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curl/lib/strerror.c

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2004 - 2017, 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.haxx.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.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef HAVE_STRERROR_R
# if (!defined(HAVE_POSIX_STRERROR_R) && \
!defined(HAVE_GLIBC_STRERROR_R) && \
!defined(HAVE_VXWORKS_STRERROR_R)) || \
(defined(HAVE_POSIX_STRERROR_R) && defined(HAVE_VXWORKS_STRERROR_R)) || \
(defined(HAVE_GLIBC_STRERROR_R) && defined(HAVE_VXWORKS_STRERROR_R)) || \
(defined(HAVE_POSIX_STRERROR_R) && defined(HAVE_GLIBC_STRERROR_R))
# error "strerror_r MUST be either POSIX, glibc or vxworks-style"
# endif
#endif
#include <curl/curl.h>
#ifdef USE_LIBIDN2
#include <idn2.h>
#endif
#ifdef USE_WINDOWS_SSPI
#include "curl_sspi.h"
#endif
#include "strerror.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#if defined(WIN32) || defined(_WIN32_WCE)
#define PRESERVE_WINDOWS_ERROR_CODE
#endif
const char *
curl_easy_strerror(CURLcode error)
{
#ifndef CURL_DISABLE_VERBOSE_STRINGS
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 "Couldn't resolve proxy name";
case CURLE_COULDNT_RESOLVE_HOST:
return "Couldn't resolve host name";
case CURLE_COULDNT_CONNECT:
return "Couldn't 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: can't 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: couldn't set file type";
case CURLE_PARTIAL_FILE:
return "Transferred a partial file";
case CURLE_FTP_COULDNT_RETR_FILE:
return "FTP: couldn't 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_HTTP_POST_ERROR:
return "Internal problem setting up the POST";
case CURLE_SSL_CONNECT_ERROR:
return "SSL connect error";
case CURLE_BAD_DOWNLOAD_RESUME:
return "Couldn't resume download";
case CURLE_FILE_COULDNT_READ_FILE:
return "Couldn't read a file:// file";
case CURLE_LDAP_CANNOT_BIND:
return "LDAP: cannot bind";
case CURLE_LDAP_SEARCH_FAILED:
return "LDAP: search failed";
case CURLE_FUNCTION_NOT_FOUND:
return "A required function in the library was not found";
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_TELNET_OPTION_SYNTAX :
return "Malformed telnet option";
case CURLE_PEER_FAILED_VERIFICATION:
return "SSL peer certificate or SSH remote key was not OK";
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 "Couldn't use specified SSL cipher";
case CURLE_SSL_CACERT:
return "Peer certificate cannot be authenticated with given CA "
"certificates";
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_LDAP_INVALID_URL:
return "Invalid LDAP URL";
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_CONV_FAILED:
return "Conversion failed";
case CURLE_CONV_REQD:
return "Caller must register CURLOPT_CONV_ callback options";
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";
/* error codes not used by current libcurl */
case CURLE_OBSOLETE20:
case CURLE_OBSOLETE24:
case CURLE_OBSOLETE29:
case CURLE_OBSOLETE32:
case CURLE_OBSOLETE40:
case CURLE_OBSOLETE44:
case CURLE_OBSOLETE46:
case CURLE_OBSOLETE50:
case CURLE_OBSOLETE57:
case CURL_LAST:
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 can't forget.
*
* A table would not have the same benefit. Most compilers will
* generate code very similar to a table in any case, so there
* is little performance gain from a table. And something is broken
* for the user's application, anyways, so does it matter how fast
* it _doesn't_ 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)
{
#ifndef CURL_DISABLE_VERBOSE_STRINGS
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_LAST:
break;
}
return "Unknown error";
#else
if(error == CURLM_OK)
return "No error";
else
return "Error";
#endif
}
const char *
curl_share_strerror(CURLSHcode error)
{
#ifndef CURL_DISABLE_VERBOSE_STRINGS
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
}
#ifdef USE_WINSOCK
/* This function handles most / all (?) Winsock errors curl is able to produce.
