mirror of
https://github.com/moparisthebest/curl
synced 2024-12-21 23:58:49 -05:00
559 lines
14 KiB
C
559 lines
14 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 2004, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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#include "setup.h"
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#include <curl/curl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "strerror.h"
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#define _MPRINTF_REPLACE /* use our functions only */
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#include <curl/mprintf.h>
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#ifdef HAVE_NO_STRERROR_R_DECL
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#ifdef HAVE_POSIX_STRERROR_R
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/* seen on AIX 5100-02 gcc 2.9 */
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extern int strerror_r(int errnum, char *strerrbuf, size_t buflen);
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#else
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extern char *strerror_r(int errnum, char *buf, size_t buflen);
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#endif
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#endif
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const char *
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curl_easy_strerror(CURLcode error)
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{
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switch (error) {
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case CURLE_OK:
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return "no error";
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case CURLE_UNSUPPORTED_PROTOCOL:
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return "unsupported protocol";
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case CURLE_FAILED_INIT:
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return "failed init";
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case CURLE_URL_MALFORMAT:
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return "URL using bad/illegal format or missing URL";
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case CURLE_COULDNT_RESOLVE_PROXY:
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return "couldnt resolve proxy";
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case CURLE_COULDNT_RESOLVE_HOST:
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return "couldnt resolve host";
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case CURLE_COULDNT_CONNECT:
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return "couldn't connect";
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case CURLE_FTP_WEIRD_SERVER_REPLY:
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return "FTP: weird server reply";
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case CURLE_FTP_ACCESS_DENIED:
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return "FTP: access denied";
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case CURLE_FTP_USER_PASSWORD_INCORRECT:
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return "FTP: user and/or password incorrect";
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case CURLE_FTP_WEIRD_PASS_REPLY:
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return "FTP: unknown PASS reply";
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case CURLE_FTP_WEIRD_USER_REPLY:
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return "FTP: unknown USER reply";
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case CURLE_FTP_WEIRD_PASV_REPLY:
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return "FTP: unknown PASV reply";
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case CURLE_FTP_WEIRD_227_FORMAT:
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return "FTP: unknown 227 response format";
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case CURLE_FTP_CANT_GET_HOST:
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return "FTP: can't figure out the host in the PASV response";
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case CURLE_FTP_CANT_RECONNECT:
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return "FTP: can't connect to server the response code is unknown";
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case CURLE_FTP_COULDNT_SET_BINARY:
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return "FTP: couldn't set binary mode";
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case CURLE_PARTIAL_FILE:
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return "Transferred a partial file";
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case CURLE_FTP_COULDNT_RETR_FILE:
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return "FTP: couldn't retrieve (RETR failed) the specified file";
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case CURLE_FTP_WRITE_ERROR:
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return "FTP: the post-transfer acknowledge response was not OK";
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case CURLE_FTP_QUOTE_ERROR:
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return "FTP: a quote command returned error";
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case CURLE_HTTP_RETURNED_ERROR:
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return "HTTP response code said error";
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case CURLE_WRITE_ERROR:
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return "failed writing received data to disk/application";
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case CURLE_FTP_COULDNT_STOR_FILE:
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return "failed FTP upload (the STOR command)";
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case CURLE_READ_ERROR:
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return "failed to open/read local data from file/application";
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case CURLE_OUT_OF_MEMORY:
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return "out of memory";
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case CURLE_OPERATION_TIMEOUTED:
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return "a timeout was reached";
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case CURLE_FTP_COULDNT_SET_ASCII:
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return "FTP could not set ASCII mode (TYPE A)";
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case CURLE_FTP_PORT_FAILED:
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return "FTP command PORT failed";
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case CURLE_FTP_COULDNT_USE_REST:
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return "FTP command REST failed";
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case CURLE_FTP_COULDNT_GET_SIZE:
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return "FTP command SIZE failed";
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case CURLE_HTTP_RANGE_ERROR:
