VeraCrypt
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path: root/src/Platform/SystemLog.h
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/*
 Derived from source code of TrueCrypt 7.1a, which is
 Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed
 by the TrueCrypt License 3.0.

 Modifications and additions to the original source code (contained in this file)
 and all other portions of this file are Copyright (c) 2013-2017 IDRIX
 and are governed by the Apache License 2.0 the full text of which is
 contained in the file License.txt included in VeraCrypt binary and source
 code distribution packages.
*/

#ifndef TC_HEADER_Platform_SystemLog
#define TC_HEADER_Platform_SystemLog

#include "Platform/PlatformBase.h"
#include "Platform/StringConverter.h"

namespace VeraCrypt
{
	class SystemLog
	{
	public:
		static void WriteDebug (const string &debugMessage);
		static void WriteError (const string &errorMessage);

		static void WriteException (const exception &ex)
		{
			WriteError (string ("exception: ") + StringConverter::ToSingle (StringConverter::ToExceptionString (ex)));
		}

	protected:
		SystemLog ();
	};

#ifdef DEBUG
#	define tracelog_point do { stringstream s; s << (SRC_POS); SystemLog::WriteError (s.str()); } while (false)
#	define tracelog_msg(stream_args) do { stringstream s; s << (SRC_POS) << ": " << stream_args; SystemLog::WriteError (s.str()); } while (false)
#else
#	define tracelog_point
#	define tracelog_msg(stream_args) while (false) { stringstream s; s << stream_args; }
#endif

}

#endif // TC_HEADER_Platform_SystemLog
ron */ /* NetBSD: gettemp.c,v 1.13 2003/12/05 00:57:36 uebayasi Exp */ /* * Copyright (c) 1987, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <sys/stat.h> #include <sys/types.h> #include <assert.h> #include <ctype.h> #include <errno.h> #include <fcntl.h> #ifdef _WIN32 #include <io.h> #include <process.h> #else #include <unistd.h> #endif #include <stdio.h> #include <stdlib.h> #ifndef O_BINARY #define O_BINARY 0 #endif int _zip_mkstemp(char *path) { #ifdef _WIN32 int ret; ret = _creat(_mktemp(path), _S_IREAD | _S_IWRITE); if (ret == -1) { return 0; } else { return ret; } #else int fd; char *start, *trv; struct stat sbuf; pid_t pid; /* To guarantee multiple calls generate unique names even if the file is not created. 676 different possibilities with 7 or more X's, 26 with 6 or less. */ static char xtra[2] = "aa"; int xcnt = 0; pid = getpid(); /* Move to end of path and count trailing X's. */ for (trv = path; *trv; ++trv) if (*trv == 'X') xcnt++; else xcnt = 0; /* Use at least one from xtra. Use 2 if more than 6 X's. */ if (*(trv - 1) == 'X') *--trv = xtra[0]; if (xcnt > 6 && *(trv - 1) == 'X') *--trv = xtra[1]; /* Set remaining X's to pid digits with 0's to the left. */ while (*--trv == 'X') { *trv = (pid % 10) + '0'; pid /= 10; } /* update xtra for next call. */ if (xtra[0] != 'z') xtra[0]++; else { xtra[0] = 'a'; if (xtra[1] != 'z') xtra[1]++; else xtra[1] = 'a'; } /* * check the target directory; if you have six X's and it * doesn't exist this runs for a *very* long time. */ for (start = trv + 1;; --trv) { if (trv <= path) break; if (*trv == '/') { *trv = '\0'; if (stat(path, &sbuf)) return (0); if (!S_ISDIR(sbuf.st_mode)) { errno = ENOTDIR; return (0); } *trv = '/'; break; } } for (;;) { if ((fd = open(path, O_CREAT | O_EXCL | O_RDWR | O_BINARY, 0600)) >= 0) return (fd); if (errno != EEXIST) return (0); /* tricky little algorithm for backward compatibility */ for (trv = start;;) { if (!*trv) return (0); if (*trv == 'z') *trv++ = 'a'; else { if (isdigit((unsigned char)*trv)) *trv = 'a'; else ++*trv; break; } } } /*NOTREACHED*/ #endif }