1 /*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 2004 - 2015, Daniel Stenberg, <daniel (at) haxx.se>, et al. 9 * 10 * This software is licensed as described in the file COPYING, which 11 * you should have received as part of this distribution. The terms 12 * are also available at http://curl.haxx.se/docs/copyright.html. 13 * 14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell 15 * copies of the Software, and permit persons to whom the Software is 16 * furnished to do so, under the terms of the COPYING file. 17 * 18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 19 * KIND, either express or implied. 20 * 21 ***************************************************************************/ 22 23 #include "curl_setup.h" 24 25 #ifdef HAVE_STRERROR_R 26 # if (!defined(HAVE_POSIX_STRERROR_R) && \ 27 !defined(HAVE_GLIBC_STRERROR_R) && \ 28 !defined(HAVE_VXWORKS_STRERROR_R)) || \ 29 (defined(HAVE_POSIX_STRERROR_R) && defined(HAVE_VXWORKS_STRERROR_R)) || \ 30 (defined(HAVE_GLIBC_STRERROR_R) && defined(HAVE_VXWORKS_STRERROR_R)) || \ 31 (defined(HAVE_POSIX_STRERROR_R) && defined(HAVE_GLIBC_STRERROR_R)) 32 # error "strerror_r MUST be either POSIX, glibc or vxworks-style" 33 # endif 34 #endif 35 36 #include <curl/curl.h> 37 38 #ifdef USE_LIBIDN 39 #include <idna.h> 40 #endif 41 42 #include "strerror.h" 43 #include "curl_printf.h" 44 #include "curl_memory.h" 45 /* The last #include file should be: */ 46 #include "memdebug.h" 47 48 const char * 49 curl_easy_strerror(CURLcode error) 50 { 51 #ifndef CURL_DISABLE_VERBOSE_STRINGS 52 switch (error) { 53 case CURLE_OK: 54 return "No error"; 55 56 case CURLE_UNSUPPORTED_PROTOCOL: 57 return "Unsupported protocol"; 58 59 case CURLE_FAILED_INIT: 60 return "Failed initialization"; 61 62 case CURLE_URL_MALFORMAT: 63 return "URL using bad/illegal format or missing URL"; 64 65 case CURLE_NOT_BUILT_IN: 66 return "A requested feature, protocol or option was not found built-in in" 67 " this libcurl due to a build-time decision."; 68 69 case CURLE_COULDNT_RESOLVE_PROXY: 70 return "Couldn't resolve proxy name"; 71 72 case CURLE_COULDNT_RESOLVE_HOST: 73 return "Couldn't resolve host name"; 74 75 case CURLE_COULDNT_CONNECT: 76 return "Couldn't connect to server"; 77 78 case CURLE_FTP_WEIRD_SERVER_REPLY: 79 return "FTP: weird server reply"; 80 81 case CURLE_REMOTE_ACCESS_DENIED: 82 return "Access denied to remote resource"; 83 84 case CURLE_FTP_ACCEPT_FAILED: 85 return "FTP: The server failed to connect to data port"; 86 87 case CURLE_FTP_ACCEPT_TIMEOUT: 88 return "FTP: Accepting server connect has timed out"; 89 90 case CURLE_FTP_PRET_FAILED: 91 return "FTP: The server did not accept the PRET command."; 92 93 case CURLE_FTP_WEIRD_PASS_REPLY: 94 return "FTP: unknown PASS reply"; 95 96 case CURLE_FTP_WEIRD_PASV_REPLY: 97 return "FTP: unknown PASV reply"; 98 99 case CURLE_FTP_WEIRD_227_FORMAT: 100 return "FTP: unknown 227 response format"; 101 102 case CURLE_FTP_CANT_GET_HOST: 103 return "FTP: can't figure out the host in the PASV response"; 104 105 case CURLE_HTTP2: 106 return "Error in the HTTP2 framing layer"; 107 108 case CURLE_FTP_COULDNT_SET_TYPE: 109 return "FTP: couldn't set file type"; 110 111 case CURLE_PARTIAL_FILE: 112 return "Transferred a partial file"; 113 114 case CURLE_FTP_COULDNT_RETR_FILE: 115 return "FTP: couldn't retrieve (RETR failed) the specified file"; 116 117 case CURLE_QUOTE_ERROR: 118 return "Quote command returned error"; 119 120 case CURLE_HTTP_RETURNED_ERROR: 121 return "HTTP response code said error"; 122 123 case CURLE_WRITE_ERROR: 124 return "Failed writing received data to disk/application"; 125 126 case CURLE_UPLOAD_FAILED: 127 return "Upload failed (at start/before it took off)"; 128 129 case