},
 545 #endif
 546 #if HAVE_DECL_CURLE_REMOTE_DISK_FULL
 547     {"CURLE_REMOTE_DISK_FULL", CURLE_REMOTE_DISK_FULL},
 548 #else
 549     {"CURLE_REMOTE_DISK_FULL", -1},
 550 #endif
 551 #if HAVE_DECL_CURLE_TFTP_ILLEGAL
 552     {"CURLE_TFTP_ILLEGAL", CURLE_TFTP_ILLEGAL},
 553 #else
 554     {"CURLE_TFTP_ILLEGAL", -1},
 555 #endif
 556 #if HAVE_DECL_CURLE_TFTP_UNKNOWNID
 557     {"CURLE_TFTP_UNKNOWNID", CURLE_TFTP_UNKNOWNID},
 558 #else
 559     {"CURLE_TFTP_UNKNOWNID", -1},
 560 #endif
 561 #if HAVE_DECL_CURLE_REMOTE_FILE_EXISTS
 562     {"CURLE_REMOTE_FILE_EXISTS", CURLE_REMOTE_FILE_EXISTS},
 563 #else
 564     {"CURLE_REMOTE_FILE_EXISTS", -1},
 565 #endif
 566 #if HAVE_DECL_CURLE_TFTP_NOSUCHUSER
 567     {"CURLE_TFTP_NOSUCHUSER", CURLE_TFTP_NOSUCHUSER},
 568 #else
 569     {"CURLE_TFTP_NOSUCHUSER", -1},
 570 #endif
 571 #if HAVE_DECL_CURLE_CONV_FAILED
 572     {"CURLE_CONV_FAILED", CURLE_CONV_FAILED},
 573 #else
 574     {"CURLE_CONV_FAILED", -1},
 575 #endif
 576 #if HAVE_DECL_CURLE_CONV_REQUIRED
 577     {"CURLE_CONV_REQUIRED", CURLE_CONV_REQUIRED},
 578 #else
 579     {"CURLE_CONV_REQUIRED", -1},
 580 #endif
 581 #if HAVE_DECL_CURLE_SSL_CACERT_BADFILE
 582     {"CURLE_SSL_CACERT_BADFILE", CURLE_SSL_CACERT_BADFILE},
 583 #else
 584     {"CURLE_SSL_CACERT_BADFILE", -1},
 585 #endif
 586 #if HAVE_DECL_CURLE_REMOTE_FILE_NOT_FOUND
 587     {"CURLE_REMOTE_FILE_NOT_FOUND", CURLE_REMOTE_FILE_NOT_FOUND},
 588 #else
 589     {"CURLE_REMOTE_FILE_NOT_FOUND", -1},
 590 #endif
 591 #if HAVE_DECL_CURLE_SSH
 592     {"CURLE_SSH", CURLE_SSH},
 593 #else
 594     {"CURLE_SSH", -1},
 595 #endif
 596 #if HAVE_DECL_CURLE_SSL_SHUTDOWN_FAILED
 597     {"CURLE_SSL_SHUTDOWN_FAILED", CURLE_SSL_SHUTDOWN_FAILED},
 598 #else
 599     {"CURLE_SSL_SHUTDOWN_FAILED", -1},
 600 #endif
 601 #if HAVE_DECL_CURLE_AGAIN
 602     {"CURLE_AGAIN", CURLE_AGAIN},
 603 #else
 604     {"CURLE_AGAIN", -1},
 605 #endif
 606     {"CURLE_OK", CURLE_OK},
 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(3, 0);
 665
 666     Store_field(exceptionData, 0, Val_int(code));
 667     Store_field(exceptionData, 1, Val_int(code));
 668     Store_field(exceptionData, 2, copy_string(errorString));
 669
 670     if (conn != NULL && conn->curl_ERRORBUFFER != NULL)
 671     {
 672         Store_field(Field(conn->ocamlValues, Ocaml_ERRORBUFFER), 0,
 673                     copy_string(conn->curl_ERRORBUFFER));
 674     }
 675
 676     exception = caml_named_value("CurlException");
 677
 678     if (exception == NULL)
 679         caml_failwith("CurlException not registered");
 680
 681     raise_with_arg(*exception, exceptionData);
 682
 683     CAMLreturn0;
 684 }
 685
 686 static void resetOcamlValues(Connection* connection)
 687 {
 688     int i;
 689
 690     for (i = 0; i < OcamlValuesSize; i++)
 691         Store_field(connection->ocamlValues, i, Val_unit);
 692 }
 693
 694 static Connection* allocConnection(CURL* h)
 695 {
 696     Connection* connection = (Connection *)malloc(sizeof(Connection));
 697
 698     connection->ocamlValues = caml_alloc(OcamlValuesSize, 0);
 699     resetOcamlValues(connection);
 700     register_global_root(&connection->ocamlValues);
 701
 702     connection->connection = h;
 703
 704     connection->next = NULL;
 705     connection->prev = NULL;
 706
 707     if (connectionList.tail == NULL)
 708     {
 709         connectionList.tail = connection;
 710         connectionList.head = connection;
 711     }
 712     else
 713     {
 714         connection->prev = connectionList.head;
 715         connectionList.head->next = connection;
 716         connectionList.head = connection;
 717     }
 718
 719     connection->refcount = 0;
 720
 721     connection->curl_URL = NULL;
 722     connection->curl_PROXY = NULL;
 723     connection->curl_USERPWD = NULL;
 724     connection->curl_PROXYUSERPWD = NULL;
 725     connection->curl_RANGE = NULL;
 726     connection->curl_ERRORBUFFER = NULL;
 727     connection->curl_POSTFIELDS = NULL;
 728     connection->curl_POSTFIELDSIZE = -1;
 729     connection->curl_REFERER = NULL;
 730     connection->curl_USERAGENT = NULL;
 731     connection->curl_FTPPORT = NULL;
 732     connection->curl_COOKIE = NULL;
 733     connection->curl_HTTPHEADER = NULL;
 734     connection->httpPostBuffers = NULL;
 735     connection->httpPostFirst = NULL;
 736     connection->httpPostLast = NULL;
 737     connection->curl_SSLCERT = NULL;
 738     connection->curl_SSLCERTTYPE = NULL;
 739     connection->curl_SSLCERTPASSWD = NULL;
 740     connection->curl_SSLKEY = NULL;
 741     connection->curl_SSLKEYTYPE = NULL;
 742     connection->curl_SSLKEYPASSWD = NULL;
 743     connection->curl_SSLENGINE = NULL;
 744     connection->curl_QUOTE = NULL;
 745     connection->curl_POSTQUOTE = NULL;
 746     connection->curl_COOKIEFILE = NULL;
 747     connection->curl_CUSTOMREQUEST = NULL;
 748     connection->curl_INTERFACE = NULL;
 749     connection->curl_CAINFO = NULL;
 750     connection->curl_CAPATH = NULL;
 751     connection->curl_RANDOM_FILE = NULL;
 752     connection->curl_EGDSOCKET = NULL;
 753     connection->curl_COOKIEJAR = NULL;
 754     connection->curl_SSL_CIPHER_LIST = NULL;
 755     connection->curl_PRIVATE = NULL;
 756     connection->curl_HTTP200ALIASES = NULL;
 757     connection->curl_NETRC_FILE = NULL;
 758     connection->curl_FTP_ACCOUNT = NULL;
 759     connection->curl_COOKIELIST = NULL;
 760     connection->curl_FTP_ALTERNATIVE_TO_USER = NULL;
 761     connection->curl_SSH_PUBLIC_KEYFILE = NULL;
 762     connection->curl_SSH_PRIVATE_KEYFILE = NULL;
 763     connection->curl_COPYPOSTFIELDS = NULL;
 764     connection->curl_RESOLVE = NULL;
 765     connection->curl_DNS_SERVERS = NULL;
 766     connection->curl_MAIL_FROM = NULL;
 767     connection->curl_MAIL_RCPT = NULL;
 768
 769     return connection;
 770 }
 771
 772 static Connection *newConnection(void)
 773 {
 774     CURL* h;
 775
 776     caml_enter_blocking_section();
 777     h = curl_easy_init();
 778     caml_leave_blocking_section();
 779
 780     return allocConnection(h);
 781 }
 782
 783 static void free_if(void* p) { if (NULL != p) free(p); }
 784
 785 static void removeConnection(Connection *connection, int finalization)
 786 {
 787     const char* fin_url = NULL;
 788
 789     if (!connection->connection)
 790     {
 791       return; /* already cleaned up */
 792     }
 793
 794     if (finalization)
 795     {
 796       /* cannot engage OCaml runtime at finalization, just report leak */
 797       if (CURLE_OK != curl_easy_getinfo(connection->connection, CURLINFO_EFFECTIVE_URL, &fin_url) || NULL == fin_url)
 798       {
 799         fin_url = "unknown";
 800       }
 801       fprintf(stderr,"Curl: handle %p leaked, conn %p, url %s\n", connection->connection, connection, fin_url);
 802       fflush(stderr);
 803     }
 804     else
 805     {
 806       enter_blocking_section();
 807       curl_easy_cleanup(connection->connection);
 808       leave_blocking_section();
 809     }
 810
 811     connection->connection = NULL;
 812
 813     if (connectionList.tail == connection)
 814         connectionList.tail = connectionList.tail->next;
 815     if (connectionList.head == connection)
 816         connectionList.head = connectionList.head->prev;
 817
 818     if (connection->next != NULL)
 819         connection->next->prev = connection->prev;
 820     if (connection->prev != NULL)
 821         connection->prev->next = connection->next;
 822
 823     remove_global_root(&connection->ocamlValues);
 824
 825     free_if(connection->curl_URL);
 826     free_if(connection->curl_PROXY);
 827     free_if(connection->curl_USERPWD);
 828     free_if(connection->curl_PROXYUSERPWD);
 829     free_if(connection->curl_RANGE);
 830     free_if(connection->curl_ERRORBUFFER);
 831     free_if(connection->curl_POSTFIELDS);
 832     free_if(connection->curl_REFERER);
 833     free_if(connection->curl_USERAGENT);
 834     free_if(connection->curl_FTPPORT);
 835     free_if(connection->curl_COOKIE);
 836     free_curl_slist(connection->curl_HTTPHEADER);
 837     free_curl_slist(connection->httpPostBuffers);
 838     if (connection->httpPostFirst != NULL)
 839         curl_formfree(connection->httpPostFirst);
 840     free_curl_slist(connection->curl_RESOLVE);
 841     free_if(connection->curl_SSLCERT);
 842     free_if(connection->curl_SSLCERTTYPE);
 843     free_if(connection->curl_SSLCERTPASSWD);
 844     free_if(connection->curl_SSLKEY);
 845     free_if(connection->curl_SSLKEYTYPE);
 846     free_if(connection->curl_SSLKEYPASSWD);
 847     free_if(connection->curl_SSLENGINE);
 848     free_curl_slist(connection->curl_QUOTE);
 849     free_curl_slist(connection->curl_POSTQUOTE);
 850     free_if(connection->curl_COOKIEFILE);
 851     free_if(connection->curl_CUSTOMREQUEST);
 852     free_if(connection->curl_INTERFACE);
 853     free_if(connection->curl_CAINFO);
 854     free_if(connection->curl_CAPATH);
 855     free_if(connection->curl_RANDOM_FILE);
 856     free_if(connection->curl_EGDSOCKET);
 857     free_if(connection->curl_COOKIEJAR);
 858     free_if(connection->curl_SSL_CIPHER_LIST);
 859     free_if(connection->curl_PRIVATE);
 860     free_curl_slist(connection->curl_HTTP200ALIASES);
 861     free_if(connection->curl_NETRC_FILE);
 862     free_if(connection->curl_FTP_ACCOUNT);
 863     free_if(connection->curl_COOKIELIST);
 864     free_if(connection->curl_FTP_ALTERNATIVE_TO_USER);
 865     free_if(connection->curl_SSH_PUBLIC_KEYFILE);
 866     free_if(connection->curl_SSH_PRIVATE_KEYFILE);
 867     free_if(connection->curl_COPYPOSTFIELDS);
 868     free_if(connection->curl_DNS_SERVERS);
 869     free_if(connection->curl_MAIL_FROM);
 870     free_curl_slist(connection->curl_MAIL_RCPT);
 871 }
 872
 873 #if 1
 874 static void checkConnection(Connection * connection)
 875 {
 876   (void)connection;
 877 }
 878 #else
 879 static void checkConnection(Connection *connection)
 880 {
 881     Connection *listIter;
 882
 883     listIter = connectionList.tail;
 884
 885     while (listIter != NULL)
 886     {
 887         if (listIter == connection)
 888             return;
 889
 890         listIter = listIter->next;
 891     }
 892
 893     failwith("Invalid Connection");
 894 }
 895 #endif
 896
 897 static Connection* findConnection(CURL* h)
 898 {
 899     Connection *listIter;
 900
 901     listIter = connectionList.tail;
 902
 903     while (listIter != NULL)
 904     {
 905         if (listIter->connection == h)
 906             return listIter;
 907
 908         listIter = listIter->next;
 909     }
 910
 911     failwith("Unknown handle");
 912 }
 913
 914 void op_curl_easy_finalize(value v)
 915 {
 916   Connection* conn = Connection_val(v);
 917   /* same connection may be referenced by several different
 918      OCaml values, see e.g. caml_curl_multi_remove_finished */
 919   conn->refcount--;
 920   if (0 == conn->refcount)
 921   {
 922     removeConnection(conn, 1);
 923     free(conn);
 924   }
 925 }
 926
 927 int op_curl_easy_compare(value v1, value v2)
 928 {
 929   size_t p1 = (size_t)Connection_val(v1);
 930   size_t p2 = (size_t)Connection_val(v2);
 931   return (p1 == p2 ? 0 : (p1 > p2 ? 1 : -1)); /* compare addresses */
 932 }
 933
 934 intnat op_curl_easy_hash(value v)
 935 {
 936   return (size_t)Connection_val(v); /* address */
 937 }
 938
 939 static struct custom_operations curl_easy_ops = {
 940   "ygrek.curl_easy",
 941   op_curl_easy_finalize,
 942   op_curl_easy_compare,
 943   op_curl_easy_hash,
 944   custom_serialize_default,
 945   custom_deserialize_default,
 946 #if defined(custom_compare_ext_default)
 947   custom_compare_ext_default,
 948 #endif
 949 };
 950
 951 value caml_curl_alloc(Connection* conn)
 952 {
 953   value v = caml_alloc_custom(&curl_easy_ops, sizeof(Connection*), 0, 1);
 954   Connection_val(v) = conn;
 955   conn->refcount++;
 956   return v;
 957 }
 958
 959 #define WRAP_DATA_CALLBACK(name) \
 960 static size_t cb_##name(char *ptr, size_t size, size_t nmemb, void *data)\
 961 {\
 962     size_t result;\
 963     leave_blocking_section();\
 964     result = cb_##name##_nolock(ptr,size,nmemb,data);\
 965     enter_blocking_section();\
 966     return result;\
 967 }
 968
 969 static size_t cb_WRITEFUNCTION_nolock(char *ptr, size_t size, size_t nmemb, void *data)
 970 {
 971     CAMLparam0();
 972     CAMLlocal2(result, str);
 973     Connection *conn = (Connection *)data;
 974     size_t i;
 975
 976     checkConnection(conn);
 977
 978     str = alloc_string(size*nmemb);
 979
 980     for (i = 0; i < size*nmemb; i++)
 981         Byte(str, i) = ptr[i];
 982
 983     result = callback_exn(Field(conn->ocamlValues, Ocaml_WRITEFUNCTION), str);
 984
 985     CAMLreturnT(size_t, Is_exception_result(result) ? 0 : Int_val(result));
 986 }
 987
 988 WRAP_DATA_CALLBACK( WRITEFUNCTION)
 989
 990 static size_t cb_READFUNCTION_nolock(void *ptr, size_t size, size_t nmemb, void *data)
 991 {
 992     CAMLparam0();
 993     CAMLlocal1(result);
 994     Connection *conn = (Connection *)data;
 995     size_t length;
 996
 997     checkConnection(conn);
 998
 999     result = callback_exn(Field(conn->ocamlValues, Ocaml_READFUNCTION),
1000                       Val_int(size*nmemb));
1001
1002     if (Is_exception_result(result))
1003     {
1004       CAMLreturnT(size_t,CURL_READFUNC_ABORT);
1005     }
1006
1007     length = string_length(result);
1008
1009     if (length <= size*nmemb)
1010     {
1011       memcpy(ptr, String_val(result), length);
1012
1013       CAMLreturnT(size_t,length);
1014     }
1015     else
1016     {
1017       CAMLreturnT(size_t,CURL_READFUNC_ABORT);
1018     }
1019 }
1020
1021 WRAP_DATA_CALLBACK( READFUNCTION)
1022
1023 static size_t cb_HEADERFUNCTION_nolock(char *ptr, size_t size, size_t nmemb, void *data)
1024 {
1025     CAMLparam0();
1026     CAMLlocal2(result,str);
1027     Connection *conn = (Connection *)data;
1028     size_t i;
1029
1030     checkConnection(conn);
1031
1032     str = alloc_string(size*nmemb);
1033
1034     for (i = 0; i < size*nmemb; i++)
1035         Byte(str, i) = ptr[i];
1036
1037     result = callback_exn(Field(conn->ocamlValues, Ocaml_HEADERFUNCTION), str);
1038
1039     CAMLreturnT(size_t, Is_exception_result(result) ? 0 : Int_val(result));
1040 }
1041
1042 WRAP_DATA_CALLBACK( HEADERFUNCTION)
1043
