1/*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 2004 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al. 9 * 10 * This software is licensed as described in the file COPYING, which 11 * you should have received as part of this distribution. The terms 12 * are also available at http://curl.haxx.se/docs/copyright.html. 13 * 14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell 15 * copies of the Software, and permit persons to whom the Software is 16 * furnished to do so, under the terms of the COPYING file. 17 * 18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 19 * KIND, either express or implied. 20 * 21 ***************************************************************************/ 22 23#include "curl_setup.h" 24 25#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 44#define _MPRINTF_REPLACE /* use our functions only */ 45#include <curl/mprintf.h> 46 47#include "curl_memory.h" 48/* The last #include file should be: */ 49#include "memdebug.h" 50 51const char * 52curl_easy_strerror(CURLcode error) 53{ 54#ifndef CURL_DISABLE_VERBOSE_STRINGS 55 switch (error) { 56 case CURLE_OK: 57 return "No error"; 58 59 case CURLE_UNSUPPORTED_PROTOCOL: 60 return "Unsupported protocol"; 61 62 case CURLE_FAILED_INIT: 63 return "Failed initialization"; 64 65 case CURLE_URL_MALFORMAT: 66 return "URL using bad/illegal format or missing URL"; 67 68 case CURLE_NOT_BUILT_IN: 69 return "A requested feature, protocol or option was not found built-in in" 70 " this libcurl due to a build-time decision."; 71 72 case CURLE_COULDNT_RESOLVE_PROXY: 73 return "Couldn't resolve proxy name"; 74 75 case CURLE_COULDNT_RESOLVE_HOST: 76 return "Couldn't resolve host name"; 77 78 case CURLE_COULDNT_CONNECT: 79 return "Couldn't connect to server"; 80 81 case CURLE_FTP_WEIRD_SERVER_REPLY: 82 return "FTP: weird server reply"; 83 84 case CURLE_REMOTE_ACCESS_DENIED: 85 return "Access denied to remote resource"; 86 87 case CURLE_FTP_ACCEPT_FAILED: 88 return "FTP: The server failed to connect to data port"; 89 90 case CURLE_FTP_ACCEPT_TIMEOUT: 91 return "FTP: Accepting server connect has timed out"; 92 93 case CURLE_FTP_PRET_FAILED: 94 return "FTP: The server did not accept the PRET command."; 95 96 case CURLE_FTP_WEIRD_PASS_REPLY: 97 return "FTP: unknown PASS reply"; 98 99 case CURLE_FTP_WEIRD_PASV_REPLY: 100 return "FTP: unknown PASV reply"; 101 102 case CURLE_FTP_WEIRD_227_FORMAT: 103 return "FTP: unknown 227 response format"; 104 105 case CURLE_FTP_CANT_GET_HOST: 106 return "FTP: can't figure out the host in the PASV response"; 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 /* error codes not used by current libcurl */ 299 case CURLE_OBSOLETE16: 300 case CURLE_OBSOLETE20: 301 case CURLE_OBSOLETE24: 302 case CURLE_OBSOLETE29: 303 case CURLE_OBSOLETE32: 304 case CURLE_OBSOLETE40: 305 case CURLE_OBSOLETE44: 306 case CURLE_OBSOLETE46: 307 case CURLE_OBSOLETE50: 308 case CURLE_OBSOLETE57: 309 case CURL_LAST: 310 break; 311 } 312 /* 313 * By using a switch, gcc -Wall will complain about enum values 314 * which do not appear, helping keep this function up-to-date. 315 * By using gcc -Wall -Werror, you can't forget. 