CURLE_READ_ERROR: 130 return "Failed to open/read local data from file/application"; 131 132 case CURLE_OUT_OF_MEMORY: 133 return "Out of memory"; 134 135 case CURLE_OPERATION_TIMEDOUT: 136 return "Timeout was reached"; 137 138 case CURLE_FTP_PORT_FAILED: 139 return "FTP: command PORT failed"; 140 141 case CURLE_FTP_COULDNT_USE_REST: 142 return "FTP: command REST failed"; 143 144 case CURLE_RANGE_ERROR: 145 return "Requested range was not delivered by the server"; 146 147 case CURLE_HTTP_POST_ERROR: 148 return "Internal problem setting up the POST"; 149 150 case CURLE_SSL_CONNECT_ERROR: 151 return "SSL connect error"; 152 153 case CURLE_BAD_DOWNLOAD_RESUME: 154 return "Couldn't resume download"; 155 156 case CURLE_FILE_COULDNT_READ_FILE: 157 return "Couldn't read a file:// file"; 158 159 case CURLE_LDAP_CANNOT_BIND: 160 return "LDAP: cannot bind"; 161 162 case CURLE_LDAP_SEARCH_FAILED: 163 return "LDAP: search failed"; 164 165 case CURLE_FUNCTION_NOT_FOUND: 166 return "A required function in the library was not found"; 167 168 case CURLE_ABORTED_BY_CALLBACK: 169 return "Operation was aborted by an application callback"; 170 171 case CURLE_BAD_FUNCTION_ARGUMENT: 172 return "A libcurl function was given a bad argument"; 173 174 case CURLE_INTERFACE_FAILED: 175 return "Failed binding local connection end"; 176 177 case CURLE_TOO_MANY_REDIRECTS : 178 return "Number of redirects hit maximum amount"; 179 180 case CURLE_UNKNOWN_OPTION: 181 return "An unknown option was passed in to libcurl"; 182 183 case CURLE_TELNET_OPTION_SYNTAX : 184 return "Malformed telnet option"; 185 186 case CURLE_PEER_FAILED_VERIFICATION: 187 return "SSL peer certificate or SSH remote key was not OK"; 188 189 case CURLE_GOT_NOTHING: 190 return "Server returned nothing (no headers, no data)"; 191 192 case CURLE_SSL_ENGINE_NOTFOUND: 193 return "SSL crypto engine not found"; 194 195 case CURLE_SSL_ENGINE_SETFAILED: 196 return "Can not set SSL crypto engine as default"; 197 198 case CURLE_SSL_ENGINE_INITFAILED: 199 return "Failed to initialise SSL crypto engine"; 200 201 case CURLE_SEND_ERROR: 202 return "Failed sending data to the peer"; 203 204 case CURLE_RECV_ERROR: 205 return "Failure when receiving data from the peer"; 206 207 case CURLE_SSL_CERTPROBLEM: 208 return "Problem with the local SSL certificate"; 209 210 case CURLE_SSL_CIPHER: 211 return "Couldn't use specified SSL cipher"; 212 213 case CURLE_SSL_CACERT: 214 return "Peer certificate cannot be authenticated with given CA " 215 "certificates"; 216 217 case CURLE_SSL_CACERT_BADFILE: 218 return "Problem with the SSL CA cert (path? access rights?)"; 219 220 case CURLE_BAD_CONTENT_ENCODING: 221 return "Unrecognized or bad HTTP Content or Transfer-Encoding"; 222 223 case CURLE_LDAP_INVALID_URL: 224 return "Invalid LDAP URL"; 225 226 case CURLE_FILESIZE_EXCEEDED: 227 return "Maximum file size exceeded"; 228 229 case CURLE_USE_SSL_FAILED: 230 return "Requested SSL level failed"; 231 232 case CURLE_SSL_SHUTDOWN_FAILED: 233 return "Failed to shut down the SSL connection"; 234 235 case CURLE_SSL_CRL_BADFILE: 236 return "Failed to load CRL file (path? access rights?, format?)"; 237 238 case CURLE_SSL_ISSUER_ERROR: 239 return "Issuer check against peer certificate failed"; 240 241 case CURLE_SEND_FAIL_REWIND: 242 return "Send failed since rewinding of the data stream failed"; 243 244 case CURLE_LOGIN_DENIED: 245 return "Login denied"; 246 247 case CURLE_TFTP_NOTFOUND: 248 return "TFTP: File Not Found"; 249 250 case CURLE_TFTP_PERM: 251 return "TFTP: Access Violation"; 252 253 case CURLE_REMOTE_DISK_FULL: 254 return "Disk full or allocation exceeded"; 255 256 case CURLE_TFTP_ILLEGAL: 257 return "TFTP: Illegal operation"; 258 259 case CURLE_TFTP_UNKNOWNID: 