branch: master
strerror.c
17893 bytesRaw
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
#include "curl_setup.h"
#ifdef USE_WINDOWS_SSPI
#include "curl_sspi.h"
#endif
#include "curlx/winapi.h"
#include "strerror.h"
#include "curlx/strcopy.h"
const char *curl_easy_strerror(CURLcode error)
{
#ifdef CURLVERBOSE
switch(error) {
case CURLE_OK:
return "No error";
case CURLE_UNSUPPORTED_PROTOCOL:
return "Unsupported protocol";
case CURLE_FAILED_INIT:
return "Failed initialization";
case CURLE_URL_MALFORMAT:
return "URL using bad/illegal format or missing URL";
case CURLE_NOT_BUILT_IN:
return "A requested feature, protocol or option was not found built-in in"
" this libcurl due to a build-time decision.";
case CURLE_COULDNT_RESOLVE_PROXY:
return "Could not resolve proxy name";
case CURLE_COULDNT_RESOLVE_HOST:
return "Could not resolve hostname";
case CURLE_COULDNT_CONNECT:
return "Could not connect to server";
case CURLE_WEIRD_SERVER_REPLY:
return "Weird server reply";
case CURLE_REMOTE_ACCESS_DENIED:
return "Access denied to remote resource";
case CURLE_FTP_ACCEPT_FAILED:
return "FTP: The server failed to connect to data port";
case CURLE_FTP_ACCEPT_TIMEOUT:
return "FTP: Accepting server connect has timed out";
case CURLE_FTP_PRET_FAILED:
return "FTP: The server did not accept the PRET command.";
case CURLE_FTP_WEIRD_PASS_REPLY:
return "FTP: unknown PASS reply";
case CURLE_FTP_WEIRD_PASV_REPLY:
return "FTP: unknown PASV reply";
case CURLE_FTP_WEIRD_227_FORMAT:
return "FTP: unknown 227 response format";
case CURLE_FTP_CANT_GET_HOST:
return "FTP: cannot figure out the host in the PASV response";
case CURLE_HTTP2:
return "Error in the HTTP2 framing layer";
case CURLE_FTP_COULDNT_SET_TYPE:
return "FTP: could not set file type";
case CURLE_PARTIAL_FILE:
return "Transferred a partial file";
case CURLE_FTP_COULDNT_RETR_FILE:
return "FTP: could not retrieve (RETR failed) the specified file";
case CURLE_QUOTE_ERROR:
return "Quote command returned error";
case CURLE_HTTP_RETURNED_ERROR:
return "HTTP response code said error";
case CURLE_WRITE_ERROR:
return "Failed writing received data to disk/application";
case CURLE_UPLOAD_FAILED:
return "Upload failed (at start/before it took off)";
case CURLE_READ_ERROR:
return "Failed to open/read local data from file/application";
case CURLE_OUT_OF_MEMORY:
return "Out of memory";
case CURLE_OPERATION_TIMEDOUT:
return "Timeout was reached";
case CURLE_FTP_PORT_FAILED:
return "FTP: command PORT failed";
case CURLE_FTP_COULDNT_USE_REST:
return "FTP: command REST failed";
case CURLE_RANGE_ERROR:
return "Requested range was not delivered by the server";
case CURLE_SSL_CONNECT_ERROR:
return "SSL connect error";
case CURLE_BAD_DOWNLOAD_RESUME:
return "Could not resume download";
case CURLE_FILE_COULDNT_READ_FILE:
return "Could not read a file:// file";
case CURLE_LDAP_CANNOT_BIND:
return "LDAP: cannot bind";
case CURLE_LDAP_SEARCH_FAILED:
return "LDAP: search failed";
case CURLE_ABORTED_BY_CALLBACK:
return "Operation was aborted by an application callback";
case CURLE_BAD_FUNCTION_ARGUMENT:
return "A libcurl function was given a bad argument";
case CURLE_INTERFACE_FAILED:
return "Failed binding local connection end";
case CURLE_TOO_MANY_REDIRECTS:
return "Number of redirects hit maximum amount";
case CURLE_UNKNOWN_OPTION:
return "An unknown option was passed in to libcurl";
case CURLE_SETOPT_OPTION_SYNTAX:
return "Malformed option provided in a setopt";
case CURLE_GOT_NOTHING:
return "Server returned nothing (no headers, no data)";
case CURLE_SSL_ENGINE_NOTFOUND:
return "SSL crypto engine not found";