*/
static const char *
get_winsock_error (int err, char *buf, size_t len)
{
#ifdef PRESERVE_WINDOWS_ERROR_CODE
DWORD old_win_err = GetLastError();
#endif
int old_errno = errno;
const char *p;
#ifndef CURL_DISABLE_VERBOSE_STRINGS
switch(err) {
case WSAEINTR:
p = "Call interrupted";
break;
case WSAEBADF:
p = "Bad file";
break;
case WSAEACCES:
p = "Bad access";
break;
case WSAEFAULT:
p = "Bad argument";
break;
case WSAEINVAL:
p = "Invalid arguments";
break;
case WSAEMFILE:
p = "Out of file descriptors";
break;
case WSAEWOULDBLOCK:
p = "Call would block";
break;
case WSAEINPROGRESS:
case WSAEALREADY:
p = "Blocking call in progress";
break;
case WSAENOTSOCK:
p = "Descriptor is not a socket";
break;
case WSAEDESTADDRREQ:
p = "Need destination address";
break;
case WSAEMSGSIZE:
p = "Bad message size";
break;
case WSAEPROTOTYPE:
p = "Bad protocol";
break;
case WSAENOPROTOOPT:
p = "Protocol option is unsupported";
break;
case WSAEPROTONOSUPPORT:
p = "Protocol is unsupported";
break;
case WSAESOCKTNOSUPPORT:
p = "Socket is unsupported";
break;
case WSAEOPNOTSUPP:
p = "Operation not supported";
break;
case WSAEAFNOSUPPORT:
p = "Address family not supported";
break;
case WSAEPFNOSUPPORT:
p = "Protocol family not supported";
break;
case WSAEADDRINUSE:
p = "Address already in use";
break;
case WSAEADDRNOTAVAIL:
p = "Address not available";
break;
case WSAENETDOWN:
p = "Network down";
break;
case WSAENETUNREACH:
p = "Network unreachable";
break;
case WSAENETRESET:
p = "Network has been reset";
break;
case WSAECONNABORTED:
p = "Connection was aborted";
break;
case WSAECONNRESET:
p = "Connection was reset";
break;
case WSAENOBUFS:
p = "No buffer space";
break;
case WSAEISCONN:
p = "Socket is already connected";
break;
case WSAENOTCONN:
p = "Socket is not connected";
break;
case WSAESHUTDOWN:
p = "Socket has been shut down";
break;
case WSAETOOMANYREFS:
p = "Too many references";
break;
case WSAETIMEDOUT:
p = "Timed out";
break;
case WSAECONNREFUSED:
p = "Connection refused";
break;
case WSAELOOP:
p = "Loop??";
break;
case WSAENAMETOOLONG:
p = "Name too long";
break;
case WSAEHOSTDOWN:
p = "Host down";
break;
case WSAEHOSTUNREACH:
p = "Host unreachable";
break;
case WSAENOTEMPTY:
p = "Not empty";
break;
case WSAEPROCLIM:
p = "Process limit reached";
break;
case WSAEUSERS:
p = "Too many users";
break;
case WSAEDQUOT:
p = "Bad quota";
break;
case WSAESTALE:
p = "Something is stale";
break;
case WSAEREMOTE:
p = "Remote error";
break;
#ifdef WSAEDISCON /* missing in SalfordC! */
case WSAEDISCON:
p = "Disconnected";
break;
#endif
/* Extended Winsock errors */
case WSASYSNOTREADY:
p = "Winsock library is not ready";
break;
case WSANOTINITIALISED:
p = "Winsock library not initialised";
break;
case WSAVERNOTSUPPORTED:
p = "Winsock version not supported";
break;
/* getXbyY() errors (already handled in herrmsg):
* Authoritative Answer: Host not found */
case WSAHOST_NOT_FOUND:
p = "Host not found";
break;
/* Non-Authoritative: Host not found, or SERVERFAIL */
case WSATRY_AGAIN:
p = "Host not found, try again";
break;
/* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
case WSANO_RECOVERY:
p = "Unrecoverable error in call to nameserver";
break;
/* Valid name, no data record of requested type */
case WSANO_DATA:
p = "No data record of requested type";
break;
default:
return NULL;
}
#else
if(!err)
return NULL;
else
p = "error";
#endif
strncpy(buf, p, len);
buf [len-1] = '\0';
if(errno != old_errno)
errno = old_errno;
#ifdef PRESERVE_WINDOWS_ERROR_CODE
if(old_win_err != GetLastError())
SetLastError(old_win_err);
#endif
return buf;
}
#endif /* USE_WINSOCK */
/*
* Our thread-safe and smart strerror() replacement.