260 return "TFTP: Unknown transfer ID"; 261 262 case CURLE_REMOTE_FILE_EXISTS: 263 return "Remote file already exists"; 264 265 case CURLE_TFTP_NOSUCHUSER: 266 return "TFTP: No such user"; 267 268 case CURLE_CONV_FAILED: 269 return "Conversion failed"; 270 271 case CURLE_CONV_REQD: 272 return "Caller must register CURLOPT_CONV_ callback options"; 273 274 case CURLE_REMOTE_FILE_NOT_FOUND: 275 return "Remote file not found"; 276 277 case CURLE_SSH: 278 return "Error in the SSH layer"; 279 280 case CURLE_AGAIN: 281 return "Socket not ready for send/recv"; 282 283 case CURLE_RTSP_CSEQ_ERROR: 284 return "RTSP CSeq mismatch or invalid CSeq"; 285 286 case CURLE_RTSP_SESSION_ERROR: 287 return "RTSP session error"; 288 289 case CURLE_FTP_BAD_FILE_LIST: 290 return "Unable to parse FTP file list"; 291 292 case CURLE_CHUNK_FAILED: 293 return "Chunk callback failed"; 294 295 case CURLE_NO_CONNECTION_AVAILABLE: 296 return "The max connection limit is reached"; 297 298 case CURLE_SSL_PINNEDPUBKEYNOTMATCH: 299 return "SSL public key does not match pinned public key"; 300 301 case CURLE_SSL_INVALIDCERTSTATUS: 302 return "SSL server certificate status verification FAILED"; 303 304 /* error codes not used by current libcurl */ 305 case CURLE_OBSOLETE20: 306 case CURLE_OBSOLETE24: 307 case CURLE_OBSOLETE29: 308 case CURLE_OBSOLETE32: 309 case CURLE_OBSOLETE40: 310 case CURLE_OBSOLETE44: 311 case CURLE_OBSOLETE46: 312 case CURLE_OBSOLETE50: 313 case CURLE_OBSOLETE57: 314 case CURL_LAST: 315 break; 316 } 317 /* 318 * By using a switch, gcc -Wall will complain about enum values 319 * which do not appear, helping keep this function up-to-date. 320 * By using gcc -Wall -Werror, you can't forget. 321 * 322 * A table would not have the same benefit. Most compilers will 323 * generate code very similar to a table in any case, so there 324 * is little performance gain from a table. And something is broken 325 * for the user's application, anyways, so does it matter how fast 326 * it _doesn't_ work? 327 * 328 * The line number for the error will be near this comment, which 329 * is why it is here, and not at the start of the switch. 330 */ 331 return "Unknown error"; 332 #else 333 if(!error) 334 return "No error"; 335 else 336 return "Error"; 337 #endif 338 } 339 340 const char * 341 curl_multi_strerror(CURLMcode error) 342 { 343 #ifndef CURL_DISABLE_VERBOSE_STRINGS 344 switch (error) { 345 case CURLM_CALL_MULTI_PERFORM: 346 return "Please call curl_multi_perform() soon"; 347 348 case CURLM_OK: 349 return "No error"; 350 351 case CURLM_BAD_HANDLE: 352 return "Invalid multi handle"; 353 354 case CURLM_BAD_EASY_HANDLE: 355 return "Invalid easy handle"; 356 357 case CURLM_OUT_OF_MEMORY: 358 return "Out of memory"; 359 360 case CURLM_INTERNAL_ERROR: 361 return "Internal error"; 362 363 case CURLM_BAD_SOCKET: 364 return "Invalid socket argument"; 365 366 case CURLM_UNKNOWN_OPTION: 367 return "Unknown option"; 368 369 case CURLM_ADDED_ALREADY: 370 return "The easy handle is already added to a multi handle"; 371 372 case CURLM_LAST: 373 break; 374 } 375 376 return "Unknown error"; 377 #else 378 if(error == CURLM_OK) 379 return "No error"; 380 else 381 return "Error"; 382 #endif 383 } 384 385 const char * 386 curl_share_strerror(CURLSHcode error) 387 { 388 #ifndef CURL_DISABLE_VERBOSE_STRINGS 389 switch (error) { 390 case CURLSHE_OK: 391 return "No error"; 392 393 case CURLSHE_BAD_OPTION: 394 return "Unknown share option"; 395 396 case CURLSHE_IN_USE: 397 return "Share currently in use"; 398 399 case CURLSHE_INVALID: 400 return "Invalid share handle"; 401 402 case CURLSHE_NOMEM: 403 return "Out of memory"; 404 405 case CURLSHE_NOT_BUILT_IN: 406 return "Feature not enabled in this library"; 407 408 case CURLSHE_LAST: 409 break; 410 } 411 412 return "CURLSHcode unknown"; 413 #else 414 if(error == CURLSHE_OK) 415 return "No error"; 416 else 417 return "Error"; 418 #endif 419 } 420 421 #ifdef USE_WINSOCK 422 423 /* This function handles most / all (?) Winsock errors cURL is able to produce. 