case CURLE_SSL_ENGINE_SETFAILED:
return "Can not set SSL crypto engine as default";
case CURLE_SSL_ENGINE_INITFAILED:
return "Failed to initialise SSL crypto engine";
case CURLE_SEND_ERROR:
return "Failed sending data to the peer";
case CURLE_RECV_ERROR:
return "Failure when receiving data from the peer";
case CURLE_SSL_CERTPROBLEM:
return "Problem with the local SSL certificate";
case CURLE_SSL_CIPHER:
return "Could not use specified SSL cipher";
case CURLE_PEER_FAILED_VERIFICATION:
return "SSL peer certificate or SSH remote key was not OK";
case CURLE_SSL_CACERT_BADFILE:
return "Problem with the SSL CA cert (path? access rights?)";
case CURLE_BAD_CONTENT_ENCODING:
return "Unrecognized or bad HTTP Content or Transfer-Encoding";
case CURLE_FILESIZE_EXCEEDED:
return "Maximum file size exceeded";
case CURLE_USE_SSL_FAILED:
return "Requested SSL level failed";
case CURLE_SSL_SHUTDOWN_FAILED:
return "Failed to shut down the SSL connection";
case CURLE_SSL_CRL_BADFILE:
return "Failed to load CRL file (path? access rights?, format?)";
case CURLE_SSL_ISSUER_ERROR:
return "Issuer check against peer certificate failed";
case CURLE_SEND_FAIL_REWIND:
return "Send failed since rewinding of the data stream failed";
case CURLE_LOGIN_DENIED:
return "Login denied";
case CURLE_TFTP_NOTFOUND:
return "TFTP: File Not Found";
case CURLE_TFTP_PERM:
return "TFTP: Access Violation";
case CURLE_REMOTE_DISK_FULL:
return "Disk full or allocation exceeded";
case CURLE_TFTP_ILLEGAL:
return "TFTP: Illegal operation";
case CURLE_TFTP_UNKNOWNID:
return "TFTP: Unknown transfer ID";
case CURLE_REMOTE_FILE_EXISTS:
return "Remote file already exists";
case CURLE_TFTP_NOSUCHUSER:
return "TFTP: No such user";
case CURLE_REMOTE_FILE_NOT_FOUND:
return "Remote file not found";
case CURLE_SSH:
return "Error in the SSH layer";
case CURLE_AGAIN:
return "Socket not ready for send/recv";
case CURLE_RTSP_CSEQ_ERROR:
return "RTSP CSeq mismatch or invalid CSeq";
case CURLE_RTSP_SESSION_ERROR:
return "RTSP session error";
case CURLE_FTP_BAD_FILE_LIST:
return "Unable to parse FTP file list";
case CURLE_CHUNK_FAILED:
return "Chunk callback failed";
case CURLE_NO_CONNECTION_AVAILABLE:
return "The max connection limit is reached";
case CURLE_SSL_PINNEDPUBKEYNOTMATCH:
return "SSL public key does not match pinned public key";
case CURLE_SSL_INVALIDCERTSTATUS:
return "SSL server certificate status verification FAILED";
case CURLE_HTTP2_STREAM:
return "Stream error in the HTTP/2 framing layer";
case CURLE_RECURSIVE_API_CALL:
return "API function called from within callback";
case CURLE_AUTH_ERROR:
return "An authentication function returned an error";
case CURLE_HTTP3:
return "HTTP/3 error";
case CURLE_QUIC_CONNECT_ERROR:
return "QUIC connection error";
case CURLE_PROXY:
return "proxy handshake error";
case CURLE_SSL_CLIENTCERT:
return "SSL Client Certificate required";
case CURLE_UNRECOVERABLE_POLL:
return "Unrecoverable error in select/poll";
case CURLE_TOO_LARGE:
return "A value or data field grew larger than allowed";
case CURLE_ECH_REQUIRED:
return "ECH attempted but failed";
/* error codes not used by current libcurl */
default:
break;
}
/*
* By using a switch, gcc -Wall will complain about enum values
* which do not appear, helping keep this function up-to-date.
* By using gcc -Wall -Werror, you cannot forget.
*
* A table would not have the same benefit. Most compilers will generate
* code similar to a table in any case, so there is little performance gain
* from a table. Something is broken for the user's application, anyways, so
* does it matter how fast it _does not_ work?