1044 static int cb_PROGRESSFUNCTION_nolock(void *data,
1045                             double dlTotal,
1046                             double dlNow,
1047                             double ulTotal,
1048                             double ulNow)
1049 {
1050     CAMLparam0();
1051     CAMLlocal1(result);
1052     CAMLlocalN(callbackData, 4);
1053     Connection *conn = (Connection *)data;
1054
1055     checkConnection(conn);
1056
1057     callbackData[0] = copy_double(dlTotal);
1058     callbackData[1] = copy_double(dlNow);
1059     callbackData[2] = copy_double(ulTotal);
1060     callbackData[3] = copy_double(ulNow);
1061
1062     result = callbackN_exn(Field(conn->ocamlValues, Ocaml_PROGRESSFUNCTION),
1063                        4, callbackData);
1064
1065     CAMLreturnT(int, Is_exception_result(result) ? 1 : Bool_val(result));
1066 }
1067
1068 static int cb_PROGRESSFUNCTION(void *data,
1069                             double dlTotal,
1070                             double dlNow,
1071                             double ulTotal,
1072                             double ulNow)
1073 {
1074   int r;
1075   leave_blocking_section();
1076   r = cb_PROGRESSFUNCTION_nolock(data,dlTotal,dlNow,ulTotal,ulNow);
1077   enter_blocking_section();
1078   return r;
1079 }
1080
1081 static int cb_DEBUGFUNCTION_nolock(CURL *debugConnection,
1082                          curl_infotype infoType,
1083                          char *buffer,
1084                          size_t bufferLength,
1085                          void *data)
1086 {
1087     CAMLparam0();
1088     CAMLlocal3(camlDebugConnection, camlInfoType, camlMessage);
1089     size_t i;
1090     Connection *conn = (Connection *)data;
1091     (void)debugConnection; /* not used */
1092
1093     checkConnection(conn);
1094
1095     camlDebugConnection = (value)conn;
1096     camlInfoType = Val_long(infoType);
1097     camlMessage = alloc_string(bufferLength);
1098
1099     for (i = 0; i < bufferLength; i++)
1100         Byte(camlMessage, i) = buffer[i];
1101
1102     callback3_exn(Field(conn->ocamlValues, Ocaml_DEBUGFUNCTION),
1103               camlDebugConnection,
1104               camlInfoType,
1105               camlMessage);
1106
1107     CAMLreturnT(int, 0);
1108 }
1109
1110 static int cb_DEBUGFUNCTION(CURL *debugConnection,
1111                          curl_infotype infoType,
1112                          char *buffer,
1113                          size_t bufferLength,
1114                          void *data)
1115 {
1116   int r;
1117   leave_blocking_section();
1118   r = cb_DEBUGFUNCTION_nolock(debugConnection, infoType, buffer, bufferLength, data);
1119   enter_blocking_section();
1120   return r;
1121 }
1122
1123 static curlioerr cb_IOCTLFUNCTION_nolock(CURL *ioctl,
1124                                int cmd,
1125                                void *data)
1126 {
1127     CAMLparam0();
1128     CAMLlocal3(camlResult, camlConnection, camlCmd);
1129     Connection *conn = (Connection *)data;
1130     curlioerr result = CURLIOE_OK;
1131     (void)ioctl; /* not used */
1132
1133     checkConnection(conn);
1134
1135     if (cmd == CURLIOCMD_NOP)
1136         camlCmd = Val_long(0);
1137     else if (cmd == CURLIOCMD_RESTARTREAD)
1138         camlCmd = Val_long(1);
1139     else
1140         failwith("Invalid IOCTL Cmd!");
1141
1142     camlConnection = caml_curl_alloc(conn);
1143
1144     camlResult = callback2_exn(Field(conn->ocamlValues, Ocaml_IOCTLFUNCTION),
1145                            camlConnection,
1146                            camlCmd);
1147
1148     if (Is_exception_result(camlResult))
1149     {
1150       result = CURLIOE_FAILRESTART;
1151     }
1152     else
1153     switch (Long_val(camlResult))
1154     {
1155     case 0: /* CURLIOE_OK */
1156         result = CURLIOE_OK;
1157         break;
1158
1159     case 1: /* CURLIOE_UNKNOWNCMD */
1160         result = CURLIOE_UNKNOWNCMD;
1161         break;
1162
1163     case 2: /* CURLIOE_FAILRESTART */
1164         result = CURLIOE_FAILRESTART;
1165         break;
1166
1167     default: /* Incorrect return value, but let's handle it */
1168         result = CURLIOE_FAILRESTART;
1169         break;
1170     }
1171
1172     CAMLreturnT(curlioerr, result);
1173 }
1174
1175 static curlioerr cb_IOCTLFUNCTION(CURL *ioctl,
1176                                int cmd,
1177                                void *data)
1178 {
1179   curlioerr r;
1180   leave_blocking_section();
1181   r = cb_IOCTLFUNCTION_nolock(ioctl, cmd, data);
1182   enter_blocking_section();
1183   return r;
1184 }
1185
1186 #if HAVE_DECL_CURLOPT_SEEKFUNCTION
1187 static int cb_SEEKFUNCTION_nolock(void *data,
1188                         curl_off_t offset,
1189                         int origin)
1190 {
1191     CAMLparam0();
1192     CAMLlocal3(camlResult, camlOffset, camlOrigin);
1193     Connection *conn = (Connection *)data;
1194
1195     camlOffset = copy_int64(offset);
1196
1197     if (origin == SEEK_SET)
1198         camlOrigin = Val_long(0);
1199     else if (origin == SEEK_CUR)
1200         camlOrigin = Val_long(1);
1201     else if (origin == SEEK_END)
1202         camlOrigin = Val_long(2);
1203     else
1204         failwith("Invalid seek code");
1205
1206     camlResult = callback2_exn(Field(conn->ocamlValues,
1207                                  Ocaml_SEEKFUNCTION),
1208                            camlOffset,
1209                            camlOrigin);
1210
1211     int result;
1212     if (Is_exception_result(camlResult))
1213       result = CURL_SEEKFUNC_FAIL;
1214     else
1215     switch (Int_val(camlResult))
1216     {
1217       case 0: result = CURL_SEEKFUNC_OK; break;
1218       case 1: result = CURL_SEEKFUNC_FAIL; break;
1219       case 2: result = CURL_SEEKFUNC_CANTSEEK; break;
1220       default: failwith("Invalid seek result");
1221     }
1222
1223     CAMLreturnT(int, result);
1224 }
1225
1226 static int cb_SEEKFUNCTION(void *data,
1227                         curl_off_t offset,
1228                         int origin)
1229 {
1230   int r;
1231   leave_blocking_section();
1232   r = cb_SEEKFUNCTION_nolock(data,offset,origin);
1233   enter_blocking_section();
1234   return r;
1235 }
1236
1237 #endif
1238
1239 #if HAVE_DECL_CURLOPT_OPENSOCKETFUNCTION
1240 static int cb_OPENSOCKETFUNCTION_nolock(void *data,
1241                         curlsocktype purpose,
1242                         struct curl_sockaddr *addr)
1243 {
1244     CAMLparam0();
1245     CAMLlocal1(result);
1246     Connection *conn = (Connection *)data;
1247     int sock = -1;
1248     (void)purpose; /* not used */
1249
1250     sock = socket(addr->family, addr->socktype, addr->protocol);
1251
1252     if (-1 != sock)
1253     {
1254       /* FIXME windows */
1255       result = callback_exn(Field(conn->ocamlValues, Ocaml_OPENSOCKETFUNCTION), Val_int(sock));
1256       if (Is_exception_result(result))
1257       {
1258         close(sock);
1259         sock = -1;
1260       }
1261     }
1262
1263     CAMLreturnT(int, (sock == -1) ? CURL_SOCKET_BAD : sock);
1264 }
1265
1266 static int cb_OPENSOCKETFUNCTION(void *data,
1267                         curlsocktype purpose,
1268                         struct curl_sockaddr *address)
1269 {
1270   int r;
1271   leave_blocking_section();
1272   r = cb_OPENSOCKETFUNCTION_nolock(data,purpose,address);
1273   enter_blocking_section();
1274   return r;
1275 }
1276
1277 #endif
1278
1279 /**
1280  **  curl_global_init helper function
1281  **/
1282
1283 CAMLprim value helper_curl_global_init(value initOption)
1284 {
1285     CAMLparam1(initOption);
1286
1287     switch (Long_val(initOption))
1288     {
1289     case 0: /* CURLINIT_GLOBALALL */
1290         CAMLreturn(Val_long(curl_global_init(CURL_GLOBAL_ALL)));
1291         break;
1292
1293     case 1: /* CURLINIT_GLOBALSSL */
1294         CAMLreturn(Val_long(curl_global_init(CURL_GLOBAL_SSL)));
1295         break;
1296
1297     case 2: /* CURLINIT_GLOBALWIN32 */
1298         CAMLreturn(Val_long(curl_global_init(CURL_GLOBAL_WIN32)));
1299         break;
1300
1301     case 3: /* CURLINIT_GLOBALNOTHING */
1302         CAMLreturn(Val_long(curl_global_init(CURL_GLOBAL_NOTHING)));
1303         break;
1304
1305     default:
1306         failwith("Invalid Initialization Option");
1307         break;
1308     }
1309
1310     /* Keep compiler happy, we should never get here due to failwith() */
1311     CAMLreturn(Val_unit);
1312 }
1313
1314 /**
1315  **  curl_global_cleanup helper function
1316  **/
1317
1318 CAMLprim value helper_curl_global_cleanup(void)
1319 {
1320     CAMLparam0();
1321
1322     curl_global_cleanup();
1323
1324     CAMLreturn(Val_unit);
1325 }
1326
1327 /**
1328  ** curl_easy_init helper function
1329  **/
1330 CAMLprim value helper_curl_easy_init(void)
1331 {
1332     CAMLparam0();
1333     CAMLlocal1(result);
1334
1335     result = caml_curl_alloc(newConnection());
1336
1337     CAMLreturn(result);
1338 }
1339
1340 CAMLprim value helper_curl_easy_reset(value conn)
1341 {
1342     CAMLparam1(conn);
1343     Connection *connection = Connection_val(conn);
1344
1345     checkConnection(connection);
1346     curl_easy_reset(connection->connection);
1347     resetOcamlValues(connection);
1348
1349     CAMLreturn(Val_unit);
1350 }
1351
1352 /**
1353  **  curl_easy_setopt helper utility functions
1354  **/
1355
1356 #define SETOPT_FUNCTION(name) \
1357 static void handle_##name##FUNCTION(Connection *conn, value option) \
1358 { \
1359     CAMLparam1(option); \
1360     CURLcode result = CURLE_OK; \
1361     Store_field(conn->ocamlValues, Ocaml_##name##FUNCTION, option); \
1362     result = curl_easy_setopt(conn->connection, CURLOPT_##name##FUNCTION, cb_##name##FUNCTION); \
1363     if (result != CURLE_OK) raiseError(conn, result); \
1364     result = curl_easy_setopt(conn->connection, CURLOPT_##name##DATA, conn); \
1365     if (result != CURLE_OK) raiseError(conn, result); \
1366     CAMLreturn0; \
1367 }
1368
1369 SETOPT_FUNCTION( WRITE)
1370 SETOPT_FUNCTION( READ)
1371 SETOPT_FUNCTION( HEADER)
1372 SETOPT_FUNCTION( PROGRESS)
1373 SETOPT_FUNCTION( DEBUG)
1374
1375 #if HAVE_DECL_CURLOPT_SEEKFUNCTION
1376 SETOPT_FUNCTION( SEEK)
1377 #endif
1378
1379 #if HAVE_DECL_CURLOPT_IOCTLFUNCTION
1380 SETOPT_FUNCTION( IOCTL)
1381 #endif
1382
1383 #if HAVE_DECL_CURLOPT_OPENSOCKETFUNCTION
1384 SETOPT_FUNCTION( OPENSOCKET)
1385 #endif
1386
1387 static void handle_slist(Connection *conn, struct curl_slist** slist, OcamlValue caml_option, CURLoption curl_option, value option)
1388 {
1389     CAMLparam1(option);
1390     CURLcode result = CURLE_OK;
1391
1392     Store_field(conn->ocamlValues, caml_option, option);
1393
1394     free_curl_slist(*slist);
1395     *slist = NULL;
1396
1397     while (Val_emptylist != option)
1398     {
1399         *slist = curl_slist_append(*slist, String_val(Field(option, 0)));
1400
1401         option = Field(option, 1);
1402     }
1403
1404     result = curl_easy_setopt(conn->connection, curl_option, *slist);
1405
1406     if (result != CURLE_OK)
1407         raiseError(conn, result);
1408
1409     CAMLreturn0;
1410 }
1411
1412 #define SETOPT_STRING(name) \
1413 static void handle_##name(Connection *conn, value option) \
1414 { \
1415     CAMLparam1(option); \
1416     CURLcode result = CURLE_OK; \
1417 \
1418     Store_field(conn->ocamlValues, Ocaml_##name, option); \
1419 \
1420     if (conn->curl_##name != NULL) \
1421         free(conn->curl_##name); \
1422 \
1423     conn->curl_##name = strdup(String_val(option)); \
1424 \
1425     result = curl_easy_setopt(conn->connection, CURLOPT_##name, conn->curl_##name); \
1426 \
1427     if (result != CURLE_OK) \
1428         raiseError(conn, result); \
1429 \
1430     CAMLreturn0; \
1431 }
1432
1433 #define SETOPT_VAL_(func_name, curl_option, conv_val) \
1434 static void func_name(Connection *conn, value option) \
1435 { \
1436     CAMLparam1(option); \
1437     CURLcode result = CURLE_OK; \
1438 \
1439     result = curl_easy_setopt(conn->connection, curl_option, conv_val(option)); \
1440 \
1441     if (result != CURLE_OK) \
1442         raiseError(conn, result); \
1443 \
1444     CAMLreturn0; \
1445 }
1446
1447 #define SETOPT_VAL(name, conv) SETOPT_VAL_(handle_##name, CURLOPT_##name, conv)
1448 #define SETOPT_BOOL(name) SETOPT_VAL(name, Bool_val)
1449 #define SETOPT_LONG(name) SETOPT_VAL(name, Long_val)
1450 #define SETOPT_INT64(name) SETOPT_VAL(name, Int64_val)
1451
1452 #define SETOPT_SLIST(name) \
1453 static void handle_##name(Connection* conn, value option) \
1454 { \
1455   handle_slist(conn,&(conn->curl_##name),Ocaml_##name,CURLOPT_##name,option); \
1456 }
1457
1458 SETOPT_STRING( URL)
1459 SETOPT_LONG( INFILESIZE)
1460 SETOPT_STRING( PROXY)
1461 SETOPT_LONG( PROXYPORT)
1462 SETOPT_BOOL( HTTPPROXYTUNNEL)
1463 SETOPT_BOOL( VERBOSE)
1464 SETOPT_BOOL( HEADER)
1465 SETOPT_BOOL( NOPROGRESS)
1466
1467 #if HAVE_DECL_CURLOPT_NOSIGNAL
1468 SETOPT_BOOL( NOSIGNAL)
1469 #endif
1470
1471 SETOPT_BOOL( NOBODY)
1472 SETOPT_BOOL( FAILONERROR)
1473 SETOPT_BOOL( UPLOAD)
1474 SETOPT_BOOL( POST)
1475 SETOPT_BOOL( FTPLISTONLY)
1476 SETOPT_BOOL( FTPAPPEND)
1477
1478
1479 static void handle_NETRC(Connection *conn, value option)
1480 {
1481     CAMLparam1(option);
1482     CURLcode result = CURLE_OK;
1483     long netrc;
1484
1485     switch (Long_val(option))
1486     {
1487     case 0: /* CURL_NETRC_OPTIONAL */
1488         netrc = CURL_NETRC_OPTIONAL;
1489         break;
1490
1491     case 1:/* CURL_NETRC_IGNORED */
1492         netrc = CURL_NETRC_IGNORED;
1493         break;
1494
1495     case 2: /* CURL_NETRC_REQUIRED */
1496         netrc = CURL_NETRC_REQUIRED;
1497         break;
1498
1499     default:
1500         failwith("Invalid NETRC Option");
1501         break;
1502     }
1503
1504     result = curl_easy_setopt(conn->connection,
1505                               CURLOPT_NETRC,
1506                               netrc);
1507
1508     if (result != CURLE_OK)
1509         raiseError(conn, result);
1510
1511     CAMLreturn0;
1512 }
1513
1514 #if HAVE_DECL_CURLOPT_ENCODING
1515 static void handle_ENCODING(Connection *conn, value option)
1516 {
1517     CAMLparam1(option);
1518     CURLcode result = CURLE_OK;
1519
1520     switch (Long_val(option))
1521     {
1522     case 0: /* CURL_ENCODING_NONE */
1523         result = curl_easy_setopt(conn->connection,