*
* The 'err' argument passed in to this function MUST be a true errno number
* as reported on this system. We do no range checking on the number before
* we pass it to the "number-to-message" conversion function and there might
* be systems that don't do proper range checking in there themselves.
*
* We don't do range checking (on systems other than Windows) since there is
* no good reliable and portable way to do it.
*/
const char *Curl_strerror(struct connectdata *conn, int err)
{
#ifdef PRESERVE_WINDOWS_ERROR_CODE
DWORD old_win_err = GetLastError();
#endif
int old_errno = errno;
char *buf, *p;
size_t max;
DEBUGASSERT(conn);
DEBUGASSERT(err >= 0);
buf = conn->syserr_buf;
max = sizeof(conn->syserr_buf)-1;
*buf = '\0';
#ifdef USE_WINSOCK
#ifdef _WIN32_WCE
{
wchar_t wbuf[256];
wbuf[0] = L'\0';
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err,
LANG_NEUTRAL, wbuf, sizeof(wbuf)/sizeof(wchar_t), NULL);
wcstombs(buf, wbuf, max);
}
#else
/* 'sys_nerr' is the maximum errno number, it is not widely portable */
if(err >= 0 && err < sys_nerr)
strncpy(buf, strerror(err), max);
else {
if(!get_winsock_error(err, buf, max) &&
!FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err,
LANG_NEUTRAL, buf, (DWORD)max, NULL))
snprintf(buf, max, "Unknown error %d (%#x)", err, err);
}
#endif
#else /* not USE_WINSOCK coming up */
#if defined(HAVE_STRERROR_R) && defined(HAVE_POSIX_STRERROR_R)
/*
* The POSIX-style strerror_r() may set errno to ERANGE if insufficient
* storage is supplied via 'strerrbuf' and 'buflen' to hold the generated
* message string, or EINVAL if 'errnum' is not a valid error number.
*/
if(0 != strerror_r(err, buf, max)) {
if('\0' == buf[0])
snprintf(buf, max, "Unknown error %d", err);
}
#elif defined(HAVE_STRERROR_R) && defined(HAVE_GLIBC_STRERROR_R)
/*
* The glibc-style strerror_r() only *might* use the buffer we pass to
* the function, but it always returns the error message as a pointer,
* so we must copy that string unconditionally (if non-NULL).
*/
{
char buffer[256];
char *msg = strerror_r(err, buffer, sizeof(buffer));
if(msg)
strncpy(buf, msg, max);
else
snprintf(buf, max, "Unknown error %d", err);
}
#elif defined(HAVE_STRERROR_R) && defined(HAVE_VXWORKS_STRERROR_R)
/*
* The vxworks-style strerror_r() does use the buffer we pass to the function.
* The buffer size should be at least NAME_MAX (256)
*/
{
char buffer[256];
if(OK == strerror_r(err, buffer))
strncpy(buf, buffer, max);
else
snprintf(buf, max, "Unknown error %d", err);
}
#else
{
char *msg = strerror(err);
if(msg)
strncpy(buf, msg, max);
else
snprintf(buf, max, "Unknown error %d", err);
}
#endif
#endif /* end of ! USE_WINSOCK */