*
* The line number for the error will be near this comment, which is why it
* is here, and not at the start of the switch.
*/
return "Unknown error";
#else
if(!error)
return "No error";
else
return "Error";
#endif
}
const char *curl_multi_strerror(CURLMcode error)
{
#ifdef CURLVERBOSE
switch(error) {
case CURLM_CALL_MULTI_PERFORM:
return "Please call curl_multi_perform() soon";
case CURLM_OK:
return "No error";
case CURLM_BAD_HANDLE:
return "Invalid multi handle";
case CURLM_BAD_EASY_HANDLE:
return "Invalid easy handle";
case CURLM_OUT_OF_MEMORY:
return "Out of memory";
case CURLM_INTERNAL_ERROR:
return "Internal error";
case CURLM_BAD_SOCKET:
return "Invalid socket argument";
case CURLM_UNKNOWN_OPTION:
return "Unknown option";
case CURLM_ADDED_ALREADY:
return "The easy handle is already added to a multi handle";
case CURLM_RECURSIVE_API_CALL:
return "API function called from within callback";
case CURLM_WAKEUP_FAILURE:
return "Wakeup is unavailable or failed";
case CURLM_BAD_FUNCTION_ARGUMENT:
return "A libcurl function was given a bad argument";
case CURLM_ABORTED_BY_CALLBACK:
return "Operation was aborted by an application callback";
case CURLM_UNRECOVERABLE_POLL:
return "Unrecoverable error in select/poll";
case CURLM_LAST:
break;
}
return "Unknown error";
#else
if(error == CURLM_OK)
return "No error";
else
return "Error";
#endif
}
const char *curl_share_strerror(CURLSHcode error)
{
#ifdef CURLVERBOSE
switch(error) {
case CURLSHE_OK:
return "No error";
case CURLSHE_BAD_OPTION:
return "Unknown share option";
case CURLSHE_IN_USE:
return "Share currently in use";
case CURLSHE_INVALID:
return "Invalid share handle";
case CURLSHE_NOMEM:
return "Out of memory";
case CURLSHE_NOT_BUILT_IN:
return "Feature not enabled in this library";
case CURLSHE_LAST:
break;
}
return "CURLSHcode unknown";
#else
if(error == CURLSHE_OK)
return "No error";
else
return "Error";
#endif
}
const char *curl_url_strerror(CURLUcode error)
{
#ifdef CURLVERBOSE
switch(error) {
case CURLUE_OK:
return "No error";
case CURLUE_BAD_HANDLE:
return "An invalid CURLU pointer was passed as argument";
case CURLUE_BAD_PARTPOINTER:
return "An invalid 'part' argument was passed as argument";
case CURLUE_MALFORMED_INPUT:
return "Malformed input to a URL function";
case CURLUE_BAD_PORT_NUMBER:
return "Port number was not a decimal number between 0 and 65535";
case CURLUE_UNSUPPORTED_SCHEME:
return "Unsupported URL scheme";
case CURLUE_URLDECODE:
return "URL decode error, most likely because of rubbish in the input";
case CURLUE_OUT_OF_MEMORY:
return "A memory function failed";
case CURLUE_USER_NOT_ALLOWED:
return "Credentials was passed in the URL when prohibited";
case CURLUE_UNKNOWN_PART:
return "An unknown part ID was passed to a URL API function";
case CURLUE_NO_SCHEME:
return "No scheme part in the URL";
case CURLUE_NO_USER:
return "No user part in the URL";
case CURLUE_NO_PASSWORD:
return "No password part in the URL";
case CURLUE_NO_OPTIONS:
return "No options part in the URL";
case CURLUE_NO_HOST:
return "No host part in the URL";
case CURLUE_NO_PORT:
return "No port part in the URL";
case CURLUE_NO_QUERY:
return "No query part in the URL";
case CURLUE_NO_FRAGMENT:
return "No fragment part in the URL";
case CURLUE_NO_ZONEID:
return "No zoneid part in the URL";
case CURLUE_BAD_LOGIN:
return "Bad login part";
case CURLUE_BAD_IPV6:
return "Bad IPv6 address";
case CURLUE_BAD_HOSTNAME:
return "Bad hostname";
case CURLUE_BAD_FILE_URL:
return "Bad file:// URL";
case CURLUE_BAD_SLASHES:
return "Unsupported number of slashes following scheme";
case CURLUE_BAD_SCHEME:
return "Bad scheme";
case CURLUE_BAD_PATH:
return "Bad path";
case CURLUE_BAD_FRAGMENT:
return "Bad fragment";
case CURLUE_BAD_QUERY:
return "Bad query";
case CURLUE_BAD_PASSWORD:
return "Bad password";
case CURLUE_BAD_USER:
return "Bad user";
case CURLUE_LACKS_IDN:
return "libcurl lacks IDN support";
case CURLUE_TOO_LARGE:
return "A value or data field is larger than allowed";
case CURLUE_LAST:
break;
}
return "CURLUcode unknown";
#else
if(error == CURLUE_OK)
return "No error";
else
return "Error";
#endif
}
#ifdef USE_WINDOWS_SSPI
/*
* Curl_sspi_strerror:
* Variant of curlx_strerror if the error code is definitely Windows SSPI.