1524                                   CURLOPT_ENCODING,
1525                                   "identity");
1526         break;
1527
1528     case 1: /* CURL_ENCODING_DEFLATE */
1529         result = curl_easy_setopt(conn->connection,
1530                                   CURLOPT_ENCODING,
1531                                   "deflate");
1532         break;
1533
1534     case 2: /* CURL_ENCODING_GZIP */
1535         result = curl_easy_setopt(conn->connection,
1536                                   CURLOPT_ENCODING,
1537                                   "gzip");
1538         break;
1539
1540     case 3: /* CURL_ENCODING_ANY */
1541         result = curl_easy_setopt(conn->connection,
1542                                   CURLOPT_ENCODING,
1543                                   "");
1544         break;
1545
1546     default:
1547         failwith("Invalid Encoding Option");
1548         break;
1549     }
1550
1551     if (result != CURLE_OK)
1552         raiseError(conn, result);
1553
1554     CAMLreturn0;
1555 }
1556 #endif
1557
1558
1559 SETOPT_BOOL( FOLLOWLOCATION)
1560 SETOPT_BOOL( TRANSFERTEXT)
1561 SETOPT_BOOL( PUT)
1562 SETOPT_STRING( USERPWD)
1563 SETOPT_STRING( PROXYUSERPWD)
1564 SETOPT_STRING( RANGE)
1565
1566 static void handle_ERRORBUFFER(Connection *conn, value option)
1567 {
1568     CAMLparam1(option);
1569     CURLcode result = CURLE_OK;
1570
1571     Store_field(conn->ocamlValues, Ocaml_ERRORBUFFER, option);
1572
1573     if (conn->curl_ERRORBUFFER != NULL)
1574         free(conn->curl_ERRORBUFFER);
1575
1576     conn->curl_ERRORBUFFER = malloc(sizeof(char) * CURL_ERROR_SIZE);
1577
1578     result = curl_easy_setopt(conn->connection,
1579                               CURLOPT_ERRORBUFFER,
1580                               conn->curl_ERRORBUFFER);
1581
1582     if (result != CURLE_OK)
1583         raiseError(conn, result);
1584
1585     CAMLreturn0;
1586 }
1587
1588 SETOPT_LONG( TIMEOUT)
1589
1590 static void handle_POSTFIELDS(Connection *conn, value option)
1591 {
1592     CAMLparam1(option);
1593     CURLcode result = CURLE_OK;
1594
1595     Store_field(conn->ocamlValues, Ocaml_POSTFIELDS, option);
1596
1597     if (conn->curl_POSTFIELDS != NULL)
1598         free(conn->curl_POSTFIELDS);
1599
1600     conn->curl_POSTFIELDS = strdup_ml(option);
1601
1602     result = curl_easy_setopt(conn->connection,
1603                               CURLOPT_POSTFIELDS,
1604                               conn->curl_POSTFIELDS);
1605
1606     if (result != CURLE_OK)
1607         raiseError(conn, result);
1608
1609     CAMLreturn0;
1610 }
1611
1612 SETOPT_LONG( POSTFIELDSIZE)
1613 SETOPT_STRING( REFERER)
1614 SETOPT_STRING( USERAGENT)
1615 SETOPT_STRING( FTPPORT)
1616 SETOPT_LONG( LOW_SPEED_LIMIT)
1617 SETOPT_LONG( LOW_SPEED_TIME)
1618 SETOPT_LONG( RESUME_FROM)
1619 SETOPT_STRING( COOKIE)
1620
1621 SETOPT_SLIST( HTTPHEADER)
1622
1623 static void handle_HTTPPOST(Connection *conn, value option)
1624 {
1625     CAMLparam1(option);
1626     CAMLlocal3(listIter, formItem, contentType);
1627     CURLcode result = CURLE_OK;
1628
1629     listIter = option;
1630
1631     Store_field(conn->ocamlValues, Ocaml_HTTPPOST, option);
1632
1633     free_curl_slist(conn->httpPostBuffers);
1634     if (conn->httpPostFirst != NULL)
1635         curl_formfree(conn->httpPostFirst);
1636
1637     conn->httpPostBuffers = NULL;
1638     conn->httpPostFirst = NULL;
1639     conn->httpPostLast = NULL;
1640
1641     while (!Is_long(listIter))
1642     {
1643         formItem = Field(listIter, 0);
1644
1645         switch (Tag_val(formItem))
1646         {
1647         case 0: /* CURLFORM_CONTENT */
1648             if (Wosize_val(formItem) < 3)
1649             {
1650                 failwith("Incorrect CURLFORM_CONTENT parameters");
1651             }
1652
1653             if (Is_long(Field(formItem, 2)) &&
1654                 Long_val(Field(formItem, 2)) == 0)
1655             {
1656                 curl_formadd(&conn->httpPostFirst,
1657                              &conn->httpPostLast,
1658                              CURLFORM_COPYNAME,
1659                              String_val(Field(formItem, 0)),
1660                              CURLFORM_NAMELENGTH,
1661                              string_length(Field(formItem, 0)),
1662                              CURLFORM_COPYCONTENTS,
1663                              String_val(Field(formItem, 1)),
1664                              CURLFORM_CONTENTSLENGTH,
1665                              string_length(Field(formItem, 1)),
1666                              CURLFORM_END);
1667             }
1668             else if (Is_block(Field(formItem, 2)))
1669             {
1670                 contentType = Field(formItem, 2);
1671
1672                 curl_formadd(&conn->httpPostFirst,
1673                              &conn->httpPostLast,
1674                              CURLFORM_COPYNAME,
1675                              String_val(Field(formItem, 0)),
1676                              CURLFORM_NAMELENGTH,
1677                              string_length(Field(formItem, 0)),
1678                              CURLFORM_COPYCONTENTS,
1679                              String_val(Field(formItem, 1)),
1680                              CURLFORM_CONTENTSLENGTH,
1681                              string_length(Field(formItem, 1)),
1682                              CURLFORM_CONTENTTYPE,
1683                              String_val(Field(contentType, 0)),
1684                              CURLFORM_END);
1685             }
1686             else
1687             {
1688                 failwith("Incorrect CURLFORM_CONTENT parameters");
1689             }
1690             break;
1691
1692         case 1: /* CURLFORM_FILECONTENT */
1693             if (Wosize_val(formItem) < 3)
1694             {
1695                 failwith("Incorrect CURLFORM_FILECONTENT parameters");
1696             }
1697
1698             if (Is_long(Field(formItem, 2)) &&
1699                 Long_val(Field(formItem, 2)) == 0)
1700             {
1701                 curl_formadd(&conn->httpPostFirst,
1702                              &conn->httpPostLast,
1703                              CURLFORM_COPYNAME,
1704                              String_val(Field(formItem, 0)),
1705                              CURLFORM_NAMELENGTH,
1706                              string_length(Field(formItem, 0)),
1707                              CURLFORM_FILECONTENT,
1708                              String_val(Field(formItem, 1)),
1709                              CURLFORM_END);
1710             }
1711             else if (Is_block(Field(formItem, 2)))
1712             {
1713                 contentType = Field(formItem, 2);
1714
1715                 curl_formadd(&conn->httpPostFirst,
1716                              &conn->httpPostLast,
1717                              CURLFORM_COPYNAME,
1718                              String_val(Field(formItem, 0)),
1719                              CURLFORM_NAMELENGTH,
1720                              string_length(Field(formItem, 0)),
1721                              CURLFORM_FILECONTENT,
1722                              String_val(Field(formItem, 1)),
1723                              CURLFORM_CONTENTTYPE,
1724                              String_val(Field(contentType, 0)),
1725                              CURLFORM_END);
1726             }
1727             else
1728             {
1729                 failwith("Incorrect CURLFORM_FILECONTENT parameters");
1730             }
1731             break;
1732
1733         case 2: /* CURLFORM_FILE */
1734             if (Wosize_val(formItem) < 3)
1735             {
1736                 failwith("Incorrect CURLFORM_FILE parameters");
1737             }
1738
1739             if (Is_long(Field(formItem, 2)) &&
1740                 Long_val(Field(formItem, 2)) == 0)
1741             {
1742                 curl_formadd(&conn->httpPostFirst,
1743                              &conn->httpPostLast,
1744                              CURLFORM_COPYNAME,
1745                              String_val(Field(formItem, 0)),
1746                              CURLFORM_NAMELENGTH,
1747                              string_length(Field(formItem, 0)),
1748                              CURLFORM_FILE,
1749                              String_val(Field(formItem, 1)),
1750                              CURLFORM_END);
1751             }
1752             else if (Is_block(Field(formItem, 2)))
1753             {
1754                 contentType = Field(formItem, 2);
1755
1756                 curl_formadd(&conn->httpPostFirst,
1757                              &conn->httpPostLast,
1758                              CURLFORM_COPYNAME,
1759                              String_val(Field(formItem, 0)),
1760                              CURLFORM_NAMELENGTH,
1761                              string_length(Field(formItem, 0)),
1762                              CURLFORM_FILE,
1763                              String_val(Field(formItem, 1)),
1764                              CURLFORM_CONTENTTYPE,
1765                              String_val(Field(contentType, 0)),
1766                              CURLFORM_END);
1767             }
1768             else
1769             {
1770                 failwith("Incorrect CURLFORM_FILE parameters");
1771             }
1772             break;
1773
1774         case 3: /* CURLFORM_BUFFER */
1775             if (Wosize_val(formItem) < 4)
1776             {
1777                 failwith("Incorrect CURLFORM_BUFFER parameters");
1778             }
1779
1780             if (Is_long(Field(formItem, 3)) &&
1781                 Long_val(Field(formItem, 3)) == 0)
1782             {
1783                 conn->httpPostBuffers = curl_slist_prepend_ml(conn->httpPostBuffers, Field(formItem, 2));
1784
1785                 curl_formadd(&conn->httpPostFirst,
1786                              &conn->httpPostLast,
1787                              CURLFORM_COPYNAME,
1788                              String_val(Field(formItem, 0)),
1789                              CURLFORM_NAMELENGTH,
1790                              string_length(Field(formItem, 0)),
1791                              CURLFORM_BUFFER,
1792                              String_val(Field(formItem, 1)),
1793                              CURLFORM_BUFFERPTR,
1794                              conn->httpPostBuffers->data,
1795                              CURLFORM_BUFFERLENGTH,
1796                              string_length(Field(formItem, 2)),
1797                              CURLFORM_END);
1798             }
1799             else if (Is_block(Field(formItem, 3)))
1800             {
1801                 conn->httpPostBuffers = curl_slist_prepend_ml(conn->httpPostBuffers, Field(formItem, 2));
1802
1803                 contentType = Field(formItem, 3);
1804
1805                 curl_formadd(&conn->httpPostFirst,
1806                              &conn->httpPostLast,
1807                              CURLFORM_COPYNAME,
1808                              String_val(Field(formItem, 0)),
1809                              CURLFORM_NAMELENGTH,
1810                              string_length(Field(formItem, 0)),
1811                              CURLFORM_BUFFER,
1812                              String_val(Field(formItem, 1)),
1813                              CURLFORM_BUFFERPTR,
1814                              conn->httpPostBuffers->data,
1815                              CURLFORM_BUFFERLENGTH,
1816                              string_length(Field(formItem, 2)),
1817                              CURLFORM_CONTENTTYPE,
1818                              String_val(Field(contentType, 0)),
1819                              CURLFORM_END);
1820             }
1821             else
1822             {
1823                 failwith("Incorrect CURLFORM_BUFFER parameters");
1824             }
1825             break;
1826         }
1827
1828         listIter = Field(listIter, 1);
1829     }
1830
1831     result = curl_easy_setopt(conn->connection,
1832                               CURLOPT_HTTPPOST,
1833                               conn->httpPostFirst);
1834
1835     if (result != CURLE_OK)
1836         raiseError(conn, result);
1837
1838     CAMLreturn0;
1839 }
1840
1841 SETOPT_STRING( SSLCERT)
1842 SETOPT_STRING( SSLCERTTYPE)
1843 SETOPT_STRING( SSLCERTPASSWD)
1844 SETOPT_STRING( SSLKEY)
1845 SETOPT_STRING( SSLKEYTYPE)
1846 SETOPT_STRING( SSLKEYPASSWD)
1847 SETOPT_STRING( SSLENGINE)
1848 SETOPT_BOOL( SSLENGINE_DEFAULT)
1849 SETOPT_BOOL( CRLF)
1850
1851 SETOPT_SLIST( QUOTE)
1852 SETOPT_SLIST( POSTQUOTE)
1853
1854 SETOPT_STRING( COOKIEFILE)
1855 SETOPT_LONG( SSLVERSION)
1856
1857 static void handle_TIMECONDITION(Connection *conn, value option)
1858 {
1859     CAMLparam1(option);
1860     CURLcode result = CURLE_OK;
1861     int timecond = CURL_TIMECOND_NONE;
1862
1863     switch (Long_val(option))
1864     {
1865     case 0: timecond = CURL_TIMECOND_NONE; break;
1866     case 1: timecond = CURL_TIMECOND_IFMODSINCE; break;
1867     case 2: timecond = CURL_TIMECOND_IFUNMODSINCE; break;
1868     case 3: timecond = CURL_TIMECOND_LASTMOD; break;
1869     default:
1870         failwith("Invalid TIMECOND Option");
1871         break;
1872     }
1873
1874     result = curl_easy_setopt(conn->connection, CURLOPT_TIMECONDITION, timecond);
1875
1876     if (result != CURLE_OK)
1877         raiseError(conn, result);
1878
1879     CAMLreturn0;
1880 }
1881
1882 SETOPT_VAL( TIMEVALUE, Int32_val)
1883 SETOPT_STRING( CUSTOMREQUEST)
1884 SETOPT_STRING( INTERFACE)
1885
1886 static void handle_KRB4LEVEL(Connection *conn, value option)
1887 {
1888     CAMLparam1(option);
1889     CURLcode result = CURLE_OK;
1890
1891     switch (Long_val(option))
1892     {
1893     case 0: /* KRB4_NONE */
1894         result = curl_easy_setopt(conn->connection,
1895                                   CURLOPT_KRB4LEVEL,
1896                                   NULL);
1897         break;
1898
1899     case 1: /* KRB4_CLEAR */
1900         result = curl_easy_setopt(conn->connection,
1901                                   CURLOPT_KRB4LEVEL,
1902                                   "clear");
1903         break;
1904
1905     case 2: /* KRB4_SAFE */
1906         result = curl_easy_setopt(conn->connection,
1907                                   CURLOPT_KRB4LEVEL,