316 * 317 * A table would not have the same benefit. Most compilers will 318 * generate code very similar to a table in any case, so there 319 * is little performance gain from a table. And something is broken 320 * for the user's application, anyways, so does it matter how fast 321 * it _doesn't_ work? 322 * 323 * The line number for the error will be near this comment, which 324 * is why it is here, and not at the start of the switch. 325 */ 326 return "Unknown error"; 327#else 328 if(error == CURLE_OK) 329 return "No error"; 330 else 331 return "Error"; 332#endif 333} 334 335const char * 336curl_multi_strerror(CURLMcode error) 337{ 338#ifndef CURL_DISABLE_VERBOSE_STRINGS 339 switch (error) { 340 case CURLM_CALL_MULTI_PERFORM: 341 return "Please call curl_multi_perform() soon"; 342 343 case CURLM_OK: 344 return "No error"; 345 346 case CURLM_BAD_HANDLE: 347 return "Invalid multi handle"; 348 349 case CURLM_BAD_EASY_HANDLE: 350 return "Invalid easy handle"; 351 352 case CURLM_OUT_OF_MEMORY: 353 return "Out of memory"; 354 355 case CURLM_INTERNAL_ERROR: 356 return "Internal error"; 357 358 case CURLM_BAD_SOCKET: 359 return "Invalid socket argument"; 360 361 case CURLM_UNKNOWN_OPTION: 362 return "Unknown option"; 363 364 case CURLM_ADDED_ALREADY: 365 return "The easy handle is already added to a multi handle"; 366 367 case CURLM_LAST: 368 break; 369 } 370 371 return "Unknown error"; 372#else 373 if(error == CURLM_OK) 374 return "No error"; 375 else 376 return "Error"; 377#endif 378} 379 380const char * 381curl_share_strerror(CURLSHcode error) 382{ 383#ifndef CURL_DISABLE_VERBOSE_STRINGS 384 switch (error) { 385 case CURLSHE_OK: 386 return "No error"; 387 388 case CURLSHE_BAD_OPTION: 389 return "Unknown share option"; 390 391 case CURLSHE_IN_USE: 392 return "Share currently in use"; 393 394 case CURLSHE_INVALID: 395 return "Invalid share handle"; 396 397 case CURLSHE_NOMEM: 398 return "Out of memory"; 399 400 case CURLSHE_NOT_BUILT_IN: 401 return "Feature not enabled in this library"; 402 403 case CURLSHE_LAST: 404 break; 405 } 406 407 return "CURLSHcode unknown"; 408#else 409 if(error == CURLSHE_OK) 410 return "No error"; 411 else 412 return "Error"; 413#endif 414} 415 416#ifdef USE_WINSOCK 417 418/* This function handles most / all (?) Winsock errors cURL is able to produce. 