mirror of
https://github.com/kasmtech/KasmVNC.git
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100 lines
2.8 KiB
C++
100 lines
2.8 KiB
C++
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
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* Copyright (C) 2004 Red Hat Inc.
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* Copyright (C) 2010 TigerVNC Team
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <stdarg.h>
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#include <rdr/Exception.h>
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#include <rdr/TLSException.h>
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#ifdef _WIN32
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#include <tchar.h>
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#include <winsock2.h>
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#include <windows.h>
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#endif
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#include <string.h>
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#ifdef HAVE_GNUTLS
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#include <gnutls/gnutls.h>
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#endif
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using namespace rdr;
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Exception::Exception(const char *format, ...) {
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va_list ap;
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va_start(ap, format);
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(void) vsnprintf(str_, len, format, ap);
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va_end(ap);
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}
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SystemException::SystemException(const char* s, int err_)
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: Exception("%s", s), err(err_)
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{
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strncat(str_, ": ", len-1-strlen(str_));
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#ifdef _WIN32
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// Windows error messages are crap, so use unix ones for common errors.
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const char* msg = 0;
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switch (err) {
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case WSAECONNREFUSED: msg = "Connection refused"; break;
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case WSAETIMEDOUT: msg = "Connection timed out"; break;
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case WSAECONNRESET: msg = "Connection reset by peer"; break;
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case WSAECONNABORTED: msg = "Connection aborted"; break;
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}
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if (msg) {
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strncat(str_, msg, len-1-strlen(str_));
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} else {
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#ifdef UNICODE
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WCHAR* tmsg = new WCHAR[len-strlen(str_)];
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FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
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0, err, 0, tmsg, len-1-strlen(str_), 0);
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WideCharToMultiByte(CP_ACP, 0, tmsg, wcslen(tmsg)+1,
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str_+strlen(str_), len-strlen(str_), 0, 0);
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delete [] tmsg;
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#else
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char* currStr = str_+strlen(str_);
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FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
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0, err, 0, currStr, len-1-strlen(str_), 0);
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#endif
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int l = strlen(str_);
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if ((l >= 2) && (str_[l-2] == '\r') && (str_[l-1] == '\n'))
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str_[l-2] = 0;
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}
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#else
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strncat(str_, strerror(err), len-1-strlen(str_));
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#endif
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strncat(str_, " (", len-1-strlen(str_));
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char buf[20];
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#ifdef WIN32
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if (err < 0)
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sprintf(buf, "%x", err);
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else
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#endif
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sprintf(buf,"%d",err);
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strncat(str_, buf, len-1-strlen(str_));
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strncat(str_, ")", len-1-strlen(str_));
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}
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