1908                                   "safe");
1909         break;
1910
1911     case 3: /* KRB4_CONFIDENTIAL */
1912         result = curl_easy_setopt(conn->connection,
1913                                   CURLOPT_KRB4LEVEL,
1914                                   "confidential");
1915         break;
1916
1917     case 4: /* KRB4_PRIVATE */
1918         result = curl_easy_setopt(conn->connection,
1919                                   CURLOPT_KRB4LEVEL,
1920                                   "private");
1921         break;
1922
1923     default:
1924         failwith("Invalid KRB4 Option");
1925         break;
1926     }
1927
1928     if (result != CURLE_OK)
1929         raiseError(conn, result);
1930
1931     CAMLreturn0;
1932 }
1933
1934 SETOPT_BOOL( SSL_VERIFYPEER)
1935 SETOPT_STRING( CAINFO)
1936 SETOPT_STRING( CAPATH)
1937 SETOPT_BOOL( FILETIME)
1938 SETOPT_LONG( MAXREDIRS)
1939 SETOPT_LONG( MAXCONNECTS)
1940
1941 static void handle_CLOSEPOLICY(Connection *conn, value option)
1942 {
1943     CAMLparam1(option);
1944     CURLcode result = CURLE_OK;
1945
1946     switch (Long_val(option))
1947     {
1948     case 0: /* CLOSEPOLICY_OLDEST */
1949         result = curl_easy_setopt(conn->connection,
1950                                   CURLOPT_CLOSEPOLICY,
1951                                   CURLCLOSEPOLICY_OLDEST);
1952         break;
1953
1954     case 1: /* CLOSEPOLICY_LEAST_RECENTLY_USED */
1955         result = curl_easy_setopt(conn->connection,
1956                                   CURLOPT_CLOSEPOLICY,
1957                                   CURLCLOSEPOLICY_LEAST_RECENTLY_USED);
1958         break;
1959
1960     default:
1961         failwith("Invalid CLOSEPOLICY Option");
1962         break;
1963     }
1964
1965     if (result != CURLE_OK)
1966         raiseError(conn, result);
1967
1968     CAMLreturn0;
1969 }
1970
1971 SETOPT_BOOL( FRESH_CONNECT)
1972 SETOPT_BOOL( FORBID_REUSE)
1973 SETOPT_STRING( RANDOM_FILE)
1974 SETOPT_STRING( EGDSOCKET)
1975 SETOPT_LONG( CONNECTTIMEOUT)
1976 SETOPT_BOOL( HTTPGET)
1977
1978 static void handle_SSL_VERIFYHOST(Connection *conn, value option)
1979 {
1980     CAMLparam1(option);
1981     CURLcode result = CURLE_OK;
1982
1983     switch (Long_val(option))
1984     {
1985     case 0: /* SSLVERIFYHOST_NONE */
1986     case 1: /* SSLVERIFYHOST_EXISTENCE */
1987     case 2: /* SSLVERIFYHOST_HOSTNAME */
1988         result = curl_easy_setopt(conn->connection,
1989                                   CURLOPT_SSL_VERIFYHOST,
1990                                   /* map EXISTENCE to HOSTNAME */
1991                                   Long_val(option) == 0 ? 0 : 2);
1992         break;
1993
1994     default:
1995         failwith("Invalid SSLVERIFYHOST Option");
1996         break;
1997     }
1998
1999     if (result != CURLE_OK)
2000         raiseError(conn, result);
2001
2002     CAMLreturn0;
2003 }
2004
2005 SETOPT_STRING( COOKIEJAR)
2006 SETOPT_STRING( SSL_CIPHER_LIST)
2007
2008 static void handle_HTTP_VERSION(Connection *conn, value option)
2009 {
2010     CAMLparam1(option);
2011     CURLcode result = CURLE_OK;
2012
2013     switch (Long_val(option))
2014     {
2015     case 0: /* HTTP_VERSION_NONE */
2016         result = curl_easy_setopt(conn->connection,
2017                                   CURLOPT_HTTP_VERSION,
2018                                   CURL_HTTP_VERSION_NONE);
2019         break;
2020
2021     case 1: /* HTTP_VERSION_1_0 */
2022         result = curl_easy_setopt(conn->connection,
2023                                   CURLOPT_HTTP_VERSION,
2024                                   CURL_HTTP_VERSION_1_0);
2025         break;
2026
2027     case 2: /* HTTP_VERSION_1_1 */
2028         result = curl_easy_setopt(conn->connection,
2029                                   CURLOPT_HTTP_VERSION,
2030                                   CURL_HTTP_VERSION_1_1);
2031         break;
2032
2033     default:
2034         failwith("Invalid HTTP_VERSION Option");
2035         break;
2036     }
2037
2038     if (result != CURLE_OK)
2039         raiseError(conn, result);
2040
2041     CAMLreturn0;
2042 }
2043
2044 SETOPT_BOOL( FTP_USE_EPSV)
2045 SETOPT_LONG( DNS_CACHE_TIMEOUT)
2046 SETOPT_BOOL( DNS_USE_GLOBAL_CACHE)
2047
2048 #if HAVE_DECL_CURLOPT_PRIVATE
2049 SETOPT_STRING( PRIVATE)
2050 #endif
2051
2052 #if HAVE_DECL_CURLOPT_HTTP200ALIASES
2053 SETOPT_SLIST( HTTP200ALIASES)
2054 #endif
2055
2056 #if HAVE_DECL_CURLOPT_UNRESTRICTED_AUTH
2057 SETOPT_BOOL( UNRESTRICTED_AUTH)
2058 #endif
2059
2060 #if HAVE_DECL_CURLOPT_FTP_USE_EPRT
2061 SETOPT_BOOL( FTP_USE_EPRT)
2062 #endif
2063
2064 #if HAVE_DECL_CURLOPT_HTTPAUTH
2065 static void handle_HTTPAUTH(Connection *conn, value option)
2066 {
2067     CAMLparam1(option);
2068     CAMLlocal1(listIter);
2069     CURLcode result = CURLE_OK;
2070     long auth = CURLAUTH_NONE;
2071
2072     listIter = option;
2073
2074     while (!Is_long(listIter))
2075     {
2076         switch (Long_val(Field(listIter, 0)))
2077         {
2078         case 0: /* CURLAUTH_BASIC */
2079             auth |= CURLAUTH_BASIC;
2080             break;
2081
2082         case 1: /* CURLAUTH_DIGEST */
2083             auth |= CURLAUTH_DIGEST;
2084             break;
2085
2086         case 2: /* CURLAUTH_GSSNEGOTIATE */
2087             auth |= CURLAUTH_GSSNEGOTIATE;
2088             break;
2089
2090         case 3: /* CURLAUTH_NTLM */
2091             auth |= CURLAUTH_NTLM;
2092             break;
2093
2094         case 4: /* CURLAUTH_ANY */
2095             auth |= CURLAUTH_ANY;
2096             break;
2097
2098         case 5: /* CURLAUTH_ANYSAFE */
2099             auth |= CURLAUTH_ANYSAFE;
2100             break;
2101
2102         default:
2103             failwith("Invalid HTTPAUTH Value");
2104             break;
2105         }
2106
2107         listIter = Field(listIter, 1);
2108     }
2109
2110     result = curl_easy_setopt(conn->connection,
2111                               CURLOPT_HTTPAUTH,
2112                               auth);
2113
2114     if (result != CURLE_OK)
2115         raiseError(conn, result);
2116
2117     CAMLreturn0;
2118 }
2119 #endif
2120
2121 #if HAVE_DECL_CURLOPT_FTP_CREATE_MISSING_DIRS
2122 SETOPT_BOOL( FTP_CREATE_MISSING_DIRS)
2123 #endif
2124
2125 #if HAVE_DECL_CURLOPT_PROXYAUTH
2126 static void handle_PROXYAUTH(Connection *conn, value option)
2127 {
2128     CAMLparam1(option);
2129     CAMLlocal1(listIter);
2130     CURLcode result = CURLE_OK;
2131     long auth = CURLAUTH_NONE;
2132
2133     listIter = option;
2134
2135     while (!Is_long(listIter))
2136     {
2137         switch (Long_val(Field(listIter, 0)))
2138         {
2139         case 0: /* CURLAUTH_BASIC */
2140             auth |= CURLAUTH_BASIC;
2141             break;
2142
2143         case 1: /* CURLAUTH_DIGEST */
2144             auth |= CURLAUTH_DIGEST;
2145             break;
2146
2147         case 2: /* CURLAUTH_GSSNEGOTIATE */
2148             auth |= CURLAUTH_GSSNEGOTIATE;
2149             break;
2150
2151         case 3: /* CURLAUTH_NTLM */
2152             auth |= CURLAUTH_NTLM;
2153             break;
2154
2155         case 4: /* CURLAUTH_ANY */
2156             auth |= CURLAUTH_ANY;
2157             break;
2158
2159         case 5: /* CURLAUTH_ANYSAFE */
2160             auth |= CURLAUTH_ANYSAFE;
2161             break;
2162
2163         default:
2164             failwith("Invalid HTTPAUTH Value");
2165             break;
2166         }
2167
2168         listIter = Field(listIter, 1);
2169     }
2170
2171     result = curl_easy_setopt(conn->connection,
2172                               CURLOPT_PROXYAUTH,
2173                               auth);
2174
2175     if (result != CURLE_OK)
2176         raiseError(conn, result);
2177
2178     CAMLreturn0;
2179 }
2180 #endif
2181
2182 #if HAVE_DECL_CURLOPT_FTP_RESPONSE_TIMEOUT
2183 SETOPT_LONG( FTP_RESPONSE_TIMEOUT)
2184 #endif
2185
2186 #if HAVE_DECL_CURLOPT_IPRESOLVE
2187 static void handle_IPRESOLVE(Connection *conn, value option)
2188 {
2189     CAMLparam1(option);
2190     CURLcode result = CURLE_OK;
2191
2192     switch (Long_val(option))
2193     {
2194     case 0: /* CURL_IPRESOLVE_WHATEVER */
2195         result = curl_easy_setopt(conn->connection,
2196                                   CURLOPT_IPRESOLVE,
2197                                   CURL_IPRESOLVE_WHATEVER);
2198         break;
2199
2200     case 1: /* CURL_IPRESOLVE_V4 */
2201         result = curl_easy_setopt(conn->connection,
2202                                   CURLOPT_IPRESOLVE,
2203                                   CURL_IPRESOLVE_V4);
2204         break;
2205
2206     case 2: /* CURL_IPRESOLVE_V6 */
2207         result = curl_easy_setopt(conn->connection,
2208                                   CURLOPT_IPRESOLVE,
2209                                   CURL_IPRESOLVE_V6);
2210         break;
2211
2212     default:
2213         failwith("Invalid IPRESOLVE Value");
2214         break;
2215     }
2216
2217     if (result != CURLE_OK)
2218         raiseError(conn, result);
2219
2220     CAMLreturn0;
2221 }
2222 #endif
2223
2224 #if HAVE_DECL_CURLOPT_MAXFILESIZE
2225 SETOPT_VAL( MAXFILESIZE, Int32_val)
2226 #endif
2227
2228 #if HAVE_DECL_CURLOPT_INFILESIZE_LARGE
2229 SETOPT_INT64( INFILESIZE_LARGE)
2230 #endif
2231
2232 #if HAVE_DECL_CURLOPT_RESUME_FROM_LARGE
2233 SETOPT_INT64( RESUME_FROM_LARGE)
2234 #endif
2235
2236 #if HAVE_DECL_CURLOPT_MAXFILESIZE_LARGE
2237 SETOPT_INT64( MAXFILESIZE_LARGE)
2238 #endif
2239
2240 #if HAVE_DECL_CURLOPT_NETRC_FILE
2241 SETOPT_STRING( NETRC_FILE)
2242 #endif
2243
2244 #if HAVE_DECL_CURLOPT_FTP_SSL
2245 static void handle_FTP_SSL(Connection *conn, value option)
2246 {
2247     CAMLparam1(option);
2248     CURLcode result = CURLE_OK;
2249
2250     switch (Long_val(option))
2251     {
2252     case 0: /* CURLFTPSSL_NONE */
2253         result = curl_easy_setopt(conn->connection,
2254                                   CURLOPT_FTP_SSL,
2255                                   CURLFTPSSL_NONE);
2256         break;
2257
2258     case 1: /* CURLFTPSSL_TRY */
2259         result = curl_easy_setopt(conn->connection,
2260                                   CURLOPT_FTP_SSL,
2261                                   CURLFTPSSL_TRY);
2262         break;
2263
2264     case 2: /* CURLFTPSSL_CONTROL */
2265         result = curl_easy_setopt(conn->connection,
2266                                   CURLOPT_FTP_SSL,
2267                                   CURLFTPSSL_CONTROL);
2268         break;
2269
2270     case 3: /* CURLFTPSSL_ALL */
2271         result = curl_easy_setopt(conn->connection,
2272                                   CURLOPT_FTP_SSL,
2273                                   CURLFTPSSL_ALL);
2274         break;
2275
2276     default:
2277         failwith("Invalid FTP_SSL Value");
2278         break;
2279     }
2280
2281     if (result != CURLE_OK)
2282         raiseError(conn, result);
2283
2284     CAMLreturn0;
2285 }
2286 #endif
2287
2288 #if HAVE_DECL_CURLOPT_POSTFIELDSIZE_LARGE
2289 SETOPT_INT64( POSTFIELDSIZE_LARGE)
2290 #endif
2291
2292 #if HAVE_DECL_CURLOPT_TCP_NODELAY
2293 /* not using SETOPT_BOOL here because of TCP_NODELAY defined in winsock.h */
2294 SETOPT_VAL_( handle_TCP_NODELAY, CURLOPT_TCP_NODELAY, Bool_val)
2295 #endif
2296
2297 #if HAVE_DECL_CURLOPT_FTPSSLAUTH
2298 static void handle_FTPSSLAUTH(Connection *conn, value option)
2299 {
2300     CAMLparam1(option);
2301     CURLcode result = CURLE_OK;
2302
2303     switch (Long_val(option))
2304     {
2305     case 0: /* CURLFTPAUTH_DEFAULT */
2306         result = curl_easy_setopt(conn->connection,
2307                                   CURLOPT_FTPSSLAUTH,
2308                                   CURLFTPAUTH_DEFAULT);
2309         break;
2310
2311     case 1: /* CURLFTPAUTH_SSL */
2312         result = curl_easy_setopt(conn->connection,
2313                                   CURLOPT_FTPSSLAUTH,
2314                                   CURLFTPAUTH_SSL);
2315         break;
2316
2317     case 2: /* CURLFTPAUTH_TLS */
2318         result = curl_easy_setopt(conn->connection,
2319                                   CURLOPT_FTPSSLAUTH,
2320                                   CURLFTPAUTH_TLS);
2321         break;
2322
2323     default:
2324         failwith("Invalid FTPSSLAUTH value");
2325         break;
2326     }
2327
2328     if (result != CURLE_OK)
2329         raiseError(conn, result);
2330
2331     CAMLreturn0;
2332 }
2333 #endif
2334
2335 #if HAVE_DECL_CURLOPT_FTP_ACCOUNT
2336 SETOPT_STRING( FTP_ACCOUNT)
2337 #endif
2338
2339 #if HAVE_DECL_CURLOPT_COOKIELIST
2340 SETOPT_STRING( COOKIELIST)
2341 #endif
2342
2343 #if HAVE_DECL_CURLOPT_IGNORE_CONTENT_LENGTH
2344 SETOPT_BOOL( IGNORE_CONTENT_LENGTH)
2345 #endif
2346
2347 #if HAVE_DECL_CURLOPT_FTP_SKIP_PASV_IP
2348 SETOPT_BOOL( FTP_SKIP_PASV_IP)
2349 #endif
2350
2351 #if HAVE_DECL_CURLOPT_FTP_FILEMETHOD
2352 static void handle_FTP_FILEMETHOD(Connection *conn, value option)
2353 {
2354     CAMLparam1(option);
2355     CURLcode result = CURLE_OK;
2356
2357     switch (Long_val(option))
2358     {
2359     case 0: /* CURLFTPMETHOD_DEFAULT */
2360         result = curl_easy_setopt(conn->connection,
2361                                   CURLOPT_FTP_FILEMETHOD,
2362                                   CURLFTPMETHOD_DEFAULT);
2363         break;
2364
2365     case 1: /* CURLFTMETHOD_MULTICWD */
2366         result = curl_easy_setopt(conn->connection,
2367                                   CURLOPT_FTP_FILEMETHOD,
2368                                   CURLFTPMETHOD_MULTICWD);
2369         break;
2370
2371     case 2: /* CURLFTPMETHOD_NOCWD */
2372         result = curl_easy_setopt(conn->connection,
2373                                   CURLOPT_FTP_FILEMETHOD,
2374                                   CURLFTPMETHOD_NOCWD);
2375         break;
2376
2377     case 3: /* CURLFTPMETHOD_SINGLECWD */
2378         result = curl_easy_setopt(conn->connection,
2379                                   CURLOPT_FTP_FILEMETHOD,
2380                                   CURLFTPMETHOD_SINGLECWD);
2381
2382     default:
2383         failwith("Invalid FTP_FILEMETHOD value");
2384         break;
2385     }
2386
2387     if (result != CURLE_OK)
2388         raiseError(conn, result);
2389
2390     CAMLreturn0;
2391 }
2392 #endif
2393
2394 #if HAVE_DECL_CURLOPT_LOCALPORT
2395 SETOPT_LONG( LOCALPORT)
2396 #endif
2397