419 */ 420static const char * 421get_winsock_error (int err, char *buf, size_t len) 422{ 423 const char *p; 424 425#ifndef CURL_DISABLE_VERBOSE_STRINGS 426 switch (err) { 427 case WSAEINTR: 428 p = "Call interrupted"; 429 break; 430 case WSAEBADF: 431 p = "Bad file"; 432 break; 433 case WSAEACCES: 434 p = "Bad access"; 435 break; 436 case WSAEFAULT: 437 p = "Bad argument"; 438 break; 439 case WSAEINVAL: 440 p = "Invalid arguments"; 441 break; 442 case WSAEMFILE: 443 p = "Out of file descriptors"; 444 break; 445 case WSAEWOULDBLOCK: 446 p = "Call would block"; 447 break; 448 case WSAEINPROGRESS: 449 case WSAEALREADY: 450 p = "Blocking call in progress"; 451 break; 452 case WSAENOTSOCK: 453 p = "Descriptor is not a socket"; 454 break; 455 case WSAEDESTADDRREQ: 456 p = "Need destination address"; 457 break; 458 case WSAEMSGSIZE: 459 p = "Bad message size"; 460 break; 461 case WSAEPROTOTYPE: 462 p = "Bad protocol"; 463 break; 464 case WSAENOPROTOOPT: 465 p = "Protocol option is unsupported"; 466 break; 467 case WSAEPROTONOSUPPORT: 468 p = "Protocol is unsupported"; 469 break; 470 case WSAESOCKTNOSUPPORT: 471 p = "Socket is unsupported"; 472 break; 473 case WSAEOPNOTSUPP: 474 p = "Operation not supported"; 475 break; 476 case WSAEAFNOSUPPORT: 477 p = "Address family not supported"; 478 break; 479 case WSAEPFNOSUPPORT: 480 p = "Protocol family not supported"; 481 break; 482 case WSAEADDRINUSE: 483 p = "Address already in use"; 484 break; 485 case WSAEADDRNOTAVAIL: 486 p = "Address not available"; 487 break; 488 case WSAENETDOWN: 489 p = "Network down"; 490 break; 491 case WSAENETUNREACH: 492 p = "Network unreachable"; 493 break; 494 case WSAENETRESET: 495 p = "Network has been reset"; 496 break; 497 case WSAECONNABORTED: 498 p = "Connection was aborted"; 499 break; 500 case WSAECONNRESET: 501 p = "Connection was reset"; 502 break; 503 case WSAENOBUFS: 504 p = "No buffer space"; 505 break; 506 case WSAEISCONN: 507 p = "Socket is already connected"; 508 break; 509 case WSAENOTCONN: 510 p = "Socket is not connected"; 511 break; 512 case WSAESHUTDOWN: 513 p = "Socket has been shut down"; 514 break; 515 case WSAETOOMANYREFS: 516 p = "Too many references"; 517 break; 518 case WSAETIMEDOUT: 519 p = "Timed out"; 520 break; 521 case WSAECONNREFUSED: 522 p = "Connection refused"; 523 break; 524 case WSAELOOP: 525 p = "Loop??"; 526 break; 527 case WSAENAMETOOLONG: 528 p = "Name too long"; 529 break; 530 case WSAEHOSTDOWN: 531 p = "Host down"; 532 break; 533 case WSAEHOSTUNREACH: 534 p = "Host unreachable"; 535 break; 536 case WSAENOTEMPTY: 537 p = "Not empty"; 538 break; 539 case WSAEPROCLIM: 540 p = "Process limit reached"; 541 break; 542 case WSAEUSERS: 543 p = "Too many users"; 544 break; 545 case WSAEDQUOT: 546 p = "Bad quota"; 547 break; 548 case WSAESTALE: 549 p = "Something is stale"; 550 break; 551 case WSAEREMOTE: 552 p = "Remote error"; 553 break; 554#ifdef WSAEDISCON /* missing in SalfordC! */ 555 case WSAEDISCON: 556 p = "Disconnected"; 557 break; 558#endif 559 /* Extended Winsock errors */ 560 case WSASYSNOTREADY: 561 p = "Winsock library is not ready"; 562 break; 563 case WSANOTINITIALISED: 564 p = "Winsock library not initialised"; 565 break; 566 case WSAVERNOTSUPPORTED: 567 p = "Winsock version not supported"; 568 break; 569 570 /* getXbyY() errors (already handled in herrmsg): 571 * Authoritative Answer: Host not found */ 572 case WSAHOST_NOT_FOUND: 573 p = "Host not found"; 574 break; 575 576 /* Non-Authoritative: Host not found, or SERVERFAIL */ 577 case WSATRY_AGAIN: 578 p = "Host not found, try again"; 579 break; 580 581 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */ 582 case WSANO_RECOVERY: 583 p = "Unrecoverable error in call to nameserver"; 584 break; 585 586 /* Valid name, no data record of requested type */ 587 case WSANO_DATA: 588 p = "No data record of requested type"; 589 break; 590 591 default: 592 return NULL; 593 } 594#else 595 if(err == CURLE_OK) 596 return NULL; 597 else 598 p = "error"; 599#endif 600 strncpy (buf, p, len); 601 buf [len-1] = '\0'; 602 return buf; 603} 604#endif /* USE_WINSOCK */ 605 606/* 607 * Our thread-safe and smart strerror() replacement. 608 * 609 * The 'err' argument passed in to this function MUST be a true errno number 610 * as reported on this system. We do no range checking on the number before 611 * we pass it to the "number-to-message" conversion function and there might 612 * be systems that don't do proper range checking in there themselves. 613 * 614 * We don't do range checking (on systems other than Windows) since there is 615 * no good reliable and portable way to do it. 616 */ 617const char *Curl_strerror(struct connectdata *conn, int err) 618{ 619 char *buf, *p; 620 size_t max; 621 int old_errno = ERRNO; 622 623 DEBUGASSERT(conn); 624 DEBUGASSERT(err >= 0); 625 626 buf = conn->syserr_buf; 627 max = sizeof(conn->syserr_buf)-1; 628 *buf = '\0'; 629 630#ifdef USE_WINSOCK 631 632#ifdef _WIN32_WCE 633 { 634 wchar_t wbuf[256]; 635 wbuf[0] = L'\0'; 636 637 FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err, 638 LANG_NEUTRAL, wbuf, sizeof(wbuf)/sizeof(wchar_t), NULL); 639 wcstombs(buf,wbuf,max); 640 } 641#else 642 /* 'sys_nerr' is the maximum errno number, it is not widely portable */ 643 if(err >= 0 && err < sys_nerr) 644 strncpy(buf, strerror(err), max); 645 else { 646 if(!get_winsock_error(err, buf, max) && 647 !FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err, 648 LANG_NEUTRAL, buf, (DWORD)max, NULL)) 649 snprintf(buf, max, "Unknown error %d (%#x)", err, err); 650 } 651#endif 652 653#else /* not USE_WINSOCK coming up */ 654 655#if defined(HAVE_STRERROR_R) && defined(HAVE_POSIX_STRERROR_R) 656 /* 657 * The POSIX-style strerror_r() may set errno to ERANGE if insufficient 658 * storage is supplied via 'strerrbuf' and 'buflen' to hold the generated 659 * message string, or EINVAL if 'errnum' is not a valid error number. 660 */ 661 if(0 != strerror_r(err, buf, max)) { 662 if('\0' == buf[0]) 663 snprintf(buf, max, "Unknown error %d", err); 664 } 665#elif defined(HAVE_STRERROR_R) && defined(HAVE_GLIBC_STRERROR_R) 666 /* 667 * The glibc-style strerror_r() only *might* use the buffer we pass to 668 * the function, but it always returns the error message as a pointer, 669 * so we must copy that string unconditionally (if non-NULL). 