424 */ 425 static const char * 426 get_winsock_error (int err, char *buf, size_t len) 427 { 428 const char *p; 429 430 #ifndef CURL_DISABLE_VERBOSE_STRINGS 431 switch (err) { 432 case WSAEINTR: 433 p = "Call interrupted"; 434 break; 435 case WSAEBADF: 436 p = "Bad file"; 437 break; 438 case WSAEACCES: 439 p = "Bad access"; 440 break; 441 case WSAEFAULT: 442 p = "Bad argument"; 443 break; 444 case WSAEINVAL: 445 p = "Invalid arguments"; 446 break; 447 case WSAEMFILE: 448 p = "Out of file descriptors"; 449 break; 450 case WSAEWOULDBLOCK: 451 p = "Call would block"; 452 break; 453 case WSAEINPROGRESS: 454 case WSAEALREADY: 455 p = "Blocking call in progress"; 456 break; 457 case WSAENOTSOCK: 458 p = "Descriptor is not a socket"; 459 break; 460 case WSAEDESTADDRREQ: 461 p = "Need destination address"; 462 break; 463 case WSAEMSGSIZE: 464 p = "Bad message size"; 465 break; 466 case WSAEPROTOTYPE: 467 p = "Bad protocol"; 468 break; 469 case WSAENOPROTOOPT: 470 p = "Protocol option is unsupported"; 471 break; 472 case WSAEPROTONOSUPPORT: 473 p = "Protocol is unsupported"; 474 break; 475 case WSAESOCKTNOSUPPORT: 476 p = "Socket is unsupported"; 477 break; 478 case WSAEOPNOTSUPP: 479 p = "Operation not supported"; 480 break; 481 case WSAEAFNOSUPPORT: 482 p = "Address family not supported"; 483 break; 484 case WSAEPFNOSUPPORT: 485 p = "Protocol family not supported"; 486 break; 487 case WSAEADDRINUSE: 488 p = "Address already in use"; 489 break; 490 case WSAEADDRNOTAVAIL: 491 p = "Address not available"; 492 break; 493 case WSAENETDOWN: 494 p = "Network down"; 495 break; 496 case WSAENETUNREACH: 497 p = "Network unreachable"; 498 break; 499 case WSAENETRESET: 500 p = "Network has been reset"; 501 break; 502 case WSAECONNABORTED: 503 p = "Connection was aborted"; 504 break; 505 case WSAECONNRESET: 506 p = "Connection was reset"; 507 break; 508 case WSAENOBUFS: 509 p = "No buffer space"; 510 break; 511 case WSAEISCONN: 512 p = "Socket is already connected"; 513 break; 514 case WSAENOTCONN: 515 p = "Socket is not connected"; 516 break; 517 case WSAESHUTDOWN: 518 p = "Socket has been shut down"; 519 break; 520 case WSAETOOMANYREFS: 521 p = "Too many references"; 522 break; 523 case WSAETIMEDOUT: 524 p = "Timed out"; 525 break; 526 case WSAECONNREFUSED: 527 p = "Connection refused"; 528 break; 529 case WSAELOOP: 530 p = "Loop??"; 531 break; 532 case WSAENAMETOOLONG: 533 p = "Name too long"; 534 break; 535 case WSAEHOSTDOWN: 536 p = "Host down"; 537 break; 538 case WSAEHOSTUNREACH: 539 p = "Host unreachable"; 540 break; 541 case WSAENOTEMPTY: 542 p = "Not empty"; 543 break; 544 case WSAEPROCLIM: 545 p = "Process limit reached"; 546 break; 547 case WSAEUSERS: 548 p = "Too many users"; 549 break; 550 case WSAEDQUOT: 551 p = "Bad quota"; 552 break; 553 case WSAESTALE: 554 p = "Something is stale"; 555 break; 556 case WSAEREMOTE: 557 p = "Remote error"; 558 break; 559 #ifdef WSAEDISCON /* missing in SalfordC! */ 560 case WSAEDISCON: 561 p = "Disconnected"; 562 break; 563 #endif 564 /* Extended Winsock errors */ 565 case WSASYSNOTREADY: 566 p = "Winsock library is not ready"; 567 break; 568 case WSANOTINITIALISED: 569 p = "Winsock library not initialised"; 570 break; 571 case WSAVERNOTSUPPORTED: 572 p = "Winsock version not supported"; 573 break; 574 575 /* getXbyY() errors (already handled in herrmsg): 576 * Authoritative Answer: Host not found */ 577 case WSAHOST_NOT_FOUND: 578 