2398 #if HAVE_DECL_CURLOPT_LOCALPORTRANGE
2399 SETOPT_LONG( LOCALPORTRANGE)
2400 #endif
2401
2402 #if HAVE_DECL_CURLOPT_CONNECT_ONLY
2403 SETOPT_BOOL( CONNECT_ONLY)
2404 #endif
2405
2406 #if HAVE_DECL_CURLOPT_MAX_SEND_SPEED_LARGE
2407 SETOPT_INT64( MAX_SEND_SPEED_LARGE)
2408 #endif
2409
2410 #if HAVE_DECL_CURLOPT_MAX_RECV_SPEED_LARGE
2411 SETOPT_INT64( MAX_RECV_SPEED_LARGE)
2412 #endif
2413
2414 #if HAVE_DECL_CURLOPT_FTP_ALTERNATIVE_TO_USER
2415 SETOPT_STRING( FTP_ALTERNATIVE_TO_USER)
2416 #endif
2417
2418 #if HAVE_DECL_CURLOPT_SSL_SESSIONID_CACHE
2419 SETOPT_BOOL( SSL_SESSIONID_CACHE)
2420 #endif
2421
2422 #if HAVE_DECL_CURLOPT_SSH_AUTH_TYPES
2423 static void handle_SSH_AUTH_TYPES(Connection *conn, value option)
2424 {
2425     CAMLparam1(option);
2426     CAMLlocal1(listIter);
2427     CURLcode result = CURLE_OK;
2428     long authTypes = CURLSSH_AUTH_NONE;
2429
2430     listIter = option;
2431
2432     while (!Is_long(listIter))
2433     {
2434         switch (Long_val(Field(listIter, 0)))
2435         {
2436         case 0: /* CURLSSH_AUTH_ANY */
2437             authTypes |= CURLSSH_AUTH_ANY;
2438             break;
2439
2440         case 1: /* CURLSSH_AUTH_PUBLICKEY */
2441             authTypes |= CURLSSH_AUTH_PUBLICKEY;
2442             break;
2443
2444         case 2: /* CURLSSH_AUTH_PASSWORD */
2445             authTypes |= CURLSSH_AUTH_PASSWORD;
2446             break;
2447
2448         case 3: /* CURLSSH_AUTH_HOST */
2449             authTypes |= CURLSSH_AUTH_HOST;
2450             break;
2451
2452         case 4: /* CURLSSH_AUTH_KEYBOARD */
2453             authTypes |= CURLSSH_AUTH_KEYBOARD;
2454             break;
2455
2456         default:
2457             failwith("Invalid CURLSSH_AUTH_TYPES Value");
2458             break;
2459         }
2460
2461         listIter = Field(listIter, 1);
2462     }
2463
2464     result = curl_easy_setopt(conn->connection,
2465                               CURLOPT_SSH_AUTH_TYPES,
2466                               authTypes);
2467
2468     if (result != CURLE_OK)
2469         raiseError(conn, result);
2470
2471     CAMLreturn0;
2472 }
2473 #endif
2474
2475 #if HAVE_DECL_CURLOPT_SSH_PUBLIC_KEYFILE
2476 SETOPT_STRING( SSH_PUBLIC_KEYFILE)
2477 #endif
2478
2479 #if HAVE_DECL_CURLOPT_SSH_PRIVATE_KEYFILE
2480 SETOPT_STRING( SSH_PRIVATE_KEYFILE)
2481 #endif
2482
2483 #if HAVE_DECL_CURLOPT_FTP_SSL_CCC
2484 static void handle_FTP_SSL_CCC(Connection *conn, value option)
2485 {
2486     CAMLparam1(option);
2487     CURLcode result = CURLE_OK;
2488
2489     switch (Long_val(option))
2490     {
2491     case 0: /* CURLFTPSSL_CCC_NONE */
2492         result = curl_easy_setopt(conn->connection,
2493                                   CURLOPT_FTP_SSL_CCC,
2494                                   CURLFTPSSL_CCC_NONE);
2495         break;
2496
2497     case 1: /* CURLFTPSSL_CCC_PASSIVE */
2498         result = curl_easy_setopt(conn->connection,
2499                                   CURLOPT_FTP_SSL_CCC,
2500                                   CURLFTPSSL_CCC_PASSIVE);
2501         break;
2502
2503     case 2: /* CURLFTPSSL_CCC_ACTIVE */
2504         result = curl_easy_setopt(conn->connection,
2505                                   CURLOPT_FTP_SSL_CCC,
2506                                   CURLFTPSSL_CCC_ACTIVE);
2507         break;
2508
2509     default:
2510         failwith("Invalid FTPSSL_CCC value");
2511         break;
2512     }
2513
2514     if (result != CURLE_OK)
2515         raiseError(conn, result);
2516
2517     CAMLreturn0;
2518 }
2519 #endif
2520
2521 #if HAVE_DECL_CURLOPT_TIMEOUT_MS
2522 SETOPT_LONG( TIMEOUT_MS)
2523 #endif
2524
2525 #if HAVE_DECL_CURLOPT_CONNECTTIMEOUT_MS
2526 SETOPT_LONG( CONNECTTIMEOUT_MS)
2527 #endif
2528
2529 #if HAVE_DECL_CURLOPT_HTTP_TRANSFER_DECODING
2530 SETOPT_BOOL( HTTP_TRANSFER_DECODING)
2531 #endif
2532
2533 #if HAVE_DECL_CURLOPT_HTTP_CONTENT_DECODING
2534 SETOPT_BOOL( HTTP_CONTENT_DECODING)
2535 #endif
2536
2537 #if HAVE_DECL_CURLOPT_NEW_FILE_PERMS
2538 SETOPT_LONG( NEW_FILE_PERMS)
2539 #endif
2540
2541 #if HAVE_DECL_CURLOPT_NEW_DIRECTORY_PERMS
2542 SETOPT_LONG( NEW_DIRECTORY_PERMS)
2543 #endif
2544
2545 #if HAVE_DECL_CURLOPT_POST301
2546 SETOPT_BOOL( POST301)
2547 #endif
2548
2549 #if HAVE_DECL_CURLOPT_SSH_HOST_PUBLIC_KEY_MD5
2550 SETOPT_STRING( SSH_HOST_PUBLIC_KEY_MD5)
2551 #endif
2552
2553 #if HAVE_DECL_CURLOPT_COPYPOSTFIELDS
2554 SETOPT_STRING( COPYPOSTFIELDS)
2555 #endif
2556
2557 #if HAVE_DECL_CURLOPT_PROXY_TRANSFER_MODE
2558 SETOPT_BOOL( PROXY_TRANSFER_MODE)
2559 #endif
2560
2561 #if HAVE_DECL_CURLOPT_AUTOREFERER
2562 SETOPT_BOOL( AUTOREFERER)
2563 #endif
2564
2565 #if HAVE_DECL_CURLOPT_PROXYTYPE
2566 static void handle_PROXYTYPE(Connection *conn, value option)
2567 {
2568     CAMLparam1(option);
2569     CURLcode result = CURLE_OK;
2570     long proxy_type;
2571
2572     switch (Long_val(option))
2573     {
2574       case 0: proxy_type = CURLPROXY_HTTP; break;
2575       case 1: proxy_type = CURLPROXY_HTTP_1_0; break;
2576       case 2: proxy_type = CURLPROXY_SOCKS4; break;
2577       case 3: proxy_type = CURLPROXY_SOCKS5; break;
2578       case 4: proxy_type = CURLPROXY_SOCKS4A; break;
2579       case 5: proxy_type = CURLPROXY_SOCKS5_HOSTNAME; break;
2580       default:
2581         failwith("Invalid curl proxy type");
2582     }
2583
2584     result = curl_easy_setopt(conn->connection,
2585                               CURLOPT_PROXYTYPE,
2586                               proxy_type);
2587
2588     if (result != CURLE_OK)
2589         raiseError(conn, result);
2590
2591     CAMLreturn0;
2592 }
2593 #endif
2594
2595 #if HAVE_DECL_CURLOPT_PROTOCOLS || HAVE_DECL_CURLOPT_REDIR_PROTOCOLS
2596
2597 long protoMap[] =
2598 {
2599   CURLPROTO_ALL,
2600   CURLPROTO_HTTP, CURLPROTO_HTTPS, CURLPROTO_FTP, CURLPROTO_FTPS, CURLPROTO_SCP, CURLPROTO_SFTP,
2601   CURLPROTO_TELNET, CURLPROTO_LDAP, CURLPROTO_LDAPS, CURLPROTO_DICT, CURLPROTO_FILE, CURLPROTO_TFTP,
2602 /* factor out with autoconf? */
2603 #if defined(CURLPROTO_IMAP)
2604   CURLPROTO_IMAP,
2605 #else
2606   0,
2607 #endif
2608 #if defined(CURLPROTO_IMAPS)
2609   CURLPROTO_IMAPS,
2610 #else
2611   0,
2612 #endif
2613 #if defined(CURLPROTO_POP3)
2614   CURLPROTO_POP3,
2615 #else
2616   0,
2617 #endif
2618 #if defined(CURLPROTO_POP3S)
2619   CURLPROTO_POP3S,
2620 #else
2621   0,
2622 #endif
2623 #if defined(CURLPROTO_SMTP)
2624   CURLPROTO_SMTP,
2625 #else
2626   0,
2627 #endif
2628 #if defined(CURLPROTO_SMTPS)
2629   CURLPROTO_SMTPS,
2630 #else
2631   0,
2632 #endif
2633 #if defined(CURLPROTO_RTSP)
2634   CURLPROTO_RTSP,
2635 #else
2636   0,
2637 #endif
2638 #if defined(CURLPROTO_RTMP)
2639   CURLPROTO_RTMP,
2640 #else
2641   0,
2642 #endif
2643 #if defined(CURLPROTO_RTMPT)
2644   CURLPROTO_RTMPT,
2645 #else
2646   0,
2647 #endif
2648 #if defined(CURLPROTO_RTMPE)
2649   CURLPROTO_RTMPE,
2650 #else
2651   0,
2652 #endif
2653 #if defined(CURLPROTO_RTMPTE)
2654   CURLPROTO_RTMPTE,
2655 #else
2656   0,
2657 #endif
2658 #if defined(CURLPROTO_RTMPS)
2659   CURLPROTO_RTMPS,
2660 #else
2661   0,
2662 #endif
2663 #if defined(CURLPROTO_RTMPTS)
2664   CURLPROTO_RTMPTS,
2665 #else
2666   0,
2667 #endif
2668 #if defined(CURLPROTO_GOPHER)
2669   CURLPROTO_GOPHER,
2670 #else
2671   0,
2672 #endif
2673 };
2674
2675 static void handle_PROTOCOLSOPTION(CURLoption curlopt, Connection *conn, value option)
2676 {
2677     CAMLparam1(option);
2678     CURLcode result = CURLE_OK;
2679     long protocols = 0;
2680     int index;
2681
2682     while (Val_emptylist != option)
2683     {
2684         index = Int_val(Field(option, 0));
2685         if ((index < 0) || ((size_t)index >= sizeof(protoMap) / sizeof(protoMap[0])))
2686           failwith("Invalid curl protocol");
2687
2688         protocols = protocols | protoMap[index];
2689
2690         option = Field(option, 1);
2691     }
2692
2693     result = curl_easy_setopt(conn->connection,
2694                               curlopt,
2695                               protocols);
2696
2697     if (result != CURLE_OK)
2698         raiseError(conn, result);
2699
2700     CAMLreturn0;
2701 }
2702 #endif
2703
2704 #if HAVE_DECL_CURLOPT_PROTOCOLS
2705 static void handle_PROTOCOLS(Connection *conn, value option)
2706 {
2707   handle_PROTOCOLSOPTION(CURLOPT_PROTOCOLS, conn, option);
2708 }
2709 #endif
2710
2711 #if HAVE_DECL_CURLOPT_REDIR_PROTOCOLS
2712 static void handle_REDIR_PROTOCOLS(Connection *conn, value option)
2713 {
2714   handle_PROTOCOLSOPTION(CURLOPT_REDIR_PROTOCOLS, conn, option);
2715 }
2716 #endif
2717
2718 #if HAVE_DECL_CURLOPT_RESOLVE
2719 SETOPT_SLIST( RESOLVE)
2720 #endif
2721
2722 #if HAVE_DECL_CURLOPT_DNS_SERVERS
2723 SETOPT_STRING( DNS_SERVERS)
2724 #endif
2725
2726 #if HAVE_DECL_CURLOPT_MAIL_FROM
2727 SETOPT_STRING( MAIL_FROM)
2728 #endif
2729
2730 #if HAVE_DECL_CURLOPT_MAIL_RCPT
2731 SETOPT_SLIST( MAIL_RCPT)
2732 #endif
2733
2734 /**
2735  **  curl_easy_setopt helper function
2736  **/
2737
2738 #define MAP(name) { handle_ ## name, "CURLOPT_"#name, Ocaml_##name }
2739 #define MAP_NO(name) { NULL, "CURLOPT_"#name , Ocaml_##name }
2740 #define IMM(name) { handle_ ## name, "CURLOPT_"#name, -1 }
2741 #define IMM_NO(name) { NULL, "CURLOPT_"#name , -1 }
2742
2743 CURLOptionMapping implementedOptionMap[] =
2744 {
2745   MAP(WRITEFUNCTION),
2746   MAP(READFUNCTION),
2747   IMM(INFILESIZE),
2748   MAP(URL),
2749   MAP(PROXY),
2750   IMM(PROXYPORT),
2751   IMM(HTTPPROXYTUNNEL),
2752   IMM(VERBOSE),
2753   IMM(HEADER),
2754   IMM(NOPROGRESS),
2755 #if HAVE_DECL_CURLOPT_NOSIGNAL
2756   IMM(NOSIGNAL),
2757 #else
2758   IMM_NO(NOSIGNAL),
2759 #endif
2760   IMM(NOBODY),
2761   IMM(FAILONERROR),
2762   IMM(UPLOAD),
2763   IMM(POST),
2764   IMM(FTPLISTONLY),
2765   IMM(FTPAPPEND),
2766   IMM(NETRC),
2767 #if HAVE_DECL_CURLOPT_ENCODING
2768   IMM(ENCODING),
2769 #else
2770   IMM_NO(ENCODING),
2771 #endif
2772   IMM(FOLLOWLOCATION),
2773   IMM(TRANSFERTEXT),
2774   IMM(PUT),
2775   MAP(USERPWD),
2776   MAP(PROXYUSERPWD),
2777   MAP(RANGE),
2778   IMM(ERRORBUFFER), /* mutable buffer, as output value, do not duplicate */
2779   IMM(TIMEOUT),
2780   MAP(POSTFIELDS),
2781   IMM(POSTFIELDSIZE),
2782   MAP(REFERER),
2783   MAP(USERAGENT),
2784   MAP(FTPPORT),
2785   IMM(LOW_SPEED_LIMIT),
2786   IMM(LOW_SPEED_TIME),
2787   IMM(RESUME_FROM),
2788   MAP(COOKIE),
2789   MAP(HTTPHEADER),
2790   MAP(HTTPPOST),
2791   MAP(SSLCERT),
2792   MAP(SSLCERTTYPE),
2793   MAP(SSLCERTPASSWD),
2794   MAP(SSLKEY),
2795   MAP(SSLKEYTYPE),
2796   MAP(SSLKEYPASSWD),
2797   MAP(SSLENGINE),
2798   IMM(SSLENGINE_DEFAULT),
2799   IMM(CRLF),
2800   MAP(QUOTE),
2801   MAP(POSTQUOTE),
2802   MAP(HEADERFUNCTION),
2803   MAP(COOKIEFILE),
2804   IMM(SSLVERSION),
2805   IMM(TIMECONDITION),
2806   IMM(TIMEVALUE),
2807   MAP(CUSTOMREQUEST),
2808   MAP(INTERFACE),
2809   IMM(KRB4LEVEL),
2810   MAP(PROGRESSFUNCTION),
2811   IMM(SSL_VERIFYPEER),
2812   MAP(CAINFO),
2813   MAP(CAPATH),
2814   IMM(FILETIME),
2815   IMM(MAXREDIRS),
2816   IMM(MAXCONNECTS),
2817   IMM(CLOSEPOLICY),
2818   IMM(FRESH_CONNECT),
2819   IMM(FORBID_REUSE),
2820   MAP(RANDOM_FILE),
2821   MAP(EGDSOCKET),
2822   IMM(CONNECTTIMEOUT),
2823   IMM(HTTPGET),
2824   IMM(SSL_VERIFYHOST),
2825   MAP(COOKIEJAR),
2826   MAP(SSL_CIPHER_LIST),
2827   IMM(HTTP_VERSION),
2828   IMM(FTP_USE_EPSV),
2829   IMM(DNS_CACHE_TIMEOUT),
2830   IMM(DNS_USE_GLOBAL_CACHE),
2831   MAP(DEBUGFUNCTION),
2832 #if HAVE_DECL_CURLOPT_PRIVATE
2833   MAP(PRIVATE),
2834 #else
2835   MAP_NO(PRIVATE),
2836 #endif
2837 #if HAVE_DECL_CURLOPT_HTTP200ALIASES
2838   MAP(HTTP200ALIASES),
2839 #else
2840   MAP_NO(HTTP200ALIASES),
2841 #endif
2842 #if HAVE_DECL_CURLOPT_UNRESTRICTED_AUTH
2843   IMM(UNRESTRICTED_AUTH),
2844 #else
2845   IMM_NO(UNRESTRICTED_AUTH),
2846 #endif
2847 #if HAVE_DECL_CURLOPT_FTP_USE_EPRT
2848   IMM(FTP_USE_EPRT),
2849 #else
2850   IMM_NO(FTP_USE_EPRT),
2851 #endif
2852 #if HAVE_DECL_CURLOPT_HTTPAUTH
2853   IMM(HTTPAUTH),
2854 #else
2855   IMM_NO(HTTPAUTH),
2856 #endif
2857 #if HAVE_DECL_CURLOPT_FTP_CREATE_MISSING_DIRS
2858   IMM(FTP_CREATE_MISSING_DIRS),
2859 #else
2860   IMM_NO(FTP_CREATE_MISSING_DIRS),
2861 #endif
2862 #if HAVE_DECL_CURLOPT_PROXYAUTH
2863   IMM(PROXYAUTH),
2864 #else
2865   IMM_NO(PROXYAUTH),
2866 #endif
2867 #if HAVE_DECL_CURLOPT_FTP_RESPONSE_TIMEOUT
2868   IMM(FTP_RESPONSE_TIMEOUT),
2869 #else
2870   IMM_NO(FTP_RESPONSE_TIMEOUT),
2871 #endif
2872 #if HAVE_DECL_CURLOPT_IPRESOLVE
2873   IMM(IPRESOLVE),
2874 #else
2875   IMM_NO(IPRESOLVE),
2876 #endif
2877 #if HAVE_DECL_CURLOPT_MAXFILESIZE
2878   IMM(MAXFILESIZE),
2879 #else
2880   IMM_NO(MAXFILESIZE),
2881 #endif
2882 #if HAVE_DECL_CURLOPT_INFILESIZE_LARGE
2883   IMM(INFILESIZE_LARGE),
2884 #else
2885   IMM_NO(INFILESIZE_LARGE),
2886 #endif
2887 #if HAVE_DECL_CURLOPT_RESUME_FROM_LARGE
2888   IMM(RESUME_FROM_LARGE),
2889 #else
2890   IMM_NO(RESUME_FROM_LARGE),
2891 #endif
2892 #if HAVE_DECL_CURLOPT_MAXFILESIZE_LARGE
2893   IMM(MAXFILESIZE_LARGE),
2894 #else
2895   IMM_NO(MAXFILESIZE_LARGE),
2896 #endif
2897 #if HAVE_DECL_CURLOPT_NETRC_FILE
2898   MAP(NETRC_FILE),
2899 #else
2900   MAP_NO(NETRC_FILE),
2901 #endif
2902 #if HAVE_DECL_CURLOPT_FTP_SSL
2903   IMM(FTP_SSL),
2904 #else
2905   IMM_NO(FTP_SSL),
2906 #endif
2907 #if HAVE_DECL_CURLOPT_POSTFIELDSIZE_LARGE
2908   IMM(POSTFIELDSIZE_LARGE),
2909 #else
2910   IMM_NO(POSTFIELDSIZE_LARGE),
2911 #endif
2912 #if HAVE_DECL_CURLOPT_TCP_NODELAY
2913   IMM(TCP_NODELAY),
2914 #else
2915   IMM_NO(TCP_NODELAY),
2916 #endif
2917 #if HAVE_DECL_CURLOPT_FTPSSLAUTH
2918   IMM(FTPSSLAUTH),
2919 #else
2920   IMM_NO(FTPSSLAUTH),
2921 #endif
2922 #if HAVE_DECL_CURLOPT_IOCTLFUNCTION
2923   MAP(IOCTLFUNCTION),
2924 #else
2925   MAP_NO(IOCTLFUNCTION),
2926 #endif
2927 #if HAVE_DECL_CURLOPT_FTP_ACCOUNT
2928   MAP(FTP_ACCOUNT),
2929 #else
2930   MAP_NO(FTP_ACCOUNT),
2931 #endif
2932 #if HAVE_DECL_CURLOPT_COOKIELIST
2933   MAP(COOKIELIST),
2934 #else
2935   MAP_NO(COOKIELIST),
2936 #endif
2937 #if HAVE_DECL_CURLOPT_IGNORE_CONTENT_LENGTH
2938   IMM(IGNORE_CONTENT_LENGTH),
2939 #else
2940   IMM_NO(IGNORE_CONTENT_LENGTH),
2941 #endif
2942 #if HAVE_DECL_CURLOPT_FTP_SKIP_PASV_IP
2943   IMM(FTP_SKIP_PASV_IP),
2944 #else
2945   IMM_NO(FTP_SKIP_PASV_IP),
2946 #endif
2947 #if HAVE_DECL_CURLOPT_FTP_FILEMETHOD
2948   IMM(FTP_FILEMETHOD),
2949 #else
2950   IMM_NO(FTP_FILEMETHOD),
2951 #endif
2952 #if HAVE_DECL_CURLOPT_LOCALPORT
2953   IMM(LOCALPORT),