670 */ 671 { 672 char buffer[256]; 673 char *msg = strerror_r(err, buffer, sizeof(buffer)); 674 if(msg) 675 strncpy(buf, msg, max); 676 else 677 snprintf(buf, max, "Unknown error %d", err); 678 } 679#elif defined(HAVE_STRERROR_R) && defined(HAVE_VXWORKS_STRERROR_R) 680 /* 681 * The vxworks-style strerror_r() does use the buffer we pass to the function. 682 * The buffer size should be at least NAME_MAX (256) 683 */ 684 { 685 char buffer[256]; 686 if(OK == strerror_r(err, buffer)) 687 strncpy(buf, buffer, max); 688 else 689 snprintf(buf, max, "Unknown error %d", err); 690 } 691#else 692 { 693 char *msg = strerror(err); 694 if(msg) 695 strncpy(buf, msg, max); 696 else 697 snprintf(buf, max, "Unknown error %d", err); 698 } 699#endif 700 701#endif /* end of ! USE_WINSOCK */ 702 703 buf[max] = '\0'; /* make sure the string is zero terminated */ 704 705 /* strip trailing '\r\n' or '\n'. */ 706 if((p = strrchr(buf,'\n')) != NULL && (p - buf) >= 2) 707 *p = '\0'; 708 if((p = strrchr(buf,'\r')) != NULL && (p - buf) >= 1) 709 *p = '\0'; 710 711 if(old_errno != ERRNO) 712 SET_ERRNO(old_errno); 713 714 return buf; 715} 716 717#ifdef USE_LIBIDN 718/* 719 * Return error-string for libidn status as returned from idna_to_ascii_lz(). 720 */ 721const char *Curl_idn_strerror (struct connectdata *conn, int err) 722{ 723#ifdef HAVE_IDNA_STRERROR 724 (void)conn; 725 return idna_strerror((Idna_rc) err); 726#else 727 const char *str; 728 char *buf; 729 size_t max; 730 731 DEBUGASSERT(conn); 732 733 buf = conn->syserr_buf; 734 max = sizeof(conn->syserr_buf)-1; 735 *buf = '\0'; 736 737#ifndef CURL_DISABLE_VERBOSE_STRINGS 738 switch ((Idna_rc)err) { 739 case IDNA_SUCCESS: 740 str = "No error"; 741 break; 742 case IDNA_STRINGPREP_ERROR: 743 str = "Error in string preparation"; 744 break; 745 case IDNA_PUNYCODE_ERROR: 746 str = "Error in Punycode operation"; 747 break; 748 case IDNA_CONTAINS_NON_LDH: 749 str = "Illegal ASCII characters"; 750 break; 751 case IDNA_CONTAINS_MINUS: 752 str = "Contains minus"; 753 break; 754 case IDNA_INVALID_LENGTH: 755 str = "Invalid output length"; 756 break; 757 case IDNA_NO_ACE_PREFIX: 758 str = "No ACE prefix (\"xn--\")"; 759 break; 760 case IDNA_ROUNDTRIP_VERIFY_ERROR: 761 str = "Round trip verify error"; 762 break; 763 case IDNA_CONTAINS_ACE_PREFIX: 764 str = "Already have ACE prefix (\"xn--\")"; 765 break; 766 case IDNA_ICONV_ERROR: 767 str = "Locale conversion failed"; 768 break; 769 case IDNA_MALLOC_ERROR: 770 str = "Allocation failed"; 771 break; 772 case IDNA_DLOPEN_ERROR: 773 str = "dlopen() error"; 774 break; 775 default: 776 snprintf(buf, max, "error %d", err); 777 str = NULL; 778 break; 779 } 780#else 781 if((Idna_rc)err == IDNA_SUCCESS) 782 str = "No error"; 783 else 784 str = "Error"; 785#endif 786 if(str) 787 strncpy(buf, str, max); 788 buf[max] = '\0'; 789 return (buf); 790#endif 