buf[max] = '\0'; /* make sure the string is zero terminated */
/* strip trailing '\r\n' or '\n'. */
p = strrchr(buf, '\n');
if(p && (p - buf) >= 2)
*p = '\0';
p = strrchr(buf, '\r');
if(p && (p - buf) >= 1)
*p = '\0';
if(errno != old_errno)
errno = old_errno;
#ifdef PRESERVE_WINDOWS_ERROR_CODE
if(old_win_err != GetLastError())
SetLastError(old_win_err);
#endif
return buf;
}
#ifdef USE_WINDOWS_SSPI
const char *Curl_sspi_strerror (struct connectdata *conn, int err)
{
#ifdef PRESERVE_WINDOWS_ERROR_CODE
DWORD old_win_err = GetLastError();
#endif
int old_errno = errno;
const char *txt;
char *outbuf;
size_t outmax;
#ifndef CURL_DISABLE_VERBOSE_STRINGS
char txtbuf[80];
char msgbuf[sizeof(conn->syserr_buf)];
char *p, *str, *msg = NULL;
bool msg_formatted = FALSE;
#endif
DEBUGASSERT(conn);
outbuf = conn->syserr_buf;
outmax = sizeof(conn->syserr_buf)-1;
*outbuf = '\0';
#ifndef CURL_DISABLE_VERBOSE_STRINGS
switch(err) {
case SEC_E_OK:
txt = "No error";
break;
case CRYPT_E_REVOKED:
txt = "CRYPT_E_REVOKED";
break;
case SEC_E_ALGORITHM_MISMATCH:
txt = "SEC_E_ALGORITHM_MISMATCH";
break;
case SEC_E_BAD_BINDINGS:
txt = "SEC_E_BAD_BINDINGS";
break;
case SEC_E_BAD_PKGID:
txt = "SEC_E_BAD_PKGID";
break;
case SEC_E_BUFFER_TOO_SMALL:
txt = "SEC_E_BUFFER_TOO_SMALL";
break;
case SEC_E_CANNOT_INSTALL:
txt = "SEC_E_CANNOT_INSTALL";
break;
case SEC_E_CANNOT_PACK:
txt = "SEC_E_CANNOT_PACK";
break;
case SEC_E_CERT_EXPIRED:
txt = "SEC_E_CERT_EXPIRED";
break;
case SEC_E_CERT_UNKNOWN:
txt = "SEC_E_CERT_UNKNOWN";
break;
case SEC_E_CERT_WRONG_USAGE:
txt = "SEC_E_CERT_WRONG_USAGE";
break;
case SEC_E_CONTEXT_EXPIRED:
txt = "SEC_E_CONTEXT_EXPIRED";
break;
case SEC_E_CROSSREALM_DELEGATION_FAILURE:
txt = "SEC_E_CROSSREALM_DELEGATION_FAILURE";
break;
case SEC_E_CRYPTO_SYSTEM_INVALID:
txt = "SEC_E_CRYPTO_SYSTEM_INVALID";
break;
case SEC_E_DECRYPT_FAILURE:
txt = "SEC_E_DECRYPT_FAILURE";
break;
case SEC_E_DELEGATION_POLICY:
txt = "SEC_E_DELEGATION_POLICY";
break;
case SEC_E_DELEGATION_REQUIRED:
txt = "SEC_E_DELEGATION_REQUIRED";
break;
case SEC_E_DOWNGRADE_DETECTED:
txt = "SEC_E_DOWNGRADE_DETECTED";
break;
case SEC_E_ENCRYPT_FAILURE:
txt = "SEC_E_ENCRYPT_FAILURE";
break;
case SEC_E_ILLEGAL_MESSAGE:
txt = "SEC_E_ILLEGAL_MESSAGE";
break;
case SEC_E_INCOMPLETE_CREDENTIALS:
txt = "SEC_E_INCOMPLETE_CREDENTIALS";
break;
case SEC_E_INCOMPLETE_MESSAGE:
txt = "SEC_E_INCOMPLETE_MESSAGE";
break;
case SEC_E_INSUFFICIENT_MEMORY:
txt = "SEC_E_INSUFFICIENT_MEMORY";
break;
case SEC_E_INTERNAL_ERROR:
txt = "SEC_E_INTERNAL_ERROR";
break;
case SEC_E_INVALID_HANDLE:
txt = "SEC_E_INVALID_HANDLE";
break;
case SEC_E_INVALID_PARAMETER:
txt = "SEC_E_INVALID_PARAMETER";
break;