2954 #else
2955   IMM_NO(LOCALPORT),
2956 #endif
2957 #if HAVE_DECL_CURLOPT_LOCALPORTRANGE
2958   IMM(LOCALPORTRANGE),
2959 #else
2960   IMM_NO(LOCALPORTRANGE),
2961 #endif
2962 #if HAVE_DECL_CURLOPT_CONNECT_ONLY
2963   IMM(CONNECT_ONLY),
2964 #else
2965   IMM_NO(CONNECT_ONLY),
2966 #endif
2967 #if HAVE_DECL_CURLOPT_MAX_SEND_SPEED_LARGE
2968   IMM(MAX_SEND_SPEED_LARGE),
2969 #else
2970   IMM_NO(MAX_SEND_SPEED_LARGE),
2971 #endif
2972 #if HAVE_DECL_CURLOPT_MAX_RECV_SPEED_LARGE
2973   IMM(MAX_RECV_SPEED_LARGE),
2974 #else
2975   IMM_NO(MAX_RECV_SPEED_LARGE),
2976 #endif
2977 #if HAVE_DECL_CURLOPT_FTP_ALTERNATIVE_TO_USER
2978   MAP(FTP_ALTERNATIVE_TO_USER),
2979 #else
2980   MAP_NO(FTP_ALTERNATIVE_TO_USER),
2981 #endif
2982 #if HAVE_DECL_CURLOPT_SSL_SESSIONID_CACHE
2983   IMM(SSL_SESSIONID_CACHE),
2984 #else
2985   IMM_NO(SSL_SESSIONID_CACHE),
2986 #endif
2987 #if HAVE_DECL_CURLOPT_SSH_AUTH_TYPES
2988   IMM(SSH_AUTH_TYPES),
2989 #else
2990   IMM_NO(SSH_AUTH_TYPES),
2991 #endif
2992 #if HAVE_DECL_CURLOPT_SSH_PUBLIC_KEYFILE
2993   MAP(SSH_PUBLIC_KEYFILE),
2994 #else
2995   MAP_NO(SSH_PUBLIC_KEYFILE),
2996 #endif
2997 #if HAVE_DECL_CURLOPT_SSH_PRIVATE_KEYFILE
2998   MAP(SSH_PRIVATE_KEYFILE),
2999 #else
3000   MAP_NO(SSH_PRIVATE_KEYFILE),
3001 #endif
3002 #if HAVE_DECL_CURLOPT_FTP_SSL_CCC
3003   IMM(FTP_SSL_CCC),
3004 #else
3005   IMM_NO(FTP_SSL_CCC),
3006 #endif
3007 #if HAVE_DECL_CURLOPT_TIMEOUT_MS
3008   IMM(TIMEOUT_MS),
3009 #else
3010   IMM_NO(TIMEOUT_MS),
3011 #endif
3012 #if HAVE_DECL_CURLOPT_CONNECTTIMEOUT_MS
3013   IMM(CONNECTTIMEOUT_MS),
3014 #else
3015   IMM_NO(CONNECTTIMEOUT_MS),
3016 #endif
3017 #if HAVE_DECL_CURLOPT_HTTP_TRANSFER_DECODING
3018   IMM(HTTP_TRANSFER_DECODING),
3019 #else
3020   IMM_NO(HTTP_TRANSFER_DECODING),
3021 #endif
3022 #if HAVE_DECL_CURLOPT_HTTP_CONTENT_DECODING
3023   IMM(HTTP_CONTENT_DECODING),
3024 #else
3025   IMM_NO(HTTP_CONTENT_DECODING),
3026 #endif
3027 #if HAVE_DECL_CURLOPT_NEW_FILE_PERMS
3028   IMM(NEW_FILE_PERMS),
3029 #else
3030   IMM_NO(NEW_FILE_PERMS),
3031 #endif
3032 #if HAVE_DECL_CURLOPT_NEW_DIRECTORY_PERMS
3033   IMM(NEW_DIRECTORY_PERMS),
3034 #else
3035   IMM_NO(NEW_DIRECTORY_PERMS),
3036 #endif
3037 #if HAVE_DECL_CURLOPT_POST301
3038   IMM(POST301),
3039 #else
3040   IMM_NO(POST301),
3041 #endif
3042 #if HAVE_DECL_CURLOPT_SSH_HOST_PUBLIC_KEY_MD5
3043   MAP(SSH_HOST_PUBLIC_KEY_MD5),
3044 #else
3045   MAP_NO(SSH_HOST_PUBLIC_KEY_MD5),
3046 #endif
3047 #if HAVE_DECL_CURLOPT_COPYPOSTFIELDS
3048   MAP(COPYPOSTFIELDS),
3049 #else
3050   MAP_NO(COPYPOSTFIELDS),
3051 #endif
3052 #if HAVE_DECL_CURLOPT_PROXY_TRANSFER_MODE
3053   IMM(PROXY_TRANSFER_MODE),
3054 #else
3055   IMM_NO(PROXY_TRANSFER_MODE),
3056 #endif
3057 #if HAVE_DECL_CURLOPT_SEEKFUNCTION
3058   MAP(SEEKFUNCTION),
3059 #else
3060   MAP_NO(SEEKFUNCTION),
3061 #endif
3062 #if HAVE_DECL_CURLOPT_AUTOREFERER
3063   IMM(AUTOREFERER),
3064 #else
3065   IMM_NO(AUTOREFERER),
3066 #endif
3067 #if HAVE_DECL_CURLOPT_OPENSOCKETFUNCTION
3068   MAP(OPENSOCKETFUNCTION),
3069 #else
3070   MAP_NO(OPENSOCKETFUNCTION),
3071 #endif
3072 #if HAVE_DECL_CURLOPT_PROXYTYPE
3073   IMM(PROXYTYPE),
3074 #else
3075   IMM_NO(PROXYTYPE),
3076 #endif
3077 #if HAVE_DECL_CURLOPT_PROTOCOLS
3078   IMM(PROTOCOLS),
3079 #else
3080   IMM_NO(PROTOCOLS),
3081 #endif
3082 #if HAVE_DECL_CURLOPT_REDIR_PROTOCOLS
3083   IMM(REDIR_PROTOCOLS),
3084 #else
3085   IMM_NO(REDIR_PROTOCOLS),
3086 #endif
3087 #if HAVE_DECL_CURLOPT_RESOLVE
3088   MAP(RESOLVE),
3089 #else
3090   MAP_NO(RESOLVE),
3091 #endif
3092 #if HAVE_DECL_CURLOPT_DNS_SERVERS
3093   MAP(DNS_SERVERS),
3094 #else
3095   MAP_NO(DNS_SERVERS),
3096 #endif
3097 #if HAVE_DECL_CURLOPT_MAIL_FROM
3098   MAP(MAIL_FROM),
3099 #else
3100   MAP_NO(MAIL_FROM),
3101 #endif
3102 #if HAVE_DECL_CURLOPT_MAIL_RCPT
3103   MAP(MAIL_RCPT),
3104 #else
3105   MAP_NO(MAIL_RCPT),
3106 #endif
3107 };
3108
3109 static Connection *duplicateConnection(Connection *original)
3110 {
3111     Connection *connection = NULL;
3112     CURL* h = NULL;
3113     size_t i = 0;
3114     CURLOptionMapping* this = NULL;
3115
3116     caml_enter_blocking_section();
3117     h  = curl_easy_duphandle(original->connection);
3118     caml_leave_blocking_section();
3119
3120     connection = allocConnection(h);
3121
3122     for (i = 0; i < sizeof(implementedOptionMap)/sizeof(CURLOptionMapping); i++)
3123     {
3124       this = &implementedOptionMap[i];
3125       if (-1 == this->ocamlValue) continue;
3126       if (this->optionHandler && (Field(original->ocamlValues, this->ocamlValue) != Val_unit))
3127       {
3128         this->optionHandler(connection, Field(original->ocamlValues, this->ocamlValue));
3129       }
3130     }
3131
3132     return connection;
3133 }
3134
3135 CAMLprim value helper_curl_easy_setopt(value conn, value option)
3136 {
3137     CAMLparam2(conn, option);
3138     CAMLlocal1(data);
3139     Connection *connection = Connection_val(conn);
3140     CURLOptionMapping* thisOption = NULL;
3141     static value* exception = NULL;
3142
3143     checkConnection(connection);
3144
3145     if (!Is_block(option))
3146         failwith("Not a block");
3147
3148     if (Wosize_val(option) < 1)
3149         failwith("Insufficient data in block");
3150
3151     data = Field(option, 0);
3152
3153     if (Tag_val(option) < sizeof(implementedOptionMap)/sizeof(CURLOptionMapping))
3154     {
3155       thisOption = &implementedOptionMap[Tag_val(option)];
3156       if (thisOption->optionHandler)
3157         thisOption->optionHandler(connection, data);
3158       else
3159       {
3160         if (NULL == exception)
3161         {
3162           exception = caml_named_value("Curl.NotImplemented");
3163           if (NULL == exception) caml_invalid_argument("Curl.NotImplemented");
3164         }
3165
3166         caml_raise_with_string(*exception, thisOption->name);
3167       }
3168     }
3169     else
3170       failwith("Invalid CURLOPT Option");
3171
3172     CAMLreturn(Val_unit);
3173 }
3174
3175 /**
3176  **  curl_easy_perform helper function
3177  **/
3178
3179 CAMLprim value helper_curl_easy_perform(value conn)
3180 {
3181     CAMLparam1(conn);
3182     CURLcode result = CURLE_OK;
3183     Connection *connection = Connection_val(conn);
3184
3185     checkConnection(connection);
3186
3187     enter_blocking_section();
3188     result = curl_easy_perform(connection->connection);
3189     leave_blocking_section();
3190
3191     if (result != CURLE_OK)
3192         raiseError(connection, result);
3193
3194     CAMLreturn(Val_unit);
3195 }
3196
3197 /**
3198  **  curl_easy_cleanup helper function
3199  **/
3200
3201 CAMLprim value helper_curl_easy_cleanup(value conn)
3202 {
3203     CAMLparam1(conn);
3204     Connection *connection = Connection_val(conn);
3205
3206     checkConnection(connection);
3207
3208     removeConnection(connection, 0);
3209
3210     CAMLreturn(Val_unit);
3211 }
3212
3213 /**
3214  **  curl_easy_duphandle helper function
3215  **/
3216
3217 CAMLprim value helper_curl_easy_duphandle(value conn)
3218 {
3219     CAMLparam1(conn);
3220     CAMLlocal1(result);
3221     Connection *connection = Connection_val(conn);
3222
3223     checkConnection(connection);
3224
3225     result = caml_curl_alloc(duplicateConnection(connection));
3226
3227     CAMLreturn(result);
3228 }
3229
3230 /**
3231  **  curl_easy_getinfo helper function
3232  **/
3233
3234 enum GetInfoResultType {
3235     StringValue, LongValue, DoubleValue, StringListValue
3236 };
3237
3238 value convertStringList(struct curl_slist *slist)
3239 {
3240     CAMLparam0();
3241     CAMLlocal3(result, current, next);
3242     struct curl_slist *p = slist;
3243
3244     result = Val_int(0);
3245     current = Val_int(0);
3246     next = Val_int(0);
3247
3248     while (p != NULL)
3249     {
3250         next = alloc_tuple(2);
3251         Store_field(next, 0, copy_string(p->data));
3252         Store_field(next, 1, Val_int(0));
3253
3254         if (result == Val_int(0))
3255             result = next;
3256
3257         if (current != Val_int(0))
3258             Store_field(current, 1, next);
3259
3260         current = next;
3261
3262         p = p->next;
3263     }
3264
3265     curl_slist_free_all(slist);
3266
3267     CAMLreturn(result);
3268 }
3269
3270 CAMLprim value helper_curl_easy_getinfo(value conn, value option)
3271 {
3272     CAMLparam2(conn, option);
3273     CAMLlocal1(result);
3274     CURLcode curlResult;
3275     Connection *connection = Connection_val(conn);
3276     enum GetInfoResultType resultType;
3277     char *strValue = NULL;
3278     double doubleValue;
3279     long longValue;
3280     struct curl_slist *stringListValue = NULL;
3281
3282     checkConnection(connection);
3283
3284     switch(Long_val(option))
3285     {
3286 #if HAVE_DECL_CURLINFO_EFFECTIVE_URL
3287     case 0: /* CURLINFO_EFFECTIVE_URL */
3288         resultType = StringValue;
3289
3290         curlResult = curl_easy_getinfo(connection->connection,
3291                                        CURLINFO_EFFECTIVE_URL,
3292                                        &strValue);
3293         break;
3294 #else
3295 #pragma message("libcurl does not provide CURLINFO_EFFECTIVE_URL")
3296 #endif
3297
3298 #if HAVE_DECL_CURLINFO_RESPONSE_CODE || HAVE_DECL_CURLINFO_HTTP_CODE
3299     case 1: /* CURLINFO_HTTP_CODE */
3300     case 2: /* CURLINFO_RESPONSE_CODE */
3301 #if HAVE_DECL_CURLINFO_RESPONSE_CODE
3302         resultType = LongValue;
3303
3304         curlResult = curl_easy_getinfo(connection->connection,
3305                                        CURLINFO_RESPONSE_CODE,
3306                                        &longValue);
3307 #else
3308         resultType = LongValue;
3309
3310         curlResult = curl_easy_getinfo(connection->connection,
3311                                        CURLINFO_HTTP_CODE,
3312                                        &longValue);
3313 #endif
3314         break;
3315 #endif
3316
3317 #if HAVE_DECL_CURLINFO_TOTAL_TIME
3318     case 3: /* CURLINFO_TOTAL_TIME */
3319         resultType = DoubleValue;
3320
3321         curlResult = curl_easy_getinfo(connection->connection,
3322                                        CURLINFO_TOTAL_TIME,
3323                                        &doubleValue);
3324         break;
3325 #endif
3326
3327 #if HAVE_DECL_CURLINFO_NAMELOOKUP_TIME
3328     case 4: /* CURLINFO_NAMELOOKUP_TIME */
3329         resultType = DoubleValue;
3330
3331         curlResult = curl_easy_getinfo(connection->connection,
3332                                        CURLINFO_NAMELOOKUP_TIME,
3333                                        &doubleValue);
3334         break;
3335 #endif
3336
3337 #if HAVE_DECL_CURLINFO_CONNECT_TIME
3338     case 5: /* CURLINFO_CONNECT_TIME */
3339         resultType = DoubleValue;
3340
3341         curlResult = curl_easy_getinfo(connection->connection,
3342                                        CURLINFO_CONNECT_TIME,
3343                                        &doubleValue);
3344         break;
3345 #endif
3346
3347 #if HAVE_DECL_CURLINFO_PRETRANSFER_TIME
3348     case 6: /* CURLINFO_PRETRANSFER_TIME */
3349         resultType = DoubleValue;
3350
3351         curlResult = curl_easy_getinfo(connection->connection,
3352                                        CURLINFO_PRETRANSFER_TIME,
3353                                        &doubleValue);
3354         break;
3355 #endif
3356
3357 #if HAVE_DECL_CURLINFO_SIZE_UPLOAD
3358     case 7: /* CURLINFO_SIZE_UPLOAD */
3359         resultType = DoubleValue;
3360
3361         curlResult = curl_easy_getinfo(connection->connection,
3362                                        CURLINFO_SIZE_UPLOAD,
3363                                        &doubleValue);
3364         break;
3365 #endif
3366
3367 #if HAVE_DECL_CURLINFO_SIZE_DOWNLOAD
3368     case 8: /* CURLINFO_SIZE_DOWNLOAD */
3369         resultType = DoubleValue;
3370
3371         curlResult = curl_easy_getinfo(connection->connection,
3372                                        CURLINFO_SIZE_DOWNLOAD,
3373                                        &doubleValue);
3374         break;
3375 #endif
3376
3377 #if HAVE_DECL_CURLINFO_SPEED_DOWNLOAD
3378     case 9: /* CURLINFO_SPEED_DOWNLOAD */
3379         resultType = DoubleValue;
3380
3381         curlResult = curl_easy_getinfo(connection->connection,
3382                                        CURLINFO_SPEED_DOWNLOAD,
3383                                        &doubleValue);
3384         break;
3385 #endif
3386
3387 #if HAVE_DECL_CURLINFO_SPEED_UPLOAD
3388     case 10: /* CURLINFO_SPEED_UPLOAD */
3389         resultType = DoubleValue;
3390
3391         curlResult = curl_easy_getinfo(connection->connection,
3392                                        CURLINFO_SPEED_UPLOAD,
3393                                        &doubleValue);
3394         break;
3395
3396 #endif
3397
3398 #if HAVE_DECL_CURLINFO_HEADER_SIZE
3399     case 11: /* CURLINFO_HEADER_SIZE */
3400         resultType = LongValue;
3401
3402         curlResult = curl_easy_getinfo(connection->connection,
3403                                        CURLINFO_HEADER_SIZE,
3404                                        &longValue);
3405         break;
3406 #endif
3407
3408 #if HAVE_DECL_CURLINFO_REQUEST_SIZE
3409     case 12: /* CURLINFO_REQUEST_SIZE */
3410         resultType = LongValue;
3411
3412         curlResult = curl_easy_getinfo(connection->connection,
3413                                        CURLINFO_REQUEST_SIZE,
3414                                        &longValue);
3415         break;
3416 #endif
3417
3418 #if HAVE_DECL_CURLINFO_SSL_VERIFYRESULT
3419     case 13: /* CURLINFO_SSL_VERIFYRESULT */
3420         resultType = LongValue;
3421
3422         curlResult = curl_easy_getinfo(connection->connection,
3423                                        CURLINFO_SSL_VERIFYRESULT,
3424                                        &longValue);
3425         break;
3426 #endif
3427
3428 #if HAVE_DECL_CURLINFO_FILETIME
3429     case 14: /* CURLINFO_FILETIME */
3430         resultType = DoubleValue;
3431
3432         curlResult = curl_easy_getinfo(connection->connection,
3433                                        CURLINFO_FILETIME,
3434                                        &longValue);
3435
3436         doubleValue = longValue;
3437         break;
3438 #endif
3439