*/
const char *Curl_sspi_strerror(SECURITY_STATUS err, char *buf, size_t buflen)
{
#ifdef _WIN32
DWORD old_win_err = GetLastError();
#endif
int old_errno = errno;
VERBOSE(const char *txt);
if(!buflen)
return NULL;
*buf = '\0';
#ifdef CURLVERBOSE
switch(err) {
case SEC_E_OK:
txt = "No error";
break;
#define SEC2TXT(sec) case sec: txt = #sec; break
SEC2TXT(CRYPT_E_REVOKED);
SEC2TXT(CRYPT_E_NO_REVOCATION_DLL);
SEC2TXT(CRYPT_E_NO_REVOCATION_CHECK);
SEC2TXT(CRYPT_E_REVOCATION_OFFLINE);
SEC2TXT(CRYPT_E_NOT_IN_REVOCATION_DATABASE);
SEC2TXT(SEC_E_ALGORITHM_MISMATCH);
SEC2TXT(SEC_E_BAD_BINDINGS);
SEC2TXT(SEC_E_BAD_PKGID);
SEC2TXT(SEC_E_BUFFER_TOO_SMALL);
SEC2TXT(SEC_E_CANNOT_INSTALL);
SEC2TXT(SEC_E_CANNOT_PACK);
SEC2TXT(SEC_E_CERT_EXPIRED);
SEC2TXT(SEC_E_CERT_UNKNOWN);
SEC2TXT(SEC_E_CERT_WRONG_USAGE);
SEC2TXT(SEC_E_CONTEXT_EXPIRED);
SEC2TXT(SEC_E_CROSSREALM_DELEGATION_FAILURE);
SEC2TXT(SEC_E_CRYPTO_SYSTEM_INVALID);
SEC2TXT(SEC_E_DECRYPT_FAILURE);
SEC2TXT(SEC_E_DELEGATION_POLICY);
SEC2TXT(SEC_E_DELEGATION_REQUIRED);
SEC2TXT(SEC_E_DOWNGRADE_DETECTED);
SEC2TXT(SEC_E_ENCRYPT_FAILURE);
SEC2TXT(SEC_E_ILLEGAL_MESSAGE);
SEC2TXT(SEC_E_INCOMPLETE_CREDENTIALS);
SEC2TXT(SEC_E_INCOMPLETE_MESSAGE);
SEC2TXT(SEC_E_INSUFFICIENT_MEMORY);
SEC2TXT(SEC_E_INTERNAL_ERROR);
SEC2TXT(SEC_E_INVALID_HANDLE);
SEC2TXT(SEC_E_INVALID_PARAMETER);
SEC2TXT(SEC_E_INVALID_TOKEN);
SEC2TXT(SEC_E_ISSUING_CA_UNTRUSTED);
SEC2TXT(SEC_E_ISSUING_CA_UNTRUSTED_KDC);
SEC2TXT(SEC_E_KDC_CERT_EXPIRED);
SEC2TXT(SEC_E_KDC_CERT_REVOKED);
SEC2TXT(SEC_E_KDC_INVALID_REQUEST);
SEC2TXT(SEC_E_KDC_UNABLE_TO_REFER);
SEC2TXT(SEC_E_KDC_UNKNOWN_ETYPE);
SEC2TXT(SEC_E_LOGON_DENIED);
SEC2TXT(SEC_E_MAX_REFERRALS_EXCEEDED);
SEC2TXT(SEC_E_MESSAGE_ALTERED);
SEC2TXT(SEC_E_MULTIPLE_ACCOUNTS);
SEC2TXT(SEC_E_MUST_BE_KDC);
SEC2TXT(SEC_E_NOT_OWNER);
SEC2TXT(SEC_E_NO_AUTHENTICATING_AUTHORITY);
SEC2TXT(SEC_E_NO_CREDENTIALS);
SEC2TXT(SEC_E_NO_IMPERSONATION);
SEC2TXT(SEC_E_NO_IP_ADDRESSES);
SEC2TXT(SEC_E_NO_KERB_KEY);
SEC2TXT(SEC_E_NO_PA_DATA);
SEC2TXT(SEC_E_NO_S4U_PROT_SUPPORT);