case SEC_E_INVALID_TOKEN:
txt = "SEC_E_INVALID_TOKEN";
break;
case SEC_E_ISSUING_CA_UNTRUSTED:
txt = "SEC_E_ISSUING_CA_UNTRUSTED";
break;
case SEC_E_ISSUING_CA_UNTRUSTED_KDC:
txt = "SEC_E_ISSUING_CA_UNTRUSTED_KDC";
break;
case SEC_E_KDC_CERT_EXPIRED:
txt = "SEC_E_KDC_CERT_EXPIRED";
break;
case SEC_E_KDC_CERT_REVOKED:
txt = "SEC_E_KDC_CERT_REVOKED";
break;
case SEC_E_KDC_INVALID_REQUEST:
txt = "SEC_E_KDC_INVALID_REQUEST";
break;
case SEC_E_KDC_UNABLE_TO_REFER:
txt = "SEC_E_KDC_UNABLE_TO_REFER";
break;
case SEC_E_KDC_UNKNOWN_ETYPE:
txt = "SEC_E_KDC_UNKNOWN_ETYPE";
break;
case SEC_E_LOGON_DENIED:
txt = "SEC_E_LOGON_DENIED";
break;
case SEC_E_MAX_REFERRALS_EXCEEDED:
txt = "SEC_E_MAX_REFERRALS_EXCEEDED";
break;
case SEC_E_MESSAGE_ALTERED:
txt = "SEC_E_MESSAGE_ALTERED";
break;
case SEC_E_MULTIPLE_ACCOUNTS:
txt = "SEC_E_MULTIPLE_ACCOUNTS";
break;
case SEC_E_MUST_BE_KDC:
txt = "SEC_E_MUST_BE_KDC";
break;
case SEC_E_NOT_OWNER:
txt = "SEC_E_NOT_OWNER";
break;
case SEC_E_NO_AUTHENTICATING_AUTHORITY:
txt = "SEC_E_NO_AUTHENTICATING_AUTHORITY";
break;
case SEC_E_NO_CREDENTIALS:
txt = "SEC_E_NO_CREDENTIALS";
break;
case SEC_E_NO_IMPERSONATION:
txt = "SEC_E_NO_IMPERSONATION";
break;
case SEC_E_NO_IP_ADDRESSES:
txt = "SEC_E_NO_IP_ADDRESSES";
break;
case SEC_E_NO_KERB_KEY:
txt = "SEC_E_NO_KERB_KEY";
break;
case SEC_E_NO_PA_DATA:
txt = "SEC_E_NO_PA_DATA";
break;
case SEC_E_NO_S4U_PROT_SUPPORT:
txt = "SEC_E_NO_S4U_PROT_SUPPORT";
break;
case SEC_E_NO_TGT_REPLY:
txt = "SEC_E_NO_TGT_REPLY";
break;
case SEC_E_OUT_OF_SEQUENCE:
txt = "SEC_E_OUT_OF_SEQUENCE";
break;
case SEC_E_PKINIT_CLIENT_FAILURE:
txt = "SEC_E_PKINIT_CLIENT_FAILURE";
break;
case SEC_E_PKINIT_NAME_MISMATCH:
txt = "SEC_E_PKINIT_NAME_MISMATCH";
break;
case SEC_E_POLICY_NLTM_ONLY:
txt = "SEC_E_POLICY_NLTM_ONLY";
break;
case SEC_E_QOP_NOT_SUPPORTED:
txt = "SEC_E_QOP_NOT_SUPPORTED";
break;
case SEC_E_REVOCATION_OFFLINE_C:
txt = "SEC_E_REVOCATION_OFFLINE_C";
break;
case SEC_E_REVOCATION_OFFLINE_KDC:
txt = "SEC_E_REVOCATION_OFFLINE_KDC";
break;
case SEC_E_SECPKG_NOT_FOUND:
txt = "SEC_E_SECPKG_NOT_FOUND";
break;
case SEC_E_SECURITY_QOS_FAILED:
txt = "SEC_E_SECURITY_QOS_FAILED";
break;
case SEC_E_SHUTDOWN_IN_PROGRESS:
txt = "SEC_E_SHUTDOWN_IN_PROGRESS";
break;
case SEC_E_SMARTCARD_CERT_EXPIRED:
txt = "SEC_E_SMARTCARD_CERT_EXPIRED";
break;
case SEC_E_SMARTCARD_CERT_REVOKED:
txt = "SEC_E_SMARTCARD_CERT_REVOKED";
break;
case SEC_E_SMARTCARD_LOGON_REQUIRED:
txt = "SEC_E_SMARTCARD_LOGON_REQUIRED";
break;
case SEC_E_STRONG_CRYPTO_NOT_SUPPORTED:
txt = "SEC_E_STRONG_CRYPTO_NOT_SUPPORTED";
break;
case SEC_E_TARGET_UNKNOWN:
txt = "SEC_E_TARGET_UNKNOWN";
break;
case SEC_E_TIME_SKEW:
txt = "SEC_E_TIME_SKEW";