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return "a range was requested but the server did not deliver it";
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case CURLE_HTTP_POST_ERROR:
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return "internal problem setting up the POST";
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case CURLE_SSL_CONNECT_ERROR:
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return "SSL connect error";
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case CURLE_FTP_BAD_DOWNLOAD_RESUME:
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return "couldn't resume FTP download";
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case CURLE_FILE_COULDNT_READ_FILE:
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return "couldn't read a file:// file";
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case CURLE_LDAP_CANNOT_BIND:
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return "LDAP: cannot bind";
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case CURLE_LDAP_SEARCH_FAILED:
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return "LDAP: search failed";
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case CURLE_LIBRARY_NOT_FOUND:
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return "a required shared library was not found";
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case CURLE_FUNCTION_NOT_FOUND:
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return "a required function in the shared library was not found";
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case CURLE_ABORTED_BY_CALLBACK:
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return "the operation was aborted by an application callback";
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case CURLE_BAD_FUNCTION_ARGUMENT:
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return "a libcurl function was given a bad argument";
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case CURLE_INTERFACE_FAILED:
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return "failed binding local connection end";
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case CURLE_TOO_MANY_REDIRECTS :
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return "number of redirects hit maximum amount";
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case CURLE_UNKNOWN_TELNET_OPTION:
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return "User specified an unknown option";
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case CURLE_TELNET_OPTION_SYNTAX :
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return "Malformed telnet option";
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case CURLE_SSL_PEER_CERTIFICATE:
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return "SSL peer certificate was not ok";
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case CURLE_GOT_NOTHING:
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return "server returned nothing (no headers, no data)";
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case CURLE_SSL_ENGINE_NOTFOUND:
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return "SSL crypto engine not found";
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case CURLE_SSL_ENGINE_SETFAILED:
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return "can not set SSL crypto engine as default";
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case CURLE_SEND_ERROR:
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return "failed sending data to the peer";
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case CURLE_RECV_ERROR:
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return "failure when receiving data from the peer";
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case CURLE_SHARE_IN_USE:
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return "share is already in use";
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case CURLE_SSL_CERTPROBLEM:
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return "problem with the local SSL certificate";
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case CURLE_SSL_CIPHER:
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return "couldn't use specified SSL cipher";
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case CURLE_SSL_CACERT:
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return "problem with the SSL CA cert (path? access rights?)";
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case CURLE_BAD_CONTENT_ENCODING:
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return "Unrecognized HTTP Content-Encoding";
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case CURLE_LDAP_INVALID_URL:
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return "Invalid LDAP URL";
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case CURLE_FILESIZE_EXCEEDED:
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return "Maximum file size exceeded";
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case CURLE_FTP_SSL_FAILED:
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return "Requested FTP SSL level failed";
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case CURLE_URL_MALFORMAT_USER: /* not used by current libcurl */
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case CURLE_MALFORMAT_USER: /* not used by current libcurl */
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case CURLE_BAD_CALLING_ORDER: /* not used by current libcurl */
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case CURLE_BAD_PASSWORD_ENTERED:/* not used by current libcurl */
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case CURLE_OBSOLETE: /* not used by current libcurl */
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case CURL_LAST:
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break;
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}
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/*
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* By using a switch, gcc -Wall will complain about enum values
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* which do not appear, helping keep this function up-to-date.
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* By using gcc -Wall -Werror, you can't forget.
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*
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* A table would not have the same benefit. Most compilers will
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* generate code very similar to a table in any case, so there
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* is little performance gain from a table. And something is broken
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* for the user's application, anyways, so does it matter how fast
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* it _doesn't_ work?
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*
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* The line number for the error will be near this comment, which
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* is why it is here, and not at the start of the switch.