3440 #if HAVE_DECL_CURLINFO_CONTENT_LENGTH_DOWNLOAD
3441     case 15: /* CURLINFO_CONTENT_LENGTH_DOWNLOAD */
3442         resultType = DoubleValue;
3443
3444         curlResult = curl_easy_getinfo(connection->connection,
3445                                        CURLINFO_CONTENT_LENGTH_DOWNLOAD,
3446                                        &doubleValue);
3447         break;
3448 #endif
3449
3450 #if HAVE_DECL_CURLINFO_CONTENT_LENGTH_UPLOAD
3451     case 16: /* CURLINFO_CONTENT_LENGTH_UPLOAD */
3452         resultType = DoubleValue;
3453
3454         curlResult = curl_easy_getinfo(connection->connection,
3455                                        CURLINFO_CONTENT_LENGTH_UPLOAD,
3456                                        &doubleValue);
3457         break;
3458 #endif
3459
3460 #if HAVE_DECL_CURLINFO_STARTTRANSFER_TIME
3461     case 17: /* CURLINFO_STARTTRANSFER_TIME */
3462         resultType = DoubleValue;
3463
3464         curlResult = curl_easy_getinfo(connection->connection,
3465                                        CURLINFO_STARTTRANSFER_TIME,
3466                                        &doubleValue);
3467         break;
3468 #endif
3469
3470 #if HAVE_DECL_CURLINFO_CONTENT_TYPE
3471     case 18: /* CURLINFO_CONTENT_TYPE */
3472         resultType = StringValue;
3473
3474         curlResult = curl_easy_getinfo(connection->connection,
3475                                        CURLINFO_CONTENT_TYPE,
3476                                        &strValue);
3477         break;
3478 #endif
3479
3480 #if HAVE_DECL_CURLINFO_REDIRECT_TIME
3481     case 19: /* CURLINFO_REDIRECT_TIME */
3482         resultType = DoubleValue;
3483
3484         curlResult = curl_easy_getinfo(connection->connection,
3485                                        CURLINFO_REDIRECT_TIME,
3486                                        &doubleValue);
3487         break;
3488 #endif
3489
3490 #if HAVE_DECL_CURLINFO_REDIRECT_COUNT
3491     case 20: /* CURLINFO_REDIRECT_COUNT */
3492         resultType = LongValue;
3493
3494         curlResult = curl_easy_getinfo(connection->connection,
3495                                        CURLINFO_REDIRECT_COUNT,
3496                                        &longValue);
3497         break;
3498 #endif
3499
3500 #if HAVE_DECL_CURLINFO_PRIVATE
3501     case 21: /* CURLINFO_PRIVATE */
3502         resultType = StringValue;
3503
3504         curlResult = curl_easy_getinfo(connection->connection,
3505                                        CURLINFO_PRIVATE,
3506                                        &strValue);
3507         break;
3508 #endif
3509
3510 #if HAVE_DECL_CURLINFO_HTTP_CONNECTCODE
3511     case 22: /* CURLINFO_HTTP_CONNECTCODE */
3512         resultType = LongValue;
3513
3514         curlResult = curl_easy_getinfo(connection->connection,
3515                                        CURLINFO_HTTP_CONNECTCODE,
3516                                        &longValue);
3517         break;
3518 #endif
3519
3520 #if HAVE_DECL_CURLINFO_HTTPAUTH_AVAIL
3521     case 23: /* CURLINFO_HTTPAUTH_AVAIL */
3522         resultType = LongValue;
3523
3524         curlResult = curl_easy_getinfo(connection->connection,
3525                                        CURLINFO_HTTPAUTH_AVAIL,
3526                                        &longValue);
3527         break;
3528 #endif
3529
3530 #if HAVE_DECL_CURLINFO_PROXYAUTH_AVAIL
3531     case 24: /* CURLINFO_PROXYAUTH_AVAIL */
3532         resultType = LongValue;
3533
3534         curlResult = curl_easy_getinfo(connection->connection,
3535                                        CURLINFO_PROXYAUTH_AVAIL,
3536                                        &longValue);
3537         break;
3538 #endif
3539
3540 #if HAVE_DECL_CURLINFO_OS_ERRNO
3541     case 25: /* CURLINFO_OS_ERRNO */
3542         resultType = LongValue;
3543
3544         curlResult = curl_easy_getinfo(connection->connection,
3545                                        CURLINFO_OS_ERRNO,
3546                                        &longValue);
3547         break;
3548 #endif
3549
3550 #if HAVE_DECL_CURLINFO_NUM_CONNECTS
3551     case 26: /* CURLINFO_NUM_CONNECTS */
3552         resultType = LongValue;
3553
3554         curlResult = curl_easy_getinfo(connection->connection,
3555                                        CURLINFO_NUM_CONNECTS,
3556                                        &longValue);
3557         break;
3558 #endif
3559
3560 #if HAVE_DECL_CURLINFO_SSL_ENGINES
3561     case 27: /* CURLINFO_SSL_ENGINES */
3562         resultType = StringListValue;
3563
3564         curlResult = curl_easy_getinfo(connection->connection,
3565                                        CURLINFO_SSL_ENGINES,
3566                                        &stringListValue);
3567         break;
3568 #endif
3569
3570 #if HAVE_DECL_CURLINFO_COOKIELIST
3571     case 28: /* CURLINFO_COOKIELIST */
3572         resultType = StringListValue;
3573
3574         curlResult = curl_easy_getinfo(connection->connection,
3575                                        CURLINFO_COOKIELIST,
3576                                        &stringListValue);
3577         break;
3578 #endif
3579
3580 #if HAVE_DECL_CURLINFO_LASTSOCKET
3581     case 29: /* CURLINFO_LASTSOCKET */
3582         resultType = LongValue;
3583
3584         curlResult = curl_easy_getinfo(connection->connection,
3585                                        CURLINFO_LASTSOCKET,
3586                                        &longValue);
3587         break;
3588 #endif
3589
3590 #if HAVE_DECL_CURLINFO_FTP_ENTRY_PATH
3591     case 30: /* CURLINFO_FTP_ENTRY_PATH */
3592         resultType = StringValue;
3593
3594         curlResult = curl_easy_getinfo(connection->connection,
3595                                        CURLINFO_FTP_ENTRY_PATH,
3596                                        &strValue);
3597         break;
3598 #endif
3599
3600 #if HAVE_DECL_CURLINFO_REDIRECT_URL
3601     case 31: /* CURLINFO_REDIRECT_URL */
3602         resultType = StringValue;
3603
3604         curlResult = curl_easy_getinfo(connection->connection,
3605                                        CURLINFO_REDIRECT_URL,
3606                                        &strValue);
3607         break;
3608 #else
3609 #pragma message("libcurl does not provide CURLINFO_REDIRECT_URL")
3610 #endif
3611
3612 #if HAVE_DECL_CURLINFO_PRIMARY_IP
3613     case 32: /* CURLINFO_PRIMARY_IP */
3614         resultType = StringValue;
3615
3616         curlResult = curl_easy_getinfo(connection->connection,
3617                                        CURLINFO_PRIMARY_IP,
3618                                        &strValue);
3619         break;
3620 #else
3621 #pragma message("libcurl does not provide CURLINFO_PRIMARY_IP")
3622 #endif
3623
3624 #if HAVE_DECL_CURLINFO_LOCAL_IP
3625     case 33: /* CURLINFO_LOCAL_IP */
3626         resultType = StringValue;
3627
3628         curlResult = curl_easy_getinfo(connection->connection,
3629                                        CURLINFO_LOCAL_IP,
3630                                        &strValue);
3631         break;
3632 #else
3633 #pragma message("libcurl does not provide CURLINFO_LOCAL_IP")
3634 #endif
3635
3636 #if HAVE_DECL_CURLINFO_LOCAL_PORT
3637     case 34: /* CURLINFO_LOCAL_PORT */
3638         resultType = LongValue;
3639
3640         curlResult = curl_easy_getinfo(connection->connection,
3641                                        CURLINFO_LOCAL_PORT,
3642                                        &longValue);
3643         break;
3644 #else
3645 #pragma message("libcurl does not provide CURLINFO_LOCAL_PORT")
3646 #endif
3647
3648 #if HAVE_DECL_CURLINFO_CONDITION_UNMET
3649     case 35: /* CURLINFO_CONDITION_UNMET */
3650         resultType = LongValue;
3651
3652         curlResult = curl_easy_getinfo(connection->connection,
3653                                        CURLINFO_CONDITION_UNMET,
3654                                        &longValue);
3655         break;
3656 #else
3657 #pragma message("libcurl does not provide CURLINFO_CONDITION_UNMET")
3658 #endif
3659
3660     default:
3661         failwith("Invalid CURLINFO Option");
3662         break;
3663     }
3664
3665     if (curlResult != CURLE_OK)
3666         raiseError(connection, curlResult);
3667
3668     switch (resultType)
3669     {
3670     case StringValue:
3671         result = alloc(1, StringValue);
3672         Store_field(result, 0, copy_string(strValue?strValue:""));
3673         break;
3674
3675     case LongValue:
3676         result = alloc(1, LongValue);
3677         Store_field(result, 0, Val_long(longValue));
3678         break;
3679
3680     case DoubleValue:
3681         result = alloc(1, DoubleValue);
3682         Store_field(result, 0, copy_double(doubleValue));
3683         break;
3684
3685     case StringListValue:
3686         result = alloc(1, StringListValue);
3687         Store_field(result, 0, convertStringList(stringListValue));
3688         break;
3689     }
3690
3691     CAMLreturn(result);
3692 }
3693
3694 /**
3695  **  curl_escape helper function
3696  **/
3697
3698 CAMLprim value helper_curl_escape(value str)
3699 {
3700     CAMLparam1(str);
3701     CAMLlocal1(result);
3702     char *curlResult;
3703
3704     curlResult = curl_escape(String_val(str), string_length(str));
3705     result = copy_string(curlResult);
3706     free(curlResult);
3707
3708     CAMLreturn(result);
3709 }
3710
3711 /**
3712  **  curl_unescape helper function
3713  **/
3714
3715 CAMLprim value helper_curl_unescape(value str)
3716 {
3717     CAMLparam1(str);
3718     CAMLlocal1(result);
3719     char *curlResult;
3720
3721     curlResult = curl_unescape(String_val(str), string_length(str));
3722     result = copy_string(curlResult);
3723     free(curlResult);
3724
3725     CAMLreturn(result);
3726 }
3727
3728 /**
3729  **  curl_getdate helper function
3730  **/
3731
3732 CAMLprim value helper_curl_getdate(value str, value now)
3733 {
3734     CAMLparam2(str, now);
3735     CAMLlocal1(result);
3736     time_t curlResult;
3737     time_t curlNow;
3738
3739     curlNow = (time_t)Double_val(now);
3740     curlResult = curl_getdate(String_val(str), &curlNow);
3741     result = copy_double((double)curlResult);
3742
3743     CAMLreturn(result);
3744 }
3745
3746 /**
3747  **  curl_version helper function
3748  **/
3749
3750 CAMLprim value helper_curl_version(void)
3751 {
3752     CAMLparam0();
3753     CAMLlocal1(result);
3754     char *str;
3755
3756     str = curl_version();
3757     result = copy_string(str);
3758
3759     CAMLreturn(result);
3760 }
3761
3762 struct CURLVersionBitsMapping
3763 {
3764     int code;
3765     char *name;
3766 };
3767
3768 struct CURLVersionBitsMapping versionBitsMap[] =
3769 {
3770     {CURL_VERSION_IPV6, "ipv6"},
3771     {CURL_VERSION_KERBEROS4, "kerberos4"},
3772     {CURL_VERSION_SSL, "ssl"},
3773     {CURL_VERSION_LIBZ, "libz"},
3774     {CURL_VERSION_NTLM, "ntlm"},
3775     {CURL_VERSION_GSSNEGOTIATE, "gssnegotiate"},
3776     {CURL_VERSION_DEBUG, "debug"},
3777     {CURL_VERSION_CURLDEBUG, "curldebug"},
3778     {CURL_VERSION_ASYNCHDNS, "asynchdns"},
3779     {CURL_VERSION_SPNEGO, "spnego"},
3780     {CURL_VERSION_LARGEFILE, "largefile"},
3781     {CURL_VERSION_IDN, "idn"},
3782     {CURL_VERSION_SSPI, "sspi"},
3783     {CURL_VERSION_CONV, "conv"},
3784 #if HAVE_DECL_CURL_VERSION_TLSAUTH_SRP
3785     {CURL_VERSION_TLSAUTH_SRP, "srp"},
3786 #endif
3787 #if HAVE_DECL_CURL_VERSION_NTLM_WB
3788     {CURL_VERSION_NTLM_WB, "wb"},
3789 #endif
3790 };
3791
3792 CAMLprim value caml_curl_version_info(value unit)
3793 {
3794   CAMLparam1(unit);
3795   CAMLlocal4(v, vlist, vnum, vfeatures);
3796   const char* const* p = NULL;
3797   size_t i = 0;
3798
3799   curl_version_info_data* data = curl_version_info(CURLVERSION_NOW);
3800   if (NULL == data) caml_failwith("curl_version_info");
3801
3802   vlist = Val_emptylist;
3803   for (p = data->protocols; NULL != *p; p++)
3804   {
3805     vlist = Val_cons(vlist, caml_copy_string(*p));
3806   }
3807
3808   vfeatures = Val_emptylist;
3809   for (i = 0; i < sizeof(versionBitsMap)/sizeof(versionBitsMap[0]); i++)
3810   {
3811     if (0 != (versionBitsMap[i].code & data->features))
3812       vfeatures = Val_cons(vfeatures, caml_copy_string(versionBitsMap[i].name));
3813   }
3814
3815   vnum = caml_alloc_tuple(3);
3816   Store_field(vnum,0,Val_int(0xFF & (data->version_num >> 16)));
3817   Store_field(vnum,1,Val_int(0xFF & (data->version_num >> 8)));
3818   Store_field(vnum,2,Val_int(0xFF & (data->version_num)));
3819
3820   v = caml_alloc_tuple(12);
3821   Store_field(v,0,caml_copy_string(data->version));
3822   Store_field(v,1,vnum);
3823   Store_field(v,2,caml_copy_string(data->host));
3824   Store_field(v,3,vfeatures);
3825   Store_field(v,4,data->ssl_version ? Val_some(caml_copy_string(data->ssl_version)) : Val_none);
3826   Store_field(v,5,data->libz_version ? Val_some(caml_copy_string(data->libz_version)) : Val_none);
3827   Store_field(v,6,vlist);
3828   Store_field(v,7,caml_copy_string((data->age >= 1 && data->ares) ? data->ares : ""));
3829   Store_field(v,8,Val_int((data->age >= 1) ? data->ares_num : 0));
3830   Store_field(v,9,caml_copy_string((data->age >= 2 && data->libidn) ? data->libidn : ""));
3831   Store_field(v,10,Val_int((data->age >= 3) ? data->iconv_ver_num : 0));
3832   Store_field(v,11,caml_copy_string((data->age >= 3 && data->libssh_version) ? data->libssh_version : ""));
3833
3834   CAMLreturn(v);
3835 }
3836
3837 CAMLprim value caml_curl_pause(value conn, value opts)
3838 {
3839   CAMLparam2(conn, opts);
3840   CAMLlocal4(v, vlist, vnum, vfeatures);
3841   Connection *connection = Connection_val(conn);
3842   int bitmask = 0;
3843   CURLcode result;
3844
3845   while (Val_emptylist != opts)
3846   {
3847     switch (Int_val(Field(opts,0)))
3848     {
3849       case 0: bitmask |= CURLPAUSE_SEND; break;
3850       case 1: bitmask |= CURLPAUSE_RECV; break;
3851       case 2: bitmask |= CURLPAUSE_ALL; break;
3852       default: caml_failwith("wrong pauseOption");
3853     }
3854     opts = Field(opts,1);
3855   }
3856
3857   result = curl_easy_pause(connection->connection,bitmask);
3858   if (result != CURLE_OK)
3859     raiseError(connection, result);
3860
3861   CAMLreturn(Val_unit);
3862 }
3863
3864 /*
3865  * Curl multi stack support
3866  *
3867  * Exported thin wrappers for libcurl are prefixed with caml_curl_multi_.