791} 792#endif /* USE_LIBIDN */ 793 794#ifdef USE_WINDOWS_SSPI 795const char *Curl_sspi_strerror (struct connectdata *conn, int err) 796{ 797#ifndef CURL_DISABLE_VERBOSE_STRINGS 798 char txtbuf[80]; 799 char msgbuf[sizeof(conn->syserr_buf)]; 800 char *p, *str, *msg = NULL; 801 bool msg_formatted = FALSE; 802 int old_errno; 803#endif 804 const char *txt; 805 char *outbuf; 806 size_t outmax; 807 808 DEBUGASSERT(conn); 809 810 outbuf = conn->syserr_buf; 811 outmax = sizeof(conn->syserr_buf)-1; 812 *outbuf = '\0'; 813 814#ifndef CURL_DISABLE_VERBOSE_STRINGS 815 816 old_errno = ERRNO; 817 818 switch (err) { 819 case SEC_E_OK: 820 txt = "No error"; 821 break; 822 case SEC_E_ALGORITHM_MISMATCH: 823 txt = "SEC_E_ALGORITHM_MISMATCH"; 824 break; 825 case SEC_E_BAD_BINDINGS: 826 txt = "SEC_E_BAD_BINDINGS"; 827 break; 828 case SEC_E_BAD_PKGID: 829 txt = "SEC_E_BAD_PKGID"; 830 break; 831 case SEC_E_BUFFER_TOO_SMALL: 832 txt = "SEC_E_BUFFER_TOO_SMALL"; 833 break; 834 case SEC_E_CANNOT_INSTALL: 835 txt = "SEC_E_CANNOT_INSTALL"; 836 break; 837 case SEC_E_CANNOT_PACK: 838 txt = "SEC_E_CANNOT_PACK"; 839 break; 840 case SEC_E_CERT_EXPIRED: 841 txt = "SEC_E_CERT_EXPIRED"; 842 break; 843 case SEC_E_CERT_UNKNOWN: 844 txt = "SEC_E_CERT_UNKNOWN"; 845 break; 846 case SEC_E_CERT_WRONG_USAGE: 847 txt = "SEC_E_CERT_WRONG_USAGE"; 848 break; 849 case SEC_E_CONTEXT_EXPIRED: 850 txt = "SEC_E_CONTEXT_EXPIRED"; 851 break; 852 case SEC_E_CROSSREALM_DELEGATION_FAILURE: 853 txt = "SEC_E_CROSSREALM_DELEGATION_FAILURE"; 854 break; 855 case SEC_E_CRYPTO_SYSTEM_INVALID: 856 txt = "SEC_E_CRYPTO_SYSTEM_INVALID"; 857 break; 858 case SEC_E_DECRYPT_FAILURE: 859 txt = "SEC_E_DECRYPT_FAILURE"; 860 break; 861 case SEC_E_DELEGATION_POLICY: 862 txt = "SEC_E_DELEGATION_POLICY"; 863 break; 864 case SEC_E_DELEGATION_REQUIRED: 865 txt = "SEC_E_DELEGATION_REQUIRED"; 866 break; 867 case SEC_E_DOWNGRADE_DETECTED: 868 txt = "SEC_E_DOWNGRADE_DETECTED"; 869 break; 870 case SEC_E_ENCRYPT_FAILURE: 871 txt = "SEC_E_ENCRYPT_FAILURE"; 872 break; 873 case SEC_E_ILLEGAL_MESSAGE: 874 txt = "SEC_E_ILLEGAL_MESSAGE"; 875 break; 876 case SEC_E_INCOMPLETE_CREDENTIALS: 877 txt = "SEC_E_INCOMPLETE_CREDENTIALS"; 878 break; 879 case SEC_E_INCOMPLETE_MESSAGE: 880 txt = "SEC_E_INCOMPLETE_MESSAGE"; 881 break; 882 case SEC_E_INSUFFICIENT_MEMORY: 883 txt = "SEC_E_INSUFFICIENT_MEMORY"; 884 break; 885 case SEC_E_INTERNAL_ERROR: 886 txt = "SEC_E_INTERNAL_ERROR"; 887 break; 888 case SEC_E_INVALID_HANDLE: 889 txt = "SEC_E_INVALID_HANDLE"; 890 break; 891 case SEC_E_INVALID_PARAMETER: 892 txt = "SEC_E_INVALID_PARAMETER"; 893 break; 894 case SEC_E_INVALID_TOKEN: 895 txt = "SEC_E_INVALID_TOKEN"; 896 break; 897 case SEC_E_ISSUING_CA_UNTRUSTED: 898 txt = "SEC_E_ISSUING_CA_UNTRUSTED"; 899 break; 900 case SEC_E_ISSUING_CA_UNTRUSTED_KDC: 901 txt = "SEC_E_ISSUING_CA_UNTRUSTED_KDC"; 902 break; 903 case SEC_E_KDC_CERT_EXPIRED: 904 txt = "SEC_E_KDC_CERT_EXPIRED"; 905 break; 