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*/
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return "unknown error";
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}
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const char *
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curl_multi_strerror(CURLMcode error)
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{
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switch (error) {
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case CURLM_CALL_MULTI_PERFORM:
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return "please call curl_multi_perform() soon";
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case CURLM_OK:
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return "no error";
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case CURLM_BAD_HANDLE:
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return "invalid multi handle";
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case CURLM_BAD_EASY_HANDLE:
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return "invalid easy handle";
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case CURLM_OUT_OF_MEMORY:
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return "out of memory";
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case CURLM_INTERNAL_ERROR:
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return "internal error";
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case CURLM_LAST:
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break;
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}
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return "unknown error";
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}
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const char *
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curl_share_strerror(CURLSHcode error)
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{
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switch (error) {
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case CURLSHE_OK:
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return "no error";
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case CURLSHE_BAD_OPTION:
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return "unknown share option";
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case CURLSHE_IN_USE:
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return "share currently in use";
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case CURLSHE_INVALID:
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return "invalid share handle";
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case CURLSHE_NOMEM:
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return "out of memory";
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case CURLSHE_LAST:
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break;
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}
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return "CURLSH unknown";
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}
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#if defined(WIN32) && !defined(__CYGWIN__)
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/* This function handles most / all (?) Winsock errors cURL is able to produce.
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*/
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static const char *
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get_winsock_error (int err, char *buf, size_t len)
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{
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char *p;
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switch (err) {
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case WSAEINTR:
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p = "Call interrupted.";
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break;
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case WSAEBADF:
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p = "Bad file";
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break;
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case WSAEACCES:
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p = "Bad access";
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break;
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case WSAEFAULT:
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p = "Bad argument";
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break;
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case WSAEINVAL:
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p = "Invalid arguments";
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break;
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case WSAEMFILE:
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p = "Out of file descriptors";
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break;
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case WSAEWOULDBLOCK:
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p = "Call would block";
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break;
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case WSAEINPROGRESS:
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case WSAEALREADY:
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p = "Blocking call in progress";
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break;
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case WSAENOTSOCK:
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p = "Descriptor is not a socket.";
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break;
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case WSAEDESTADDRREQ:
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p = "Need destination address";
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break;
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case WSAEMSGSIZE:
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p = "Bad message size";
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break;
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case WSAEPROTOTYPE:
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p = "Bad protocol";
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break;
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case WSAENOPROTOOPT:
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p = "Protocol option is unsupported";
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break;
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case WSAEPROTONOSUPPORT:
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p = "Protocol is unsupported";
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break;
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case WSAESOCKTNOSUPPORT:
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p = "Socket is unsupported";
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break;
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case WSAEOPNOTSUPP:
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p = "Operation not supported";
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break;
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case WSAEAFNOSUPPORT:
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p = "Address family not supported";
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break;
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case WSAEPFNOSUPPORT:
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p = "Protocol family not supported";
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break;
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case WSAEADDRINUSE:
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p = "Address already in use";
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break;
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case WSAEADDRNOTAVAIL:
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p = "Address not available";
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break;
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case WSAENETDOWN:
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p = "Network down";
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break;
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case WSAENETUNREACH:
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p = "Network unreachable";
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break;
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case WSAENETRESET:
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p = "Network has been reset";
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break;
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case WSAECONNABORTED:
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p = "Connection was aborted";
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break;
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case WSAECONNRESET:
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p = "Connection was reset";
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break;
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case WSAENOBUFS:
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p = "No buffer space";
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break;
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case WSAEISCONN:
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p = "Socket is already connected";
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break;
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case WSAENOTCONN:
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p = "Socket is not connected";
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break;
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case WSAESHUTDOWN:
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p = "Socket has been shut down";
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break;
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case WSAETOOMANYREFS:
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p = "Too many references";
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break;
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case WSAETIMEDOUT:
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p = "Timed out";
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break;