p = "Host not found"; 579 break; 580 581 /* Non-Authoritative: Host not found, or SERVERFAIL */ 582 case WSATRY_AGAIN: 583 p = "Host not found, try again"; 584 break; 585 586 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */ 587 case WSANO_RECOVERY: 588 p = "Unrecoverable error in call to nameserver"; 589 break; 590 591 /* Valid name, no data record of requested type */ 592 case WSANO_DATA: 593 p = "No data record of requested type"; 594 break; 595 596 default: 597 return NULL; 598 } 599 #else 600 if(!err) 601 return NULL; 602 else 603 p = "error"; 604 #endif 605 strncpy (buf, p, len); 606 buf [len-1] = '\0'; 607 return buf; 608 } 609 #endif /* USE_WINSOCK */ 610 611 /* 612 * Our thread-safe and smart strerror() replacement. 613 * 614 * The 'err' argument passed in to this function MUST be a true errno number 615 * as reported on this system. We do no range checking on the number before 616 * we pass it to the "number-to-message" conversion function and there might 617 * be systems that don't do proper range checking in there themselves. 618 * 619 * We don't do range checking (on systems other than Windows) since there is 620 * no good reliable and portable way to do it. 621 */ 622 const char *Curl_strerror(struct connectdata *conn, int err) 623 { 624 char *buf, *p; 625 size_t max; 626 int old_errno = ERRNO; 627 628 DEBUGASSERT(conn); 629 DEBUGASSERT(err >= 0); 630 631 buf = conn->syserr_buf; 632 max = sizeof(conn->syserr_buf)-1; 633 *buf = '\0'; 634 635 #ifdef USE_WINSOCK 636 637 #ifdef _WIN32_WCE 638 { 639 wchar_t wbuf[256]; 640 wbuf[0] = L'\0'; 641 642 FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err, 643 LANG_NEUTRAL, wbuf, sizeof(wbuf)/sizeof(wchar_t), NULL); 644 wcstombs(buf, wbuf, max); 645 } 646 #else 647 /* 'sys_nerr' is the maximum errno number, it is not widely portable */ 648 if(err >= 0 && err < sys_nerr) 649 strncpy(buf, strerror(err), max); 650 else { 651 if(!get_winsock_error(err, buf, max) && 652 !FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err, 653 LANG_NEUTRAL, buf, (DWORD)max, NULL)) 654 snprintf(buf, max, "Unknown error %d (%#x)", err, err); 655 } 656 #endif 657 658 #else /* not USE_WINSOCK coming up */ 659 660 #if defined(HAVE_STRERROR_R) && defined(HAVE_POSIX_STRERROR_R) 661 /* 662 * The POSIX-style strerror_r() may set errno to ERANGE if insufficient 663 * storage is supplied via 'strerrbuf' and 'buflen' to hold the generated 664 * message string, or EINVAL if 'errnum' is not a valid error number. 665 */ 666 if(0 != strerror_r(err, buf, max)) { 667 if('\0' == buf[0]) 668 snprintf(buf, max, "Unknown error %d", err); 669 } 670 #elif defined(HAVE_STRERROR_R) && defined(HAVE_GLIBC_STRERROR_R) 671 /* 672 * The glibc-style strerror_r() only *might* use the buffer we pass to 673 * the function, but it always returns the error message as a pointer, 674 * so we must copy that string unconditionally (if non-NULL). 675 */ 676 { 677 char buffer[256]; 678 char *msg = strerror_r(err, buffer, sizeof(buffer)); 679 if(msg) 680 strncpy(buf, msg, max); 681 else 682 snprintf(buf, max, "Unknown error %d", err); 683 } 684 #elif defined(HAVE_STRERROR_R) && defined(HAVE_VXWORKS_STRERROR_R) 685 /* 686 * The vxworks-style strerror_r() does use the buffer we pass to the function. 687 * The buffer size should be at least NAME_MAX (256) 688 */ 689 { 690 char buffer[256]; 691 if(OK == strerror_r(err, buffer)) 692 strncpy(buf, buffer, max); 693 else 694 snprintf(buf, max, "Unknown error %d", err); 695 } 696 #else 697 { 698 char *msg = strerror(err); 699 if(msg) 700 strncpy(buf, msg, max); 701 else 702 snprintf(buf, max, "Unknown error %d", err); 703 } 704 #endif 705 706 #endif /* end of ! USE_WINSOCK */ 707 708 buf[max] = '\0'; /* make sure the string is zero terminated */ 709 710 /* strip trailing '\r\n' or '\n'. */ 711 if((p = strrchr(buf, '\n')) != NULL && (p - buf) >= 2) 712 *p = '\0'; 713 if((p = strrchr(buf, '\r')) != NULL && (p - buf) >= 1) 714 *p = '\0'; 715 716 if(old_errno != ERRNO) 717 SET_ERRNO(old_errno); 718 719 return buf; 720 } 721 722 #ifdef USE_LIBIDN 723 /* 724 * Return error-string for libidn status as returned from idna_to_ascii_lz(). 