906 case SEC_E_KDC_CERT_REVOKED: 907 txt = "SEC_E_KDC_CERT_REVOKED"; 908 break; 909 case SEC_E_KDC_INVALID_REQUEST: 910 txt = "SEC_E_KDC_INVALID_REQUEST"; 911 break; 912 case SEC_E_KDC_UNABLE_TO_REFER: 913 txt = "SEC_E_KDC_UNABLE_TO_REFER"; 914 break; 915 case SEC_E_KDC_UNKNOWN_ETYPE: 916 txt = "SEC_E_KDC_UNKNOWN_ETYPE"; 917 break; 918 case SEC_E_LOGON_DENIED: 919 txt = "SEC_E_LOGON_DENIED"; 920 break; 921 case SEC_E_MAX_REFERRALS_EXCEEDED: 922 txt = "SEC_E_MAX_REFERRALS_EXCEEDED"; 923 break; 924 case SEC_E_MESSAGE_ALTERED: 925 txt = "SEC_E_MESSAGE_ALTERED"; 926 break; 927 case SEC_E_MULTIPLE_ACCOUNTS: 928 txt = "SEC_E_MULTIPLE_ACCOUNTS"; 929 break; 930 case SEC_E_MUST_BE_KDC: 931 txt = "SEC_E_MUST_BE_KDC"; 932 break; 933 case SEC_E_NOT_OWNER: 934 txt = "SEC_E_NOT_OWNER"; 935 break; 936 case SEC_E_NO_AUTHENTICATING_AUTHORITY: 937 txt = "SEC_E_NO_AUTHENTICATING_AUTHORITY"; 938 break; 939 case SEC_E_NO_CREDENTIALS: 940 txt = "SEC_E_NO_CREDENTIALS"; 941 break; 942 case SEC_E_NO_IMPERSONATION: 943 txt = "SEC_E_NO_IMPERSONATION"; 944 break; 945 case SEC_E_NO_IP_ADDRESSES: 946 txt = "SEC_E_NO_IP_ADDRESSES"; 947 break; 948 case SEC_E_NO_KERB_KEY: 949 txt = "SEC_E_NO_KERB_KEY"; 950 break; 951 case SEC_E_NO_PA_DATA: 952 txt = "SEC_E_NO_PA_DATA"; 953 break; 954 case SEC_E_NO_S4U_PROT_SUPPORT: 955 txt = "SEC_E_NO_S4U_PROT_SUPPORT"; 956 break; 957 case SEC_E_NO_TGT_REPLY: 958 txt = "SEC_E_NO_TGT_REPLY"; 959 break; 960 case SEC_E_OUT_OF_SEQUENCE: 961 txt = "SEC_E_OUT_OF_SEQUENCE"; 962 break; 963 case SEC_E_PKINIT_CLIENT_FAILURE: 964 txt = "SEC_E_PKINIT_CLIENT_FAILURE"; 965 break; 966 case SEC_E_PKINIT_NAME_MISMATCH: 967 txt = "SEC_E_PKINIT_NAME_MISMATCH"; 968 break; 969 case SEC_E_POLICY_NLTM_ONLY: 970 txt = "SEC_E_POLICY_NLTM_ONLY"; 971 break; 972 case SEC_E_QOP_NOT_SUPPORTED: 973 txt = "SEC_E_QOP_NOT_SUPPORTED"; 974 break; 975 case SEC_E_REVOCATION_OFFLINE_C: 976 txt = "SEC_E_REVOCATION_OFFLINE_C"; 977 break; 978 case SEC_E_REVOCATION_OFFLINE_KDC: 979 txt = "SEC_E_REVOCATION_OFFLINE_KDC"; 980 break; 981 case SEC_E_SECPKG_NOT_FOUND: 982 txt = "SEC_E_SECPKG_NOT_FOUND"; 983 break; 984 case SEC_E_SECURITY_QOS_FAILED: 985 txt = "SEC_E_SECURITY_QOS_FAILED"; 986 break; 987 case SEC_E_SHUTDOWN_IN_PROGRESS: 988 txt = "SEC_E_SHUTDOWN_IN_PROGRESS"; 989 break; 990 case SEC_E_SMARTCARD_CERT_EXPIRED: 991 txt = "SEC_E_SMARTCARD_CERT_EXPIRED"; 992 break; 993 case SEC_E_SMARTCARD_CERT_REVOKED: 994 txt = "SEC_E_SMARTCARD_CERT_REVOKED"; 995 break; 996 case SEC_E_SMARTCARD_LOGON_REQUIRED: 997 txt = "SEC_E_SMARTCARD_LOGON_REQUIRED"; 998 break; 999 case SEC_E_STRONG_CRYPTO_NOT_SUPPORTED: 1000 txt = "SEC_E_STRONG_CRYPTO_NOT_SUPPORTED"; 1001 break; 1002 case SEC_E_TARGET_UNKNOWN: 1003 txt = "SEC_E_TARGET_UNKNOWN"; 1004 break; 1005 case SEC_E_TIME_SKEW: 1006 txt = "SEC_E_TIME_SKEW"; 1007 break; 1008 case SEC_E_TOO_MANY_PRINCIPALS: 1009 txt = "SEC_E_TOO_MANY_PRINCIPALS"; 1010 break; 1011 case SEC_E_UNFINISHED_CONTEXT_DELETED: 