SEC2TXT(SEC_E_NO_TGT_REPLY);
SEC2TXT(SEC_E_OUT_OF_SEQUENCE);
SEC2TXT(SEC_E_PKINIT_CLIENT_FAILURE);
SEC2TXT(SEC_E_PKINIT_NAME_MISMATCH);
SEC2TXT(SEC_E_POLICY_NLTM_ONLY);
SEC2TXT(SEC_E_QOP_NOT_SUPPORTED);
SEC2TXT(SEC_E_REVOCATION_OFFLINE_C);
SEC2TXT(SEC_E_REVOCATION_OFFLINE_KDC);
SEC2TXT(SEC_E_SECPKG_NOT_FOUND);
SEC2TXT(SEC_E_SECURITY_QOS_FAILED);
SEC2TXT(SEC_E_SHUTDOWN_IN_PROGRESS);
SEC2TXT(SEC_E_SMARTCARD_CERT_EXPIRED);
SEC2TXT(SEC_E_SMARTCARD_CERT_REVOKED);
SEC2TXT(SEC_E_SMARTCARD_LOGON_REQUIRED);
SEC2TXT(SEC_E_STRONG_CRYPTO_NOT_SUPPORTED);
SEC2TXT(SEC_E_TARGET_UNKNOWN);
SEC2TXT(SEC_E_TIME_SKEW);
SEC2TXT(SEC_E_TOO_MANY_PRINCIPALS);
SEC2TXT(SEC_E_UNFINISHED_CONTEXT_DELETED);
SEC2TXT(SEC_E_UNKNOWN_CREDENTIALS);
SEC2TXT(SEC_E_UNSUPPORTED_FUNCTION);
SEC2TXT(SEC_E_UNSUPPORTED_PREAUTH);
SEC2TXT(SEC_E_UNTRUSTED_ROOT);
SEC2TXT(SEC_E_WRONG_CREDENTIAL_HANDLE);
SEC2TXT(SEC_E_WRONG_PRINCIPAL);
SEC2TXT(SEC_I_COMPLETE_AND_CONTINUE);
SEC2TXT(SEC_I_COMPLETE_NEEDED);
SEC2TXT(SEC_I_CONTEXT_EXPIRED);
SEC2TXT(SEC_I_CONTINUE_NEEDED);
SEC2TXT(SEC_I_INCOMPLETE_CREDENTIALS);
SEC2TXT(SEC_I_LOCAL_LOGON);
SEC2TXT(SEC_I_NO_LSA_CONTEXT);
SEC2TXT(SEC_I_RENEGOTIATE);
SEC2TXT(SEC_I_SIGNATURE_NEEDED);
default:
txt = "Unknown error";
}
if(err == SEC_E_ILLEGAL_MESSAGE) {
curl_msnprintf(buf, buflen,
"SEC_E_ILLEGAL_MESSAGE (0x%08lx) - This error usually "
"occurs when a fatal SSL/TLS alert is received (e.g. "
"handshake failed). More detail may be available in "
"the Windows System event log.", err);
}
else {
char msgbuf[256];
if(curlx_get_winapi_error((DWORD)err, msgbuf, sizeof(msgbuf)))
curl_msnprintf(buf, buflen, "%s (0x%08lx) - %s", txt, err, msgbuf);
else
curl_msnprintf(buf, buflen, "%s (0x%08lx)", txt, err);
}
#else /* CURLVERBOSE */
if(err == SEC_E_OK)
curlx_strcopy(buf, buflen, STRCONST("No error"));
else
curlx_strcopy(buf, buflen, STRCONST("Error"));
#endif
if(errno != old_errno)
errno = old_errno;
#ifdef _WIN32
if(old_win_err != GetLastError())
SetLastError(old_win_err);
#endif
return buf;
}
#endif /* USE_WINDOWS_SSPI */