725 */ 726 const char *Curl_idn_strerror (struct connectdata *conn, int err) 727 { 728 #ifdef HAVE_IDNA_STRERROR 729 (void)conn; 730 return idna_strerror((Idna_rc) err); 731 #else 732 const char *str; 733 char *buf; 734 size_t max; 735 736 DEBUGASSERT(conn); 737 738 buf = conn->syserr_buf; 739 max = sizeof(conn->syserr_buf)-1; 740 *buf = '\0'; 741 742 #ifndef CURL_DISABLE_VERBOSE_STRINGS 743 switch ((Idna_rc)err) { 744 case IDNA_SUCCESS: 745 str = "No error"; 746 break; 747 case IDNA_STRINGPREP_ERROR: 748 str = "Error in string preparation"; 749 break; 750 case IDNA_PUNYCODE_ERROR: 751 str = "Error in Punycode operation"; 752 break; 753 case IDNA_CONTAINS_NON_LDH: 754 str = "Illegal ASCII characters"; 755 break; 756 case IDNA_CONTAINS_MINUS: 757 str = "Contains minus"; 758 break; 759 case IDNA_INVALID_LENGTH: 760 str = "Invalid output length"; 761 break; 762 case IDNA_NO_ACE_PREFIX: 763 str = "No ACE prefix (\"xn--\")"; 764 break; 765 case IDNA_ROUNDTRIP_VERIFY_ERROR: 766 str = "Round trip verify error"; 767 break; 768 case IDNA_CONTAINS_ACE_PREFIX: 769 str = "Already have ACE prefix (\"xn--\")"; 770 break; 771 case IDNA_ICONV_ERROR: 772 str = "Locale conversion failed"; 773 break; 774 case IDNA_MALLOC_ERROR: 775 str = "Allocation failed"; 776 break; 777 case IDNA_DLOPEN_ERROR: 778 str = "dlopen() error"; 779 break; 780 default: 781 snprintf(buf, max, "error %d", err); 782 str = NULL; 783 break; 784 } 785 #else 786 if((Idna_rc)err == IDNA_SUCCESS) 787 str = "No error"; 788 else 789 str = "Error"; 790 #endif 791 if(str) 792 strncpy(buf, str, max); 793 buf[max] = '\0'; 794 return (buf); 795 #endif 796 } 797 #endif /* USE_LIBIDN */ 798 799 #ifdef USE_WINDOWS_SSPI 800 const char *Curl_sspi_strerror (struct connectdata *conn, int err) 801 { 802 #ifndef CURL_DISABLE_VERBOSE_STRINGS 803 char txtbuf[80]; 804 char msgbuf[sizeof(conn->syserr_buf)]; 805 char *p, *str, *msg = NULL; 806 bool msg_formatted = FALSE; 807 int old_errno; 808 #endif 809 const char *txt; 810 char *outbuf; 811 size_t outmax; 812 813 DEBUGASSERT(conn); 814 815 outbuf = conn->syserr_buf; 816 outmax = sizeof(conn->syserr_buf)-1; 817 *outbuf = '\0'; 818 819 #ifndef CURL_DISABLE_VERBOSE_STRINGS 820 821 old_errno = ERRNO; 822 823 switch (err) { 824 case SEC_E_OK: 825 txt = "No error"; 826 break; 827 case SEC_E_ALGORITHM_MISMATCH: 828 txt = "SEC_E_ALGORITHM_MISMATCH"; 829 break; 830 case SEC_E_BAD_BINDINGS: 831 txt = "SEC_E_BAD_BINDINGS"; 832 break; 833 case SEC_E_BAD_PKGID: 834 txt = "SEC_E_BAD_PKGID"; 835 break; 836 case SEC_E_BUFFER_TOO_SMALL: 837 txt = "SEC_E_BUFFER_TOO_SMALL"; 838 break; 839 case SEC_E_CANNOT_INSTALL: 840 txt = "SEC_E_CANNOT_INSTALL"; 841 break; 842 case SEC_E_CANNOT_PACK: 843 txt = "SEC_E_CANNOT_PACK"; 844 break; 845 case SEC_E_CERT_EXPIRED: 846 txt = "SEC_E_CERT_EXPIRED"; 847 break; 848 case SEC_E_CERT_UNKNOWN: 849 txt = "SEC_E_CERT_UNKNOWN"; 850 break; 851 case SEC_E_CERT_WRONG_USAGE: 852 txt = "SEC_E_CERT_WRONG_USAGE"; 853 break; 854 case SEC_E_CONTEXT_EXPIRED: 855 txt = "SEC_E_CONTEXT_EXPIRED"; 856 break; 857 case SEC_E_CROSSREALM_DELEGATION_FAILURE: 858 txt = "SEC_E_CROSSREALM_DELEGATION_FAILURE"; 859 break; 860 case SEC_E_CRYPTO_SYSTEM_INVALID: 861 txt = "SEC_E_CRYPTO_SYSTEM_INVALID"; 862 break; 863 case SEC_E_DECRYPT_FAILURE: 864 txt = "SEC_E_DECRYPT_FAILURE"; 