1012 txt = "SEC_E_UNFINISHED_CONTEXT_DELETED"; 1013 break; 1014 case SEC_E_UNKNOWN_CREDENTIALS: 1015 txt = "SEC_E_UNKNOWN_CREDENTIALS"; 1016 break; 1017 case SEC_E_UNSUPPORTED_FUNCTION: 1018 txt = "SEC_E_UNSUPPORTED_FUNCTION"; 1019 break; 1020 case SEC_E_UNSUPPORTED_PREAUTH: 1021 txt = "SEC_E_UNSUPPORTED_PREAUTH"; 1022 break; 1023 case SEC_E_UNTRUSTED_ROOT: 1024 txt = "SEC_E_UNTRUSTED_ROOT"; 1025 break; 1026 case SEC_E_WRONG_CREDENTIAL_HANDLE: 1027 txt = "SEC_E_WRONG_CREDENTIAL_HANDLE"; 1028 break; 1029 case SEC_E_WRONG_PRINCIPAL: 1030 txt = "SEC_E_WRONG_PRINCIPAL"; 1031 break; 1032 case SEC_I_COMPLETE_AND_CONTINUE: 1033 txt = "SEC_I_COMPLETE_AND_CONTINUE"; 1034 break; 1035 case SEC_I_COMPLETE_NEEDED: 1036 txt = "SEC_I_COMPLETE_NEEDED"; 1037 break; 1038 case SEC_I_CONTEXT_EXPIRED: 1039 txt = "SEC_I_CONTEXT_EXPIRED"; 1040 break; 1041 case SEC_I_CONTINUE_NEEDED: 1042 txt = "SEC_I_CONTINUE_NEEDED"; 1043 break; 1044 case SEC_I_INCOMPLETE_CREDENTIALS: 1045 txt = "SEC_I_INCOMPLETE_CREDENTIALS"; 1046 break; 1047 case SEC_I_LOCAL_LOGON: 1048 txt = "SEC_I_LOCAL_LOGON"; 1049 break; 1050 case SEC_I_NO_LSA_CONTEXT: 1051 txt = "SEC_I_NO_LSA_CONTEXT"; 1052 break; 1053 case SEC_I_RENEGOTIATE: 1054 txt = "SEC_I_RENEGOTIATE"; 1055 break; 1056 case SEC_I_SIGNATURE_NEEDED: 1057 txt = "SEC_I_SIGNATURE_NEEDED"; 1058 break; 1059 default: 1060 txt = "Unknown error"; 1061 } 1062 1063 if(err == SEC_E_OK) 1064 strncpy(outbuf, txt, outmax); 1065 else { 1066 str = txtbuf; 1067 snprintf(txtbuf, sizeof(txtbuf), "%s (0x%04X%04X)", 1068 txt, (err >> 16) & 0xffff, err & 0xffff); 1069 txtbuf[sizeof(txtbuf)-1] = '\0'; 1070 1071#ifdef _WIN32_WCE 1072 { 1073 wchar_t wbuf[256]; 1074 wbuf[0] = L'\0'; 1075 1076 if(FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | 1077 FORMAT_MESSAGE_IGNORE_INSERTS, 1078 NULL, err, LANG_NEUTRAL, 1079 wbuf, sizeof(wbuf)/sizeof(wchar_t), NULL)) { 1080 wcstombs(msgbuf,wbuf,sizeof(msgbuf)-1); 1081 msg_formatted = TRUE; 1082 } 1083 } 1084#else 1085 if(FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | 1086 FORMAT_MESSAGE_IGNORE_INSERTS, 1087 NULL, err, LANG_NEUTRAL, 1088 msgbuf, sizeof(msgbuf)-1, NULL)) { 1089 msg_formatted = TRUE; 1090 } 1091#endif 1092 if(msg_formatted) { 1093 msgbuf[sizeof(msgbuf)-1] = '\0'; 1094 /* strip trailing '\r\n' or '\n' */ 1095 if((p = strrchr(msgbuf,'\n')) != NULL && (p - msgbuf) >= 2) 1096 *p = '\0'; 1097 if((p = strrchr(msgbuf,'\r')) != NULL && (p - msgbuf) >= 1) 1098 *p = '\0'; 1099 msg = msgbuf; 1100 } 1101 if(msg) 1102 snprintf(outbuf, outmax, "%s - %s", str, msg); 1103 else 1104 strncpy(outbuf, str, outmax); 1105 } 1106 1107 if(old_errno != ERRNO) 1108 SET_ERRNO(old_errno); 1109 1110#else 1111 1112 if(err == SEC_E_OK) 1113 txt = "No error"; 1114 else 1115 txt = "Error"; 1116 1117 strncpy(outbuf, txt, outmax); 1118 1119#endif 1120 1121 outbuf[outmax] = '\0'; 1122 1123 return outbuf; 1124} 1125#endif /* USE_WINDOWS_SSPI */ 1126