break;
case SEC_E_TOO_MANY_PRINCIPALS:
txt = "SEC_E_TOO_MANY_PRINCIPALS";
break;
case SEC_E_UNFINISHED_CONTEXT_DELETED:
txt = "SEC_E_UNFINISHED_CONTEXT_DELETED";
break;
case SEC_E_UNKNOWN_CREDENTIALS:
txt = "SEC_E_UNKNOWN_CREDENTIALS";
break;
case SEC_E_UNSUPPORTED_FUNCTION:
txt = "SEC_E_UNSUPPORTED_FUNCTION";
break;
case SEC_E_UNSUPPORTED_PREAUTH:
txt = "SEC_E_UNSUPPORTED_PREAUTH";
break;
case SEC_E_UNTRUSTED_ROOT:
txt = "SEC_E_UNTRUSTED_ROOT";
break;
case SEC_E_WRONG_CREDENTIAL_HANDLE:
txt = "SEC_E_WRONG_CREDENTIAL_HANDLE";
break;
case SEC_E_WRONG_PRINCIPAL:
txt = "SEC_E_WRONG_PRINCIPAL";
break;
case SEC_I_COMPLETE_AND_CONTINUE:
txt = "SEC_I_COMPLETE_AND_CONTINUE";
break;
case SEC_I_COMPLETE_NEEDED:
txt = "SEC_I_COMPLETE_NEEDED";
break;
case SEC_I_CONTEXT_EXPIRED:
txt = "SEC_I_CONTEXT_EXPIRED";
break;
case SEC_I_CONTINUE_NEEDED:
txt = "SEC_I_CONTINUE_NEEDED";
break;
case SEC_I_INCOMPLETE_CREDENTIALS:
txt = "SEC_I_INCOMPLETE_CREDENTIALS";
break;
case SEC_I_LOCAL_LOGON:
txt = "SEC_I_LOCAL_LOGON";
break;
case SEC_I_NO_LSA_CONTEXT:
txt = "SEC_I_NO_LSA_CONTEXT";
break;
case SEC_I_RENEGOTIATE:
txt = "SEC_I_RENEGOTIATE";
break;
case SEC_I_SIGNATURE_NEEDED:
txt = "SEC_I_SIGNATURE_NEEDED";
break;
default:
txt = "Unknown error";
}
if(err == SEC_E_OK)
strncpy(outbuf, txt, outmax);
else if(err == SEC_E_ILLEGAL_MESSAGE)
snprintf(outbuf, outmax,
"SEC_E_ILLEGAL_MESSAGE (0x%08X) - 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 {
str = txtbuf;
snprintf(txtbuf, sizeof(txtbuf), "%s (0x%08X)", txt, err);
txtbuf[sizeof(txtbuf)-1] = '\0';
#ifdef _WIN32_WCE
{
wchar_t wbuf[256];
wbuf[0] = L'\0';
if(FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, err, LANG_NEUTRAL,
wbuf, sizeof(wbuf)/sizeof(wchar_t), NULL)) {
wcstombs(msgbuf, wbuf, sizeof(msgbuf)-1);
msg_formatted = TRUE;
}
}
#else
if(FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, err, LANG_NEUTRAL,
msgbuf, sizeof(msgbuf)-1, NULL)) {
msg_formatted = TRUE;
}
#endif
if(msg_formatted) {
msgbuf[sizeof(msgbuf)-1] = '\0';
/* strip trailing '\r\n' or '\n' */
p = strrchr(msgbuf, '\n');
if(p && (p - msgbuf) >= 2)
*p = '\0';
p = strrchr(msgbuf, '\r');
if(p && (p - msgbuf) >= 1)
*p = '\0';
msg = msgbuf;
}
if(msg)
snprintf(outbuf, outmax, "%s - %s", str, msg);
else
strncpy(outbuf, str, outmax);
}
#else
if(err == SEC_E_OK)
txt = "No error";
else
txt = "Error";
strncpy(outbuf, txt, outmax);
#endif
outbuf[outmax] = '\0';
if(errno != old_errno)
errno = old_errno;
#ifdef PRESERVE_WINDOWS_ERROR_CODE
if(old_win_err != GetLastError())
SetLastError(old_win_err);
#endif
return outbuf;
}
#endif /* USE_WINDOWS_SSPI */
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