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case WSAECONNREFUSED:
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p = "Connection refused";
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break;
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case WSAELOOP:
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p = "Loop??";
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break;
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case WSAENAMETOOLONG:
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p = "Name too long";
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break;
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case WSAEHOSTDOWN:
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p = "Host down";
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break;
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case WSAEHOSTUNREACH:
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p = "Host unreachable";
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break;
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case WSAENOTEMPTY:
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p = "Not empty";
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break;
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case WSAEPROCLIM:
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p = "Process limit reached";
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break;
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case WSAEUSERS:
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p = "Too many users";
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break;
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case WSAEDQUOT:
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p = "Bad quota";
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break;
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case WSAESTALE:
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p = "Something is stale";
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break;
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case WSAEREMOTE:
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p = "Remote error";
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break;
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case WSAEDISCON:
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p = "Disconnected";
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break;
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/* Extended Winsock errors */
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case WSASYSNOTREADY:
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p = "Winsock library is not ready";
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break;
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case WSANOTINITIALISED:
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p = "Winsock library not initalised";
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break;
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case WSAVERNOTSUPPORTED:
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p = "Winsock version not supported.";
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break;
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/* getXbyY() errors (already handled in herrmsg):
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* Authoritative Answer: Host not found */
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case WSAHOST_NOT_FOUND:
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p = "Host not found";
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break;
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/* Non-Authoritative: Host not found, or SERVERFAIL */
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case WSATRY_AGAIN:
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p = "Host not found, try again";
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break;
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/* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
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case WSANO_RECOVERY:
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p = "Unrecoverable error in call to nameserver";
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break;
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/* Valid name, no data record of requested type */
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case WSANO_DATA:
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p = "No data record of requested type";
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break;
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default:
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return NULL;
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}
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strncpy (buf, p, len);
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buf [len-1] = '\0';
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return buf;
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}
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#endif /* WIN32 && !__CYGWIN__ */
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/*
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* Our thread-safe and smart strerror() replacement.
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*
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* The 'err' argument passed in to this function MUST be a true errno number
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* as reported on this system. We do no range checking on the number before
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* we pass it to the "number-to-message" convertion function and there might
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* be systems that don't do proper range checking in there themselves.
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*
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* We don't do range checking (on systems other than Windows) since there is
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* no good reliable and portable way to do it.
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*/
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const char *Curl_strerror(struct connectdata *conn, int err)
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{
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char *buf, *p;
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size_t max;
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curlassert(conn);
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curlassert(err >= 0);
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buf = conn->syserr_buf;
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max = sizeof(conn->syserr_buf)-1;
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*buf = '\0';
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#if defined(WIN32) && !defined(__CYGWIN__)
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/* 'sys_nerr' is the maximum errno number, it is not widely portable */
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if (err >= 0 && err < sys_nerr)
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strncpy(buf, strerror(err), max);
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else {
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if (!get_winsock_error (err, buf, max) &&
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!FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, err,
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LANG_NEUTRAL, buf, max, NULL))
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snprintf(buf, max, "Unknown error %d (%#x)", err, err);
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}
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#else /* not native Windows coming up */
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/* These should be atomic and hopefully thread-safe */
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#ifdef HAVE_STRERROR_R
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/* There are two different APIs for strerror_r(). The POSIX and the GLIBC
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versions. */
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#ifdef HAVE_POSIX_STRERROR_R
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strerror_r(err, buf, max);
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/* this may set errno to ERANGE if insufficient storage was supplied via
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'strerrbuf' and 'buflen' to contain the generated message string, or
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EINVAL if the value of 'errnum' is not a valid error number.*/
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#else
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{
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/* HAVE_GLIBC_STRERROR_R */
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char buffer[256];
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char *msg = strerror_r(err, buffer, sizeof(buffer));
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/* this version of strerror_r() only *might* use the buffer we pass to
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the function, but it always returns the error message as a pointer,
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so we must copy that string unconditionally */
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strncpy(buf, msg, max);
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}
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#endif /* end of HAVE_GLIBC_STRERROR_R */
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#else /* HAVE_STRERROR_R */
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strncpy(buf, strerror(err), max);
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#endif /* end of HAVE_STRERROR_R */
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#endif /* end of ! Windows */
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buf[max] = '\0'; /* make sure the string is zero terminated */
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|
|
/* strip trailing '\r\n' or '\n'. */
|
|
if ((p = strrchr(buf,'\n')) != NULL && (p - buf) >= 2)
|
|
*p = '\0';
|
|
if ((p = strrchr(buf,'\r')) != NULL && (p - buf) >= 1)
|
|
*p = '\0';
|
|
return buf;
|
|
}
|