865 break; 866 case SEC_E_DELEGATION_POLICY: 867 txt = "SEC_E_DELEGATION_POLICY"; 868 break; 869 case SEC_E_DELEGATION_REQUIRED: 870 txt = "SEC_E_DELEGATION_REQUIRED"; 871 break; 872 case SEC_E_DOWNGRADE_DETECTED: 873 txt = "SEC_E_DOWNGRADE_DETECTED"; 874 break; 875 case SEC_E_ENCRYPT_FAILURE: 876 txt = "SEC_E_ENCRYPT_FAILURE"; 877 break; 878 case SEC_E_ILLEGAL_MESSAGE: 879 txt = "SEC_E_ILLEGAL_MESSAGE"; 880 break; 881 case SEC_E_INCOMPLETE_CREDENTIALS: 882 txt = "SEC_E_INCOMPLETE_CREDENTIALS"; 883 break; 884 case SEC_E_INCOMPLETE_MESSAGE: 885 txt = "SEC_E_INCOMPLETE_MESSAGE"; 886 break; 887 case SEC_E_INSUFFICIENT_MEMORY: 888 txt = "SEC_E_INSUFFICIENT_MEMORY"; 889 break; 890 case SEC_E_INTERNAL_ERROR: 891 txt = "SEC_E_INTERNAL_ERROR"; 892 break; 893 case SEC_E_INVALID_HANDLE: 894 txt = "SEC_E_INVALID_HANDLE"; 895 break; 896 case SEC_E_INVALID_PARAMETER: 897 txt = "SEC_E_INVALID_PARAMETER"; 898 break; 899 case SEC_E_INVALID_TOKEN: 900 txt = "SEC_E_INVALID_TOKEN"; 901 break; 902 case SEC_E_ISSUING_CA_UNTRUSTED: 903 txt = "SEC_E_ISSUING_CA_UNTRUSTED"; 904 break; 905 case SEC_E_ISSUING_CA_UNTRUSTED_KDC: 906 txt = "SEC_E_ISSUING_CA_UNTRUSTED_KDC"; 907 break; 908 case SEC_E_KDC_CERT_EXPIRED: 909 txt = "SEC_E_KDC_CERT_EXPIRED"; 910 break; 911 case SEC_E_KDC_CERT_REVOKED: 912 txt = "SEC_E_KDC_CERT_REVOKED"; 913 break; 914 case SEC_E_KDC_INVALID_REQUEST: 915 txt = "SEC_E_KDC_INVALID_REQUEST"; 916 break; 917 case SEC_E_KDC_UNABLE_TO_REFER: 918 txt = "SEC_E_KDC_UNABLE_TO_REFER"; 919 break; 920 case SEC_E_KDC_UNKNOWN_ETYPE: 921 txt = "SEC_E_KDC_UNKNOWN_ETYPE"; 922 break; 923 case SEC_E_LOGON_DENIED: 924 txt = "SEC_E_LOGON_DENIED"; 925 break; 926 case SEC_E_MAX_REFERRALS_EXCEEDED: 927 txt = "SEC_E_MAX_REFERRALS_EXCEEDED"; 928 break; 929 case SEC_E_MESSAGE_ALTERED: 930 txt = "SEC_E_MESSAGE_ALTERED"; 931 break; 932 case SEC_E_MULTIPLE_ACCOUNTS: 933 txt = "SEC_E_MULTIPLE_ACCOUNTS"; 934 break; 935 case SEC_E_MUST_BE_KDC: 936 txt = "SEC_E_MUST_BE_KDC"; 937 break; 938 case SEC_E_NOT_OWNER: 939 txt = "SEC_E_NOT_OWNER"; 940 break; 941 case SEC_E_NO_AUTHENTICATING_AUTHORITY: 942 txt = "SEC_E_NO_AUTHENTICATING_AUTHORITY"; 943 break; 944 case SEC_E_NO_CREDENTIALS: 945 txt = "SEC_E_NO_CREDENTIALS"; 946 break; 947 case SEC_E_NO_IMPERSONATION: 948 txt = "SEC_E_NO_IMPERSONATION"; 949 break; 950 case SEC_E_NO_IP_ADDRESSES: 951 txt = "SEC_E_NO_IP_ADDRESSES"; 952 break; 953 case SEC_E_NO_KERB_KEY: 954 txt = "SEC_E_NO_KERB_KEY"; 955 break; 956 case SEC_E_NO_PA_DATA: 957 txt = "SEC_E_NO_PA_DATA"; 958 break; 959 case SEC_E_NO_S4U_PROT_SUPPORT: 960 txt = "SEC_E_NO_S4U_PROT_SUPPORT"; 961 break; 962 case SEC_E_NO_TGT_REPLY: 963 txt = "SEC_E_NO_TGT_REPLY"; 964 break; 965 case SEC_E_OUT_OF_SEQUENCE: 966 txt = "SEC_E_OUT_OF_SEQUENCE"; 967 break; 968 case SEC_E_PKINIT_CLIENT_FAILURE: 969 txt = "SEC_E_PKINIT_CLIENT_FAILURE"; 970 break; 971 case SEC_E_PKINIT_NAME_MISMATCH: 972 txt = "SEC_E_PKINIT_NAME_MISMATCH"; 973 break; 974 case SEC_E_POLICY_NLTM_ONLY: 975 txt = "SEC_E_POLICY_NLTM_ONLY"; 976 break; 977 case SEC_E_QOP_NOT_SUPPORTED: 978 txt = "SEC_E_QOP_NOT_SUPPORTED"; 979 break; 980 case SEC_E_REVOCATION_OFFLINE_C: 981 txt = "SEC_E_REVOCATION_OFFLINE_C"; 982 break; 983 case SEC_E_REVOCATION_OFFLINE_KDC: 984 txt = "SEC_E_REVOCATION_OFFLINE_KDC"; 985 break; 986 case SEC_E_SECPKG_NOT_FOUND: 987 txt = "SEC_E_SECPKG_NOT_FOUND"; 988 break; 989 case SEC_E_SECURITY_QOS_FAILED: 990 txt = "SEC_E_SECURITY_QOS_FAILED"; 991 break; 992 case SEC_E_SHUTDOWN_IN_PROGRESS: 993 txt = "SEC_E_SHUTDOWN_IN_PROGRESS"; 994 break; 995 case SEC_E_SMARTCARD_CERT_EXPIRED: 996 txt = "SEC_E_SMARTCARD_CERT_EXPIRED"; 997 break; 998 case SEC_E_SMARTCARD_CERT_REVOKED: 999 txt = "SEC_E_SMARTCARD_CERT_REVOKED"; 1000 break; 1001 case