3868  * Other exported functions are prefixed with caml_curlm_, some of them
3869  * can/should be decomposed into smaller parts.
3870  */
3871
3872 struct ml_multi_handle
3873 {
3874   CURLM* handle;
3875   value values; /* callbacks */
3876 };
3877
3878 enum
3879 {
3880   curlmopt_socket_function,
3881   curlmopt_timer_function,
3882
3883   /* last, not used */
3884   multi_values_total
3885 };
3886
3887 typedef struct ml_multi_handle ml_multi_handle;
3888
3889 #define Multi_val(v) (*(ml_multi_handle**)Data_custom_val(v))
3890 #define CURLM_val(v) (Multi_val(v)->handle)
3891
3892 static struct custom_operations curl_multi_ops = {
3893   "ygrek.curl_multi",
3894   custom_finalize_default,
3895   custom_compare_default,
3896   custom_hash_default,
3897   custom_serialize_default,
3898   custom_deserialize_default,
3899 #if defined(custom_compare_ext_default)
3900   custom_compare_ext_default,
3901 #endif
3902 };
3903
3904 CAMLprim value caml_curl_multi_init(value unit)
3905 {
3906   CAMLparam1(unit);
3907   CAMLlocal1(v);
3908   ml_multi_handle* multi = (ml_multi_handle*)caml_stat_alloc(sizeof(ml_multi_handle));
3909   CURLM* h = curl_multi_init();
3910
3911   if (!h)
3912   {
3913     caml_stat_free(multi);
3914     failwith("caml_curl_multi_init");
3915   }
3916
3917   multi->handle = h;
3918   multi->values = caml_alloc(multi_values_total, 0);
3919   caml_register_generational_global_root(&multi->values);
3920
3921   v = caml_alloc_custom(&curl_multi_ops, sizeof(ml_multi_handle*), 0, 1);
3922   Multi_val(v) = multi;
3923
3924   CAMLreturn(v);
3925 }
3926
3927 CAMLprim value caml_curl_multi_cleanup(value handle)
3928 {
3929   CAMLparam1(handle);
3930   ml_multi_handle* h = Multi_val(handle);
3931
3932   if (NULL == h)
3933     CAMLreturn(Val_unit);
3934
3935   caml_remove_generational_global_root(&h->values);
3936
3937   if (CURLM_OK != curl_multi_cleanup(h->handle))
3938     failwith("caml_curl_multi_cleanup");
3939
3940   Multi_val(handle) = (ml_multi_handle*)NULL;
3941
3942   CAMLreturn(Val_unit);
3943 }
3944
3945 static CURL* curlm_remove_finished(CURLM* multi_handle, CURLcode* result)
3946 {
3947   int msgs_in_queue = 0;
3948
3949   while (1)
3950   {
3951     CURLMsg* msg = curl_multi_info_read(multi_handle, &msgs_in_queue);
3952     if (NULL == msg) return NULL;
3953     if (CURLMSG_DONE == msg->msg)
3954     {
3955       CURL* easy_handle = msg->easy_handle;
3956       if (result) *result = msg->data.result;
3957       if (CURLM_OK != curl_multi_remove_handle(multi_handle, easy_handle))
3958       {
3959         /*failwith("curlm_remove_finished");*/
3960       }
3961       return easy_handle;
3962     }
3963   }
3964 }
3965
3966 CAMLprim value caml_curlm_remove_finished(value v_multi)
3967 {
3968   CAMLparam1(v_multi);
3969   CAMLlocal2(v_easy, v_tuple);
3970   CURL* handle;
3971   CURLM* multi_handle;
3972   CURLcode result;
3973   Connection* conn = NULL;
3974
3975   multi_handle = CURLM_val(v_multi);
3976
3977   caml_enter_blocking_section();
3978   handle = curlm_remove_finished(multi_handle,&result);
3979   caml_leave_blocking_section();
3980
3981   if (NULL == handle)
3982   {
3983     CAMLreturn(Val_none);
3984   }
3985   else
3986   {
3987     conn = findConnection(handle);
3988     if (conn->curl_ERRORBUFFER != NULL)
3989     {
3990         Store_field(Field(conn->ocamlValues, Ocaml_ERRORBUFFER), 0, caml_copy_string(conn->curl_ERRORBUFFER));
3991     }
3992     conn->refcount--;
3993     /* NB: same handle, but different block */
3994     v_easy = caml_curl_alloc(conn);
3995     v_tuple = caml_alloc(2, 0);
3996     Store_field(v_tuple,0,v_easy);
3997     Store_field(v_tuple,1,Val_int(result)); /* CURLcode */
3998     CAMLreturn(Val_some(v_tuple));
3999   }
4000 }
4001
4002 static int curlm_wait_data(CURLM* multi_handle)
4003 {
4004         struct timeval timeout;
4005   CURLMcode ret;
4006
4007         fd_set fdread;
4008         fd_set fdwrite;
4009         fd_set fdexcep;
4010         int maxfd = -1;
4011
4012         FD_ZERO(&fdread);
4013         FD_ZERO(&fdwrite);
4014         FD_ZERO(&fdexcep);
4015
4016         /* set a suitable timeout */
4017         timeout.tv_sec = 1;
4018         timeout.tv_usec = 0;
4019
4020         /* get file descriptors from the transfers */
4021         ret = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
4022
4023         if (ret == CURLM_OK && maxfd >= 0)
4024         {
4025                 int rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
4026                 if (-1 != rc) return 0;
4027         }
4028         return 1;
4029 }
4030
4031 CAMLprim value caml_curlm_wait_data(value v_multi)
4032 {
4033   CAMLparam1(v_multi);
4034   int ret;
4035   CURLM* h = CURLM_val(v_multi);
4036
4037   caml_enter_blocking_section();
4038   ret = curlm_wait_data(h);
4039   caml_leave_blocking_section();
4040
4041   CAMLreturn(Val_bool(0 == ret));
4042 }
4043
4044 CAMLprim value caml_curl_multi_add_handle(value v_multi, value v_easy)
4045 {
4046   CAMLparam2(v_multi,v_easy);
4047   CURLM* multi = CURLM_val(v_multi);
4048   Connection* conn = Connection_val(v_easy);
4049
4050   /* prevent collection of OCaml value while the easy handle is used
4051    and may invoke callbacks registered on OCaml side */
4052   conn->refcount++;
4053
4054   /* may invoke callbacks so need to be consistent with locks */
4055   caml_enter_blocking_section();
4056   if (CURLM_OK != curl_multi_add_handle(multi, conn->connection))
4057   {
4058     conn->refcount--; /* not added, revert */
4059     caml_leave_blocking_section();
4060     failwith("caml_curl_multi_add_handle");
4061   }
4062   caml_leave_blocking_section();
4063
4064   CAMLreturn(Val_unit);
4065 }
4066
4067 CAMLprim value caml_curl_multi_remove_handle(value v_multi, value v_easy)
4068 {
4069   CAMLparam2(v_multi,v_easy);
4070   CURLM* multi = CURLM_val(v_multi);
4071   Connection* conn = Connection_val(v_easy);
4072
4073   /* may invoke callbacks so need to be consistent with locks */
4074   caml_enter_blocking_section();
4075   if (CURLM_OK != curl_multi_remove_handle(multi, conn->connection))
4076   {
4077     caml_leave_blocking_section();
4078     failwith("caml_curl_multi_remove_handle");
4079   }
4080   conn->refcount--;
4081   caml_leave_blocking_section();
4082
4083   CAMLreturn(Val_unit);
4084 }
4085
4086 CAMLprim value caml_curl_multi_perform_all(value v_multi)
4087 {
4088   CAMLparam1(v_multi);
4089   int still_running = 0;
4090   CURLM* h = CURLM_val(v_multi);
4091
4092   caml_enter_blocking_section();
4093   while (CURLM_CALL_MULTI_PERFORM == curl_multi_perform(h, &still_running));
4094   caml_leave_blocking_section();
4095
4096   CAMLreturn(Val_int(still_running));
4097 }
4098
4099 CAMLprim value helper_curl_easy_strerror(value v_code)
4100 {
4101   CAMLparam1(v_code);
4102   CAMLreturn(caml_copy_string(curl_easy_strerror(Int_val(v_code))));
4103 }
4104
4105 /*
4106  * Wrappers for the curl_multi_socket_action infrastructure
4107  * Based on curl hiperfifo.c example
4108  */
4109
4110 #ifdef _WIN32
4111 #ifndef Val_socket
4112 #define Val_socket(v) win_alloc_socket(v)
4113 #endif
4114 #ifndef Socket_val
4115 #error Socket_val not defined in unixsupport.h
4116 #endif
4117 #else /* _WIN32 */
4118 #ifndef Socket_val
4119 #define Socket_val(v) Long_val(v)
4120 #endif
4121 #ifndef Val_socket
4122 #define Val_socket(v) Val_int(v)
4123 #endif
4124 #endif  /* _WIN32 */
4125
4126 static void raise_multi_error(char const* msg)
4127 {
4128   static value* exception = NULL;
4129
4130   if (NULL == exception)
4131   {
4132     exception = caml_named_value("Curl.Multi.Error");
4133     if (NULL == exception) caml_invalid_argument("Curl.Multi.Error");
4134   }
4135
4136   caml_raise_with_string(*exception, msg);
4137 }
4138
4139 static void check_mcode(CURLMcode code)
4140 {
4141   char const *s = NULL;
4142   switch (code)
4143   {
4144     case CURLM_OK                  : return;
4145     case CURLM_CALL_MULTI_PERFORM  : s="CURLM_CALL_MULTI_PERFORM"; break;
4146     case CURLM_BAD_HANDLE          : s="CURLM_BAD_HANDLE";         break;
4147     case CURLM_BAD_EASY_HANDLE     : s="CURLM_BAD_EASY_HANDLE";    break;
4148     case CURLM_OUT_OF_MEMORY       : s="CURLM_OUT_OF_MEMORY";      break;
4149     case CURLM_INTERNAL_ERROR      : s="CURLM_INTERNAL_ERROR";     break;
4150     case CURLM_UNKNOWN_OPTION      : s="CURLM_UNKNOWN_OPTION";     break;
4151     case CURLM_LAST                : s="CURLM_LAST";               break;
4152     case CURLM_BAD_SOCKET          : s="CURLM_BAD_SOCKET";         break;
4153     default                        : s="CURLM_unknown";            break;
4154   }
4155   raise_multi_error(s);
4156 }
4157
4158 CAMLprim value caml_curl_multi_socket_action(value v_multi, value v_fd, value v_kind)
4159 {
4160   CAMLparam3(v_multi, v_fd, v_kind);
4161   CURLM* h = CURLM_val(v_multi);
4162   int still_running = 0;
4163   CURLMcode rc = CURLM_OK;
4164   curl_socket_t socket;
4165   int kind = 0;
4166
4167   if (Val_none == v_fd)
4168   {
4169     socket = CURL_SOCKET_TIMEOUT;
4170   }
4171   else
4172   {
4173     socket = Socket_val(Field(v_fd, 0));
4174   }
4175
4176   switch (Int_val(v_kind))
4177   {
4178     case 0 : break;
4179     case 1 : kind |= CURL_CSELECT_IN; break;
4180     case 2 : kind |= CURL_CSELECT_OUT; break;
4181     case 3 : kind |= CURL_CSELECT_IN | CURL_CSELECT_OUT; break;
4182     default:
4183       raise_multi_error("caml_curl_multi_socket_action");
4184   }
4185
4186 /*  fprintf(stdout,"fd %u kind %u\n",socket, kind); fflush(stdout); */
4187
4188   caml_enter_blocking_section();
4189   do {
4190     rc = curl_multi_socket_action(h, socket, kind, &still_running);
4191   } while (rc == CURLM_CALL_MULTI_PERFORM);
4192   caml_leave_blocking_section();
4193
4194   check_mcode(rc);
4195
4196   CAMLreturn(Val_int(still_running));
4197 }
4198
4199 CAMLprim value caml_curl_multi_socket_all(value v_multi)
4200 {
4201   CAMLparam1(v_multi);
4202   int still_running = 0;
4203   CURLMcode rc = CURLM_OK;
4204   CURLM* h = CURLM_val(v_multi);
4205
4206   caml_enter_blocking_section();
4207   do {
4208     rc = curl_multi_socket_all(h, &still_running);
4209   } while (rc == CURLM_CALL_MULTI_PERFORM);
4210   caml_leave_blocking_section();
4211
4212   check_mcode(rc);
4213
4214   CAMLreturn(Val_int(still_running));
4215 }
4216
4217 static int curlm_sock_cb_nolock(CURL *e, curl_socket_t sock, int what, ml_multi_handle* multi, void *sockp)
4218 {
4219   CAMLparam0();
4220   CAMLlocal2(v_what,csock);
4221   (void)e;
4222   (void)sockp; /* not used */
4223
4224   /* v_what = Val_int(what); */
4225   switch (what)
4226   {
4227     case CURL_POLL_NONE   : v_what = Val_int(0); break;
4228     case CURL_POLL_IN     : v_what = Val_int(1); break;
4229     case CURL_POLL_OUT    : v_what = Val_int(2); break;
4230     case CURL_POLL_INOUT  : v_what = Val_int(3); break;
4231     case CURL_POLL_REMOVE : v_what = Val_int(4); break;
4232     default:
4233       fprintf(stderr, "curlm_sock_cb sock=%d what=%d\n", sock, what);
4234       fflush(stderr);
4235       raise_multi_error("curlm_sock_cb"); /* FIXME exception from callback */
4236   }
4237   csock=Val_socket(sock);
4238   caml_callback2(Field(multi->values,curlmopt_socket_function),
4239                  csock, v_what);
4240
4241   CAMLreturn(0);
4242 }
4243
4244 static int curlm_sock_cb(CURL *e, curl_socket_t sock, int what, void *cbp, void *sockp)
4245 {
4246   int ret;
4247   caml_leave_blocking_section();
4248   ret = curlm_sock_cb_nolock(e, sock, what, (ml_multi_handle*)cbp, sockp);
4249   caml_enter_blocking_section();
4250   return ret;
4251 }
4252
4253 CAMLprim value caml_curl_multi_socketfunction(value v_multi, value v_cb)
4254 {
4255   CAMLparam2(v_multi, v_cb);
4256   ml_multi_handle* multi = Multi_val(v_multi);
4257
4258   Store_field(multi->values, curlmopt_socket_function, v_cb);
4259
4260   curl_multi_setopt(multi->handle, CURLMOPT_SOCKETFUNCTION, curlm_sock_cb);
4261   curl_multi_setopt(multi->handle, CURLMOPT_SOCKETDATA, multi);
4262
4263   CAMLreturn(Val_unit);
4264 }
4265
4266 static void curlm_timer_cb_nolock(ml_multi_handle *multi, long timeout_ms)
4267 {
4268   CAMLparam0();
4269   caml_callback(Field(multi->values,curlmopt_timer_function), Val_long(timeout_ms));
4270   CAMLreturn0;
4271 }
4272
4273 static int curlm_timer_cb(CURLM *multi, long timeout_ms, void *userp)
4274 {
4275   (void)multi;
4276
4277   caml_leave_blocking_section();
4278   curlm_timer_cb_nolock((ml_multi_handle*)userp, timeout_ms);
4279   caml_enter_blocking_section();
4280   return 0;
4281 }
4282
4283 CAMLprim value caml_curl_multi_timerfunction(value v_multi, value v_cb)
4284 {
4285   CAMLparam2(v_multi, v_cb);
4286   ml_multi_handle* multi = Multi_val(v_multi);
4287
4288   Store_field(multi->values, curlmopt_timer_function, v_cb);
4289
4290   curl_multi_setopt(multi->handle, CURLMOPT_TIMERFUNCTION, curlm_timer_cb);
4291   curl_multi_setopt(multi->handle, CURLMOPT_TIMERDATA, multi);
4292
4293   CAMLreturn(Val_unit);
4294 }
4295
4296 CAMLprim value caml_curl_multi_timeout(value v_multi)
4297 {
4298   CAMLparam1(v_multi);
4299   long ms = 0;
4300   CURLMcode rc = CURLM_OK;
4301   ml_multi_handle* multi = Multi_val(v_multi);
4302
4303   rc = curl_multi_timeout(multi->handle, &ms);
4304
4305   check_mcode(rc);
4306
4307   CAMLreturn(Val_long(ms));
4308 }