SEC_E_SMARTCARD_LOGON_REQUIRED: 1002 txt = "SEC_E_SMARTCARD_LOGON_REQUIRED"; 1003 break; 1004 case SEC_E_STRONG_CRYPTO_NOT_SUPPORTED: 1005 txt = "SEC_E_STRONG_CRYPTO_NOT_SUPPORTED"; 1006 break; 1007 case SEC_E_TARGET_UNKNOWN: 1008 txt = "SEC_E_TARGET_UNKNOWN"; 1009 break; 1010 case SEC_E_TIME_SKEW: 1011 txt = "SEC_E_TIME_SKEW"; 1012 break; 1013 case SEC_E_TOO_MANY_PRINCIPALS: 1014 txt = "SEC_E_TOO_MANY_PRINCIPALS"; 1015 break; 1016 case SEC_E_UNFINISHED_CONTEXT_DELETED: 1017 txt = "SEC_E_UNFINISHED_CONTEXT_DELETED"; 1018 break; 1019 case SEC_E_UNKNOWN_CREDENTIALS: 1020 txt = "SEC_E_UNKNOWN_CREDENTIALS"; 1021 break; 1022 case SEC_E_UNSUPPORTED_FUNCTION: 1023 txt = "SEC_E_UNSUPPORTED_FUNCTION"; 1024 break; 1025 case SEC_E_UNSUPPORTED_PREAUTH: 1026 txt = "SEC_E_UNSUPPORTED_PREAUTH"; 1027 break; 1028 case SEC_E_UNTRUSTED_ROOT: 1029 txt = "SEC_E_UNTRUSTED_ROOT"; 1030 break; 1031 case SEC_E_WRONG_CREDENTIAL_HANDLE: 1032 txt = "SEC_E_WRONG_CREDENTIAL_HANDLE"; 1033 break; 1034 case SEC_E_WRONG_PRINCIPAL: 1035 txt = "SEC_E_WRONG_PRINCIPAL"; 1036 break; 1037 case SEC_I_COMPLETE_AND_CONTINUE: 1038 txt = "SEC_I_COMPLETE_AND_CONTINUE"; 1039 break; 1040 case SEC_I_COMPLETE_NEEDED: 1041 txt = "SEC_I_COMPLETE_NEEDED"; 1042 break; 1043 case SEC_I_CONTEXT_EXPIRED: 1044 txt = "SEC_I_CONTEXT_EXPIRED"; 1045 break; 1046 case SEC_I_CONTINUE_NEEDED: 1047 txt = "SEC_I_CONTINUE_NEEDED"; 1048 break; 1049 case SEC_I_INCOMPLETE_CREDENTIALS: 1050 txt = "SEC_I_INCOMPLETE_CREDENTIALS"; 1051 break; 1052 case SEC_I_LOCAL_LOGON: 1053 txt = "SEC_I_LOCAL_LOGON"; 1054 break; 1055 case SEC_I_NO_LSA_CONTEXT: 1056 txt = "SEC_I_NO_LSA_CONTEXT"; 1057 break; 1058 case SEC_I_RENEGOTIATE: 1059 txt = "SEC_I_RENEGOTIATE"; 1060 break; 1061 case SEC_I_SIGNATURE_NEEDED: 1062 txt = "SEC_I_SIGNATURE_NEEDED"; 1063 break; 1064 default: 1065 txt = "Unknown error"; 1066 } 1067 1068 if(err == SEC_E_OK) 1069 strncpy(outbuf, txt, outmax); 1070 else if(err == SEC_E_ILLEGAL_MESSAGE) 1071 snprintf(outbuf, outmax, 1072 "SEC_E_ILLEGAL_MESSAGE (0x%04X%04X) - This error usually occurs " 1073 "when a fatal SSL/TLS alert is received (e.g. handshake failed). " 1074 "More detail may be available in the Windows System event log.", 1075 (err >> 16) & 0xffff, err & 0xffff); 1076 else { 1077 str = txtbuf; 1078 snprintf(txtbuf, sizeof(txtbuf), "%s (0x%04X%04X)", 1079 txt, (err >> 16) & 0xffff, err & 0xffff); 1080 txtbuf[sizeof(txtbuf)-1] = '\0'; 1081 1082 #ifdef _WIN32_WCE 1083 { 1084 wchar_t wbuf[256]; 1085 wbuf[0] = L'\0'; 1086 1087 if(FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | 1088 FORMAT_MESSAGE_IGNORE_INSERTS, 1089 NULL, err, LANG_NEUTRAL, 1090 wbuf, sizeof(wbuf)/sizeof(wchar_t), NULL)) { 1091 wcstombs(msgbuf, wbuf, sizeof(msgbuf)-1); 1092 msg_formatted = TRUE; 1093 } 1094 } 1095 #else 1096 if(FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | 1097 FORMAT_MESSAGE_IGNORE_INSERTS, 1098 NULL, err, LANG_NEUTRAL, 1099 msgbuf, sizeof(msgbuf)-1, NULL)) { 1100 msg_formatted = TRUE; 1101 } 1102 #endif 1103 if(msg_formatted) { 1104 msgbuf[sizeof(msgbuf)-1] = '\0'; 1105 /* strip trailing '\r\n' or '\n' */ 1106 if((p = strrchr(msgbuf, '\n')) != NULL && (p - msgbuf) >= 2) 1107 *p = '\0'; 1108 if((p = strrchr(msgbuf, '\r')) != NULL && (p - msgbuf) >= 1) 1109 *p = '\0'; 1110 msg = msgbuf; 1111 } 1112 if(msg) 1113 snprintf(outbuf, outmax, "%s - %s", str, msg); 1114 else 1115 strncpy(outbuf, str, outmax); 1116 } 1117 1118 if(old_errno != ERRNO) 1119 SET_ERRNO(old_errno); 1120 1121 #else 1122 1123 if(err == SEC_E_OK) 1124 txt = "No error"; 1125 else 1126 txt = "Error"; 1127 1128 strncpy(outbuf, txt, outmax); 1129 1130 #endif 1131 1132 outbuf[outmax] = '\0'; 1133 1134 return outbuf; 1135 } 1136 #endif /* USE_WINDOWS_SSPI */ 1137
